CN205817303U - Turntable and the Digit Control Machine Tool of pendulum radius error can be eliminated - Google Patents

Abstract

The utility model relates to the technical field of automation equipment, in particular to a turntable and a numerically controlled machine tool capable of eliminating swing radius errors. The turntable capable of eliminating swing radius errors includes a rotary drive device, a swing drive device, a connecting piece and a workbench. The rotary drive device is installed on the connection It is used to support the worktable and drive the worktable to rotate around the output shaft of the rotary drive device. The swing drive device is connected to the connecting piece and drives the joint to swing around the output shaft of the swing drive device; the swing radius error can be eliminated The turntable of the present invention also includes a swing radius adjusting device, which is installed on the connector and connected with the rotary driving device, and is used for adjusting the vertical distance between the table surface of the workbench and the output shaft of the swing driving device. The utility model can well reduce or eliminate the error of rotation or swing radius existing when the workpiece is processed through the provided swing radius adjusting device, thereby improving the machining accuracy.

Description

Rotary table and CNC machine tool capable of eliminating swing radius error

technical field

The utility model relates to the technical field of automation equipment, in particular to a turntable and a numerically controlled machine tool capable of eliminating swing radius errors.

Background technique

In the CNC machining of mechanical parts, complex space surfaces or other complex feature processing require a five-axis CNC machine tool. The structure of three linear motion axes plus a cradle-type turntable is a typical form of five-axis CNC machine tools. The cradle-type turntable is composed of a swing shaft, a rotation shaft and a worktable. The center lines of the two shafts intersect perpendicularly. The swing shaft drives the rotation shaft to rotate and swing within a certain angle range, and the rotation shaft can generally achieve a continuous rotation of more than 360 degrees. For rotary motion, the table is used to hold the workpiece and is mounted on a rotary axis. But, once the current cradle type turntable is manufactured, the distance between the axis of its swing shaft and the workbench top is fixed.

During the processing, the workpiece is installed on the worktable, and it will swing along with the center of the swing shaft. The distance from the center of the machining point along the rotation axis to the centerline of the swing axis is the swing radius of the machining point. In the case of a certain swing angle, the rotation radius is proportional to the displacement of the processing point. The larger the rotation radius, the greater the displacement of the processing point. During the swing process, there is a positioning error in the swing angle, and the swing also produces a certain amount of vibration. Therefore, the presence of the swing radius amplifies the positioning error and the amount of vibration, resulting in the machining error of the part, and the size of the machining error is proportional to the swing radius. In precision and ultra-precision machining, the swing error caused by the swing radius will have a greater impact on the machining error of the system, especially for workpieces with a large aspect ratio, the swing radius is large, and the resulting error is also relatively large. Big.

Usually, the size of this swing radius is adjusted by the height of the part clamping fixture. If the worktable is lower than the center of the swing axis, the distance from the workpiece to the swing center can be adjusted properly through the clamping fixture, but when the distance from the worktable to the swing center is certain, the adjustable range is also limited; if the worktable is higher than The distance from the center of the swing axis, the clamping fixture will only increase the length of the swing radius. Through the adjustment of the clamping fixture, the position of the center point in the height direction of the workpiece processing range can only be roughly adjusted to the position of the center of the swing axis, and the swing error of the processing point not on the center line cannot be eliminated.

Utility model content

The purpose of the utility model is to provide a turntable and a CNC machine tool that can eliminate the swing radius error, aiming at solving the technical problem that the existing technology cannot reduce or eliminate the rotation and swing radius error of the cradle-type turntable of the CNC machine tool. .

In order to achieve the above object, the technical solution of the utility model is: a turntable that can eliminate the error of the swing radius, including a rotary drive device, a swing drive device, a connecting piece and a workbench, the rotary driving device is installed on the connecting piece and used In order to support the workbench and drive the workbench to rotate around the output shaft of the rotary drive device, the swing drive device is connected to the connecting part and drives the connecting part with the output shaft of the swing drive device The axis swings as the center; the turntable that can eliminate the swing radius error also includes a swing radius adjustment device, the swing radius adjustment device is installed on the connecting piece and connected with the rotary drive device and used to adjust the working table The vertical distance between the table top and the output shaft of the oscillating drive.

Preferably, the connecting piece includes a swing arm and a mounting base fixedly connected to the swing arm at a vertical angle, the swing driving device is drivingly connected to the swing arm, and the swing radius adjusting device is installed on the mounting base. On the base, the rotation driving device is located above the installation base and is drivingly connected with the swing radius adjusting device.

Preferably, the installation base includes a bottom plate and a first side plate and a second side plate respectively extending along two sides of the bottom plate in the same vertical direction as the bottom plate, the bottom plate, the first side plate and the second side plate are fixedly connected with the swing arm, and the swing radius adjusting device is installed on the bottom plate.

Preferably, the swing radius adjustment device includes a driving motor, a screw, a sliding table and a linear slide rail, the sliding table is provided with a threaded hole, the driving motor is fixed on the bottom plate and the output shaft of the driving motor is connected to the The screw mandrel is fixedly connected, the screw mandrel is threadedly connected to the threaded hole, the sliding table is slidably connected to the first side plate and/or the second side plate through the linear slide rail, the The rotary driving device is fixed on the slide table.

Preferably, the linear guide rail includes a linear guide rail and a slider, the linear guide rail is vertically installed on the inner surface of the first side plate and/or the inner surface of the second side plate, and the slider Slidingly matched with the linear guide rail and fixed on the outer surface of the sliding table.

Preferably, the base plate is provided with an escape hole, the driving motor is installed on the bottom of the base plate, and the output shaft of the drive motor extends into the first side plate and the first side plate through the escape hole. between the second side panels.

Preferably, the extension line of the output shaft of the rotary drive device perpendicularly intersects the extension line of the output shaft of the swing drive device.

Preferably, the table top of the workbench is provided with at least one installation hole for cooperating and clamping the workpiece to be processed.

Preferably, the rotary driving device is a servo motor or a stepping motor or a DD motor, and the swing driving device is a servo motor or a stepping motor or a DD motor.

Beneficial effects of the utility model: the utility model can eliminate the swing radius error of the turntable, through the swing radius adjustment device, drive the processing point of the workpiece clamped on the worktable to be close to or away from the axis of the output shaft of the swing drive device There are two ways to adjust the swing radius. One is the center adjustment method of the processing area. According to the height of the workpiece to be processed, in the height direction, first adjust the position of the center of the processing area on the workpiece to be processed. to the axis position of the output shaft of the swing drive device, so that it is not necessary to adjust the swing radius during processing, and it can ensure that the processing points on the workpiece to be processed are concentrated close to the axis position of the output shaft of the swing drive device , so as to achieve a relatively small swing error; the other is the real-time adjustment method. During the processing, according to the position to be processed, the corresponding processing point on the workpiece to be processed is adjusted in real time to the position of the swing drive device in the height direction. At the position where the extension lines of the shaft centers of the output shafts coincide, at this time, the swing radius is zero, and the error caused by the swing is then zero. The turntable that can eliminate the swing radius error of the utility model can well reduce or eliminate the rotation or swing radius error that exists when the workpiece is processed through the provided swing radius adjustment device, so that the workpiece to be processed can be improved. Machining accuracy during machining.

Another technical solution of the utility model is: a numerically controlled machine tool, which includes the above-mentioned turntable that can eliminate swing radius errors.

The CNC machine tool of the present utility model uses the above-mentioned turntable which can reduce or eliminate the rotation or swing radius error existing when the workpiece to be processed is processed, and can improve the processing accuracy when the workpiece to be processed is processed. .

Description of drawings

Fig. 1 is a three-dimensional structural schematic diagram of a turntable capable of eliminating swing radius errors provided by an embodiment of the present invention.

Fig. 2 is an exploded perspective view of the three-dimensional structure of the turntable provided by the embodiment of the present invention, which can eliminate the swing radius error.

Fig. 3 is a cutaway view of the turntable provided by the embodiment of the present invention, which can eliminate the swing radius error.

Reference signs include:

10—rotary drive 11—perforation 20—oscillating drive

30—connecting piece 31—swing arm 32—installation base

40—worktable 41—installation hole 50—swing radius adjustment device

51—drive motor 52—screw rod 53—sliding table

54—linear slide rail 60—part to be processed 321—bottom plate

322—first side plate 323—second side plate 531—threaded hole

532—accommodating cavity 541—linear guide 542—slider

3211—avoid hole.

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to accompanying drawings 1 to 3 are exemplary and are intended to explain the present utility model, but should not be construed as limiting the present utility model.

In describing the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical" , "horizontal", "top", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the present invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, "plurality" means two or more, unless otherwise specifically defined.

In this utility model, unless otherwise specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connection, or integration; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

As shown in Figures 1 to 3, the turntable that can eliminate the swing radius error provided by the embodiment of the utility model includes a rotary drive device 10, a swing drive device 20, a connecting piece 30 and a workbench 40, and the rotary drive device 10 is installed on the connecting piece 30 and used to support the workbench 40 and drive the workbench 40 to rotate around the output shaft of the rotary driving device 10 , the swing driving device 20 is connected to the connecting piece 30 And drive the connecting piece 30 to swing around the output shaft of the swing driving device 20; the turntable that can eliminate the swing radius error also includes a swing radius adjustment device 50, and the swing radius adjustment device 50 is installed on the connection The component 30 is connected with the rotary driving device 10 and is used to adjust the vertical distance between the table surface of the worktable 40 and the output shaft of the swing driving device 20 . Specifically, when the workpiece 60 to be processed is processed, the workpiece 60 to be processed is first clamped on the table surface of the workbench 40, the workpiece 60 to be processed is supported by the workbench 40, and then the swing radius adjusting device 50 is started to work. Adjust the vertical distance between the table top of the workbench 40 and the output shaft of the swing drive device 20 through the swing radius adjustment device 50, thereby realizing the adjustment of the workpiece 60 clamped on the table surface of the workbench 40 and the output shaft of the swing drive device 20 The vertical distance between them can complete the adjustment of the swing radius when the workpiece 60 to be processed is processed, and then start the rotary drive device 10 and the swing drive device 20 to drive the workpiece 60 to rotate and swing, thereby realizing the treatment in three-dimensional space The workpiece 60 is processed; wherein, the rotary drive device 10 can drive the workbench 40 to move clockwise or counterclockwise, and the swing drive device 20 can drive the connecting piece 30 to move clockwise or counterclockwise. , the running directions of the rotary drive device 10 and the swing drive device 20 can be controlled according to the actual needs of the workpiece 60 to be processed.

The turntable that can eliminate the error of the swing radius in the embodiment of the utility model, through the swing radius adjustment device 50, drives the processing point of the workpiece 60 clamped on the workbench 40 to be close to or away from the axis of the output shaft of the swing drive device 20 There are two ways to adjust the swing radius. One is the center adjustment method of the processing area. According to the height of the workpiece 60 to be processed, in the height direction, first adjust the position of the center of the processing area on the workpiece 60 to be processed. Adjust to the axial center position of the output shaft of the swing drive device 20, so that it is not necessary to adjust the swing radius during processing, and it can ensure that the processing points on the workpiece 60 are concentrated close to the output shaft of the swing drive device 20 The position of the axis center, so as to achieve a relatively small swing error; the other is the real-time adjustment method, in the process of processing, according to the position to be processed, the corresponding processing points on the workpiece 60 to be processed are adjusted in real time in the height direction To the position coincident with the extension line of the shaft center of the output shaft of the swing driving device 20, at this time, the swing radius is zero, and the error caused by the swing is then zero.

The turntable that can eliminate the error of the swing radius in the embodiment of the utility model can well reduce or eliminate the error of the rotation or swing radius when the workpiece 60 to be processed is processed through the set swing radius adjustment device 50, so as to improve the The processing accuracy when the workpiece 60 to be processed is processed.

It should be further explained that the swing radius adjusting device 50 in the turntable capable of eliminating swing radius error in the embodiment of the present invention can be adjusted by manual control or by automatic control.

In this embodiment, the rotary drive device 10, the swing drive device 20 and the swing radius adjustment device 50 can perform linkage operations at the same time, and the path trajectory of the control linkage can be realized by software programming with a corresponding algorithm. For example, when the utility model embodiment When the turntable capable of eliminating the swing radius error is applied to a CNC machine tool, the rotary drive device 10, the swing drive device 20 and the swing radius adjustment device 50 can be controlled through PLC or computer software programming on the CNC machine tool.

As shown in FIG. 2 , in this embodiment, the connecting member 30 includes a swing arm 31 and a mounting base 32 fixedly connected to the swing arm 31 at a vertical angle. The swing drive device 20 is connected to the swing arm 31 Driving connection, the swing radius adjustment device 50 is installed on the installation base 32 , the rotation drive device 10 is located above the installation base 32 and is drivingly connected with the swing radius adjustment device 50 . Specifically, the swing arm 31 of the connecting piece 30 is installed and fixed by the swing drive device 20, and swings under the drive of the output shaft of the swing drive device 20, thereby realizing the processing of the first degree of freedom when the workpiece 60 to be processed is processed. The mounting base 32 of the connector 30 is installed and fixed for the swing radius adjustment device 50, to ensure that the swing radius adjustment device 50 can adjust the linear degree of freedom of the rotary drive device 10 and the workbench 40 connected to each other. To reduce or eliminate the vertical distance between the workpiece 60 clamped on the table surface of the workbench 40 and the output shaft of the swing drive 20, that is, to realize the adjustment of the swing radius when the workpiece 60 is processed, so as to realize the The processing of the second degree of freedom when the workpiece 60 is processed; in addition, the rotary drive device 10 connected with the swing drive device 20 is not only installed for the worktable 40, but also can drive the workbench 40 to realize the output of the rotary drive device 10. The axis moves axially as the axis, so as to realize the processing of the third degree of freedom when the workpiece 60 is processed, and can reduce or eliminate the error of the rotation or swing radius when the workpiece 60 is processed. , to improve the processing accuracy of the workpiece 60 to be processed.

As shown in FIGS. 1-3 , in this embodiment, the installation base 32 includes a bottom plate 321 and a first side plate 322 and a first side plate 322 respectively extending along the two sides of the bottom plate 321 in the same vertical direction as the bottom plate 321 . The second side plate 323, the bottom plate 321, the first side plate 322 and the second side plate 323 are all fixedly connected with the swing arm 31, and the swing radius adjusting device 50 is installed on the bottom plate 321 . Specifically, the bottom plate 321 is used for the installation and fixing of the swing radius adjusting device 50, and the first side plate 322 and the second side plate 323 are jointly surrounded by the bottom plate 321 to form a semi-open space, which can be connected with the semi-open space. The swing radius adjustment device 50 drives the rotary drive device 10 connected to the rotary drive and the workbench 40 connected to the rotary drive to play a protective role, preventing foreign objects from touching or colliding with the rotary drive and the workbench 40 on the side, and lifting the work security.

1-3, in this embodiment, the swing radius adjusting device 50 includes a driving motor 51, a screw 52, a sliding table 53 and a linear slide rail 54, and the sliding table 53 is provided with a threaded hole 531, so that The driving motor 51 is fixed on the bottom plate 321 and the output shaft of the driving motor 51 is fixedly connected to the screw rod 52, the screw rod 52 is screwed to the threaded hole 531, and the sliding table 53 passes through the The linear sliding rail 54 is slidably connected to the first side plate 322 and/or the second side plate 323 , and the rotation driving device 10 is fixed on the sliding table 53 . The specific working process of swing radius adjusting device 50 is: drive motor 51 work, the output shaft of drive motor 51 drives the screw mandrel 52 that is fixedly connected with it to rotate, screw mandrel 52 is threadedly connected with the threaded hole 531 that slide table 53 offers, and slide table 53 is slidably connected with the first side plate 322 and/or the second side plate 323 by the linear slide rail 54, so under the rotation of the screw mandrel 52, the sliding table 53 turns the rotary motion of the screw mandrel 52 into the sliding table 53 in a straight line. Linear motion guided by guide rail 541, that is, the drive motor 51 drives the sliding table 53 to realize linear motion, the rotary drive device 10 connected to the slide table 53 also realizes linear motion, and the workbench 40 connected to the rotary drive device 10 also realizes linear motion , that is, the vertical distance between the table surface of the worktable 40 and the output shaft of the swing driving device 20 can be adjusted, thereby realizing the adjustment of the swing radius of the workpiece 60 to be processed, thereby effectively reducing or eliminating the swing when the workpiece 60 to be processed is processed radius error.

As shown in FIG. 2 , in this embodiment, the linear guide rail 54 includes a linear guide rail 541 and a slider 542 , and the linear guide rail 541 is installed vertically on the inner surface of the first side plate 322 and/or on the inner surface of the first side plate 322 . The inner surface of the second side plate 323 , the sliding block 542 is slidingly matched with the linear guide rail 541 and fixed on the outer surface of the sliding table 53 . Specifically, the linear guide rail 541 is fixedly installed on the inner surface of the first side plate 322 and/or the second side plate 323 as a guide, and the state when the linear guide rail 541 is installed is vertical, that is, the linear guide rail 541 and the swing The output shaft of the driving device 20 is in a vertical space intersecting state; the slide block 542 and the linear guide rail 541 are slidably connected, and because the slide block 542 is fixed on the side of the slide table 53, the slide table 53 is movable, and the slide block 542 Under the action of the linear guide rail 541, only the movement in the linear direction can be realized, which indirectly drives the workbench 40 to move linearly.

As shown in FIG. 2 , preferably, there are four linear slide rails 54 , so that two are arranged at intervals on the inner surface of the first side plate 322 , and two are arranged at intervals on the inner surface of the second side plate 323 . Under the guiding action of the linear slide rail 54 to the sliding table 53 , the stability and the sliding precision of the sliding table 53 can be improved.

As shown in FIG. 3 , in this embodiment, the bottom plate 321 is provided with an avoidance hole 3211, the drive motor 51 is mounted on the bottom of the base plate 321, and the output shaft of the drive motor 51 passes through the avoidance hole. The hole 3211 protrudes between the first side plate 322 and the second side plate 323 . Specifically, installing the drive motor 51 on the bottom of the bottom plate 321 can occupy the position of the semi-open space surrounded by the bottom plate 321, the first side plate 322 and the second side plate 323 of the installation base 32. In the case of ensuring that the swing radius can be adjusted, ensure that the semi-open space formed by the bottom plate 321, the first side plate 322 and the second side plate 323 is as close as possible to the rotation drive device 10, the workbench 40 and the workbench 40. The workpiece 60 clamped on the table is protected; similarly, this structural design can reduce the overall volume of the turntable that can eliminate the swing radius error.

Of course, the rotary drive device 10 in this embodiment is also provided with a perforation 11 for the screw mandrel 52 to move, so as to ensure that the screw mandrel 52 has enough space to move, thereby driving the sliding table 53 to perform linear motion; further, the perforation 11 Distributed along the axial direction of the rotary drive device 10 , it can be ensured to match the installation direction of the screw rod 52 .

As shown in FIGS. 2-3 , in addition, the sliding table 53 is also provided with a housing cavity 532, and the rotary driving device 10 can be embedded in the housing cavity 532, so that the gap between the sliding table 53 and the rotary driving device 10 can be strengthened. The stability of the connection; wherein, when the rotary drive device 10 is embedded in the accommodating cavity 532, the rotary drive device 10 forms an interference fit with the inner wall of the accommodating cavity 532, and then combines the fasteners to connect the rotary drive device 10 with the sliding The platform 53 is locked, so that the connected rotary drive device 10 and the sliding platform 53 are very firm and reliable; furthermore, the cylindrical cavity of the accommodating cavity 532 is distributed along the axial direction of the sliding platform 53 .

That is, through the combination of the perforation 11 provided by the rotary driving device 10 and the accommodating cavity 532 provided by the sliding table 53, the connection between the rotary driving device 10 and the sliding table 53 can be made more compact, thereby reducing the cost of the entire turntable that can eliminate the swing radius error. The volume improves the convenience of installation and the flexibility of use of the turntable that can eliminate the swing radius error.

In this embodiment, the extension line of the output shaft of the rotary driving device 10 and the extension line of the output shaft of the swing driving device 20 perpendicularly intersect. Specifically, when the vertical distance between the workbench 40 table top and the output shaft of the swing drive device 20 is adjusted by the swing radius adjusting device 50, due to the difference between the extension line of the output shaft of the rotary drive device 10 and the output shaft of the swing drive device 20 The extension lines intersect vertically. In theory, the corresponding processing point on the workpiece 60 can be adjusted in real time in the height direction to a position coincident with the extension line of the axis of the output shaft of the swing drive 20. At this time, the swing The radius is zero, and the error caused by the swing is zero; that is, the machining accuracy of the workpiece 60 to be processed can be further improved through this structural design.

As shown in FIGS. 2-3 , in this embodiment, the table surface of the workbench 40 is provided with at least one installation hole 41 for cooperating and clamping the workpiece 60 to be processed. Specifically, the installed mounting hole 41 can facilitate the clamping of the workpiece 60 to be processed and strengthen the stability of the connection between the workpiece 60 to be processed and the workbench 40 of the clamping, and reduce the error when the workpiece 60 to be processed is processed. Therefore, higher machining accuracy of the workpiece 60 to be processed can be ensured.

In this embodiment, the rotary driving device 10 is a servo motor, a stepping motor, or a DD motor, and the swing driving device 20 is a servo motor, a stepping motor, or a DD motor. Specifically, according to actual needs, a rotary servo motor or a stepping motor can be used as the rotary driving device 10 , and a rotary servo motor or a stepping motor can be used as the swing driving device 20 .

Of course, the driving motor 51 can also be a servo motor, a stepping motor or a DD motor.

Among them, the DD motor refers to the linear drive motor, and DD is the abbreviation of Direct Driver.

In this embodiment, the swing arm 31, the base plate 321, the first side plate 322 and the second side plate 323 are integrally formed to form an integrally formed connecting piece 30, so that not only can the connecting piece 30 be mass-produced, but also the production rate can be improved. The efficiency can also improve the strength of the overall structure of the connecting piece 30 , so that the stability of the connecting piece 30 is better during use, and the service life of the connecting piece 30 can be extended.

The embodiment of the utility model also provides a numerically controlled machine tool, which includes the above-mentioned turntable capable of eliminating swing radius errors. The numerical control machine tool may be a multi-axis numerical control machine tool, for example, a three-axis numerical control machine tool or a five-axis numerical control machine tool.

The numerical control machine tool of the embodiment of the present utility model uses the above-mentioned turntable that can reduce or eliminate the rotation or swing radius error that exists when the workpiece 60 to be processed is processed, so that the workpiece 60 to be processed can be processed. When the machining accuracy.

To sum up, it can be seen that the utility model has the above-mentioned excellent characteristics, so that it can improve the performance that is not available in the prior art in use, and has practicality, and becomes a product with great practical value.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements or improvements made within the ideas and principles of the present utility model should be included in this utility model. within the scope of protection of utility models.

Claims (10)

1. can eliminate the turntable of pendulum radius error, including rotating driving device, oscillatory gearing mechanism, connector and work Platform, described rotating driving device is installed on described connector and for supporting described workbench and driving described workbench with institute Rotating centered by stating the output shaft of rotating driving device, described oscillatory gearing mechanism is connected with described connector and drives described company Fitting swings centered by the output shaft of described oscillatory gearing mechanism；It is characterized in that: the described pendulum radius error of eliminating Turntable also include pendulum radius adjusting means, described pendulum radius adjusting means be installed on described connector and with described rotation Driving means connect and be used between the table top regulating described workbench with the output shaft of described oscillatory gearing mechanism vertical away from From.

The turntable eliminating pendulum radius error the most according to claim 1, it is characterised in that: described connector includes pendulum Swing arm and angle perpendicular with described swing arm fix the installation pedestal being connected, described oscillatory gearing mechanism and described swing arm Drive connection, described pendulum radius adjusting means is installed on described installation pedestal, and described rotating driving device is positioned at described peace Dress pedestal top and with described pendulum radius adjusting means drive connection.

The turntable eliminating pendulum radius error the most according to claim 2, it is characterised in that: described installation pedestal includes Base plate and respectively along the both sides of described base plate towards extended the first side plate and second of vertical direction same with described base plate Side plate, described base plate, described first side plate and described second side plate are all fixing with described swing arm to be connected, and described pendulum radius is adjusted Regulating device is installed on described base plate.

The turntable eliminating pendulum radius error the most according to claim 3, it is characterised in that: described pendulum radius regulates Device includes driving motor, screw mandrel, sliding stand and line slide rail, and described sliding stand offers screwed hole, and described driving motor is solid Is connected due to output shaft and the described screw mandrel of described base plate and described driving motor is fixing, described screw mandrel and described screwed hole screw thread Connecting, described sliding stand is slidably connected with described first side plate and/or described second side plate by described line slide rail, described rotation Rotary driving device is fixed on described sliding stand.

The turntable eliminating pendulum radius error the most according to claim 4, it is characterised in that: described line slide rail includes Line slideway and slide block, the perpendicular shape of described line slideway is installed on the medial surface of described first side plate and/or described second side The medial surface of plate, described slide block and described line slideway are slidably matched and are fixed on the lateral surface of described sliding stand.

The turntable eliminating pendulum radius error the most according to claim 4, it is characterised in that: described base plate offers to be kept away Emptying aperture, described driving motor is installed on the bottom of described base plate, and the output shaft of described driving motor is stretched through described emptiness avoiding hole Enter between described first side plate and described second side plate.

7. according to the turntable of the eliminated pendulum radius error described in any one of claim 1～6, it is characterised in that: described rotation The extended line of the output shaft of rotary driving device intersects vertically with the extended line of the output shaft of described oscillatory gearing mechanism.

8. according to the turntable of the eliminated pendulum radius error described in any one of claim 1～6, it is characterised in that: described work The table top of station is provided with at least one for the installing hole coordinating clamping workpiece to be added.

9. according to the turntable of the eliminated pendulum radius error described in any one of claim 1～6, it is characterised in that: described rotation Rotary driving device is servomotor or motor or DD motor, described oscillatory gearing mechanism be servomotor or motor or DD motor.

10. Digit Control Machine Tool, it is characterised in that: include turning of the eliminated pendulum radius error described in any one of claim 1～9 Platform.