阅读说明：本技术 一种智能制造流水线的加工方法 (Processing method of intelligent manufacturing assembly line ) 是由 谢翔宇 金春星 谢岳庆 于 2021-06-25 设计创作，主要内容包括：本发明涉及一种智能制造流水线的加工方法,其采用一种智能制造流水线,该流水线包括立体仓库、加工中心、光学检验单元、轴承装配和打标单元、机械手臂、旋转中转转换台以及AGV小车；其中,所述立体仓库、加工中心、光学检验单元、轴承装配和打标单元依序排布而形成一闭环流水线；所述加工中心、光学检验单元、轴承装配和打标单元均配置有机械手臂和旋转中转转换台；所述AGV小车和立体仓库、旋转中转转换台对接,并能在立体仓库、加工中心、光学检验单元、轴承装配和打标单元之间行走,通过上述各个单元协同配合,从而完成对工件进行加工。本发明的智能制造流水线的加工方法具有自动化程度高,整体协调性好,且定位精确等诸多优点。(The invention relates to a processing method of an intelligent manufacturing assembly line, which adopts the intelligent manufacturing assembly line, wherein the assembly line comprises a stereoscopic warehouse, a processing center, an optical inspection unit, a bearing assembling and marking unit, a mechanical arm, a rotary transfer conversion table and an AGV trolley; the three-dimensional warehouse, the machining center, the optical inspection unit, the bearing assembling and marking unit are sequentially arranged to form a closed-loop assembly line; the machining center, the optical inspection unit, the bearing assembling and marking unit are all provided with a mechanical arm and a rotary transfer conversion table; the AGV trolley is in butt joint with the stereoscopic warehouse and the rotary transfer conversion table, can walk among the stereoscopic warehouse, the machining center, the optical inspection unit, the bearing assembly and the marking unit, and is cooperatively matched with each other through the units, so that the workpieces are machined. The processing method of the intelligent manufacturing assembly line has the advantages of high automation degree, good overall coordination, accurate positioning and the like.)

1. A processing method of an intelligent manufacturing assembly line is characterized in that: the intelligent manufacturing assembly line comprises a stereoscopic warehouse, a machining center, an optical inspection unit, a bearing assembling and marking unit, a mechanical arm, a rotary transfer conversion table and an AGV trolley; the three-dimensional warehouse, the machining center, the optical inspection unit, the bearing assembling and marking unit are sequentially arranged to form a closed-loop assembly line; the machining center, the optical inspection unit, the bearing assembling and marking unit are all provided with a mechanical arm and a rotary transfer conversion table; the AGV trolley is in butt joint with the stereoscopic warehouse and the rotary transfer conversion table and can walk among the stereoscopic warehouse, the machining center, the optical inspection unit, the bearing assembling and marking unit;

the processing method comprises the following process steps:

1) putting the blank raw material into a raw material warehouse;

2) the stacker takes materials from a raw material warehouse with a specified warehouse number and outputs the materials to the AGV trolley, the AGV trolley lifts the material tray by 50mm and then conveys the material tray to a machining center station, the AGV trolley lowers the material tray by 50mm, and the material tray is placed on the rotary transfer table;

3) the mechanical arm of the machining center station grabs the raw materials on the rotary transfer platform and clamps the raw materials to the machining center for machining;

4) a mechanical arm of a machining center station grabs a machined workpiece and places the workpiece on a rotary transfer table, the rotary transfer table sends the workpiece to an AGV, the AGV is jacked by 50mm, and a material tray is conveyed to an optical inspection unit;

5) when the AGV trolley reaches the station of the optical inspection unit, the trolley descends the material tray by 50mm, and the material tray is placed on a rotating transfer conversion table of the station of the optical inspection unit;

6) a mechanical arm of the station of the optical inspection unit grabs the workpiece on the centering rotary table to the optical inspection unit for optical projection detection;

7) after detection, the mechanical arm is used for grabbing the workpiece, the workpiece is placed on a material tray placed on a transfer table, then the AGV trolley is jacked by 50mm, and the material tray is jacked up to be transferred to a bearing assembling and marking unit working station;

8) after the material plate arrives at the position of a rotary transfer conversion table of a bearing assembling and marking unit workstation, the AGV trolley descends the material plate by 50mm, and the material plate is placed on the rotary transfer conversion table;

9) the mechanical arm grabs a workpiece and places the workpiece on the workpiece placing plate, then grabs a bearing in a bearing material tray and places the bearing on the workpiece, moves the linear sliding table of the lead screw guide rail to a specified position to carry out bearing press mounting on the workpiece, grabs the workpiece and moves to a marking machine to mark, the mechanical arm grabs the workpiece by a station after marking is finished and places a transfer table, then the AGV trolley is jacked for 50mm, and the jacking material tray is transferred to a finished product warehouse;

10) and after the finished product is transferred to a finished product warehouse, the finished product warehouse is moved to a finished product warehouse with a designated warehouse number by a stacker to be warehoused. The AGV then returns to the point of the raw material warehouse to wait.

2. The process of the intelligent manufacturing line of claim 1, wherein: the stereoscopic warehouse comprises a raw material warehouse, a finished product warehouse and a warehouse stacker; wherein the raw material warehouse and the finished product warehouse are oppositely arranged; the warehouse stacker is arranged between the raw material warehouse and the finished product warehouse and comprises a ground rail, a guide rail, a sliding block seat, a speed reducing motor, a lifting guide rail seat, a screw rod, a lifting seat, a material tray bracket and a screw rod motor; the ground rail is laid between the raw material warehouse and the finished product warehouse and arranged along the extending direction of the warehouses; the guide rail is laid on the ground rail; the sliding block seat is matched with the guide rail and is driven by the speed reducing motor to move along the guide rail; the lifting guide rail seat is vertically arranged on the sliding block seat; the screw rod is vertically pivoted on the lifting guide rail seat; the lifting seat is matched with the screw rod and driven by the screw rod to lift; the tray bracket is arranged on one side of the lifting seat; the screw rod motor is connected with and drives the screw rod to rotate.

3. The process of the intelligent manufacturing line of claim 2, wherein: the ground rail is provided with a rack; the speed reducing motor is connected with a driving gear; the driving gear is meshed with the rack; the servo motor is arranged on the tray bracket and drives the tray bracket to extend into the raw material warehouse, the finished product warehouse and the AGV; the raw material warehouse and the finished product warehouse have the same structure and comprise a plurality of stand columns, and a plurality of layers of material trays are arranged between adjacent stand columns.

4. The process of the intelligent manufacturing line of claim 1, wherein: the bearing assembling and marking unit comprises a rack, an installation bottom plate, a linear sliding table of a lead screw guide rail, a thin cylinder, an installation supporting block, a workpiece placing plate, an upright post and a pressing cylinder; a bearing tray is arranged on the frame; the mounting bottom plate is horizontally fixed on the rack; the linear sliding table of the lead screw guide rail is arranged on the mounting bottom plate; the thin cylinder is connected to the linear sliding table of the lead screw guide rail and is driven by the linear sliding table of the lead screw guide rail to move; the thin cylinder can lift and convey the workpiece placing plate; the mounting support block is fixed on the mounting bottom plate and can support the workpiece placing plate; the upright posts are vertically arranged on the bottom plate, and the top of the upright posts is provided with an upper beam; the lower air cylinder is arranged on the upper beam, and a bearing pressure head is connected onto the lower air cylinder.

5. The process of the intelligent manufacturing line of claim 1, wherein: the mechanical arm comprises a clamping jaw device, and the clamping jaw device comprises a clamping jaw connecting seat, a cylinder connecting plate, a three-jaw pneumatic finger cylinder, a stepped clamping jaw, a workpiece elastic pad and a spring plunger; the air cylinder connecting plate is arranged on two sides of the clamping jaw connecting seat; the three-jaw pneumatic finger cylinder is arranged on the cylinder connecting plate; the stepped clamping jaw is arranged on the three-jaw pneumatic finger cylinder and is driven by the three-jaw pneumatic finger cylinder to clamp or release a workpiece; the workpiece elastic pad is connected with the three-jaw pneumatic finger cylinder through an auxiliary connecting block and a bolt spring; the spring plunger is arranged on the stepped clamping jaw and can be abutted against a workpiece.

6. The process of the intelligent manufacturing line of claim 5, wherein: the stepped clamping jaw comprises a clamping cushion block, and the clamping cushion block is fixed with the stepped clamping jaw through a bolt; the spring plunger is arranged on the clamping cushion block; the workpiece elastic pad is Y-shaped and is positioned between the stepped clamping jaws.

7. The process of the intelligent manufacturing line of claim 5, wherein: one end of the auxiliary connecting block is fixed on the three-jaw pneumatic finger cylinder; one end of the bolt spring is connected with the auxiliary connecting block, and the other end of the bolt spring is connected with the workpiece elastic pad, so that the workpiece elastic pad can elastically abut against the workpiece; the distance between the stepped clamping jaw and the central axis is 78 +/-8 mm and 45 +/-8 mm.

8. The process of the intelligent manufacturing line of claim 1, wherein: the rotary transfer platform comprises a base, an installation platform, a positioning bracket, a magnetic coupling rodless guide cylinder, a thin guide cylinder, a rotary cylinder and a rotary supporting plate; the mounting table is fixed at one end of the base, the positioning brackets are mounted at two sides of the top of the mounting table, and a material tray is supported on the positioning brackets; the magnetic coupling rodless guide cylinder is arranged on the base and is positioned on one side of the mounting table; the thin guide cylinder is supported on the magnetic coupling rodless guide cylinder and is linked with the magnetic coupling rodless guide cylinder; the rotary air cylinder is arranged on the thin guide air cylinder; the rotary supporting plate is connected to the rotary air cylinder and is driven by the rotary air cylinder to rotate; the rotary supporting plate can support the material tray and place the material tray on the AGV trolley.

9. The process of the intelligent manufacturing line of claim 8, wherein: the top of the positioning bracket is provided with a positioning lug, and the side surface of the positioning lug is provided with a guide inclined plane; the material tray is provided with a notch clamped in the positioning bump; one end of the rotary supporting plate is provided with a balancing weight.

10. The process of the intelligent manufacturing line of claim 8, wherein: be equipped with dolly locating support on the AGV dolly, also be equipped with the location lug with the breach joint on the dolly locating support.

[ technical field ] A method for producing a semiconductor device

The invention relates to a processing method of an intelligent manufacturing assembly line, in particular to a processing method of an intelligent manufacturing assembly line for bearing processing, and belongs to the technical field of industrial automation equipment.

[ background of the invention ]

The processing method of the intelligent manufacturing assembly line is a system which widely adopts an automatic control and automatic adjustment device in industrial production and is used for replacing a manual control machine to carry out processing production, and the processing method can improve the safety of the production process, improve the production efficiency and the product quality and reduce the loss of raw materials and energy in the production process.

An intelligent manufacturing assembly line in the prior art generally comprises a warehouse unit, a processing unit, an assembling unit, a marking unit, a detecting unit, a mechanical arm, an AGV and the like. However, the existing processing method of the intelligent manufacturing line has the following defects when in use:

1. the warehouse unit still needs the intervention of workers when in use, and the automation degree is low; meanwhile, raw materials and finished products cannot be stored simultaneously, and certain application limitation is realized.

2. The coordination of assembly and marking is poor, the automation degree is low, and some operations even need manual intervention, so that the production efficiency is influenced;

3. the grabbing position of the mechanical arm is not easy to adjust when the mechanical arm grabs the workpiece; the position of the workpiece is not easy to position when the workpiece is placed on the equipment, so that the subsequent assembly precision is influenced;

4. when the workpieces are transferred between different units, the workpieces are not easy to position, so that the mechanical arm is not easy to grab the workpieces, or the grabbing position is not accurate.

Therefore, in order to solve the above technical problems, it is necessary to provide an innovative processing method for an intelligent manufacturing line to overcome the above-mentioned drawbacks in the prior art.

[ summary of the invention ]

In order to solve the above problems, the present invention aims to provide a processing method of an intelligent manufacturing assembly line, which has high automation degree, good overall coordination and accurate positioning.

In order to achieve the purpose, the invention adopts the technical scheme that: a processing method of an intelligent manufacturing assembly line adopts the intelligent manufacturing assembly line, and the assembly line comprises a stereoscopic warehouse, a processing center, an optical inspection unit, a bearing assembling and marking unit, a mechanical arm, a rotary transfer conversion table and an AGV trolley; the three-dimensional warehouse, the machining center, the optical inspection unit, the bearing assembling and marking unit are sequentially arranged to form a closed-loop assembly line; the machining center, the optical inspection unit, the bearing assembling and marking unit are all provided with a mechanical arm and a rotary transfer conversion table; the AGV trolley is in butt joint with the stereoscopic warehouse and the rotary transfer conversion table and can walk among the stereoscopic warehouse, the machining center, the optical inspection unit, the bearing assembling and marking unit;

the processing method comprises the following process steps:

1) putting the blank raw material into a raw material warehouse;

2) the stacker takes materials from a raw material warehouse with a specified warehouse number and outputs the materials to the AGV trolley, the AGV trolley lifts the material tray by 50mm and then conveys the material tray to a machining center station, the AGV trolley lowers the material tray by 50mm, and the material tray is placed on the rotary transfer table;

3) the mechanical arm of the machining center station grabs the raw materials on the rotary transfer platform and clamps the raw materials to the machining center for machining;

4) a mechanical arm of a machining center station grabs a machined workpiece and places the workpiece on a rotary transfer table, the rotary transfer table sends the workpiece to an AGV, the AGV is jacked by 50mm, and a material tray is conveyed to an optical inspection unit;

5) when the AGV trolley reaches the station of the optical inspection unit, the trolley descends the material tray by 50mm, and the material tray is placed on a rotating transfer conversion table of the station of the optical inspection unit;

6) a mechanical arm of the station of the optical inspection unit grabs the workpiece on the centering rotary table to the optical inspection unit for optical projection detection;

7) after detection, the mechanical arm is used for grabbing the workpiece, the workpiece is placed on a material tray placed on a transfer table, then the AGV trolley is jacked by 50mm, and the material tray is jacked up to be transferred to a bearing assembling and marking unit working station;

8) after the material plate arrives at the position of a rotary transfer conversion table of a bearing assembling and marking unit workstation, the AGV trolley descends the material plate by 50mm, and the material plate is placed on the rotary transfer conversion table;

9) the mechanical arm grabs a workpiece and places the workpiece on the workpiece placing plate, then grabs a bearing in a bearing material tray and places the bearing on the workpiece, moves the linear sliding table of the lead screw guide rail to a specified position to carry out bearing press mounting on the workpiece, grabs the workpiece and moves to a marking machine to mark, the mechanical arm grabs the workpiece by a station after marking is finished and places a transfer table, then the AGV trolley is jacked for 50mm, and the jacking material tray is transferred to a finished product warehouse;

10) and after the finished product is transferred to a finished product warehouse, the finished product warehouse is moved to a finished product warehouse with a designated warehouse number by a stacker to be warehoused. The AGV then returns to the point of the raw material warehouse to wait.

The processing method of the intelligent manufacturing assembly line further comprises the following steps: the stereoscopic warehouse comprises a raw material warehouse, a finished product warehouse and a warehouse stacker; wherein the raw material warehouse and the finished product warehouse are oppositely arranged; the warehouse stacker is arranged between the raw material warehouse and the finished product warehouse and comprises a ground rail, a guide rail, a sliding block seat, a speed reducing motor, a lifting guide rail seat, a screw rod, a lifting seat, a material tray bracket and a screw rod motor; the ground rail is laid between the raw material warehouse and the finished product warehouse and arranged along the extending direction of the warehouses; the guide rail is laid on the ground rail; the sliding block seat is matched with the guide rail and is driven by the speed reducing motor to move along the guide rail; the lifting guide rail seat is vertically arranged on the sliding block seat; the screw rod is vertically pivoted on the lifting guide rail seat; the lifting seat is matched with the screw rod and driven by the screw rod to lift; the tray bracket is arranged on one side of the lifting seat; the screw rod motor is connected with and drives the screw rod to rotate.

The processing method of the intelligent manufacturing assembly line further comprises the following steps: the ground rail is provided with a rack; the speed reducing motor is connected with a driving gear; the driving gear is meshed with the rack; the servo motor is arranged on the tray bracket and drives the tray bracket to extend into the raw material warehouse, the finished product warehouse and the AGV; the raw material warehouse and the finished product warehouse have the same structure and comprise a plurality of stand columns, and a plurality of layers of material trays are arranged between adjacent stand columns.

The processing method of the intelligent manufacturing assembly line further comprises the following steps: the bearing assembling and marking unit comprises a rack, an installation bottom plate, a linear sliding table of a lead screw guide rail, a thin cylinder, an installation supporting block, a workpiece placing plate, an upright post and a pressing cylinder; a bearing tray is arranged on the frame; the mounting bottom plate is horizontally fixed on the rack; the linear sliding table of the lead screw guide rail is arranged on the mounting bottom plate; the thin cylinder is connected to the linear sliding table of the lead screw guide rail and is driven by the linear sliding table of the lead screw guide rail to move; the thin cylinder can lift and convey the workpiece placing plate; the mounting support block is fixed on the mounting bottom plate and can support the workpiece placing plate; the upright posts are vertically arranged on the bottom plate, and the top of the upright posts is provided with an upper beam; the lower air cylinder is arranged on the upper beam, and a bearing pressure head is connected onto the lower air cylinder.

The processing method of the intelligent manufacturing assembly line further comprises the following steps: the mechanical arm comprises a clamping jaw device, and the clamping jaw device comprises a clamping jaw connecting seat, a cylinder connecting plate, a three-jaw pneumatic finger cylinder, a stepped clamping jaw, a workpiece elastic pad and a spring plunger; the air cylinder connecting plate is arranged on two sides of the clamping jaw connecting seat; the three-jaw pneumatic finger cylinder is arranged on the cylinder connecting plate; the stepped clamping jaw is arranged on the three-jaw pneumatic finger cylinder and is driven by the three-jaw pneumatic finger cylinder to clamp or release a workpiece; the workpiece elastic pad is connected with the three-jaw pneumatic finger cylinder through an auxiliary connecting block and a bolt spring; the spring plunger is arranged on the stepped clamping jaw and can be abutted against a workpiece.

The processing method of the intelligent manufacturing assembly line further comprises the following steps: the stepped clamping jaw comprises a clamping cushion block, and the clamping cushion block is fixed with the stepped clamping jaw through a bolt; the spring plunger is arranged on the clamping cushion block; the workpiece elastic pad is Y-shaped and is positioned between the stepped clamping jaws.

The processing method of the intelligent manufacturing assembly line further comprises the following steps: one end of the auxiliary connecting block is fixed on the three-jaw pneumatic finger cylinder; one end of the bolt spring is connected with the auxiliary connecting block, and the other end of the bolt spring is connected with the workpiece elastic pad, so that the workpiece elastic pad can elastically abut against the workpiece; the distance between the stepped clamping jaw and the central axis is 78 +/-8 mm and 45 +/-8 mm.

The processing method of the intelligent manufacturing assembly line further comprises the following steps: the rotary transfer platform comprises a base, an installation platform, a positioning bracket, a magnetic coupling rodless guide cylinder, a thin guide cylinder, a rotary cylinder and a rotary supporting plate; the mounting table is fixed at one end of the base, the positioning brackets are mounted at two sides of the top of the mounting table, and a material tray is supported on the positioning brackets; the magnetic coupling rodless guide cylinder is arranged on the base and is positioned on one side of the mounting table; the thin guide cylinder is supported on the magnetic coupling rodless guide cylinder and is linked with the magnetic coupling rodless guide cylinder; the rotary air cylinder is arranged on the thin guide air cylinder; the rotary supporting plate is connected to the rotary air cylinder and is driven by the rotary air cylinder to rotate; the rotary supporting plate can support the material tray and place the material tray on the AGV trolley.

The processing method of the intelligent manufacturing assembly line further comprises the following steps: the top of the positioning bracket is provided with a positioning lug, and the side surface of the positioning lug is provided with a guide inclined plane; the material tray is provided with a notch clamped in the positioning bump; one end of the rotary supporting plate is provided with a balancing weight.

The processing method of the intelligent manufacturing assembly line of the invention also comprises the following steps: be equipped with dolly locating support on the AGV dolly, also be equipped with the location lug with the breach joint on the dolly locating support.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the processing method of the intelligent manufacturing assembly line, the raw material taking and the finished product placing are automated, manual intervention is not needed, and the raw material and the finished product can be stored at the same time, so that the utilization rate of a warehouse is high.

2. According to the processing method of the intelligent manufacturing assembly line, automatic grabbing and bearing conveying can be achieved through the mechanical arm, bearing assembling is automatically completed through the bearing assembling unit, the processed workpiece with the bearing is conveyed to the laser marking unit to be marked, the coordination of assembling and marking is good, and positioning is accurate.

3. The processing method of the intelligent manufacturing assembly line can accurately position the material table, so that a mechanical arm can conveniently and accurately grab workpieces on the material table.

[ description of the drawings ]

FIG. 1 is a perspective view of an intelligent manufacturing line of the present invention.

Fig. 2 is a perspective view of the stereoscopic warehouse of fig. 1.

Fig. 3 is a perspective view of the warehouse stacker in fig. 2.

Fig. 4 is a partially enlarged view of a portion a in fig. 2.

Fig. 5 is a perspective view of the bearing assembly and marking unit, robot arm of fig. 1.

Fig. 6 is a partial perspective view of the bearing-mounting unit of fig. 5.

Fig. 7 is a perspective view of the gripper assembly on the robot arm of fig. 5.

Fig. 8 is a front view of fig. 7.

Fig. 9 is a perspective view of the rotary relay station of fig. 1.

Fig. 10 is a front view of fig. 9.

Fig. 11 is a perspective view of the positioning bracket of fig. 9.

Fig. 12 is a schematic view of the structure of the material tray of fig. 10.

[ detailed description ] embodiments

Referring to the attached drawings 1 to 12 in the specification, the invention relates to an intelligent manufacturing assembly line, which comprises a stereoscopic warehouse 1, a machining center 2, an optical inspection unit 3, a bearing assembling and marking unit 4, a mechanical arm 5, a rotary transfer conversion table 6, an AGV trolley 7 and the like.

The stereoscopic warehouse 1, the machining center 2, the optical inspection unit 3 and the bearing assembling and marking unit 4 are sequentially arranged to form a closed-loop production line. The machining center 2, the optical inspection unit 3, the bearing assembling and marking unit 4 are all provided with a mechanical arm 5 and a rotary transfer table 6. The AGV trolley 7 is in butt joint with the stereoscopic warehouse 1 and the rotary transfer table 6 and can walk among the stereoscopic warehouse 1, the machining center 2, the optical inspection unit 3, the bearing assembly and marking unit 4. The machining center 2, the optical inspection unit 3 and the marking unit are all in the prior art, and therefore, the description is omitted here.

Specifically, the stereoscopic warehouse 1 is composed of a raw material warehouse 11, a finished product warehouse 12, a warehouse stacker 13, and the like. The raw material warehouse 11 and the finished product warehouse 12 are oppositely arranged, and the raw material warehouse 11 is used for storing raw materials; the finished goods warehouse 12 is used for storing finished goods. In the present embodiment, the raw material warehouse 11 and the finished product warehouse 12 have the same structure, and each of the raw material warehouse and the finished product warehouse includes a plurality of columns 14, and a plurality of layers of material trays 8 are disposed between adjacent columns 14.

The warehouse stacker 13 is installed between the raw material warehouse 11 and the finished product warehouse 12, and can acquire raw materials in the raw material warehouse 11 or put finished products into the finished product warehouse 2. The warehouse stacker 13 is composed of a ground rail 131, a guide rail 132, a slider seat 133, a speed reducing motor 134, a lifting guide rail seat 135, a screw rod 136, a lifting seat 137, a tray bracket 138, a screw rod motor 139 and the like. Wherein the ground rail 131 is laid between the raw material warehouse 11 and the finished product warehouse 12 and is arranged along the extending direction of the warehouses. The guide rail 132 is laid on the ground rail 131. The slider holder 133 is engaged with the guide rail 132 and is driven by the reduction motor 134 to move along the guide rail 132. In the present embodiment, a rack 311 is mounted on the ground rail 131; the reduction motor 134 is connected with a driving gear 1341; the driving gear 1341 is engaged with the rack 1311, thereby realizing transmission.

The lifting guide rail seat 135 is vertically installed on the slider seat 133. The screw rod 136 is vertically pivoted on the lifting guide rail seat 135. The lifting seat 137 is limited on the lifting guide rail seat 135, matched with the screw rod 136 and driven by the screw rod 136 to lift. The lead screw motor 139 is connected to and drives the lead screw 136 to rotate.

The tray bracket 138 is installed at one side of the lifting seat 137 and lifted along with the lifting seat 137. The material tray bracket 138 is provided with a servo motor 1381, the servo motor 1381 drives the material tray bracket 138, and the material tray bracket 138 extends into the raw material warehouse 11, the finished product warehouse 12 and the AGV trolley 7.

The design principle of the stereoscopic warehouse 1 is as follows: when raw materials need to be obtained from the raw material warehouse 11, the gear motor 134 drives the driving gear 1341, and the driving gear 1341 rotates along the rack 1311, so as to drive the slider seat 133 to move along the guide rail 132; meanwhile, the screw rod motor 139 on the slider seat 133 drives the screw rod 136 to rotate, the screw rod 136 drives the lifting seat 137 to lift, and the lifting seat 137 drives the tray bracket 138 to lift. After the tray bracket 138 moves to the right position, the servo motor 1381 drives the tray bracket 138 to grab the raw materials in the raw material warehouse 11 through the tray bracket 138; thereafter, the reduction motor 134, the screw motor 139, and the servo motor 1381 are all reset to the initial state. Finally, the servo motor 1381 drives the tray bracket 138 again, so that the tray bracket 138 with the raw material extends above the AGV trolley 7, the raw material falls onto the AGV trolley 7, and the servo motor 1381 resets, thereby completing the taking of the raw material.

When the AGV trolley 7 transports the finished products to one side of the warehouse stacker 13, the tray bracket 138 firstly picks the finished products and then resets. The tray bracket 138 is moved to the storage position of the finished product warehouse 12 by the speed reduction motor 134 and the screw motor 139, and the tray bracket 138 resets after putting the finished product into the finished product warehouse 12. And finally, resetting all motors.

The bearing assembling and marking unit 4 is used for assembling the bearings together and carrying out laser marking. The bearing assembling and marking unit 4 comprises a frame 41, an installation bottom plate 42, a screw rod guide rail linear sliding table 43, a thin cylinder 44, an installation supporting block 45, a workpiece placing plate 46, an upright column 47, a pressing cylinder 48 and the like.

A bearing tray 49 is mounted on the frame 41. The mounting base plate 42 is horizontally fixed on the frame 41. The linear sliding table 43 of the screw guide is mounted on the mounting base plate 42, which is prior art and therefore will not be described herein.

The thin cylinder 44 is connected to the screw guide linear slide table 43 and is driven to move by the screw guide linear slide table 43. The thin cylinder 44 can lift and convey a work placing plate 46.

The mounting support blocks 45 are fixed to the mounting base plate 42, and can support the workpiece placement plate 46.

The upright 47 is vertically mounted on the bottom plate 42, and the top thereof is mounted with an upper beam 471. The down-pressure cylinder 48 is mounted on the upper beam 471, and a bearing head 481 is connected thereto.

The working principle of the bearing assembling and marking unit 4 is as follows: the screw rod guide rail linear sliding table 43 drives the thin cylinder 44, so that the thin cylinder 44 moves to one end of the screw rod guide rail linear sliding table 43, and at the moment, the thin cylinder 44 bears a workpiece placing plate 46;

then, the mechanical arm 5 places the workpiece on the workpiece placing plate 46, and then the mechanical arm 5 picks a bearing on the bearing tray 49 and places the bearing on the bearing hole of the workpiece;

then, the thin cylinder 44 is lifted, the linear sliding table 43 of the screw guide moves, the thin cylinder 44 moves to the position below the bearing pressure head 481, the thin cylinder 44 descends, the workpiece placing plate 46 contacts the mounting support block 45, the bearing is stressed on the mounting support block 45 when being mounted,

the downward-pressing air cylinder 48 is pressed downwards to press the bearing into the bearing hole of the workpiece, the ultrathin air cylinder 44 rises to support the workpiece placing plate 46, and the linear sliding table 43 of the lead screw guide rail is reset; the robot arm 5 picks up the workpiece and moves to the next processing step.

The mechanical arm 5 comprises a clamping jaw device 50, and the clamping jaw device 50 is assembled by a clamping jaw connecting seat 51, a cylinder connecting plate 52, a three-jaw pneumatic finger cylinder 53, a stepped clamping jaw 54, a workpiece elastic pad 55, a spring plunger 56 and the like.

Wherein the clamping jaw connecting base 51 is used for mounting the whole clamping jaw device on the mechanical arm 5. The cylinder connecting plate 52 is installed at both sides of the jaw connecting base 51.

The three-jaw pneumatic finger cylinder 53 is mounted on the cylinder connecting plate 52. The stepped clamping jaw 54 is mounted on the three-jaw pneumatic finger cylinder 53, and is driven by the three-jaw pneumatic finger cylinder 53 to extend and retract the stepped clamping jaw 54 to clamp or release a workpiece.

In the present embodiment, the distance between the stepped clamping jaw 54 and the central axis is 78 ± 8mm and 45 ± 8mm, so that workpieces with multiple sizes in the ranges of 86-70 and 53-37 can be grabbed, and the function of using multiple workpieces by one clamping jaw can be realized.

The workpiece elastic pad 55 is connected with the three-jaw pneumatic finger cylinder 53 through an auxiliary connecting block 551 and a bolt spring 552. Specifically, the workpiece resilient pad 55 is Y-shaped and is located between the stepped jaws 54. One end of the auxiliary connecting block 551 is fixed on the three-jaw pneumatic finger cylinder 53; one end of the bolt spring 552 is connected to the auxiliary connecting block 551, and the other end is connected to the workpiece elastic pad 55, so that the workpiece elastic pad 55 can elastically abut against the workpiece. When the clamping jaw device is used for placing a workpiece on the equipment, the stepped clamping jaw 54 is pressed against the workpiece through the workpiece elastic pad 55 under the condition that the workpiece is loosened, so that the workpiece can be placed on the equipment more accurately.

The spring plunger 56 is mounted on the stepped jaw 54, which can abut against the workpiece. Specifically, the stepped clamping jaw 54 comprises a clamping cushion block 57, the clamping cushion block 57 is fixed to the stepped clamping jaw 54 through a bolt, and different materials and different sizes of workpieces need to be replaced, so that the clamping cushion block is convenient to replace.

Further, the spring plunger 56 is mounted on the clamp pad 57. When the clamping jaw 54 is clamping the workpiece, the spring plunger 56 is pressed against a plane of the workpiece, so that the position of the workpiece is more accurate when the workpiece is grabbed.

The rotary transfer table 6 is used for conveying workpieces to an AGV trolley 7 and comprises a base 61, an installation table 62, a positioning bracket 63, a magnetic coupling rodless guide cylinder 64, a thin guide cylinder 65, a rotary cylinder 66, a rotary supporting plate 67 and the like.

Wherein the base 61 is horizontally installed on the ground. The mount 62 is fixed to one end of the base 61.

The positioning brackets 63 are installed at both sides of the top of the installation table 62, and support the material tray 8 taken out of the stereoscopic warehouse 1 thereon. The top of the positioning bracket 63 is provided with a positioning projection 631, and the side of the positioning projection 631 is provided with a guiding inclined plane 632. The material tray 8 is provided with a notch 81 clamped in the positioning projection 631. In this embodiment, the guiding inclined plane 632 is provided with three sides, which can abut against the notch 81, so that the material tray 8 can be accurately placed into the positioning point when a position deviation occurs when being put down, and thus the material tray 8 and a workpiece thereon are accurately positioned, and a mechanical arm can conveniently and accurately grab the workpiece on the material table.

The magnetically coupled rodless guide cylinder 64 is mounted on the base 61 and located on one side of the mounting table 2, and is capable of moving back and forth in a direction toward the mounting table 62 or away from the mounting table 62. The thin guide cylinder 65 is supported on the magnetic coupling rodless guide cylinder 64 and is linked with the magnetic coupling rodless guide cylinder 64. The thin guide cylinder 65 can move up and down.

The rotary cylinder 66 is mounted on the thin guide cylinder 65. The rotary support plate 67 is connected to the rotary cylinder 66 and is driven to rotate by the rotary cylinder 66. A weight block 671 is mounted at one end of the rotating support plate 67. So that the balance of the rotating blade 67 is good.

The rotating support plate 67 can support the material tray 8, place the material tray 8 on the AGV trolley 7, and transport the workpiece to the next machining process through the AGV trolley 7. Further, a trolley positioning support 71 is also arranged on the AGV trolley 7, and a positioning lug 72 clamped with the notch 61 is also arranged on the trolley positioning support 71, so that the material tray 8 can also be accurately positioned on the AGV trolley 7.

The working principle of the rotary transfer table is as follows:

1. the thin guide cylinder 65 is lowered, and the magnetic coupling rodless guide cylinder 64 moves to the left side of the base 61;

2, the AGV trolley 7 arrives at a designated place;

3. the magnetic coupling rodless guide cylinder 64 moves to the rightmost side, the thin guide cylinder 65 rises, the rotary supporting plate 67 is lifted and supports the material tray 8, and the magnetic coupling rodless guide cylinder 64 moves to the leftmost side; the thin guide cylinder 65 descends, the material tray 8 is placed on the positioning support 63 of the transfer table, and the mechanical arm accurately grabs the workpiece and places the workpiece in the material tray 8;

4. the thin guide cylinder 65 rises, the rotary cylinder 66 rotates 180 degrees, the material tray 68 is rotated to the right side, the magnetic coupling rodless guide cylinder 64 moves to the rightmost side, the thin guide cylinder 65 descends, the material tray 8 is placed on the positioning support 71 of the AGV trolley 7, a workpiece is conveyed to the next machining process through the AGV trolley 7, and meanwhile, all the cylinders reset.

The processing method of the intelligent manufacturing assembly line comprises the following specific processing steps:

1) placing the raw blank material into a raw material warehouse 11;

2) the stacker 13 takes materials from a raw material warehouse 11 with a specified warehouse number and outputs the materials to the AGV trolley 7, the AGV trolley 7 lifts the material trays 8 by 50mm and then conveys the materials to a station of the machining center 2, the AGV trolley 7 descends the material trays 8 by 50mm, and the material trays 8 are placed on the rotary transfer conversion table 6;

3) the mechanical arm 5 at the station of the machining center 2 grabs the raw materials on the rotary transfer conversion table 6, and clamps the raw materials to the machining center 2 for machining;

4) the mechanical arm 5 of the station of the machining center 2 grabs the machined workpiece and places the workpiece on the rotary transfer table 6, the rotary transfer table 6 sends the workpiece to the AGV trolley 7, the AGV trolley 7 is jacked by 50mm, and the material tray 8 is conveyed to the optical inspection unit 4;

5) when the AGV trolley 7 reaches the station of the optical inspection unit 4, the trolley 7 lowers the material tray 8 by 50mm, and the material tray 8 is placed on the rotary transfer conversion table 6 of the station of the optical inspection unit 4;

6) the mechanical arm 5 of the station of the optical inspection unit 4 grabs the workpiece on the centering rotary table 6 to the optical inspection unit 4 for optical projection detection;

7) after detection, the mechanical arm 5 grabs the workpiece, the workpiece is placed on a material tray 8 of the transfer table 6, then the AGV trolley 7 is jacked by 50mm, and the material tray 8 is jacked to be transferred to a working station of the bearing assembling and marking unit 4;

8) after the position of the rotary transfer converting table 6 of the working station of the bearing assembling and marking unit 4 is reached, the AGV trolley 7 descends the material tray 8 by 50mm, and the material tray 8 is placed on the rotary transfer converting table 6;

9) the mechanical arm 5 grabs the workpiece and places the workpiece on the workpiece placing plate 46, then snatchs the bearing in the bearing tray 49 and places the bearing on the workpiece, moves the linear sliding table 43 of lead screw guide rail to the assigned position and carries out bearing press mounting on the workpiece, snatchs the workpiece after the completion and moves to the marking machine department and mark, snatchs the workpiece by the mechanical arm 5 of website after the marking is accomplished and places the transfer platform 6, then the AGV dolly 7 jacking 50mm, the jack-up charging tray 8 is transported to the finished product warehouse 12

10) After being transferred to the finished product warehouse 12, the finished product warehouse 12 with the designated warehouse number is moved by the stacker 13 to be warehoused. The AGV cart 7 then returns to the point of the raw material warehouse 11 to wait.

The above embodiments are merely preferred embodiments of the present disclosure, which are not intended to limit the present disclosure, and any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present disclosure, should be included in the scope of the present disclosure.