CN209918910U - Adjustable vibration-damping grooving turning tool - Google Patents
Adjustable vibration-damping grooving turning tool Download PDFInfo
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- CN209918910U CN209918910U CN201920241752.5U CN201920241752U CN209918910U CN 209918910 U CN209918910 U CN 209918910U CN 201920241752 U CN201920241752 U CN 201920241752U CN 209918910 U CN209918910 U CN 209918910U
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Abstract
The utility model discloses a damping lathe tool of turning groove with adjustable belongs to a damping turning cutter, including tool bit and cutter arbor, the cutter arbor bottom is provided with the axis and extends the blind hole that the direction is the same with the cutter arbor, end at the blind hole is provided with at least one damping dog, the outside of damping dog is provided with the movable dog that removes about in the blind hole, the outside of activity dog is provided with the damping dog, the outside of damping dog is provided with the sealed plug screw that closes at the blind hole opening part, the damping dog, be clearance fit between activity dog and the blind hole, be interference fit between damping dog and the blind hole, distance between activity dog and the damping dog is not more than 2 millimeters. The utility model discloses adjust the damping of cutter arbor, adapt to the vibration condition of specific difference, absorb, reduce or offset the vibration that transmits for the lathe tool, change the inherent vibration frequency of cutter arbor, avoid producing resonance, reduce machining error, noise abatement and cutter wearing and tearing.
Description
Technical Field
The utility model relates to a machining equipment technique belongs to a damping turning cutter.
Background
When a grooving turning tool is used for machining a groove, the lathe inevitably has systematic vibration, and after the vibration is transmitted to the grooving turning tool, the resonance among the lathe, a workpiece and the grooving turning tool can be caused, strong noise can be generated during machining, the tool abrasion can be aggravated seriously, the machining precision is reduced, the machining size of the workpiece is influenced, and even the production safety problem is caused. When the grooving lathe tool in the existing production workshop vibrates during processing, the general solution is to adjust the three processing factors, namely cutting speed, back-cut tool amount and feed amount, and eliminate the internal vibration of the system through the linkage adjustment of the three processing factors. However, this solution is not possible to eliminate the vibrations at all, since the machine tool is manufactured with manufacturing errors in its moving parts, such as guides, bearings, etc., which errors include run-out, coaxiality, etc., amplify the vibrations. The related technology of the existing vibration reduction turning tool only can reduce vibration during processing, can not adjust vibration reduction performance according to specific conditions, and can not fundamentally eliminate system vibration. The vibration reduction cutter bar sold in the market is formed by arranging a metal material in the cutter bar and sealing the cutter bar, the material cannot be replaced, the vibration reduction capability of the material is simply utilized to alleviate system vibration, the vibration reduction performance of the vibration reduction cutter bar is solidified but cannot be adjusted, and the vibration reduction mode cannot adapt to a specific turning environment.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a damping lathe tool with adjustable is provided, adjusts the damping of cutter arbor, adapts to the vibration condition of specific different work pieces, lathe, absorbs, reduces or offsets the vibration that lathe and work piece transmission given the lathe tool, changes the inherent vibration frequency of cutter arbor, avoids lathe tool and lathe and work piece to produce resonance, reduces machining error, noise abatement and cutter wearing and tearing.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
the utility model provides a damping turning cutter, including tool bit and cutter arbor, the cutter arbor bottom is provided with the blind hole that axis and cutter arbor extend the direction the same, end at the blind hole is provided with at least one damping dog, the outside of damping dog is provided with the movable dog that removes about in the blind hole, the outside of activity dog is provided with the damping dog, the outside of damping dog is provided with closes the sealed plug at the blind hole opening part, the damping dog, be clearance fit between activity dog and the blind hole, be interference fit between damping dog and the blind hole, distance between activity dog and the damping dog is not more than 2 millimeters.
The utility model discloses technical scheme's further improvement lies in: the damping stop block is of a hollow structure, a solid structure or a mixture of the hollow structure and the solid structure, and when the damping stop block is of the solid structure, the damping stop block is made of one of a steel bar and plastic; when the vibration reduction stop block is of a hollow structure, the internal material of the vibration reduction stop block is one or more of silicone oil, wood dust and plastic.
The utility model discloses technical scheme's further improvement lies in: when the damping dog has a plurality ofly, the damping dog all is solid construction, perhaps the damping dog all is hollow structure, perhaps the damping dog is the mixture of solid construction and hollow structure.
The utility model discloses technical scheme's further improvement lies in: the damping stop block is made of one or more of rubber, springs, cork and felt.
The utility model discloses technical scheme's further improvement lies in: the cutter bar and the cutter head are of a split structure, and the cutter bar and the cutter head are connected in a welding mode or a handle and a connecting mode.
The utility model discloses technical scheme's further improvement lies in: the diameter of the blind hole is 6 mm, and the cutter bar, the blind hole, the vibration reduction stop block, the movable stop block and the damping stop block) are coaxially arranged.
The utility model discloses technical scheme's further improvement lies in: the material of the movable stop is spring steel 65 Mn.
The utility model discloses technical scheme's further improvement lies in: the length of the blind hole is not more than half of the length of the cutter bar.
The utility model discloses technical scheme's further improvement lies in: there is no gap between the sealing plug and the damping block.
Due to the adoption of the technical scheme, the utility model discloses the technological progress who gains is:
the damping of the cutter bar is adjusted by adjusting the filling material in the cutter bar, the damping device is suitable for vibration conditions of different specific workpieces and machine tools, the vibration transmitted to the grooving turning tool by the machine tool and the workpiece is absorbed, reduced or offset, the inherent vibration frequency of the cutter bar is changed by the movable stop block in the cutter bar, the grooving turning tool is prevented from resonating with the machine tool and the workpiece, the machining error is reduced, and the noise and the tool abrasion are reduced.
The vibration of lathe and workpiece is transferred to the cutter bar, and then a certain amount of regular and stable vibration is caused, when the vibration is transferred from the front part of the lathe tool to the cutter bar at the rear end, the vibration-damping stop block consumes the energy of the vibration, so that the vibration is quickly attenuated, and the generation of self-excited vibration is avoided. The vibration reduction is first reduced by the vibration reduction stop, and the vibration amplitude can be further reduced by the damping stop as the second reduction of the vibration.
The damping dog is located the end of blind hole, and the damping dog is nearest with the vibration distance that tool bit department produced, has improved the ability that the damping dog absorbed tool bit department vibration. The damping check block, the movable check block and the blind hole are in clearance fit, so that the damping check block can move left and right in the blind hole, the obvious change of the natural vibration frequency of the grooving turning tool is realized, and the obvious resonance phenomenon of the grooving turning tool, a workpiece and a lathe is avoided. The distance between the movable stop block and the vibration reduction stop block is not more than 2 millimeters, so that the moving range of the movable vibration reduction stop block is limited, and the instability of the cutter bar caused by extra vibration is avoided. The damping stop block is made of one or more of rubber, springs, cork and felt, is of a hollow structure, a solid structure or a mixture of the hollow structure and the solid structure, provides several substances with high internal resistance and elastic absorption power, can effectively absorb vibration, provides attribute selection of various damping materials, adapts to different vibration conditions, and improves flexibility of configuration of the damping stop block. The damping stop blocks can be arranged in a plurality of numbers, and the possibility of properties of various damping materials can be increased according to different sequencing of the damping stop blocks.
The position of the damping stop block is determined by interference fit between the damping stop block and the blind hole, the damping stop block is prevented from moving, a movable part is limited in the movable stop block and the vibration reduction stop block, and the basic vibration reduction capability is ensured. The damping stop block is made of one or more of steel bars, silicone oil, sawdust and plastics, so that several materials with high hardness and low elasticity are provided, the property selection of various damping materials is provided, different vibration conditions are adapted, and the flexibility of the damping stop block is improved.
The material of activity dog is spring steel 65Mn, and the hardness of activity dog is greater than damping dog and damping dog, and the elastic absorption capacity of activity dog is less than activity dog and damping dog, and the activity dog is opened and becomes the part that removes more easily by the bullet, the different attribute of three, and the three has changed whole vibration nature.
The arrangement of the sealing plug guarantees replaceability of the filler in the grooving lathe tool, the grooving lathe tool is simple and feasible, the whole grooving lathe tool does not need to be replaced, the vibration characteristic of the grooving lathe tool can be changed by replacing the filler in the blind hole, the sealing plug guarantees sealing performance, and overflow of the filler in the blind hole is prevented. There is not the gap between sealed plug and the damping dog, does not have other fillers between the two, has simplified the structure, and the damping dog is located sealed plug right side, and the damping dog has absorbed most vibrations that come from the tool bit, has reduced the vibration and has aroused that sealed plug screw thread is not hard up closed.
The cutter arbor and the tool bit are of a split structure, and the cutter arbor and the tool bit are connected in a welding mode or a handle and a connecting mode, so that the installation of various tool bits is adapted. The length of blind hole is no longer than half of cutter arbor length, and this dodges interchangeable tool bit, and the length of blind hole is not long, has prevented that the weight loss of cutter arbor is too much, has avoided the focus of grooving lathe tool not easily to control, need not to consolidate anchor clamps in order to control the focus of grooving lathe tool.
Drawings
FIG. 1 is a schematic view of the partial cut-away structure of the present invention;
the tool comprises a tool bit 1, a tool bit 2, a vibration reduction stop dog 3, a movable stop dog 4, a damping stop dog 5, a sealing plug 6 and a tool bar.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
as shown in fig. 1, an adjustable vibration damping grooving tool comprises a tool bit 1 and a tool bar 6. The cutter bar 6 is provided with a blind hole, the tail end of the blind hole is provided with a vibration damping check block 2, the outer side of the vibration damping check block 2 is provided with a movable check block 3, the outer side of the movable check block 3 is provided with a damping check block 4, and the outer side of the damping check block 4 is provided with a sealing plug 5. The opening of the blind hole is arranged at the bottom of the cutter rod 6, and the axis of the blind hole is the same as the extending direction of the cutter rod 6. Damping dog 2 and activity dog 3 and the blind hole between be clearance fit, and activity dog 3 can move about in the little within range of blind hole, and damping dog 2 is owing to possess certain elasticity, and its shape has contraction and extension, and damping dog 2 space volume in the blind hole can possess certain change. The distance between the damping stop 2 and the movable stop 3 will vary, but the maximum distance will not exceed 2 mm. The damping stop block 4 and the blind hole are in interference fit, and the relative position of the damping stop block and the blind hole is unchanged. The sealing plug 5 is positioned at the bottom of the cutter bar 6 and prevents the vibration reduction stop block 2, the movable stop block 3 and the damping stop block 4 from falling from the blind hole. The sealing plug 5 needs to be periodically checked for tightness.
The blind hole is the hole of isodiametric, and the blind hole diameter is 6 millimeters, and the length of blind hole is no longer than the half of cutter arbor 6 length, and blind hole, damping dog 2, activity dog 3, damping dog 4 coaxial setting.
The material of damping dog 4 is one or several kinds in rubber, spring, cork, the felt, the utility model discloses select the spring material, the damping dog is removable for the elimination of this vibration is controllable. There is no gap between the sealing plug 5 and the damping block 4, and the two are in close contact. The damping stop block 4 reduces the vibration transmitted by the vibration reduction stop block 2, and avoids the vibration from being transmitted to the lathe tool rest in the next link. The utility model discloses well damping dog 4's material is the spring material.
The damping stop block 2 can be provided with one or more damping stop blocks, the damping stop block 2 is made of one or more of steel bars, silicon oil, wood chips and plastics, and the damping stop block 2 is of a hollow structure, a solid structure or a mixture of the hollow structure and the solid structure. When the damping stop block 2 is of a solid structure, the damping stop block 2 is made of one or two of a steel bar and plastic; when the vibration reduction stop block 2 is of a hollow structure, the vibration reduction stop block 2 comprises an internal filling material and a shell, the shell is a box body made of metal, and the internal filling material of the vibration reduction stop block 2 is one or more of silicone oil, sawdust and plastic; when selecting a plurality of damping dog 2 of usefulness, including hollow structure's damping dog 2 and solid construction's damping dog 2, arrange the order with hollow structure's damping dog 2 and solid construction's damping dog 2, place side by side, make hierarchical whole damping dog 2. Alternatively, the vibration damping stoppers 2 of the hollow structure and the vibration damping stoppers 2 of the solid structure may be bonded to each other to form a single body. The damping effect when 2 materials of damping dog is by low to high stick, silicon oil, saw-dust, plastics in proper order, and concrete damping effect is decided according to material consumption factor size, can select damping dog 2's material according to the material, turning parameter, the vibration condition etc. of processing spare part, the utility model discloses select the stick. When the damping system is used, the outer surface of the steel bar is smeared with engine oil and then is plugged into the blind hole, and the engine oil is used as additional damping to participate in the whole damping system. The selection of the damping block 4 is determined according to the actual machining conditions, and the blind selection of the high damping block is not economical, so that the vibration condition is judged according to the actual machining conditions, such as noise, vibration and the like, and then the selection of the damping block 4 is performed.
The material of the movable stopper 3 is spring steel 65Mn after heat treatment. The grooving turning tool is integrated, the tool bar 6 and the tool bit 1 can be set to be of a split structure, and the tool bar 6 and the tool bit 1 are connected in a welding mode or in a handle-and-connection mode. The material of the cutter bar 6 is No. 45 steel hardened and tempered, and the hardness is 28-32 HRc.
The utility model discloses the material object has been manufactured to try to process production, it is obvious to improve the vibration effect.
Claims (9)
1. The utility model provides a damping lathe tool of turning groove with adjustable, includes tool bit (1) and cutter arbor (6), its characterized in that: the blind hole with the axis in the same direction as the extension direction of the cutter bar (6) is formed in the bottom of the cutter bar (6), at least one damping check block (2) is arranged at the tail end of the blind hole, a movable check block (3) moving left and right in the blind hole is arranged on the outer side of the damping check block (2), a damping check block (4) is arranged on the outer side of the movable check block (3), a sealing plug (5) closing to the opening of the blind hole is arranged on the outer side of the damping check block (4), the damping check block (2), the movable check block (3) and the blind hole are in clearance fit, the damping check block (4) and the blind hole are in interference fit, and the distance between the movable check block (.
2. The adjustable vibration damping grooving turning tool of claim 1, wherein: the damping stop block (2) is of a hollow structure, a solid structure or a mixture of the hollow structure and the solid structure, and when the damping stop block (2) is of the solid structure, the damping stop block (2) is made of one of a steel bar and plastic; when the vibration reduction stop block (2) is of a hollow structure, the internal material of the vibration reduction stop block (2) is one or more of silicone oil, wood dust and plastic.
3. The adjustable vibration damping grooving turning tool of claim 2, wherein: when the damping stop blocks (2) are multiple, the damping stop blocks (2) are all solid structures, or the damping stop blocks (2) are all hollow structures, or the damping stop blocks (2) are a mixture of the solid structures and the hollow structures.
4. The adjustable vibration damping grooving turning tool of claim 1, wherein: the damping stop block (4) is made of one or more of rubber, springs, cork and felt.
5. The adjustable vibration damping grooving turning tool of claim 1, wherein: the cutter bar (6) and the cutter head (1) are of a split structure, and the cutter bar (6) and the cutter head (1) are connected in a welding mode or a handle and a connecting mode.
6. The adjustable vibration damping grooving turning tool of claim 1, wherein: the diameter of the blind hole is 6 mm, and the cutter bar (6), the blind hole, the vibration reduction stop block (2), the movable stop block (3) and the damping stop block (4) are coaxially arranged.
7. The adjustable vibration damping grooving turning tool of claim 1, wherein: the movable stopper (3) is made of spring steel 65 Mn.
8. The adjustable vibration damping grooving turning tool of claim 1, wherein: the length of the blind hole is not more than half of the length of the cutter bar (6).
9. The adjustable vibration damping grooving turning tool of claim 1, wherein: no gap is reserved between the sealing plug (5) and the damping stop block (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920241752.5U CN209918910U (en) | 2019-02-26 | 2019-02-26 | Adjustable vibration-damping grooving turning tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920241752.5U CN209918910U (en) | 2019-02-26 | 2019-02-26 | Adjustable vibration-damping grooving turning tool |
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| Publication Number | Publication Date |
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| CN209918910U true CN209918910U (en) | 2020-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920241752.5U Active CN209918910U (en) | 2019-02-26 | 2019-02-26 | Adjustable vibration-damping grooving turning tool |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112643059A (en) * | 2020-11-27 | 2021-04-13 | 哈尔滨理工大学 | Design method of vibration reduction cutter for turning large-pitch threads |
| CN113182544A (en) * | 2021-04-26 | 2021-07-30 | 哈尔滨理工大学 | Vibration reduction cutter bar for turning large-pitch threads |
| CN114083004A (en) * | 2021-11-30 | 2022-02-25 | 陈素丽 | Lathe tool damping device |
-
2019
- 2019-02-26 CN CN201920241752.5U patent/CN209918910U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112643059A (en) * | 2020-11-27 | 2021-04-13 | 哈尔滨理工大学 | Design method of vibration reduction cutter for turning large-pitch threads |
| CN112643059B (en) * | 2020-11-27 | 2024-01-26 | 哈尔滨理工大学 | Design method of turning large-pitch thread vibration reduction tool |
| CN113182544A (en) * | 2021-04-26 | 2021-07-30 | 哈尔滨理工大学 | Vibration reduction cutter bar for turning large-pitch threads |
| CN114083004A (en) * | 2021-11-30 | 2022-02-25 | 陈素丽 | Lathe tool damping device |
| CN114083004B (en) * | 2021-11-30 | 2023-11-03 | 山西晋煜兴精密制造有限公司 | Lathe tool damping device |
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