Pneumatic slide table with heat dissipation function

Abstract

The application relates to the field of pneumatic sliding tables, in particular to a pneumatic sliding table with a heat dissipation function, which comprises a power platform and a bearing table in sliding connection, the power platform drives the bearing table to reciprocatingly slide. An air extraction assembly is arranged between the power platform and the bearing table, and a plurality of air holes which are in communication with the air extraction assembly are formed in the side of the bearing table which faces the power platform. During the working process of the pneumatic sliding table, the power platform drives the bearing table to slide and further drives the air extraction assembly to operate, so that the gas flow between the power platform and the bearing table is generated. The application has the effects that the pneumatic sliding table can automatically dissipate heat during use, and the service life of the equipment is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of pneumatic slide table, in particular to a pneumatic slide table with heat dissipation function. BACKGROUND

[0002] The pneumatic slide table is a common linear reciprocating motion device part in automatic production. The existing pneumatic slide table is connected with the fixed slide table through the workbench surface for bearing, and then the cylinder is installed in the fixed slide table to drive the workbench surface to reciprocate on the fixed slide table.

[0003] However, the heat generated by the friction between the workbench surface and the fixed slide table is difficult to dissipate outward after a long time of work, resulting in the increase of the internal temperature of the pneumatic slide table, which affects the service life. SUMMARY

[0004] In order to automatically dissipate heat in use and improve the service life of the equipment, the present application provides a pneumatic slide table with heat dissipation function.

[0005] The pneumatic slide table with heat dissipation function provided by the present application adopts the following technical scheme:

[0006] The pneumatic slide table with heat dissipation function comprises:

[0007] A power platform with a built-in driving cylinder, a sliding groove is opened on the power platform;

[0008] A bearing table connected with the output end of the driving cylinder, a guide rail is arranged on the bearing table, the guide rail is movably arranged in the sliding groove to slidably connect the bearing table with the power platform, a plurality of air holes are opened on the side of the bearing table facing the power platform;

[0009] An air extraction assembly connected with the air holes, the sliding of the bearing table can drive the air extraction assembly to operate to make the air flow through the air holes.

[0010] By adopting the above technical scheme, the air holes are opened on the side of the bearing table facing the power platform, and the air extraction assembly is arranged, the air extraction assembly is driven to operate by the sliding of the bearing table, so that the air between the power platform and the bearing table can flow, thereby the pneumatic slide table can automatically dissipate heat in use, and the service life of the equipment is improved.

[0011] Optionally, the air extraction assembly comprises a cylinder and a piston rod, the piston rod is slidably inserted into the cylinder, the cylinder is fixedly connected with the bearing table and communicated with the air holes, one end of the piston rod away from the cylinder is connected with the power platform, and the cylinder can slide synchronously with the bearing table.

[0012] By adopting the technical scheme, the air extraction assembly is formed in the form of a gas cylinder combined with a piston rod, the piston rod is slidingly inserted into the gas cylinder, the gas cylinder is connected with the bearing table, and the bearing table and the gas cylinder slide synchronously to realize gas circulation. In addition, during the reciprocating movement of the bearing table, the gas cylinder and the piston rod can also slow down and buffer the sliding of the bearing table, so as to avoid the collision between the bearing table and the power platform due to the too fast sliding speed of the bearing table.

[0013] Optionally, the bearing table is internally provided with a gas cavity for communicating the air hole with the gas cylinder, the air hole comprises an air inlet hole and an air outlet hole, and the gas cavity is internally provided with a one-way valve communicated with the air inlet hole, and the air outlet hole is arranged on one side of the guide rail facing the sliding groove.

[0014] By adopting the technical scheme, the gas cavity is arranged inside the bearing table to save space and reduce the arrangement of the air pipe; the air inlet hole and the air outlet hole are separated, the air outlet hole is arranged on one side of the guide rail facing the sliding groove, and the one-way valve communicated with the air inlet hole is arranged, so that the gas can be concentrated and discharged into the sliding groove where the heat is not easy to dissipate, and the heat dissipation efficiency is improved.

[0015] Optionally, the one-way valve is an elastic sealing membrane, the elastic sealing membrane is fixed to the inner wall of the gas cavity and covers the air inlet hole, and the elastic sealing membrane expands into the gas cavity to suck air into the gas cavity.

[0016] By adopting the technical scheme, the elastic sealing membrane is fixed to the inner wall of the gas cavity to seal the air inlet hole. During air intake, the elastic sealing membrane expands to one side of the gas cavity, the edge of the elastic sealing membrane is separated from the inner wall of the gas cavity, and the gas enters the gas cavity from the gap; and during air outlet, the elastic sealing membrane further abuts and tightly contacts under the action of air pressure, so as to prevent the gas from leaking from the air inlet hole, thereby realizing the function of the one-way valve. In addition, the membrane-shaped one-way valve structure is simple and can also reduce the self-weight.

[0017] Optionally, one side of the elastic sealing membrane facing the air inlet hole is provided with an electrostatic adsorption layer.

[0018] By adopting the technical scheme, the electrostatic adsorption layer is arranged on the side of the elastic sealing membrane facing the air inlet hole to adsorb dust in the air during air intake, so as to avoid dust accumulation in the gas cavity as much as possible.

[0019] Optionally, the sliding groove is filled with balls.

[0020] By adopting the technical scheme, the sliding groove is filled with balls, the guide rail and the balls are in contact to slide, rolling is used instead of sliding, direct contact between the guide rail and the inner wall of the sliding groove is avoided, and heat generation is reduced. In addition, the balls are used for isolation, so that a larger gap is formed between the guide rail and the bottom wall of the sliding groove, and the air outlet hole can blow air into the sliding groove.

[0021] Optionally, a lubricating component is arranged in part of the air outlet holes, and the lubricating component is used to release lubricating substances into the sliding groove.

[0022] By adopting the above technical scheme, the lubricating component is arranged in part of the air outlet holes, and the lubricating component is used to release lubricating substances into the sliding groove. The reciprocating sliding of the bearing table can uniformly apply the lubricating substances, further reduce the sliding friction, and make the sliding of the bearing table more smooth.

[0023] Optionally, the lubricating component comprises a containing tube in communication with the air outlet hole and a movable ball head used to block the air outlet hole. The containing tube is sealingly connected to the air cavity, the movable ball head abuts against the inner wall of the containing tube, the lubricating substances are filled in the containing tube, and the movable ball head is separated from the edge of the air outlet hole to release the lubricating substances.

[0024] By adopting the above technical scheme, when the guide rail slides to abut against the movable ball head and the power platform, the movable ball head moves upward to be separated from the edge of the air outlet hole, and the lubricating substances enter the sliding groove from the air outlet hole. When the bearing table slides to the containing tube out of the range of the power platform, the movable ball head blocks the air outlet hole under the action of gravity, and the effect of intermittent release of the lubricating substances is achieved.

[0025] Optionally, the lubricating substances are perfluoropolyether oil.

[0026] By adopting the above technical scheme, the perfluoropolyether oil is safe, non-toxic, and stable in property. In addition to the lubricating effect, the perfluoropolyether oil also has good corrosion resistance.

[0027] Optionally, a floating joint is connected between the driving air cylinder and the bearing table.

[0028] By adopting the above technical scheme, the floating joint can reduce the side moment borne by the driving air cylinder, and also reduce the installation precision requirement between the bearing table and the driving air cylinder.

[0029] In summary, the present application has at least one of the following beneficial technical effects:

[0030] 1. By arranging the air extraction component and the air hole on the bearing table, the reciprocating movement of the bearing table is used to drive the air extraction component to operate, so that the gas flow is generated between the power platform and the bearing table, the pneumatic sliding table is automatically cooled during use, and the service life of the equipment is improved.

[0031] 2. By arranging the air cavity inside the bearing table, the space can be saved, and the arrangement of the external air duct is reduced. By separating the air inlet channel and the air outlet channel, arranging the air outlet hole on the side of the guide rail facing the sliding groove, and arranging the one-way valve in communication with the air inlet hole, the gas can be concentrated and discharged into the sliding groove where the heat is not easy to dissipate, and the heat dissipation efficiency is improved.

[0032] 3. By installing the lubricating assembly in the partial air outlet hole, the lubricating assembly is intermittently released into the sliding groove by the reciprocating movement of the bearing platform, reducing frictional heat and equipment wear. By using the characteristics of the reciprocating movement of the bearing platform, the lubrication and heat dissipation are automatically performed in the use of the pneumatic sliding table. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a schematic diagram of the pneumatic sliding table structure with heat dissipation function of the embodiment of the present application.

[0034] Figure 2 is a schematic diagram of the pneumatic sliding table structure with heat dissipation function of the embodiment of the present application from another perspective.

[0035] Figure 3 is a schematic diagram of the bearing platform structure of the embodiment of the present application.

[0036] Figure 4 is a schematic diagram of the internal structure of the bearing platform of the embodiment of the present application.

[0037] Figure 5 is a schematic diagram of the internal structure of the air cavity of the embodiment of the present application.

[0038] Figure 6 is a transverse sectional view of the pneumatic sliding table with heat dissipation function of the embodiment of the present application.

[0039] Figure 7 is Figure 6 is a partial enlarged view of the A-A part in FIG.

[0040] BRIEF DESCRIPTION OF DRAWINGS

[0041] 1, power platform; 11, driving cylinder; 12, sliding groove; 13, ball; 2, bearing platform; 21, guide rail; 22, air hole; 221, air inlet hole; 222, air outlet hole; 23, air duct; 24, air cavity; 25, mounting hole; 3, air extraction assembly; 31, air cylinder; 32, piston rod; 4, one-way valve; 41, elastic sealing membrane; 42, screw; 5, electrostatic adsorption layer; 6, lubricating assembly; 61, containing tube; 62, movable ball head; 63, tube cover; 7, floating joint. DETAILED DESCRIPTION

[0042] The following will be described in detail in combination with the accompanying Figures 1-7 The present application will be further described in detail.

[0043] The embodiment of the present application discloses a pneumatic sliding table with heat dissipation function.

[0044] Reference Figure 1 , Figure 2The pneumatic slide table with heat dissipation function comprises a power platform 1 and a bearing table 2 which are connected in a sliding mode, and the power platform 1 drives the bearing table 2 to reciprocate. An air extraction assembly 3 is arranged between the power platform 1 and the bearing table 2. During the working process of the pneumatic slide table, the air extraction assembly 3 is driven to operate, so that the gas flows between the power platform 1 and the bearing table 2, and the effect of automatic heat dissipation is achieved.

[0045] With reference to Figure 1 A driving cylinder 11 is arranged in the power platform 1, and the outer body of the power platform 1 can protect the driving cylinder 11 and reduce the size of the equipment, so that the equipment is more compact. In the embodiment, two driving cylinders 11 are arranged in parallel in the same direction and provide power for the pneumatic slide table. In other embodiments, single-cylinder driving or three-cylinder driving can be used according to the use requirements. The bearing table 2 is L-shaped and horizontally covers the power platform 1. A sliding groove 12 is formed in the top surface of the power platform 1 along the extension direction of the driving cylinder 11. The bearing table 2 is provided with guide rails 21 matched with the sliding groove 12, and the guide rails 21 are movably arranged in the sliding groove 12 to realize the sliding connection between the bearing table 2 and the power platform 1. In the embodiment, the sliding groove 12 and the guide rail 21 are both provided with two, which can improve the sliding stability of the bearing table 2. The bottom wall of the sliding groove 12 and the outer periphery of the guide rail 21 are both arc-shaped, the sliding groove 12 is filled with steel balls 13, the guide rail 21 contacts the steel balls 13 to slide, rolling is used instead of sliding, direct contact between the guide rail 21 and the inner wall of the sliding groove 12 is avoided, heat generation is reduced, and the sliding of the bearing table 2 is smoother. The steel balls 13 are preferably smooth steel balls, and the friction is reduced as much as possible.

[0046] With reference to Figure 2 The output end of the driving cylinder 11 is connected with the bearing table 2. In order to reduce the side torque borne by the driving cylinder 11 and reduce the load of the driving cylinder, a floating joint 7 is connected between the driving cylinder 11 and the bearing table 2. The power platform 1 and the bearing table 2 are provided with mounting holes 25 of different sizes in the outer periphery, for connecting and mounting other components.

[0047] With reference to Figure 3 , Figure 4 A plurality of air holes 22 which are communicated with the air extraction assembly 3 are formed in the side of the bearing table 2 facing the power platform 1. The air holes 22 comprise air inlet holes 221 and air outlet holes 222. The air inlet holes 221 are circular and arranged between the two guide rails 21. The air inlet holes and the air outlet holes are separated, and the plurality of air outlet holes 222 are uniformly distributed on the arc surface of the guide rail 21, so that the gas can be concentrated and discharged into the sliding groove 12 where the heat is not easy to dissipate, thereby improving the heat dissipation efficiency. In the embodiment, the air outlet holes 222 are arranged in three rows along the circumference of the arc surface of the guide rail 21, and in other embodiments, the number and array mode of the air outlet holes 222 can be changed and adjusted, and the air outlet holes 222 can also be staggered and spaced.

[0048] With reference to Figure 3 , Figure 4The air extraction assembly 3 comprises a cylinder 31 and a piston rod 32, and the piston rod 32 is slidingly inserted into the cylinder 31. The cylinder 31 is fixedly connected with the bearing table 2 and communicates with the air hole 22. The bearing table 2 is internally provided with an air cavity 24, and the air cavity 24 communicates with the cylinder 31 through an air passage 23. The air cavity 24 is arranged inside the bearing table 2, which can save space and simplify equipment. In other embodiments, an air pipe can be arranged instead of the air cavity 24. The end of the piston rod 32 away from the cylinder 31 is connected with the power platform 1, so that the cylinder 31 can slide synchronously with the bearing table 2. Each air inlet hole 221 is provided with a one-way valve 4. The piston rod 32 cooperates with the cylinder 31 to perform piston movement. When air is extracted, external air enters the air cavity 24 through the air inlet hole 221, and when air is discharged, the air is discharged from the air outlet hole 222 into the sliding groove 12. In addition, during the reciprocating movement of the bearing table 2, the cylinder 31 cooperates with the piston rod 32 to slow down and buffer the sliding of the bearing table 2, so as to avoid the collision between the bearing table 2 and the power platform 1 due to the too fast sliding speed of the bearing table 2. In this embodiment, the cavity is arranged inside the bearing table 2 as the accommodating space of the cylinder 31, so that the installation of the cylinder body 31 can be omitted. In other embodiments, a finished product cylinder 31 can be installed between the bearing table 2 and the power platform 1.

[0049] With reference to Figure 4 , Figure 5 The one-way valve 4 is an elastic sealing film 41, which is fixed to the inner wall of the air cavity 24 and covers the air inlet hole 221. In the daily state, the elastic sealing film 41 seals the air inlet hole 221. In this embodiment, the elastic sealing film 41 is rectangular, and is preferably made of rubber or silicone. The four corners are fixedly installed on the inner wall of the air cavity 24 by screws 42. When the air extraction assembly 3 extracts air inward, the elastic sealing film 41 expands toward the air cavity 24 under the action of air pressure, the edge of the elastic sealing film 41 is separated from the inner wall of the air cavity 24, and the gas enters the air cavity 24 from the gap. When air is discharged, the air pressure makes the elastic sealing film 41 further adhere to the inner wall of the air cavity 24, so as to prevent the gas from leaking from the air inlet hole 221, thereby realizing the function of the one-way valve 4. In addition, the membrane-shaped one-way valve 4 not only has a simple structure, but also can reduce the weight.

[0050] With reference to Figure 6 The side of the elastic sealing film 41 facing the air inlet hole 221 is attached with an electrostatic adsorption layer 5, which can adsorb dust in the air during air intake, so as to avoid dust accumulation in the air cavity 24 as much as possible.

[0051] With reference to Figure 6 , Figure 7 The air cavity 24 is further provided with a lubricating assembly 6. The lubricating assembly 6 communicates with a part of the air outlet holes 222, and releases lubricating substances into the sliding groove 12 through the air outlet holes 222. The reciprocating sliding of the bearing table 2 can uniformly apply the lubricating substances, thereby further reducing the friction heat and making the sliding of the bearing table 2 more smooth.

[0052] With reference to Figure 6 , Figure 7 The lubricating assembly 6 comprises a containing tube 61, a movable ball head 62 and a tube cover 63. (Combining Figure 5 The containing tube 61 is spaced apart along the length direction of the guide rail 21. In other embodiments, the number and position of the containing tube 61 can be adjusted according to requirements. The containing tube 61 is sealingly installed inside the air cavity 24, vertically inserted into the guide rail 21 and has a bottom tube opening in communication with the air outlet hole 222. The movable ball head 62 abuts against the inner wall of the containing tube 61 under the action of gravity and blocks the air outlet hole 222. Lubricating substance is filled in the containing tube 61. The tube cover 63 is plugged at the top tube opening of the containing tube 61, which can facilitate adding supplemental lubricating substance into the containing tube 61. The lubricating substance is preferably a liquid with strong flowability. In this embodiment, the lubricating substance is perfluoropolyether oil. The perfluoropolyether oil is safe, non-toxic and stable in properties, and has good corrosion resistance in addition to lubricating effect.

[0053] With reference to Figure 6 , Figure 7 When the guide rail 21 slides to the position where the movable ball head 62 is in contact with the ball 13, the ball 13 pushes the movable ball head 62 to move upward, so that the movable ball head 62 is separated from the edge of the air outlet hole 222. The lubricating substance in the containing tube 61 leaks out of the air outlet hole 222 through the gap and drips into the sliding groove 12. When the bearing table 2 slides to the position where the containing tube 61 is out of the range of the power platform 1, the movable ball head 62 blocks the air outlet hole 222 under the action of gravity, thereby achieving the effect of intermittent release of lubricating substance.

[0054] The air extraction assembly 3, the air vent hole 22 and the lubricating assembly 6 cooperate with each other to release lubricating substance from the lubricating assembly 6 into the sliding groove 12 through the reciprocating movement of the bearing table 2, thereby reducing frictional heat and equipment wear. The reciprocating movement of the bearing table 2 jointly acts from the aspects of reducing heat and improving heat dissipation efficiency. Lubrication and heat dissipation are automatically performed in the use of the pneumatic sliding table.

[0055] The implementation principle of the pneumatic sliding table with heat dissipation function in the embodiment of the application is as follows: the driving air cylinder 11 drives the bearing table 2 to reciprocatingly slide to work. The bearing table 2 drives the piston rod 32 to perform piston movement in the air cylinder 31. During air extraction, the elastic blocking membrane 41 expands toward the side of the air cavity 24, and air enters the air cavity 24 from the gap. During air exhaust, air is exhausted from the air outlet hole 222 into the sliding groove 12. During the sliding process of the guide rail 21, the movable ball head 62 intermittently contacts the ball 13. The ball 13 pushes the movable ball head 62 upward. The lubricating substance in the containing tube 61 seeps into the sliding groove 12 from the air outlet hole 222. The pneumatic sliding table automatically realizes heat dissipation and lubrication during the working process, thereby improving the service life of the equipment.

[0056] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A pneumatic slide with heat dissipation function, characterized in that, The utility model provides a kind of air flow generation device, including: Power platform (1) is built-in with driving cylinder (11), the sliding slot (12) is opened on the power platform (1); Bearing table (2) is connected with the output end of the driving cylinder (11), the guide rail (21) is equipped on the bearing table (2), the guide rail (21) is movably arranged in the sliding slot (12) to make the bearing table (2) and the power platform (1) sliding connection, the side of the bearing table (2) towards the power platform (1) is opened with multiple air holes (22); Air extraction assembly (3) is communicated with the air hole (22), the bearing table (2) sliding can drive air extraction assembly (3) to operate to make air flow through the air hole (22); The air extraction assembly (3) includes air cylinder (31) and piston rod (32), the piston rod (32) is slidably inserted into the air cylinder (31), the air cylinder (31) is fixedly connected with the bearing table (2) and is communicated with the air hole (22), the end of the piston rod (32) away from the air cylinder (31) is connected with the power platform (1), and the air cylinder (31) can slide synchronously with the bearing table (2); The inside of the bearing table (2) is provided with air cavity (24) for communicating the air hole (22) with the air cylinder (31), the air hole (22) includes air inlet hole (221) and air outlet hole (222), the air cavity (24) is provided with one-way valve (4) communicated with the air inlet hole (221), and the air outlet hole (222) is arranged on the side of the guide rail (21) towards the sliding slot (12); Part of the air outlet hole (222) is provided with lubricating assembly (6), and the lubricating assembly (6) is used for releasing lubricating substance into the sliding slot (12); The lubricating assembly (6) includes containing pipe (61) communicated with the air outlet hole (222) and movable ball head (62) used for plugging the air outlet hole (222), the containing pipe (61) is sealingly connected in the air cavity (24), the movable ball head (62) is abutted to the inner wall of the containing pipe (61), the lubricating substance is filled in the containing pipe (61), and the movable ball head (62) is separated from the edge of the air outlet hole (222) to release the lubricating substance; The sliding slot (12) is filled with ball (13), and the ball (13) is used for abutting with the movable ball head (62).

2. The air slide table with heat dissipation function according to claim 1, wherein, The one-way valve (4) is elastic sealing membrane (41), the elastic sealing membrane (41) is fixed to the inner wall of the air cavity (24) and covers the air inlet hole (221), and the elastic sealing membrane (41) is inflated into the air cavity (24) to suck air into the air cavity (24).

3. The air slide table with heat dissipation function according to claim 2, characterized in that, The side of the elastic sealing membrane (41) towards the air inlet hole (221) is provided with electrostatic adsorption layer (5).

4. The air slide table with heat dissipation function according to claim 1, wherein, The lubricating substance is perfluoropolyether oil.

5. The air slide table with heat dissipation function according to claim 1, wherein, The driving cylinder (11) is connected with the bearing table (2) through floating joint (7).

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