CN203863256U - Round positioning ring on cross-shaped drill bit - Google Patents
Round positioning ring on cross-shaped drill bit Download PDFInfo
- Publication number
- CN203863256U CN203863256U CN201420136070.5U CN201420136070U CN203863256U CN 203863256 U CN203863256 U CN 203863256U CN 201420136070 U CN201420136070 U CN 201420136070U CN 203863256 U CN203863256 U CN 203863256U
- Authority
- CN
- China
- Prior art keywords
- positioning ring
- round positioning
- drill bit
- round
- materials
- 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 - Fee Related
Links
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a round positioning ring on a cross-shaped drill bit and relates to a mechanical part for rock drilling and boring, in particular to an accessory needed by drill bit manufacturing. Compared with an existing cruciform positioning block, the round positioning ring has the advantages that more materials are saved, machining is easier and welding is firmer. The round positioning ring is installed at the center of the upper side of the cross-shaped drill bit. The round positioning ring has the advantages that materials are obtained conveniently, and a small seamless round hollow steel tube can serve as the material; the technology is simple, precision is high, no manufacturing die is needed, and blanking is achieved through cutting by means of a machine tool; materials are saved, punching of a central drainage hole is not needed, and the number of leftover materials are is small; arc and plane contact positioning is adopted between the round positioning ring and four pieces of hard alloy, two gaps exist between the round positioning ring and the four pieces of hard alloy, and welding is facilitated.
Description
Technical field
The utility model relates to a kind of rock drilling, boring component of machine, particularly relate to a kind ofly manufacture, the needed accessory of processing bore bit.
Background technology
Existing bull bit adopts and on bore bit, welds four blocks of carbide alloy, and four carbide alloy composition cross, therefore claim bull bit.On bull bit, there is the locating piece of a crux at the center of four carbide alloy, and center has a hole to communicate with the central row water hole of bull bit, and the locating piece of crux withstands respectively four blocks of carbide alloy and is welded on together on bore bit.Crux locating piece is by Steel Sheet, the draining hole circle material at center, and rim charge has just become tailing after washing out in addition, and stock utilization is not high, and waste is large.Processing stamping parts, mfg. moulding die effort, Fei Cai.Often, dimensional accuracy is difficult to ensure in punching press, and die change needs again to increase cost.After the punching press of crux locating piece, as precision does not reach, trim process more bothers.Another crux locating piece is plane contact location between bull bit center and four blocks of carbide alloy, there is no gap, is unfavorable for welding.
Utility model content
Problem to be solved in the utility model is: provide a kind of and more save material than existing crux locating piece, more easily processing, more firmly novel align member of welding.
The technical solution of the utility model: the utility model adopts the center on bull bit to fill a circular centring ring.
The utility model adopts circular centring ring location, and the one, selection is convenient, and the existing little seamless circular hollow steel pipe source of goods is abundant.The 2nd, technique is simple, precision is high, do not need molding, and little seamless circular hollow steel pipe is through lathe cutting stock.The 3rd, economize on material, do not need punching central row water hole, tailing is few.The 4th, between circular centring ring and four blocks of carbide alloy, be that line contacts location, in carbide alloy and formation gap, circular centring ring circle arc contact site, be conducive to welding.
Brief description of the drawings
Accompanying drawing 1 is structural representation of the present utility model.
In accompanying drawing 1: 1, central row water hole 2, bull bit 3, carbide alloy 4, circular centring ring.
Accompanying drawing 2 is existing crux locating piece schematic diagrames.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
First prior art is briefly described: the center of the crux locating piece shown in accompanying drawing 2 on cruciform bit 2.This crux locating piece is Sheet Metal Forming Technology processing, and the central row water hole and the rim charge that sweep away become tailing.Crux locating piece is plane contact location on bull bit 2 and between four blocks of carbide alloy 3, there is no gap, is unfavorable for welding.
Then the utility model is described in further detail: the bull bit 2 in accompanying drawing 1 has a criss-cross elongated slot on bore bit, has four blocks of carbide alloy 3 to be set in respectively in groove.There is a central row water hole 1 at the center of bull bit 2, and when rock drilling, boring, draining plays cooling effect.Center on cruciform bit 2 fills a circular centring ring 4.The circular hole of circular centring ring 4 communicates with osculum 1.Process circular centring ring 4 and adopt lathe grinding to process little seamless circular hollow steel pipe, have circular hole to exist, do not need punching press, tailing is few.In circular centring ring 4 and the groove of four blocks of carbide alloy 3 on bull bit 2, circular centring ring 4 is in centre, and employing high-frequency induction heating, adds scolder, welding powder and be welded on together on bull bit 2.Circular centring ring 4, on bull bit 2 and between four blocks of carbide alloy 3, is arc surface and plane contact location, i.e. line contact, and the You Liangge gap, arc surface contact position at carbide alloy 3 with circular centring ring 4, is conducive to lower welding powder, firm welding.
Claims (1)
1. the circular centring ring of bull bit, adopts and on bull bit, welds four blocks of carbide alloy; It is characterized in that the center on bull bit fills a circular centring ring, in circular centring ring and the four blocks of carbide alloy groove on bull bit, circular centring ring is welded on bull bit in centre, circular centring ring is on bull bit and between four blocks of carbide alloy, arc surface and plane contact location, i.e. line contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420136070.5U CN203863256U (en) | 2014-03-25 | 2014-03-25 | Round positioning ring on cross-shaped drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420136070.5U CN203863256U (en) | 2014-03-25 | 2014-03-25 | Round positioning ring on cross-shaped drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203863256U true CN203863256U (en) | 2014-10-08 |
Family
ID=51644245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420136070.5U Expired - Fee Related CN203863256U (en) | 2014-03-25 | 2014-03-25 | Round positioning ring on cross-shaped drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203863256U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104526229A (en) * | 2014-12-15 | 2015-04-22 | 哈尔滨理工大学 | Welding clamp for inner chip removal deep-hole drilling blade and application method of welding clamp |
| CN109290661A (en) * | 2017-07-25 | 2019-02-01 | 唐山瑞格特机械设备制造有限公司 | A kind of welding method of novel blast-furnace hole bit |
-
2014
- 2014-03-25 CN CN201420136070.5U patent/CN203863256U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104526229A (en) * | 2014-12-15 | 2015-04-22 | 哈尔滨理工大学 | Welding clamp for inner chip removal deep-hole drilling blade and application method of welding clamp |
| CN109290661A (en) * | 2017-07-25 | 2019-02-01 | 唐山瑞格特机械设备制造有限公司 | A kind of welding method of novel blast-furnace hole bit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204584356U (en) | A kind of rat holing frock | |
| CN203156098U (en) | Improved deep-hole drilling machine | |
| CN203863256U (en) | Round positioning ring on cross-shaped drill bit | |
| CN203426241U (en) | Coreless punching equipment | |
| CN105033037A (en) | Semi-automatic inner hole forming machine | |
| CN106001149A (en) | Semi-automatic inner hole forming machine | |
| CN201768832U (en) | Mold assembly for manufacturing reducing pipes | |
| CN203592042U (en) | Round pipe arc port punching die | |
| CN204565700U (en) | A kind of center support drilling tool | |
| CN202539638U (en) | Deep hole drill bit guide sleeve | |
| CN203751100U (en) | Wind tower platform beam punching tool | |
| CN204366506U (en) | Inner conical drogue Drilling operation positioning tool | |
| CN204074991U (en) | A kind of combination push rod | |
| CN203091515U (en) | Alloy tool and die steel plunger chip | |
| CN203664836U (en) | Tool for machining beads with holes | |
| CN204603388U (en) | Novel drilling depth localization device cutter | |
| CN204546111U (en) | A kind of chip removal base of drilling-tapping center machine | |
| CN203570638U (en) | Protection plate with embedded member for slurry pump | |
| CN105082435A (en) | Pressing die for large tee pipe fitting | |
| CN211387036U (en) | Efficient drilling tool for one-die dual purpose | |
| CN204320910U (en) | With the mould of the chamfering in hole on non-removal materials processing panel beating class pored component | |
| CN204936011U (en) | Large-scale tee pipe fitting compacting tool set | |
| CN204148529U (en) | One efficiently rises cutter | |
| CN202317741U (en) | Machine tool support frame | |
| CN204247822U (en) | A kind of casing wall board forming punch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20170325 |