CN113857865A

CN113857865A - Automatic production line for hub turning

Info

Publication number: CN113857865A
Application number: CN202111259469.3A
Authority: CN
Inventors: 冯建平
Original assignee: Taishan Zhongmei Technology Co ltd
Current assignee: Taishan Zhongmei Technology Co ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2021-12-31

Abstract

The invention discloses an automatic production line for turning a hub, which comprises a material storage device, a carrying robot, processing equipment, a first transfer table, a second transfer table and a blanking table, wherein the carrying robot comprises an in-sequence robot, two preface robots and three preface robots, the processing equipment includes first preface lathe, the first preface lathe of second, first preface lathe, second preface lathe and burring processing equipment, store a certain amount of wheel hub on the storage device and fix a position the wheel hub, transfer robot carries out material loading and reloading to a plurality of processing equipment from storage device wheel hub, material transfer between first preface processing and the second preface processing is realized to first transfer station, material transfer between second preface processing and the burring processing equipment is realized to the second transfer station, whole process can realize automaticly, the workman that significantly reduces participates in, be favorable to reducing workman intensity of labour, guarantee workman safety.

Description

Automatic production line for hub turning

Technical Field

The invention relates to the field of hub machining equipment, in particular to an automatic hub turning production line.

Background

At present, with the continuous development of social economy and industrialization, factories face more and more labor difficulties, and more factories suffer from difficulty in attracting technical workers. On the other hand, the hub processing needs to be carried out a plurality of processes, the workers need to carry out frequent feeding and discharging operations in each process, meanwhile, a plurality of workers are needed to participate in the plurality of processes, the manpower requirement is large, the labor intensity of the workers is high, and the frequent operation of the machine easily causes human negligence or even accidents.

Disclosure of Invention

The invention aims to at least solve one of the technical problems in the prior art, and provides an automatic hub turning production line which is beneficial to reducing the labor demand and reducing the labor intensity and safety of workers.

According to a first aspect of the present invention, there is provided an automatic hub turning production line, comprising:

the storage device is provided with a rotary table, storage racks and a positioning detection mechanism, the rotary table is provided with a plurality of storage racks, the storage racks store a plurality of hubs, and the positioning detection mechanism is arranged outside the range covered by the rotary table; the machining equipment is provided with two rows, each row comprises first-order outer edge machining equipment, second-order outer edge machining equipment and deburring machining equipment which are arranged in sequence, intervals are reserved between the two rows of machining equipment, and the first-order outer edge machining equipment comprises a first-order lathe and a second first-order lathe and is used for machining the front outer edge surface and the shaft hole of the hub; the second-sequence outer edge processing equipment comprises a first second-sequence lathe and a second-sequence lathe, and is used for processing the reverse outer edge surface of the hub, the outer end surface of the shaft hole and the shaft hole; the deburring processing equipment comprises a first processing center and a second processing center, wherein the first processing center and the second processing center are used for removing casting burrs on the edge of a spoke on a hub; the carrying robot comprises a first-order robot, a second-order robot and a third-order robot which are arranged in sequence, wherein the first-order robot is positioned at the interval between the first-order lathe and the second first-order lathe, the second-order robot is positioned at the interval between the first second-order lathe and the second-order lathe, and the third-order robot is positioned at the interval between the deburring devices at the two sides; the clamping mechanism is arranged on the transfer robot and comprises a clamping cylinder and a connecting arm, the connecting arm is arranged on the transfer robot, the clamping cylinder is arranged on the connecting arm, and the system clamps a shaft hole boss of the hub when the hub is transferred; the first transfer platform is arranged between the first-order robot and the second-order robot, a first base and a hub support are arranged on the first transfer platform, and the hub support is connected with the base in a sliding mode; the second transfer platform is arranged between the second-order robot and the third-order robot, a second base and a supporting mechanism are arranged on the second transfer platform, and the supporting piece mechanism is connected to the second base; and the automatic control system is connected with and controls the processing equipment, the storage device, the carrying robot, the clamping mechanism, the first transfer table and the second transfer table.

The automatic hub turning production line disclosed by the invention at least has the following beneficial effects: this embodiment is equipped with storage device, the transfer robot, the processing equipment, first transfer platform, second transfer platform and unloading platform, the transfer robot includes an preface robot, two preface robots and three preface robots, the processing equipment includes first preface lathe, the first preface lathe of second, first preface lathe, second preface lathe and burring processing equipment, storage device is last to be equipped with a plurality of storage framves and to store a certain amount of wheel hub and fix a position wheel hub, the transfer robot carries out material loading and reloading to a plurality of processing equipment from storage device wheel hub, first transfer platform realizes the material transfer between preface processing and the preface processing of second preface, the material transfer between the processing equipment of second preface processing and the burring is realized to the second transfer platform, whole process can realize the automation, the workman's that significantly reduces participates in, be favorable to reducing workman intensity of labour, guarantee workman's safety. Simultaneously, the front and the back of the hub are respectively processed through the first-order lathe and the second first-order lathe, a mechanism for overturning the hub is not required, the structure is simplified, and the equipment cost is reduced.

According to the automatic production line for turning the wheel hub, the clamping mechanism is provided with two clamping cylinders and is respectively arranged at two ends of the connecting arm, the clamping cylinders are internally provided with the clamping jaws, and the center of the connecting arm is arranged at the tail end of the wrist of the robot.

According to the automatic production line for turning the wheel hub, the turntable is provided with the four storage racks, the storage racks are provided with the storage bins, each storage bin stores one wheel hub, the storage bins are provided with the rough positioning devices for the wheel hubs, and the rough positioning of the wheel hubs is beneficial to preventing interference in machining caused by incorrect placement of the wheel hubs.

According to the automatic production line for turning the wheel hub, the hollow part allowing the clamping mechanism to penetrate through the storage bin from top to bottom is arranged in the middle of the storage bin, so that the action of clamping the wheel hub by the clamping mechanism is facilitated, and debugging and calibration are facilitated.

According to the automatic production line for turning the wheel hub, the first base is provided with the horizontally-installed slide rail and the pushing cylinder, the wheel hub support is installed on the slide rail, the pushing cylinder is connected to the base and the wheel hub support, the linear movement of the wheel hub support is achieved when the pushing cylinder moves, and when the wheel hub is placed on the first bottom, the pushing cylinder pushes the wheel hub support to slide towards the two-sequence robot, and the connection of the first-sequence processing and the second-sequence processing is achieved.

According to the automatic production line for turning the hub, the hub support is provided with the bottom plate, the inclined plate and the V-shaped frame, the inclined plate forms a certain inclined angle with the horizontal plane, the inclined plate is installed on the bottom plate and used for supporting the front side or the back side of the hub, and the V-shaped frame supports the radial outer edge of the hub.

According to the automatic production line for turning the hub, the second transfer table is provided with the automatic positioning device, the automatic positioning device is positioned in the middle of the supporting mechanism and is used for automatically positioning the hub, and interference and collision in the machining process are avoided.

According to the automatic production line for turning the hub, the positioning detection mechanism detects the position of the hub by detecting the position of the screw hole of the hub, the method is simple and easy to realize, and the equipment cost is reduced.

According to the automatic production line for turning the wheel hub, the six-axis transfer robot is used by the first-order robot and the six-axis transfer robot is used by the second-order robot, the four-axis transfer robot is used by the third-order robot, a plurality of freedom degrees of movement of the transfer robot are required in the first-order and second-order processing, and the wheel hub only needs to be horizontally taken up and put down when being transferred to the deburring processing equipment, so that the four-axis robot is beneficial to meeting the requirements and reducing the equipment cost.

According to the automatic production line for turning the wheel hub, the other side, opposite to the second-order robot, of the third-order robot is provided with the blanking table, and the blanking table is used for storing the machined wheel hub.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention is further described below with reference to the accompanying drawings and examples;

FIG. 1 is a top view of an automatic hub turning line according to an embodiment of the present invention;

FIG. 2 is a top view of a magazine according to an embodiment of the present invention;

FIG. 3 is a top view of a transfer robot and a gripping mechanism according to an embodiment of the present invention;

fig. 4 is a plan view of a first relay stand according to an embodiment of the present invention;

fig. 5 is a plan view of a second relay stand according to the embodiment of the present invention;

reference numerals:

a storage device 100; a turntable 110; a storage rack 120; a hub 130; a positioning detection mechanism 140;

a first lathe 200; a second first-order lathe 210; a first second-order lathe 220; a second lathe 230; a first machining center 240; a second machining center 241;

a robot 300; a connecting arm 301; a second-order robot 310; a three-sequence robot 320;

a first relay stand 400; a first base 401; a base plate 402; a push cylinder 403; a swash plate 404; a V-shaped frame 405; a second relay stand 410; a second base 411; a support post 412; an automatic positioning device 413; a blanking table 420;

a fence 500.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 and 2, an embodiment of the present invention provides an automatic hub turning production line, including:

storage device 100 is equipped with carousel 110, storage frame 120 and location detection mechanism 140, and carousel 110 below is connected with the base that is fixed in ground, the inside carousel motor that is equipped with of base, thereby the preferred servo motor of motor and step motor guarantee the rotation precision, thereby the motor drives storage frame 120 through drive carousel 110 and produces the rotation and be convenient for the transport manipulator to press from both sides and get wheel hub 130 on a plurality of work or material rest. Further, a speed reducer is connected between the motor and the base, and an RV or harmonic speed reducer can be selected for use, so that the rotating speed is reduced, the rotating torque is improved, and the rotating disc 110 can rotate stably.

Storage frame 120 is the metal finished piece, can select to use carbon steel, stainless steel or aluminum alloy tubular product or panel, and the aluminium alloy panel of the preferred use of this scheme passes through the bolt fastening concatenation to be made, is favorable to weight reduction, reduces the power of carousel motor, helps reducing equipment cost, and the low, easy equipment of simultaneous processing cost. The storage rack 120 is provided with a plurality of storage bins, each storage bin is a space formed by two bearing plates for bearing the outer edge of the hub 130 and the upright posts, and the upright posts are located on two sides of the bearing plates and connected with the bearing plates through bolts. The space is arranged between the two bearing plates, so that the clamping mechanism can be allowed to pass through from top to bottom, the action of clamping the hub 130 by the clamping mechanism is facilitated to be simplified, and debugging and calibration are facilitated. A wheel hub 130 is stored in every preferred storage silo of this scheme, is equipped with the thick positioner to wheel hub 130 on the storage silo, installs a plurality of set screws on the bearing board, utilizes set screws to carry out thick location to wheel hub 130's spoke when workman's material loading place wheel hub 130 in the storage silo, and easy operation conveniently easily masters. The rotary table 110 is provided with a plurality of storage racks 120, four storage racks 120 are preferably arranged on the circumference at uniform angles according to the size of the hub 130, and the angles of two adjacent storage racks 120 on the circumference are separated by 90 degrees, so that the rotary table is convenient to debug in practical use.

Referring to fig. 2, location detection mechanism 140 sets up on the base between storage device 100 and an preface robot 300, is equipped with a plurality of sensor on the location detection mechanism 140, and the sensor uses including photoelectric sensor, magnetic induction switch etc. the position of sensor and the last screw processing position one-to-one of wheel hub 130, and the sensor is used for detecting the screw position on the wheel hub 130 to judge the position of wheel hub 130 spoke, guarantee that follow-up spoke burring to wheel hub 130 goes on smoothly.

And the processing equipment is provided with two rows, each row comprises first-order outer edge processing equipment, second-order outer edge processing equipment and deburring processing equipment 240 which are arranged in sequence, and intervals are arranged between the two rows of processing equipment. Considering that the hub 130 needs to machine the front and rear surfaces, the first-order outer edge machining apparatus includes a first-order lathe 200 and a second first-order lathe 210 for machining the front outer edge surface and the shaft hole of the hub 130; the second-order outer edge machining apparatus includes a first second-order lathe 220 and a second-order lathe 230 for machining the reverse outer edge surface of the hub 130, the outer end surface of the shaft hole, and the shaft hole; the deburring machining apparatus includes a first machining center (240) and a second machining center (241) for removing casting burrs from the rim of a spoke on a hub (130). The first-order outer edge machining equipment and the second-order outer edge machining equipment selected for use in the scheme are horizontal numerically controlled lathes, and the deburring machining equipment 240 is a three-axis vertical deburring workbench. For the front and back processing of wheel hub 130, also can set up the upset workstation simultaneously, place in the upset workstation through transfer robot after wheel hub 130 accomplishes the front processing of an preface and overturns, utilize a processing equipment to accomplish the front and back processing of wheel hub 130.

The transfer robot comprises a first-order robot 300, a second-order robot 310 and a third-order robot 320, the first-order robot 300 is located at an interval between a first-order lathe 200 and a second first-order lathe 210, the first-order robot 300 is used for loading and unloading materials on the first-order lathe 200 and the second first-order lathe 210, the second-order robot 310 is located at an interval between a first second-order lathe 220 and a second-order lathe 230, the second-order robot 310 is used for loading and unloading materials on the first second-order lathe 220 and the second-order lathe 230, the third-order robot 320 is located at an interval between deburring devices on two sides, and the third-order robot 320 is used for loading and unloading the deburring devices.

Alternatively, the first-order robot 300 and the second-order robot 310 use six-axis transfer robots, the third-order robot 320 uses four-axis transfer robots, a plurality of degrees of freedom of movement involving the transfer robots are required in the first-order and second-order machining, and only the hub 130 needs to be horizontally picked up and put down in transferring the hub 130 to the deburring machining apparatus 240, so that the use of the four-axis robot is advantageous in meeting the demand while reducing the equipment cost.

The clamping mechanism comprises a clamping cylinder and a connecting arm 301, the connecting arm 301 is installed on the transfer robot, and the clamping cylinder is installed on the connecting arm 301. Referring to fig. 3, the middle part of the connecting arm 301 is mounted at the end of the wrist of the transfer robot through a bolt connection, and both ends of the connecting arm are respectively provided with a clamping cylinder. In view of easy calibration, the gripping cylinder preferably uses a three-jaw air chuck with self-centering. Press from both sides and install the clamping jaw on getting the cylinder, the clamping jaw uses and includes that metal material such as carbon steel, stainless steel or aluminum alloy makes, and this scheme is preferred to use carbon steel material to guarantee that the clamping jaw has good structural strength and rigidity. Further, the clamping jaw realizes wheel hub 130's transport through the boss that presss from both sides tight wheel hub 130 shaft hole, compares and gets the mode this scheme that gets the radial outward flange of wheel hub 130 more and is favorable to getting the mechanism and has a compact structure in pressing from both sides, and the different external diameter size's of easy adaptation wheel hub, and simple structure is reliable, is favorable to reducing equipment cost and the debugging degree of difficulty.

First transfer platform 400, set up between first order robot 300 and second order robot 310, be equipped with first base 401 and wheel hub support on first transfer platform 400, wheel hub support and base sliding connection. The first base 401 is provided with a slide rail and a pushing cylinder 403 which are horizontally arranged, the hub support is arranged on the slide rail, the pushing cylinder 403 is connected to the base and the hub support, and the linear movement of the hub support is realized when the pushing cylinder 403 moves. The hub support comprises a bottom plate 402, an inclined plate 404 and a V-shaped frame 405, wherein the bottom plate 402 is arranged on a sliding rail of the first base 401, the inclined plate 404 is fixed on the bottom plate 402, the inclined plate 404 and the bottom plate 402 have a certain inclination angle, and the V-shaped frame 405 is fixed on the inclined plate 404. When the hub is placed on the hub bracket, the V-shaped frame 405 supports the radial outer edge of the hub 130, and the inclined plate 404 supports the front side or the back side of the hub 130, it can be understood that the V-shaped frame 405 has a self-centering effect on the hub 130, so that the support structure of the hub bracket is simple and reliable, and a good hub 130 fixing effect is achieved. On the other hand, first base 401 can use the aluminium alloy to form through bolted connection concatenation or use the carbon steel pipe to form through the welding, and the preferred aluminium alloy concatenation of this scheme is favorable to reduce cost and weight. In the present embodiment, the bottom plate 402, the inclined plate 404 and the V-shaped frame 405 are preferably made of carbon steel in consideration of structural rigidity and transmission stability. Meanwhile, a sensor for detecting a signal of the hub 130 is arranged on the hub bracket, and comprises a photoelectric sensor or a magnetic induction sensor. The hub support is provided with a first-order position and a second-order position, the first-order position is located when the hub support is empty, when the hub 130 is placed on the hub support, the pushing cylinder 403 is started to push the hub support to slide to the second-order position, when the hub 130 is taken away from the first-order position, the pushing cylinder 403 is started to push the hub support to slide back to the first-order position, and the first-order process and the second-order process are connected by moving the hub support to switch between the first-order position and the second-order position.

And the second transferring table 410 is arranged between the second-order robot 310 and the third-order robot 320, and a second base 411 and a supporting mechanism are arranged on the second transferring table 410 and connected to the second base 411. Second base 411 can use the aluminium alloy to form through bolted connection concatenation or use the carbon steel pipe to form through the welding, and the preferred aluminium alloy concatenation of this scheme is favorable to reduce cost and weight. The supporting mechanism comprises a plurality of supporting columns 412, the supporting columns 412 support the axial end face of the hub 130, and the heights of the supporting columns 412 are equal, so that the hub 130 is horizontally placed. While the second transfer table 410 is provided with sensors, including photoelectric or magnetic sensors, for detecting the in-place signal of the hub 130. The second transfer table 410 is provided with an automatic positioning device 413, the automatic positioning device 413 is located below the hub 130 placed on the supporting column 412, and when the hub 130 is placed on the second transfer table 410, the automatic positioning device 413 automatically positions the hub 130, so that interference and collision in the subsequent processing process are avoided. The automatic positioning device 413 of the present embodiment preferably positions the hub 130 by using a cylinder, and the structure is simple and easy to implement.

And a discharging table 420 located at the other side of the three-sequence robot 320 opposite to the two-sequence robot 310 for placing the hub 130 having completed the process.

Optionally, the production flow of the automatic hub turning production line of the scheme is as follows: the first-order robot 300 grips the hub 130 from the magazine 100, places the hub 130 on the positioning and detecting mechanism 140 for detection, and then places the hub 130 on the first-order lathe 200 for first-order machining; after the first-order lathe 200 is started and starts to process, the first-order robot 300 clamps the hub 130 from the storage device 100, places the hub 130 on the positioning detection mechanism 140 for detection, and then places the hub 130 on the second first-order lathe 210 for first-order processing;

after the first lathe 200 finishes processing, the first-order robot 300 takes the hub 130 out of the first lathe 200 and places the hub on the first transfer table 400;

the second-order robot 310 clamps the hub 130 which finishes the first-order processing from the first transfer table 400, and places the hub on the first second-order lathe 220 for processing, the first second-order lathe 220 starts and starts processing, and the first transfer table 400 is in an idle state, so that the second-order robot 310 enters a waiting state;

after the second first-order lathe 210 finishes processing, the first-order robot 300 takes the hub 130 out of the second first-order lathe 210 and places the hub 130 on the first transfer table 400, and the second-order robot 310 in a waiting state clamps the hub 130 which finishes the first-order processing from the first transfer table 400 and places the hub 130 on the second-order lathe 230 for processing;

after the first second-order lathe 220 finishes processing, the second-order robot 310 takes out the hub 130 which finishes the second-order processing from the first second-order lathe 220 and places the hub on the second transfer table 410; then, the three-sequence robot 320 clamps the hub 130 which completes the second-sequence processing from the second transfer table 410, and places the hub on the first processing center 240 for deburring processing;

after the second-order lathe 230 finishes processing, the second-order robot 310 takes out the hub 130 which finishes the second-order processing from the second-order lathe 230 and places the hub on the second transfer table 410;

the three-sequence robot 320 clamps the hub 130 which is subjected to the second-sequence machining from the second transfer table 410, places the hub 130 on the second machining center 241 for deburring machining, and after the deburring machining is completed, the three-sequence robot 320 takes out the hub 130 and places the hub 130 on the discharging table 420.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like 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.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a wheel hub turning automation line which characterized in that includes:

the storage device (100) is provided with a rotary table (110), a storage rack (120) and a positioning detection mechanism (140), the storage rack (120) stores a plurality of hubs (130), the rotary table (110) is provided with a plurality of storage racks (120), and the positioning detection mechanism (140) is installed outside the range covered by the rotary table (110);

the machining equipment comprises two rows, wherein each row comprises first-order outer edge machining equipment, second-order outer edge machining equipment and deburring machining equipment which are arranged in sequence, intervals are reserved between the two rows of machining equipment, and the first-order outer edge machining equipment comprises a first-order lathe (200) and a second first-order lathe (210) which are used for machining the front outer edge surface and the shaft hole of the hub (130); the second-sequence outer edge processing equipment comprises a first second-sequence lathe (220) and a second-sequence lathe (230) which are used for processing the reverse outer edge surface of the hub (130), the outer end surface of the shaft hole and the shaft hole; the deburring machining equipment comprises a first machining center (240) and a second machining center (241) which are used for removing casting burrs at the edge of a spoke on the hub (130);

the handling robot is used for loading and unloading the hub to the machining equipment and comprises a first-order robot (300), a second-order robot (310) and a third-order robot (320) which are sequentially arranged, the first-order robot (300) is located in the interval between the first-order lathe (200) and the second first-order lathe (210), the second-order robot (310) is located in the interval between the first second-order lathe (220) and the second-order lathe (230), and the third-order robot (320) is located in the interval between the deburring machining equipment (240) on the two sides;

the clamping mechanism is arranged on the transfer robot and comprises a clamping cylinder and a connecting arm (301), the connecting arm (301) is installed on the transfer robot, the clamping cylinder is installed on the connecting arm (301), and the transfer robot clamps the shaft hole boss of the hub (130) through the clamping mechanism;

the first transfer platform (400) is arranged between the first-order robot (300) and the second-order robot (310), a first base (401) and a hub (130) support are arranged on the first transfer platform (400), and the hub (130) support is connected with the base in a sliding mode;

the second transfer platform (410) is arranged between the second-order robot (310) and the third-order robot (320), a second base (411) and a supporting mechanism are arranged on the second transfer platform (410), and the supporting mechanism is connected to the second base (411);

and the automatic control system is connected with and controls the processing equipment, the storage device (100), the carrying robot, the clamping mechanism, the first transfer table (400) and the second transfer table (410).

2. The automatic hub turning production line of claim 1, wherein: the clamping mechanism is provided with two clamping cylinders and is respectively arranged at two ends of the connecting arm, a clamping jaw is arranged in each clamping cylinder, and the center of the connecting arm is arranged at the tail end of the wrist of the robot.

3. The automatic hub turning production line of claim 1, wherein: the four storage racks (120) are arranged and are all located on the rotary table (110), a plurality of storage bins are arranged on the storage racks (120), each storage bin stores one wheel hub (130), and a coarse positioning device for the wheel hubs (130) is arranged on each storage bin.

4. The automatic hub turning production line of claim 1, wherein: the middle part of the storage bin is provided with a hollow part allowing the clamping mechanism to penetrate through from top to bottom.

5. The automatic hub turning production line of claim 1, wherein: the wheel hub support is characterized in that a sliding rail and a pushing cylinder (403) which are horizontally installed are arranged on the first base (401), the wheel hub (130) is installed on the sliding rail in a supporting mode, the pushing cylinder (403) is connected to the base and the wheel hub (130) support, and linear movement of the wheel hub (130) support is achieved when the pushing cylinder (403) moves.

6. The automatic hub turning production line of claim 5, wherein: the hub support is provided with a bottom plate (402), an inclined plate (404) and a V-shaped frame (405), the inclined plate (404) forms a certain inclined angle with the horizontal plane, the inclined plate (404) is installed on the bottom plate (402), the inclined plate (404) supports the end face of the hub (130), and the V-shaped frame (405) supports the radial outer edge of the hub (130).

7. The automatic hub turning production line of claim 1, wherein: and an automatic positioning device (413) is arranged on the second transfer table (410), and the automatic positioning device (413) is positioned in the middle of the supporting mechanism and is used for automatically positioning the hub (130).

8. The automatic hub turning production line of claim 1, wherein: the positioning detection mechanism (140) detects the position of the hub (130) by detecting the position of a screw hole of the hub (130).

9. The automatic hub turning production line of claim 1, wherein: the first-order robot (300) and the second-order robot (310) use six-axis transfer robots, and the third-order robot (320) uses four-axis transfer robots.

10. The automatic hub turning production line of claim 1, wherein: the hub automation line is provided with a blanking table (420), and the blanking table (420) is located on the other side of the three-sequence robot (320) opposite to the two-sequence robot (310).