CN205166401U - Parallelly connected X -Y workstation - Google Patents

Abstract

The utility model discloses a parallel XY workbench, which comprises a moving work platform, a rolling linear guide rail auxiliary mechanism in the X direction, and a rolling linear guide rail auxiliary mechanism in the Y direction; the moving working platform is arranged on the static working platform, and the static working platform Set on the base, the X-direction rolling linear guide rail sub-mechanism and the Y-direction rolling linear guide rail sub-mechanism are respectively arranged on the X-direction guide rail base and the Y-direction guide rail base, the X-direction rolling linear guide rail sub-mechanism, the Y-direction rolling linear guide rail sub-mechanism The linear guide rail auxiliary mechanism is respectively connected with the moving working platform. The utility model enables the dynamic air flotation platform to move in the XY direction in one plane, fully exerts the error homogenization effect of the gas, and improves the movement precision; adopts the air cylinder as the driving part, greatly reduces the cost, and installs the air cylinder on both sides of the dynamic air flotation platform. On the adjacent side, the dynamic air-floating platform moves in the XY direction with the linear movement of the cylinder piston rod; the rolling linear guide rail pair is used as the guiding mechanism, which is simple to guide and easy to control.

Description

A Parallel X-Y Worktable

technical field

The utility model belongs to the technical field of motion platforms, in particular to a parallel X-Y workbench.

Background technique

The parallel platform is a typical parallel mechanism. Compared with the traditional series mechanism, it has the advantages of large structural rigidity, strong bearing capacity, and high positioning accuracy. It is widely used in micro-manipulation robots, biomedicine, precision machining and other fields.

Most of the existing motion platforms are driven by a rotating motor-ball screw and supported by rolling guide rails. The rotating motion of the rotating motor is converted into the linear motion of the X-Y positioning platform through the screw drive link. During this process, there is an intermediate replacement. device, which inevitably has problems such as long links, large inertia and large friction, which affect the accuracy. More advanced motion platforms are driven by linear motors, and the driving linear motors are placed on the base to reduce the inertia of motion, but the manufacturing cost is high, and a weakness of the existing parallel platforms is that they do not fully utilize the error of the gas Homogenization, thus limiting the further improvement of motion accuracy.

In the prior art, the moving platform moves in a straight line in one direction. Even if it moves in two directions, the moving platform does not realize X-Y movement on a common reference plane, so the effect of error averaging is not obvious.

Utility model content

In view of this, the main purpose of the utility model is to provide a parallel X-Y workbench.

In order to achieve the above object, the technical solution of the utility model is achieved in that:

The embodiment of the utility model provides a parallel X-Y workbench, which includes a moving working platform, a rolling linear guide rail sub-mechanism in the X direction, and a rolling linear guide rail sub-mechanism in the Y direction; the moving working platform is set on the static working platform, and The static working platform is set on the base, the X-direction rolling linear guide rail sub-mechanism and the Y-direction rolling linear guide rail sub-mechanism are respectively set on the X-direction guide rail base and the Y-direction guide rail base, and the X-direction rolling linear guide rail sub-mechanism The top surface of the guide rail slider is rigidly connected to one end of the thin plate connector in the X direction, and the other end of the thin plate connector in the X direction is rigidly connected to the rectangular sleeve in the X direction, and the rectangular sleeve in the X direction is non-rigid to the cylinder in the X direction The X-direction cylinder is rigidly connected to the moving working platform through the X-direction bolts; the top surface of the guide rail slider of the Y-direction rolling linear guide rail sub-mechanism is rigidly connected to one end of the Y-direction thin plate connector, and the Y-direction thin plate The other end of the connector is rigidly connected to the rectangular sleeve in the Y direction, the rectangular sleeve in the Y direction is non-rigidly connected to the cylinder in the Y direction, and the cylinder in the Y direction is rigidly connected to the moving working platform through the bolt in the Y direction; the guide rail in the X direction The base and the base of the Y-direction guide rail are respectively equipped with a grating ruler for the X-direction displacement detection device and a grating ruler for the Y-direction displacement detection device;

The cylinder barrel of the X-direction cylinder is nested in the X-direction rectangular sleeve, the upper and lower inner surfaces of the X-direction rectangular sleeve are not in contact with the cylinder outer surface of the X-direction cylinder, and the X-direction rectangular sleeve The remaining two inner surfaces of the barrel are in contact with the outer surface of the cylinder barrel of the X-direction cylinder;

The cylinder barrel of the Y-direction cylinder is nested in the Y-direction rectangular sleeve, the upper and lower inner surfaces of the Y-direction rectangular sleeve are not in contact with the cylinder outer surface of the Y-direction cylinder, and the Y-direction rectangular sleeve The remaining two inner surfaces of the barrel are in contact with the outer surface of the cylinder barrel of the Y direction cylinder.

In the above scheme, the X-direction thin plate connecting piece and the X-direction rolling linear guide rail sub-mechanism are collinear in the X direction, and both are kept perpendicular to the X-direction cylinder body, and the movement direction of the piston rod of the X-direction cylinder is in line with the X-direction vertical.

In the above scheme, the Y-direction thin plate connector and the Y-direction rolling linear guide rail sub-mechanism are collinear in the Y direction, both of which are perpendicular to the Y-direction cylinder body, and the movement direction of the piston rod of the Y-direction cylinder is in line with the Y-direction vertical.

In the above solution, the grating ruler of the X-direction displacement detection device and the X-direction rolling linear guide rail sub-mechanism are kept parallel in the X direction, and the grating reading head of the X-direction displacement detection device grating ruler and the X-direction rolling linear guide rail sub-mechanism The side of the guide rail slider is rigidly connected; the X-direction guide rail base is rigidly connected and fixed on the base.

In the above solution, the grating ruler of the Y-direction displacement detection device and the Y-direction rolling linear guide rail sub-mechanism are kept parallel in the Y direction, and the grating reading head of the Y-direction displacement detection device grating ruler and the Y-direction rolling linear guide rail sub-mechanism The side of the guide rail slider is rigidly connected; the Y direction guide rail base is rigidly connected and fixed on the base.

In the above solution, the X-direction cylinder and the Y-direction cylinder are respectively rigidly connected to the adjacent two sides of the movable working platform, and the cylinder body is kept parallel to the connected surfaces.

Compared with the prior art, the utility model has the beneficial effects:

The moving air flotation platform of the utility model can move in the X-Y direction on a common reference plane, so the error averaging effect of the gas is relatively obvious, that is to say, the moving air flotation platform moving on a common reference plane can significantly improve the error uniformity. The effect of the homogenization of the error of the gas is fully exerted, and the accuracy of the movement is improved.

The utility model adopts the cylinder as the driving part, which greatly reduces the cost, and the cylinder is installed on two adjacent sides of the dynamic air-floating platform, and the dynamic air-floating platform moves in the X-Y direction with the linear movement of the piston rod of the cylinder; the rolling linear guide rail pair is used as the guide Mechanism, simple guide, easy to control.

The utility model eliminates the interference force in other directions of the dynamic working air-floating platform, fully improves the movement precision of the dynamic working air-floating platform, and realizes high-precision operation.

Description of drawings

Fig. 1 provides the structural representation of a kind of parallel X-Y workbench for the utility model embodiment;

Fig. 2 is a schematic top view structure diagram of a parallel X-Y workbench provided by an embodiment of the utility model;

Fig. 3 is a schematic structural view of the driving part in the X direction of a parallel X-Y workbench provided by the embodiment of the utility model;

Fig. 4 provides a layout in the Y direction and the X direction of a parallel X-Y workbench according to the embodiment of the present invention.

detailed description

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

The embodiment of the utility model provides a parallel X-Y workbench, as shown in Figures 1 and 2, the workbench includes a moving work platform 3, a rolling linear guide rail sub-mechanism 13 in the X direction, and a rolling linear guide rail sub-mechanism 10 in the Y direction; The moving working platform 3 is set on the static working platform 2 and the corresponding sides are parallel to each other. The static working platform 2 is set on the base 1 and the corresponding sides are parallel to each other. The guide rail sub-mechanism 10 is respectively arranged on the X-direction guide rail base 11 and the Y-direction guide rail base 9, and the top surface of the guide rail slider of the X-direction rolling linear guide rail sub-mechanism 13 is rigidly connected to one end of the X-direction thin plate connector 14, so that The other end of the X-direction thin plate connector 14 is rigidly connected to the X-direction rectangular sleeve 15, and the X-direction rectangular sleeve 15 is non-rigidly connected to the X-direction cylinder 16. The working platform 3 is rigidly connected; the top surface of the guide rail slider of the Y-direction rolling linear guide rail auxiliary mechanism 10 is rigidly connected to one end of the Y-direction thin-plate connector 7, and the other end of the Y-direction thin-plate connector 7 is connected to the Y-direction rectangular The sleeve 4 is rigidly connected, the Y-direction rectangular sleeve 4 is non-rigidly connected to the Y-direction cylinder 5, and the Y-direction cylinder 5 is rigidly connected to the moving working platform 3 through the Y-direction bolt 6; the X-direction guide rail base 11 and The grating scale 12 of the X-direction displacement detection device and the grating scale 8 of the Y-direction displacement detection device are respectively arranged on the Y-direction guide rail base 9 .

The X-direction thin plate connector 14 is collinear with the X-direction rolling linear guide rail sub-mechanism 13 in the X direction, and they are all kept perpendicular to the cylinder body of the X-direction cylinder 16. vertical.

The connection state of the components in the Y direction and the X direction is the same. On the whole, the Y direction and the X direction form a layout as shown in FIG. 4 .

The thin plate connector 7 in the Y direction and the rolling linear guide rail sub-mechanism 10 in the Y direction are collinear in the Y direction, and they are all kept perpendicular to the cylinder body of the Y direction cylinder 5, and the moving direction of the piston rod of the Y direction cylinder 5 is the same as vertical.

The grating ruler 12 of the X-direction displacement detection device and the X-direction rolling linear guide rail sub-mechanism 13 are kept parallel in the X direction, and the grating reading head of the X-direction displacement detection device grating ruler 12 and the X-direction rolling linear guide rail sub-mechanism 13 The side of the guide rail slider is rigidly connected; the X-direction guide rail base 11 is rigidly connected and fixed on the base 1 .

The grating ruler 8 of the Y-direction displacement detection device and the Y-direction rolling linear guide rail sub-mechanism 10 are kept parallel in the Y direction, and the grating reading head of the Y-direction displacement detection device grating ruler 8 and the Y-direction rolling linear guide rail sub-mechanism 10 The side of the guide rail slider is rigidly connected; the Y-direction guide rail base 9 is rigidly connected and fixed on the base 1 .

The X-direction air cylinder 16 and the Y-direction air cylinder 5 are respectively rigidly connected to the adjacent two sides of the movable working platform 3, and the cylinder body and the connected surfaces maintain a parallel relationship.

As shown in Figure 3, the cylinder barrel of the X-direction cylinder 16 is nested in the X-direction rectangular sleeve 15, and the upper and lower inner surfaces of the X-direction rectangular sleeve 15 are all connected to the outside of the cylinder barrel of the X-direction cylinder 16. There is no surface contact, and the other two inner surfaces of the rectangular sleeve 15 in the X direction are in contact with the outer surface of the cylinder barrel of the cylinder 16 in the X direction.

The cylinder barrel of the Y-direction cylinder 5 is nested in the Y-direction rectangular sleeve 4, and the upper and lower inner surfaces of the Y-direction rectangular sleeve 4 are not in contact with the cylinder outer surface of the Y-direction cylinder 5. The remaining two inner surfaces of the rectangular sleeve 4 in the Y direction are in contact with the outer surface of the cylinder barrel of the cylinder 5 in the Y direction.

Working process of the present utility model:

When the piston rod of the X-direction cylinder 16 reciprocates, it will drive the linear reciprocating motion of the X-direction rolling linear guide rail sub-mechanism 10, so that the dynamic working platform 3 realizes the Y-direction reciprocating movement on the static working platform 2. Similarly, the The reciprocating motion of the Y-direction cylinder 5 and the Y-direction rolling linear guide rail auxiliary mechanism 13 can realize the reciprocating motion of the movable working platform in the X direction.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model.

Claims (6)

1. A parallel X-Y workbench, which includes a moving work platform (3), an X-direction rolling linear guide rail sub-mechanism (13), a Y-direction rolling linear guide rail sub-mechanism (10); the moving work platform (3) Set on the static working platform (2), the static working platform (2) is set on the base (1), the X-direction rolling linear guide rail sub-mechanism (13), the Y-direction rolling linear guide rail sub-mechanism (10) respectively arranged on the X-direction guide rail base (11) and the Y-direction guide rail base (9), the top surface of the guide rail slider of the X-direction rolling linear guide rail sub-mechanism (13) and one end of the X-direction thin plate connector (14) Rigid connection, the other end of the X-direction thin plate connector (14) is rigidly connected to the X-direction rectangular sleeve (15), and the X-direction rectangular sleeve (15) is non-rigidly connected to the X-direction cylinder (16). The X-direction cylinder (16) is rigidly connected to the movable working platform (3) through the X-direction bolt (17); 7) is rigidly connected to one end, and the other end of the Y-direction thin plate connector (7) is rigidly connected to the Y-direction rectangular sleeve (4), and the Y-direction rectangular sleeve (4) is not connected to the Y-direction cylinder (5). Rigid connection, the Y direction cylinder (5) is rigidly connected to the moving working platform (3) through the Y direction bolts (6); the X direction guide rail base (11) and the Y direction guide rail base (9) are respectively provided with X direction Displacement detection device grating ruler (12) and Y direction displacement detection device grating ruler (8); The cylinder barrel of the X-direction cylinder (16) is nested in the X-direction rectangular sleeve (15), and the upper and lower inner surfaces of the X-direction rectangular sleeve (15) are aligned with the cylinder of the X-direction cylinder (16). There is no contact with the outer surface of the cylinder, and the remaining two inner surfaces of the X-direction rectangular sleeve (15) are in contact with the cylinder outer surface of the X-direction cylinder (16); The cylinder barrel of the Y-direction cylinder (5) is nested in the Y-direction rectangular sleeve (4), and the upper and lower inner surfaces of the Y-direction rectangular sleeve (4) are aligned with the cylinder of the Y-direction cylinder (5). There is no contact with the outer surface of the cylinder, and the other two inner surfaces of the Y-direction rectangular sleeve (4) are in contact with the cylinder outer surface of the Y-direction cylinder (5). 2. The parallel X-Y workbench according to claim 1, characterized in that: the X-direction thin plate connector (14) and the X-direction rolling linear guide rail auxiliary mechanism (13) are collinear in the X direction, both of which are aligned with the X direction The cylinder body of the cylinder (16) is kept vertical, and the movement direction of the piston rod of the cylinder (16) in the X direction is perpendicular to the X direction. 3. The parallel X-Y workbench according to claim 1 or 2, characterized in that: the Y-direction thin plate connector (7) and the Y-direction rolling linear guide rail sub-mechanism (10) are collinear in the Y direction, both of which are in line with The cylinder body of the Y-direction cylinder (5) is kept vertical, and the movement direction of the piston rod of the Y-direction cylinder (5) is perpendicular to the Y direction. 4. The parallel X-Y workbench according to claim 3, characterized in that: the grating ruler (12) of the X-direction displacement detection device and the X-direction rolling linear guide rail auxiliary mechanism (13) are kept parallel in the X direction, and the The grating reading head of the grating scale (12) of the X-direction displacement detection device is rigidly connected to the side of the guide rail slider of the X-direction rolling linear guide rail sub-mechanism (13); the X-direction guide rail base (11) is rigidly connected and fixed on the base (1) up. 5. The parallel X-Y workbench according to claim 4, characterized in that: the grating ruler (8) of the Y-direction displacement detection device and the Y-direction rolling linear guide rail sub-mechanism (10) are kept parallel in the Y direction, and the The grating reading head of the Y-direction displacement detection device grating ruler (8) is rigidly connected to the side of the guide rail slider of the Y-direction rolling linear guide rail sub-mechanism (10); the Y-direction guide rail base (9) is rigidly connected and fixed on the base (1) up. 6. The parallel X-Y workbench according to claim 5, characterized in that: the X-direction cylinder (16) and the Y-direction cylinder (5) are respectively rigidly connected to the adjacent two sides of the movable working platform (3), And the cylinder body is kept parallel to the connected surface.