CN216858248U - Servo compensation mechanism of horizontal ram operation precision - Google Patents
Servo compensation mechanism of horizontal ram operation precision Download PDFInfo
- Publication number
- CN216858248U CN216858248U CN202220234019.2U CN202220234019U CN216858248U CN 216858248 U CN216858248 U CN 216858248U CN 202220234019 U CN202220234019 U CN 202220234019U CN 216858248 U CN216858248 U CN 216858248U
- Authority
- CN
- China
- Prior art keywords
- fixed
- spindle box
- fixedly connected
- ram
- servo
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Transmission Devices (AREA)
Abstract
The utility model discloses a servo compensation mechanism for the running precision of a horizontal ram, and relates to the technical field of numerical control machines. The spindle box comprises a spindle box, wherein one end of the top of the spindle box is fixedly connected with a driving mechanism communicated with the interior of the spindle box; the driving mechanism comprises a servo motor and a planetary reduction gearbox, the servo motor is fixed at the top end of the planetary reduction gearbox, and the output end of the servo motor is fixed with one end of a rotatable speed change gear set in the planetary reduction gearbox; the other end of the speed change gear set is fixedly connected with a planetary roller screw, one end of the planetary roller screw is rotatably connected with the bottom of the main shaft box, and the outer part of the planetary roller screw is rotatably screwed with an output mechanism. The utility model realizes the deflection compensation of the ram by fixing the servo driving structure on the main spindle box and driving the double-deflection plate to drive the ram to swing at a small angle, and in addition, the problems of low response speed, unstable precision and the like are solved because the compensation quantity is detected in real time by the over-pair displacement meter.
Description
Technical Field
The utility model relates to the technical field of numerical control machines, in particular to a servo compensation mechanism for the running precision of a horizontal ram.
Background
When the ram of the numerical control floor type milling and boring machine is stretched, along with the increase of the stretching amount of the ram, the self gravity of the ram and an accessory head, the gravity center change of a ram spindle box assembly and the micro deformation of an Y, Z shaft guide rail can cause the downward deformation displacement of the front end of the ram, the displacement directly influences the processing precision of machine tool parts, and the compensation must be carried out aiming at the deformation.
At present, main compensation mechanisms are adopted as a front and rear steel wire rope balance-hydraulic cylinder compensation mechanism and a ram hydraulic pull rod compensation structure, and hydraulic control is adopted, so that the defects of slow compensation response, instability, low compensation precision and the like exist, the improvement of the telescopic operation precision and the feeding speed of the ram is restricted, and compared with a hydraulic mechanism, a servo compensation mechanism is stable in position and quick in response, so that a novel device is provided to solve the existing problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a servo compensation mechanism for the running precision of a horizontal ram, so as to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: a servo compensation mechanism for the running precision of a horizontal ram comprises a main spindle box, wherein one end of the top of the main spindle box is fixedly connected with a driving mechanism communicated with the interior of the main spindle box;
the driving mechanism comprises a servo motor and a planetary reduction gearbox, the servo motor is fixed at the top end of the planetary reduction gearbox, and the output end of the servo motor is fixed with one end of a rotatable speed change gear set in the planetary reduction gearbox;
the other end of the speed change gear set is fixedly connected with a planetary roller screw, one end of the planetary roller screw is rotationally connected with the bottom of the spindle box, and the external part of the planetary roller screw is rotationally screwed with an output mechanism;
the output mechanism comprises a fixed block, one side of the fixed block is fixed with the inner wall of one end of the main shaft box, two ends of the other side of the fixed block are respectively and fixedly connected with a bendable double-deflection plate,
the middle part between two double deflection boards is fixed through a connecting shaft, the inside of the connecting shaft is in rotating threaded connection with the outside of the planetary roller screw, and one end between the two double deflection boards is clamped with a ram body.
Furthermore, one end of the inner side of each of the two double-deflection plates is fixedly connected with a linear guide rail, a fixed sliding block and a movable sliding block are arranged inside each of the two linear guide rails, the fixed sliding blocks are fixed on two sides of the front end of the ram body, and the movable sliding blocks are fixed on two sides of the rear end of each of the double-deflection plates.
Furthermore, an absolute value type displacement meter is arranged in the spindle box, and the absolute value type displacement meter and the two fixed sliding blocks are arranged at one end of the cylinder.
Furthermore, one side of the fixed block is fixedly connected with a stable top rubber, two ends of the stable top rubber are rotatably connected with fixed bolts, and the stable top rubber is fixed with one end of each of the two double-deflection plates through the fixed bolts;
the bottom fixedly connected with of fixed block extends the piece, the bottom that extends the piece with the inside bottom of headstock is fixed mutually.
Furthermore, the one end fixedly connected with support at main shaft box top, main shaft box and actuating mechanism are fixed mutually through the support, the bottom fixedly connected with horizontal base of main shaft box, the both sides at horizontal base top fixedly connected with guide rail soft area respectively, the ram body passes through guide rail soft area and horizontal base sliding connection.
Furthermore, a pressing mechanism is arranged at one end inside the spindle box and comprises a rotating motor, a base of the rotating motor is fixedly installed at the top end of one side of the spindle box, an output end of the rotating motor is fixedly connected with a rotating shaft penetrating through the inside of the spindle box, and one end of the rotating shaft is rotatably connected with the top end of the other side of the spindle box;
the outside fixedly connected with stopper of axis of rotation, the screw thread of equidirectional is seted up respectively at the outside both ends of axis of rotation, and the screw thread of two equidirectionals outwards extends with the stopper starting point.
Furthermore, the two ends of the outer part of the rotating shaft are connected with press plates in a threaded manner through threads, each press plate is divided into an upper press plate and a lower press plate, the two ends of the top of each upper press plate are respectively and fixedly connected with a connecting shaft, and the top end of each connecting shaft is in sliding connection with the top end of the inner part of the spindle box.
Compared with the prior art, the utility model has the beneficial effects that:
according to the servo compensation mechanism for the operation precision of the horizontal ram, the servo driving structure is fixed on the spindle box, the double-deflection plate is driven to drive the ram to swing at a small angle, the deflection compensation of the ram is realized, and in addition, the compensation quantity is detected in real time by a value type displacement meter, so that the problems of low response speed, unstable precision and the like are solved.
According to the servo compensation mechanism for the operation precision of the horizontal ram, a certain amount of deviation occurs on the deflection plate, so that the ram body fixed with the deflection plate also deviates by a certain amount, the deviation phenomenon of the ram is limited by a simple mechanical structure, and the deviation of the ram in use is reduced.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a partial block diagram of A-A of FIG. 1;
FIG. 3 is a partial enlarged structural view of B-B in FIG. 1;
fig. 4 is a schematic diagram of a compensation principle of an embodiment of the present invention.
In the figure: 1. a servo motor; 2. a planetary reduction gearbox; 3. an absolute value type displacement meter; 4. a support; 5. a planetary roller screw; 6. a coupling shaft; 7. a double deflection plate; 8. moving the slide block; 9. a main spindle box; 10. a ram body; 11. fixing the sliding block; 12. a linear guide rail; 13. an upper pressure plate; 14. a lower pressing plate; 15. a guide rail soft belt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
It should be noted that in the description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Further, it will be appreciated that the dimensions of the various elements shown in the figures are not drawn to scale, for ease of description, and that the thickness or width of some layers may be exaggerated relative to other layers, for example.
It should be noted that like reference numerals and letters refer to like items in the following figures, and thus, once an item is defined or illustrated in one figure, it will not need to be further discussed or illustrated in detail in the description of the following figure.
As shown in fig. 1 to 4, the present invention provides a technical solution: a servo compensation mechanism for the running precision of a horizontal ram comprises a main spindle box 9.
It should be noted that, in the embodiment provided by the present application, the spindle head 9 has the following features:
first, a driving mechanism communicated with the inside of the main spindle box is fixedly connected to one end of the top of the main spindle box 9.
Secondly, a support 4 is fixedly connected to one end of the head of the spindle head 9, wherein the spindle head 9 and the drive mechanism are fixed by the support 4.
Thirdly, a pressing mechanism is arranged at one end inside the spindle box 9.
Fourthly, a horizontal base is fixedly connected to the bottom of the spindle box 9, wherein a guide rail soft belt 15 is fixedly connected to each of two sides of the top of the horizontal base, and the ram body 10 is slidably connected to the horizontal base through the guide rail soft belt 15.
In the embodiment provided in the present application, the material used for the spindle head 9 may be various.
For example: in some embodiments, the headstock 9 may be made of martensitic stainless steel, which has high strength, high temperature resistance and low wear resistance, and this makes the device more durable than other general metals.
It should be further noted that in the embodiment provided in the present application, the headstock 9 and the drive mechanism are fixed by the support 4.
In addition, it should be noted that, in the embodiment provided by the present application, the driving mechanism includes a servo motor 1 and a planetary reduction gearbox 2, the servo motor 1 is fixed at the top end of the planetary reduction gearbox 2, and the output end of the servo motor 1 is fixed with one end of a speed change gear set which is rotatable inside the planetary reduction gearbox 2.
It should also be noted that, in the embodiments provided in the present application, the mechanical device in the driving mechanism may be various in implementation.
For example: in some embodiments, the servo motor 1 in the driving mechanism may be a high-power gear reduction motor, wherein it should be further explained that the high-power gear reduction motor has the advantages of strong overload bearing capability, space saving and high energy saving, which makes the device more effective in reducing energy consumption in practical use.
It should be further noted that, in the embodiment provided by the present application, the other end of the speed change gear set is fixedly connected with the planetary roller screw 5, one end of the planetary roller screw 5 is rotatably connected with the bottom of the main spindle box 9, and the output mechanism is rotatably screwed on the outside of the planetary roller screw 5.
It should be emphasized that, in the embodiment provided by the present application, the output mechanism includes a fixed block, one side of the fixed block is fixed to the inner wall of one end of the main spindle box 9, two ends of the other side of the fixed block are respectively fixedly connected with a bendable double-deflection plate 7,
the middle part between two double-deflection plates 7 is fixed through a connecting shaft 6, the inside of the connecting shaft 6 is in rotary screw connection with the outside of the planetary roller screw 5, and one end between the two double-deflection plates 7 is clamped with a ram body 10.
In addition, it should be noted that one end of the inner side of each of the two double-deflection plates 7 is fixedly connected with a linear guide rail 12, a fixed slide block 11 and a movable slide block 8 are respectively arranged inside each of the two linear guide rails 12, the fixed slide blocks 11 are fixed on two sides of the front end of the ram body 10, and the movable slide blocks 8 are fixed on two sides of the rear end of each of the double-deflection plates 7.
It should be noted that, in the embodiment provided by the present application, when the ram body 10 is specifically implemented, the servo motor 1 is controlled to operate, so that the speed change gear set drives the planetary roller screw 5 to rotate, the planetary roller screw 5 drives the coupling shaft 6 to move when rotating, (it should be emphasized that the movement of the coupling shaft 6 is implemented according to the principle of screw transmission, which is the prior art, and thus is not specifically described), the coupling shaft 6 pulls the double-deflection plate 7 to move together when moving, because one end of the double-deflection plate 7 is fixed to the fixed block, the double-deflection plate 7 deflects downward when receiving the pulling force of the coupling shaft 6, and at this time, the linear guide 12 arranged at one end of the double-deflection plate 7 also drives the ram body 10 to deflect.
It should be further noted that, in the embodiment provided in the present application, the absolute value type displacement meter 3 is installed inside the main spindle box 9, and the absolute value type displacement meter 3 and the two fixed sliders 11 are located at one end of the cylinder, it should be emphasized that the absolute value type displacement meter 3 is used to detect the compensation amount in real time, and it establishes the relationship between the ram extension amount and the compensation amount by actually detecting the ram front end precision, so as to implement the servo instant compensation of the ram operation precision.
It should be noted that, in the embodiment provided in the present application, one side of the fixing block is fixedly connected with a stable top rubber, two ends of the stable top rubber are rotatably connected with fixing bolts, and the stable top rubber is respectively fixed to one end of the two double-deflection plates 7 through the fixing bolts.
It is emphasized that in the embodiments provided in this application, the stabilizing cap acts to stabilize the planetary reduction gearbox 2.
It should be further noted that the bottom of the fixed block is fixedly connected with an extension block, and the bottom of the extension block is fixed with the bottom end inside the main spindle box 9.
It should be emphasized that, in the embodiment provided in the present application, the pressing mechanism includes a rotating motor, a base of the rotating motor is fixedly installed at the top end of one side of the main spindle box 9, an output end of the rotating motor is fixedly connected with a rotating shaft penetrating through the inside of the main spindle box 9, and one end of the rotating shaft is rotatably connected with the top end of the other side of the main spindle box 9.
It is emphasized that the embodiments provided herein may be implemented with a variety of mechanical arrangements within the stitching mechanism.
For example: in some embodiments, the rotating motor in the pressing mechanism may be a parallel-axis helical gear reduction motor, and it should be emphasized that the parallel-axis helical gear reduction motor has the advantages of strong overload bearing capability, space saving and high energy saving, so that the device can reduce the energy consumption more effectively in practical use.
It should further be explained that, in the embodiment that this application provided, the outside fixedly connected with stopper of axis of rotation, the screw thread of equidirectional is seted up respectively at the outside both ends of axis of rotation, and the screw thread of two equidirectionals outwards extends with the stopper starting point.
In addition, it should be noted that, in the embodiment provided by the present application, the two ends outside the rotating shaft are connected with the pressing plates by screw threads, the pressing plates are divided into an upper pressing plate 13 and a lower pressing plate 14, the two ends at the top of the upper pressing plate 13 are respectively and fixedly connected with the connecting shaft, and the top end of the connecting shaft is slidably connected with the top end inside the spindle box 9.
It should be emphasized that in the embodiment provided by the present application, the coupling shaft 6 moves up and down by the rotation of the servo motor 1, because the coupling shaft 6 is coupled with the rear end of the double deflection plate 7, and the front end of the double deflection plate 7 is fixed on the main spindle box 9, when the coupling shaft 6 moves up and down, the double deflection plate 7 will also swing up and down.
In addition, the ram body 10, the front end of the linear guide rail 12, the fixed slide block 11 and the front end of the double-deflection plate 7 are uniformly fixed on the main spindle box 9, the movable slide block 8 is fixed at the rear end of the double-deflection plate 7, when the double-deflection plate 7 swings up and down, the movable slide block 8 also moves up and down, so that the ram body 10 and the fixed slide block 11 are driven to swing at a small angle, in addition, the compensation quantity is detected in real time by installing the 3 absolute value type displacement meters 3 on the main spindle box 9, the precision of the front end of the ram can be actually detected, the relation between the ram extension quantity and the compensation quantity is established, and the servo instant compensation of the ram operation precision is realized.
It should be noted that, by setting the precision compensation effect verified by the embodiment, the operation straightness of the Z-axis of the horizontal ram on the full stroke is within 0.02mm, and the hydraulic compensation precision of the horizontal ram is improved by more than 50%.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments 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 servo compensation mechanism of horizontal ram running accuracy, includes headstock (9), its characterized in that: one end of the top of the spindle box (9) is fixedly connected with a driving mechanism communicated with the inside of the spindle box;
the driving mechanism comprises a servo motor (1) and a planetary reduction gearbox (2), the servo motor (1) is fixed at the top end of the planetary reduction gearbox (2), and the output end of the servo motor (1) is fixed with one end of a rotatable speed change gear set in the planetary reduction gearbox (2);
the other end of the speed change gear set is fixedly connected with a planetary roller screw (5), one end of the planetary roller screw (5) is rotationally connected with the bottom of the main shaft box (9), and the outer part of the planetary roller screw (5) is rotationally screwed with an output mechanism;
the output mechanism comprises a fixed block, one side of the fixed block is fixed with the inner wall of one end of a main shaft box (9), two ends of the other side of the fixed block are respectively and fixedly connected with a bendable double-deflection plate (7),
the middle part between the two double-deflection plates (7) is fixed through a connecting shaft (6), the inner part of the connecting shaft (6) is in rotary screw connection with the outer part of the planetary roller screw (5), and one end between the two double-deflection plates (7) is clamped with a ram body (10).
2. The servo compensation mechanism for the running precision of the horizontal ram as claimed in claim 1, wherein: one end of the inner side of each of the two double-deflection plates (7) is fixedly connected with a linear guide rail (12), a fixed sliding block (11) and a movable sliding block (8) are arranged inside each of the two linear guide rails (12), the fixed sliding blocks (11) are fixed on two sides of the front end of the ram body (10), and the movable sliding blocks (8) are fixed on two sides of the rear end of each of the double-deflection plates (7).
3. The servo compensation mechanism for the operation accuracy of the horizontal ram as claimed in claim 2, wherein: the spindle box (9) is internally provided with an absolute value type displacement meter (3), and the absolute value type displacement meter (3) and the two fixed sliding blocks (11) are arranged at one end of the cylinder.
4. The servo compensation mechanism for the running precision of the horizontal ram as claimed in claim 1, wherein: one side of the fixed block is fixedly connected with a stable top rubber, two ends of the stable top rubber are rotatably connected with fixing bolts, and the stable top rubber is fixed with one end of each of the two double-deflection plates (7) through the fixing bolts;
the bottom of the fixed block is fixedly connected with an extension block, and the bottom of the extension block is fixed with the bottom end inside the spindle box (9).
5. The servo compensation mechanism for the running precision of the horizontal ram as claimed in claim 1, wherein: the ram is characterized in that a support (4) is fixedly connected to one end of the top of the spindle box (9), the spindle box (9) and the driving mechanism are fixed through the support (4), a horizontal base is fixedly connected to the bottom of the spindle box (9), guide rail soft belts (15) are fixedly connected to two sides of the top of the horizontal base respectively, and the ram body (10) is connected with the horizontal base in a sliding mode through the guide rail soft belts (15).
6. The servo compensation mechanism for the running precision of the horizontal ram as claimed in claim 1, wherein: a pressing mechanism is arranged at one end inside the spindle box (9), the pressing mechanism comprises a rotating motor, a base of the rotating motor is fixedly installed at the top end of one side of the spindle box (9), the output end of the rotating motor is fixedly connected with a rotating shaft penetrating through the inside of the spindle box (9), and one end of the rotating shaft is rotatably connected with the top end of the other side of the spindle box (9);
the outside fixedly connected with stopper of axis of rotation, the screw thread of equidirectional is seted up respectively at the outside both ends of axis of rotation, and the screw thread of two equidirectionals outwards extends with the stopper starting point.
7. The servo compensation mechanism for the running precision of the horizontal ram as claimed in claim 1, wherein: the outside both ends of axis of rotation have the pressfitting board through the screw thread rotation spiro union, and the pressfitting board divide into top board (13) and holding down plate (14), and the both ends at top board (13) top are fixedly connected with connecting axle respectively, the top of connecting axle with the inside top looks sliding connection of headstock (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220234019.2U CN216858248U (en) | 2022-01-28 | 2022-01-28 | Servo compensation mechanism of horizontal ram operation precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220234019.2U CN216858248U (en) | 2022-01-28 | 2022-01-28 | Servo compensation mechanism of horizontal ram operation precision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216858248U true CN216858248U (en) | 2022-07-01 |
Family
ID=82152660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220234019.2U Active CN216858248U (en) | 2022-01-28 | 2022-01-28 | Servo compensation mechanism of horizontal ram operation precision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216858248U (en) |
-
2022
- 2022-01-28 CN CN202220234019.2U patent/CN216858248U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110657987A (en) | High-speed axial loading test device for ball screw pair | |
| CN101788043A (en) | Toggle lever pressure transmission mechanism | |
| CN207900282U (en) | A kind of semi-automatic chamfering drilling machine | |
| CN201530140U (en) | Diagonal tension driven connecting rod pressure transmission mechanism | |
| CN216858248U (en) | Servo compensation mechanism of horizontal ram operation precision | |
| CN201687906U (en) | Toggle rod pressure transmission mechanism and pressure machine or injection molding machine comprising same | |
| CN101799065A (en) | Multi-link pressure drive mechanism | |
| CN108177366B (en) | Compensation device for bottom dead center position of sliding block | |
| CN215967658U (en) | Feed mechanism for chipless cutting machine | |
| CN210513693U (en) | High-speed axial loading test device for ball screw pair | |
| CN210358659U (en) | High-speed heavy-load full-electric servo numerical control bending machine | |
| CN210358660U (en) | Multi-degree-of-freedom mechanical full-electric servo numerical control synchronous bending machine | |
| CN111634688B (en) | Electric cylinder lifting device and ceramic tile conveying device | |
| CN212634370U (en) | Precise positioning drilling mechanism for precise device | |
| CN207787351U (en) | A kind of Dual-Servo Motor control back stop drive mechanism | |
| CN201714930U (en) | Multi-connecting-rod pressure transmission mechanism and press machine or injection molding machine comprising same | |
| CN220049458U (en) | Guide and guard moving mechanism of short stress line rolling mill | |
| CN217700877U (en) | Double-acting press | |
| CN201687907U (en) | Middle connecting plate pressure transmission mechanism | |
| CN207103490U (en) | A kind of bikini straightener | |
| CN205937698U (en) | Quick drive mechanism of car glove box welding equipment | |
| CN219045561U (en) | Adjustable turbine speed reducer | |
| CN218108923U (en) | Lead screw installation device | |
| CN221065142U (en) | Cylinder barrel assembly equipment | |
| CN220745172U (en) | Rotatable gantry mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |