CN107497862B - Rotating disc pressing-down adjusting device - Google Patents
Rotating disc pressing-down adjusting device Download PDFInfo
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- CN107497862B CN107497862B CN201710710347.9A CN201710710347A CN107497862B CN 107497862 B CN107497862 B CN 107497862B CN 201710710347 A CN201710710347 A CN 201710710347A CN 107497862 B CN107497862 B CN 107497862B
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- oil cylinder
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- 238000003825 pressing Methods 0.000 claims abstract description 78
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 14
- 229910052802 copper Inorganic materials 0.000 claims description 14
- 239000010949 copper Substances 0.000 claims description 14
- 238000006073 displacement reaction Methods 0.000 claims description 14
- 230000000881 depressing effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 6
- 238000005096 rolling process Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000227287 Elliottia pyroliflora Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/16—Adjusting or positioning rolls
- B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
- B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
- B21B31/24—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal by screws
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
- B21D3/04—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers arranged on axes skew to the path of the work
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Support Of The Bearing (AREA)
- Machine Tool Units (AREA)
Abstract
The invention discloses a rotary table pressing and adjusting device which comprises a pressing screw rod (1), a quick-opening oil cylinder (6) and a rotary table (12) which are sequentially arranged from top to bottom, wherein the central line of the pressing screw rod (1), the central line of the quick-opening oil cylinder (6) and the central line of the rotary table (12) are all arranged in the vertical direction, the pressing screw rod (1) can move in the vertical direction and drive the quick-opening oil cylinder (6) and the rotary table (12) to move in the same direction, and the rotary table (12) can rotate. The rotary table pressing adjusting device not only changes the existing rigid connection structure, but also has simple and compact structure, large pressing adjusting range of the roller rotary table, high detection precision, easy detection and rapid and automatic adjustment of roller spacing and angle.
Description
Technical Field
The invention relates to the field of steel rolling production equipment, in particular to a rotary table pressing adjusting device.
Background
The inclined roller straightener is mainly applied to bar and steel pipe production units and is widely applied in the metallurgical industry. The bar and the steel pipe can be straightened by the cross roll straightener, so that the shape tolerance of the product is improved, and the quality is further improved.
The roll gap and the rotation angle of the rolls of the cross roll straightener are required to be adjusted according to the diameter of the rolled material, and the adjustment precision requirement is high. In the rolling process, the roller receives the rolling force in the vertical direction, and the pressing device needs to meet the performances of high adjustment precision, simple operation, overload protection and larger bearing capacity.
At present, the roller pressing and adjusting device applied to the straightener mostly adopts an electric pressing and hydraulic balance structure, a pressing screw rod is generally in a rigid connection state with a quick-opening oil cylinder and a lifting platform, the requirement on parallelism tolerance of the pressing screw rod and a stand column of a stand is high, and the internal stress concentration can be caused by uneven system stress due to the accuracy of self processing in the installation and use processes of the pressing and adjusting device.
The rotating disc structure currently applied adopts a flat plate structure, the flat plate is provided with a central hole and rotates around a pin shaft, and compared with the rotating disc structure of a T-shaped pin shaft, the flat plate structure has poor rigidity and poor system stability.
Disclosure of Invention
In order to solve the defects of poor turntable rigidity and unstable system of the traditional turntable pressing and adjusting device, the invention provides the turntable pressing and adjusting device which not only changes the traditional rigid connection structure, but also has simple and compact structure, large roll turntable pressing and adjusting range, high detection precision, easy detection and rapid and automatic adjustment of the roll spacing and angle.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a carousel presses down adjusting device, includes from the top down screw rod, quick-opening cylinder and carousel that set gradually, and the central line of screw rod, the central line of quick-opening cylinder and the central line of carousel all set up along vertical direction, and screw rod can follow vertical direction and drive quick-opening cylinder and carousel syntropy removal, and screw rod only can reciprocate in the scope of first clearance for quick-opening cylinder.
The upper end of the screw-down lead screw is connected with a displacement sensor and a driving mechanism, the displacement sensor can detect the displacement of the screw-down lead screw moving along the vertical direction, and the driving mechanism can drive the screw-down lead screw to move along the vertical direction.
The rotary table pressing adjusting device further comprises a frame, the frame comprises a cross beam and a plurality of stand columns, two ends of the cross beam are connected and fixed with the stand columns, a pressing nut is sleeved outside the pressing screw rod, the pressing screw rod is in threaded connection with the pressing nut, and the pressing nut is fixedly connected with the cross beam.
The lower extreme of screw down is equipped with reducing portion and connector, and this connector is located the below of this reducing portion, and the external diameter of this reducing portion is less than the external diameter of this connector, and the lower extreme of screw down passes through the end cover to be connected with the piston rod of quick-opening hydro-cylinder, and the end cover can prevent that the connector of screw down from breaking away from.
The upper end of the end cover is provided with an annular inner flange, the inner flange at the upper end of the end cover is sleeved outside the diameter reducing part of the screw rod, the inner diameter of the inner flange at the upper end of the end cover is smaller than the outer diameter of the connector of the screw rod, the lower surface of the inner flange at the upper end of the end cover and the upper surface of the connector of the screw rod are planes parallel to the horizontal plane, the distance between the lower surface of the inner flange at the upper end of the end cover and the upper surface of the connector of the screw rod is the first gap, and the lower end of the end cover is fixedly connected with the upper end of the piston rod of the quick-opening oil cylinder.
A spherical pad is arranged between the lower end of the screw rod and the piston rod of the quick-opening oil cylinder, the lower surface of the connector of the screw rod is a spherical surface protruding downwards, the upper surface of the spherical pad is matched with the lower surface of the connector of the screw rod, the upper surface of the spherical pad is in matched connection with the lower surface of the connector of the screw rod, and the lower end of the spherical pad is connected with the piston rod of the quick-opening oil cylinder through a flat key.
The upper end fixedly connected with clamp plate of carousel, the lower extreme fixedly connected with round pin axle of quick-opening hydro-cylinder, the clamp plate cover is located outside the round pin axle, clamp plate and round pin axle joint, the carousel only can reciprocate in the scope of second clearance for quick-opening hydro-cylinder.
The lower extreme of round pin axle is equipped with annular outward flange, and the cover is equipped with the axle sleeve between clamp plate and the round pin axle, and axle sleeve and clamp plate fixed connection, the external diameter of the outward flange of round pin axle lower extreme is greater than the internal diameter of axle sleeve, axle sleeve and round pin axle clearance fit, and the upper surface of the outward flange of round pin axle lower extreme and the lower surface of axle sleeve are the plane parallel with the horizontal plane, and the distance between the upper surface of the outward flange of round pin axle lower extreme and the lower surface of axle sleeve is the second clearance.
The rotary table pressing and adjusting device further comprises a lifting platform, the lifting platform comprises a guide sleeve, a rotary table sleeve and a connecting plate, the rotary table sleeve is arranged outside the rotary table, the guide sleeve is in an upright state, the guide sleeve and the rotary table sleeve are fixedly connected through the connecting plate, a copper sleeve is sleeved between the rotary table sleeve and the rotary table, the pressing plate is annular, an annular sliding plate is fixedly arranged at the lower end of the edge of the pressing plate in a matched mode, the inner diameter of the annular sliding plate is smaller than that of the copper sleeve, and the outer diameter of the lower end of the rotary table is larger than that of the rotary table sleeve.
The turntable depressing adjustment device further comprises a frame, the frame comprises a cross beam and a plurality of stand columns, the cross beam is located on the upper portions of the stand columns, the guide sleeve is sleeved outside the lower portions of the stand columns, the guide sleeve can slide up and down along the stand columns, the cross beam is fixedly provided with a balance oil cylinder, the balance oil cylinder is connected with a connecting plate of a lifting platform through a balance pull rod, and the balance oil cylinder can drive the lifting platform and the turntable to move along the vertical direction through the balance pull rod.
The beneficial effects of the invention are as follows: the rotary table pressing adjusting device not only changes the existing rigid connection structure, but also has simple and compact structure, large pressing adjusting range of the roller rotary table, high detection precision, easy detection and rapid and automatic adjustment of roller spacing and angle.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
Fig. 1 is a front view of a dial depression adjustment apparatus according to the present invention.
Fig. 2 is an enlarged schematic view of the first gap portion.
Fig. 3 is an enlarged schematic view of the second gap portion.
1. Pressing down the screw rod; 2. pressing down the nut; 3. a displacement sensor; 4. a balance cylinder; 5. a frame; 6. quick-opening oil cylinder; 7. a balance pull rod; 8. a pressing plate; 9. a pin shaft; 10. a lifting platform; 11. a copper sleeve; 12. a turntable; 13. a shaft sleeve; 14. a cross beam; 15. a column; 16. an end cap; 17. a spherical pad; 18. a guide sleeve; 19. a turntable sleeve; 20. a connecting plate; 21. a circular ring-shaped sliding plate.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
The utility model provides a carousel presses down adjusting device, including from the top down screw rod 1 that sets gradually, quick-opening hydro-cylinder 6 and carousel 12, the central line of screw rod 1 is pressed down, the central line of quick-opening hydro-cylinder 6 and the central line of carousel 12 all set up along vertical direction, screw rod 1 can be followed vertical direction and drive quick-opening hydro-cylinder 6 and carousel 12 syntropy and remove, can drive quick-opening hydro-cylinder 6 and carousel 12 also upwards remove when screw rod 1 upwards moves promptly, can drive quick-opening hydro-cylinder 6 and carousel 12 also downwards move when screw rod 1 moves downwards, carousel 12 can autorotate, carousel 12 can use the central line of carousel 12 as the axle rotation promptly, as shown in fig. 1 and 2.
In the present embodiment, the upper end of the screw-down lead screw 1 is connected with a displacement sensor 3 and a driving mechanism, the displacement sensor 3 being capable of detecting displacement of the screw-down lead screw 1 moving in the vertical direction, the driving mechanism being capable of driving the screw-down lead screw 1 to move in the vertical direction. The rotary table pressing adjusting device further comprises a frame 5, the frame 5 comprises a cross beam 14 and a plurality of upright posts 15, two ends of the cross beam 14 are connected and fixed with the upright posts 15, a pressing nut 2 is sleeved outside the pressing screw rod 1, the pressing screw rod 1 is in threaded fit with the pressing nut 2, and the pressing nut 2 is fixedly connected with the cross beam 14 as shown in fig. 1.
Specifically, a displacement sensor 3 is installed at the tail part (upper end) of the screw-down screw 1, a key groove is formed in the screw-down screw 1, a sliding key is installed on the screw-down screw 1, a driving mechanism (worm and gear reduction mechanism) drives the screw-down screw 1 to rotate, the screw-down screw 1 is matched with a screw-down nut through a screw pair, the screw-down nut 2 is fixed in a frame 5, the screw-down screw 1 rotates while the position of the screw-down nut 2 is fixed, the screw-down screw 1 can move up and down, the sliding key slides in the key groove of a central hole of a worm and gear reduction machine, the displacement sensor 3 at the tail part can measure the displacement of the screw-down screw 1 in the vertical direction, the lifting distance of a turntable 12 is controlled, and a roller is fixed below the turntable 12, so that roll gap control is realized.
In this embodiment, the lower end of the screw-down screw 1 is provided with a reduced diameter portion and a connector, the connector is located below the reduced diameter portion, the outer diameter of the reduced diameter portion is smaller than that of the connector, the lower end of the screw-down screw 1 is connected with a piston rod of the quick-opening oil cylinder 6 through an end cover 16, the lower end of the screw-down screw 1 is clamped with the upper end of the end cover 16, and the end cover 16 can prevent the connector of the screw-down screw 1 from being separated, as shown in fig. 2.
The upper end of the end cover 16 is provided with an annular inner flange, the inner flange at the upper end of the end cover 16 is sleeved outside the diameter reducing part of the screw-down screw 1, the inner diameter of the inner flange at the upper end of the end cover 16 is smaller than the outer diameter of the connector of the screw-down screw 1, the lower surface of the inner flange at the upper end of the end cover 16 and the upper surface of the connector of the screw-down screw 1 are both planes parallel to the horizontal plane, the distance between the lower surface of the inner flange at the upper end of the end cover 16 and the upper surface of the connector of the screw-down screw 1 is a first gap A, and the lower end of the end cover 16 is fixedly connected with the upper end of the piston rod of the quick-opening oil cylinder 6. When the piston rod of the balance cylinder 4 is extended, the quick-opening cylinder 6 can move up and down within the range of the first gap with respect to the screw-down rod 1. When the piston rod of the balance cylinder 4 is retracted, the screw-down rod 1 and the piston rod of the quick-opening cylinder 6 can be locked, namely the screw-down rod 1 and the piston rod of the quick-opening cylinder 6 cannot move or rotate relatively.
A spherical pad 17 made of copper is arranged between the lower end of the screw rod 1 and a piston rod of the quick-opening oil cylinder 6, the lower surface of a connector of the screw rod 1 is a spherical surface protruding downwards, the upper surface of the spherical pad 17 is matched with the lower surface of the connector of the screw rod 1, the upper surface of the spherical pad 17 can be connected with the lower surface of the connector of the screw rod 1 in a matched manner, and the lower end of the spherical pad 17 is connected with the upper part of the piston rod of the quick-opening oil cylinder 6 through a flat key.
The quick-opening oil cylinder 6 is inversely hung at the lower end of the screw-down oil cylinder 1 through the flange plate, based on the characteristics, when the balance pull rod 7 lifts the lifting platform 10, the system clearance A can be eliminated, and the head of the screw-down oil cylinder 1 is pressed against the spherical pad of the quick-opening oil cylinder 6 in a contact manner by the spherical pair, so that stress concentration is eliminated. The quick-opening cylinder 6 may rotate about the screw 1, but an external bracket is provided to restrict the quick-opening cylinder 6 from rotating.
In this embodiment, the upper end of the turntable 12 is fixedly connected with the pressing plate 8, the lower end of the cylinder barrel of the quick-opening oil cylinder 6 is fixedly connected with the pin shaft 9, the pressing plate 8 is sleeved outside the pin shaft 9, the pressing plate 8 is clamped with the pin shaft 9, the pressing plate 8 can prevent the pin shaft 9 from separating, and the turntable 12 can rotate with the pin shaft 9 as a shaft, namely, the center line of the turntable 12 and the center line of the pin shaft 9 coincide, as shown in fig. 1 and 3.
The lower end of the pin shaft 9 is provided with an annular outer flange, a shaft sleeve 13 is sleeved between the pressing plate 8 and the pin shaft 9, the shaft sleeve 13 is fixedly connected with the pressing plate 8, the outer diameter of the outer flange at the lower end of the pin shaft 9 is larger than the inner diameter of the shaft sleeve 13, the shaft sleeve 13 is in clearance fit with the pin shaft 9, the upper surface of the outer flange at the lower end of the pin shaft 9 and the lower surface of the shaft sleeve 13 are planes parallel to the horizontal plane, the distance between the upper surface of the outer flange at the lower end of the pin shaft 9 and the lower surface of the shaft sleeve 13 is a second clearance B, and when a piston rod of the balance oil cylinder 4 extends out, the turntable 12 and the pressing plate 8 can move up and down relative to the quick-opening oil cylinder 6 within the range of the second clearance; when the piston rod of the balance cylinder 4 is retracted, the turntable 12 and the pressing plate 8 can be locked with the piston rod of the quick-opening cylinder 6, i.e. the turntable 12 and the piston rod of the quick-opening cylinder 6 cannot relatively move or rotate, as shown in fig. 3.
The pin shaft 9 is fixedly connected to the lower end of the cylinder barrel of the quick-opening oil cylinder 6 through a bolt, the pin shaft 9 is sleeved in a central hole of the pressing plate 8, and a shaft sleeve 13 with a flange is arranged in the central hole of the pressing plate 8. Based on the characteristics, the connecting assembly of the turntable 12 and the pressing plate 8 can rotate around the pin shaft 9, so that the angle adjustment of the roller is realized.
In this embodiment, the rotary table pressing adjustment device further includes a lifting platform 10, where the lifting platform 10 includes a guide sleeve 18, a rotary table sleeve 19 and a connecting plate 20, the rotary table sleeve 19 is sleeved outside the rotary table 12, the guide sleeve 18 is in an upright state, the guide sleeve 18 and the rotary table sleeve 19 are connected and fixed by the connecting plate 20, a copper sleeve 11 is sleeved between the rotary table sleeve 19 and the rotary table 12, the pressing plate 8 is in a circular shape, a circular ring-shaped sliding plate 21 which is matched and fixed with copper is arranged at the lower end of the edge of the pressing plate 8, the inner diameter of the circular ring-shaped sliding plate 21 is smaller than the inner diameter of the copper sleeve 11, and the outer diameter of the lower end of the rotary table 12 is larger than the outer diameter of the rotary table sleeve 19, as shown in fig. 1 and 3.
The frame 5 contains crossbeam 14 and a plurality of stand 15, and crossbeam 14 is located the upper portion of stand 15, and outside the lower part of stand 15 was located to uide bushing 18 cover, uide bushing 18 can follow stand 15 and slide from top to bottom, is fixed with balanced hydro-cylinder 4 on the crossbeam 14, and balanced hydro-cylinder 4 is connected fixedly through balanced pull rod 7 and the connecting plate 20 of lift platform 10, and balanced hydro-cylinder 4 can be through the removal of balanced pull rod 7 drive lift platform 10 and carousel 12 along vertical direction. The screw-down rod 1, the quick-opening oil cylinder 6 and the rotary table 12 are all positioned between the upright posts 15.
Specifically, the balance cylinder 4 is fixed on the frame 5, and is connected with the lifting platform 10 through a T-shaped head on the balance pull rod 7, and the lifting platform 10 is provided with a guide sleeve which can slide up and down on the upright post of the frame 5. The hollow shaft of the rotary table 12 penetrates into the rotary table sleeve 19 of the lifting platform 10 from bottom to top, 3 copper sleeves 11 are installed in the rotary table sleeve 19 of the lifting platform 10, the 3 copper sleeves 11 are uniformly distributed at 120 degrees, and the copper sleeves 11 are fixedly connected with the rotary table sleeve 19 of the lifting platform 10. The upper part of the turntable 12 is fixedly connected with the pressing plate 8 into a whole through bolts, the outer diameter of the pressing plate 8 is larger than the inner diameter of the turntable sleeve 19, the pressing plate 8 is lapped on the turntable sleeve 19 of the lifting platform 10, and a circular sliding plate 21 is arranged on the lap joint range of the circular ring.
The center line of the screw rod 1, the center line of the screw nut 2, the center line of the quick-opening oil cylinder 6, the center line of the pressing plate 8, the center line of the pin shaft 9, the center line of the copper sleeve 11, the center line of the rotary table 12, the center line of the shaft sleeve 13, the center line of the end cover 16, the center line of the spherical pad 17, the center line of the rotary table sleeve 19 and the center line of the annular slide plate 21 are overlapped.
The working process of the rotary table depressing adjusting device is described as follows:
1. in the rolling working state, the balance pull rod 7 of the balance oil cylinder 4 is lifted upwards, namely the balance oil cylinder 4 is in a rod cavity for oil feeding, a first gap A is generated between the lower surface of the inner flange at the upper end of the end cover 16 and the upper surface of the connector of the screw rod 1, and a second gap B is generated between the upper surface of the outer flange at the lower end of the pin shaft 9 and the lower surface of the shaft sleeve 13. At this time, the system (screw rod 1, quick-opening oil cylinder 6, lifting platform 10 and rotary table 12) is compacted in the vertical direction without gaps. The turntable 12 is tightly attached to the lower surfaces of the pressing plate 8 and the quick-opening oil cylinder, and cannot rotate around the pin shaft 9 and the central hole (the copper bush 11 on the central hole) of the lifting platform 10.
The screw rod 1 is driven by a motor and a worm gear reducer to rotate in the screw nut 2, and can slide up and down according to different rotation directions, and meanwhile, the lifting platform 10 is driven to move up and down, and the adjustment of the roll gap height direction is realized through accurate measurement of the displacement sensor 3.
2. In the adjustment state, the balance pull rod 7 of the balance cylinder 4 extends downwards, namely the balance cylinder 4 is in a rodless cavity oil feeding or non-pressure state.
At this time, the quick-opening cylinder 6 is hung on the screw-down rod 1, and the first gap a between the lower surface of the inner flange at the upper end of the end cap 16 and the upper surface of the joint of the screw-down rod 1 is eliminated. The pressing down of the screw 1 creates a gap between the ball pad 17, the size of which is equal to the first gap a. It will be appreciated that the original first gap a is transferred from between the screw 1 and the end cap 16 to between the screw 1 and the spherical pad 17.
The pressing plate 8, the rotary plate 12 and the lifting platform 10 are hung on the T-shaped head of the pin shaft 9, and a second gap B between the upper surface of the outer flange at the lower end of the pin shaft 9 and the lower surface of the shaft sleeve 13 is eliminated. A gap is created between the pressure plate 8 and the quick-opening cylinder 6, the size of which is equal to the second gap B. It can be understood that the original second gap B is transferred from between the pin 9 and the sleeve 13 to between the quick-opening cylinder 6 and the platen 8.
At this time, the system (screw 1, quick-opening cylinder 6, lifting platform 10, turntable 12) generates a gap in the vertical direction. The turntable 12 and the pressing plate 8 can rotate around the pin shaft 9 and the central hole (and the copper sleeve 11 thereon) of the lifting platform 10.
The foregoing description of the embodiments of the invention is not intended to limit the scope of the invention, so that the substitution of equivalent elements or equivalent variations and modifications within the scope of the invention shall fall within the scope of the patent. In addition, the technical characteristics and technical scheme, technical characteristics and technical scheme can be freely combined for use.
Claims (3)
1. The rotary plate pressing and adjusting device is characterized by comprising a pressing screw rod (1), a quick-opening oil cylinder (6) and a rotary plate (12) which are sequentially arranged from top to bottom, wherein the central line of the pressing screw rod (1), the central line of the quick-opening oil cylinder (6) and the central line of the rotary plate (12) are all arranged along the vertical direction, the pressing screw rod (1) can move along the vertical direction and drive the quick-opening oil cylinder (6) and the rotary plate (12) to move in the same direction, and the rotary plate (12) can rotate;
the lower end of the screw-down screw rod (1) is provided with a connector, the lower end of the screw-down screw rod (1) is connected with a piston rod of the quick-opening oil cylinder (6) through an end cover (16), and the end cover (16) can prevent the connector of the screw-down screw rod (1) from being separated;
the lower end of the screw-down lead screw (1) is also provided with a diameter reducing part, the diameter reducing part is positioned above the connector, the outer diameter of the diameter reducing part is smaller than the outer diameter of the connector, the upper end of the end cover (16) is provided with an annular inner flange, the inner flange at the upper end of the end cover (16) is sleeved outside the diameter reducing part of the screw-down lead screw (1), the inner diameter of the inner flange at the upper end of the end cover (16) is smaller than the outer diameter of the connector of the screw-down lead screw (1), the lower surface of the inner flange at the upper end of the end cover (16) and the upper surface of the connector of the screw-down lead screw (1) are both planes parallel to the horizontal plane, the distance between the lower surface of the inner flange at the upper end of the end cover (16) and the upper surface of the connector of the screw-down lead screw (1) is a first gap, the lower end of the end cover (16) is fixedly connected with the upper end of a piston rod of the quick-opening cylinder (6), and the quick-opening cylinder (6) can move up and down in the range of the first gap relative to the screw-down lead screw (1);
a spherical pad (17) is arranged between the lower end of the screw rod (1) and a piston rod of the quick-opening oil cylinder (6), the lower surface of a connector of the screw rod (1) is a spherical surface protruding downwards, the upper surface of the spherical pad (17) is matched with the lower surface of the connector of the screw rod (1), the upper surface of the spherical pad (17) is in matched connection with the lower surface of the connector of the screw rod (1), and the lower end of the spherical pad (17) is connected with the piston rod of the quick-opening oil cylinder (6) through a flat key;
the upper end of the rotary table (12) is fixedly connected with a pressing plate (8), the lower end of a cylinder barrel of the quick-opening oil cylinder (6) is fixedly connected with a pin shaft (9), the pressing plate (8) is sleeved outside the pin shaft (9), the pressing plate (8) is clamped with the pin shaft (9), and the rotary table (12) can rotate by taking the pin shaft (9) as a shaft;
the lower end of the pin shaft (9) is provided with an annular outer flange, a shaft sleeve (13) is sleeved between the pressing plate (8) and the pin shaft (9), the shaft sleeve (13) is fixedly connected with the pressing plate (8), the outer diameter of the outer flange at the lower end of the pin shaft (9) is larger than the inner diameter of the shaft sleeve (13), the shaft sleeve (13) is in clearance fit with the pin shaft (9), the upper surface of the outer flange at the lower end of the pin shaft (9) and the lower surface of the shaft sleeve (13) are planes parallel to the horizontal plane, the distance between the upper surface of the outer flange at the lower end of the pin shaft (9) and the lower surface of the shaft sleeve (13) is a second gap, and the turntable (12) can move up and down in the range of the second gap relative to the quick-opening oil cylinder (6);
the rotary table pressing adjusting device comprises a rotary table pressing adjusting device, and is characterized by further comprising a lifting platform (10), wherein the lifting platform (10) comprises a guide sleeve (18), a rotary table sleeve (19) and a connecting plate (20), the rotary table sleeve (19) is sleeved outside the rotary table (12), the guide sleeve (18) is in an upright state, the guide sleeve (18) and the rotary table sleeve (19) are fixedly connected through the connecting plate (20), a copper sleeve (11) is sleeved between the rotary table sleeve (19) and the rotary table (12), a pressing plate (8) is in a circular ring shape, a circular ring-shaped sliding plate (21) is fixedly matched in the lower end of the edge of the pressing plate (8), the inner diameter of the circular ring-shaped sliding plate (21) is smaller than the inner diameter of the copper sleeve (11), and the outer diameter of the lower end of the rotary table (12) is larger than the outer diameter of the rotary table sleeve (19);
the turntable depressing and adjusting device further comprises a frame (5), wherein the frame (5) comprises a cross beam (14) and a plurality of upright posts (15), the cross beam (14) is positioned at the upper part of the upright posts (15), a guide sleeve (18) is sleeved outside the lower part of the upright posts (15), the guide sleeve (18) can slide up and down along the upright posts (15), the cross beam (14) is fixedly provided with a balance oil cylinder (4), the balance oil cylinder (4) is connected with a connecting plate (20) of a lifting platform (10) through a balance pull rod (7), and the balance oil cylinder (4) can drive the lifting platform (10) and the turntable (12) to move along the vertical direction through the balance pull rod (7);
when in an adjustment state, a balance pull rod (7) of the balance oil cylinder (4) extends downwards;
at the moment, the quick-opening oil cylinder (6) is hung on the screw-down screw rod (1), the first gap between the lower surface of the inner flange at the upper end of the end cover (16) and the upper surface of the connector of the screw-down screw rod (1) is eliminated, and the gap generated between the screw-down screw rod (1) and the spherical pad (17) is equal to the first gap;
the pressing plate (8), the rotary plate (12) and the lifting platform (10) are hung on a T-shaped head of the pin shaft (9), the second gap between the upper surface of the outer flange at the lower end of the pin shaft (9) and the lower surface of the shaft sleeve (13) is eliminated, and the gap generated between the pressing plate (8) and the quick-opening oil cylinder (6) is equal to the second gap.
2. The rotary table depression adjustment device according to claim 1, wherein the upper end of the depression screw (1) is connected with a displacement sensor (3) and a driving mechanism, the displacement sensor (3) being capable of detecting displacement of the depression screw (1) moving in the vertical direction, and the driving mechanism being capable of driving the depression screw (1) to move in the vertical direction.
3. The rotary table pressing-down adjusting device according to claim 1, wherein both ends of the cross beam (14) are fixedly connected with the upright posts (15), a pressing nut (2) is sleeved outside the pressing screw rod (1), the pressing screw rod (1) is in threaded connection with the pressing nut (2), and the pressing nut (2) is fixedly connected with the cross beam (14).
Priority Applications (1)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109778439A (en) * | 2019-01-29 | 2019-05-21 | 佛山职业技术学院 | A kind of sewing machine compresses the cylinder rod and rotation Axile connection structure of rotating mechanism |
| CN111672902B (en) * | 2020-06-19 | 2022-07-08 | 武汉钢铁有限公司 | Multifunctional test rolling mill capable of rolling special-shaped raw materials |
| CN111804763B (en) * | 2020-07-29 | 2024-08-23 | 太原科技大学 | Precise straightening unit for thin-wall metal pipe |
| CN114042765B (en) * | 2021-10-28 | 2024-07-26 | 太原恒信科达重工成套设备有限公司 | Guide plate adjusting device on perforating machine |
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