Vertical air floatation guide rail

Abstract

The utility model discloses a vertical air floating guide rail which comprises a base, a guide rail and a sliding table are arranged on the base, the sliding table slides along a straight line relative to the guide rail, and a linear driving element used for driving the sliding table to move along the straight line relative to the guide rail is arranged on the base or the guide rail. The left side and the right side of the base are each provided with a balance air cylinder, and air cylinder shafts of the balance air cylinders are fixedly connected with the sliding table. In actual application, the two balance cylinders support the sliding table to move, so that the stability of the sliding table in the linear movement process can be restrained through the left balance cylinder and the right balance cylinder, and the problems of shaking and unbalance of the sliding table caused by gas factors are solved. In addition, the balance cylinder can counteract the gravity of the sliding table, so that the problem of heating of the motor can be greatly reduced.

Description

Technical Field

[0001] The utility model relates to a vertical air-floating guide rail. Background Art

[0002] Prior art, such as the Chinese invention patent application patent document, publication number CN116608208A, discloses a high-precision air-floating guide rail, whose technical solution is to include a base, a sleeve arranged on the base, and a movable screw arranged along the length direction of the base and used to drive the sleeve to move, the sleeve is covered on the outer side of the base, a gap is left between the side wall of the sleeve close to the base and the base, an air duct for gas flow is provided in the sleeve, an air inlet connected to the air duct is opened on the side wall of the sleeve, and a plurality of air outlets connected to the air duct are opened on the side wall of the sleeve close to the base.

[0003] Based on the above, in the existing air-floating guide rail, the slide forms an air film between the slide and the guide rail under the action of gas floating, and slides relative to the guide rail under the action of gas. The problem with this air-floating guide structure is that when the air pressure is unstable, it is easy to cause the slide to be unbalanced, especially when used vertically. When the air pressure of each air-floating space is different, the slide will shake and become unbalanced, affecting the use, which needs further improvement. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a vertical air-floating guide rail which adopts two synchronously moving left and right balancing cylinders to ensure the moving stability of the slide.

[0005] A vertical air-floating guide rail designed for this purpose includes a base, on which a guide rail and a slide are arranged. The slide is arranged to slide in a straight line relative to the guide rail. A linear driving element for driving the slide to move in a straight line relative to the guide rail is arranged on the base or the guide rail. Balance cylinders are respectively arranged on the left and right sides of the base, and the cylinder shaft of the balance cylinder is fixedly connected to the slide.

[0006] Preferably, a mounting seat is provided on the base, the cylinder shaft is fixedly provided on the mounting seat, a connecting seat is fixedly provided on the slide, and the connecting seat is fixedly connected to the cylinder shaft.

[0007] Preferably, slide rail spaces are respectively provided on the left and right sides of the slide table, guide parts are provided on the left and right sides of the guide rails, the guide parts extend into the slide rail spaces, an air flotation space is formed between the slide table and the slide rail space, and an air duct connected to the air flotation space for air supply is provided on the slide table.

[0008] Preferably, the slide comprises a base, side panels arranged on the left and right sides of the base, and a bottom plate connected to the lower end surfaces of the side panels;

[0009] The base, side plates and bottom plate are arranged to form a slide rail space with an opening on one side;

[0010] An air flotation space is provided on the inner wall of each side of the slide rail space.

[0011] Preferably, a porous graphite sheet is installed in the air flotation space, and an air film gap is formed between the porous graphite sheet and the guide portion;

[0012] The gas is input into the air film gap through the air passage, the air flotation space and the holes of the porous graphite sheet to realize air flotation.

[0013] Compared with the prior art, the utility model has balancing cylinders disposed on the left and right sides of the base, respectively, and the cylinder shafts of the balancing cylinders are fixedly connected to the slide. Two balancing cylinders that move synchronously on the left and right sides are used. In actual applications, the two balancing cylinders support the movement of the slide, so that the stability of the slide in the linear movement process can be constrained by the two balancing cylinders on the left and right sides, avoiding the problem of shaking and imbalance of the slide caused by gas factors. In addition, since the balancing cylinder can offset the gravity of the slide, the problem of motor heating can be greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 3 It is a schematic diagram of the planar structure of the utility model. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] See also Figure 1-Figure 3 A vertical air-floating guide rail includes a base 10, on which a guide rail 20 and a slide 30 are arranged. The slide 30 is arranged to slide in a straight line relative to the guide rail 20. A linear driving element 40 is arranged on the base 10 or the guide rail 20 for driving the slide 30 to move in a straight line relative to the guide rail 20. A balancing cylinder 60 is respectively arranged on the left and right sides of the base 10, and a cylinder shaft 600 of the balancing cylinder 60 is fixedly connected to the slide 30.

[0019] The two balance cylinders move synchronously with the linear drive element. In actual applications, the two balance cylinders support the movement of the slide table, so that the stability of the slide table during linear movement can be constrained by the left and right balance cylinders, avoiding problems such as shaking and imbalance of the slide table caused by gas factors. In addition, since the balance cylinders can offset the gravity of the slide table, the problem of motor overheating can be greatly reduced.

[0020] Further, the linear drive element 40 adopts a linear motor.

[0021] See Figure 2 , an installation seat 610 is provided on the base 10, the cylinder shaft 600 is fixedly arranged on the installation seat 610, a connecting seat 630 is fixedly arranged on the slide table 30, and the connecting seat 630 is fixedly connected to the cylinder shaft 600.

[0022] See Figure 1 , slide spaces 300 are respectively arranged on the left and right sides of the slide table 30, guiding parts 210 are arranged on the left and right sides of the guide rail 20, the guiding parts 210 extend into the slide spaces 300, an air floating space 310 is formed between the slide table 30 and the slide spaces 300, and an air duct 320 communicating with the air floating space 310 for air supply is arranged on the slide table 30.

[0023] An external air supply device supplies air to the air duct 320, and the air flow enters the air floating space 310 to make the slide table 30 float on the left and right guiding parts 210.

[0024] See Figure 1 , the slide table 30 includes a base 301, side plates 302 arranged on the left and right sides of the base 301, and a bottom plate 303 connected to the lower end surfaces of the side plates 302; the base 301, the side plates 302, and the bottom plate 303 enclose to form a slide space 300 with one side open, and an air floating space 310 is arranged on each inner wall of the slide space 300.

[0025] As Figure 1 shown, the slide space 300 has a "C"-shaped structure.

[0026] Further, as Figure 1 shown, in the left slide space 300, the air floating spaces 310 are respectively arranged on the upper inner wall, the left inner wall, and the lower inner wall of the slide space 300. And in the right slide space 300, the air floating spaces 310 are respectively arranged on the upper inner wall, the right inner wall, and the lower inner wall of the slide space 300.

[0027] A porous graphite sheet 50 is installed in the air floating space 310, and an air film gap 510 is formed between the porous graphite sheet 50 and the guiding part 210;

[0028] The gas is input into the air film gap 510 through the air channel 320 , the air flotation space 310 and the holes of the porous graphite sheet 50 to achieve air flotation.

[0029] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and the description are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A vertical air-floating guide rail, comprising a base (10), a guide rail (20) and a slide (30) being arranged on the base (10), the slide (30) being arranged to slide along a straight line relative to the guide rail (20), and a linear drive element (40) being arranged on the base (10) or the guide rail (20) for driving the slide (30) to move along a straight line relative to the guide rail (20), characterized in that: A balancing cylinder (60) is provided on the left and right sides of the base (10), respectively, and a cylinder shaft (600) of the balancing cylinder (60) is fixedly connected to the slide table (30).

2. A vertical air-floating guide rail according to claim 1, characterized in that: The base (10) is provided with a mounting seat (610), the cylinder shaft (600) is fixedly provided on the mounting seat (610), and the slide (30) is fixedly provided with a connecting seat (630), and the connecting seat (630) is fixedly connected to the cylinder shaft (600).

3. A vertical air-floating guide rail according to claim 1, characterized in that: The left and right sides of the slide table (30) are respectively provided with slide rail spaces (300), the left and right sides of the guide rail (20) are provided with guide parts (210), the guide parts (210) extend into the slide rail spaces (300), an air flotation space (310) is formed between the slide table (30) and the slide rail space (300), and an air duct (320) connected with the air flotation space (310) for air supply is provided on the slide table (30).

4. A vertical air-floating guide rail according to claim 3, characterized in that: The slide (30) comprises a base (301), side plates (302) arranged on the left and right sides of the base (301), and a bottom plate (303) connected to the lower end surfaces of the side plates (302); The base (301), the side plate (302) and the bottom plate (303) are arranged to form a slide rail space (300) with an opening on one side; An air floating space (310) is provided on the inner wall of each side of the slide rail space (300).

5. A vertical air-floating guide rail according to claim 3 or 4, characterized in that: A porous graphite sheet (50) is installed in the air flotation space (310), and an air film gap (510) is formed between the porous graphite sheet (50) and the guide portion (210); Gas is input into the air film gap (510) through the air channel (320), the air flotation space (310) and the holes of the porous graphite sheet (50) to achieve air flotation.

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