CN115890337A - Hydraulic drive rotary worktable - Google Patents

Abstract

The invention relates to the field of rotary tables, in particular to a hydraulic drive rotary table which comprises a base, wherein a platform is arranged on the base, the lower surface of a base station is fixedly connected onto the base, the middle position of the upper surface of the base station is rotatably connected with a cylinder, the upper end surface of the cylinder is fixedly connected with a rotary table, a plurality of connecting lugs are uniformly and fixedly connected onto the outer ring of the cylinder, an arc-shaped rod is rotatably connected onto the connecting lugs, a sliding block is fixedly connected onto the end part of the arc-shaped rod, the sliding block is slidably connected into a guide groove arranged on the base station, a first hydraulic cylinder is fixedly connected into the guide groove, and the output end of the first hydraulic cylinder is fixedly connected with the sliding block; the flexible moving stroke volume of a pneumatic cylinder converts the turned angle of cylinder efficient, and compares worm gear's transmission efficiency height, and this hydraulic drive rotary worktable when the installation simultaneously, a pneumatic cylinder can distribute the setting from top to bottom with the revolving stage, promptly, and a pneumatic cylinder is installed in the below of revolving stage, through rotating between curved rod and the slider about the tie point crisscross setting, reduces the space that the assembly occupy.

Description

Hydraulic drive rotary worktable

Technical Field

The invention relates to the field of rotary tables, in particular to a hydraulic drive rotary table.

Background

The rotary table is an ideal accessory for various numerical control milling machines and machining centers. The rotary table is horizontally arranged on the working table surface of the main machine, and the control system of the main machine or a specially matched control system is utilized to finish the indexing rotary motion of various machining coordinated with the main machine during working.

The current driving mode of the revolving platform is that a motor drives a worm to rotate, the worm is meshed with a driving worm wheel to rotate, and the worm wheel drives a working turntable to do revolving motion.

When the emergency, the revolving platform meets great resistance, leads to the tooth fracture easily, and the rotation of worm simultaneously needs the motor cooperation gearbox when the assembly transmission in fact, and the tip of transmission connection worm again, and this then needs to occupy more arrangement space, and is bulky, transports also comparatively difficultly.

Accordingly, a hydraulically driven rotary table has been proposed to address the above-mentioned problems.

Disclosure of Invention

In order to make up for the defects of the prior art, the invention provides a hydraulic drive rotary table.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a hydraulic drive rotary worktable which comprises a base, wherein a platform is arranged on the base and comprises a base platform, a first hydraulic cylinder and a rotary table; the lower surface of the base station is fixedly connected to the base, the middle position of the upper surface of the base station is rotatably connected with the cylinder, the upper end face of the cylinder is fixedly connected with the rotary table, a plurality of connecting lugs are uniformly and fixedly connected to the outer ring of the cylinder, arc-shaped rods are rotatably connected to the connecting lugs, the end portions of the arc-shaped rods are fixedly connected with the sliding blocks, the sliding blocks are slidably connected to the base station in a guide groove, a first hydraulic cylinder is fixedly connected to the guide groove, and the output end of the first hydraulic cylinder is fixedly connected with the sliding blocks; the embodiment of the invention provides a hydraulically-driven rotary table, which is characterized in that a first hydraulic cylinder is controlled to perform reciprocating telescopic motion, so that an arc rod pushes and pulls a cylinder to realize the rotation of the cylinder, and the rotary motion of a rotary table is realized; this hydraulic drive's swivel work head, at first regard as drive power through a pneumatic cylinder, in this embodiment, wearing and tearing are comparatively serious for slider spare part, and slider spare part simple structure, low in manufacturing cost, even change, compare worm gear wearing and tearing and changing, can reduce the expenditure, moreover the flexible moving stroke volume of a pneumatic cylinder converts the turned angle of cylinder into efficiently, and compare worm gear's transmission efficiency height, this hydraulic drive swivel work head when the installation simultaneously, a pneumatic cylinder can distribute the setting from top to bottom with the revolving stage, namely, a pneumatic cylinder is installed in the below of revolving stage, rotate the setting of staggering from top to bottom through rotating the tie point between arc pole and the slider, and rotate the tie point setting of staggering from top to bottom between arc pole and the engaging lug, realize the distribution from top to bottom of a pneumatic cylinder and revolving stage, reduce the space that the assembly occupy.

Preferably, a plurality of fixing blocks are uniformly and fixedly connected to the middle position of the base station, the number of the fixing blocks is consistent with that of the connecting lugs, the fixing blocks are fixedly connected with springs, and the ends of the springs are fixedly connected and extruded on the side walls of the connecting lugs; in this embodiment, dead point position also can appear in between arc pole and the cylinder, namely, the surface of the both ends place straight line perpendicular to cylinder of arc pole, when a pneumatic cylinder drive, the both ends of arc pole are in by the extruded state, make on the pneumatic cylinder drive power on can't transmit the cylinder, set up the cooperation of fixed block and spring for this, when the arc pole is pulled back to reset by a pneumatic cylinder, engaging lug lateral wall extrusion on the cylinder is on the spring, make the cylinder have a pivoted trend, when a pneumatic cylinder extrusion arc pole, the spring this moment has an eccentric promotion thrust to the cylinder, make the cylinder rotate smoothly, thereby guarantee the smooth rotation of revolving stage.

Preferably, the base platform is semi-cylindrical; a steering unit is arranged between the base and the platform; the steering unit comprises a fixed seat, the fixed seat is fixedly connected with a base, a semi-cylindrical rotary groove is formed in the fixed seat, the rotary groove is rotationally connected with the base station, rotating shafts are fixedly connected to two sides of the base station, the rotating shafts are rotationally connected with a supporting plate, and the supporting plate is fixed on the base; the two sides of the base station are symmetrically provided with semicircular cake-shaped gear discs, the gear discs are meshed with racks, the racks are connected to the base in a sliding manner, the two ends of each rack are fixedly connected with the output end of a second hydraulic cylinder, and the second hydraulic cylinders are fixedly connected to the base; the turning unit is arranged, so that the flexibility of the rotary table is increased on the basis of horizontal rotation of the rotary table, and the rotary table is suitable for rotary motion at various angles; the base does opposite telescopic motion with the hydraulic cylinder seat of two of one side, and a No. two pneumatic cylinders pull the rack, and No. two pneumatic cylinders push away the rack, and the rack removes, rubs the toothed disc and rotates to drive the platform and rotate, the angle that the revolving stage deflected the removal to one side simultaneously for the processing material of assembly on the revolving stage moves towards different angles, convenient processing or observation.

Preferably, a fixing mechanism is arranged between the supporting plate and the gear disc; the fixing mechanism comprises a fixing pin and a tension spring; a plurality of fixing holes are uniformly formed in the eccentric position of the gear disc, and the inner end part of each fixing pin penetrates through the corresponding support plate, is connected in the corresponding support plate in a sliding manner through a tension spring and is embedded into the corresponding fixing hole; treat that the material of processing is placed on the revolving stage, because of material self has gravity, when the revolving stage sets up to base lopsidedness, the gravity crushing platform of material and revolving stage has a trend of deflecting downwards, this trend is to No. two pneumatic cylinders, increase its pressure undoubtedly, when the oil pressure of No. two pneumatic cylinders is under-voltage, the platform deflects by oneself and droops, influence the processing of material, set up fixed establishment for this, after the inclination adjustment of platform, lax fixed pin, the fixed pin is in its pulling force embedding of connecting the extension spring in the fixed orifices, the inclination of platform just also is stabilized this moment.

Preferably, a push plate is arranged on the supporting plate, the push plate is L-shaped, a strip-shaped hole is formed in the middle of the push plate, the fixed pin is radially and slidably connected with the strip-shaped hole, the outer end of the fixed pin is radially and symmetrically connected with a rotating pin in a rotating mode, and the rotating pin is connected to a wavy surface formed on the surface of the push plate in a rolling mode; the wavy surface comprises a first-stage concave surface and a second-stage concave surface, and the thickness of the second-stage concave surface from the back surface of the push plate is larger than that of the first-stage concave surface from the back surface of the push plate; according to the fixing mechanism designed by the invention, when the rotating angle of the platform is adjusted, the fixing pin needs to be kept pulled outwards and separated from the fixing hole all the time, so that an operator needs to keep pulling the fixing pin with one hand, at the moment, the body is close to the workbench, and the safety risk is increased.

Preferably, the surface of the base station is provided with a plurality of convex limiting strips; a plurality of concave limiting grooves are formed in the rotary groove, and the limiting strips are connected in the limiting grooves in a sliding manner; because of the platform tilting setting, the gravity of material again, probably side pressure platform, when the base station was changeed the inslot rotation, axial skew can appear between base station and the commentaries on classics groove, through setting up spacing for this reason, when the base station was changeed the inslot rotation, retrained the rotation of base station, reduced the axis of base station and fixing base and inclined to one side the possibility.

Preferably, a plurality of oil holes are formed in each limiting groove, and the oil holes are communicated with the oil feeding pipe on the side wall of the fixed block; the surface of the limiting strip is provided with a plurality of oil ducts, the oil ducts extend to the central position of the base station, the middle position of the upper surface of the base station is provided with a rotating hole, a hollow rotating rod is rotatably connected in the rotating hole, the rotating rod is fixedly connected with a cylinder, a gap is formed in the position point where the rotating rod is fixedly connected with the cylinder, and the gap is communicated with the hollow part of the rotating rod; because of material gravity, the platform that the cooperation slope set up, the base station can aggravate the wearing and tearing of turn trough, through setting up the oilhole for this reason, relative rotation between base station and the turn trough is lubricated, guarantee the roughness on base station and turn trough surface, and reduce the wearing and tearing volume, when guaranteeing the platform slope, material slope degree of accuracy, lubricating oil flows to the commentaries on classics downthehole along the oil duct simultaneously, lubricating oil flows, and flow to the breach position along the bull stick, the lubricating oil overflow rotates hookup location at cylinder and base station, also lubricate handling it.

Preferably, a concave part is formed in the middle of the upper surface of the base station, and the cylinder is rotatably connected in the concave part; the concave part is arranged, so that the lubricating oil flowing out of the notch is stored in the concave part in a centralized manner, the lubricating oil overflowing on the surface of the platform is reduced, and the platform and materials are polluted.

Preferably, the support plate is provided with a plurality of rows of rectangular holes; the back tip of push pedal is equipped with the buckle, and the buckle embedding is in the rectangular hole, through the cooperation that sets up rectangular hole and buckle, when needing to press the perk with the tip of push pedal, promptly, when the buckle breaks away from the rectangular hole, the push pedal just can slide for change the round pin and roll at the wave face, prevent that the push pedal from removing by oneself, the fixed pin imbeds in the fixed orifices by oneself.

Preferably, a groove is formed in the corner position of the back face of the push plate, a roller body is rotationally connected in the groove, and the roller body is connected to the surface of the supporting plate in a rolling mode; through setting up the roll body, when the one end with the push pedal sticks up, the outer corner position of push pedal pushes up on the surface of backup pad this moment, and the corner needs slide along the backup pad this moment, and the roll body that sets up then makes things convenient for the push pedal to slide in the backup pad, and the machine converts the sliding friction between the outer corner position of push pedal and the backup pad into rolling friction.

The invention has the advantages that:

1. according to the hydraulically-driven rotary table, the first hydraulic cylinder is used as driving power, in the embodiment, sliding block parts are worn seriously and are simple in structure and low in manufacturing cost, even if the sliding block parts are replaced, the cost can be reduced compared with that of worm and gear wear replacement, the telescopic moving stroke amount of the first hydraulic cylinder is converted into the rotating angle of a cylinder, the efficiency is high compared with that of worm and gear transmission, and meanwhile, when the hydraulically-driven rotary table is installed, the first hydraulic cylinder and the rotary table can be distributed vertically, and the space occupied by assembly is reduced.

2. According to the invention, by arranging the steering unit, the flexibility of the rotary table is increased on the basis of horizontal rotation of the rotary table, and the rotary table is suitable for rotary motion at various angles, so that the processed materials assembled on the rotary table face different angles, and the processing or observation is facilitated.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a perspective view of a rotary table according to a first embodiment;

FIG. 2 is an exploded view of the platform and the mounting base in accordance with one embodiment;

FIG. 3 is a drawing showing the combination of the gear plate and the push plate according to the first embodiment;

FIG. 4 is a perspective view of a push plate according to one embodiment;

FIG. 5 is a diagram illustrating the combination of a base and a rotary slot according to an embodiment;

FIG. 6 is a perspective view of a base station according to one embodiment;

FIG. 7 is a perspective view of the base and the rotary shaft according to one embodiment;

FIG. 8 is a perspective view of the cylinder and the rotating rod according to the first embodiment;

FIG. 9 is a drawing showing the push plate and the roller body according to the second embodiment;

FIG. 10 is a drawing showing the support plate and the rectangular hole according to the second embodiment.

In the figure: the device comprises a base 1, a platform 2, a base table 3, a first hydraulic cylinder 4, a rotary table 5, a cylinder 6, a connecting lug 7, an arc-shaped rod 8, a sliding block 9, a fixing block 10, a fixing seat 11, a rotary groove 12, a supporting plate 13, a gear disc 14, a second hydraulic cylinder 16, a fixing pin 17, a tension spring 18, a fixing hole 19, a push plate 20, a strip-shaped hole 21, a rotary pin 22, a first-stage concave surface 23, a second-stage concave surface 24, a limiting strip 25, a limiting groove 26, an oil hole 27, an oil duct 28, a rotary rod 29, a notch 30, a concave portion 31, a rectangular hole 32, a buckle 33 and a roller body 34.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1 and 2, the hydraulic drive rotary table comprises a base 1, wherein a platform 2 is arranged on the base 1, and the platform 2 comprises a base 3, a first hydraulic cylinder 4 and a rotary table 5; the lower surface of the base station 3 is fixedly connected to the base 1, the middle position of the upper surface of the base station 3 is rotatably connected with a cylinder 6, the upper end surface of the cylinder 6 is fixedly connected with a rotary table 5, a plurality of connecting lugs 7 are uniformly and fixedly connected to the outer ring of the cylinder 6, an arc-shaped rod 8 is rotatably connected to the connecting lugs 7, the end part of the arc-shaped rod 8 is fixedly connected with a sliding block 9, the sliding block 9 is slidably connected to a guide groove arranged on the base station 3, a first hydraulic cylinder 4 is fixedly connected to the guide groove, and the output end of the first hydraulic cylinder 4 is fixedly connected with the sliding block 9; the embodiment of the invention provides a hydraulically-driven rotary workbench, which is characterized in that a first hydraulic cylinder 4 is controlled to perform reciprocating telescopic motion, so that an arc-shaped rod 8 pushes and pulls a cylinder 6 to realize the rotation of the cylinder 6, and the rotary motion of a rotary table 5 is realized; this hydraulic drive's swivel work head, at first regard as drive power through pneumatic cylinder 4, in this embodiment, wearing and tearing are comparatively serious for slider 9 spare part, and slider 9 spare part simple structure, low in manufacturing cost, even change, compare worm gear wearing and tearing and changing, can reduce the expenditure, moreover the flexible travel distance volume of pneumatic cylinder 4 converts the turned angle of cylinder 6 to efficient, and compare worm gear's transmission efficiency height, this hydraulic drive swivel work head when the installation simultaneously, pneumatic cylinder 4 can distribute the setting with revolving stage 5 from top to bottom, namely, pneumatic cylinder 4 installs the below at revolving stage 5, rotate the tie point and crisscross the setting from top to bottom through between arc pole 8 and slider 9, and rotate the tie point and crisscross the setting from top to bottom between arc pole 8 and engaging lug 7, realize the upper and lower distribution of pneumatic cylinder 4 and revolving stage 5, reduce the space that the assembly took.

Referring to fig. 2, a plurality of fixing blocks 10 are uniformly and fixedly connected to the middle position of the base 3, the number of the fixing blocks 10 is the same as that of the connecting lugs 7, springs are fixedly connected to the fixing blocks 10, and the ends of the springs are fixedly connected and extruded to the side walls of the connecting lugs 7; in this embodiment, dead point position also can appear in between arc pole 8 and the cylinder 6, namely, the surface of the straight line perpendicular to cylinder 6 at the both ends place of arc pole 8, when pneumatic cylinder 4 drives, the both ends of arc pole 8 are in by the extruded state, make on the pneumatic cylinder 4 drive power can't transmit cylinder 6, set up the cooperation of fixed block 10 and spring for this reason, when arc pole 8 is pulled back to reset by a pneumatic cylinder 4, 7 lateral walls of engaging lug on the cylinder 6 extrude on the spring, make cylinder 6 have a pivoted trend, when a pneumatic cylinder 4 extrudees arc pole 8, the spring this moment has an eccentric promotion thrust to cylinder 6, make cylinder 6 rotate smoothly, thereby guarantee the smooth rotation of revolving stage 5.

Referring to fig. 1 and 2, the base 3 has a semi-cylindrical shape; a steering unit is arranged between the base 1 and the platform 2; the steering unit comprises a fixed seat 11, the fixed seat 11 is fixedly connected with a base 1, a semi-cylindrical rotating groove 12 is formed in the fixed seat 11, the rotating groove 12 is rotatably connected with a base station 3, rotating shafts are fixedly connected to two sides of the base station 3 and rotatably connected with a supporting plate 13, and the supporting plate 13 is fixed on the base 1; semicircular pie-shaped gear plates 14 are symmetrically arranged on two sides of the base station 3, the gear plates 14 are meshed with racks 15, the racks 15 are connected to the base 1 in a sliding mode, the two ends of each rack 15 are fixedly connected with the output end of a second hydraulic cylinder 16, and the second hydraulic cylinders 16 are fixedly connected to the base 1; the turning unit is arranged, the flexibility of the rotary table 5 is increased on the basis that the rotary table 5 rotates horizontally, and the rotary table is suitable for rotary motion at various angles; the base 1 does opposite telescopic motion with the 16 seats of No. two pneumatic cylinders of one side, no. two pneumatic cylinders 16 broaching rack 15, and No. two pneumatic cylinders 16 push away rack 15, and rack 15 removes, rubs gear disc 14 and rotates to drive platform 2 and rotate, and the angle that revolving stage 5 removed to one side deflection simultaneously for the processing material of assembly on the revolving stage 5 is towards different angles, convenient processing or observation.

Referring to fig. 1, 3 and 4, a fixing mechanism is arranged between the support plate 13 and the gear plate 14; the fixing mechanism comprises a fixing pin 17 and a tension spring 18; a plurality of fixing holes 19 are uniformly formed in the eccentric position of the gear disc 14, the inner end part of each fixing pin 17 penetrates through the support plate 13, is connected in the support plate 13 in a sliding manner through a tension spring 18, and is embedded in the corresponding fixing hole 19; the material of treating processing is placed on revolving stage 5, because of material self has gravity, when revolving stage 5 sets up to 1 lopsidedness of base, the broken platform 2 of gravity of material and revolving stage 5 has a trend of deflecting downwards, this trend is to No. two pneumatic cylinders 16, increase its pressure undoubtedly, if the oil pressure of No. two pneumatic cylinders 16 is when under-pressure, platform 2 deflects by oneself and hangs down, influence the processing of material, set up fixed establishment for this, after the inclination of platform 2 adjusts, lax fixed pin 17, fixed pin 17 is in fixed orifices 19 at its pulling force embedding of connecting extension spring 18, the inclination of platform 2 also is just stabilized this moment.

Referring to fig. 3 and 4, a push plate 20 is arranged on the support plate 13, the push plate 20 is L-shaped, a strip-shaped hole 21 is formed in the middle of the push plate 20, a fixing pin 17 is radially and slidably connected to the strip-shaped hole 21, the outer end of the fixing pin 17 is radially and symmetrically connected with a rotating pin 22 in a rotating manner, and the rotating pin 22 is connected to a wavy surface formed on the surface of the push plate 20 in a rolling manner; the wavy surface comprises a primary concave surface 23 and a secondary concave surface 24, and the thickness of the secondary concave surface from the back surface of the push plate 20 is larger than that of the primary concave surface 23 from the back surface of the push plate 20; according to the fixing mechanism designed by the invention, when the rotation angle of the platform 2 is adjusted, the fixing pin 17 needs to be kept pulled outwards and separated from the fixing hole 19 all the time, so that an operator needs to keep pulling the fixing pin 17 with one hand, at the moment, the body is close to the workbench, the safety risk is increased, a push plate is arranged for the purpose, the push plate moves, the fixing pin 17 is separated from the fixing hole 19, the push plate is pulled, the rotating pin 22 on the fixing pin 17 is rubbed by the wavy surface to rotate, then the rotating pin 22 is placed in the first concave surface, at the moment, the inner end of the fixing pin 17 is embedded into the fixing hole 19, when the push plate is pushed, the rotating pin 22 is rubbed by the wavy surface to rotate, the rotating pin 22 gradually slides into the second concave surface, at the moment, the fixing pin 17 is pulled outwards by the push plate, the fixing pin 17 extrudes the tension spring 18 and is separated from the fixing hole 19, so that when the inclination angle of the platform 2 is adjusted, continuous control of the operator is not needed, and the safety production risk is reduced.

Referring to fig. 2, 5, 6 and 7, a plurality of raised limiting strips 25 are arranged on the surface of the base 3; a plurality of concave limiting grooves 26 are formed in the rotary groove 12, and the limiting strips 25 are connected in the limiting grooves 26 in a sliding manner; because the platform 2 can be obliquely arranged, the platform 2 can be pressed by the gravity of the material, when the base 3 rotates in the rotary groove 12, the axial offset can occur between the base 3 and the rotary groove 12, and therefore, the limit strip 25 is arranged, so that when the base 3 rotates in the rotary groove 12, the rotation of the base 3 is restricted, and the possibility of the axis offset of the base 3 and the fixed seat 11 is reduced.

Referring to fig. 2, 6, 7 and 8, a plurality of oil holes 27 are formed in each limiting groove 26, and the oil holes 27 are communicated with an oil supply pipe on the side wall of the fixed block 10; the surface of the limiting strip 25 is provided with a plurality of oil ducts 28, the oil ducts 28 extend to the central position of the base station 3, the middle position of the upper surface of the base station 3 is provided with a rotary hole, a hollow rotary rod 29 is connected in the rotary hole in a rotating mode, the rotary rod 29 is fixedly connected with the cylinder 6, a gap 30 is formed in the fixedly connected position point of the rotary rod 29 and the cylinder 6, and the gap 30 is communicated with the hollow part of the rotary rod 29; because of material gravity, platform 2 that the cooperation slope set up, the wearing and tearing of base station 3 to rotary groove 12 can aggravate, through setting up oilhole 27 for this reason, lubricate the relative rotation between base station 3 and the rotary groove 12, guarantee the roughness on base station 3 and rotary groove 12 surface, and reduce the wearing and tearing volume, when guaranteeing platform 2 slope, material slope degree of accuracy, lubricating oil flows to changeing downthehole along oil duct 28 simultaneously, lubricating oil flows, and flow to breach 30 positions along bull stick 29, the lubricating oil overflow is at cylinder 6 and base station 3 rotation hookup location, also lubricate the processing to it.

Referring to fig. 1, a concave portion 31 is formed in the middle of the upper surface of the base 3, and the cylinder 6 is rotatably connected in the concave portion 31; the concave part 31 is arranged, so that the lubricating oil flowing out of the notch 30 is stored in the concave part 31 in a concentrated mode, the lubricating oil overflowing on the surface of the platform 2 is reduced, and the platform 2 and materials are polluted.

The second embodiment:

referring to fig. 9 and 10, a first comparative example, as another embodiment of the present invention, wherein a plurality of rows of rectangular holes 32 are formed in the supporting plate 13; the back tip of push pedal 20 is equipped with buckle 33, and buckle 33 imbeds in rectangular hole 32, and through the cooperation that sets up rectangular hole 32 and buckle 33, when needing to press the tip of push pedal to stick up, promptly, buckle 33 breaks away from rectangular hole 32, and the push pedal just can slide for commentaries on classics round pin 22 rolls at the wave face, prevents that the push pedal from removing by oneself, and fixed pin 17 is gone to imbed in fixed orifices 19 by oneself.

A groove is formed in the corner position of the back face of the push plate 20, a roller body 34 is rotationally connected in the groove, and the roller body 34 is connected to the surface of the support plate 13 in a rolling mode; through setting up roll body 34, when the one end perk of push pedal, the outer corner position of push pedal pushes up the surface in backup pad 13 this moment, and the corner needs to slide along backup pad 13 this moment, and the roll body 34 that sets up, then makes things convenient for the push pedal to slide on backup pad 13, and the machine converts the sliding friction between outer corner position of push pedal and backup pad 13 into rolling friction.

The working principle is as follows: the first hydraulic cylinder 4 is controlled to perform reciprocating telescopic motion, so that the arc-shaped rod 8 pushes and pulls the cylinder 6, the cylinder 6 is rotated, and the rotary motion of the rotary table 5 is realized; the hydraulic driving rotary worktable takes the first hydraulic cylinder 4 as driving power, in the embodiment, the sliding block 9 is a component which is worn seriously, the structure of the sliding block 9 is simple, the manufacturing cost is low, even if the sliding block is replaced, the expenditure can be reduced compared with the replacement of worm and gear, moreover, the telescopic moving stroke amount of the first hydraulic cylinder 4 is converted into the rotating angle of the cylinder 6 with high efficiency, and the transmission efficiency of the worm and gear is high, meanwhile, when the hydraulic driving rotary worktable is installed, the first hydraulic cylinder 4 and the rotary table 5 can be distributed up and down, namely, the first hydraulic cylinder 4 is installed below the rotary table 5, the rotating connection points between the arc-shaped rods 8 and the sliding block 9 are staggered up and down, and the rotating connection points between the arc-shaped rods 8 and the connecting lugs 7 are staggered up and down, the up and down distribution of the first hydraulic cylinder 4 and the rotary table 5 is realized, and the space occupied by assembly is reduced;

in this embodiment, dead point positions also occur between the arc-shaped rod 8 and the cylinder 6, that is, straight lines at two ends of the arc-shaped rod 8 are perpendicular to the surface of the cylinder 6, when the first hydraulic cylinder 4 is driven, two ends of the arc-shaped rod 8 are in an extruded state, so that the driving force on the first hydraulic cylinder 4 cannot be transmitted to the cylinder 6, for this reason, a fixing block 10 is arranged to be matched with a spring, when the arc-shaped rod 8 is pulled back and reset by the first hydraulic cylinder 4, the side wall of a connecting lug 7 on the cylinder 6 is extruded on the spring, so that the cylinder 6 has a tendency of rotation, when the first hydraulic cylinder 4 extrudes the arc-shaped rod 8, the spring at this time has an eccentric pushing force on the cylinder 6, so that the cylinder 6 rotates smoothly, and the smooth rotation of the turntable 5 is ensured;

the turning unit is arranged, the flexibility of the rotary table 5 is increased on the basis that the rotary table 5 rotates horizontally, and the rotary table is suitable for rotary motion at various angles; two second hydraulic cylinders 16 on the same side of the base 1 do opposite telescopic motion, one second hydraulic cylinder 16 pulls a rack 15, the other second hydraulic cylinder 16 pushes the rack 15, the rack 15 moves, a twisting gear disc 14 rotates and drives the platform 2 to rotate, and meanwhile, the rotary table 5 deflects to one side by a moving angle, so that the processed materials assembled on the rotary table 5 face different angles, and the processing or observation is facilitated;

the material to be processed is placed on the rotary table 5, because the material has gravity, when the rotary table 5 is obliquely arranged towards one side of the base 1, the material and the gravity crushing platform 2 of the rotary table 5 have a downward deflection trend, the trend is undoubtedly to increase the pressure of the second hydraulic cylinder 16, if the oil pressure of the second hydraulic cylinder 16 is under-pressure, the platform 2 automatically deflects and droops to influence the processing of the material, a fixing mechanism is arranged for the purpose, after the inclination angle of the platform 2 is adjusted, the fixing pin 17 is loosened, the fixing pin 17 is embedded into the fixing hole 19 under the tension of the tension spring 18 connected with the fixing pin, and the inclination angle of the platform 2 is stabilized;

according to the fixing mechanism designed by the invention, when the rotation angle of the platform 2 is adjusted, the fixing pin 17 is required to be kept pulled outwards and separated from the fixing hole 19, so that an operator needs to keep pulling the fixing pin 17 with one hand, at the moment, the body is close to the workbench, the safety risk is increased, a push plate is arranged for the purpose, the push plate moves to realize that the fixing pin 17 is separated from the fixing hole 19, the push plate is pulled, the rotating pin 22 on the fixing pin 17 is rubbed by the wavy surface to rotate, then the rotating pin 22 is placed in the first concave surface, at the moment, the inner end of the fixing pin 17 is embedded into the fixing hole 19, when the push plate is pushed, the rotating pin 22 is rubbed by the wavy surface to rotate, the rotating pin 22 gradually slides into the second concave surface, at the moment, the fixing pin 17 is pulled outwards by the push plate, the fixing pin 17 extrudes the tension spring 18 and is separated from the fixing hole 19, so that when the inclination angle of the platform 2 is adjusted, continuous control of the operator is not required, and the safety production risk is reduced;

because the platform 2 can be obliquely arranged, the platform 2 can be laterally pressed by the gravity of materials, when the base 3 rotates in the rotary groove 12, the base 3 can axially deviate from the rotary groove 12, and therefore, the limit strip 25 is arranged, so that when the base 3 rotates in the rotary groove 12, the rotation of the base 3 is restricted, and the possibility of axial deviation of the base 3 and the fixed seat 11 is reduced;

because of the gravity of the material, the platform 2 which is obliquely arranged is matched, the abrasion of the base station 3 to the rotary groove 12 is aggravated, and therefore, the oil hole 27 is arranged to lubricate the relative rotation between the base station 3 and the rotary groove 12, so that the flatness of the surfaces of the base station 3 and the rotary groove 12 is ensured, the abrasion loss is reduced, and when the platform 2 is inclined, the material inclination accuracy is ensured, meanwhile, the lubricating oil flows into the rotary hole along the oil duct 28, flows to the position of the notch 30 along the rotary rod 29, overflows at the rotary connection position of the cylinder 6 and the base station 3, and is lubricated; the concave part 31 is arranged, so that the lubricating oil flowing out of the notch 30 is stored in the concave part 31 in a concentrated mode, the lubricating oil overflowing on the surface of the platform 2 is reduced, and the platform 2 and materials are polluted.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, principal features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims (10)

1. The utility model provides a hydraulic drive swivel work head, includes base (1), is equipped with platform (2) on base (1), its characterized in that: the platform (2) comprises a base platform (3), a first hydraulic cylinder (4) and a rotary table (5); the lower surface rigid coupling of base station (3) is on base (1), the upper surface intermediate position of base station (3) rotates and connects cylinder (6), the up end rigid coupling of cylinder (6) has revolving stage (5), even rigid coupling has a plurality of engaging lug (7) on the outer lane of cylinder (6), it is connected with arc pole (8) to rotate on engaging lug (7), the tip rigid coupling of arc pole (8) has slider (9), slider (9) sliding connection is equipped with in the guide way on base station (3), the rigid coupling has pneumatic cylinder (4) in the guide way, output rigid coupling slider (9) of pneumatic cylinder (4).

2. A hydraulically driven rotary table as claimed in claim 1, wherein: the uniform rigid coupling of base station (3) intermediate position has a plurality of fixed blocks (10), and fixed block (10) quantity is unanimous with engaging lug (7) quantity, and the rigid coupling has the spring on fixed block (10), and the end rigid coupling extrusion of spring is on the lateral wall of engaging lug (7).

3. A hydraulically driven rotary table as claimed in claim 2, wherein: the base station (3) is in a semi-cylindrical shape; a steering unit is arranged between the base (1) and the platform (2); the steering unit comprises a fixed seat (11), the fixed seat (11) is fixedly connected with a base (1), a semi-cylindrical rotating groove (12) is formed in the fixed seat (11), the rotating groove (12) is rotatably connected with a base station (3), rotating shafts are fixedly connected to two sides of the base station (3), the rotating shafts are rotatably connected with a supporting plate (13), and the supporting plate (13) is fixed on the base (1); the bilateral symmetry of base station (3) is equipped with gear plate (14) of semicircle pie, and gear plate (14) meshing has rack (15), and rack (15) sliding connection is on base (1), and each rigid coupling in both ends of rack (15) has the output of No. two pneumatic cylinders (16), and No. two pneumatic cylinder (16) rigid couplings are on base (1).

4. A hydraulically driven rotary table as claimed in claim 3, wherein: a fixing mechanism is arranged between the supporting plate (13) and the gear disc (14); the fixing mechanism comprises a fixing pin (17) and a tension spring (18); a plurality of fixing holes (19) are uniformly formed in the eccentric position of the gear disc (14), the inner end portion of each fixing pin (17) penetrates through the corresponding support plate (13), and is connected into the corresponding support plate (13) in a sliding mode through a tension spring (18) and embedded into the corresponding fixing hole (19).

5. A hydraulically driven rotary table as set forth in claim 4, wherein: a push plate (20) is arranged on the supporting plate (13), the push plate (20) is L-shaped, a strip-shaped hole (21) is formed in the middle of the push plate (20), the fixing pin (17) is radially and slidably connected to the strip-shaped hole (21), the outer end of the fixing pin (17) is radially and symmetrically connected with a rotating pin (22) in a rotating mode, and the rotating pin (22) is connected to a wavy surface formed in the surface of the push plate (20) in a rolling mode; the wavy surface comprises a first-stage concave surface (23) and a second-stage concave surface (24), and the thickness of the second-stage concave surface from the back surface of the push plate (20) is larger than the thickness of the first-stage concave surface (23) from the back surface of the push plate (20).

6. A hydraulically driven rotary table as claimed in claim 3, wherein: a plurality of raised limiting strips (25) are arranged on the surface of the base station (3); a plurality of concave limiting grooves (26) are formed in the rotary groove (12), and the limiting strips (25) are connected in the limiting grooves (26) in a sliding mode.

7. A hydraulically driven rotary table as set forth in claim 6, wherein: a plurality of oil holes (27) are formed in each limiting groove (26), and the oil holes (27) are communicated with an oil feeding pipe on the side wall of the fixing block (10); a plurality of oil ducts (28) are seted up on the surface of spacing (25), and oil duct (28) extend to base station (3) central point and put, and the upper surface intermediate position of base station (3) is seted up and is changeed the hole, changes downthehole internal rotation and is connected with hollow bull stick (29), bull stick (29) rigid coupling cylinder (6), and bull stick (29) and cylinder (6) rigid coupling position point set up breach (30), and breach (30) communicate the hollow portion of bull stick (29).

8. A hydraulically driven rotary table as set forth in claim 7, wherein: a concave part (31) is formed in the middle of the upper surface of the base platform (3), and the cylinder (6) is rotatably connected into the concave part (31).

9. A hydraulically driven rotary table as claimed in claim 5, wherein: a plurality of rows of rectangular holes (32) are formed in the supporting plate (13); the back end of the push plate (20) is provided with a buckle (33), and the buckle (33) is embedded in the rectangular hole (32).

10. A hydraulically driven rotary table as set forth in claim 9, wherein: the back corner position of the push plate (20) is provided with a groove, a roller body (34) is rotationally connected in the groove, and the roller body (34) is connected to the surface of the support plate (13) in a rolling mode.

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