CN212977624U

CN212977624U - Damping device for numerically controlled fraise machine

Info

Publication number: CN212977624U
Application number: CN202021814297.2U
Authority: CN
Inventors: 沈峰利
Original assignee: Hebei Kuaihang New Material Technology Co ltd
Current assignee: Hebei Kuaihang New Material Technology Co ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-04-16
Anticipated expiration: 2030-08-26

Abstract

The utility model relates to a damping device for numerically controlled fraise machine belongs to numerically controlled fraise machine's field, and it includes the lathe bed, the lathe bed below is equipped with the base, be equipped with the damper who connects between them between base and the lathe bed, damper is including reducing the damper of lathe bed vibrations and keeping the whole horizontally direction subassembly of lathe bed. The numerical control milling machine has the effects of improving the milling precision of the numerical control milling machine on the machined parts and improving the quality of the machined parts.

Description

Damping device for numerically controlled fraise machine

Technical Field

The application relates to the field of numerical control milling machines, in particular to a damping device for a numerical control milling machine.

Background

With the rapid development of social production and scientific technology, mechanical products are increasingly precise and complex, and need to be frequently modified, particularly mechanical parts required in the fields of space navigation, shipbuilding, military and the like, and have high precision requirement, complex shape and small batch. The machining of such products requires frequent modification or adjustment of the equipment, and conventional machine tools or highly specialized automated machine tools have not been able to meet these requirements. In order to solve the problems, a novel machine tool, namely a numerical control machine tool, is produced. The numerical control machine tool has the advantages of strong adaptability, high machining precision, stable machining quality, high production efficiency and the like.

The Chinese patent with the publication number of CN207606527U discloses a numerically controlled milling machine with a machine body lifting device, which comprises a numerically controlled milling machine main body, wherein a transparent protection plate is fixedly connected to the front side of the numerically controlled milling machine main body, support columns which are uniformly distributed are fixedly connected to the bottom of the numerically controlled milling machine main body, a cavity base is fixedly connected to the bottom of each support column, small support legs which are uniformly distributed are fixedly connected to the bottom of the cavity base, and small pulleys are fixedly mounted at the bottoms of the small support legs. This numerically controlled fraise machine with lathe bed elevating gear makes the work lathe bed in time effectual production central line according to different production specifications and co-altitude under electric putter's effect adjust, can change when little supporting leg or little pulley go wrong simultaneously, has avoided the numerically controlled fraise machine that leads to because of the problem of pulley impaired.

In view of the above-mentioned related art, the inventor believes that there is a drawback that the vibration generated by the operation of the numerically controlled milling machine may reduce the milling accuracy of the machined part.

SUMMERY OF THE UTILITY MODEL

In order to improve the milling precision of numerically controlled fraise machine to the processing part, improve the quality of processing part, this application provides a damping device for numerically controlled fraise machine.

The application provides a damping device for numerically controlled fraise machine adopts following technical scheme:

the damping device for the numerically controlled milling machine comprises a machine body, a base is arranged below the machine body, a damping mechanism for connecting the base and the machine body is arranged between the base and the machine body, and the damping mechanism comprises a damping component for reducing vibration of the machine body and a guide component for keeping the whole machine body horizontal.

Through adopting above-mentioned technical scheme, numerically controlled fraise machine during operation, milling cutter high-speed rotation can drive the whole vibrations of lathe bed, and shock-absorbing component reduces lathe bed vibrations range at lathe bed vibrations in-process, and direction subassembly makes the whole amplitude of lathe bed the same simultaneously for one side downward sloping can not appear in the lathe bed, and the condition of one side perk upwards reduces milling cutter's vibrations range from this, improves numerically controlled fraise machine processing part's precision, thereby improves the quality of processing part.

Preferably, the guide assembly comprises a guide post arranged below the center of the lathe bed, the base is provided with a guide cylinder for inserting the guide post, and the guide post and the guide cylinder are fixedly connected through a first spring.

Through adopting above-mentioned technical scheme, the guide post supports the lathe bed, and when the lathe bed vibrations, the lathe bed drives the guide post vibrations, and the first spring of guide post below plays the effect of buffering to the vibrations of guide post and lathe bed, reduces the range of vibrations simultaneously, and cup joints the guide cylinder in the guide post outside and makes the guide post only can vibrate from top to bottom, from this at vibrations in-process, both cushion the lathe bed, makes the lathe bed keep the horizontally state simultaneously again.

Preferably, the guide post is made of shock absorption rubber.

Through adopting above-mentioned technical scheme, damping rubber can further improve the shock attenuation effect, reduces the rigidity collision between guide post and the guide cylinder simultaneously, prolongs the life of direction subassembly.

Preferably, the shock-absorbing component comprises a plurality of supporting rods hinged to the base, the supporting rods are distributed around the axis of the guide column in a surrounding mode, the axis of each supporting rod is located in the same vertical plane with the axis of the guide column, one end, far away from the base, of each supporting rod is connected with the lower portion of the bed body in a rotating mode in a sliding mode, and a second spring used for blocking relative sliding of the supporting rods and the bed body is arranged between the supporting rods and the bed body.

Through adopting above-mentioned technical scheme, shake the in-process from top to bottom at the lathe bed, the bracing piece rotates relative to the base, and the bracing piece other end then rotates and slides relative to the lathe bed, and the second spring hinders bracing piece and lathe bed relative slip this moment, reduces the vibration range of lathe bed from this, plays absorbing effect.

Preferably, the number of the supporting rods is at least 3.

Through adopting above-mentioned technical scheme, every bracing piece and lathe bed contact one point, three point could support a face, is less than that three point can only support a point or a line, can not stabilize the support, and the quantity more than or equal to three of bracing piece just can provide stable support to the lathe bed to quantity is more, supports more stably.

Preferably, one end of the supporting rod, which is far away from the base, is hinged with a sliding block, a sliding groove which is in the same vertical plane with the axis of the supporting rod is arranged below the lathe bed, the sliding block is connected with the sliding groove in a sliding manner, and two ends of the sliding block are fixedly connected with two ends of the sliding groove through the second spring.

Through adopting above-mentioned technical scheme, thereby during the lathe bed vibrations, thereby the bracing piece is driven by the lathe bed and rotates relative lathe bed, and the bracing piece promotes the slider from this and removes along the spout, and the second spring hinders the slider and removes for bracing piece rotation amplitude diminishes, thereby the lathe bed vibration amplitude that makes diminishes, consequently accomplishes shock attenuation process.

Preferably, a sliding rod parallel to the sliding groove is arranged in the sliding groove, the sliding rod penetrates through the sliding block and is in sliding connection with the sliding block, and the second springs on the two sides of the sliding block are sleeved on the sliding rod.

Through adopting above-mentioned technical scheme, the slide bar provides the support to the slider for the slider can not break away from the spout, avoids the spring to break away from the spout by compression in-process simultaneously.

Preferably, the edge of the base is provided with an auxiliary support component for supporting and stabilizing the lathe bed.

Through adopting above-mentioned technical scheme, the supplementary guide post of supplementary supporting component supports the lathe bed, reduces the shearing force to the guide post when the lathe bed has the inclination trend to the protection guide post.

Preferably, the auxiliary supporting assembly comprises a plurality of supporting cylinders which are uniformly distributed on the edge of the base, a reinforcing rod which is inserted into the supporting cylinders is arranged below the bed body, and the reinforcing rod is fixedly connected with the supporting cylinders through supporting springs.

Through adopting above-mentioned technical scheme, when the lathe bed vibrations, stiffener and support section of thick bamboo support the edge of lathe bed for when the lathe bed had the incline trend, the stiffener of incline direction one side supported the lathe bed, and supporting spring makes the stiffener can have certain amplitude, avoids the rigidity vibrations.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the shock absorption assembly reduces the shock amplitude of the lathe bed in the shock process of the lathe bed and improves the machining precision of the numerical control milling machine on parts, so that the quality of the machined parts is improved;

2. the guide assembly enables the whole amplitude of the lathe bed to be the same, so that the lathe bed does not have the condition that one side of the lathe bed inclines downwards and the other side of the lathe bed inclines upwards, and the machining precision and the machining quality are further improved;

3. the auxiliary supporting component supports the lathe bed through the auxiliary guide column, so that the shearing force to the guide column when the lathe bed is inclined is reduced, and the guide column is protected.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Fig. 2 is a schematic structural view of the damper mechanism.

Figure 3 is a schematic view of the structure of the shock absorbing assembly.

Fig. 4 is a schematic structural view of the auxiliary support assembly.

Description of reference numerals: 1. a bed body; 2. a base; 3. a guide assembly; 31. a guide post; 32. a guide cylinder; 33. a first spring; 4. a shock absorbing assembly; 41. a support bar; 42. a slider; 43. a chute; 44. a slide bar; 45. a second spring; 5. an auxiliary support assembly; 51. a reinforcing bar; 52. a support cylinder; 53. supporting the spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses damping device for numerically controlled fraise machine. Referring to fig. 1, the damping device for the numerically controlled milling machine comprises a machine body 1, a base 2 is arranged below the machine body 1, a damping mechanism for connecting the base 2 and the machine body 1 is arranged between the base 2 and the machine body 1, and the damping mechanism comprises a damping component 4 for reducing vibration of the machine body 1 and a guide component 3 for keeping the whole machine body 1 horizontal.

When the numerical control milling machine works, the milling cutter rotates at a high speed to drive the whole vibration of the machine body 1, the vibration amplitude of the machine body 1 is reduced in the vibration process of the machine body 1 by the damping component 4, meanwhile, the whole vibration amplitude of the machine body 1 is the same by the guide component 3, one side of the machine body 1 cannot incline downwards, and the other side of the machine body tilts upwards, so that the vibration amplitude of the milling cutter is reduced, the precision of parts machined by the numerical control milling machine is improved, and the quality of the machined parts is improved.

Referring to fig. 2 and 3, the guide assembly 3 includes a vertical guide column 31 fixed below the center of the bed 1, a guide cylinder 32 inserted with the guide column 31 is fixed on the base 2, and the guide column 31 is made of damping rubber. A first spring 33 is fixed at the lower end of the guide post 31, and one end of the first spring 33 far away from the guide post 31 is fixed at the bottom end inside the guide cylinder 32.

The guide column 31 supports the bed body 1, when the bed body 1 vibrates, the bed body 1 drives the guide column 31 to vibrate, and the first spring 33 below the guide column 31 plays a role in buffering the vibration of the guide column 31 and the bed body 1 and simultaneously reduces the vibration amplitude. And the guide cylinder 32 sleeved outside the guide column 31 enables the guide column 31 to vibrate only up and down, so that the bed body 1 is buffered and the bed body 1 is kept in a horizontal state in the vibration process. The damping rubber can further improve the damping effect, reduce the rigid collision between guide post 31 and guide cylinder 32 simultaneously, prolong the life of guide assembly 3.

Referring to fig. 3 and 4, the edge of the base 2 is provided with an auxiliary support assembly 5 for supporting and stabilizing the bed 1, the auxiliary support assembly 5 includes four support cylinders 52 distributed at four corners of the base 2, a reinforcing rod 51 inserted in the support cylinders 52 is fixed below the bed 1, and the reinforcing rod 51 is fixedly connected with the support cylinders 52 through support springs 53.

The auxiliary supporting component 5 supports the lathe bed 1 by the auxiliary guide column 31, reduces the shearing force to the guide column 31 when the lathe bed 1 has the inclination tendency, and accordingly protects the guide column 31. When the bed 1 vibrates, the reinforcing rod 51 and the supporting cylinder 52 support the edge of the bed 1, so that when the bed 1 tends to incline, the reinforcing rod 51 on one side of the inclining direction supports the bed 1, and the supporting spring 53 enables the reinforcing rod 51 to have certain amplitude, thereby avoiding rigid vibration.

Referring to fig. 2 and 3, the shock-absorbing assembly 4 comprises a plurality of (8 in this embodiment) support rods 41 hinged on the base 2, wherein the support rods 41 are distributed around the axis of the guide column 31, and the axis of the support rods 41 is in the same vertical plane with the axis of the guide column 31.

One end of the supporting rod 41 far away from the base 2 is hinged with a sliding block 42, a sliding groove 43 which is in the same vertical plane with the axis of the supporting rod 41 is arranged below the bed body 1, and the sliding block 42 is in sliding connection with the sliding groove 43. A sliding rod 44 parallel to the sliding groove 43 is arranged in the sliding groove 43, and two ends of the sliding rod 44 are respectively fixed on the inner walls of two ends of the sliding groove 43. The sliding rod 44 penetrates through the sliding block 42 and is connected with the sliding block 42 in a sliding mode, second springs 45 sleeved on the sliding rod 44 are fixed to the two sides of the sliding block 42, and one ends, far away from the sliding block 42, of the second springs 45 are fixed to the inner wall of the sliding groove 43.

In the up-and-down vibration process of the bed body 1, the supporting rod 41 rotates relative to the base 2, the other end of the supporting rod 41 rotates and slides relative to the bed body 1, therefore, the supporting rod 41 pushes the sliding block 42 to move in the sliding groove 43 along the sliding rod 44, the second spring 45 hinders the sliding block 42 from moving, the rotation amplitude of the supporting rod 41 is reduced, the vibration amplitude of the bed body 1 is reduced, and the damping process is completed. When the machine body 1 vibrates, the sliding rod 44 provides support for the sliding block 42, so that the sliding block 42 cannot be separated from the sliding groove 43, and meanwhile, the spring is prevented from being separated from the sliding groove 43 in the compression process.

The implementation principle of the damping device for the numerical control milling machine in the embodiment of the application is as follows: when the numerically controlled milling machine operates, the machine body 1 vibrates, so that the guide column 31 slides downwards along the guide cylinder 32, and meanwhile the reinforcing rod 51 and the support cylinder 52 support the machine body 1 on the base 2 to keep the machine body 1 horizontal; when the machine body 1 vibrates up and down, the sliding block 42 moves along the sliding rod 44, and the second spring 45 blocks the sliding block 42 from moving, so that the vibration of the machine body 1 is reduced.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a damping device for numerically controlled fraise machine, includes lathe bed (1), lathe bed (1) below is equipped with base (2), its characterized in that: the shock absorption mechanism is arranged between the base (2) and the lathe bed (1) and used for connecting the base (2) and the lathe bed (1), and comprises a shock absorption assembly (4) for reducing the vibration of the lathe bed (1) and a guide assembly (3) for keeping the whole lathe bed (1) horizontal.

2. The numerically controlled fraise machine damping device according to claim 1, characterized in that: the guide assembly (3) comprises a guide column (31) arranged below the center of the lathe bed (1), a guide cylinder (32) inserted with the guide column (31) is arranged on the base (2), and the guide column (31) and the guide cylinder (32) are fixedly connected through a first spring (33).

3. The numerically controlled fraise machine damping device according to claim 2, wherein: the guide post (31) is made of damping rubber and is used as the guide post (31).

4. The numerically controlled fraise machine damping device according to claim 2, wherein: damping component (4) include a plurality of bracing pieces (41) that articulate on base (2), bracing piece (41) encircle around guide post (31) axis and distribute and bracing piece (41) axis and guide post (31) axis in same vertical plane, the one end and lathe bed (1) below rotation and sliding connection of base (2) are kept away from in bracing piece (41), are equipped with between bracing piece (41) and the lathe bed (1) to be used for hindering both relative gliding second spring (45).

5. The numerically controlled fraise machine damping device according to claim 4, wherein: the number of the supporting rods (41) is at least 3.

6. The numerically controlled fraise machine damping device according to claim 5, wherein: one end, far away from the base (2), of the supporting rod (41) is hinged with a sliding block (42), a sliding groove (43) which is in the same vertical plane with the axis of the supporting rod (41) is arranged below the lathe bed (1), the sliding block (42) is in sliding connection with the sliding groove (43), and two ends of the sliding block (42) are fixedly connected with two ends of the sliding groove (43) through second springs (45).

7. The numerically controlled fraise machine damping device according to claim 6, wherein: a sliding rod (44) parallel to the sliding groove (43) is arranged in the sliding groove (43), the sliding rod (44) penetrates through the sliding block (42) and is in sliding connection with the sliding block (42), and second springs (45) on two sides of the sliding block (42) are sleeved on the sliding rod (44).

8. The numerically controlled fraise machine damping device according to claim 2, wherein: and the edge of the base (2) is provided with an auxiliary support component (5) for supporting and stabilizing the lathe bed (1).

9. The numerically controlled fraise machine damping device according to claim 8, wherein: the auxiliary supporting assembly (5) comprises a plurality of supporting cylinders (52) which are uniformly distributed on the edge of the base (2), reinforcing rods (51) which are inserted into the supporting cylinders (52) are arranged below the bed body (1), and the reinforcing rods (51) are fixedly connected with the supporting cylinders (52) through supporting springs (53).