CN111451813B

CN111451813B - Hydraulic clamp for machining automobile hub bracket

Info

Publication number: CN111451813B
Application number: CN201910054198.4A
Authority: CN
Inventors: 杨慧
Original assignee: Danyang Lansi Information Technology Co ltd
Current assignee: Danyang Lansi Information Technology Co ltd
Priority date: 2019-01-21
Filing date: 2019-01-21
Publication date: 2022-06-14
Anticipated expiration: 2039-01-21
Also published as: CN111451813A

Abstract

The invention discloses a hydraulic clamp for machining an automobile hub bracket machine tool, and particularly relates to the technical field of automobile part machining. According to the invention, the adjustable pressing mechanism is driven by the plurality of hydraulic rotary oil cylinders arranged in a triangular shape to fix the end face of the hub bracket, the plurality of retractable clamping plates arranged in a triangular shape are used to fix the circumferential side wall of the hub bracket, and the adjustable positioning pins are matched, so that the stability of workpiece clamping can be greatly improved, and the applicability of a clamping tool can be improved.

Description

Hydraulic clamp for machining automobile hub bracket

Technical Field

The invention relates to the technical field of automobile part machining, in particular to a hydraulic clamp for machining an automobile hub bracket by a machine tool.

Background

The automobile is used as a complex mechanical device and is formed by closely matching thousands of parts, and a part of the parts are combined for transmission so that the automobile can smoothly and stably run, and the parts are collectively called as transmission parts; some parts and components play a role of supporting or strengthening, and such parts and components are collectively called as structural members. The automobile can stably and safely move for a long time, the transmission part and the structural part play a vital role, the hub bracket is one of many parts of the automobile and is used for mounting the hub of the automobile, and the mounting stability and reliability of the automobile tire are further ensured.

The utility model discloses a patent application publication No. CN 208067838U's utility model discloses a wheel hub support processing clamping frock, through be provided with reference column and locating pin on the base of wheel hub support processing frock, confirm the accurate position of waiting to process the wheel hub support through two point location, after the location, with the three point fixation of first fixed subassembly, second fixed subassembly and third fixed subassembly with waiting to process the wheel hub support firmly fixed in the base to accomplish the clamping of waiting to process the wheel hub support and fix, the utility model is simple in structure, the clamping is convenient, reliable, one-time clamping just can accomplish drilling processing, can improve machining efficiency greatly.

However, in actual use, the hub bracket clamping device still has more defects, such as the hub bracket can only be clamped in a specific size, and the clamping station cannot be turned over, so that the processing efficiency of the hub bracket is greatly reduced.

Disclosure of Invention

In order to overcome the defects in the prior art, the embodiment of the invention provides a hydraulic clamp for machining an automobile hub bracket, the adjustable pressing mechanism is driven by a plurality of hydraulic rotary oil cylinders which are arranged in a triangular shape to fix the end face of the hub bracket, the circumferential side wall of the hub bracket is fixed by a plurality of retractable clamping plates which are arranged in a triangular shape, and meanwhile, the adjustable positioning pins are matched, so that the stability of clamping a workpiece can be greatly improved, the applicability of a clamping tool can be improved, the turnover plate can be driven by a servo motor to turn over, the two processes of clamping and drilling can be synchronously carried out, the machining efficiency of the hub bracket is greatly improved, and the problems in the background technology are solved.

In order to achieve the purpose, the invention provides the following technical scheme: a hydraulic clamp for machining an automobile hub bracket comprises a rack, wherein a shell is fixedly arranged at the top of the rack, a through groove is formed in the top of the shell in a penetrating manner, a turnover plate is arranged in the through groove in a matching manner, a servo motor is arranged at the top of one side of the shell, an output shaft of the servo motor horizontally penetrates through the through groove and the turnover plate in the through groove, the end part of an output shaft of the servo motor is movably connected with the inner side wall of the through groove far away from the servo motor through a ball bearing, the turnover plate is fixedly sleeved on the output shaft of the servo motor, cavities are respectively arranged at the top and the bottom central positions of the turnover plate, pin holes are formed in the end surfaces of the two cavities, positioning pins are arranged in the pin holes in a matching manner, a supporting plate is fixedly sleeved outside the positioning pins, and the bottom end surface of the supporting plate is coplanar with the end surface of the turnover plate at the corresponding position, a hydraulic rotating oil cylinder is arranged outside the cavity, one end of a piston rod at the end part of the hydraulic rotating oil cylinder is fixedly connected with a pressing mechanism, one side of the hydraulic rotating oil cylinder is provided with a guide groove, one end of the guide groove far away from the cavity is fixedly connected with a guide rod, one end of the guide rod is provided with a sleeve, one end face of the sleeve far away from the guide rod is movably jointed with the end face in the guide groove close to the cavity, one end of the guide rod is movably sleeved inside the sleeve, a spring is sleeved outside the guide rod, two ends of the spring are respectively and fixedly connected with the end face far away from the cavity inside the guide groove and the end face of the sleeve, the top of one end of the sleeve is fixedly provided with a clamping plate, one side of the clamping plate is obliquely provided with a reinforcing rod, two ends of the reinforcing rod are respectively and fixedly connected with the sleeve and the clamping plate, the bottom end face of the clamping plate is movably jointed with the end face of the turnover plate, and two sides of the shell are both provided with a plurality of air inlets, the hydraulic rotary oil cylinder is characterized in that a PLC (programmable logic controller) is arranged on one side of the rack, a fixed sleeve is fixedly arranged at the central position of the top end face of the rack, a hydraulic oil cylinder is arranged at the central position of the bottom of an inner cavity of the fixed sleeve, a movable sleeve is movably sleeved outside the fixed sleeve, a base plate is arranged inside the movable sleeve, a driving motor is arranged at the top of the base plate, the end part of an output shaft of the driving motor penetrates through the top end of the movable sleeve and is fixedly connected with a drill bit, guide cylinders are arranged at two ends of the bottom of the shell, one side of each guide cylinder is movably attached to the outer side wall of the corresponding movable sleeve, an exhaust fan is arranged at the bottom end of each guide cylinder, and the PLC is electrically connected with the hydraulic rotary oil cylinder and the hydraulic oil cylinder; the pressing mechanism comprises a fixed plate, one end of the fixed plate is fixedly connected with a piston rod at the end part of the hydraulic rotary oil cylinder, one end of the fixed plate is provided with a groove, a movable plate is movably inserted in the groove, one end of the movable plate is equidistantly provided with a first locking hole in a penetrating mode, one end of the fixed plate with the groove is provided with a second locking hole in a penetrating mode, the first locking hole is matched with the second locking hole, a blind nut is correspondingly arranged at the position of the second locking hole in the bottom surface of the fixed plate, the fixed plate is fixedly connected with the movable plate through a locking screw, a pressing plate is fixedly connected to the bottom of one end of the fixed plate, and a rubber cushion is arranged at the bottom of the pressing plate in a matching mode.

In a preferred embodiment, pin hole circumference side inner wall is equipped with the internal thread, locating pin bottom circumference side outer wall correspondence is equipped with the external screw thread, threaded connection between locating pin and the pin hole, pin hole quantity is provided with four groups, and every group is equipped with a plurality ofly, and a plurality of pin hole collineation of every group sets up, four groups the pin hole uses the central point of cavity to be annular evenly distributed on the terminal surface of cavity as the centre of a circle.

In a preferred embodiment, the number of the hydraulic rotary cylinders and the number of the guide grooves are three, the three hydraulic rotary cylinders and the three guide grooves are uniformly distributed on the outer side of the cavity in an annular shape by taking a central point of the cavity as a circle center, and the hydraulic rotary cylinders and the three guide grooves are alternately arranged.

In a preferred embodiment, the clamping plate comprises a vertical section and a circular arc section, and the top end of the circular arc section of the clamping plate is arranged in a flaring structure outwards.

In a preferred embodiment, the top end surface of the movable sleeve is provided as a spherical surface, and the circumferential side surfaces of the base plate and the fixed sleeve are provided as a mesh structure.

In a preferred embodiment, the bottom of the draft tube is provided with a collecting mechanism, the collecting mechanism comprises a collecting box, the top of the collecting box is provided with a cover plate in a matching manner, a communication port penetrates through the center of the top of the cover plate, the draft tube is communicated with the collecting box through the communication port in the center of the cover plate, and a plurality of air exhaust holes are uniformly distributed in the cover plate on two sides of the communication port.

In a preferred embodiment, the two sides of the top of the collecting box are both fixedly provided with an inserting rod, the two sides of the bottom of the cover plate are correspondingly provided with inserting grooves, the inserting rods are matched with the inserting grooves, and one ends of the inserting grooves are provided with flaring grooves.

In a preferred embodiment, the air inlet and the air outlet are both provided with a filter screen in a matching way.

The invention has the technical effects and advantages that:

the invention places a hub bracket to be drilled into a containing cavity formed between three clamping plates, carries out pre-positioning through a positioning pin, then controls a hydraulic telescopic oil cylinder on one side of the hub bracket to work through a PLC (programmable logic controller), so that the hydraulic telescopic oil cylinder drives a pressing mechanism connected with the end part of a piston rod to rotate for a certain angle and press downwards, the hub bracket moves downwards along the positioning pin and presses the clamping plates on the circumferential side outwards, in the process, a sleeve pipe can extrude a spring along the direction of a guide rod, when the bottom end surface of the hub bracket is attached to the top surface of the turnover plate on the side, the clamping plates can clamp the outer wall of the circumferential side of the hub bracket under the restoring force of the spring, after the hub bracket is clamped, the PLC controls a servo motor to turn over the turnover plate for 180 degrees, so that one side of the turnover plate provided with a hub to be machined is turned over into a shell, then, the hydraulic oil cylinder controls a base plate to push upwards through the PLC, because the fixed sleeve and the movable sleeve are movably sleeved, and the base plate is fixedly arranged in the movable sleeve, the movable sleeve is pushed to move upwards along the outer side wall of the fixed sleeve, and the driving motor at the top of the base plate drives the drill bit to rotate so as to complete the drilling of the hub bracket, meanwhile, when one side of the turnover plate provided with the hub bracket is turned into the shell, one side of the turnover plate which is not provided with the hub bracket at the other side is turned to the top of the shell, the hub bracket to be processed can be continuously clamped, so that the two processes of clamping and drilling are synchronously carried out, the processing efficiency of the hub bracket is greatly improved, a large amount of heat can be generated when the driving motor continuously works in the drilling process, as the circumferential side surfaces of the base plate and the fixed sleeve are both arranged into a net structure, the heat dissipation effect of the driving motor in the working process is favorably improved, so as to ensure the stable work of equipment, debris generated in the drilling process is sucked into the collecting mechanism under the action of the exhaust fan, so that the debris is prevented from escaping into the external environment, and when the hydraulic rotary oil cylinder is used for driving the pressing mechanism to press the hub bracket to be processed, because one end of the movable plate is provided with a first locking hole in an equidistant penetrating manner, one end of the fixed plate with the groove is provided with a second locking hole in a penetrating manner, the first locking hole is matched with the second locking hole, the second locking hole on the bottom surface of the fixed plate is correspondingly provided with a blind nut, and the fixed plate is fixedly connected with the movable plate through a locking screw, the relative length between the fixed plate and the movable plate can be adjusted according to the size of the hub bracket to be processed, so that the applicability of the pressing mechanism is greatly improved; the invention collects the debris generated in the drilling process by utilizing the collecting mechanism, the top of the collecting box is provided with the cover plate in a matching way, the central position of the top of the cover plate is provided with the communicating port in a penetrating way, the guide cylinder is communicated with the collecting box through the communicating port at the central position of the cover plate, the cover plates at the two sides of the communicating port are uniformly distributed with the plurality of exhaust holes, the debris dust generated in the drilling process and dissipated in the shell is favorably absorbed into the collecting box by the exhaust fan, the debris dust can be prevented from dissipating into the external working environment, the debris dust can be recycled, the two sides of the top of the collecting box are both fixedly provided with the inserting rods, the two sides of the bottom of the cover plate are correspondingly provided with the inserting grooves, the inserting rods are matched with the inserting grooves, one end of the inserting grooves is provided with the flaring grooves, the quick positioning of the station of the collecting box can be favorably realized by the inserting rods and the inserting grooves in a matching way, and the stability of the collecting box in the placing process is improved, and the setting in flaring groove then is favorable to inserting the inserted bar fast in the slot, improves counterpoint efficiency, simultaneously, because the setting in air intake and the hole of airing exhaust, and the air intake all cooperates with the downthehole portion of airing exhaust and is equipped with the filter screen, both can keep the stability of the inside atmospheric pressure of casing, can prevent again that the piece loss that the drilling in-process produced from the external environment, and then influence operation personnel's operational environment, the practicality is strong.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a top view of the roll-over panel of the present invention;

FIG. 3 is a schematic view of the pressing mechanism of the present invention;

FIG. 4 is a schematic view of the collection mechanism of the present invention;

FIG. 5 is a schematic view of the cover plate structure of the present invention;

FIG. 6 is a circuit diagram of the control of the hydraulic rotary cylinder and the hydraulic cylinder of the present invention;

the reference signs are: the device comprises a machine frame 1, a shell 2, a through groove 3, a turnover plate 4, a cavity 5, a positioning pin 6, a supporting plate 7, a hydraulic rotary oil cylinder 8, a pressing mechanism 9, a fixing plate 10, a movable plate 11, a pressing plate 12, a rubber cushion 13, a guide groove 14, a guide rod 15, a sleeve 16, a clamp plate 17, a reinforcing rod 18, a spring 19, a servo motor 20, an air inlet 21, a PLC (programmable logic controller) 22, a fixed sleeve 23, a hydraulic oil cylinder 24, a movable sleeve 25, a base plate 26, a driving motor 27, a drill bit 28, a guide cylinder 29, an exhaust fan 30, a collection mechanism 31, a collection box 32, a cover plate 33, a communication port 34, an exhaust hole 35, an insertion rod 36, an insertion slot 37 and an expansion groove 38.

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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Example 1

The invention provides a hydraulic clamp for machining an automobile hub bracket machine tool as shown in figures 1-6, which comprises a frame 1, wherein the top of the frame 1 is fixedly provided with a shell 2, the top of the shell 2 is provided with a through groove 3 in a penetrating way, a turnover plate 4 is arranged in the through groove 3 in a matching way, the top of one side of the shell 2 is provided with a servo motor 20, an output shaft of the servo motor 20 horizontally penetrates through the through groove 3 and the turnover plate 4 in the through groove, the end part of the output shaft of the servo motor 20 is movably connected with the inner side wall of the through groove 3 far away from the servo motor 20 through a ball bearing, the turnover plate 4 is fixedly sleeved on the output shaft of the servo motor 20, the top and the bottom center positions of the turnover plate 4 are provided with cavities 5, the end surfaces of the two cavities 5 are provided with pin holes, and positioning pins 6 are arranged in the pin holes in a matching way, the outside fixed cover of locating pin 6 is equipped with layer board 7, the bottom end face of layer board 7 and the place side end face coplane setting of corresponding department returning face plate 4 are favorable to in-process of carrying out drilling to the wheel hub support, and high-speed pivoted drill bit 28 causes the damage to returning face plate 4's surface, the cavity 5 outside is provided with hydraulic rotary cylinder 8, the piston rod one end fixedly connected with hold-down mechanism 9 of hydraulic rotary cylinder 8 tip, hydraulic rotary cylinder 8 one side is provided with guide way 14, the inside one end fixedly connected with guide arm 15 of keeping away from cavity 5 of guide way 14, guide arm 15 one end is provided with sleeve pipe 16, the sleeve pipe 16 is kept away from the one end terminal surface of guide arm 15 and is laminated with the interior terminal surface activity of guide way 14 that is close to cavity 5, inside sleeve pipe 16 is located to guide arm 15 one end activity cover, the outside cover of guide arm 15 is equipped with spring 19, spring 19 both ends are respectively with the inside terminal surface of keeping away from cavity 5 and the terminal surface of sleeve pipe 16 of guide way 14 firmly laminating firmly Fixedly connected, a clamping plate 17 is fixedly arranged at the top of one end of the sleeve 16, a reinforcing rod 18 is obliquely arranged on one side of the clamping plate 17, two ends of the reinforcing rod 18 are respectively fixedly connected with the sleeve 16 and the clamping plate 17, the bottom end face of the clamping plate 17 is movably attached to the end face of the turnover plate 4, a plurality of air inlets 21 are arranged on two sides of the shell 2, a PLC (programmable logic controller) 22 is arranged on one side of the rack 1, a fixed sleeve 23 is fixedly arranged at the central position of the top end face of the rack 1, a hydraulic oil cylinder 24 is arranged at the central position of the bottom of an inner cavity of the fixed sleeve 23, a movable sleeve 25 is movably sleeved outside the fixed sleeve 23, a base plate 26 is arranged inside the movable sleeve 25, a driving motor 27 is arranged at the top of the base plate 26, the end part of an output shaft of the driving motor 27 penetrates through the top end of the movable sleeve 25 and is fixedly connected with a drill bit 28, and guide cylinders 29 are arranged at two ends of the bottom of the shell 2, one side of the guide cylinder 29 is movably attached to the outer side wall of the movable sleeve 25, an exhaust fan 30 is arranged at the bottom end of the guide cylinder 29, and the PLC 22 is electrically connected with the hydraulic rotary oil cylinder 8 and the hydraulic oil cylinder 24;

The pressing mechanism 9 comprises a fixing plate 10, one end of the fixing plate 10 is fixedly connected with a piston rod at the end of the hydraulic rotary oil cylinder 8, a groove is formed in one end of the fixing plate 10, a movable plate 11 is movably inserted into the groove, a first locking hole is formed in one end of the movable plate 11 in an equidistant mode, a second locking hole is formed in one end, provided with a groove, of the fixing plate 10 in a penetrating mode, the first locking hole is matched with the second locking hole, a blind nut is correspondingly arranged at the position of the second locking hole in the bottom face of the fixing plate 10, the fixing plate 10 is fixedly connected with the movable plate 11 through a locking screw, a pressing plate 12 is fixedly connected to the bottom of one end of the fixing plate 10, and a rubber pad 13 is arranged at the bottom of the pressing plate 12 in a matching mode.

From the above embodiment, it can be seen that: the invention places a hub bracket to be drilled into a containing cavity formed between three clamping plates 17, carries out pre-positioning through a positioning pin 6, controls a hydraulic telescopic oil cylinder 8 at one side of the hub bracket to work through a PLC (programmable logic controller) 22, drives a pressing mechanism 9 connected with the end part of a piston rod to rotate for a certain angle and press downwards, so that the hub bracket moves downwards along the positioning pin 6 and presses the clamping plates 17 at the circumferential side outwards, in the process, a sleeve 16 can extrude a spring 19 along the direction of a guide rod 15, when the bottom end surface of the hub bracket is attached to the top surface of a turnover plate 4 at the side, the clamping plates 17 can clamp the outer wall at the circumferential side of the hub bracket under the restoring force of the spring 19, after the hub bracket is clamped tightly, the PLC 22 controls a servo motor 20 to turn over the turnover plate 4 for 180 degrees, so that one side of the turnover plate 4 provided with a hub to be machined is turned over into a shell 2, then, the hydraulic oil cylinder 24 is controlled by the PLC 22 to push the base plate 26 to move upwards, because the fixed sleeve 23 and the movable sleeve 25 are movably sleeved, the base plate 26 is fixedly arranged in the movable sleeve 25, the movable sleeve 25 is pushed to move upwards along the outer side wall of the fixed sleeve 23, and the driving motor 27 at the top of the base plate 26 drives the drill bit 28 to rotate so as to complete the drilling of the hub bracket, meanwhile, when one side of the turnover plate 4 provided with the hub bracket is turned into the shell 2, one side of the turnover plate 4 which is not provided with the hub bracket at the other side is turned into the top of the shell 2, the hub bracket to be machined can be continuously clamped, so that the two processes of clamping and drilling can be synchronously carried out, the machining efficiency of the hub bracket is greatly improved, in the drilling process, a large amount of heat can be generated by the continuous work of the driving motor 27, because the circumferential side surfaces of the base plate 26 and the fixed sleeve 23 are both of a net-shaped structure, is beneficial to improving the heat dissipation effect of the driving motor 27 in the working process so as to ensure the stable working of the equipment, the debris generated during drilling is sucked into the collection means 31 by the fan 30, avoiding its escape into the external environment, and, when the hydraulic rotary oil cylinder 8 is used for driving the pressing mechanism 9 to press the hub bracket to be processed, as one end of the movable plate 11 is provided with a first locking hole in a penetrating way at equal intervals, one end of the fixed plate 10 with the groove is provided with a second locking hole in a penetrating way, the first locking hole is matched with the second locking hole, and the second locking hole on the bottom surface of the fixed plate 10 is correspondingly provided with a blind nut, the fixed plate 10 and the movable plate 11 are fixedly connected through the locking screw, so that the relative length between the fixed plate 10 and the movable plate 11 can be adjusted according to the size of the hub bracket to be processed, and the applicability of the pressing mechanism 9 is greatly improved.

Example 2

Further, cotter hole circumference side inner wall is equipped with the internal thread, 6 bottom circumference outside wall correspondences of locating pin are equipped with the external screw thread, threaded connection between locating pin 6 and the cotter hole is favorable to carrying out fast assembly and dismantlement to locating pin 6, and the change of being convenient for, maintenance cost is the second, cotter hole quantity is provided with four groups, and every group is equipped with a plurality ofly, and a plurality of cotter hole collineation settings of every group, four groups the cotter hole uses the central point of cavity 5 to be the centre of a circle and is annular evenly distributed on the terminal surface of cavity 5, is favorable to adjusting the position of locating pin 6 in cavity 5 according to the wheel hub support of actually treating processing, has improved the suitability of equipment greatly.

Further, the quantity of hydraulic pressure rotary cylinder 8 and guide way 14 all is provided with threely, and is three hydraulic pressure rotary cylinder 8 and guide way 14 all use the central point of cavity 5 to be the outside that annular evenly distributed was at cavity 5 as the centre of a circle, set up in turn between hydraulic pressure rotary cylinder 8 and the guide way 14, be favorable to improving the stability of wheel hub support when fixed greatly through triangular stability principle.

Further, splint 17 is including vertical section and circular arc section, splint 17's circular arc section top is outwards to be flaring structure setting, is convenient for block the appearance intracavity that forms between three splint 17 with the wheel hub support.

Further, the top end face of the movable sleeve 25 is a spherical surface, and the circumferential side faces of the base plate 26 and the fixed sleeve 23 are both mesh structures, so that the heat dissipation effect of the driving motor 27 in the working process is improved, and the stable working of the equipment is ensured.

Further, draft tube 29 bottom is provided with collection mechanism 31, collection mechanism 31 is including collecting box 32, the cooperation of collecting box 32 top is equipped with apron 33, apron 33 top central point puts and runs through and is equipped with intercommunication mouth 34, be linked together through the intercommunication mouth 34 that apron 33 central point put between draft tube 29 and the collecting box 32, evenly distributed has a plurality of exhaust holes 35 on the apron 33 of intercommunication mouth 34 both sides, is favorable to inhaling the piece dust of the dissipation that produces in the drilling process in casing 2 inside to the collecting box 32 through exhaust fan 30, both can prevent during the piece dust loss from to external work environment, can realize the recovery of piece dust again and recycle.

Furthermore, the two sides of the top of the collection box 32 are both fixedly provided with the insertion rods 36, the two sides of the bottom of the cover plate 33 are correspondingly provided with the insertion slots 37, the insertion rods 36 are matched with the insertion slots 37, one end of each insertion slot 37 is provided with the flaring slots 38, so that the rapid positioning of the stations of the collection box 32 through the insertion rods 36 and the insertion slots 37 in a matching mode is facilitated, the stability of the collection box 32 in the placement process is improved, and the arrangement of the flaring slots 38 is favorable for the rapid insertion of the insertion rods 36 into the insertion slots 37, so that the alignment efficiency is improved.

Furthermore, the air inlet 21 and the air exhaust hole 35 are both provided with filter screens in a matched manner, so that chips generated in the drilling process can be prevented from dissipating to the external environment, and the working environment of operators is further influenced.

The working principle of the invention is as follows:

referring to the attached drawings 1-2 and fig. 6 of the specification, in the using process, firstly, the equipment is communicated with an external power supply, then a worker places a hub bracket to be drilled into a containing cavity formed among three clamping plates 17, the hub bracket is pre-positioned through a positioning pin 6, then a PLC (programmable logic controller) 22 controls a hydraulic telescopic oil cylinder 8 on one side where the hub bracket is placed to work to drive a pressing mechanism 9 connected with the end part of a piston rod to rotate for a certain angle and press downwards, so that the hub bracket moves downwards along the positioning pin 6 and presses the clamping plates 17 on the circumferential side outwards, in the process, a sleeve 16 can press a spring 19 along the direction of a guide rod 15, when the bottom end face of the hub bracket is attached to the top face of an overturning plate 4 on the side, the clamping plates 17 can clamp the outer wall on the circumferential side of the hub bracket under the restoring force of the spring 19, and after the hub bracket is tightly clamped, the PLC controller 22 controls the servo motor 20 to turn the turnover plate 4 for 180 degrees, so that one side of the turnover plate 4 provided with the hub to be processed is turned over into the shell 2, then the PLC controller 22 controls the hydraulic oil cylinder 24 to push the base plate 26 to move upwards, the base plate 26 is fixedly arranged in the movable sleeve 25 due to the movable sleeve joint between the fixed sleeve 23 and the movable sleeve 25, so that the movable sleeve 25 is pushed to move upwards along the outer side wall of the fixed sleeve 23, the driving motor 27 at the top of the base plate 26 drives the drill bit 28 to rotate so as to complete the drilling of the hub bracket, meanwhile, when one side of the turnover plate 4 provided with the hub bracket is turned over into the shell 2, one side of the turnover plate 4 without the hub bracket is turned over to the top of the shell 2, the hub bracket to be processed can be continuously clamped, so that the two processes of clamping and drilling are carried out synchronously, and the processing efficiency of the hub bracket is greatly improved, in the drilling process, the continuous work of the driving motor 27 can generate a large amount of heat, as the circumferential side surfaces of the base plate 26 and the fixed sleeve 23 are both provided with a net structure, the heat dissipation effect of the driving motor 27 in the working process can be improved, so as to ensure the stable work of the equipment, and the debris generated in the drilling process is sucked into the collecting mechanism 31 under the action of the exhaust fan 30, so that the debris is prevented from being dissipated into the external environment;

Referring to the attached drawing 3 of the specification, when the hydraulic rotary cylinder 8 is used for driving the pressing mechanism 9 to press the hub bracket to be processed, because one end of the movable plate 11 is provided with first locking holes in a penetrating manner at equal intervals, one end of the fixed plate 10 with the groove is provided with second locking holes in a penetrating manner, the first locking holes are matched with the second locking holes, blind nuts are correspondingly arranged at the second locking holes on the bottom surface of the fixed plate 10, and the fixed plate 10 is fixedly connected with the movable plate 11 through locking screws, the relative length between the fixed plate 10 and the movable plate 11 can be adjusted according to the size of the hub bracket to be processed, so that the applicability of the pressing mechanism 9 is greatly improved;

referring to the attached drawings 1 and 4-5 of the specification, in the process of collecting the debris generated in the drilling process, because the top of the collection box 32 is provided with the cover plate 33 in a matching manner, the central position of the top of the cover plate 33 is provided with the communication port 34 in a penetrating manner, the guide cylinder 29 is communicated with the collection box 32 through the communication port 34 at the central position of the cover plate 33, the cover plates 33 at the two sides of the communication port 34 are uniformly distributed with a plurality of exhaust holes 35, which is beneficial to sucking the debris dust generated in the drilling process and dissipated in the shell 2 into the collection box 32 through the exhaust fan 30, not only preventing the debris dust from dissipating into the external working environment, but also realizing the recycling of the debris dust, moreover, the two sides of the top of the collection box 32 are both fixedly provided with the inserted rods 36, the two sides of the bottom of the cover plate 33 are correspondingly provided with the slots 37, the inserted rods 36 are matched with the slots 37, one end of the slots 37 are provided with the flared slots 38, be favorable to coming to fix a position the station of collecting box 32 fast through inserted bar 36 and slot 37 of cooperation formula, improve the stability of collecting box 32 at the place in-process, and flaring groove 38's setting, then be favorable to coming into slot 37 with inserted bar 36 fast, improve counterpoint efficiency, simultaneously, because air intake 21 and the setting of hole 35 of airing exhaust, and air intake 21 and the inside all cooperation in hole 35 of airing exhaust are equipped with the filter screen, both can keep the stability of 2 inside atmospheric pressures of casing, can prevent again that the piece that the drilling in-process produced from dissipating to the external environment, and then influence operation personnel's operational environment, therefore, the clothes hanger is strong in practicability.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;

and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims

1. The utility model provides a hydraulically operated fixture for automobile wheel hub support machine tool machining, includes frame (1), its characterized in that: the top of the frame (1) is fixedly provided with a shell (2), the top of the shell (2) is provided with a through groove (3) in a penetrating manner, the through groove (3) is internally provided with a turnover plate (4) in a matching manner, the top of one side of the shell (2) is provided with a servo motor (20), an output shaft of the servo motor (20) horizontally penetrates through the through groove (3) and the turnover plate (4) inside the through groove, the end part of the output shaft of the servo motor (20) is movably connected with the inner side wall of the through groove (3) far away from the side of the servo motor (20) through a ball bearing, the turnover plate (4) is fixedly sleeved on the output shaft of the servo motor (20), the top and the bottom center positions of the turnover plate (4) are both provided with cavities (5), two pin holes are formed in the end faces of the cavities (5), positioning pins (6) are arranged in the pin holes in a matching manner, a supporting sleeve (7) is arranged outside the positioning pins (6), the bottom end face of the supporting plate (7) and the side end face of the corresponding turnover plate (4) are arranged in a coplanar manner, a hydraulic rotary oil cylinder (8) is arranged on the outer side of the cavity (5), a pressing mechanism (9) is fixedly connected to one end of a piston rod at the end of the hydraulic rotary oil cylinder (8), a guide groove (14) is formed in one side of the hydraulic rotary oil cylinder (8), a guide rod (15) is fixedly connected to one end, far away from the cavity (5), in the guide groove (14), one end of the guide rod (15) is provided with a sleeve (16), the end face, far away from the guide rod (15), of the sleeve (16) is movably attached to the inner end face of the guide groove (14) close to the cavity (5), one end of the guide rod (15) is movably sleeved in the sleeve (16), a spring (19) is sleeved outside the guide rod (15), and two ends of the spring (19) are fixedly connected with the end face, far away from the cavity (5) in the guide groove (14) and the end face of the sleeve (16) respectively, the top of one end of the sleeve (16) is fixedly provided with a clamping plate (17), one side of the clamping plate (17) is obliquely provided with a reinforcing rod (18), two ends of the reinforcing rod (18) are fixedly connected with the sleeve (16) and the clamping plate (17) respectively, the bottom end face of the clamping plate (17) is movably attached to the end face of the turnover plate (4), two sides of the shell (2) are provided with a plurality of air inlets (21), one side of the rack (1) is provided with a PLC (programmable logic controller) (22), the center position of the top end face of the rack (1) is fixedly provided with a fixed sleeve (23), the center position of the bottom of the inner cavity of the fixed sleeve (23) is provided with a hydraulic oil cylinder (24), the outer part of the fixed sleeve (23) is movably sleeved with a movable sleeve (25), a base plate (26) is arranged inside the movable sleeve (25), and the top of the base plate (26) is provided with a driving motor (27), the end part of an output shaft of the driving motor (27) penetrates through the top end of the movable sleeve (25) and is fixedly connected with a drill bit (28), guide cylinders (29) are arranged at two ends of the bottom of the shell (2), one side of each guide cylinder (29) is movably attached to the outer side wall of the movable sleeve (25), an exhaust fan (30) is arranged at the bottom end of each guide cylinder (29), and the PLC (22) is electrically connected with the hydraulic rotary oil cylinder (8) and the hydraulic oil cylinder (24);

Hold-down mechanism (9) are including fixed plate (10), fixed plate (10) one end links to each other with the piston rod of hydraulic pressure rotary cylinder (8) tip is fixed, fixed plate (10) one end is provided with the recess, the inside activity of recess is pegged graft and is had fly leaf (11), fly leaf (11) one end is equidistant to run through and is equipped with first locking hole, the one end of fixed plate (10) upper band recess runs through and is equipped with second locking hole, first locking hole and second locking hole phase-match, the bottom surface second locking hole department correspondence of fixed plate (10) is equipped with blind nut, through locking screw fixed connection between fixed plate (10) and fly leaf (11), fixed plate (10) one end bottom fixedly connected with clamp plate (12), clamp plate (12) bottom cooperation is equipped with cushion (13).

2. The hydraulic clamp for machining the automobile hub bracket according to claim 1, characterized in that: the utility model discloses a hollow cavity, including locating pin (6), locating pin hole circumference side inner wall, locating pin (6) bottom circumference side outer wall correspondence is equipped with the internal thread, threaded connection between locating pin (6) and the pin hole, pin hole quantity is provided with four groups, and every group is equipped with a plurality ofly, and a plurality of pin hole collineation setting of every group, four groups the pin hole uses the central point of cavity (5) to be annular evenly distributed on the terminal surface of cavity (5) as the centre of a circle.

3. The hydraulic clamp for machining the automobile hub bracket according to claim 1, characterized in that: the hydraulic rotary oil cylinder (8) and the guide groove (14) are three in number, the hydraulic rotary oil cylinder (8) and the guide groove (14) are uniformly distributed on the outer side of the cavity (5) in an annular mode by taking the central point of the cavity (5) as the circle center, and the hydraulic rotary oil cylinder (8) and the guide groove (14) are alternately arranged.

4. The hydraulic clamp for machining the automobile hub bracket according to claim 1, characterized in that: splint (17) are including vertical section and circular arc section, the circular arc section top of splint (17) outwards is flaring structure setting.

5. The hydraulic clamp for machining the automobile hub bracket according to claim 1, characterized in that: the top end face of the movable sleeve (25) is a spherical surface, and the circumferential side faces of the base plate (26) and the fixed sleeve (23) are both of a net structure.

6. The hydraulic clamp for machining the automobile hub bracket according to claim 1, characterized in that: the air guide cylinder is characterized in that a collecting mechanism (31) is arranged at the bottom of the air guide cylinder (29), the collecting mechanism (31) comprises a collecting box (32), a cover plate (33) is arranged at the top of the collecting box (32) in a matched mode, a communicating port (34) penetrates through the center of the top of the cover plate (33), the air guide cylinder (29) is communicated with the collecting box (32) through the communicating port (34) in the center of the cover plate (33), and a plurality of air exhaust holes (35) are uniformly distributed in the cover plate (33) on the two sides of the communicating port (34).

7. The hydraulic clamp for machining the automobile hub bracket according to claim 6, wherein the hydraulic clamp is characterized in that: the collecting box (32) top both sides all are fixed and are equipped with inserted bar (36), apron (33) bottom both sides correspond and are equipped with slot (37), inserted bar (36) and slot (37) phase-match, slot (37) one end is provided with flaring groove (38).

8. The hydraulic clamp for machining the automobile hub bracket according to claim 6, wherein the hydraulic clamp is characterized in that: the air inlet (21) and the air exhaust hole (35) are internally provided with filter screens in a matching way.