CN202655695U - Improved compound bit - Google Patents
Improved compound bit Download PDFInfo
- Publication number
- CN202655695U CN202655695U CN 201220194534 CN201220194534U CN202655695U CN 202655695 U CN202655695 U CN 202655695U CN 201220194534 CN201220194534 CN 201220194534 CN 201220194534 U CN201220194534 U CN 201220194534U CN 202655695 U CN202655695 U CN 202655695U
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- bit
- bit body
- sleeve
- drill bit
- chamfering
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Abstract
The utility model belongs to the technical field of bits, and relates to a compound bit, in particular to an improved compound bit which solves the technical problem of unreasonable design of the prior art. The improved compound bit comprises a columnar bit body, a bit head is arranged at one end of the bit body, a spiral drilling edge is arranged on the periphery of the bit body, one end of the drilling edge is connected with the bit head, the other end of the drilling edge extends upwards axially along the bit body, a cylindrical chamfer sleeve is further arranged on the periphery of the bit body, and a chamfer edge is arranged at the lower end of the chamfer sleeve. The improved compound bit is characterized in that the chamfer sleeve is fixed onto the bit body through a buffer positioning structure. Compared with the prior art, the improved compound bit has the advantages that the improved compound bit can be detached or adjusted in real time, and is convenient to maintain or replace and reliable to position.
Description
Technical field
The utility model belongs to the bit technique field, relates to composite drill bit, relates in particular to a kind of modified form composite drill bit.
Background technology
Drill bit is to go out through hole or blind hole in order to drilling on solid material, and can be to the cutter of existing hole reaming.Drill bit commonly used mainly contains fluted drill, chit drill, centre drill, depth drill and cylindrical drill; In existing technology, workpiece need to carry out chamfering to the aperture after boring, and common way is more to carry out chamfering behind the bit change again; The method needs more bit change, has reduced to a certain extent productivity ratio, and the frequent drill bit, easily damages anchor clamps, and labour intensity strengthens simultaneously, is not suitable with current enterprise development demand.
The problem that exists in order to solve prior art, people have carried out long-term exploration, have proposed various solutions.For example, Chinese patent literature discloses a kind of chamfering tool structure [application number: 96213671.9] of drill bit, the bottom of rose reamer section is designed to pointed, anchor ring then cooperates the tapered end shape to be the Twist wave of a uniform outer diameter, the one edge forms a cutting edge face, inner concave then is provided with a volution trough that coincide with the bit grooves direction of rotation, just forms a pair of identical barb in volution trough bilateral outer rim, is provided with some screws at the external diameter end face in addition; Bit point of the drill enters along the volution trough entrance, in the chamfering tool, and the floating seamed edge that is affixed on drill bit of volution trough, identical barb is embedded in the bit grooves of seamed edge both sides just.
Such scheme has improved prior art to a certain extent, but this structure adopts integral structure, and chamfering structure is non-adjustable, after drill bit damage or chamfering structure damage, the drill bit that can only more renew has reduced production efficiency, is also virtually increasing use cost simultaneously.
Summary of the invention
The purpose of this utility model is for the problems referred to above, provides a kind of design more reasonable, simple in structure, can realize in real time dismounting or adjustment, replacing or easy to maintenance, and it is firm to locate, the modified form composite drill bit of long service life.
For achieving the above object, the utility model has adopted following technical proposal: comprise the bit body that is column, end at bit body has drill bit head, has spiral helicine boring sword in the bit body periphery, one end of described boring sword links to each other with drill bit head, the other end axially extends upward along bit body, described bit body is arranged with tubular chamfering sleeve outward, described chamfering sleeve lower end has chamfering blades, it is characterized in that, described chamfering sleeve is fixed on the bit body by the buffer-type location structure.
Owing between chamfering sleeve and bit body, being provided with the buffer-type location structure, keep in repair or change by finishing of buffer-type location structure Simple fast but bit body passes chamfering sleeve, it is firm to locate, and has virtually reduced use cost; When bit wear shortens, utilize equally the buffer-type location structure to realize adjusting in real time, simple and convenient and quick, improved production efficiency.
In above-mentioned modified form composite drill bit, described buffer-type location structure comprises the expansion segment that is arranged on the chamfering sleeve, in expansion segment, be provided with the positioning sleeve that is enclosed within on the bit body, described positioning sleeve made by elastomeric material and respectively with expansion segment and bit body tight fit.It is firm to locate.
In above-mentioned modified form composite drill bit, the top of described bit body has shank.
In above-mentioned modified form composite drill bit, the quantity of described chamfering blades is at least two.
In above-mentioned modified form composite drill bit, described positioning sleeve is made by rubber.
In above-mentioned modified form composite drill bit, form ring-shaped step between described expansion segment and the chamfering sleeve.
Compared with prior art, the advantage of this modified form composite drill bit is: 1, design is more reasonable, simple in structure.2, owing to being provided with the buffer-type location structure between chamfering sleeve and bit body, keeping in repair or change by finishing of buffer-type location structure Simple fast but bit body passes chamfering sleeve, it is firm to locate, and has virtually reduced use cost; When bit wear shortens, utilize equally the buffer-type location structure to realize adjusting in real time, simple and convenient and quick, improved production efficiency.3, long service life.
Description of drawings
Fig. 1 is the broken section structural representation that the utility model provides.
Among the figure, bit body 1, drill bit head 11, boring sword 12, chamfering sleeve 2, chamfering blades 21, expansion segment 3, positioning sleeve 4, shank 14, ring-shaped step 5.
The specific embodiment
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, this modified form composite drill bit, comprise the bit body 1 that is column, end at bit body 1 has drill bit head 11, has spiral helicine boring sword 12 in bit body 1 periphery, one end of boring sword 12 links to each other with drill bit head 11, the other end axially extends upward along bit body 1, the top of bit body 1 has shank 14, outside bit body 1, be arranged with tubular chamfering sleeve 2, have chamfering blades 21 in chamfering sleeve 2 lower ends, described chamfering sleeve 2 is fixed on the bit body 1 by the buffer-type location structure.As prioritization scheme, the quantity of the chamfering blades 21 here is two, arranges too much to cause cost to increase.
Say further, above-mentioned buffer-type location structure comprises the expansion segment 3 that is arranged on the chamfering sleeve 2, in expansion segment 3, be provided with the positioning sleeve 4 that is enclosed within on the bit body 1, between expansion segment 3 and chamfering sleeve 2, form ring-shaped step 5, positioning sleeve 4 made by elastomeric material and respectively with expansion segment 3 and bit body 1 tight fit.As prioritization scheme, the positioning sleeve here 4 is made by rubber.
In the present embodiment, owing to being provided with the buffer-type location structure between chamfering sleeve 2 and bit body 1, keeping in repair or change by finishing of buffer-type location structure Simple fast but bit body 1 passes chamfering sleeve 2, it is firm to locate, and has virtually reduced use cost; When bit wear shortens, utilize equally the buffer-type location structure to realize adjusting in real time, simple and convenient and quick, improved production efficiency.
Specific embodiment described herein only is to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has more used the terms such as bit body 1, drill bit head 11, boring sword 12, chamfering sleeve 2, chamfering blades 21, expansion segment 3, positioning sleeve 4, shank 14, ring-shaped step 5, do not get rid of the possibility of using other term.Using these terms only is in order to describe more easily and explain essence of the present utility model; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (6)
1. modified form composite drill bit, comprise the bit body (1) that is column, end at bit body (1) has drill bit head (11), has spiral helicine boring sword (12) in bit body (1) periphery, one end of described boring sword (12) links to each other with drill bit head (11), the other end axially extends upward along bit body (1), the outer tubular chamfering sleeve (2) that is arranged with of described bit body (1), described chamfering sleeve (2) lower end has chamfering blades (21), it is characterized in that, described chamfering sleeve (2) is fixed on the bit body (1) by the buffer-type location structure.
2. modified form composite drill bit according to claim 1, it is characterized in that, described buffer-type location structure comprises the expansion segment (3) that is arranged on the chamfering sleeve (2), in expansion segment (3), be provided with the positioning sleeve (4) that is enclosed within on the bit body (1), described positioning sleeve (4) made by elastomeric material and respectively with expansion segment (3) and bit body (1) tight fit.
3. modified form composite drill bit according to claim 1 and 2 is characterized in that, the top of described bit body (1) has shank (14).
4. modified form composite drill bit according to claim 3 is characterized in that, the quantity of described chamfering blades (21) is at least two.
5. modified form composite drill bit according to claim 2 is characterized in that, described positioning sleeve (4) is made by rubber.
6. modified form composite drill bit according to claim 2 is characterized in that, forms ring-shaped step (5) between described expansion segment (3) and the chamfering sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220194534 CN202655695U (en) | 2012-04-28 | 2012-04-28 | Improved compound bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220194534 CN202655695U (en) | 2012-04-28 | 2012-04-28 | Improved compound bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202655695U true CN202655695U (en) | 2013-01-09 |
Family
ID=47450628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220194534 Expired - Fee Related CN202655695U (en) | 2012-04-28 | 2012-04-28 | Improved compound bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202655695U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103042256A (en) * | 2012-12-12 | 2013-04-17 | 锑玛(苏州)精密工具有限公司 | Small diameter stepped drill |
| CN103706857A (en) * | 2013-12-24 | 2014-04-09 | 无锡雨田精密工具有限公司 | Counterboring and milling cutter |
| CN103722198A (en) * | 2013-12-27 | 2014-04-16 | 昆山迈致治具科技有限公司 | Cutter with protection function |
| CN104708084A (en) * | 2015-03-05 | 2015-06-17 | 苏州经贸职业技术学院 | Drilling and chamfering mechanism |
| CN104801774A (en) * | 2015-03-30 | 2015-07-29 | 苏州蓝王机床工具科技有限公司 | Pull clamp elastic sleeve locking type chamfering device |
| CN104801766A (en) * | 2015-03-30 | 2015-07-29 | 苏州蓝王机床工具科技有限公司 | Universal chamfering device of cushion cover type multi-diameter cutter |
| CN104816040A (en) * | 2015-03-30 | 2015-08-05 | 苏州蓝王机床工具科技有限公司 | Conical clamping type double-edge-block support chamfering machine |
| CN105499707A (en) * | 2015-12-31 | 2016-04-20 | 广西玉林市朗泰汽车零部件有限公司 | Combined type cutter |
| CN107486581A (en) * | 2017-08-21 | 2017-12-19 | 安徽省康宇水电机械成套设备有限公司 | A kind of auto parts and components process target drill |
| CN109365857A (en) * | 2018-12-14 | 2019-02-22 | 广信铝业股份有限公司 | A kind of aluminum profile perforation processing device |
| CN111922435A (en) * | 2020-07-30 | 2020-11-13 | 广东长盈精密技术有限公司 | Machining tool, chamfering tool mechanism thereof and assembling method |
-
2012
- 2012-04-28 CN CN 201220194534 patent/CN202655695U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103042256A (en) * | 2012-12-12 | 2013-04-17 | 锑玛(苏州)精密工具有限公司 | Small diameter stepped drill |
| CN103706857A (en) * | 2013-12-24 | 2014-04-09 | 无锡雨田精密工具有限公司 | Counterboring and milling cutter |
| CN103722198A (en) * | 2013-12-27 | 2014-04-16 | 昆山迈致治具科技有限公司 | Cutter with protection function |
| CN104708084A (en) * | 2015-03-05 | 2015-06-17 | 苏州经贸职业技术学院 | Drilling and chamfering mechanism |
| CN104801774A (en) * | 2015-03-30 | 2015-07-29 | 苏州蓝王机床工具科技有限公司 | Pull clamp elastic sleeve locking type chamfering device |
| CN104801766A (en) * | 2015-03-30 | 2015-07-29 | 苏州蓝王机床工具科技有限公司 | Universal chamfering device of cushion cover type multi-diameter cutter |
| CN104816040A (en) * | 2015-03-30 | 2015-08-05 | 苏州蓝王机床工具科技有限公司 | Conical clamping type double-edge-block support chamfering machine |
| CN105499707A (en) * | 2015-12-31 | 2016-04-20 | 广西玉林市朗泰汽车零部件有限公司 | Combined type cutter |
| CN107486581A (en) * | 2017-08-21 | 2017-12-19 | 安徽省康宇水电机械成套设备有限公司 | A kind of auto parts and components process target drill |
| CN109365857A (en) * | 2018-12-14 | 2019-02-22 | 广信铝业股份有限公司 | A kind of aluminum profile perforation processing device |
| CN109365857B (en) * | 2018-12-14 | 2020-02-18 | 广信铝业股份有限公司 | Aluminum profile punching device |
| CN111922435A (en) * | 2020-07-30 | 2020-11-13 | 广东长盈精密技术有限公司 | Machining tool, chamfering tool mechanism thereof and assembling method |
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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 |
Granted publication date: 20130109 Termination date: 20160428 |