CN203448694U - Combined countersinking cutter - Google Patents
Combined countersinking cutter Download PDFInfo
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- CN203448694U CN203448694U CN201320495166.6U CN201320495166U CN203448694U CN 203448694 U CN203448694 U CN 203448694U CN 201320495166 U CN201320495166 U CN 201320495166U CN 203448694 U CN203448694 U CN 203448694U
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Abstract
The utility model discloses a combined countersinking cutter. The combined countersinking cutter comprises a cutter bar, a cutter disk and a cutter blade, wherein the cutter disk is axially fastened to the cutter bar through a locking bolt and a pressing sleeve or is axially fastened to the cutter bar through the locking bolt directly; a groove which does not pass through the axis of the cutter disk is formed in the end surface of the cutter disk; the cutter blade is embedded into the groove or is fixed to the groove through a bolt. The combined countersinking cutter adopts a combined cutter bar structure, and the cutter disk is directly fastened to the cutter bar through the locking bolt or is fastened to the cutter bar through the pressing sleeve, so that the replacement and the machining of the cutter bar and the cutter disk are facilitated, and the cost of the cutter bar and the cost of the cutter disk are effectively reduced; the anti-torque strength of the cutter bar is enhanced and the service life of the cutter bar is prolonged by forming the cutter blade groove which does not pass through the axis in the end surface of the cutter disk; the cutter blade is convenient to replace and adjust by embedding the cutter blade into the groove or fixing the bolt to the groove, and batches of machining production is facilitated. The combined countersinking cutter disclosed by the utility model works stably and reliably, and is high in efficiency, compact in structure and convenient to place; the using cost can be effectively reduced.
Description
Technical field
The utility model belongs to machine cut cutting-tool engineering field, is specifically related to that a kind of working stability is reliable, efficiency is high, compact conformation, and Combined reaming cutter easily changes the outfit.
Background technology
Countersink is the dedicated tool for processing column shape counter sink, taper counter sink and boss section etc. on the hole having processed, there is the advantage higher than countersunk drilling processing counterbore efficiency, axiality is good, there is again the feature being dominant than milling cutter processing boss perpendicularity, in machining, be used widely.
In existing process technology, generally add man-hour carrying out spot-facing and boss thereof, all use simple and easy knife bar that countersink is installed.It is to be directly installed on knife bar by connecting bolt by blade that simple and easy knife bar is installed countersink, i.e. opening square hole on knife bar inserts after blade with bolt fastening or directly blade is welded on knife bar along axis.In use, owing to having countersink installing hole on knife bar, cause the anti-twisting property of knife bar poor; During spot-facing, pilot hole inner wall coarse due to workpiece to be processed, easily cause knife rod head targeting part and machining hole wearing and tearing large, during spot-facing, chip surface is concavo-convex, vibration also can make spigot surface skew unstable wear, thereby ream mouth end-grain cutting bits oscillation mark is increased, and causes the friction of knife bar and machining hole to increase, the frayed easy fracture of square hole downside of inserting tool section, causes knife bar to scrap; In addition, material to be processed is really up to the mark, also can make vibration cutting strengthen, thereby the bolt of fastening blade is easily moved, and produces tipping phenomenon, directly affects the safety of operation process.The damage of knife bar and blade can make again machined surface not reach drawing specification requirement, thereby reduces spot-facing efficiency, otherwise can propose higher requirement to knife bar so again, causes the increase of knife bar cost of manufacture.For this reason, develop that a kind of working stability is reliable, efficiency is high, compact conformation, the Combined reaming cutter easily that changes the outfit is the effective way addressing this problem.
Utility model content
The purpose of this utility model is to provide that a kind of working stability is reliable, efficiency is high, compact conformation, and Combined reaming cutter easily changes the outfit.
The purpose of this utility model is to realize like this, comprise knife bar, cutterhead, blade, described cutterhead is axially fastened in knife bar or by clamping screw and is directly axially fastened in knife bar by clamping screw and gland, the end face of described cutterhead is provided with the only groove in axle center, and described blade is inlayed or bolt is fixed on groove.
The utility model adopts Combined cutter arbor structure, by cutterhead by clamping screw directly or be anchored on knife bar through gland, thereby knife bar or the cutterhead being convenient to damage are changed, also can simplify the structure of knife bar or cutterhead, be convenient to knife bar and cutterhead processing, can effectively reduce use cost and the production cost of knife bar and cutterhead; By the only blade groove in knife bar axle center is set on cutterhead, thus the torsional strength of increase knife bar, the service life that can improve dimension knife bar; Better torsional strength also helps whole Combined reaming cutter reduction because of uneven, the to be processed material of the chip surface vibration cutting causing really up to the mark, thereby improved crudy, and make process more reliable and more stable, reduce the probability of blade tipping, make operation process safer, also reduce number of changing knife, thereby improve working (machining) efficiency; By blade being inlayed or bolt is fixed on groove, be convenient to change and adjust blade, be conducive to the processing in batch of knife bar, cutterhead and blade, thereby reduce cutter use cost, reduced the replacing time of cutter, also improved operating efficiency.Combined reaming cutter working stability of the present utility model is reliable, efficiency is high, and compact conformation changes the outfit conveniently, can effectively reduce use cost.
Accompanying drawing explanation
Fig. 1 is one of the utility model structural representation;
Fig. 2 is the upward view of Fig. 1;
Fig. 3 is the stereogram of Fig. 1;
Fig. 4 is that the utility model blade is installed partial sectional view A;
Fig. 5 is that the utility model blade is installed partial sectional view B;
Fig. 6 is that the utility model blade is installed partial sectional view C;
Fig. 7 is the utility model ball bearing guide bushing structural representation;
Fig. 8 is the utility model needle bearing structural representation;
In figure: 1-knife bar, 11-cutter spindle, 2-cutterhead, 21-end face, 22-groove, 221-right angle face, 23-screw, 24-endoporus, 3-blade, 31-blade, 32-cutter hub, 4-clamping screw, 5-gland, 6-bolt, the trapezoidal briquetting of 7-, 8-key, 9-packing ring.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described, but must not to the utility model, be limited by any way, any change or the improvement based on the utility model training centre, done, all belong to protection domain of the present utility model.
As shown in accompanying drawing 1,2 or 3, the utility model comprises knife bar 1, cutterhead 2, blade 3, described cutterhead 2 is axially fastened in knife bar 1 or by clamping screw 4 and is directly axially fastened in knife bar 1 by clamping screw 4 and gland 5, the end face 21 of described cutterhead 2 is provided with the only groove 22 in axle center, and described blade 3 is inlayed or bolt 6 is fixed on groove 22.
The blade 31 of described blade 3 is vertical with knife bar 1 axis.
As shown in Figure 4, described groove 22 is the trapezoidal groove that end face 21 openings are greater than bottom surface, and described trapezoidal groove 22 bottoms are provided with screw 23, and described blade 3 cutter hubs 32 are joined merga pass bolt 6 with trapezoidal groove 22 and are connected and fixed on cutterhead 2 with screw 23.
As shown in Figure 5, described groove 22 is the trapezoidal groove that end face 21 openings are greater than bottom surface, described trapezoidal groove 22 bottoms are provided with screw 23, and described blade 3 coordinates with trapezoidal groove 22 inclined-planes by trapezoidal briquetting 7 and the bolt 6 of the briquetting 7 that wore long is connected and is anchored on cutterhead 2 with screw 23.
Described trapezoidal groove 22 is right-angled trapezium groove, and described right-angled trapezium groove right angle face 221 and blade 31 are subject to the vertical or near normal of force direction.
As shown in Figure 6, described groove 22 is parallelogram groove, cutter hub 32 one sides of described blade 3 coordinate with groove 22 inclined-planes, and corresponding another side coordinates with groove 22 another inclined-planes by trapezoidal briquetting 7 and the bolt 6 of the briquetting 7 that wore long is connected and is anchored on cutterhead 2 with screw 23.
Described cutterhead 2 endoporus 24 are with cutter spindle 11 interference fit or matched in clearance and be connected by key 8.
As shown in Figure 1, described gland 5 external diameters and preprocessing workpiece pilot hole matched in clearance, described gland 5 be heat treatment quenching and tempering to more than HRC50 and/or roughness Ra 1.6 with interior cylindrical sleeve.
As shown in FIG. 7 and 8, described gland 5 external diameters and preprocessing workpiece pilot hole matched in clearance, described gland 5 is oiliness bearing, needle bearing or ball bearing guide bushing.
As shown in Figure 8, described cutterhead 2 directly axially fastens when the knife bar 1 by clamping screw 4, is socketed with needle bearing or oiliness bearing with preprocessing workpiece pilot hole matched in clearance on the excircle of the cutter spindle 11 away from cutterhead 2.
On described cutterhead 2, be uniformly distributed with at least 2 blades 3 along the circumference.
Described knife bar 1 is conical structure, adapts with the main axle structure shape of lathe.
the utility model operation principle and the course of work:
The utility model adopts cutterhead and the knife bar combined type structure that is connected, cutterhead coordinates with its keyway by the key on cutter spindle realizes rotation, at cutterhead one end face, the only blade groove in knife bar axle center is set, blade is directly inlayed or is installed in groove by bolt, further by briquetting, coordinate blade and cutterhead are fastenedly connected with groove hypotenuse, finally make the blade of blade vertical with knife bar axis; In addition, on the elongated end excircle of knife bar, be also provided with the guiders such as smooth modified cylindrical sleeve or oiliness bearing, needle bearing, ball bearing guide bushing, the friction of guider and workpiece to be processed pilot hole is reduced, thereby reduce vibration and the wearing and tearing of Combined reaming cutter, be conducive to improve service life and machined surface quality.In use, the guider of Combined reaming cutter stretches into workpiece to be processed pilot hole, and blade cuts workpiece machined surface with cutterhead rotation.
Before work, cutter hub 32 parts of blade 3 are close to groove default on cutterhead 2 22 bottom surfaces and side, then between cutter hub 32 sides and groove 22 inclined-planes, insert trapezoidal briquetting 7, thereby bolt 6 is connected by briquetting 7 and compresses cutter hub 32 in cutterhead 2 with the screw 23 of groove 22 bottoms by briquetting 7 through holes, and make the blade 31 of blade 3 vertical with knife bar 1 axis.Cutterhead 2 is installed on the cutter spindle 11 of knife bar 1 by centre bore together with the blade 3 of installing on it, and the keyway on cutterhead 2 centre bores is matched with the flat key 8 on cutter spindle 11; Then the cutter spindle 11 excircles sockets of knife bar 1 through heat treatment quenching and tempering to more than HRC50 and roughness Ra 1.6 with interior cylinder gland 5, make cylinder gland 5 be pressed in cutterhead 2 end faces by the cutter spindle 11 end clamping screws 4 of knife bar 1, thereby also just make cutterhead 2 be connected with knife bar 1 axial restraint.During work, the cylinder gland 5 on knife bar 1 stretches into preprocessing workpiece pilot hole, and knife bar 1 connected equipment drives rotation, by flat key 8 with movable knife disc 2 and on blade 3 rotations, thereby the 3 pairs of workpiece of blade on cutterhead 2 are cut.
Combined reaming cutter working stability of the present utility model is reliable, efficiency is high, and compact conformation changes the outfit conveniently, can effectively reduce use cost.
Claims (10)
1. a Combined reaming cutter, comprise knife bar (1), cutterhead (2), blade (3), it is characterized in that described cutterhead (2) is axially fastened in knife bar (1) or by clamping screw (4) and directly axially fastened in knife bar (1) by clamping screw (4) and gland (5), the end face (21) of described cutterhead (2) is provided with the only groove in axle center (22), and described blade (3) is inlayed or bolt (6) is fixed on groove (22).
2. Combined reaming cutter according to claim 1, is characterized in that the blade (31) of described blade (3) is vertical with knife bar (1) axis.
3. Combined reaming cutter according to claim 1, it is characterized in that described groove (22) is the trapezoidal groove that end face (21) opening is greater than bottom surface, described trapezoidal groove (22) bottom is provided with screw (23), and the cutter hub (32) of described blade (3) is joined merga pass bolt (6) with trapezoidal groove (22) and is connected and fixed on cutterhead (2) with screw (23).
4. Combined reaming cutter according to claim 1, it is characterized in that described groove (22) is the trapezoidal groove that end face (21) opening is greater than bottom surface, described trapezoidal groove (22) bottom is provided with screw (23), and described blade (3) coordinates with trapezoidal groove (22) inclined-plane by trapezoidal briquetting (7) and the bolt (6) of the briquetting that wore long (7) is connected and is anchored on cutterhead (2) with screw (23).
5. according to the Combined reaming cutter described in claim 3 or 4, it is characterized in that described trapezoidal groove (22) is right-angled trapezium groove, described right-angled trapezium groove right angle face (221) and blade (31) are subject to the vertical or near normal of force direction.
6. Combined reaming cutter according to claim 1, it is characterized in that described groove (22) is parallelogram groove, cutter hub (32) one side of described blade (3) coordinates with groove (22) inclined-plane, and corresponding another side coordinates with another inclined-plane of groove (22) by trapezoidal briquetting (7) and the bolt (6) of the briquetting that wore long (7) is connected and is anchored on cutterhead (2) with screw (23).
7. Combined reaming cutter according to claim 1, is characterized in that described cutterhead (2) endoporus (24) with cutter spindle (11) interference fit or matched in clearance and is connected by key (8).
8. Combined reaming cutter according to claim 1, it is characterized in that described gland (5) external diameter and preprocessing workpiece pilot hole matched in clearance, described gland (5) be heat treatment quenching and tempering to more than HRC50 and/or roughness Ra 1.6 with interior cylindrical sleeve, or described gland (5) is oiliness bearing, needle bearing or ball bearing guide bushing.
9. Combined reaming cutter according to claim 1, it is characterized in that described cutterhead (2) directly axially fastens when knife bar (1) by clamping screw (4), is socketed with needle bearing or oiliness bearing with preprocessing workpiece pilot hole matched in clearance on the excircle of the cutter spindle away from cutterhead (2) (11).
10. according to the Combined reaming cutter described in claim 1,3,4 or 6, it is characterized in that being uniformly distributed with along the circumference on described cutterhead (2) at least 2 blades (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320495166.6U CN203448694U (en) | 2013-08-14 | 2013-08-14 | Combined countersinking cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320495166.6U CN203448694U (en) | 2013-08-14 | 2013-08-14 | Combined countersinking cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203448694U true CN203448694U (en) | 2014-02-26 |
Family
ID=50128598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320495166.6U Expired - Lifetime CN203448694U (en) | 2013-08-14 | 2013-08-14 | Combined countersinking cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203448694U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108724293A (en) * | 2018-06-12 | 2018-11-02 | 莱芜钢铁集团有限公司 | The detachable blade formula rotary head of head is shelled for steel rope belt |
| CN112024935A (en) * | 2020-06-24 | 2020-12-04 | 中国核工业第五建设有限公司 | Tool for processing countersunk hole, and device and method for processing countersunk hole |
| CN112475978A (en) * | 2020-12-11 | 2021-03-12 | 雄名航空科工（芜湖）股份有限公司 | Turret fluted disc and machining process thereof |
| CN114833374A (en) * | 2022-05-23 | 2022-08-02 | 江苏卡一阀门制造有限公司 | Counter boring device for valve manufacturing |
-
2013
- 2013-08-14 CN CN201320495166.6U patent/CN203448694U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108724293A (en) * | 2018-06-12 | 2018-11-02 | 莱芜钢铁集团有限公司 | The detachable blade formula rotary head of head is shelled for steel rope belt |
| CN112024935A (en) * | 2020-06-24 | 2020-12-04 | 中国核工业第五建设有限公司 | Tool for processing countersunk hole, and device and method for processing countersunk hole |
| CN112475978A (en) * | 2020-12-11 | 2021-03-12 | 雄名航空科工（芜湖）股份有限公司 | Turret fluted disc and machining process thereof |
| CN114833374A (en) * | 2022-05-23 | 2022-08-02 | 江苏卡一阀门制造有限公司 | Counter boring device for valve manufacturing |
| CN114833374B (en) * | 2022-05-23 | 2023-11-24 | 江苏卡一阀门制造有限公司 | Countersink device for valve manufacturing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140226 |