CN203936397U - A kind of knife bar of replaceable cutter - Google Patents
A kind of knife bar of replaceable cutter Download PDFInfo
- Publication number
- CN203936397U CN203936397U CN201420316619.9U CN201420316619U CN203936397U CN 203936397 U CN203936397 U CN 203936397U CN 201420316619 U CN201420316619 U CN 201420316619U CN 203936397 U CN203936397 U CN 203936397U
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- CN
- China
- Prior art keywords
- handle
- knife
- dress
- hot charging
- hole
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Abstract
The application discloses a kind of knife bar of replaceable cutter, comprise operator handle, replaceable cutter group and locking part, the rear side end face of operator handle offers installing hole, this installing hole along operator handle axially by backward front extension, front end face of operator handle offers handle of a knife dress and closes hole, this handle of a knife dress close hole along operator handle axially by front extending back, installing hole and handle of a knife dress closes and between hole, forms connecting portion, replaceable cutter group includes hot charging formula handle of a knife and cutting tool, the front intersegmental part of this hot charging formula handle of a knife forms the gripping section of hollow form, replaceable cutter group is arranged in handle of a knife dress with the rear end correspondence of hot charging formula handle of a knife and closes hole, locking part is packed into by installing hole correspondence, and wears perforation locking and be incorporated into the rear end of hot charging formula handle of a knife with one end, thus, simple in structure, easy to operate, can have conventional tool concurrently and can change easily cutter and hot charging formula knife bar and adding man-hour and be difficult for producing the advantage of beat.
Description
Technical field
The utility model relates to the cutting instrument of machining, relates in particular to a kind of knife bar of replaceable cutter.
Background technology
General knife bar is difficult for aiming at center cutter in the fixing mode of bolt side direction packing, makes cutter can produce beat in the process of start, affects processing quality.
Utility model content
The purpose of this utility model is the knife bar that is to provide a kind of replaceable cutter, simple in structure, easy to operate, can have conventional tool concurrently and can change easily cutter and hot charging formula knife bar and adding man-hour and be difficult for producing the advantage of beat.
According to an aspect of the present utility model, a kind of knife bar of replaceable cutter is provided, comprise operator handle, replaceable cutter group and locking part, the rear side end face of operator handle offers installing hole, this installing hole along operator handle axially by backward front extension, front end face of operator handle offers handle of a knife dress and closes hole, this handle of a knife dress close hole along operator handle axially by front extending back, installing hole and handle of a knife dress closes and between hole, forms connecting portion, the central authorities of this connecting portion are penetrated with connection installing hole and handle of a knife fills the perforation of closing hole, the internal diameter of this perforation is less than the internal diameter of installing hole, the periphery of operator handle offers more than one inlet channel, this inlet channel L-shaped and extend to operator handle below, replaceable cutter group includes hot charging formula handle of a knife and cutting tool, the front intersegmental part of this hot charging formula handle of a knife forms the gripping section of hollow form, cutting tool is fixed on the gripping section of hot charging formula handle of a knife, replaceable cutter group is arranged in handle of a knife dress with the rear end correspondence of hot charging formula handle of a knife and closes hole, the periphery of the oblique cone portion of this hot charging formula handle of a knife offer one above and corresponding to the apopore of this inlet channel, and this apopore is aligned with this inlet channel, locking part is packed into by installing hole correspondence, and wears perforation locking and be incorporated into the rear end of hot charging formula handle of a knife with one end.
In some embodiments: handle of a knife dress closes hole and has oblique conical section and vertical section, this oblique conical section is the oblique cone pipe portion that opening is gradually-reducing shape after by forward direction, this vertical section is connected in the rear of oblique conical section and along the straight pipe portion of axial formation, hot charging formula handle of a knife is along axially closing portion by sequentially forming dress before backward, oblique cone portion and cutter holder portion, this dress portion of closing is shorter in length than the length of this vertical section, and the diameter that this dress closes portion is less than or equal to the internal diameter of vertical section, oblique cone portion is connected in dress and closes the front end of portion, and the tapering of oblique cone portion is corresponding to the tapering of oblique conical section, this cutter holder portion is connected in the front end of oblique cone portion and is gradually-reducing shape by before backward, gripping section is formed at the central authorities of cutter holder portion, replaceable cutter group penetrates handle of a knife dress with the back segment correspondence of hot charging formula handle of a knife and closes hole, and oblique cone portion is fitted tightly in oblique conical section.
In some embodiments: oblique cone portion and dress close portion's connecting place around being concaved with annular groove.
In some embodiments: the tapering of oblique conical section is less than or equal to 3 degree.
In some embodiments: the trailing flank that dress closes portion offers screw, the threaded portion that locking part has head and extended forward by this head, the diameter of this head is less than or equal to the diameter of installing hole, locking part is packed into by installing hole, and wears perforation locking and be incorporated into the screw of hot charging formula handle of a knife with threaded portion.
The utility model is simple in structure, easy to operate, can have conventional tool concurrently and can change easily cutter and hot charging formula knife bar and adding man-hour and be difficult for producing the advantage of beat.
Brief description of the drawings
Fig. 1 is the sectional axonometric drawing of the knife bar of a kind of replaceable cutter of the utility model.
Fig. 2 is the front sectional elevation of the knife bar of a kind of replaceable cutter of the utility model.
Detailed description of the invention
Below in conjunction with brief description of the drawings, the utility model is described in further detail.
As shown in Figure 1 and Figure 2, a kind of knife bar of replaceable cutter, includes operator handle 10, replaceable cutter group 20 and locking part 30.Operator handle 10 is along axially by sequentially forming taper shank portion 11 before backward, flange portion 12 and clamping part 13, rear side end face by taper shank portion 11 offers installing hole 110, installing hole 110 along operator handle 10 axially by backward front extension, the anterior end surface of clamping part 13 offers handle of a knife dress and closes hole 130, handle of a knife dress close hole 130 along operator handle 10 axially by front extending back, and handle of a knife dress closes hole 130 and has oblique conical section 1301 and vertical section 1302, oblique conical section 1301 is the oblique cone pipe portion of gradually-reducing shape after by forward direction for opening, and the tapering of oblique conical section 1301 is less than or equal to 3 degree, vertical section 1302 is connected in the rear of oblique conical section 1301 and along the straight pipe portion of axial formation, close and between hole 130, form connecting portion 14 in installing hole 120 and handle of a knife dress, be penetrated with the perforation 140 that is communicated with installing hole 120 and this handle of a knife dress and closes hole 130 in the central authorities of connecting portion 14, the internal diameter of perforation 140 is less than the internal diameter of vertical section 1302 and installing hole 110, periphery both sides in operator handle 10 offer respectively inlet channel 15 one, two inlet channels 15 are L-shaped and extend to the below of this operator handle 10.
Replaceable cutter group 20 includes hot charging formula handle of a knife 21 and cutting tool 22, hot charging formula handle of a knife 21 is along axially closing portion 211 by sequentially forming dress before backward, oblique cone portion 212 and cutter holder portion 213, dress closes portion 211 and is upright cylindric, and offer screw 2110 in the trailing flank that dress closes portion 211, dress closes the length that is shorter in length than vertical section 1302 of portion 211, and the diameter that dress closes portion 211 is less than or equal to the internal diameter of vertical section 1302, oblique cone portion 212 is connected in dress and closes the front end of portion 211, and portion's 211 connecting places close around being concaved with annular groove 2120 with dress in oblique cone portion 212, damage handle of a knife dress of the wedge angle that can avoid producing in two joint places closes hole 130, the tapering of oblique cone portion 212 is corresponding to the tapering of oblique conical section 1301, cutter holder portion 213 is connected in the front end of oblique cone portion 212 and is gradually-reducing shape by before backward, form the gripping section 2130 of hollow form in the front intersegmental part of cutter holder portion 213, cutting tool 22 can be drill bit, end mill(ing) cutter, flat iron cutter, Hole boring knife, the cutter that the various purposes such as tapping knife is different, in the present embodiment, cutting tool 22 is drill bit, under not-connected status, the back segment diameter of cutting tool 22 is greater than the internal diameter of gripping section 2130, cutting tool 22 is incorporated into the gripping section 2130 of hot charging formula handle of a knife 21 in the mode of expanding with heat and contract with cold, gripping section 2130 is with heater Baking out, gripping section 2130 is expanded and internal diameter is temporary transient expand after, insert in gripping section 2130 with the rear end of cutting tool 22 again, after to be held section of 2130 cooling internal diameters are inwardly retracted, can securely cutting tool 22 be clamped, replaceable cutter group 20 penetrates this handle of a knife dress with the back segment correspondence of hot charging formula handle of a knife 21 and closes hole 130, and oblique cone portion 212 is fitted tightly in oblique conical section 1301, periphery in the oblique cone portion 212 of hot charging formula handle of a knife 21 offers respectively two apopores 214 corresponding to two inlet channels 15, and two apopores 214 are aligned with two inlet channels 15, in the time that hot charging formula handle of a knife 21 is installed in operator handle 10, two apopores 214 and two inlet channels 15 form and connect, make cooling fluid enter and to be discharged by two apopores 214 by two inlet channels 15, carry out cooling with operator handle 10 and replaceable cutter group 20.
The threaded portion 32 that locking part 30 has head 31 and extended forward by head 31, offer slot 310 for hand-held tool rotation lock firmware 30 in the rear side of head 31, the diameter of head 31 is less than or equal to the diameter of installing hole 110, locking part 30 is packed into by installing hole 110, and wears perforation 140 lockings with threaded portion 32 and be incorporated into the screw 2110 of hot charging formula handle of a knife 21.
Replaceable cutter group 20 can correspondence pack in operator handle 10, and be locked on the rear of replaceable cutter group 201 with locking part 30, because locking part 30 is rear pull type locking, make the locking strength of locking part 30 and the axle center of hot charging formula handle of a knife 21 form same axial, and replaceable cutter group 20 is the assembling of hot charging formula, very firm when clamping, therefore, when replaceable cutter group 20 adds man-hour, be difficult for producing the problem of laterally offset.
The above is only a kind of embodiment of the present utility model; it should be pointed out that to those skilled in the art, do not departing under the prerequisite of the utility model creation design; can also make some similar distortion and improvement, within these also should be considered as protection domain of the present utility model.
Claims (5)
1. the knife bar of a replaceable cutter, it is characterized in that: comprise operator handle, replaceable cutter group and locking part, the rear side end face of described operator handle offers installing hole, this installing hole along described operator handle axially by backward front extension, front end face of described operator handle offers handle of a knife dress and closes hole, this handle of a knife dress close hole along described operator handle axially by front extending back, described installing hole and handle of a knife dress closes and between hole, forms connecting portion, the central authorities of this connecting portion are penetrated with the described installing hole of connection and handle of a knife fills the perforation of closing hole, the internal diameter of this perforation is less than the internal diameter of described installing hole, the periphery of described operator handle offers more than one inlet channel, this inlet channel is L-shaped and extend to the below of described operator handle, described replaceable cutter group includes hot charging formula handle of a knife and cutting tool, the front intersegmental part of this hot charging formula handle of a knife forms the gripping section of hollow form, described cutting tool is fixed on the gripping section of described hot charging formula handle of a knife, described replaceable cutter group is arranged in described handle of a knife dress with the rear end correspondence of hot charging formula handle of a knife and closes hole, the periphery of the oblique cone portion of this hot charging formula handle of a knife offer one above and corresponding to the apopore of described inlet channel, and this apopore is aligned with this inlet channel, described locking part is packed into by described installing hole correspondence, and wears described perforation locking and be incorporated into the rear end of described hot charging formula handle of a knife with one end.
2. the knife bar of a kind of replaceable cutter according to claim 1, it is characterized in that: described handle of a knife dress closes hole and has oblique conical section and vertical section, this oblique conical section is the oblique cone pipe portion that opening is gradually-reducing shape after by forward direction, this vertical section is connected in the rear of oblique conical section and along the straight pipe portion of axial formation, described hot charging formula handle of a knife is along axially closing portion by sequentially forming dress before backward, oblique cone portion and cutter holder portion, this dress portion of closing is shorter in length than the length of this vertical section, and the diameter that this dress closes portion is less than or equal to the internal diameter of vertical section, oblique cone portion is connected in dress and closes the front end of portion, and the tapering of oblique cone portion is corresponding to the tapering of oblique conical section, this cutter holder portion is connected in the front end of oblique cone portion and is gradually-reducing shape by before backward, described gripping section is formed at the central authorities of described cutter holder portion, described replaceable cutter group penetrates described handle of a knife dress with the back segment correspondence of described hot charging formula handle of a knife and closes hole, and described oblique cone portion is fitted tightly in described oblique conical section.
3. the knife bar of a kind of replaceable cutter according to claim 2, is characterized in that: described oblique cone portion and dress close portion's connecting place around being concaved with annular groove.
4. the knife bar of a kind of replaceable cutter according to claim 3, is characterized in that: the tapering of described oblique conical section is less than or equal to 3 degree.
5. according to the knife bar of a kind of replaceable cutter described in claim 2 to 4 any one, it is characterized in that: the trailing flank that described dress closes portion offers screw, the threaded portion that described locking part has head and extended forward by this head, the diameter of this head is less than or equal to the diameter of described installing hole, described locking part is packed into by described installing hole, and wears described perforation locking and be incorporated into the screw of described hot charging formula handle of a knife with described threaded portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420316619.9U CN203936397U (en) | 2014-06-16 | 2014-06-16 | A kind of knife bar of replaceable cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420316619.9U CN203936397U (en) | 2014-06-16 | 2014-06-16 | A kind of knife bar of replaceable cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203936397U true CN203936397U (en) | 2014-11-12 |
Family
ID=51855745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420316619.9U Expired - Fee Related CN203936397U (en) | 2014-06-16 | 2014-06-16 | A kind of knife bar of replaceable cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203936397U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104785798A (en) * | 2015-04-20 | 2015-07-22 | 中山市利群精密实业有限公司 | Main shaft structure of numerically-controlled machine tool |
| CN104785829A (en) * | 2015-04-20 | 2015-07-22 | 中山市利群精密实业有限公司 | Cutter bar device of numerically-controlled machine tool and operation method thereof |
| CN109226797A (en) * | 2018-08-22 | 2019-01-18 | 深圳信息职业技术学院 | A kind of novel combination type knife bar |
| CN113458499A (en) * | 2021-06-11 | 2021-10-01 | 无锡拉尔夫刀具有限公司 | Combined reamer for hole machining |
-
2014
- 2014-06-16 CN CN201420316619.9U patent/CN203936397U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104785798A (en) * | 2015-04-20 | 2015-07-22 | 中山市利群精密实业有限公司 | Main shaft structure of numerically-controlled machine tool |
| CN104785829A (en) * | 2015-04-20 | 2015-07-22 | 中山市利群精密实业有限公司 | Cutter bar device of numerically-controlled machine tool and operation method thereof |
| CN109226797A (en) * | 2018-08-22 | 2019-01-18 | 深圳信息职业技术学院 | A kind of novel combination type knife bar |
| CN113458499A (en) * | 2021-06-11 | 2021-10-01 | 无锡拉尔夫刀具有限公司 | Combined reamer for hole machining |
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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: 20141112 Termination date: 20150616 |
|
| EXPY | Termination of patent right or utility model |