Rotary vacuum keeping mechanism

Abstract

The invention discloses a rotary vacuum keeping mechanism which comprises a bottom shell, a moving mechanism is installed on the bottom shell, a side guide moving plate is fixed to the side wall of a moving block of the moving mechanism, a horizontal fixing plate is fixed to the upper portion of the side guide moving plate, and a rotary servo motor is fixed to the middle of the bottom face of the horizontal fixing plate. A connecting shaft sleeve is fixed to an output shaft of the rotary servo motor and inserted into a middle through hole of the horizontal fixing plate in a sleeved mode, and a gap is formed between the outer side wall of the connecting shaft sleeve and the inner side wall of the middle through hole. The pressure between the top surface of the gas path output platform and the top surface of the gas path adapter plate is provided by the spring, the pressing force is low, the rotation resistance of the gas path output platform can be reduced, the normal horizontal rotation of the gas path output platform can be ensured, the switching is realized, and the switching effect is good.

Description

Technical fields:

[0001] This invention relates to the field of machining equipment technology, and more specifically to a rotary vacuum holding mechanism. Background technology:

[0002] Existing rotary vacuum holders primarily employ a gas slip ring solution. A gas slip ring typically consists of three parts: an outer shell, a rotating part, and a gas channel. Its structure is complex and its volume is enormous. Furthermore, the resistance that needs to be overcome during rotation is also very large. Therefore, it cannot be adapted to some application scenarios where space is limited and high power cannot be provided. Summary of the Invention:

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a rotary vacuum holding mechanism. It has a simple structure and small size. The pressure between the top surface of the gas output platform and the top surface of the gas transfer plate is provided by a spring. The clamping force is low, which can reduce the resistance to the rotation of the gas output platform, ensure its normal horizontal rotation, realize switching, and achieve good switching effect.

[0004] The solution of the present invention to the aforementioned technical problem is:

[0005] A rotary vacuum holding mechanism includes a bottom housing, on which a moving mechanism is mounted. A side guide moving plate is fixed to the side wall of the moving block of the moving mechanism. A horizontal fixed plate is fixed to the upper part of the side guide moving plate. A rotary servo motor is fixed to the middle of the bottom surface of the horizontal fixed plate. A connecting bushing is fixed to the output shaft of the rotary servo motor. The connecting bushing is inserted into the middle through hole of the horizontal fixed plate. There is a gap between the outer side wall of the connecting bushing and the inner side wall of the middle through hole.

[0006] A floating air intake platform plate is provided above the horizontal fixed plate. The connecting bushing is inserted into the middle through hole of the floating air intake platform plate. Guide posts are fixed at the front and rear of the left and right sides of the horizontal fixed plate. The upper part of the guide post extends out of the top surface of the horizontal fixed plate and is fixed with a guide sleeve. The guide sleeve is inserted into the corresponding guide through hole formed on the floating air intake platform plate. The outer side wall of the guide sleeve is in close contact with or close to the inner side wall of the corresponding guide through hole.

[0007] An air passage adapter plate is inserted into the upper part of the connecting bushing. The connecting bushing is inserted into the middle through hole of the air passage adapter plate, and there is a gap between its outer side wall and the inner side wall of the middle through hole. A spring is inserted into the connecting bushing. The bottom end of the spring is applied to the top surface of the horizontal fixed plate, and the top end is applied to the bottom surface of the floating air intake platform plate. The top surface of the floating air intake platform plate is pressed against the bottom surface of the air passage adapter plate and fixed by bolts. An air passage output platform is fixed on the top surface of the connecting bushing, and the bottom surface of the air passage output platform is in close contact with the top surface of the air passage adapter plate.

[0008] The moving mechanism includes a moving servo motor fixed to the right top surface of the top plate of the bottom housing. The bottom end of the output shaft of the moving servo motor extends out of the bottom surface of the top plate of the bottom housing and is fixed with a drive synchronous pulley. The left side of the bottom surface of the top plate of the bottom housing is movably connected to a transmission synchronous pulley via a hinge shaft. The transmission synchronous belt is tensioned on the drive synchronous pulley and the transmission synchronous pulley. The transmission synchronous belt is located in the bottom housing. A side guide moving plate is fixed in the middle of the transmission synchronous belt. The side guide moving plate is inserted into a transverse through groove extending to the left and right at the rear of the top plate of the bottom housing and cooperates with the transverse through groove. The middle part of the side guide moving plate extends out of the top of the transverse through groove.

[0009] The top surface of the top plate of the bottom housing is fixed with a left-right extending guide rail, and the moving block is inserted into the guide rail and cooperates with the guide rail.

[0010] A bottom cover plate is fixed on the bottom surface of the bottom housing, and the bottom cover plate covers the transmission timing belt, the drive timing pulley, and the transmission timing pulley.

[0011] The right side wall of the floating air intake platform plate is formed with multiple horizontal air intake holes extending to the left. The left end of the horizontal air intake hole is connected to the bottom end of the corresponding vertical hole formed on the top right side of the floating air intake platform plate. The top end of the vertical hole is connected to the right end of the corresponding top surface guide groove formed on the top surface of the floating air intake platform plate. The foremost top surface guide groove is located at the front right side of the floating air intake platform plate. The middle part of the remaining top surface guide grooves is arc-shaped around the connecting bushing, and the other end is located at the top rear part of the floating air intake platform plate.

[0012] The top surface of the right to rear part of the air passage adapter plate is formed with an arc-shaped protrusion. The rear top surface of the arc-shaped protrusion is formed with a plurality of first vertical air guide holes. The bottom end of the first vertical air guide hole corresponds to and communicates with the corresponding top surface guide groove of the floating air intake platform plate. The top surface of the right part of the arc-shaped protrusion is formed with an upper arc-shaped groove. The bottom surface of the front end of the upper arc-shaped groove is formed with a second vertical air guide hole. The bottom end of the second vertical air guide hole communicates with and corresponds to the left end of the top surface guide groove of the front part of the floating air intake platform plate.

[0013] A sealing gasket is sandwiched between the bottom surface of the air passage adapter plate and the top surface of the floating air intake platform plate. Corresponding through grooves are formed at the sealing gaskets at the corresponding locations of the top surface guide grooves.

[0014] The top surface of the left end of the gas path adapter plate is formed with a first arc-shaped protrusion, and the top surface of the first arc-shaped protrusion and the top surface of the arc-shaped protrusion are on the same plane.

[0015] The top surface of the air output platform has raised strips extending forward and backward on the left and right sides, and raised strips extending left and right on the front and rear sides. Each raised strip has two vertical air outlet holes extending downward in the middle. The bottom end of the vertical air outlet hole is connected to one end of the waist-shaped concave hole formed on the bottom surface of the air output platform. The other end of the waist-shaped concave hole is connected to and corresponds to the upper arc groove or the corresponding first vertical air guide hole.

[0016] The outstanding effects of this invention are:

[0017] It has a simple structure and small size. The pressure between the top surface of its air output platform and the top surface of the air transfer plate is provided by a spring. Its clamping force is low, which can ensure that the resistance of the air output platform rotation is reduced, ensuring its normal horizontal rotation, realizing switching, and the switching effect is good. Attached image description:

[0018] Figure 1 This is a partial structural schematic diagram of the present invention;

[0019] Figure 2 This is a partial side view of the present invention;

[0020] Figure 3 This is a partial structural diagram of the present invention with the bottom shell removed and a protective cover installed;

[0021] Figure 4 yes Figure 3 A schematic diagram of the local structure at a different angle;

[0022] Figure 5 yes Figure 3 A partial structural diagram with the bottom cover removed;

[0023] Figure 6 This is an exploded view of a portion of the structure of the rotary servo motor of the present invention;

[0024] Figure 7 This is a partial structural schematic diagram of the floating air intake platform plate of the present invention;

[0025] Figure 8 yes Figure 7 A schematic diagram of the local structure at a different angle;

[0026] Figure 9 This is a partial structural diagram of the air passage adapter plate;

[0027] Figure 10 yes Figure 9 A schematic diagram of the local structure at a different angle;

[0028] Figure 11 This is a partial structural diagram of the gas output platform;

[0029] Figure 12 yes Figure 11 A schematic diagram of the local structure from a different angle. Detailed implementation method:

[0030] For example, see below. Figures 1 to 12 As shown, a rotary vacuum holding mechanism includes a bottom housing 10, on which a moving mechanism 20 is mounted. A side guide moving plate 22 is fixed on the side wall of the moving block 21 of the moving mechanism 20. A horizontal fixed plate 23 is fixed on the upper part of the side guide moving plate 22. A rotary servo motor 24 is fixed in the middle of the bottom surface of the horizontal fixed plate 23. A connecting bushing 25 is fixed on the output shaft of the rotary servo motor 24. The connecting bushing 25 is inserted into the middle through hole of the horizontal fixed plate 23. There is a gap between the outer side wall of the connecting bushing 25 and the inner side wall of the middle through hole.

[0031] A floating air intake platform plate 30 is provided above the horizontal fixed plate 23. A connecting bushing 25 is inserted into the middle through hole of the floating air intake platform plate 30. Guide posts 26 are fixed at the front and rear of the left and right sides of the horizontal fixed plate 23. The upper part of the guide post 26 extends out of the top surface of the horizontal fixed plate 23 and is fixed with a guide sleeve 27. The guide sleeve 27 is inserted into the corresponding guide through hole formed on the floating air intake platform plate 30. The outer side wall of the guide sleeve 27 is close to or in close contact with the inner side wall of the corresponding guide through hole.

[0032] An air passage adapter plate 40 is inserted into the upper part of the connecting bushing 25. The connecting bushing 25 is inserted into the middle through hole of the air passage adapter plate 40, and there is a gap between its outer side wall and the inner side wall of the middle through hole. A spring 1 is inserted into the connecting bushing 25. The bottom end of the spring 1 is applied to the top surface of the horizontal fixed plate 23, and the top end is applied to the bottom surface of the floating air intake platform plate 30. The top surface of the floating air intake platform plate 30 is pressed against the bottom surface of the air passage adapter plate 40 and fixed with bolts. An air passage output platform 50 is fixed to the top surface of the connecting bushing 25, and the bottom surface of the air passage output platform 50 is in close contact with the top surface of the air passage adapter plate 40. Through the elastic force of the spring 1, the top surface of the air passage adapter plate 40 can always be in close contact with the bottom surface of the air passage output platform 50 to achieve a seal. At the same time, it will not lock it. Its elastic force is moderate, so it can ensure that the air passage output platform 50 can rotate normally and change the blowing path.

[0033] A protective cover is provided on the top surface of the bottom housing 10. The top surface of the edge of the horizontal fixing plate 23 presses against the bottom surface of the top plate of the protective cover. The components above the horizontal fixing plate 23 extend out of the corresponding through holes on the top plate of the protective cover. The moving servo motor 28 is inserted into the protective cover. When it runs, the protective cover moves left and right with the horizontal fixing plate 23.

[0034] Furthermore, the moving mechanism 20 includes a moving servo motor 28 fixed to the right top surface of the top plate of the bottom housing 10. The bottom end of the output shaft of the moving servo motor 28 extends out of the bottom surface of the top plate of the bottom housing 20 and is fixed with a drive synchronous pulley 281. The left side of the bottom surface of the top plate of the bottom housing 10 is movably connected to a transmission synchronous pulley 11 through a hinge shaft. The transmission synchronous belt 12 is tensioned on the drive synchronous pulley 281 and the transmission synchronous pulley 11. The transmission synchronous belt 12 is located in the bottom housing 10. A side guide moving plate 22 is fixed in the middle of the transmission synchronous belt 12. The side guide moving plate 22 is inserted into the left-right extending transverse through groove 13 formed at the rear of the top plate of the bottom housing 10 and cooperates with the transverse through groove 13. The middle part of the side guide moving plate 22 extends out of the top of the transverse through groove 13.

[0035] Furthermore, the top surface of the top plate of the bottom housing 10 is fixed with a left-right extending guide rail 2, and the moving block 21 is inserted into the guide rail 2 and cooperates with the guide rail 2.

[0036] Furthermore, a bottom cover plate 14 is fixed on the bottom surface of the bottom housing 10, and the bottom cover plate 14 covers the transmission synchronous belt 12, the drive synchronous pulley 281 and the transmission synchronous pulley 11.

[0037] Furthermore, the right side wall of the floating air intake platform plate 30 is formed with a plurality of horizontal air intake holes 31 extending to the left. The left end of the horizontal air intake hole 31 communicates with the bottom end of the corresponding vertical hole 32 formed on the right top surface of the floating air intake platform plate 30. The top end of the vertical hole 32 communicates with the right end of the corresponding top surface guide groove 33 formed on the top surface of the floating air intake platform plate 30. The foremost top surface guide groove 33 is located at the front right side of the floating air intake platform plate 30. The middle part of the remaining top surface guide grooves 33 is arc-shaped around the connecting bushing 25, and its other end is located at the top surface of the rear part of the floating air intake platform plate 30.

[0038] The top surface of the right to rear part of the air passage adapter plate 40 is formed with an arc-shaped protrusion 41. The rear top surface of the arc-shaped protrusion 41 is formed with a plurality of first vertical air guide holes 42. The bottom end of the first vertical air guide hole 42 corresponds to and communicates with the corresponding top surface guide groove 33 of the floating air intake platform plate 30. The top surface of the right part of the arc-shaped protrusion 41 is formed with an upper arc-shaped groove 43. The bottom surface of the front end of the upper arc-shaped groove 43 is formed with a second vertical air guide hole 44. The bottom end of the second vertical air guide hole 44 communicates with and corresponds to the left end of the top surface guide groove 33 of the front part of the floating air intake platform plate 30.

[0039] A sealing gasket is sandwiched between the bottom surface of the air passage adapter plate 40 and the top surface of the floating air intake platform plate 30. Corresponding through grooves are formed at the sealing gasket locations of all top surface guide grooves 33. The sealing gasket is not shown in the attached drawing.

[0040] The top surface of the left end of the gas path adapter plate 40 is formed with a first arc-shaped protrusion 45, and the top surface of the first arc-shaped protrusion 45 and the top surface of the arc-shaped protrusion 41 are on the same plane.

[0041] Furthermore, the top surface of the air output platform 50 has raised strips 51 extending forward and backward on the left and right sides, and raised strips 51 extending left and right on the front and rear sides. Each raised strip 51 has two vertically extending air outlet holes 52 formed in the middle. The bottom end of the vertical air outlet hole 52 is connected to one end of the waist-shaped concave hole 53 formed on the bottom surface of the air output platform 50. The other end of the waist-shaped concave hole 53 is connected to and corresponds to the upper arc groove 43 or the corresponding first vertical air guide hole 42.

[0042] In this embodiment, the pneumatic output platform 50 can move left and right by moving the servo motor 28. A sensing bending plate can be fixed on one side wall of the moving block 21, and a proximity switch is fixed at the edge of the top surface of the top plate of the bottom housing 10. The moving block 21 can move left and right by moving the servo motor 28. When it moves, if the sensing bending plate is above the sensing end of the corresponding proximity switch and is sensed by it, it means that it has moved into place.

[0043] In use, the outer ends of all horizontal air inlets 31 can be connected to air inlet pipes. The gas enters the corresponding top guide groove 33 from the horizontal air inlets 31, then enters the corresponding upper arc groove 43 or the first vertical air guide hole 42, and then enters the corresponding waist-shaped concave hole 53. Finally, it is discharged from the corresponding vertical air outlet hole 52. An air outlet connector can be installed on the protrusion 51 at the vertical air outlet hole 52, so that the gas can be discharged from the corresponding air outlet connector. It can be operated by rotating the servo motor 24 to make the air path output platform 50 rotate, so that the corresponding vertical air outlet hole 52 can be discharged, and the corresponding vertical air outlet hole 52 can be blocked. It is easy to adjust.

Claims

1. A rotary vacuum holding mechanism, comprising a bottom housing (10), characterized in that: A moving mechanism (20) is installed on the bottom housing (10). A side guide moving plate (22) is fixed on the side wall of the moving block (21) of the moving mechanism (20). A horizontal fixing plate (23) is fixed on the upper part of the side guide moving plate (22). A rotary servo motor (24) is fixed in the middle of the bottom surface of the horizontal fixing plate (23). A connecting bushing (25) is fixed on the output shaft of the rotary servo motor (24). The connecting bushing (25) is inserted into the middle through hole of the horizontal fixing plate (23). There is a gap between the outer side wall of the connecting bushing (25) and the inner side wall of the middle through hole. A floating air intake platform plate (30) is provided above the horizontal fixed plate (23). A connecting bushing (25) is inserted into the middle through hole of the floating air intake platform plate (30). Guide posts (26) are fixed at the front and rear of the left and right sides of the horizontal fixed plate (23). The upper part of the guide post (26) extends out of the top surface of the horizontal fixed plate (23) and is fixed with a guide sleeve (27). The guide sleeve (27) is inserted into the corresponding guide through hole formed on the floating air intake platform plate (30). The outer side wall of the guide sleeve (27) is close to or adjacent to the inner side wall of the corresponding guide through hole. The upper part of the connecting bushing (25) is fitted with an air passage adapter plate (40). The connecting bushing (25) is fitted in the middle through hole of the air passage adapter plate (40). There is a gap between its outer side wall and the inner side wall of the middle through hole. A spring (1) is fitted on the connecting bushing (25). The bottom end of the spring (1) is applied to the top surface of the horizontal fixed plate (23), and the top end is applied to the bottom surface of the floating air intake platform plate (30). The top surface of the floating air intake platform plate (30) is pressed against the bottom surface of the air passage adapter plate (40) and fixed by bolts. An air passage output platform (50) is fixed on the top surface of the connecting bushing (25). The bottom surface of the air passage output platform (50) is close to the top surface of the air passage adapter plate (40).

2. The rotary vacuum holding mechanism according to claim 1, characterized in that: The moving mechanism (20) includes a moving servo motor (28) fixed to the right top surface of the top plate of the bottom housing (10). The bottom end of the output shaft of the moving servo motor (28) extends out of the bottom surface of the top plate of the bottom housing (20) and is fixed with a drive synchronous pulley (281). The left side of the bottom surface of the top plate of the bottom housing (10) is movably connected to a transmission synchronous pulley (11) through a hinge shaft. The transmission synchronous belt (12) is tensioned on the drive synchronous pulley (281) and the transmission synchronous pulley (11). The transmission synchronous belt (12) is located in the bottom housing (10). A side guide moving plate (22) is fixed in the middle of the transmission synchronous belt (12). The side guide moving plate (22) is inserted into the left and right extending transverse through groove (13) formed at the rear of the top plate of the bottom housing (10) and cooperates with the transverse through groove (13). The middle part of the side guide moving plate (22) extends out of the top of the transverse through groove (13).

3. The rotary vacuum holding mechanism according to claim 2, characterized in that: The top surface of the top plate of the bottom housing (10) is fixed with a left-right extending guide rail (2), and the moving block (21) is inserted into the guide rail (2) and cooperates with the guide rail (2).

4. The rotary vacuum holding mechanism according to claim 1, characterized in that: A bottom cover plate (14) is fixed on the bottom surface of the bottom housing (10), and the bottom cover plate (14) covers the transmission synchronous belt (12), the drive synchronous pulley (281) and the transmission synchronous pulley (11).

5. A rotary vacuum holding mechanism according to claim 1, characterized in that: The right side wall of the floating air intake platform plate (30) is formed with a plurality of horizontal air intake holes (31) extending to the left. The left end of the horizontal air intake hole (31) is connected to the bottom end of the corresponding vertical hole (32) formed on the right top surface of the floating air intake platform plate (30). The top end of the vertical hole (32) is connected to the right end of the corresponding top surface guide groove (33) formed on the top surface of the floating air intake platform plate (30). The foremost top surface guide groove (33) is located in front of the right side of the floating air intake platform plate (30). The middle part of the remaining top surface guide grooves (33) is arc-shaped around the connecting bushing (25), and the other end is located on the top surface of the rear part of the floating air intake platform plate (30). The top surface of the right to rear part of the air passage adapter plate (40) is formed with an arc-shaped protrusion (41). The rear top surface of the arc-shaped protrusion (41) is formed with a plurality of first vertical air passage holes (42). The bottom end of the first vertical air passage hole (42) corresponds to and communicates with the corresponding top surface guide groove (33) of the floating air intake platform plate (30). The top surface of the right part of the arc-shaped protrusion (41) is formed with an upper arc-shaped groove (43). The bottom surface of the front end of the upper arc-shaped groove (43) is formed with a second vertical air passage hole (44). The bottom end of the second vertical air passage hole (44) communicates with and corresponds to the left end of the top surface guide groove (33) of the front part of the floating air intake platform plate (30).

6. A rotary vacuum holding mechanism according to claim 5, characterized in that: The top surface of the air output platform (50) has raised strips (51) extending forward and backward on the left and right sides, and raised strips (51) extending left and right on the front and rear sides of the top surface of the air output platform (50). Each raised strip (51) has two vertically extending air outlet holes (52) in the middle. The bottom end of the vertical air outlet hole (52) is connected to one end of the waist-shaped concave hole (53) formed on the bottom surface of the air output platform (50). The other end of the waist-shaped concave hole (53) is connected to and corresponds to the upper arc groove (43) or the corresponding first vertical air guide hole (42).

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