Three-coordinate air floatation cushion

Abstract

The utility model belongs to the technical field of air floating cushions, and particularly relates to a three-coordinate air floating cushion which comprises an air floating cushion body, a connector is fixedly installed on the air floating cushion body, a limiting frame is fixedly installed on the connector, a limiting shaft is fixedly arranged in the limiting frame, a cylinder is installed on the limiting shaft in a surrounding mode, and the air floating cushion body is fixedly installed on the cylinder. The cylinder is fixedly connected with a supporting plate, a nut is fixedly installed in the supporting plate, and the interior of the nut is in threaded connection with a positioning bolt. The connecting stability of the three-coordinate air floating cushion air conveying pipeline is effectively improved through the installed supporting plate and the locating bolt, after the connecting pipeline is connected with the connector, the angle of the supporting plate is adjusted through cooperation of the limiting shaft and the cylinder, the locating bolt is driven to move to one side of the limiting clamping groove, the locating bolt is rotated, and the connecting pipeline is connected with the connector. And one end of the positioning bolt enters the limiting clamping groove to limit the position of the connecting pipeline, so that the connecting stability of the connecting pipeline is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air flotation cushions, in particular to a three-coordinate air flotation cushion. Background Art

[0002] The three-coordinate air floating cushion is a key component used in the three-dimensional coordinate measuring machine. Its main function is to realize the precise movement of the measuring machine in three-dimensional space. In the three-dimensional coordinate measuring machine, the air floating cushion is usually used as a part of the guide rail system. The air floating technology is used to reduce the direct contact and friction between the moving parts, ensuring the stability and accuracy of the measuring machine in high-speed movement. The three-coordinate air floating cushion is an important component for realizing precise three-dimensional measurement in the three-dimensional coordinate measuring machine. By reducing the friction and wear during the movement, the high accuracy and high stability of the measuring machine are guaranteed.

[0003] The existing three-coordinate air flotation cushion is connected to the external connection pipe by a connector. The stability of this connection method is not ideal. After being disturbed by external factors, the connector and the pipe for conveying compressed air are easily separated, which undoubtedly has an adverse effect on the normal operation of the three-coordinate air flotation cushion. Utility Model Content

[0004] The utility model aims to provide a three-coordinate air flotation cushion to solve the technical problem of improving the connection stability between a connector and a pipeline proposed in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a three-coordinate air flotation cushion, comprising an air flotation cushion body, a connecting head fixedly installed on the air flotation cushion body, a limiting frame fixedly installed on the connecting head, a limiting axis fixedly arranged inside the limiting frame, a cylinder installed around the limiting axis, the cylinder fixedly connected to a support plate, a nut fixedly installed inside the support plate, and a positioning bolt connected to the internal thread of the nut.

[0006] Preferably, a shunt pipe is provided inside the air flotation cushion body, and exhaust holes are arranged in an array inside the air flotation cushion body.

[0007] Preferably, the exhaust hole is communicated with the shunt pipe.

[0008] Preferably, one end of the positioning bolt is fixedly connected with a knob.

[0009] Preferably, a wear-resistant layer is provided on the top of the air floating cushion body.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model effectively improves the stability of the connection of the three-coordinate air floating cushion gas transmission pipeline by installing the support plate and the positioning bolt. After the connecting pipeline is connected to the connecting head, the angle of the support plate is adjusted by the cooperation of the limiting shaft and the cylinder. When the support plate moves, it will drive the positioning bolt to move to one side of the limiting slot. The positioning bolt is rotated, and the position of the positioning bolt is moved through the nut, so that one end of the positioning bolt enters the limiting slot to limit the position of the connecting pipeline, thereby improving the stability of the connection of the connecting pipeline, avoiding the loose connection between the connecting pipeline and the connecting head, affecting the normal operation of the three-coordinate air floating cushion, and improving the purpose of connection stability;

[0012] 2. The utility model effectively improves the protectiveness of the three-coordinate air flotation cushion by installing a wear-resistant layer. The wear-resistant layer is a ceramic material with good wear resistance, which protects the top of the air flotation cushion body. When the air flotation cushion body supports an object, the wear-resistant layer effectively avoids damage to the top of the air flotation cushion body, thereby increasing its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 For the utility model Figure 1 A schematic diagram of the enlarged structure in the middle;

[0015] Figure 3 This is a schematic diagram of the shunt pipe structure of the utility model.

[0016] In the figure: 1. air flotation cushion body; 2. wear-resistant layer; 3. connector; 4. shunt pipe; 5. exhaust hole; 6. limit frame; 7. limit shaft; 8. cylinder; 9. support plate; 10. nut; 11. positioning bolt; 12. knob. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1 and Figure 2A three-coordinate air floating cushion comprises an air floating cushion body 1, a connector 3 is fixedly installed on the air floating cushion body 1, a limit frame 6 is fixedly installed on the connector 3, a limit axis 7 is fixedly arranged inside the limit frame 6, a cylinder 8 is installed around the limit axis 7, a support plate 9 is fixedly connected to the cylinder 8, a nut 10 is fixedly installed inside the support plate 9, and a positioning bolt 11 is connected to the internal thread of the nut 10. The three-coordinate air floating cushion is a component widely used in three-coordinate measuring machines. Its main function is to provide non-contact, low-friction support and guidance to ensure the high-precision and high-speed operation of the measuring machine. The air floating cushion body 1 is blown out from the exhaust hole 5 in the air floating cushion by compressed air, and an air cushion layer is formed with the assistance of the pressure equalizing groove, forming a non-contact support surface, thereby avoiding the Wear and error caused by contact friction, when the three-coordinate air floating cushion is connected to the pipeline of external compressed air through the connecting head 3, a preset limit slot is provided on the connecting pipe. After the connecting pipe is connected to the connecting head 3, the angle of the support plate 9 is adjusted by the cooperation of the limit shaft 7 and the cylinder 8. When the support plate 9 moves, it will drive the positioning bolt 11 to move to one side of the limit slot. By rotating the positioning bolt 11, the position of the positioning bolt 11 will be moved through the nut 10, and then one end of the positioning bolt 11 will enter the limit slot to limit the position of the connecting pipe, thereby improving the stability of the connection of the connecting pipe, avoiding the loosening and detachment of the connection between the connecting pipe and the connecting head 3, affecting the normal operation of the three-coordinate air floating cushion, and improving the purpose of connection stability.

[0019] See also Figure 3 A shunt pipe 4 is arranged inside the air cushion body 1, and an exhaust hole 5 is arranged in an array inside the air cushion body 1. The shunt pipe 4 is connected with the connector 3. The compressed air from the outside will flow into the inside of the shunt pipe 4 through the connector 3, and the air will be discharged through the exhaust hole 5 to form an air cushion layer, thereby supporting the floating movement of the air cushion body 1.

[0020] See also Figure 3 The exhaust hole 5 is connected to the shunt pipe 4, and the air flows evenly to the inside of the exhaust hole 5 through the shunt pipe 4.

[0021] See also Figure 2 One end of the positioning bolt 11 is fixedly connected to a knob 12, and rotating the knob 12 will drive the positioning bolt 11 to rotate.

[0022] See also Figure 1 A wear-resistant layer 2 is arranged on the top of the air floating cushion body 1. The wear-resistant layer 2 is a ceramic material with good wear resistance to protect the top of the air floating cushion body 1. When the air floating cushion body 1 supports an object, the wear-resistant layer 2 effectively avoids damage to the top of the air floating cushion body 1, thereby increasing the service life.

[0023] Working principle: first, after the connecting pipe is connected to the connecting head 3, the angle of the support plate 9 is adjusted by the cooperation of the limiting shaft 7 and the cylinder 8. When the support plate 9 moves, the positioning bolt 11 will be driven to move to one side of the limiting slot. The positioning bolt 11 will be moved through the nut 10, and then one end of the positioning bolt 11 will enter the limiting slot to limit the position of the connecting pipe, thereby improving the stability of the connection of the connecting pipe, avoiding the loose connection between the connecting pipe and the connecting head 3, affecting the normal operation of the three-coordinate air floating cushion, and improving the purpose of connection stability. The compressed air It enters the inside of the shunt pipe 4 through the connector 3 and is blown out from the exhaust hole 5. With the assistance of the pressure equalizing groove, an air cushion layer is formed, forming a non-contact supporting surface, thereby avoiding wear and error caused by contact friction. When the three-coordinate air floating cushion is connected to the pipeline of external compressed air through the connector 3, a preset limit card groove is arranged on the connecting pipeline. The wear-resistant layer 2 is a ceramic material with good wear resistance, which protects the top of the air floating cushion body 1. When the air floating cushion body 1 supports an object, the wear-resistant layer 2 effectively avoids damage to the top of the air floating cushion body 1, thereby improving the service life.

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A three-coordinate air flotation cushion, comprising an air flotation cushion body (1), characterized in that: A connecting head (3) is fixedly mounted on the air cushion body (1), a limiting frame (6) is fixedly mounted on the connecting head (3), a limiting shaft (7) is fixedly arranged inside the limiting frame (6), a cylinder (8) is mounted around the limiting shaft (7), the cylinder (8) is fixedly connected to a support plate (9), a nut (10) is fixedly mounted inside the support plate (9), and a positioning bolt (11) is threadedly connected to the inside of the nut (10).

2. A three-coordinate air flotation cushion according to claim 1, characterized in that: A shunt pipe (4) is arranged inside the air floating cushion body (1), and exhaust holes (5) are arranged in an array inside the air floating cushion body (1).

3. A three-coordinate air flotation cushion according to claim 2, characterized in that: The exhaust hole (5) is communicated with the shunt pipe (4).

4. A three-coordinate air flotation cushion according to claim 1, characterized in that: One end of the positioning bolt (11) is fixedly connected to a knob (12).

5. A three-coordinate air flotation cushion according to claim 1, characterized in that: A wear-resistant layer (2) is provided on the top of the air floating cushion body (1).

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