CN219324870U - Beam assembly, moving platform and laser processing equipment - Google Patents

Abstract

The application discloses beam assembly, motion platform and laser processing equipment, including crossbeam, connecting piece and mounting. The cross beam comprises a first end and a second end, wherein the first end is provided with a first hole, the second end is fixedly connected with the second sliding block, and the length direction of the cross beam is set to be a first direction; the connecting piece is used for being fixedly connected with the first sliding block and is provided with a second hole; the fixing piece is used for enabling the first end to be abutted with the connecting piece, and is also used for adjusting the first end and the connecting piecePressure between; the fixing piece comprises a rod body, and the rod body is arranged in the first hole and the second hole in a penetrating way; let the width of the rod body in the first direction be w ₁ Let the aperture of the first hole in the first direction be d ₁ Let the aperture of the second hole in the first direction be d ₂ ，w ₁ Less than d ₁ And d ₂ At least one of (a) and (b). The crossbeam subassembly of this application can improve the upper limit of the frictional force between one end of crossbeam and the slider.

Description

Beam assembly, moving platform and laser processing equipment

Technical Field

The application relates to the technical field of motion platforms, in particular to a beam assembly, a motion platform and laser processing equipment.

Background

With the development of the age, the motion platform is gradually developed towards high speed, high precision and long travel. The motion platform of the gantry structure generally comprises a cross beam, a lathe bed and a driving assembly, wherein the driving assembly generally comprises a driving element, two guide rails and two sliding blocks. The two guide rails are arranged in parallel and fixed on the lathe bed. The two sliding blocks are respectively connected with the two guide rails in a sliding way, and the two ends of the cross beam are respectively connected with the two sliding blocks.

In the motion process of the cross beam, the cross beam is easy to shake and bend and deform due to frequent deceleration, acceleration or direction change, so that the sliding block connected with the cross beam can be pulled, the friction force between the sliding block and the guide rail is increased, the abrasion of the sliding block and the guide rail is increased, and the service life of the sliding block and the guide rail is shortened finally.

In the related art, one end of the cross beam is connected with the corresponding slide block through a sliding mechanism (for example, a mechanism formed by a slide plate and a slide seat with a slide groove), so that the bent cross beam cannot excessively pull the slide block. However, since the sliding mechanism can freely slide, even if the cross beam is slightly deformed, one end of the cross beam moves, which easily reduces the movement accuracy of the processing mechanism (e.g., laser head, drill, etc.) mounted on the cross beam.

Disclosure of Invention

The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, the application provides a beam assembly, which can improve the upper limit of friction force between one end of a beam and a sliding block.

The application also provides a motion platform with the beam assembly.

The application also provides laser processing equipment with the motion platform.

A beam assembly according to an embodiment of the first aspect of the present application, comprising:

the cross beam comprises a first end and a second end, wherein the first end is provided with a first hole, the second end is fixedly connected with a second sliding block, and the length direction of the cross beam is set to be a first direction;

the connecting piece is used for being fixedly connected with the first sliding block and is provided with a second hole;

the fixing piece is used for enabling the first end to be abutted against the connecting piece, and is also used for adjusting pressure between the first end and the connecting piece; the fixing piece comprises a rod body, and the rod body is arranged in the first hole and the second hole in a penetrating manner; let the width of the rod body in the first direction be w ₁ The aperture of the first hole in the first direction is d ₁ The aperture of the second hole in the first direction is d ₂ ，w ₁ Less than d ₁ And d ₂ At least one of (a) and (b).

The beam assembly provided by the embodiment of the application has at least the following beneficial effects: the pressure between the first end and the connecting piece is increased through the fixing piece, so that the sliding friction force between the first end and the connecting piece is increased, and when the cross beam is slightly deformed, the first end of the cross beam cannot move relative to the first sliding block, so that the movement precision of a processing mechanism arranged on the cross beam is improved; in addition, w ₁ Less than d ₁ And d ₂ The rod body can move in the first direction in the first hole and/or the second hole, and when the cross beam is greatly deformed, the first end of the cross beam can move relative to the first sliding block, so that the first sliding block and the second sliding block are protected, and the service lives of the first sliding block and the second sliding block are prolonged.

According to some embodiments of the present application, the fixing member includes a screw, the screw includes a first head and the rod body, the first head is fixedly connected with one end of the rod body, and the first head abuts against a first side surface of the first end away from the connecting member; the rod body is provided with external threads, the second hole is a threaded hole, and the rod body is in threaded fit with the second hole; w (w) ₁ Less than d ₁ 。

According to some embodiments of the application, the first hole is a first waist-shaped hole, and an included angle between a length direction of the first waist-shaped hole and the first direction is smaller than 90 °.

According to some embodiments of the present application, the device further comprises a washer, the washer is provided with a through hole, the rod body is inserted into the through hole, the washer is located between the first head portion and the cross beam, and the washer is provided with a rotating portion for rotating the washer.

According to some embodiments of the application, the rotating portion comprises at least two planes, and any two of the planes are not coplanar.

According to some embodiments of the present application, the fixing member includes a bolt and a nut, the bolt includes a second head and the rod body, the second head is fixedly connected with one end of the rod body, and the second head abuts against the first side surface of the first end far away from the connecting member; the rod body is provided with external threads, the rod body is in threaded fit with the nut, and the nut abuts against the second side surface, away from the first end, of the connecting piece.

According to some embodiments of the application, the first hole and/or the second hole is a second waist-shaped hole, and an included angle between a length direction of the second waist-shaped hole and the first direction is smaller than 90 °.

According to some embodiments of the application, the mass of the upper half of the beam is smaller than the mass of the lower half of the beam.

According to a second aspect of the present application, a motion platform includes:

the beam assembly described above;

a bed body;

a drive assembly comprising a first rail, the first slider, a second rail, the second slider, and a drive element; the first guide rail and the second guide rail are arranged in parallel, and the first guide rail and the second guide rail are both fixed on the lathe bed; the first sliding block is in sliding connection with the first guide rail, and the first sliding block is also fixedly connected with the connecting piece; the second sliding block is in sliding connection with the second guide rail, and is also fixedly connected with the second end; the driving element is used for driving the beam assembly to move along the length direction of the first guide rail.

The motion platform according to the embodiment of the application has at least the following beneficial effects: by using the beam assembly, the motion precision of the beam assembly is improved.

According to an embodiment of the third aspect of the present application, a laser processing apparatus includes:

the motion platform is provided with a motion platform;

the laser head is used for emitting laser and is connected with the cross beam.

The laser processing equipment provided by the embodiment of the application has at least the following beneficial effects: by using the motion platform, the machining precision of the laser head is improved.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

The application is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a perspective view of a beam assembly of an embodiment of the present application;

FIG. 2 is an exploded view of the beam assembly of FIG. 1;

FIG. 3 is a schematic diagram of a laser processing apparatus according to an embodiment of the present application;

FIG. 4 is a schematic view of another embodiment of a mount for the beam assembly of FIG. 1;

fig. 5 is a perspective view of a washer of the mount of the beam assembly of fig. 1.

Reference numerals: beam 100, first end 110, first side 111, first aperture 112, second end 120;

a connector 210, a second hole 211, a second side 212, a second sled 220;

mount 300, screw 310, first head 311, shank 312, bolt 320, second head 321, nut 330;

washer 400, through hole 410, rotation part 420, plane 421;

the drive assembly 500, the first slider 510, the first rail 520, the second slider 530, the second rail 540, the drive element 550;

a bed 600;

laser head 700.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it should be understood that references to orientation descriptions, such as directions of up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

In the description of the present application, the meaning of a number is one or more, the meaning of a number is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of a number above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present application, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present application can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical solution.

In the description of the present application, a description with reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Referring to fig. 1 and 2, a beam assembly according to an embodiment of a first aspect of the present application includes a beam 100, a connector 210, and a fixture 300. The cross beam 100 includes a first end 110 and a second end 120, the first end 110 is provided with a first hole 112 (refer to fig. 2), the second end 120 is fixedly connected to a second slider 530 (refer to fig. 3), and the length direction of the cross beam 100 is set to be a first direction. The connecting piece 210 is used for fixedly connecting with the first slider 510 (refer to fig. 3), and the connecting piece 210 is provided with a second hole 211.

The fixing member 300 is used for abutting the first end 110 against the connecting member 210, and the fixing member 300 is also used for adjusting the pressure between the first end 110 and the connecting member 210. The fixing member 300 includes a rod 312, and the rod 312 is disposed through the first hole 112 and the second hole 211. Let the width of the rod body 312 in the first direction be w ₁ (see FIG. 4), let the first hole 112 have a diameter d in the first direction ₁ Let the aperture of the second hole 211 in the first direction be d ₂ ，w ₁ Less than d ₁ And d ₂ At least one of (a) and (b).

The beam assembly provided by the embodiment of the application has at least the following beneficial effects: by increasing the pressure between the first end 110 and the connecting member 210 by the fixing member 300, the sliding friction between the first end 110 and the connecting member 210 can be increased, and the cross beam 100 can be developedWhen slightly deformed, the first end 110 of the cross beam 100 does not move relative to the first slider 510, thereby facilitating the improvement of the movement accuracy of the machining mechanism mounted on the cross beam 100; in addition, w ₁ Less than d ₁ And d ₂ The rod 312 may move in the first direction in the first hole 112 and/or the second hole 211, and when the beam 100 is greatly deformed, the first end 110 of the beam 100 may move relative to the first slider 510, thereby protecting the first slider 510 and the second slider 530 and extending the service lives of the first slider 510 and the second slider 530.

In addition, during sliding of the first end 110 relative to the connector 210, friction between the first end 110 and the connector 210 may convert kinetic energy of the vibration of the beam 100 into heat, thereby facilitating shortening of the amplitude and time of the vibration of the beam 100.

Specifically, the connecting member 210 includes a first sliding plate, and when the first sliding blocks 510 are provided in plurality, the first sliding plate can be conveniently and fixedly connected with the plurality of first sliding blocks 510. Similarly, the beam assembly further includes a second slide plate 220, and the second slide plate 220 may be fixedly coupled to a plurality of second slide blocks 530.

Referring to fig. 2, in some embodiments of the present application, the fixing member 300 includes a screw 310, where the screw 310 includes a first head 311 and a rod 312, the first head 311 is fixedly connected to one end of the rod 312, and the first head 311 abuts against the first side 111 of the first end 110 away from the connecting member 210; the rod body 312 is provided with external threads, the second hole 211 is a threaded hole, and the rod body 312 is in threaded fit with the second hole 211. w (w) ₁ Less than d ₁ 。

Thus, by rotating the screw 310, the pressure between the first end 110 and the connector 210 may be adjusted. In addition, when the beam 100 is deformed relatively greatly, the screw 310 may also move in the first direction in the first hole 112, thereby reducing the force on the first slider 510 and the second slider 530.

Referring to fig. 2, in a modification of the above embodiment, the first hole 112 is a first waist-shaped hole, and an angle between a length direction of the first waist-shaped hole and the first direction is smaller than 90 °.

The first kidney-shaped aperture may provide space for movement of the screw 310 in a first direction to accommodate movement of the first end 110 of the cross beam 100 in the first direction relative to the first slider 510.

Specifically, when the first end 110 of the cross beam 100 moves in the first direction, since the angle between the length direction of the first waist-shaped hole and the first direction is smaller than 90 °, the length of the first waist-shaped hole has a length component in the first direction, the screw 310 can move in the first direction in the first waist-shaped hole, the first end 110 cannot be blocked by the screw 310, and the first end 110 can move in the first direction relative to the first slider 510.

Specifically, the included angle between the length direction of the first waist-shaped hole and the first direction may be 0 °, 5 °, 10 °, 45 ° or other angles. In the preferred embodiment, the screw 310 moves along the length direction of the first waist-shaped hole, no displacement component exists in the direction perpendicular to the first direction, and the first end 110 of the beam 100 does not move along the direction perpendicular to the first direction, which is beneficial to improving the movement precision of the machining mechanism mounted on the beam 100.

Referring to fig. 2 and 5, in some embodiments of the present application, the beam assembly further includes a washer 400, the washer 400 being provided with a through hole 410, the rod body 312 being inserted in the through hole 410, the washer 400 being located between the first head 311 and the beam 100, the washer 400 being provided with a rotation part 420, the rotation part 420 being used to rotate the washer 400.

Thus, by rotating the washer 400 by the rotating portion 420, the pressure between the first end 110 and the connector 210 can be detected. For example, by providing a torque wrench to rotate the rotating part 420 with a certain torque, if the torque wrench can rotate the washer 400, it indicates that the pressure between the first end 110 and the connection member 210 is proper, and when the cross beam 100 is bent and deformed to a certain extent, the first end 110 of the cross beam 100 can move relative to the connection member 210; if the torque wrench is unable to turn the washer 400, this indicates that the pressure between the first end 110 and the connector 210 is too great, and that the screw 310 needs to be loosened properly to ensure that the first end 110 of the cross beam 100 can move relative to the connector 210 when the cross beam 100 is bent to some extent.

Referring to fig. 5, in a modification of the above embodiment, the rotation part 420 includes at least two planes 421, and any two planes 421 are not coplanar.

At this time, the two flat surfaces 421 may be clamped by a wrench, thereby conveniently rotating the gasket 400. When more planes 421 are provided (e.g., three, four, etc.), the wrench can be conveniently clamped to both planes 421 at different angles, thereby rotating the washer 400.

Specifically, the number of planes 421 may be two, three, four, five, six (refer to fig. 5), or other numbers.

Referring to fig. 4, in some embodiments of the present application, the fixing member 300 includes a bolt 320 and a nut 330, the bolt 320 includes a second head 321 and a rod 312, the second head 321 is fixedly connected to one end of the rod 312, and the second head 321 abuts against the first side 111 of the first end 110 away from the connecting member 210; the rod 312 is provided with external threads, the rod 312 is in threaded engagement with the nut 330, and the nut 330 abuts against the second side 212 of the connecting member 210 away from the first end 110.

Thus, by rotating the bolt 320, the first end 110 and the connector 210 may be clamped by the second head 321 and the nut 330. By tightening the bolt 320, the pressure between the first end 110 and the connector 210 may be increased; by loosening the bolts 320, the pressure between the first end 110 and the connector 210 may be reduced.

Referring to fig. 4, in the modification of the above embodiment, the first hole 112 and/or the second hole 211 are/is a second waist-shaped hole, and an angle between a length direction of the second waist-shaped hole and the first direction is smaller than 90 °.

The second kidney-shaped aperture may provide space for movement of the bolt 320 in a first direction, the bolt 320 not seizing the first end 110 of the cross beam 100 when the first end 110 of the cross beam 100 is moved in the first direction relative to the first slider 510.

Specifically, when the first end 110 of the cross beam 100 moves in the first direction, since the angle between the length direction of the second waist-shaped hole and the first direction is smaller than 90 °, the length of the second waist-shaped hole has a length component in the first direction, the bolt 320 can move in the first direction in the second waist-shaped hole, the first end 110 cannot be blocked by the bolt 320, and the first end 110 can move in the first direction relative to the first slider 510.

Specifically, the included angle between the length direction of the second waist-shaped hole and the first direction may be 0 °, 5 °, 10 °, 45 ° or other angles. In the preferred embodiment, the bolt 320 moves along the length direction of the second waist-shaped hole, and there is no displacement component in the direction perpendicular to the first direction, so that the first end 110 of the beam 100 does not move along the direction perpendicular to the first direction, which is advantageous in improving the movement accuracy of the machining mechanism mounted on the beam 100.

Referring to fig. 1, in some embodiments of the present application, the mass of the upper half of the beam 100 is less than the mass of the lower half of the beam 100.

At this time, the center of gravity of the cross beam 100 is located at the lower half of the cross beam 100, so that the cross beam 100 moves more stably and is not easy to shake.

The upper half and the lower half of the cross beam 100 are distinguished by the height of the cross beam 100, that is, the cross beam 100 located above the midpoint of the height of the cross beam 100 is the upper half of the cross beam 100, and the cross beam 100 located below the midpoint of the height of the cross beam 100 is the lower half of the cross beam 100.

Referring to fig. 3, a motion platform according to an embodiment of the second aspect of the present application includes a beam assembly, a driving assembly 500, and a bed 600. The drive assembly 500 includes a first rail 520, a first slider 510, a second rail 540, a second slider 530, and a drive element 550. The first rail 520 and the second rail 540 are disposed in parallel, and the first rail 520 and the second rail 540 are fixed to the bed 600. The first slider 510 is slidably connected to the first rail 520, and the first slider 510 is also fixedly connected to the connecting member 210. The second slider 530 is slidably coupled to the second rail 540, and the second slider 530 is also fixedly coupled to the second end 120. The drive member 550 is used to drive the beam assembly along the length of the first rail 520.

The motion platform according to the embodiment of the application has at least the following beneficial effects: by using the beam assembly, the motion precision of the beam assembly is improved.

The driving member 550 may include a linear motor whose mover is fixedly coupled to the cross member 100, and whose stator is fixed to the bed 600. After the linear motor is powered on, the beam assembly can be driven to move along the length direction of the first guide rail 520.

In addition, the drive element 550 may also include a motor, a speed reducer, a gear, and a rack. The rack is fixed on the lathe bed 600, and the motor is fixed on the crossbeam 100, and the gear meshes with the rack, and the motor passes through the speed reducer and is connected with gear drive. Thus, when the motor is energized, the beam assembly is driven to move along the length direction of the first rail 520.

A laser processing apparatus according to an embodiment of the third aspect of the present application includes a motion stage and a laser head 700. The laser head 700 is used for emitting laser, and the laser head 700 is connected with the beam 100.

The laser processing equipment provided by the embodiment of the application has at least the following beneficial effects: by using the above-described motion platform, the machining accuracy of the laser head 700 is facilitated to be improved.

The embodiments of the present application have been described in detail above with reference to the accompanying drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present application. Furthermore, embodiments of the present application and features of the embodiments may be combined with each other without conflict.

Claims (10)

1. The crossbeam subassembly, its characterized in that includes:

the cross beam comprises a first end and a second end, wherein the first end is provided with a first hole, the second end is fixedly connected with a second sliding block, and the length direction of the cross beam is set to be a first direction;

the connecting piece is used for being fixedly connected with the first sliding block and is provided with a second hole;

the fixing piece is used for enabling the first end to be abutted against the connecting piece, and is also used for adjusting pressure between the first end and the connecting piece; the fixing piece comprises a rod body, and the rod body is arranged in the first hole and the second hole in a penetrating manner; let the width of the rod body in the first direction be w ₁ The aperture of the first hole in the first direction is d ₁ The aperture of the second hole in the first direction is d ₂ ，w ₁ Less than d ₁ And d ₂ At least one of (a) and (b).

2. The beam assembly of claim 1, wherein the securing member comprises a screw comprising a first head and the shank, the first head being fixedly connected to one end of the shank, the first head abutting a first side of the first end remote from the connecting member; the rod body is provided with external threads, the second hole is a threaded hole, and the rod body is in threaded fit with the second hole; w (w) ₁ Less than d ₁ 。

3. The beam assembly of claim 2, wherein the first aperture is a first kidney-shaped aperture having a length that is less than 90 ° from the first direction.

4. The beam assembly of claim 2, further comprising a washer provided with a through hole, the rod being inserted in the through hole, the washer being located between the first head and the beam, the washer being provided with a rotating portion for rotating the washer.

5. The beam assembly of claim 4 wherein the rotating portion includes at least two planar surfaces and any two of the planar surfaces are non-coplanar.

6. The beam assembly of claim 1, wherein the securing member comprises a bolt and a nut, the bolt comprising a second head and the shank, the second head being fixedly connected to one end of the shank, the second head being in abutment with a first side of the first end remote from the connecting member; the rod body is provided with external threads, the rod body is in threaded fit with the nut, and the nut abuts against the second side surface, away from the first end, of the connecting piece.

7. The beam assembly of claim 6, wherein the first and/or second apertures are second kidney-shaped apertures having a length direction that is less than 90 ° from the first direction.

8. The beam assembly of claim 1, wherein the mass of the upper half of the beam is less than the mass of the lower half of the beam.

9. Motion platform, its characterized in that includes:

the beam assembly of any one of claims 1 to 8;

a bed body;

a drive assembly comprising a first rail, the first slider, a second rail, the second slider, and a drive element; the first guide rail and the second guide rail are arranged in parallel, and the first guide rail and the second guide rail are both fixed on the lathe bed; the first sliding block is in sliding connection with the first guide rail, and the first sliding block is also fixedly connected with the connecting piece; the second sliding block is in sliding connection with the second guide rail, and is also fixedly connected with the second end; the driving element is used for driving the beam assembly to move along the length direction of the first guide rail.

10. Laser processing apparatus, characterized by comprising:

the motion platform of claim 9;

the laser head is used for emitting laser and is connected with the cross beam.

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