CN207076976U - Deep hole machining for numerically controlled lathe damps boring cutter bar - Google Patents
Deep hole machining for numerically controlled lathe damps boring cutter bar Download PDFInfo
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- CN207076976U CN207076976U CN201720940415.6U CN201720940415U CN207076976U CN 207076976 U CN207076976 U CN 207076976U CN 201720940415 U CN201720940415 U CN 201720940415U CN 207076976 U CN207076976 U CN 207076976U
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- bar
- stretch rod
- damping
- buffering circle
- cutter head
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Abstract
It the utility model is related to a kind of deep hole machining for numerically controlled lathe and damp boring cutter bar, including bar of operating, cutter head, stretch rod, preceding damping buffering circle, damp powder and rear damping buffering circle, described operator bar is hollow structure, described cutter head is connected to the head end of operator bar, described operator bar tail end is used to connect lathe, the spliced eye for stretch rod grafting is left on described cutter head, described stretch rod is in operator bar, the head end of described stretch rod is plugged on cutter head in spliced eye, the tail end of described stretch rod abuts with operator bar, described preceding damping buffering circle is located inside operator bar respectively with rear damping buffering circle, and preceding damping buffering circle wraps up stretch rod with rear damping buffering circle in radial direction, described damping powder is placed in the space between preceding damping buffering circle and rear damping buffering circle.Compared with prior art, the utility model has the advantages that simple in construction, service life is long, Multi-stage damping better function, practical.
Description
Technical field
A kind of boring cutter bar is the utility model is related to, boring cutter is damped more particularly, to a kind of deep hole machining for numerically controlled lathe
Bar.
Background technology
At present, in lathe in machining deep hole, how to ensure that processing efficiency and product quality are always two problems.Cause
It is deep hole for product, so the cutter and cutter bar length of bore hole is very long, is substantially reduced so as to the rigidity of cutter.For now universal
Using material of No. 45 steel heat treatments as knife bar, by the way of solid construction installs cutter head additional, the problem of being primarily present is cutter
Material rigidity is poor, and knife bar easily shakes and causes machined surface roughness poor, and size is unstable, the easy tipping of point of a knife, production effect
Rate is low.
The damping knife bar of existing special producer's CEMENTED CARBIDE PRODUCTION, because price is very expensive, dynamic then tens of thousands of members, economy
It is very poor.And damping knife bar, mostly using liquid such as injection mercurys, when knife bar, which damages, to ftracture, mercury leaks and environment can be caused
Greatly pollution.The shortcomings of also the knife bar customization cycle is long simultaneously.
Chinese patent CN102672217A discloses a kind of coating damping vibration absorbing cutter bar, on the matrix material of the knife bar
One layer of damping material layer is coated, laminated construction is formed with the matrix material of knife bar, increase knife bar damping, is damped using coating
Knife vibration of bar kinetic energy is converted into heat energy by material in-fighting, so as to the mesh for reaching vibration damping, improving processing efficiency, improving crudy
's.The coating damping vibration absorbing cutter bar, can adapt to processing conditions complicated and changeable, effectively reduces or suppresses cutting process knife
Vibration of bar, improve the stability of cutting process, improve machining accuracy and processing efficiency.But coating damping makes again
It is miscellaneous, and be easy to be lost.
Utility model content
The purpose of this utility model be exactly in order to provided the defects of overcoming above-mentioned prior art to exist it is a kind of it is simple in construction,
Service life length, Multi-stage damping better function, the practical deep hole machining for numerically controlled lathe damp boring cutter bar.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of deep hole machining for numerically controlled lathe damps boring cutter bar, including operator bar, cutter head, stretch rod, preceding damping are slow
Punching circle, damping powder and rear damping buffering circle, described operator bar are hollow structure, and described cutter head is connected to the head of operator bar
End, described operator bar tail end are used to connect lathe, and the spliced eye for stretch rod grafting is left on described cutter head, described
Stretch rod is in operator bar, and the head end of described stretch rod is plugged on cutter head in spliced eye, the tail end of described stretch rod
Abutted with operator bar, described preceding damping buffering circle is with rear damping buffering circle respectively inside operator bar, and preceding damping buffering
Circle wraps up stretch rod with rear damping buffering circle in radial direction, and described damping powder is placed in preceding damping buffering circle and rear damping buffering circle
Between space in.
The tail end of described stretch rod is disk, and tail end opens up round platform, described stretch rod and master in described operator bar
Abutted between the round platform of knife bar.
Rear damping washer is provided between described stretch rod and the round platform for bar of operating.
It is connected between described cutter head and operator bar by attachment bolt.
Preceding damping washer is provided between described cutter head and operator bar.
The damping adjusting nut on stretch rod is provided among damping powder.
Blade is connected with described cutter head.
Connected between described blade and cutter head by blade lock-screw.
Described preceding damping buffering circle and rear damping buffering circle are elastomer.
Described preceding damping washer uses quality of rubber materials with rear damping washer.
Described stretch rod uses center prestressing force stretch rod.
Described operator bar material selects the 40Cr medium carbon alloy steels of excellent performance and carries out quenched, carburizing and quenching, surface
Ion Plasma Nitriding Treatment lifting operator bar rigidity.
Bar of operating is arranged on tool rest, first fixed operator bar, and blade, which is tightened on cutter head, to be processed.In process
Damping washer carries out first time vibration damping before workpiece is directly delivered to the vibratory impulse of blade, and now 1/3 vibratory impulse power is preceding
The elastomer buffering of damping washer has passed to operator bar after reducing；Meanwhile 1/3 vibratory impulse power is passed to centre in addition
On stretch rod, stretch rod reduces the strong simultaneous resonance impact in front end, and now stretch rod will be vibrated by front and rear damping buffering circle
It is discharged into after impulsive force buffering in the damping powder among operator bar.Remaining 1/3 vibratory impulse passes through the attachment bolt on cutter head
Also pass on operator bar, vibratory impulse can be dispersed in the high specific gravity resistance of large area among operator bar by high intensity operator bar
Buddhist nun's powder fill area, vibratory impulse is discharged completely.Being additionally installed on the damping adjusting nut among stretch rod can be according to shaking
Damping powder density among dynamic intensity adjustment operator bar, the damping powder of centre is extruded it is tight, can effectively falling tone it is whole
The region damping ratio, avoid producing self-excited vibration, so as to enhance the damping powder energy-obsorbing and damping effect among operator bar.
The utility model thes improvement is that：
(1) preceding damping washer and rear damping washer are increased；
(2) add using center prestressing force stretch rod and front and rear damping buffering circle；
(3) added on stretch rod and put damping nut；
(4) special damping powder is inserted in operator bar inner chamber, and damping ratio is bigger, more environmentally friendly；
(5) bar material of operating selects the 40Cr medium carbon alloy steels of excellent performance and carries out quenched, carburizing and quenching, surface ion
Nitrogen treatment lifts knife bar rigidity.
Compared with prior art, the utility model has advantages below：
1st, service life is grown：Using quality material, and by being heat-treated, improve the service life of device.
2nd, material environment friendly is safe and reliable：Improve safety in utilization and reliability.
3rd, Multi-stage damping function, damping are good.
4th, practical use range is wide：It can process a diameter ofHole, hole depth maximum can be machined to
1200mm。
5th, cutter rigidity is lifted, and efficiency improves：Good economy performance.
6th, it is simple in construction, it is easy to make.
7th, damping material cost is cheap.
Brief description of the drawings
Fig. 1 is the utility model structure diagram
Label in figure：1st, operate bar, 2, attachment bolt, 3, cutter head, 4, blade, 5, blade lock-screw, 6, stretch rod, 7,
Preceding damping washer, 8, preceding damping buffering circle, 9, damping adjusting nut, 10, damping powder, 11, rear damping buffering circle, 12, rear resistance
Buddhist nun's packing ring.
Embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
A kind of deep hole machining for numerically controlled lathe damps boring cutter bar, as shown in figure 1, including operator bar 1, cutter head 3, stretching
Bar 6, preceding damping buffering circle 8, damping powder 10 and rear damping buffering circle 11, operator bar 1 is hollow structure, and cutter head 3 is connected to master
The head end of knife bar 1, operator bar 1 tail end are used to connect lathe, and the spliced eye for the grafting of stretch rod 6, stretch rod are left on cutter head 3
6 in operator bar 1, and the head end of stretch rod 6 is plugged on cutter head 3 in spliced eye, and the tail end of stretch rod 6 abuts with operator bar 1,
Preceding damping buffering circle 8 is with rear damping buffering circle 11 respectively inside operator bar 1, and preceding damping buffering circle 8 and rear damping buffering
Circle 11 wraps up stretch rod 6, the space that damping powder 10 is placed between preceding damping buffering circle 8 and rear damping buffering circle 11 in radial direction
It is interior.
The tail end of stretch rod 6 is disk, and tail end opens up round platform in bar 1 of operating, between stretch rod 6 and the round platform for bar 1 of operating
Abut.Rear damping washer 12 is provided between the round platform of stretch rod 6 and bar 1 of operating.By coupling spiral shell between cutter head 3 and operator bar 1
Bolt 2 is connected.Preceding damping washer 7 is provided between cutter head 3 and operator bar 1.It is provided among damping powder 10 installed in drawing
Damping adjusting nut 9 on boom 6.Blade 4 is connected with cutter head 3.Connected between blade 4 and cutter head 3 by blade lock-screw 5
Connect.Preceding damping buffering circle 8 and rear damping buffering circle 11 are elastomer.Preceding damping washer uses rubber material with rear damping washer
Matter.Stretch rod 6 uses center prestressing force stretch rod.Operator bar material is selected the 40Cr medium carbon alloy steels of excellent performance and adjusted
Matter, carburizing and quenching, surface ion nitrogen treatment lifting operator bar rigidity.
Bar of operating is arranged on tool rest, first fixed operator bar, and blade, which is tightened on cutter head, to be processed.In process
Damping washer carries out first time vibration damping before workpiece is directly delivered to the vibratory impulse of blade, and now 1/3 vibratory impulse power is preceding
The elastomer buffering of damping washer has passed to operator bar after reducing；Meanwhile 1/3 vibratory impulse power is passed to centre in addition
On stretch rod, stretch rod reduces the strong simultaneous resonance impact in front end, and now stretch rod will be vibrated by front and rear damping buffering circle
It is discharged into after impulsive force buffering in the damping powder among operator bar.Remaining 1/3 vibratory impulse passes through the attachment bolt on cutter head
Also pass on operator bar, vibratory impulse can be dispersed in the high specific gravity resistance of large area among operator bar by high intensity operator bar
Buddhist nun's powder fill area, vibratory impulse is discharged completely.Being additionally installed on the damping adjusting nut among stretch rod can be according to shaking
Damping powder density among dynamic intensity adjustment operator bar, the damping powder of centre is extruded it is tight, can effectively falling tone it is whole
The region damping ratio, avoid producing self-excited vibration, so as to enhance the damping powder energy-obsorbing and damping effect among operator bar.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using practicality
It is new.Person skilled in the art obviously can easily make various modifications to these embodiments, and illustrating herein
General Principle be applied in other embodiment without by performing creative labour.Therefore, the utility model is not limited to above-mentioned
Embodiment, those skilled in the art according to announcement of the present utility model, do not depart from improvement that the utility model category made and
Modification all should be within the scope of protection of the utility model.
Claims (8)
1. a kind of deep hole machining for numerically controlled lathe damps boring cutter bar, it is characterised in that including operator bar (1), cutter head (3),
Stretch rod (6), preceding damping buffering circle (8), damping powder (10) and rear damping buffering circle (11), during described operator bar (1) is
Hollow structure, described cutter head (3) are connected to the head end of operator bar (1), and described operator bar (1) tail end is used to connect lathe, institute
The spliced eye for stretch rod (6) grafting is left on the cutter head (3) stated, described stretch rod (6) is in operator bar (1), institute
The head end for the stretch rod (6) stated is plugged on cutter head (3) in spliced eye, and tail end and the operator bar (1) of described stretch rod (6) support
Connect, described preceding damping buffering circle (8) is internal positioned at operator bar (1) respectively with rear damping buffering circle (11), and preceding damping buffering
(8) are enclosed with rear damping buffering circle (11) in radial direction parcel stretch rod (6), damping buffering circle before described damping powder (10) is placed in
(8) in the space between rear damping buffering circle (11).
2. a kind of deep hole machining for numerically controlled lathe according to claim 1 damps boring cutter bar, it is characterised in that described
The tail end of stretch rod (6) be disk, described operator bar (1) interior tail end opens up round platform, described stretch rod (6) and operator bar
(1) abutted between round platform.
3. a kind of deep hole machining for numerically controlled lathe according to claim 2 damps boring cutter bar, it is characterised in that described
Stretch rod (6) and operator bar (1) round platform between be provided with rear damping washer (12).
4. a kind of deep hole machining for numerically controlled lathe according to claim 1 damps boring cutter bar, it is characterised in that described
Cutter head (3) and operator bar (1) between be connected by attachment bolt (2).
5. a kind of deep hole machining for numerically controlled lathe according to claim 4 damps boring cutter bar, it is characterised in that described
Cutter head (3) and operator bar (1) between be provided with preceding damping washer (7).
6. a kind of deep hole machining for numerically controlled lathe according to claim 1 damps boring cutter bar, it is characterised in that is hindering
The damping adjusting nut (9) on stretch rod (6) is provided among Buddhist nun's powder (10).
7. a kind of deep hole machining for numerically controlled lathe according to claim 1 damps boring cutter bar, it is characterised in that described
Cutter head (3) on be connected with blade (4).
8. a kind of deep hole machining for numerically controlled lathe according to claim 7 damps boring cutter bar, it is characterised in that described
Blade (4) and cutter head (3) between be connected by blade lock-screw (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720940415.6U CN207076976U (en) | 2017-07-31 | 2017-07-31 | Deep hole machining for numerically controlled lathe damps boring cutter bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720940415.6U CN207076976U (en) | 2017-07-31 | 2017-07-31 | Deep hole machining for numerically controlled lathe damps boring cutter bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207076976U true CN207076976U (en) | 2018-03-09 |
Family
ID=61424445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720940415.6U Active CN207076976U (en) | 2017-07-31 | 2017-07-31 | Deep hole machining for numerically controlled lathe damps boring cutter bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207076976U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108994324A (en) * | 2018-08-15 | 2018-12-14 | 东南大学 | A kind of damping boring bar and its working method with external bump leveller |
| CN109317706A (en) * | 2017-07-31 | 2019-02-12 | 田中金属加工（上海）有限公司 | A kind of deep hole machining damping boring cutter bar for numerically controlled lathe |
| CN110052649A (en) * | 2019-05-24 | 2019-07-26 | 任航萱 | A kind of adjustable plate drilling equipment with drill bit protection structure |
| WO2020149973A1 (en) * | 2019-01-15 | 2020-07-23 | Caterpillar Inc. | Damped boring bar |
| CN114260476A (en) * | 2021-11-29 | 2022-04-01 | 辽沈工业集团有限公司 | Bending vibration-damping cutter bar |
-
2017
- 2017-07-31 CN CN201720940415.6U patent/CN207076976U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109317706A (en) * | 2017-07-31 | 2019-02-12 | 田中金属加工（上海）有限公司 | A kind of deep hole machining damping boring cutter bar for numerically controlled lathe |
| CN108994324A (en) * | 2018-08-15 | 2018-12-14 | 东南大学 | A kind of damping boring bar and its working method with external bump leveller |
| WO2020149973A1 (en) * | 2019-01-15 | 2020-07-23 | Caterpillar Inc. | Damped boring bar |
| US10857599B2 (en) | 2019-01-15 | 2020-12-08 | Caterpiller Inc. | Damped boring bar |
| CN110052649A (en) * | 2019-05-24 | 2019-07-26 | 任航萱 | A kind of adjustable plate drilling equipment with drill bit protection structure |
| CN114260476A (en) * | 2021-11-29 | 2022-04-01 | 辽沈工业集团有限公司 | Bending vibration-damping cutter bar |
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