CN202045677U - Perforating shaft head - Google Patents
Perforating shaft head Download PDFInfo
- Publication number
- CN202045677U CN202045677U CN2011200841564U CN201120084156U CN202045677U CN 202045677 U CN202045677 U CN 202045677U CN 2011200841564 U CN2011200841564 U CN 2011200841564U CN 201120084156 U CN201120084156 U CN 201120084156U CN 202045677 U CN202045677 U CN 202045677U
- Authority
- CN
- China
- Prior art keywords
- cutter
- hole
- drilling cutter
- clamping bar
- main shaft
- 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
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- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The utility model discloses a perforating shaft head, which comprises a perforating main shaft and a hole drilling cutter, wherein the perforating main shaft is connected with the hole drilling cutter, the hole drilling cutter comprises a hollow drilling cutter, a discharge hole and a clamping rod, the hollow drilling cutter is a pipy drilling cutter with an annular cutting edge at the bottom end, the top end of the hollow drilling cutter is connected with the clamping rod, a boss is formed at the joint of the hollow drilling cutter and the clamping rod, the discharge hole is a through hole running through the hollow drilling cutter and the clamping rod, the clamping rod of the hole drilling cutter is a hollow conical revolving body, and an assembly hole on the shaft head of the perforating main shaft for assembling the hole drilling cutter is in the shape of the conical revolving body. The perforating shaft head has the following benefits: firstly, as the hole drilling cutter is matched with the perforating main shaft through the conical surface, the coaxiality is higher and the stability is better; secondly, when the hole drilling cutter is mounted, the part of the conical revolving body of the hole drilling cutter only needs to be lightly pushed to the shaft head, so that the firm connection can be realized without using any professional tool; and thirdly, when the hole drilling cutter is detached, the hole drilling cutter can be detached by lightly prying a small hole on the side surface of the shaft head through a small-sized screwdriver or other tools.
Description
Technical field
The utility model relates to a kind of drilling tool, especially relates to a kind of punching spindle nose.
Background technology
Automatic punch belongs to a kind of of office equipment, and its utilizes the bore cutter that is connected with the punching main shaft that the paper of below is carried out punching and burrows, and makes that putting in order stacker forms neatly and the hole of contraposition, is beneficial to bind with plastic tube.The clamping bar of traditional bore cutter partly is cylindrical shape, the supporting use of clamping bar of corresponding punching main shaft spindle nose through hole and this bore cutter, bore cutter is fixed on the punching main shaft of puncher by the bar shape clamping bar on its top by screw, because the bore cutter installation and removal need just can be finished by relevant speciality instrument (as screwdriver), therefore use quite inconvenient.
The utility model content
The purpose of this utility model is exactly in order to address the above problem, and provides a kind of bore cutter to need not by professional tool can finish and the punch punching spindle nose of installation and removal of main shaft.
To achieve these goals, the utility model adopts following technical scheme:
A kind of punching spindle nose, it is made up of punching main shaft and bore cutter, described punching main shaft connects bore cutter, described bore cutter comprises core drill cutter, relief hole, clamping bar, the core drill cutter is the cannulate drill cutter that a foundation end has annular cutting edge, described core drill cutter top connects clamping bar, described core drill cutter and clamping bar junction form boss, described relief hole is for connecting the through hole of core drill cutter and clamping bar, the clamping bar of described bore cutter is the hollow cone revolving body, and the pilot hole of described punching main shaft spindle nose assembling bore cutter is the circular cone revolving body.
The taper seat of the clamping bar part of described punching main shaft spindle nose pilot hole and bore cutter agrees with.
The Zhou Jing at the clamping bar of described hollow cone revolving body and core drill cutter connecting portion place is greater than the Zhou Jing of clamping bar head portion, and promptly the bottom of clamping bar is coarser than the top of clamping bar.
The utility model makes improvements traditional punching shaft head portion through hole duct shape, change the through hole of straight-tube shape into circular cone rotational-like through hole, utilization is the frictional force between the circular cone revolving body through hole of the clamping bar of circular cone revolving body and punching shaft head portion, when working head runs up, lean on the taper seat cooperation of the two to reach the fixedly purpose of bore cutter.
The beneficial effects of the utility model are: (1) bore cutter cooperates by taper seat with the punching main shaft, and axiality is higher, and stationarity is better; (2) change bore cutter conveniently, during installation,, need not use any professional tool, just can firmly connect as long as bore cutter circular cone revolving body part one is pushed away gently toward spindle nose; When (3) dismantling instruments such as small-sized screwdriver one are prized gently toward spindle nose side aperture, just drilling tool can be unloaded; (4) endoporus is smooth, and the punching feel is light, not paper jam.
Description of drawings
Fig. 1 is a punching shaft header structure schematic diagram of the present utility model.
Fig. 2 is an A-A cutaway view among Fig. 1.
Fig. 3 is a bore cutter sectional structure schematic diagram of the present utility model.
The specific embodiment
As Fig. 1, Fig. 2, shown in Figure 3, a kind of punching spindle nose, it is made up of punching main shaft 1 and bore cutter 2, described punching main shaft 1 connects bore cutter 2, described bore cutter 2 comprises core drill cutter 21, clamping bar 22, relief hole 23, core drill cutter 21 is the cannulate drill cutter that a foundation end has annular cutting edge, core drill cutter 21 contains hollow bore 210, described core drill cutter top connects clamping bar 22, described clamping bar 22 contains hollow bore 220, described hollow bore 210 and hollow bore 220 common formation relief holes 23, described core drill cutter 21 forms boss 211 with clamping bar 22 junctions, described relief hole 23 is for connecting the through hole of core drill cutter and clamping bar, and the clamping bar 22 of described bore cutter 2 is the circular cone revolving body of hollow, and the pilot hole of described punching main shaft spindle nose assembling bore cutter is the circular cone revolving body.
The taper seat of the clamping bar part of described punching main shaft spindle nose pilot hole and bore cutter agrees with.
The Zhou Jing at the clamping bar of described hollow cone revolving body and core drill cutter connecting portion place is greater than the Zhou Jing of clamping bar head portion, and promptly the bottom of clamping bar is coarser than the top of clamping bar.。
The utility model only changes pilot hole structure and pass partly to the punching main shaft portion, and other structure of the punching main shaft of punching spindle nose is identical with common punching main axle structure, therefore omits the description to other parts, and is succinct to show.
The above only is a preferred implementation of the present utility model, and protection domain of the present utility model is not limited in above-mentioned embodiment, and every technical scheme that belongs to the utility model principle all belongs to protection domain of the present utility model.For a person skilled in the art, some improvement of under the prerequisite that does not break away from principle of the present utility model, carrying out, these improvement also should be considered as protection domain of the present utility model.
Claims (3)
- One kind the punching spindle nose, it is made up of punching main shaft and bore cutter, described punching main shaft connects bore cutter, described bore cutter comprises core drill cutter, relief hole, clamping bar, the core drill cutter is the cannulate drill cutter that a foundation end has annular cutting edge, described core drill cutter top connects clamping bar, described core drill cutter and clamping bar junction form boss, described relief hole is for connecting the through hole of core drill cutter and clamping bar, it is characterized in that: the clamping bar of described bore cutter is the hollow cone revolving body, and the pilot hole of described punching main shaft spindle nose assembling bore cutter is the circular cone revolving body.
- 2. a kind of punching spindle nose as claimed in claim 1 is characterized in that: the taper seat of the clamping bar part of described punching main shaft spindle nose pilot hole and bore cutter agrees with.
- 3. a kind of punching spindle nose as claimed in claim 1 is characterized in that: the Zhou Jing at the clamping bar of described hollow cone revolving body and core drill cutter connecting portion place is greater than the Zhou Jing of clamping bar head portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200841564U CN202045677U (en) | 2011-03-25 | 2011-03-25 | Perforating shaft head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200841564U CN202045677U (en) | 2011-03-25 | 2011-03-25 | Perforating shaft head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202045677U true CN202045677U (en) | 2011-11-23 |
Family
ID=44986000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200841564U Expired - Fee Related CN202045677U (en) | 2011-03-25 | 2011-03-25 | Perforating shaft head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202045677U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103144144A (en) * | 2013-03-25 | 2013-06-12 | 广州科密股份有限公司 | Drilling cutter of binding machine and manufacture method thereof |
| CN105946043A (en) * | 2016-06-20 | 2016-09-21 | 河南省农业科学院园艺研究所 | Isolated-shoot rot resistance identification method for fruit trees |
-
2011
- 2011-03-25 CN CN2011200841564U patent/CN202045677U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103144144A (en) * | 2013-03-25 | 2013-06-12 | 广州科密股份有限公司 | Drilling cutter of binding machine and manufacture method thereof |
| CN105946043A (en) * | 2016-06-20 | 2016-09-21 | 河南省农业科学院园艺研究所 | Isolated-shoot rot resistance identification method for fruit trees |
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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: 20111123 Termination date: 20150325 |
|
| EXPY | Termination of patent right or utility model |