CN220260616U - Feeding guide rail structure for machine tool - Google Patents
Feeding guide rail structure for machine tool Download PDFInfo
- Publication number
- CN220260616U CN220260616U CN202321987368.2U CN202321987368U CN220260616U CN 220260616 U CN220260616 U CN 220260616U CN 202321987368 U CN202321987368 U CN 202321987368U CN 220260616 U CN220260616 U CN 220260616U
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- machine tool
- damping
- supporting plate
- guide rail
- piston
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- 238000013016 damping Methods 0.000 claims abstract description 68
- 239000003921 oil Substances 0.000 description 24
- 238000003754 machining Methods 0.000 description 8
- 230000035945 sensitivity Effects 0.000 description 8
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Bearings For Parts Moving Linearly (AREA)
- Machine Tool Units (AREA)
Abstract
The utility model discloses a feeding guide rail structure for a machine tool, which comprises a machine tool body and a feeding supporting plate, wherein two side walls of the top surface of the machine tool body are provided with linear slide rails, and two side walls of the feeding supporting plate are in sliding connection with the linear slide rails through guide rail sliding blocks; a damping chute is formed in the machine tool body along the length direction of the machine tool body, and a damper is fixedly arranged on the outer wall of the feeding supporting plate at a position corresponding to the damping chute; the damper comprises a supporting plate fixedly connected with a feeding supporting plate, a hydraulic cylinder is fixedly connected to the supporting plate, two piston rods are arranged in a hydraulic cavity of the hydraulic cylinder, the telescopic ends of the piston rods face outwards to the side wall of a damping chute, and damping blocks are fixedly connected to the telescopic ends of the piston rods.
Description
Technical Field
The utility model relates to the technical field of machine tool feeding guide rails, in particular to a feeding guide rail structure for a machine tool.
Background
Most of the feed guide rails of the existing vertical grinding machines at home and abroad adopt linear rolling guide rails, the characteristics of small friction resistance and high sensitivity are utilized to easily realize high-speed and high-precision feed, but the defects of small damping force and poor vibration resistance exist, so that the machining precision of a machine tool adopting the rolling guide rails is influenced, the patent publication No. CN116160259A discloses a linear sliding rail with a buffering function, and a brake structure capable of braking the sliding rail is additionally arranged on a sliding block, so that the problems of complex structure, difficult machining, unstable operation of a feed supporting plate with increased weight, incapability of controlling the damping force of the feed supporting plate on the machine tool body and the like exist.
Disclosure of Invention
The utility model aims to overcome the existing defects, and provides the feeding guide rail structure for the machine tool, which can control the damping force of the feeding support plate on the machine tool body, has high moving sensitivity of the feeding support plate, good vibration resistance of the machine tool, improves the machining performance of the machine tool, ensures stable operation of the feeding support plate, has simple structure and convenient machining and can effectively solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the feeding guide rail structure for the machine tool comprises a machine tool body and a feeding support plate, wherein a guide rail chute is formed in the top surface of the machine tool body along the length direction of the machine tool body, linear slide rails are arranged on two side walls of the guide rail chute along the length direction of the guide rail chute, and the two side walls of the feeding support plate are in sliding connection with the linear slide rails through a plurality of guide rail sliding blocks fixedly connected with the guide rail sliding blocks; a damping chute is formed in the inner wall of the guide rail chute on the machine tool body along the length direction of the guide rail chute, and a damper is fixedly arranged on the outer wall of the feeding supporting plate at a position corresponding to the damping chute; the damper comprises a supporting plate fixedly connected with the feeding supporting plate, the supporting plate is arranged along the length direction of the damping sliding groove, a hydraulic cylinder is fixedly connected to the supporting plate, two piston rods which are arranged in a back-to-back mode are arranged in a hydraulic cavity of the hydraulic cylinder, the telescopic ends of the two piston rods face to two side walls of the damping sliding groove outwards respectively, and damping blocks are fixedly connected to the telescopic ends of the piston rods; an oil inlet and an oil outlet are formed in the hydraulic cylinder, an electro-hydraulic proportional pressure reducing valve is arranged on one side of the machine tool body, and the oil inlet and the oil outlet are connected with the electro-hydraulic proportional pressure reducing valve through an oil pipe.
Further, an oil connecting hole is formed in the supporting plate at a position corresponding to the oil inlet and outlet, and the oil connecting hole is communicated with the oil inlet and outlet; the mounting holes are formed in the supporting plates, and the supporting plates penetrate through the mounting holes through connecting bolts and are fixedly connected with the feeding supporting plates.
Further, the piston rod comprises a piston which can slide towards the side wall of the damping chute in the hydraulic cavity, a threaded hole is formed in the outer wall of the piston, which faces the damping chute, a countersunk hole matched with the threaded hole is formed in the outer side wall of the damping block, a connecting rod with a hollow structure is arranged between the piston and the damping block, and the damping block penetrates through the connecting rod through a fixing bolt to be in threaded connection with the threaded hole of the piston.
Further, a limiting arm is arranged on the supporting plate at a position corresponding to the connecting rod, and a guide hole matched with the connecting rod is formed in the limiting arm; the outside end of piston is located the pneumatic cylinder outside, and the outside end of piston all is equipped with spacing bulge loop, be equipped with the spring on the connecting rod between spacing arm and spacing bulge loop.
Further, damping pads are adhered to the outer side walls of the damping blocks.
Further, a vibration sensor is arranged on the machine tool body.
Compared with the prior art, the utility model has the beneficial effects that: the feeding guide rail structure for the machine tool generates damping to the damping sliding groove formed in the machine tool body through the damper arranged on the feeding support plate, and is matched with the guide rail sliding block to be in sliding connection with the linear guide rail on the machine tool body, so that the vibration resistance of the machine tool is improved under the condition that the movement sensitivity of the feeding support plate is ensured, the movement sensitivity of the feeding support plate is high, the vibration resistance of the machine tool is good, and the machining performance of the machine tool is improved; the damper is fixed on the feeding supporting plate, and two side walls of the damping chute are extruded through two damping blocks arranged on the damper, so that the damping force generated by the feeding supporting plate is more stable, and the feeding supporting plate operates more stably; the damping force generated by the feeding support plate on the machine tool body can be controlled through the electro-hydraulic proportional pressure reducing valve, so that the vibration resistance of the machine tool is improved under the condition of further guaranteeing the movement sensitivity of the feeding support plate; the feeding guide rail has simple structure and convenient processing.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a damper according to the present utility model;
FIG. 3 is a schematic cross-sectional view of a support plate according to the present utility model;
FIG. 4 is a schematic cross-sectional view of a hydraulic cylinder according to the present utility model;
fig. 5 is a schematic diagram of the present utility model in use.
In the figure: the hydraulic pressure control device comprises a machine tool body 1, a damping chute 101, a feeding supporting plate 2, a linear guide rail 3, a guide rail slider 4, a damper 5, a supporting plate 51, an oil liquid connecting hole 511, an installation hole 512, a limiting arm 513, a guide hole 514, a hydraulic cylinder 52, a hydraulic chamber 521, an oil inlet and outlet 522, a piston 53, a threaded hole 531, a limiting convex ring 532, a connecting rod 54, a damping block 55, a damping pad 56, a spring 57, a fixing bolt 58, a vibration sensor 6, an electrohydraulic proportional pressure reducing valve 7, a machine tool hydraulic station 8 and a controller 9.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples
Referring to fig. 1-5, the present utility model provides a technical solution: the feeding guide rail structure for the machine tool comprises a machine tool body 1 and a feeding supporting plate 2, wherein a guide rail chute is formed in the top surface of the machine tool body 1 along the length direction of the machine tool body, linear slide rails 3 are arranged on two side walls of the guide rail chute along the length direction of the guide rail chute, and the two side walls of the feeding supporting plate 2 are in sliding connection with the linear slide rails 3 through a plurality of guide rail sliding blocks 4 fixedly connected with the guide rail sliding blocks; a damping chute 101 is formed on the bottom wall of the guide rail chute along the length direction of the bottom wall of the guide rail chute, and a damper 5 is fixedly arranged on the bottom wall of the feeding support plate 2 at a position corresponding to the damping chute 101;
the damper 5 comprises a supporting plate 51, a mounting hole 512 is formed in the supporting plate 51, and the supporting plate 51 is fixedly connected with the feeding supporting plate 2 through the mounting hole 512 by a connecting bolt; the supporting plate 51 is arranged along the length direction of the damping chute 101, at least one hydraulic cylinder 52 is fixedly connected to the supporting plate 51, two opposite piston rods are arranged in a hydraulic cavity 521 of the hydraulic cylinder 52, the telescopic ends of the two piston rods face outwards to two side walls of the damping chute 101 respectively, and damping blocks 55 are fixedly connected to the telescopic ends of the piston rods;
the piston rod comprises a piston 53 which can slide towards the side wall of the damping chute 101 in the hydraulic cavity 521, a threaded hole 531 is formed in the outer wall of the piston 53 towards the damping chute 101, a countersunk hole matched with the threaded hole 531 is formed in the outer side wall of the damping block 55, a connecting rod 54 with a hollow structure is arranged between the piston 53 and the damping block 55, and the damping block 55 penetrates through the connecting rod 54 through the fixing bolt 58 and is in threaded connection with the threaded hole 531 of the piston 53;
a limiting arm 513 is arranged on the supporting plate 51 at a position corresponding to the connecting rod 54, and a guide hole 514 matched with the connecting rod 54 is formed in the limiting arm 513; the outer side end of the piston 53 is positioned at the outer side of the hydraulic cylinder 52, the outer side ends of the piston 53 are respectively provided with a limiting convex ring 532, and a spring 57 is arranged between the limiting arm 513 and the limiting convex ring 532 on the connecting rod 54;
an oil inlet and outlet 522 is formed in the hydraulic cylinder 52, an electro-hydraulic proportional pressure reducing valve 7 is arranged on one side of the machine tool body 1, and the oil inlet and outlet 522 is connected with the electro-hydraulic proportional pressure reducing valve 7 through an oil pipe; the machine tool body 1 is provided with a vibration sensor 6.
Working principle:
the electro-hydraulic proportional pressure reducing valve 7 is connected with an external machine tool hydraulic station 8 through an oil pipe, and the vibration sensor 6 and the electro-hydraulic proportional pressure reducing valve 7 are electrically connected with a controller 9 arranged outside; the feeding support plate 2 is driven to slide along the linear guide rail 3 through a driving structure on the machine tool, the feeding support plate 2 drives a workpiece with the upper end fixed to move, and after the workpiece moves in place, the feeding support plate 2 stops moving to process the workpiece;
when the feeding support plate 2 slides smoothly, the vibration sensor 6 does not detect the vibration of the machine tool body 1 or detects the vibration of the machine tool body 1 within a reasonable range, the external machine tool hydraulic station 8 does not supply oil to the hydraulic cylinder 52, the piston 53 is in a contracted state through the elasticity of the spring 57, the contraction of the piston 53 is limited through the limiting convex ring 532 arranged on the piston 53, at the moment, the damping block 55 is not contacted with the side wall of the damping chute 101, at the moment, the feeding support plate 2 is in an undamped state, and the moving sensitivity of the feeding support plate 2 is ensured;
when the feeding support plate 2 slides unstably or the machining of a workpiece causes the machine tool body 1 to vibrate, the vibration sensor 6 detects that the vibration of the machine tool body 1 is out of a reasonable range, oil is supplied to the electro-hydraulic proportional pressure reducing valve 7 through the external machine tool hydraulic station 8, oil in the electro-hydraulic proportional pressure reducing valve 7 enters the hydraulic cavity 521 of the hydraulic cylinder 52 after passing through the oil inlet and outlet 522, hydraulic oil in the hydraulic cavity 521 enables pistons 53 on two sides to slide outwards simultaneously against the elastic force of the springs 57, further damping blocks 55 on two sides squeeze two side walls of the damping chute 101 to generate damping, and the electro-hydraulic proportional pressure reducing valve 7 controls the oil pressure according to the detection signal of the vibration sensor 6, further controls the damping force of the damping blocks 55 on two side walls of the damping chute 101, improves the vibration resistance of the machine tool, and improves the machining performance of the machine tool.
According to the feeding guide rail structure for the machine tool, disclosed by the embodiment, the damping sliding groove 101 formed in the machine tool body 1 is damped through the damper 5 arranged on the feeding support plate 2, and the damping sliding groove is matched with the guide rail sliding block 4 to be in sliding connection with the linear guide rail 3 on the machine tool body 1, so that the vibration resistance of the machine tool is improved under the condition that the movement sensitivity of the feeding support plate 2 is ensured, and the machining performance of the machine tool is improved; the damper 5 is fixed on the feeding support plate 2, and two side walls of the damping chute 101 are extruded through two damping blocks 55 arranged on the damper 5, so that the damping force generated by the feeding support plate 2 is more stable, and the feeding support plate 2 operates more stably; the damping force generated by the feeding support plate 2 on the machine tool body 1 can be controlled through the electro-hydraulic proportional pressure reducing valve 7, and the vibration resistance of the machine tool is improved under the condition of further guaranteeing the movement sensitivity of the feeding support plate 2.
Further, damping pads 56 are adhered to the outer side walls of the damping blocks 55, and the wear resistance of the damping blocks 55 is increased through the damping pads 56.
Further, an oil connection hole 511 is formed in the support plate 51 at a position corresponding to the oil inlet/outlet 522, and the oil connection hole 511 is communicated with the oil inlet/outlet 522.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a feeding guide rail structure for lathe, includes lathe bed and feeds layer board, its characterized in that: the top surface of the machine tool body is provided with a guide rail chute along the length direction, two side walls of the guide rail chute are provided with linear slide rails along the length direction, and the two side walls of the feeding support plate are in sliding connection with the linear slide rails through a plurality of guide rail sliding blocks fixedly connected with the two side walls of the feeding support plate; a damping chute is formed in the inner wall of the guide rail chute on the machine tool body along the length direction of the guide rail chute, and a damper is fixedly arranged on the outer wall of the feeding supporting plate at a position corresponding to the damping chute; the damper comprises a supporting plate fixedly connected with a feeding supporting plate, the supporting plate is arranged along the length direction of a damping sliding groove, a hydraulic cylinder is fixedly connected to the supporting plate, two piston rods which are arranged in a back-to-back mode are arranged in a hydraulic cavity of the hydraulic cylinder, the telescopic ends of the two piston rods face to two side walls of the damping sliding groove outwards respectively, and damping blocks are fixedly connected to the telescopic ends of the piston rods.
2. A feed rail structure for a machine tool according to claim 1, characterized in that: an oil inlet and an oil outlet are formed in the hydraulic cylinder, an electro-hydraulic proportional pressure reducing valve is arranged on one side of the machine tool body, and the oil inlet and the oil outlet are connected with the electro-hydraulic proportional pressure reducing valve through an oil pipe.
3. A feed rail structure for a machine tool according to claim 1, characterized in that: an oil connecting hole is formed in the supporting plate at a position corresponding to the oil inlet and outlet, and the oil connecting hole is communicated with the oil inlet and outlet; the mounting holes are formed in the supporting plates, and the supporting plates penetrate through the mounting holes through connecting bolts and are fixedly connected with the feeding supporting plates.
4. A feed rail structure for a machine tool according to claim 1, characterized in that: the piston rod comprises a piston which can slide towards the side wall of the damping chute in the hydraulic cavity, a threaded hole is formed in the outer wall of the piston, which faces the damping chute, a countersunk hole matched with the threaded hole is formed in the outer side wall of the damping block, a connecting rod with a hollow structure is arranged between the piston and the damping block, and the damping block penetrates through the connecting rod through a fixing bolt to be in threaded connection with the threaded hole of the piston.
5. A feed rail structure for a machine tool according to claim 4, wherein: a limiting arm is arranged on the supporting plate at a position corresponding to the connecting rod, and a guide hole matched with the connecting rod is formed in the limiting arm; the outside end of piston is located the pneumatic cylinder outside, and the outside end of piston all is equipped with spacing bulge loop, be equipped with the spring on the connecting rod between spacing arm and spacing bulge loop.
6. A feed rail structure for a machine tool according to claim 1, characterized in that: damping pads are adhered to the outer side walls of the damping blocks.
7. A feed rail structure for a machine tool according to claim 1, characterized in that: and a vibration sensor is arranged on the machine tool body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321987368.2U CN220260616U (en) | 2023-07-27 | 2023-07-27 | Feeding guide rail structure for machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321987368.2U CN220260616U (en) | 2023-07-27 | 2023-07-27 | Feeding guide rail structure for machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220260616U true CN220260616U (en) | 2023-12-29 |
Family
ID=89299330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321987368.2U Active CN220260616U (en) | 2023-07-27 | 2023-07-27 | Feeding guide rail structure for machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220260616U (en) |
-
2023
- 2023-07-27 CN CN202321987368.2U patent/CN220260616U/en active Active
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