CN212946774U - Damping shock absorber - Google Patents
Damping shock absorber Download PDFInfo
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- CN212946774U CN212946774U CN202021061941.3U CN202021061941U CN212946774U CN 212946774 U CN212946774 U CN 212946774U CN 202021061941 U CN202021061941 U CN 202021061941U CN 212946774 U CN212946774 U CN 212946774U
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- cooling pipe
- vibration reduction
- reduction block
- elastic body
- vibration
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Abstract
The utility model relates to a damping vibration absorber, which comprises a supporting base, a cooling pipe, a vibration absorbing block and an elastic body; the rear end of the cooling pipe is fixedly arranged on the supporting base, and the front end of the cooling pipe is suitable for being fixedly connected with a cutter head; the cooling pipe can convey cooling liquid to the cutter head; the vibration reduction block is a rigid body, and the elastic body can generate elastic deformation; the vibration reduction block is provided with a through hole along the axial direction and is sleeved outside the cooling pipe; the two elastic bodies are respectively arranged between the tool bit and the vibration reduction block in a sealing manner, and between the support base and the vibration reduction block; the inner diameter of the through hole is larger than the outer diameter of the cooling pipe, the cooling pipe penetrates through the through hole to enable a damping gap to be formed between the vibration reduction block and the cooling pipe, and damping oil is filled in the damping gap. The tool with the long tool shank has the advantages that the tool with the long tool shank can reduce vibration during working, high-efficiency and stable machining is realized, and the requirements on the precision and the roughness of product machining are met.
Description
Technical Field
The utility model relates to a cutting process technical field, concretely relates to damping shock absorber.
Background
Due to the special functions of deep hole processing parts, the deep hole processing parts often become the key for determining the product quality and benefit, and the deep hole processing has the inherent disadvantages of poor rigidity system, difficult cooling and obvious vibration due to the large length-diameter ratio and the uniqueness of multi-interference constraint. In addition, the rotation and feeding of the tool in the deep hole machining are accompanied by the dynamic load coupling effect of the high-pressure cooling liquid, so that the bending and torsional vibration in the deep hole machining is frequent, and the abrasion of the deep hole machining tool is accelerated. These conditions require a long overhang of the boring tool. Under the condition, the common cutter bar and the common cutter have low rigidity and strong cutting vibration, so that the requirements on machining precision and roughness cannot be met, and even the metal cutting material cannot be removed. Although the vibration can be reduced to some extent by increasing the mass of the tool holder, only some problems can be solved.
Therefore, it is an urgent need for those skilled in the art to improve the existing cutting tools to overcome the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a to long handle of a knife cutter, can reduce the vibration of its during operation, realize high-efficient, stable processing to satisfy the precision of product processing and the damping shock absorber that the roughness required.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a damping vibration absorber comprises a supporting base, a cooling pipe, a vibration absorbing block and an elastic body;
the rear end of the cooling pipe is fixedly arranged on the supporting base, and the front end of the cooling pipe is suitable for being fixedly connected with a cutter head; the cooling pipe can convey cooling liquid to the cutter head;
the vibration reduction block is a rigid body, and the elastic body can generate elastic deformation; the vibration reduction block is provided with a through hole along the axial direction and is sleeved outside the cooling pipe; the two elastic bodies are respectively arranged between the tool bit and the vibration reduction block in a sealing manner, and between the support base and the vibration reduction block; the inner diameter of the through hole is larger than the outer diameter of the cooling pipe, the cooling pipe penetrates through the through hole to enable a damping gap to be formed between the vibration reduction block and the cooling pipe, and damping oil is filled in the damping gap.
Preferably, the supporting base and the cooling pipe are integrally formed, and the cooling pipe is connected to the cutter head in a threaded mode; the supporting base and the cooling pipe are screwed on the cutter head, and the vibration reduction block and the elastic body are tightly pressed and fixed between the cutter head and the supporting base. The structure has the advantages of convenience in installation, firmness in fixation and reliability in sealing.
As an improvement, the vibration reduction block is provided with an oil hole penetrating to the through hole along the radial direction. The oil hole is formed to facilitate the injection and discharge of damping oil, thereby facilitating the early assembly and later maintenance of the product.
As an improvement, the vibration damping block comprises a straight line section located at the front end and an inclined section located at the rear end, the straight line section is cylindrical, the inclined section is in a circular truncated cone shape with the diameter gradually reduced from front to back, and the straight line section and the inclined section are connected smoothly. The structural design enables the gravity center of the vibration reduction block to move forwards, and a better vibration reduction effect is achieved.
Preferably, the elastic body is an O-shaped ring structure made of rubber, the tool bit extends backwards to form a front boss, the support base extends forwards to form a rear boss, the elastic bodies at two ends are respectively sleeved on the front boss and the rear boss, and the inner side of each elastic body is tightly attached to the outer walls of the front boss and the rear boss; edges extend out of two ends of the vibration reduction block respectively to two sides, movable gaps are formed among the edges, the tool bit and the support base, and the outer side of the elastic body is tightly attached to the inner wall of the edges; the two sides of the elastic body at the front end are respectively clung to the tool bit and the vibration reduction block, and the two sides of the elastic body at the rear end are respectively clung to the support base and the vibration reduction block.
The rubber material is an elastic material with excellent performance and has the spring action; in addition, rubber has a damping effect and is suitable as a material for producing an elastic body. And the elastic body can be used as a sealing ring and is matched with the front-end tool bit and the rear-end support base to apply axial pressing force to the elastic body and the vibration damping block, so that the joint is sealed, and damping oil between the vibration damping block and the cooling pipe is prevented from leaking.
Compared with the prior art, the utility model has the advantages of: the cutter head can be subjected to random and alternating external load due to the action of cutting force, so that the cutter head vibrates, and the lower the static rigidity of the cutter head is, the larger the amplitude is, and the more unstable the cutting is; when the frequency of the random external load is close to the natural frequency of the cutter head, resonance is generated, vibration is severe, and normal and stable cutting of the cutter head is seriously affected. Therefore, the damping vibration absorber is designed to be used as the cutter bar or become a part of the cutter bar. The vibration reduction block and the elastomers at the two ends (simultaneously have the functions of damping and springs), and in addition, damping oil is injected between the vibration reduction block and the cooling pipe to form a passive vibration reduction system, so that the vibration of the front end and the middle section of the cutter bar is transmitted to the vibration reduction system and then fed back to a group of control force to control the vibration of the cutter head, and the aim of vibration reduction is fulfilled.
It is worth mentioning that in the damping vibration absorber, because the vibration damping block combining the straight excircle and the taper supported by the two ends, the vibration mode of the vibration damping block is mainly the first-order translation and the second-order swing in the length direction, and the vibration damping block is matched with the first-order and the second-order vibration modes of the cantilever beam type cutter bar body, the structure not only ensures the quality of the vibration damping block, but also can adjust the gravity center position of the vibration damping block by adjusting the taper, and can be combined with the adjustment of the rigidity of the elastic bodies at the two ends and the damping oil phase, so that the first-order and the second-order vibration mode frequency and the vibration of the cutter bar can be better fitted, and the vibration of.
To sum up, the damping shock absorber of this scheme can high-efficiently realize the cutter arbor length and the cutter arbor diameter stable cutting when bigger, has slowed down the vibration that different operating mode in-process produced, has the advantage that stability is high, the precision is high. The damping vibration absorber can be applied to the fields of lathe used as a lathe cutter bar, a milling cutter bar in a rotary cutter, a boring cutter bar in the rotary cutter and the like, and has the advantage of wide application.
Drawings
Fig. 1 is a schematic perspective view of a preferred embodiment of the present invention;
fig. 2 is a half sectional view of a preferred embodiment according to the present invention;
fig. 3 is an exploded view of a preferred embodiment according to the present invention.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.
In the description of the present invention, it should be noted that, for the orientation words, if there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and only for the convenience of describing the present invention and simplifying the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and not be construed as limiting the specific scope of the present invention.
As shown in fig. 1 to 3, a preferred embodiment of the present invention includes a support base 1, a cooling pipe 2, a vibration damping block 3, and an elastic body 4; the concrete structure is as follows:
the rear end of the cooling pipe 2 is fixedly arranged on the supporting base 1, and the front end of the cooling pipe 2 is suitable for fixedly connecting the cutter head 100; the cooling tube 2 may deliver cooling fluid to the tool bit 100.
The vibration damping block 3 is a rigid body, and the elastic body 4 can generate elastic deformation; the vibration reduction block 3 is provided with a through hole 30 along the axial direction, and the vibration reduction block 3 is sleeved outside the cooling pipe 2; the two elastic bodies 4 are respectively arranged between the tool bit 100 and the vibration damping block 3 in a sealing manner, and between the support base 1 and the vibration damping block 3; the inner diameter of the through hole 30 is larger than the outer diameter of the cooling pipe 2, the cooling pipe 2 penetrates through the through hole 30 to form a damping gap a between the vibration damping block 3 and the cooling pipe 2, and damping oil is filled in the damping gap a.
In this embodiment, the support base 1 and the cooling pipe 2 are integrally formed, and the cooling pipe 2 is screwed to the cutter head 100; the supporting base 1 and the cooling pipe 2 are screwed on the cutter head, and the vibration damping block 3 and the elastic body 4 are tightly pressed and fixed between the cutter head 100 and the supporting base 1.
In order to facilitate the earlier assembly and later maintenance of the product, the vibration damping block 3 is provided with an oil hole 31 which penetrates through the through hole along the radial direction.
In addition, the damper block 3 includes a straight line section 32 at the front end and an inclined section 33 at the rear end, the straight line section 32 is cylindrical, the inclined section 33 is in the shape of a circular truncated cone with a diameter gradually decreasing from front to rear, and the straight line section 32 and the inclined section 33 are smoothly connected. The structural design enables the gravity center of the vibration reduction block to move forwards, and a better vibration reduction effect is achieved.
In this embodiment, the elastic body 4 is an O-ring structure made of rubber, the tool bit 100 extends backwards to form the front boss 101, the support base 1 extends forwards to form the rear boss 11, the elastic bodies 4 at two ends are respectively sleeved on the front boss 101 and the rear boss 11, and the inner side of each elastic body 4 is tightly attached to the outer walls of the front boss 101 and the rear boss 11; edges 34 extend from two ends of the vibration reduction block 3 to two sides respectively, and a movable gap b is formed between the edge 34 and the tool bit 100 and between the edge 34 and the support base 1, and the arrangement of the movable gap b can avoid collision between the vibration reduction block and the tool bit 100 and between the vibration reduction block and the support base 1 when the elastic body 4 is deformed; the outer side of the elastic body 4 is tightly attached to the inner wall of the edge 34; two sides of the elastic body 4 positioned at the front end are respectively clung to the tool bit 100 and the damping block 3, and two sides of the elastic body 4 positioned at the rear end are respectively clung to the supporting base 1 and the damping block 3.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A damped shock absorber characterized by: comprises a supporting base, a cooling pipe, a vibration damping block and an elastic body;
the rear end of the cooling pipe is fixedly arranged on the supporting base, and the front end of the cooling pipe is suitable for being fixedly connected with a cutter head; the cooling pipe can convey cooling liquid to the cutter head;
the vibration reduction block is a rigid body, and the elastic body can generate elastic deformation; the vibration reduction block is provided with a through hole along the axial direction and is sleeved outside the cooling pipe; the two elastic bodies are respectively arranged between the tool bit and the vibration reduction block in a sealing manner, and between the support base and the vibration reduction block; the inner diameter of the through hole is larger than the outer diameter of the cooling pipe, the cooling pipe penetrates through the through hole to enable a damping gap to be formed between the vibration reduction block and the cooling pipe, and damping oil is filled in the damping gap.
2. A damped shock absorber according to claim 1 wherein: the supporting base and the cooling pipe are integrally formed, and the cooling pipe is connected to the cutter head in a threaded mode; the supporting base and the cooling pipe are screwed on the cutter head, and the vibration reduction block and the elastic body are tightly pressed and fixed between the cutter head and the supporting base.
3. A damped shock absorber according to claim 1 wherein: and the vibration reduction block is radially provided with an oil hole penetrating to the through hole.
4. A damped shock absorber according to claim 1 wherein: the damping block comprises a straight line section and an inclined section, the straight line section is located at the front end, the inclined section is located at the rear end, the inclined section is in a circular truncated cone shape, the diameter of the circular truncated cone shape is gradually reduced from front to back, and the straight line section is smoothly connected with the inclined section.
5. A damped shock absorber according to claim 1 wherein: the elastic body is of an O-shaped ring structure made of rubber, the tool bit extends backwards to form a front boss, the support base extends forwards to form a rear boss, the elastic bodies at two ends are respectively sleeved on the front boss and the rear boss, and the inner side of the elastic body is tightly attached to the outer walls of the front boss and the rear boss; edges extend out of two ends of the vibration reduction block respectively to two sides, movable gaps are formed among the edges, the tool bit and the support base, and the outer side of the elastic body is tightly attached to the inner wall of the edges; the two sides of the elastic body at the front end are respectively clung to the tool bit and the vibration reduction block, and the two sides of the elastic body at the rear end are respectively clung to the support base and the vibration reduction block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021061941.3U CN212946774U (en) | 2020-06-10 | 2020-06-10 | Damping shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021061941.3U CN212946774U (en) | 2020-06-10 | 2020-06-10 | Damping shock absorber |
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| Publication Number | Publication Date |
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| CN212946774U true CN212946774U (en) | 2021-04-13 |
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| CN202021061941.3U Active CN212946774U (en) | 2020-06-10 | 2020-06-10 | Damping shock absorber |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113857511A (en) * | 2021-11-05 | 2021-12-31 | 株洲钻石切削刀具股份有限公司 | Tunable damping vibration attenuation cutter bar |
| CN114101801A (en) * | 2021-12-28 | 2022-03-01 | 松德刀具（长兴）科技有限公司 | Damping vibration reduction cutter |
-
2020
- 2020-06-10 CN CN202021061941.3U patent/CN212946774U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113857511A (en) * | 2021-11-05 | 2021-12-31 | 株洲钻石切削刀具股份有限公司 | Tunable damping vibration attenuation cutter bar |
| CN114101801A (en) * | 2021-12-28 | 2022-03-01 | 松德刀具（长兴）科技有限公司 | Damping vibration reduction cutter |
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