CN2041221U - Changeable arbor of fly cutter - Google Patents
Changeable arbor of fly cutter Download PDFInfo
- Publication number
- CN2041221U CN2041221U CN 88209255 CN88209255U CN2041221U CN 2041221 U CN2041221 U CN 2041221U CN 88209255 CN88209255 CN 88209255 CN 88209255 U CN88209255 U CN 88209255U CN 2041221 U CN2041221 U CN 2041221U
- Authority
- CN
- China
- Prior art keywords
- screw rod
- connecting screw
- knife bar
- worm gear
- arbor
- 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.)
- Withdrawn
Links
Landscapes
- Milling Processes (AREA)
Abstract
The utility model discloses a changeable arbor of fly cutters. The utility model is characterized in that a connecting screw rod and connecting screw nuts in the arbor are replaceable, and the lead and the disclination are equal to the lead and the disclination of a workpiece worm screw. Namely, one arbor can match connected screw thread pairs with different specifications, and a plurality of worm wheels with different specifications can be processed. The utility model has the advantages of simple structure, convenient operation, high rigidity, high production efficiency, and the definite process precision can be guaranteed.
Description
Belong to the machining tool part
The utility model is a kind of worm gear cutting tool.Be applicable to the processing of single-piece or small lot worm gear, the helical pitch of the knife bar connecting thread of currently used worm gear cutting tool should equal the helical pitch of workpiece worm screw.Therefore the worm gear of a kind of specification of every processing just must design and make corresponding knife bar, adopt the cutting force in the existing knife bar cutting worm gear process to transmit simultaneously by the friction between holding screw and the connecting screw rod, very unreliable, careless slightly, will forge a knife or make the process failure.Because tapered sleeve and screw rod are matched in clearance, under the effect of holding screw, make knife bar produce circular runout, this just directly influences the machining accuracy of worm gear.
Main task of the present utility model be development a kind of simple in structure, easy to operate, reduce labor intensity, increase work efficiency, rigidity well and can guarantee the interchangeable exhibition formula fly cutter knife bar of certain machining accuracy.
The purpose of this utility model is that available one knife bar, and the connecting thread pair of joining different size can be processed the worm gear of several different sizes.That is to say that the user can manufacture the weak point that the secondary fixed worm gear that just can go out to have certain essence in the short period of time of corresponding connecting thread overcomes above phenomenon according to the worm gear of being processed.
Referring to accompanying drawing
Fig. 1 is interchangeable exhibition formula fly cutter knife bar front view
The interchangeable exhibition formula fly cutter knife bar that the utility model is developed, formed by parts such as knife bar, cutter head, connection screw rod, taper shank bodies, the connection screw rod (7) that its main characteristics are knife bars is interchangeable with being connected nut (8), its helical pitch rotation direction should equal helical pitch and the rotation direction of workpiece worm screw, is to realize necessary exhibition Cheng Yundong in the rolling cut worm gear process. Main shape and structure are: knife bar (14) right-hand member is packed in the carriage of gear hobbing machine knife frame, cutter head (13) is packed in the circular hole of knife bar (14), fastening nut (15), utilize gland (19) left end semicircle orifice that cutter head (13) is compressed (accompanying drawing K is to view), knife bar (14) left side processes groove, in circular hole is arranged, mill out keyway at connection screw rod (7) along the axis direction, flat side is milled at A-A section place, connect in the hole of screw rod (7) right-hand member cylinder insertion knife bar (14) left end, tighten tightening screw (12), compress steel ball (11), the flat side who connects screw rod (7) tightly is bumped in the groove of knife bar (14) left end. Connect the screw thread on the screw rod (7), its tooth shape is trapezoidal, and pitch is modulus. Cutting force in the rolling cut worm gear process is to be transmitted by feather key (5), triangle clutch tooth, in use, connect screw rod (7) neck and be inserted in knife bar (14), be connected 12 by straight end-face key, inclined-plane, steel ball (11) with the tightening screw) withstand steel ball (11) and be stuck on the inclined-plane of connection screw rod neck. Taper shank body (6) is connected with screw rod by connecting part on the parts that connect screw rod, and this connection part forms by connecting nut (8), tightening screw (1), feather key (5) and combined cover (10) etc. Connect nut (8) and be fixed on the upper screw rod (7) that connects of taper shank body (6) with screw thread form screw-in connection nut (8) by tightening screw (1), connecting on screw rod (7) axis has a keyway, connects the feather key (5) on the part The upper end is fixed by steel ball (3) by combined cover (10), and the lower end of feather key (5) embeds and connects in screw rod (7) keyway and can slidably reciprocate. In the end relative with taper shank body (6), the left part of combined cover (10) a triangle clutch tooth that can mutually combine is arranged, right-hand member has annular circular arc groove, and steel ball (3) can roll in annular circular arc groove. When gland (9) when screwing, the triangle clutch tooth of the triangle clutch tooth of taper shank body (6) right-hand member and combined cover (10) left end mutually combines, and gets final product radial feed, loosening gland (9), the triangle clutch tooth at two ends separately, knife bar gets final product backward rotation. The setting angle of knife bar and cutter head and position should be the same with the engagement state of worm gear and worm screw, and the axial line of knife bar should be positioned at the plane, center of processed worm gear. The adjustment of gear-hobbing machine divided teeth gear should meet the speed ratio relation that the worm gear worm screw is rotated, and namely knife bar is goed around, and processed worm gear should turn over a tooth (single start worm) or several teeth (multistart worm).
Embodiment:
In use, fly cutter wants the centering start rough lumber fluting depth of cut than the 0.7-1.5mm of full-depth tooth higher primary school that requires, and reserves essence and cuts surplus.After treating that rough lumber has been slotted; shut down and radially withdraw from fly cutter, loosening gland rotates knife bar 2-3 and changes; aim at groove; tighten gland, radially feed is dark entirely to tooth, makes machining center apart from equaling the design centre distance; start; essence is cut, and can shut down after workpiece turns over a commentaries on classics, unclamps gland; (it is higher that General N=6-12 works as requirement on machining accuracy in backward rotation knife bar 1/N commentaries on classics; N got higher value when modulus was big), aim at groove, tighten gland; start; smart cutting spread becomes, and so moves in circles, till finishing to the whole generates of teeth.
The interchangeable exhibition formula fly cutter cutter that the utility model is developed flies bar, and is simple in structure, easily Make, if mix this kind knife bar at gear-hobbing machine, the user manufactures corresponding connecting thread pair according to the worm gear of processing just can process the worm gear with certain precision in the short time.
The Figure of description explanation
1.-tightening screw 19.-gland
2.-spring
3.-steel ball
4.-shaft-use elastic gear ring
5.-feather key
6.-taper shank body
7.-connecting screw rod
8.-attaching nut
9.-gland
10.-combined cover
11.-steel ball
12.-holding screw
13.-cutter head
14.-knife bar
15.-nut
16.-nut
17.-packing ring
18.-nut
Claims (3)
1, a kind of worm gear cutting tool of being made up of knife bar, cutter head, connecting screw rod is characterized in that connecting screw rod (7) neck is inserted in knife bar (14), is connected by straight end-face key, inclined-plane, steel ball (11) and holding screw (12) simultaneously.Straight end-face key withstands on the neck of connecting screw rod, is withstood firm ball and is stuck on the inclined-plane of connecting screw rod neck by holding screw.
2, worm gear cutting tool according to claim 1 is characterized in that taper shank body (6) is connected with screw rod by connector, and connector is made up of attaching nut (8) holding screw (1), saddle (5) and combined cover (10) etc.
3, worm gear cutting tool according to claim 2 it is characterized in that connecting screw rod (7) screws in attaching nut (8) with screw-type, and attaching nut (8) is fixed on the taper shank body (6) by holding screw (1).On connecting screw rod (7) axis keyway is arranged, feather key (5) top is fixing by steel ball (3) by combined cover (10), and the lower end embeds connecting screw rod (7) keyway and can slidably reciprocate.Have in the end relative, the end of combined cover (10) with taper shank body (6) a triangle clutch tooth that can mutually combine, when gland (9) when screwing the triangle clutch tooth at two ends mutually combine can radially feed, loosening gland (9) two ends triangle clutch tooth separately can the backward rotation knife bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88209255 CN2041221U (en) | 1988-07-30 | 1988-07-30 | Changeable arbor of fly cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88209255 CN2041221U (en) | 1988-07-30 | 1988-07-30 | Changeable arbor of fly cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2041221U true CN2041221U (en) | 1989-07-19 |
Family
ID=4842936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88209255 Withdrawn CN2041221U (en) | 1988-07-30 | 1988-07-30 | Changeable arbor of fly cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2041221U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152150A (en) * | 2011-04-26 | 2011-08-17 | 莱芜钢铁股份有限公司 | Offline rapid change tool setting device of fly cutter blade |
| CN107717138A (en) * | 2016-08-10 | 2018-02-23 | 中钢集团衡阳重机有限公司 | A kind of dual clamping mode of worm gear fly cutter |
| CN107717139A (en) * | 2016-08-10 | 2018-02-23 | 中钢集团衡阳重机有限公司 | A kind of clamping mode of worm gear fly cutter |
-
1988
- 1988-07-30 CN CN 88209255 patent/CN2041221U/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152150A (en) * | 2011-04-26 | 2011-08-17 | 莱芜钢铁股份有限公司 | Offline rapid change tool setting device of fly cutter blade |
| CN102152150B (en) * | 2011-04-26 | 2013-04-10 | 山东钢铁股份有限公司 | Offline rapid change tool setting device of fly cutter blade |
| CN107717138A (en) * | 2016-08-10 | 2018-02-23 | 中钢集团衡阳重机有限公司 | A kind of dual clamping mode of worm gear fly cutter |
| CN107717139A (en) * | 2016-08-10 | 2018-02-23 | 中钢集团衡阳重机有限公司 | A kind of clamping mode of worm gear fly cutter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |