CN211840161U - Linear rotary motion device with main shaft position adjusting function - Google Patents
Linear rotary motion device with main shaft position adjusting function Download PDFInfo
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- CN211840161U CN211840161U CN202020425260.4U CN202020425260U CN211840161U CN 211840161 U CN211840161 U CN 211840161U CN 202020425260 U CN202020425260 U CN 202020425260U CN 211840161 U CN211840161 U CN 211840161U
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- rotary motion
- motion device
- guide rail
- oil pressure
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Abstract
The utility model provides a rectilinear rotary motion device with main shaft position adjustment function for the adjustment main shaft position, the rectilinear rotary motion device with main shaft position adjustment function embraces including encircleing the main shaft and pressing from both sides, is used for driving the main shaft to embrace and press from both sides along drive assembly, quiet guide rail, a plurality of oil pressure pad of main shaft extending direction motion with the main shaft fixed mutually, and the main shaft is embraced and is equipped with a plurality of inclined planes on pressing from both sides, and quiet guide rail is parallel with a plurality of inclined planes, and a plurality of oil pressure pads support and hold between quiet guide rail and inclined plane, and are a plurality of oil pressure pad independent control, with quiet guide rail with produce the oil film between the inclined plane. The utility model discloses a set up inclined plane and a plurality of oil pressure pad to can adjust the main shaft, reduce the depth of parallelism error of main shaft, can fill up the formation oil film through the oil pressure in addition, reduce the main shaft and embrace the friction between pressing from both sides and the quiet guide rail, thereby make the main shaft embrace anchor clamps and have steady slip effect.
Description
Technical Field
The utility model relates to a straight line rotary motion device with main shaft position adjustment function.
Background
With the rapid development of modern production technology, the requirements of many high-tech products on machining precision are higher and higher, and particularly, the high-precision and complex-shape requirements are applied to mechanical parts in the fields of military industry, national defense, medical treatment, optics and the like, as one of the most important execution components for realizing the machining precision of a machine tool, a main shaft (a milling shaft or a grinding shaft) has important influence on the machining precision except for the rotation precision of the main shaft, and in the process of debugging the machine tool, ensuring the coincidence of the position of the axis of the main shaft and the position of a target axis is also one of the indispensable important influence factors influencing the final machining precision. Particularly, in the processing process of internal and external grinding machine equipment, the error of parallelism of the axis of the grinding shaft relative to the target axis on the horizontal plane and the vertical plane directly influences the roundness and cylindricity of the workpiece.
Meanwhile, abbe error is one of the important error sources affecting the precision of the machine tool, and the influence of the abbe error should be minimized in the machine tool design. Due to the overturning, pitching and deflecting of the guide rail, the generated error is in direct proportion to the vertical distance from the guide rail to the axis of the main shaft according to the Abbe error principle. The method for adjusting the position of the axis applied to the grinding machine at present is mainly realized through manual adjustment. The traditional manual adjustment method mainly adopts a shaft sleeve which is not concentric (eccentric) with the axis of a main shaft to fix the main shaft, and adjusts the relative position of the axis of the main shaft and the target axis in the Y direction by manually rotating the shaft sleeve. The manual method for adjusting the position of the axis needs a lot of time and consumes manpower, and the installation and debugging time of the machine tool equipment is greatly increased. In addition, in the use process of a general machine tool operation user, the phenomenon that the spindle strikes a workpiece due to misoperation exists sometimes, and further the axis of the spindle deviates from the target axis.
The manual adjustment can only realize the adjustment of one degree of freedom of the main shaft axis in the Y direction, and the pitching adjustment of the main shaft axis around the X axis direction can only be ensured by the processing precision of the holding clamp, and cannot be adjusted by other means.
In a traditional machine tool structure, because the guide rail is positioned based on a grating ruler which is positioned on the same horizontal plane, at the moment, because a certain distance exists between the axis of the main shaft and the axis of the guide rail in the vertical direction, and because the guide rail generates straightness errors, rolling, deflection and pitching on a vertical plane and a horizontal plane, Abbe errors are generated, and the machining precision is further influenced.
In view of the above, there is a need to improve the conventional linear rotary motion device with a main shaft position adjusting function to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a straight line rotary motion device with main shaft position control function to solve the manual work of prior art and carry out the main shaft adjustment and consume the manpower, increase installation and debugging time, and adjust the coarse problem.
In order to achieve the above object, the utility model provides a rectilinear rotary motion device with main shaft position adjustment function for adjust the main shaft position, rectilinear rotary motion device with main shaft position adjustment function is including encircleing the main shaft and embracing the clamp mutually with the main shaft, being used for the drive the main shaft is embraced and is pressed from both sides the edge drive assembly, quiet guide rail, a plurality of oil pressure pad of main shaft extending direction motion, the main shaft is embraced and is equipped with a plurality of inclined planes on pressing from both sides, quiet guide rail is parallel with a plurality of the inclined plane is supported and is held to oil pressure pad quiet guide rail with between the inclined plane, it is a plurality of oil pressure pad independent control, with quiet guide rail with produce the oil film between the inclined plane.
As a further improvement of the present invention, the number of the inclined planes is four, four the inclined planes are separately disposed at the upper and lower sides and the left and right sides of the main shaft.
As a further improvement of the present invention, the axis of the spindle is located on the plane where the inclined plane is located or is parallel to the plane where the inclined plane is located.
As a further improvement of the present invention, it is a plurality of the inclined plane is the same as the included angle of the vertical direction.
As a further improvement, the number of the oil pressure pads is eight, follows on every inclined plane the fixed two oil pressure pads that are equipped with of main shaft extending direction.
As a further improvement of the present invention, the linear rotary motion device having the main shaft position adjusting function includes a main body frame, and the driving assembly is fixed to the main body frame.
As a further improvement of the utility model, the static guide rail is fixed on the main body frame.
As a further improvement, the number of the driving components is two, two the driving components are arranged on the left and right sides of the main shaft holding clamp.
As a further improvement of the utility model, the drive assembly is including fixing stator fixing base, fixed connection on the main body frame are in stator magnetic track, active cell connecting piece and active cell coil on the stator fixing base, set up on the stator magnetic track and embrace the opening of pressing from both sides towards the main shaft, the one end of active cell connecting piece with the both sides that press from both sides are embraced to the main shaft, the active cell coil sets up at the other end and stretches into from the opening is protruding the stator magnetic track, with the stator magnetic track interval sets up.
The utility model has the advantages that: the utility model discloses a straight line rotary motion device with main shaft position adjustment function through setting up inclined plane and a plurality of oil pressure pad to can adjust the main shaft, reduce the depth of parallelism error of main shaft, can fill up through the oil pressure in addition and form the oil film, reduce the main shaft and embrace the friction between pressing from both sides and the quiet guide rail, thereby make the main shaft embrace anchor clamps and have steady slip effect. The utility model discloses a rectilinear rotary motion device with main shaft position adjustment function has improved the positioning accuracy of main shaft and the stationarity of operation.
Drawings
Fig. 1 is a schematic perspective view of a linear rotary motion device with a spindle position adjustment function according to the present invention;
fig. 2 is a schematic structural view of the linear rotary motion device with the main shaft position adjusting function of the present invention without installing a main body frame;
fig. 3 is a schematic side view of the linear rotary motion device with the main shaft position adjusting function according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 3, the linear rotary motion device 100 with main shaft position adjustment function of the present invention is used to adjust the position of the main shaft 1, the linear rotary motion device 100 with main shaft position adjustment function includes a main shaft clamp 2 surrounding the main shaft 1 and fixed with the main shaft 1, and a main frame 6, and the main shaft clamp 2 is used to drive the main shaft clamp along the driving component 3, the static guide rail 4, the plurality of oil pressure pads 5 and the main frame 6 moving in the extending direction of the main shaft 1.
The main shaft holding clamp 2 is provided with a plurality of inclined surfaces 21, and the axis of the main shaft 1 is positioned on the plane where the inclined surfaces 21 are positioned or is parallel to the plane where the inclined surfaces 21 are positioned. It should be noted that the plane of the inclined surface 21 intersects with the vertical plane and the horizontal plane
In this embodiment, the number of the inclined planes 21 is four, four inclined planes 21 are respectively arranged on the upper side, the lower side, the left side and the right side of the main shaft 1, the upper middle of the main shaft holding clamp 2 is low, the two sides of the main shaft holding clamp are high, the inclined planes 21 located above extend upwards from the middle to the two sides, and the main shaft holding clamp 2 is symmetrical up and down and symmetrical left and right. So that the included angles of the inclined surfaces 21 and the vertical direction are the same, and the control is convenient.
In other embodiments, the upper portion of the main shaft holding clamp 2 can be set to be high at the middle portion and low at both sides, so that the inclined plane 21 located above extends downwards from the middle portion to both sides, and the purpose of the present invention can be achieved.
The static guide rail 4 is parallel to the plurality of inclined surfaces 21, the plurality of oil pressure pads 5 are abutted between the static guide rail 4 and the inclined surfaces 21, and the plurality of oil pressure pads 5 are independently controlled to generate an oil film between the static guide rail 4 and the inclined surfaces 21.
In this embodiment, the number of the oil pressure pads 5 is eight, and two oil pressure pads 5 are fixedly disposed on each inclined surface 21 along the extending direction of the main shaft 1. Each of the hydraulic pads 5 operates independently to perform adjustment, specifically, the adjustment is performed by supplying oil to the hydraulic pad 5 and adjusting the thickness of the hydraulic pad 5 so that displacement occurs in a direction perpendicular to the inclined surface 21, and the displacement can be divided into an up-down direction and a left-right direction, and position adjustment of the main shaft 1 is performed in both directions. Because two hydraulic pads 5 are arranged on each inclined surface 21 in the front-back direction, and the inclined surfaces 21 and the hydraulic pads 5 are arranged on the left side and the right side of the main shaft 1, the deflection and pitching adjustment of the main shaft 1 can be realized.
Therefore, the main shaft 1 can realize the accurate adjustment of 4 degrees of freedom (up-down direction, left-right direction, pitching and yawing) through the 8 oil pressure pads 5 for independently controlling the pressure, no additional device or tool is needed, the equipment debugging time is greatly saved, and the production efficiency is improved.
The driving assembly 3 is fixed to the main body frame 6. The main body frame 6 surrounds the main shaft clasping clamp 2 from four directions, namely, up, down, left and right.
In this embodiment, the number of the driving assemblies 3 is two, and the two driving assemblies 3 are disposed on the left and right sides of the main shaft clamp 2. Drive assembly 3 is including fixing stator fixing base 31, fixed connection on the main body frame 6 stator magnetic track 32, active cell connecting piece 33 and active cell coil 34 on the stator fixing base 31, set up on the stator magnetic track 32 and embrace the opening that presss from both sides 2 towards the main shaft, and along 1 direction of main shaft and extend, the one end of active cell connecting piece 33 with the main shaft is embraced the both sides of pressing from both sides 2, active cell coil 34 sets up at the other end and stretches into from the opening process in the stator magnetic track 32, with stator magnetic track 32 interval sets up. The rotor coil 34 and the stator magnetic track 32 produce interaction, so that the spindle clamp 2 can be controlled to move back and forth along the extension direction of the spindle 1, the rotor coil 34 and the stator magnetic track 32 are arranged at intervals, zero friction transmission can be achieved, and the movement precision is improved.
The stationary guide 4 is fixed to the main body frame 6. The eight hydraulic pads 5 are filled with hydraulic oil, oil films are formed on two sides of the hydraulic pads 5, the main shaft holding clamp 2 and the static guide rail 4 are separated, so that the main shaft holding clamp 2 is not in contact with the static guide rail 4, the friction force of the main shaft holding clamp 2 relative to the static guide rail 4 is close to zero, the main shaft holding clamp 2 can be guaranteed to have a stable sliding effect, and the positioning precision and the speed stability are improved.
The utility model discloses a straight line rotary motion device 100 with main shaft position adjustment function is through setting up inclined plane 21 and a plurality of oil pressure pad 5 to can adjust main shaft 1, reduce main shaft 1's depth of parallelism error, can fill up 5 formation oil films through the oil pressure in addition, reduce the main shaft and embrace the friction of pressing from both sides between 2 and the quiet guide rail 4, thereby make the main shaft embrace to press from both sides 2 and have steady slip effect. The utility model discloses a rectilinear rotary motion device 100 with main shaft position control function has improved the positioning accuracy of main shaft 1 and the stationarity of operation.
The above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. A linear rotary motion device with a main shaft position adjusting function is used for adjusting the position of a main shaft, and is characterized in that: the linear rotary motion device with the main shaft position adjusting function comprises a main shaft holding clamp surrounding a main shaft and fixed with the main shaft, a driving assembly used for driving the main shaft holding clamp to move along the extension direction of the main shaft, a static guide rail and a plurality of oil pressure pads, wherein the main shaft holding clamp is provided with a plurality of inclined planes, the static guide rail is parallel to the inclined planes, the oil pressure pads are supported and held between the static guide rail and the inclined planes, and the oil pressure pads are independently controlled to generate an oil film between the static guide rail and the inclined planes.
2. The linear rotary motion device having a main shaft position adjustment function according to claim 1, characterized in that: the number of the inclined planes is four, and the four inclined planes are respectively arranged on the upper side, the lower side, the left side and the right side of the main shaft.
3. The linear rotary motion device having a main shaft position adjustment function according to claim 2, wherein: the axis of the main shaft is positioned on the plane of the inclined plane or is parallel to the plane of the inclined plane.
4. The linear rotary motion device having a main shaft position adjustment function according to claim 3, wherein: the included angles between the inclined planes and the vertical direction are the same.
5. The linear rotary motion device having a main shaft position adjustment function according to claim 3, wherein: the number of the oil pressure pads is eight, and two oil pressure pads are fixedly arranged on each inclined plane along the extension direction of the main shaft.
6. The linear rotary motion device having a main shaft position adjustment function according to claim 1, characterized in that: the linear rotary motion device with the main shaft position adjusting function further comprises a main body frame, and the driving assembly is fixed on the main body frame.
7. The linear rotary motion device having a main shaft position adjustment function according to claim 6, wherein: the static guide rail is fixed on the main body frame.
8. The linear rotary motion device having a main shaft position adjustment function according to claim 6, wherein: the number of the driving assemblies is two, and the two driving assemblies are arranged on the left side and the right side of the main shaft holding clamp.
9. The linear rotary motion device having a main shaft position adjustment function according to claim 8, wherein: drive assembly is including fixing stator fixing base, fixed connection on the main body frame stator magnetic track, active cell connecting piece and active cell coil on the stator fixing base, set up on the stator magnetic track towards the opening that the main shaft embraced the clamp, the one end of active cell connecting piece with the both sides that press from both sides are embraced to the main shaft, active cell coil sets up at the other end and stretches into from the opening suddenly the stator magnetic track, with the stator magnetic track interval sets up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020425260.4U CN211840161U (en) | 2020-03-27 | 2020-03-27 | Linear rotary motion device with main shaft position adjusting function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020425260.4U CN211840161U (en) | 2020-03-27 | 2020-03-27 | Linear rotary motion device with main shaft position adjusting function |
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| CN211840161U true CN211840161U (en) | 2020-11-03 |
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| CN202020425260.4U Active CN211840161U (en) | 2020-03-27 | 2020-03-27 | Linear rotary motion device with main shaft position adjusting function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111347069A (en) * | 2020-03-27 | 2020-06-30 | 苏州智润精工科技有限公司 | Linear rotary motion device with main shaft position adjusting function |
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2020
- 2020-03-27 CN CN202020425260.4U patent/CN211840161U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111347069A (en) * | 2020-03-27 | 2020-06-30 | 苏州智润精工科技有限公司 | Linear rotary motion device with main shaft position adjusting function |
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