CN218613034U - Double-lead-screw double-oil-cylinder driving system with vertical shaft - Google Patents
Double-lead-screw double-oil-cylinder driving system with vertical shaft Download PDFInfo
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- CN218613034U CN218613034U CN202222710271.9U CN202222710271U CN218613034U CN 218613034 U CN218613034 U CN 218613034U CN 202222710271 U CN202222710271 U CN 202222710271U CN 218613034 U CN218613034 U CN 218613034U
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Abstract
The utility model discloses a vertical axis's double screw double cylinder actuating system relates to the digit control machine tool field, include: the sliding plate is arranged along the vertical direction, one side of the sliding plate is provided with two mounting seats, and a containing groove is formed between the two mounting seats; the ram is movably arranged in the accommodating groove; the screw rod assemblies are respectively arranged on two sides of the ram, and the ram is connected with the mounting seat through the screw rod assemblies; two ends of the balance oil cylinder assembly are respectively connected with the lead screw assembly and the ram; the telescopic axis of the balance oil cylinder assembly, the axis of a lead screw of the lead screw assembly and the central plane of the ram are positioned on the same plane; the axis of the screw rod assembly of the driving system and the axis direction of the telescopic movement of the balance oil cylinder assembly are on the same plane, so that the gravity center driving of a vertical shaft is realized, the vibration of a linear shaft is reduced, and the high precision and the dynamic response speed of a transmission chain are ensured.
Description
Technical Field
The utility model belongs to the digit control machine tool field, more specifically relates to a vertical parallel bars double cylinder actuating system of axle.
Background
Aiming at the high-efficiency, high-precision and stable processing requirements of parts in the fields of aerospace, rail traffic, military industry and the like, a vertical shaft of a numerical control machine tool needs to have the characteristics of high precision and high dynamic characteristics. The traditional numerical control machine tool generally adopts a mode that a motor is connected with a lead screw to drive a ram to move up and down and an oil cylinder balances the gravity of the ram.
At present, a vertical shaft double-screw double-oil cylinder driving system of a numerical control machine tool is roughly in the following form: the first structure adopts a structure that single lead screw and single oil cylinders are distributed on two sides of a ram; the second structure adopts a single-screw double-oil-cylinder structure, namely a structure that a screw is arranged between a ram and oil cylinders are distributed on two sides of the ram; the third type adopts the structure of double screw rods and double oil cylinders, namely the screw rods are distributed on the left side and the right side of the ram, and the oil cylinders are distributed on the front side and the rear side of the ram.
The structure has various advantages and disadvantages, the first structure is simple, the assembly is easy, the adjustment precision is easy, but the ram transmission shaft simultaneously bears bending moment and torque, the transmission power of the transmission shaft is limited, and the output power, the rotating speed and the torque are limited. The second type has compact structure and the widest application, but the screw rod driving position deviates from the center of gravity of the ram, and the numerical control machine tool is easy to vibrate under the conditions of high speed and high acceleration and deceleration. The double-screw drive with the third structure has a remarkable effect on inhibiting vibration caused by the machine tool under the conditions of high speed and high acceleration and deceleration, but the double oil cylinders are symmetrically arranged in the front-back direction, the double-screw axis and the double oil cylinder axis are vertically distributed, the structure is complex, and the occupied space is large.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a perpendicular two thick stick double oil cylinder actuating system of axle to the not enough that prior art exists, this actuating system lead screw assembly's lead screw axis and the axis direction of the flexible removal of balanced oil cylinder subassembly are in the coplanar, have realized the focus drive of perpendicular axle, have reduced the vibration of sharp axle, have guaranteed the high accuracy and the dynamic response speed of driving chain.
In order to achieve the above object, the present invention provides a double screw double cylinder driving system of vertical shaft, including:
the sliding plate is of a plate-shaped structure and is arranged along the vertical direction, two mounting seats are arranged on one side of the sliding plate, and a containing groove is formed between the two mounting seats;
the ram is movably arranged in the accommodating groove;
the two screw rod assemblies are respectively arranged on two sides of the ram, and the ram is connected with the mounting seat through the screw rod assemblies;
the two balance oil cylinder assemblies are respectively arranged between the screw rod assembly and the ram, one end of each balance oil cylinder assembly is connected with the sliding plate, and the other end of each balance oil cylinder assembly is connected with the ram;
the telescopic axis of the balance oil cylinder assembly, the axis of the lead screw assembly and the central plane of the ram are in the same plane.
Optionally, the ram is centrally disposed on one side of the sled.
Optionally, the mounting structure further comprises two linear guide rails, each linear guide rail comprises a vertical rail and a sliding block, the vertical rails are arranged on one side, close to each other, of the two mounting seats, the sliding blocks are respectively arranged on two sides of the ram, and the vertical rails are connected with the sliding blocks in a sliding mode.
Optionally, the holding tank is the U-shaped, the holding tank will the top and the bottom intercommunication of slide, the ram is close to one side of slide inlays to be located in the holding tank.
Optionally, the lead screw assembly comprises:
the upper supporting seat is arranged at the top of the sliding plate;
the lower supporting seat is arranged at the bottom of the sliding plate;
the screw rod is rotatably arranged between the upper supporting seat and the lower supporting seat, and is provided with a nut which is connected with the ram;
and the driving motor is arranged on the upper supporting seat, and the output end of the driving motor penetrates through the upper supporting seat and is connected with the screw rod in a driving manner.
Optionally, the drive motor is a servo motor.
Optionally, the two ends of the top of the sliding plate are respectively provided with a connecting seat, the sliding plate is connected with the upper supporting seat through the connecting seats, reinforcing ribs are arranged on the periphery of the connecting seats, a through groove is formed in the connecting seats, and the lead screw penetrates through the through groove.
Optionally, horizontal support plates are respectively arranged at two ends of the bottom of the sliding plate, the lower support seat is arranged on the top surface of the horizontal support plate, a ball bearing is arranged on the lower support seat, and the screw rod is inserted into the ball bearing.
Optionally, the balancing cylinder assembly comprises:
the first oil cylinder supports are arranged at two ends of the top of the sliding plate;
the second oil cylinder supports are arranged on two sides of the bottom of the ram;
the oil cylinder is connected with the first oil cylinder support, and the telescopic end of the oil cylinder is connected with the second oil cylinder support.
Optionally, the second oil cylinder support comprises a fixed seat and a connecting rod, the fixed seat is connected with the ram, one end of the connecting rod is connected with the telescopic end of the oil cylinder, and the other end of the connecting rod is hinged to the fixed seat.
The utility model provides a vertical axis's mariages thick stick double cylinder actuating system, its beneficial effect lies in:
1. the driving system realizes gravity center driving of a vertical shaft by driving of a double screw rod and a double oil cylinder, reduces vibration of a linear shaft, and ensures high precision and dynamic response speed of a transmission chain;
2. the rigidity of a transmission system of the driving system is in direct proportion to the diameter of the lead screw, the axis of a telescopic rod of the oil cylinder and the axis of the lead screw are positioned on the same plane, the equivalent diameter of the lead screw is increased, and the rigidity of the driving system is obviously improved;
3. in the driving system, two ends of a lead screw are fixed after being pre-stretched, and the lead screw cooled by hollow water is adopted, so that expansion caused by self thermal deformation of a lead screw body in the transmission process is eliminated.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings, wherein like reference numerals generally represent like parts throughout the exemplary embodiments.
Fig. 1 shows a schematic diagram of a vertical-axis double-screw double-cylinder drive system according to an embodiment of the present invention.
Fig. 2 shows a schematic structural diagram of a vertical-shaft double-screw double-cylinder driving system with a ram removed according to an embodiment of the present invention.
Description of reference numerals:
1. a slide plate; 2. a mounting seat; 3. a ram; 4. a balancing cylinder assembly; 5. a vertical track; 6. a slider; 7. an upper support base; 8. a lower support seat; 9. a lead screw; 10. a drive motor; 11. a connecting seat; 12. reinforcing ribs; 13. a horizontal support plate; 14. a first cylinder bracket; 15. a second cylinder bracket; 16. and an oil cylinder.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The utility model provides a vertical axis's double screw double cylinder actuating system, include:
the sliding plate is of a plate-shaped structure and is arranged along the vertical direction, two mounting seats are arranged on one side of the sliding plate, and a containing groove is formed between the two mounting seats;
the ram is movably arranged in the accommodating groove;
the screw rod assemblies are respectively arranged on two sides of the ram, and the ram is connected with the mounting seat through the screw rod assemblies;
the balance oil cylinder assemblies are respectively arranged between the screw rod assembly and the ram, one end of each balance oil cylinder assembly is connected with the sliding plate, and the other end of each balance oil cylinder assembly is connected with the ram;
the telescopic axis of the balance oil cylinder assembly, the axis of the lead screw assembly and the central plane of the ram are in the same plane.
Specifically, the fixed end and the moving end of the driving system are respectively a sliding plate and a ram, the ram slides between the mounting seats through a lead screw assembly, a certain relation exists between the arrangement of the balance oil cylinder assembly and the lead screw assembly, the telescopic axis of the balance oil cylinder assembly and the lead screw axis of the lead screw assembly are ensured to be positioned on the same plane, and the central line of the ram is also positioned on the plane, so that the ram can be driven by the gravity center of the lead screw assembly, the vibrating beam of the lead screw in the moving process is reduced, and the high precision and the dynamic response speed of the moving of the ram are ensured.
Optionally, the ram is centrally disposed on one side of the sled.
Specifically, the mount pad symmetry sets up on the slide, and the ram sets up between two parties in one side of slide, and the ram passes through the lead screw subassembly realization removal on the mount pad, can guarantee the stability of ram at the removal in-process.
Optionally, the sliding mechanism further comprises two linear guide rails, each linear guide rail comprises a vertical rail and a sliding block, the vertical rails are arranged on one side, close to the two mounting seats, the sliding blocks are respectively arranged on two sides of the ram, and the vertical rails are connected with the sliding blocks in a sliding mode.
Specifically, a linear guide rail is arranged between the mounting seats and the ram, and the linear guide rail can improve the moving stability of the ram between the two mounting seats and control the moving direction of the ram.
Optionally, the holding tank is the U-shaped, and the holding tank is with the top and the bottom intercommunication of slide, and the ram is close to one side of slide and inlays to locate in the holding tank.
Specifically, two mount pads set up on the slide, form the holding tank of a U-shaped through three structure, and one side embedding of ram sets up linear guide respectively in the holding tank in two lateral wall positions of holding tank, and linear guide is connected with one side of ram, and the ram is in the outside one side of holding tank and is used for being connected with lead screw assembly and balanced cylinder assembly, realizes the stability that the ram removed.
Optionally, the lead screw assembly comprises:
the upper supporting seat is arranged at the top of the sliding plate;
the lower supporting seat is arranged at the bottom of the sliding plate;
the screw rod is rotatably arranged between the upper support seat and the lower support seat, and a nut is arranged on the screw rod and connected with the ram;
and the driving motor is arranged on the upper supporting seat, and the output end of the driving motor penetrates through the upper supporting seat to be connected with the screw rod in a driving manner.
Specifically, in the lead screw assembly, driving motor drives the lead screw and rotates, so that the screw moves along the axis direction of the lead screw, the screw is connected with the side surface of the ram, the lead screw assembly drives the ram to move on the sliding plate, the transmission structure is simple, and the moving process is stable.
Optionally, the drive motor is a servo motor.
Specifically, servo motor can drive the lead screw and realize stable the rotation to realize the rotation of just reversing of lead screw, transmission speed is fast, and servo motor moves stably.
Optionally, the both ends at the top of slide are provided with the connecting seat respectively, and the slide passes through the connecting seat to be connected with last supporting seat, and the periphery of connecting seat is provided with the strengthening rib, and the inside of connecting seat is provided with and link up the groove, and the lead screw runs through in linking up the groove.
Specifically, the slide is connected with last supporting seat through the connecting seat, provides stable support when making last supporting seat for the lead screw rotation, is provided with the strengthening rib on the connecting seat to avoid influencing the installation between lead screw and the upper and lower supporting seat, seted up the through groove in the connecting seat, guarantee each other not to influence between mount pad and the lead screw.
Optionally, horizontal support plates are respectively arranged at two ends of the bottom of the sliding plate, a lower support seat is arranged on the top surface of each horizontal support plate, a ball bearing is arranged on each lower support seat, and the lead screw is inserted into each ball bearing.
Specifically, the upper portion of going up the supporting seat is provided with driving motor, and the upper portion of under bracing seat is provided with ball bearing, fixes the lead screw centre gripping between the two through driving motor and ball bearing like this, and driving motor can easily drive the rotation of lead screw like this, guarantees lead screw pivoted stability.
Optionally, the balancing cylinder assembly comprises:
the first oil cylinder supports are arranged at two ends of the top of the sliding plate;
the second oil cylinder bracket is arranged on two sides of the bottom of the ram;
the oil cylinder is connected with the first oil cylinder support, and the telescopic end of the oil cylinder is connected with the second oil cylinder support.
Specifically, the oil cylinder and the telescopic rod of the oil cylinder are arranged between the lead screw and the ram, the axis of the telescopic rod of the oil cylinder and the axis of the lead screw are in the same plane, the oil cylinder enables the moving direction of the ram to be more stable through the self-arranged position, vibration caused by linear shaft transmission is reduced, and high-precision moving and dynamic response speed of the ram are guaranteed.
Optionally, the second oil cylinder support comprises a fixed seat and a connecting rod, the fixed seat is connected with the ram, one end of the connecting rod is connected with the telescopic end of the oil cylinder, and the other end of the connecting rod is hinged to the fixed seat.
Specifically, the flexible end of hydro-cylinder realizes articulated the being connected with the side of ram, makes the ram when moving between two balanced hydro-cylinder subassemblies, and the volume of rocking of ram is alleviated through second hydro-cylinder support, guarantees that the ram is under lead screw subassembly's drive, along the axis direction steady movement of lead screw.
Examples
As shown in fig. 1 to 2, the utility model provides a vertical axis's double-lead-screw double-cylinder actuating system, include:
the sliding plate 1 is of a plate-shaped structure, the sliding plate 1 is arranged along the vertical direction, two mounting seats 2 are arranged on one side of the sliding plate 1, and an accommodating groove is formed between the two mounting seats 2;
the ram 3 is movably arranged in the accommodating groove;
the two screw rod assemblies are respectively arranged on two sides of the ram 3, and the ram 3 is connected with the mounting base 2 through the screw rod assemblies;
the balance oil cylinder assemblies 4 are respectively arranged between the screw rod assembly and the ram 3, one end of each balance oil cylinder assembly 4 is connected with the sliding plate 1, and the other end of each balance oil cylinder assembly 4 is connected with the ram 3;
the telescopic axis of the balance oil cylinder assembly 4, the axis of the lead screw assembly and the central plane of the ram 3 are in the same plane.
In the present embodiment, the ram 3 is provided centrally on one side of the slide board 1.
In this embodiment, still including two linear guide, linear guide includes vertical track 5 and slider 6, and vertical track 5 is in the one side that two mount pads 2 are close to each other, and slider 6 sets up respectively in the both sides of ram 3, vertical track 5 and slider 6 sliding connection.
In this embodiment, the holding tank is the U-shaped, and the holding tank is with slide 1's top and bottom intercommunication, and ram 3 is close to one side of slide 1 and inlays to locate in the holding tank.
In this embodiment, the lead screw assembly includes:
the upper supporting seat 7 is arranged at the top of the sliding plate 1;
the lower supporting seat 8 is arranged at the bottom of the sliding plate 1;
the screw rod 9 is rotatably arranged between the upper support seat 7 and the lower support seat 8, and a nut is arranged on the screw rod 9 and connected with the ram 3;
and the driving motor 10 is arranged on the upper supporting seat 7, and the output end of the driving motor 10 penetrates through the upper supporting seat 7 and is in driving connection with the lead screw 9.
In the present embodiment, the drive motor 10 is a servo motor.
In this embodiment, two ends of the top of the sliding plate 1 are respectively provided with a connecting seat 11, the sliding plate 1 is connected with the upper supporting seat 7 through the connecting seats 11, the periphery of the connecting seat 11 is provided with a reinforcing rib 12, the inside of the connecting seat 11 is provided with a through groove, and the screw rod 9 penetrates through the through groove.
In this embodiment, horizontal support plates 13 are respectively disposed at two ends of the bottom of the slide board 1, a lower support seat 8 is disposed on the top surface of the horizontal support plate 13, a ball bearing is disposed on the lower support seat 8, and the screw shaft 9 is inserted into the ball bearing.
In this embodiment, the balancing cylinder assembly includes:
the first oil cylinder brackets 14 are arranged at two ends of the top of the sliding plate 1;
the second oil cylinder bracket 15 is arranged on two sides of the bottom of the ram 1;
and the oil cylinder 16 is connected with the first oil cylinder bracket 14, and the telescopic end of the oil cylinder 16 is connected with the second oil cylinder bracket 15.
In this embodiment, second hydro-cylinder support 15 includes fixing base and connecting rod, and the fixing base is connected with ram 3, and the one end of connecting rod is connected with 16 flexible ends of hydro-cylinder, and the other end and the fixing base of connecting rod are articulated.
In conclusion, in the driving system, the ram 3 and the sliding plate 1 realize vertical movement through the two screw rod assemblies and the two balance oil cylinder assemblies 4, linear guide rails are symmetrically arranged on two sides of the ram 3 and are in rolling connection with the sliding plate 1; the top and bottom two sides of the sliding plate 1 are symmetrically provided with an upper supporting seat 7 and a lower supporting seat 8 respectively, screws 9 on the same side are arranged between the upper supporting seat 7 and the lower supporting seat 8, each screw 9 is coaxially provided with a driving motor 10, the two sides of the balance oil cylinder assembly 4 are symmetrically arranged between the screw 9 and the ram 3, the axis of the telescopic end of the oil cylinder 16 and the axis of the screw 9 are located on the same plane, the top two sides of the sliding plate 1 are symmetrically provided with first oil cylinder supports 14, the bottom two sides of the ram 3 are symmetrically provided with second oil cylinder supports 15, the oil cylinder 16 is arranged between the first oil cylinder supports 14 and the second oil cylinder supports 15, and high-precision transmission and high dynamic response speed of the ram are guaranteed.
While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. The utility model provides a two hydro-cylinder actuating system of two lead screws of vertical axle which characterized in that includes:
the sliding plate is of a plate-shaped structure and is arranged along the vertical direction, two mounting seats are arranged on one side of the sliding plate, and a containing groove is formed between the two mounting seats;
the ram is movably arranged in the accommodating groove;
the two lead screw assemblies are respectively arranged on two sides of the ram, and the ram is connected with the mounting base through the lead screw assemblies;
the two balance oil cylinder assemblies are respectively arranged between the screw rod assembly and the ram, one end of each balance oil cylinder assembly is connected with the sliding plate, and the other end of each balance oil cylinder assembly is connected with the ram;
the telescopic axis of the balance oil cylinder assembly, the axis of the lead screw assembly and the central plane of the ram are in the same plane.
2. A double-screw double-cylinder drive system of a vertical shaft according to claim 1, characterised in that the ram is arranged centrally on one side of the skid.
3. A double-lead-screw double-cylinder drive system of a vertical shaft according to claim 2, characterised in that it also comprises two linear guides, which comprise a vertical rail on the side where the two mountings are close to each other and a slide block, which is arranged on each side of the ram, the vertical rail being connected to the slide block in a sliding manner.
4. A double-lead-screw and double-cylinder drive system of a vertical shaft according to claim 3, characterised in that the receiving groove is U-shaped, which communicates the top and bottom of the slide, the ram being embedded in the receiving groove on the side close to the slide.
5. A double-screw double-cylinder drive system of a vertical shaft according to claim 1, characterised in that the screw assembly comprises:
the upper supporting seat is arranged at the top of the sliding plate;
the lower supporting seat is arranged at the bottom of the sliding plate;
the screw rod is rotatably arranged between the upper supporting seat and the lower supporting seat, and is provided with a nut which is connected with the ram;
and the driving motor is arranged on the upper supporting seat, and the output end of the driving motor penetrates through the upper supporting seat and is connected with the screw rod in a driving manner.
6. A vertical axis double screw double cylinder drive system according to claim 5, characterised in that the drive motor is a servo motor.
7. The double-screw double-cylinder driving system of a vertical shaft according to claim 5, wherein connecting seats are respectively provided at both ends of the top of the slide plate, the slide plate is connected to the upper supporting seat through the connecting seats, reinforcing ribs are provided on the outer circumference of the connecting seats, through grooves are provided in the connecting seats, and the screw penetrates through the through grooves.
8. The double-screw double-cylinder drive system of a vertical shaft according to claim 5, characterised in that horizontal support plates are provided at both ends of the bottom of the slide plate, respectively, the lower support seats are provided on the top surfaces of the horizontal support plates, ball bearings are provided on the lower support seats, and the screw is inserted into the ball bearings.
9. A double-screw double-cylinder drive system of a vertical shaft according to claim 1, characterised in that the balancing cylinder assembly comprises:
the first oil cylinder supports are arranged at two ends of the top of the sliding plate;
the second oil cylinder supports are arranged on two sides of the bottom of the ram;
the oil cylinder is connected with the first oil cylinder support, and the telescopic end of the oil cylinder is connected with the second oil cylinder support.
10. A vertical shaft double-lead-screw double-cylinder driving system according to claim 9, characterised in that the second cylinder support comprises a fixing seat and a connecting rod, the fixing seat being connected to the ram, one end of the connecting rod being connected to the telescopic end of the cylinder, the other end of the connecting rod being hinged to the fixing seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222710271.9U CN218613034U (en) | 2022-10-14 | 2022-10-14 | Double-lead-screw double-oil-cylinder driving system with vertical shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222710271.9U CN218613034U (en) | 2022-10-14 | 2022-10-14 | Double-lead-screw double-oil-cylinder driving system with vertical shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218613034U true CN218613034U (en) | 2023-03-14 |
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ID=85471093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222710271.9U Active CN218613034U (en) | 2022-10-14 | 2022-10-14 | Double-lead-screw double-oil-cylinder driving system with vertical shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218613034U (en) |
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2022
- 2022-10-14 CN CN202222710271.9U patent/CN218613034U/en active Active
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