High-precision seamless splicing type air floating guide rail device

Abstract

The utility model belongs to the technical field of precise mechanical motion control, and particularly relates to a high-precision seamless splicing type air floating guide rail device which comprises a front base and a rear base, the front base and the rear base are connected through a half-thread pin and an insert, inward concave cavities are formed above the front base and the rear base, a sliding plate is arranged above the concave cavities through a sliding assembly, and the front base and the rear base are connected through a bolt. An inner cavity is formed in the sliding plate, a plurality of vertically-through vent holes are formed in the upper portion of the sliding plate, the inner cavity comprises a middle cavity and side cavities, the middle cavity is located in the middle of the inner cavity, the side cavities are located on the two sides of the inner cavity, the inner cavity is communicated with the side cavities, the side cavities are provided with main air conveying pipes, and the upper ends of the main air conveying pipes are communicated with the vent holes. A first-stage air outlet part and a second-stage air outlet part are arranged on the peripheral side of the main air conveying pipe, a third-stage air outlet part is arranged below the main air conveying pipe, and the first-stage air outlet part, the second-stage air outlet part and the third-stage air outlet part extend out of the outer side wall of the sliding plate. An air buoyancy field is constructed through the three-stage air outlet parts, non-contact sliding of the sliding plate is achieved, and abrasion and energy consumption are remarkably reduced.

Description

Technical Field

[0001] This utility model belongs to the field of precision mechanical motion control technology, and in particular relates to a high-precision seamless splicing air-bearing guide rail device. Background Technology

[0002] Guide rail devices are mechanical structures used in linear reciprocating motion applications, moving precisely along a specific trajectory. They are widely used in machine tools, automation equipment, 3D printers, linear modules, and other fields.

[0003] Although existing guide rails are widely used, they also have two prominent drawbacks, as follows:

[0004] 1. Due to the limitations of manufacturing and transportation length, manual handling and segmented overlapping are required, resulting in loose fit at the joints, height differences and straightness deviations, which seriously affect the motion accuracy;

[0005] 2. The commonly used contact sliding structure generates significant frictional resistance when driven by a linear motor, resulting in substantial mechanical energy loss and component wear, increasing maintenance costs. These problems severely restrict the improvement of equipment performance and energy efficiency. Utility Model Content

[0006] The purpose of this invention is to provide a high-precision seamless splicing air-bearing guide rail device to solve the problems raised by the prior art.

[0007] To achieve the above objectives, the present invention employs a high-precision seamless splicing air-bearing guide rail device, comprising a front base and a rear base. The front base has multiple cylindrical holes at one end, into which inserts are installed. The rear base has multiple semi-threaded pins at one end, which are compatible with the inserts. Multiple slots are formed on the top and sides of the rear base, with one end of each semi-threaded pin extending into one of the slots. Bolts are installed within these slots to securely connect the front and rear bases. Inward-facing cavities are formed above both the front and rear bases, and sliding components pass through these cavities. A sliding plate is provided, with an inner cavity inside. Multiple vertical ventilation holes are provided above the sliding plate. The inner cavity includes a central cavity and side cavities. The central cavity is located in the middle of the inner cavity, and the side cavities are located on both sides of the inner cavity. The inner cavity and the side cavities are connected. A main air transmission pipe is provided in the side cavity. The upper end of the main air transmission pipe is connected to the ventilation holes. A primary air outlet and a secondary air outlet are provided around the main air transmission pipe. A tertiary air outlet is provided below the main air transmission pipe. The primary, secondary, and tertiary air outlets extend out of the outer wall of the sliding plate. The sliding plate slides above the front and rear bases without contact via the air outlet mechanism.

[0008] As preferred, the primary air outlet is arranged in the middle cavity and adjacent to the side cavity, the secondary air outlet is arranged in the side cavity and adjacent to the top of the side cavity, and the tertiary air outlet is arranged at the bottom of the side cavity, the primary air outlet, the secondary air outlet and the tertiary air outlet are provided with transverse transmission pipes and air nozzles, the transverse transmission pipes are communicated with the main air transmission pipe through the air transmission pipe, and the air nozzles are arranged on the outer circumferential side of the transverse transmission pipes and are provided with a plurality of air nozzles arranged in parallel.

[0009] As preferred, the front base and the rear base are provided with lifting holes on both sides for facilitating lifting.

[0010] As preferred, the sliding assembly comprises a sliding rail and a linear motor, the sliding rail is arranged in the recess cavity formed above the front base and the rear base, the linear motor is slidingly arranged in the sliding rail, and a sliding plate is arranged above the linear motor.

[0011] As preferred, the joint between the front base and the rear base is coated with a caulking agent, which plays a waterproof and heat insulation role between the front base and the rear base.

[0012] As preferred, the end faces of the front base and the rear base are both in the shape of a "concave" character.

[0013] Compared with the prior art, the advantages and positive effects of the utility model lie in that,

[0014] The utility model realizes the distribution of air pressure gradient through layered air supply, the primary air outlet forms a main bearing air film, the secondary air outlet maintains stable support, the tertiary air outlet provides auxiliary balance, and a complete air floating force field is jointly constructed, the air is outputted outward through the air nozzles on the circumferential side of the transverse transmission pipe, the air film pressure distribution is more uniform, the direct contact between the sliding plate and the front base or the rear base is effectively reduced, the sliding plate is guided to slide without contact through the sliding assembly, in addition, the slot provides convenience for installation and dismounting, two bases can be directly spliced through the cooperation of the half-threaded pin, the insert and the mounting bolt, which is simple, fast, compact and connects two parts into a compact whole structure, the base can be lifted and positioned for splicing through the lifting equipment in the lifting hole, then manual auxiliary cooperation with the pin is needed, the labor intensity during manual moving is reduced, and the splicing is more stable and accurate. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1 It is a whole structure perspective view of a high-precision seamless splicing type air floating guide rail device.

[0017] Figure 2 is a side view of a high-precision seamless splicing type air floating guide rail device;

[0018] Figure 3 is a schematic view of the internal structure of the sliding plate;

[0019] Figure 4 is a schematic view of the mounting structure of the front base and the rear base;

[0020] Figure 5 is a schematic view of the structure of the spliced front base and rear base.

[0021] In the above figures, 1 is a front base, 2 is a rear base, 3 is a sliding rail, 4 is a sliding plate, 5 is a vent hole, 6 is a hoisting hole, 7 is a slot, 8 is an inner cavity, 801 is a middle cavity, 802 is a side cavity, 9 is a main air transmission pipe, 10 is a first-stage air outlet, 11 is a second-stage air outlet, 12 is a third-stage air outlet, 13 is a horizontal transmission pipe, 14 is an air nozzle, 15 is a half-threaded pin, 16 is an insert, 17 is a linear motor, and 18 is an air supply pipe. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above purpose, features and advantages of the present application, the present application will be further described below in conjunction with the drawings and examples. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, therefore, the present application is not limited to the specific embodiments disclosed in the following description.

[0024] Example 1, as Figures 1-5As shown, the following specific design of the above key components: a high-precision seamless splicing type air floating guide rail device, comprising a front base 1 and a rear base 2, the front base 1 is provided with a plurality of columnar holes at one end, the columnar holes are provided with inserts 16, the rear base 2 is provided with a plurality of half-threaded pins 15 at one end, the half-threaded pins 15 are matched with the inserts 16, the rear base 2 is provided with a plurality of notches 7 on the top and the side, the half-threaded pins 15 extend into the notches 7 at one end, the front base 1 and the rear base 2 are fastened and spliced by installing bolts in the notches 7, the front base 1 and the rear base 2 are provided with inward recesses on the top, the recesses are provided with sliding plates 4 through sliding assemblies on the top, the sliding plates 4 are provided with a plurality of air holes 5 penetrating up and down on the top, the inner cavities 8 include middle cavities 801 and side cavities 802, the middle cavities 801 are located in the middle of the inner cavities 8, the side cavities 802 are located on both sides of the inner cavities 8, the inner cavities 8 and the side cavities 802 are communicated, the side cavities 802 are provided with main air pipes 9, the main air pipes 9 are communicated with the air holes 5 at the upper end, the main air pipes 9 are provided with first-stage air outlets 10 and second-stage air outlets 11 on the side, the main air pipes 9 are provided with third-stage air outlets 12 below, the first-stage air outlets 10, the second-stage air outlets 11 and the third-stage air outlets 12 extend out of the outer wall of the sliding plates 4, the sliding plates 4 slide on the top of the front base 1 and the rear base 2 without contact through the air outlet mechanism.The first-stage gas outlet 10 is arranged in the middle cavity 801 and adjacent to the side cavity 802, the second-stage gas outlet 11 is arranged in the side cavity 802 and adjacent to the top of the side cavity 802, and the third-stage gas outlet 12 is arranged at the bottom of the side cavity 802. The first-stage gas outlet 10, the second-stage gas outlet 11 and the third-stage gas outlet 12 are all provided with the transverse transmission transverse pipe 13 and the gas nozzle 14. The transverse pipe 13 is communicated with the main gas transmission pipe 9 through the gas transmission pipe 18. The gas nozzle 14 is installed on the outer circumferential side of the transverse pipe 13 and is provided with a plurality of gas nozzles arranged in parallel. First, the half-threaded pin 15 is inserted into the insert 16 with the aid of manual assistance, and then the bolt is tightened in the slot 7 to fix the splicing of the front base 1 and the rear base 2. Then, the gas is supplied into the main gas transmission pipe 9 through the gas supply system and the air hole 5. The main gas transmission pipe 9 transmits the gas to the first-stage gas outlet 10, the second-stage gas outlet 11 and the third-stage gas outlet 12 through the gas transmission pipe 18. The first-stage gas outlet 10 is above the inner cavity 8 at the joint of the middle cavity 801 and the side cavity 802. The first-stage gas outlet 10 can spray the gas outside the inner cavity 8 through the transverse pipe 13 and the row of gas nozzles 14 arranged on the outer circumferential side of the transverse pipe. The first-stage gas outlet 10 is just above the front base 1 and the rear base 2. The downward spraying of the gas through the gas nozzle 14 can make the sliding plate 4 move upward. The linear motor 17 is connected to the bottom of the sliding plate 4 above and is slightly higher than the horizontal plane above the front base 1 or the rear base 2, so that the sliding plate 4 can be kept slightly suspended above the front base 1 and the rear base 2. The second-stage gas outlet 11 sprays the gas inside the sliding plate 4 through the transverse pipe and the gas nozzle 14, so that the sliding plate 4 can continue to keep contactless with the front base 1 and the rear base 2. A force outward is formed under the action of the second-stage gas outlet 11. Because the sliding plate 4 is in the shape of an inverted concave letter, the second-stage gas outlet 11 on the inside of the sliding plate 4 can maintain a relative balance when spraying the gas. The third-stage gas outlet 12 sprays the gas downward through the transverse pipe 13 and the gas nozzle 14 at the bottom of the side cavity 802, so that the sliding plate 4 is suspended upward. The third-stage linkage cooperation can form an air layer below the sliding plate 4, generate the gas buoyancy, and thus realize the suspension and movement of the sliding plate on the front base 1 and the rear base 2. The whole keeps a suspended state and is stable. The linear motor 17 can drive the sliding plate 4 to move in a contactless manner, reduce the friction force, and avoid a certain amount of mechanical energy loss.

[0025] The front base 1 and the rear base 2 are provided with lifting holes 6 on both sides for convenient lifting, the sliding assembly comprises a sliding rail 3 and a linear motor 17, the sliding rail 3 is arranged in the recess cavity provided above the front base 1 and the rear base 2, the linear motor 17 is slidably arranged in the sliding rail 3, a sliding plate 4 is arranged above the linear motor 17, the joint of the front base 1 and the rear base 2 is coated with a joint sealant, which plays a waterproof and heat insulation role between the front base 1 and the rear base 2, the end faces of the front base 1 and the rear base 2 are both concave, the front base 1 and the rear base 2 can be lifted by lifting equipment through the lifting holes 6, then the direction is manually adjusted to cooperate with splicing, the joint sealant plays a role in repairing the gap between the front base 1 and the rear base 2, the concave design makes the front base 1 and the rear base 2 be able to cooperate with the sliding plate 4 to avoid collision and interference, and also facilitates the installation of the linear motor 17 and the sliding plate 4.

[0026] The content not described in detail in the specification belongs to the prior art known to those skilled in the art.

[0027] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments made according to the technical essence of the present application without departing from the technical scheme of the present application still belongs to the protection scope of the present application.

Claims

1. A high-precision seamless splicing air-bearing guide rail device, characterized in that, The system includes a front base and a rear base. The front base has multiple cylindrical holes at one end, into which inserts are installed. The rear base has multiple semi-threaded pins at one end, which are compatible with the inserts. Multiple slots are formed on the top and sides of the rear base, with one end of each semi-threaded pin extending into one slot. Bolts are installed in these slots to securely connect the front and rear bases. Inward-facing cavities are formed above both the front and rear bases. A sliding plate is mounted above these cavities via a sliding assembly. The sliding plate has an internal cavity. Multiple vertical ventilation holes are provided above the plate. The inner cavity includes a central cavity and side cavities. The central cavity is located in the middle of the inner cavity, and the side cavities are located on both sides of the inner cavity. The inner cavity and the side cavities are connected. A main air transmission pipe is provided in the side cavity. The upper end of the main air transmission pipe is connected to the ventilation holes. A primary air outlet and a secondary air outlet are provided around the main air transmission pipe. A tertiary air outlet is provided below the main air transmission pipe. The primary, secondary, and tertiary air outlets extend out of the outer wall of the sliding plate. The sliding plate slides above the front and rear bases without contact through the air outlet mechanism.

2. The high-precision seamless splicing air-bearing guide rail device according to claim 1, characterized in that, The primary air outlet is located in the middle cavity and near the side cavity, the secondary air outlet is located in the side cavity and near the top of the side cavity, and the tertiary air outlet is located at the bottom of the side cavity. The primary, secondary, and tertiary air outlets are all equipped with transverse transmission pipes and air nozzles. The transverse transmission pipes are connected to the main transmission pipes through the air supply pipes. The air nozzles are installed on the outer periphery of the transverse transmission pipes and are arranged in a row.

3. A high-precision seamless splicing air-bearing guide rail device according to claim 2, characterized in that, The front and rear bases are provided with hoisting holes on both sides for easy hoisting.

4. A high-precision seamless splicing air-bearing guide rail device according to claim 3, characterized in that, The sliding assembly includes a slide rail and a linear motor. The slide rail is disposed in a cavity opened above the front base and the rear base. The linear motor is slidably disposed in the slide rail. A sliding plate is disposed above the linear motor.

5. A high-precision seamless splicing air-bearing guide rail device according to claim 4, characterized in that, The joint between the front and rear bases is coated with sealant, which serves to provide waterproofing and heat insulation between the front and rear bases.

6. A high-precision seamless splicing air-bearing guide rail device according to claim 5, characterized in that, Both the front and rear bases have concave end faces.

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