Automatic machining device and machining method for diesel generator machining

Abstract

The invention discloses an automatic processing device for diesel generator processing and a processing method, an intermittent rotating seat is rotatably mounted above a base, a composition jig is placed above the intermittent rotating seat, the composition jig is located between an inner supporting plate and an outer pressing plate, a plurality of stator cores are placed above the composition jig in an overlapping manner, and the stator cores are located between the inner supporting plate and the outer pressing plate. The inner side and the outer side of the stator core abut against the inner supporting plate and the outer pressing plate correspondingly, a lifting base is rotationally installed at the bottom end of a push rod of the hydraulic cylinder, a pressure maintaining plate is arranged below the lifting base, and two welding mechanisms are arranged on the upper portion of the base in a bilateral symmetry mode. The intermittent rotating seat is provided with the pressure maintaining mechanism, the stator iron core is stacked between the inner supporting plate and the outer pressing plate in the pressure maintaining mechanism, the stator iron core can be supported and positioned, the welding precision is improved, the inner supporting plate and the outer pressing plate can be far away from each other, the built-in space is large, and the stator iron core can be conveniently placed and taken out.

Description

Technical Field

[0001] The present invention relates to the technical field of diesel generator processing, and in particular to an automatic processing device and a processing method for diesel generator processing. Background Art

[0002] The diesel generator relies on the fuel system to provide fuel to make the piston move, which in turn makes the crank rotate at high speed. The rotating crank will cause the rotor to rotate, and the rotor cuts the magnetic field generated by the excitation coil to generate three-phase alternating current. The rotor of the diesel generator includes several parts such as the stator core, permanent magnets and the rotating shaft. The rotor includes multiple structures, one of which is a stator core composed of multiple silicon steel sheets stacked and welded.

[0003] When welding the current stator core, a mold for stacking the stator core is generally set. The mold is usually a cylindrical barrel with a notch for welding. The stator core is placed inside the barrel. This structure can ensure that multiple stator cores overlap. Affected by the external barrel, in order to ensure the accuracy of the overlap of the stator core and maintain pressure, the outer wall of the stator core needs to fit closely with the inner wall of the barrel and have a certain pressure, which makes it difficult to remove the internal stator core after welding. To this end, we designed an automatic processing device and processing method for diesel generator processing. Summary of the invention

[0004] The present invention proposes an automatic processing device and a processing method for diesel generator processing, which solves the problem that in order to ensure the accuracy of the overlap of the stator core and the pressure maintenance, the outer wall of the stator core needs to be tightly fitted with the inner wall of the cylinder and have a certain pressure, which makes it difficult to remove the internal stator core after welding.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An automatic processing device for processing a diesel generator comprises a base, a conveyor belt for conveying workpieces and a loading device for grabbing and placing the workpieces are arranged on the front side of the base;

[0007] An intermittent rotating seat is rotatably installed above the base, and a pressure-maintaining mechanism is arranged on the intermittent rotating seat, wherein the pressure-maintaining mechanism comprises a plurality of inner support plates and an outer pressure plate distributed in an annular shape, and the outer pressure plate is arranged outside the inner support plate and the two move synchronously, and a component jig is placed above the intermittent rotating seat, and the component jig is located between the inner support plate and the outer pressure plate, and a plurality of stator cores are stacked and placed above the component jig, and the inner and outer sides of the stator core are respectively in contact with the inner support plate and the outer pressure plate;

[0008] A top frame is installed above the base through a support rod, a hydraulic cylinder is installed above the top frame, a lifting seat is rotatably installed at the bottom end of the push rod of the hydraulic cylinder, a pressure-maintaining plate is arranged below the lifting seat, the structure of the pressure-maintaining plate is completely consistent with the structure of the stator core, and the two have the same size, the pressure-maintaining plate can completely overlap and press on the top of the stator core, an abutment mechanism is arranged on the lifting seat, and the abutment mechanism and the pressure-maintaining plate are both located directly above the pressure-maintaining mechanism;

[0009] Two groups of welding mechanisms are symmetrically arranged above the base.

[0010] Furthermore, the welding mechanism includes a lifting module vertically installed above the base, an L-shaped frame is installed on the slider of the lifting module, a laser welding head is installed on the L-shaped frame, and the laser welding head is connected to an external laser welding machine and can be used to weld the stator core.

[0011] Furthermore, the assembly jig includes a placement plate of an annular structure, and a plurality of assembly frames distributed in an annular shape are welded on the inner side of the placement plate. The stator core is stacked and located above the placement plate, and the plurality of assembly frames are respectively inserted into the inner slots of the stator core. The inner side of the stator core is provided with slots for winding. During assembly and welding, it is directly placed above the placement plate through the slots, and the positions of the plurality of stator cores can be aligned.

[0012] Furthermore, the base is provided with a circular opening through the upper and lower parts, a support track is installed above the circular opening, a track slider distributed in a circumferential array is slidably provided on the support track, the intermittent swivel seat is placed above the support track and connected to the track slider, the intermittent swivel seat does not directly contact the upper surface of the support track, the resistance between the two is reduced, and the rotation of the intermittent swivel seat is facilitated;

[0013] An active gear ring is arranged below the intermittent swivel seat, an intermittent motor is installed below the base through a bracket, a driving gear is installed on the output shaft of the intermittent motor, the driving gear is meshed with the active gear ring, and the intermittent motor rotates the active gear ring through the active gear, thereby rotating the intermittent swivel seat, and the angle of rotation of the intermittent swivel seat is fixed each time, and the rotation angle in the device is 60 degrees.

[0014] Furthermore, the upper end of the intermittent rotating seat is provided with a plurality of guide slide grooves distributed in a circumferential array, a synchronous shaft is rotatably installed in the guide slide groove, a screw seat 1 and a screw seat 2 are respectively installed at the lower ends of the inner support plate and the outer pressure plate, the screw seat 1 and the screw seat 2 are both connected to the synchronous shaft, the movement directions of the inner support plate and the outer pressure plate are opposite, the inner support plate will move outward under the action of the jacking shaft, and then the outer pressure plate will move inward synchronously through the synchronous shaft, and then synchronously contact with the inner and outer rings of the stator core;

[0015] An opening is formed by passing through the center of the intermittent swivel seat from top to bottom, and a lifting shaft is provided in the opening for sliding up and down. A plurality of driving bias rods distributed in an annular shape are rotatably installed above the outer ring of the lifting shaft through axle pins, and the other end of the driving bias rod is rotatably connected to the inner side of the inner support plate through axle pins. A strip groove is provided on the inner wall of the opening, and a strip block is provided on the outer ring of the lifting shaft. The strip block is slidably placed in the strip groove to guide it. The up and down movement of the lifting shaft can make the inner support plate move inward or outward along the guide groove through the driving bias rod. The inner support plate moving outward can position and maintain the stator core, thereby improving the welding accuracy and facilitating the subsequent removal.

[0016] A lifting cylinder is installed at the lower end of the intermittent swivel seat through a bracket. The top end of the push rod of the lifting cylinder is rotatably connected to the bottom end of the lifting shaft through a connecting bearing. The push rod of the lifting cylinder is connected to the outer ring of the connecting bearing, and the lower end of the lifting shaft is connected to the inner ring of the connecting bearing. The lifting shaft can move up and down, and it can also rotate synchronously with the intermittent swivel seat, and the lifting cylinder will not rotate therewith, which will not cause entanglement of the lifting cylinder pipeline and line.

[0017] The synchronous shaft includes two sets of ball screws, and the spiral grooves on the two sets of ball screws rotate in opposite directions. The screw seat 1 and screw seat 2 are nut seats corresponding to the two sets of ball screws. The inner support plate can make the two sets of ball screws rotate during the inward movement. Since the two ball screws of the same set of synchronous shafts have opposite spiral directions, the screw seat 2 moves in the opposite direction to the screw seat 1, thereby making the outer pressure plate and the inner support plate move synchronously and in opposite directions.

[0018] The protruding portion of the inner side of the outer pressure plate forms a protrusion, the bottom end of the protrusion is flush with the upper surface of the placement plate, and the protrusion is used to be placed above the placement plate, and it can contact and maintain pressure with the outer ring of the stator core.

[0019] Further, the abutment mechanism includes three groups of reset members arranged in an annular shape above the lifting seat, the lifting plate is slidably sleeved on the three groups of reset members up and down, the inner ring of the lower end of the lifting plate is provided with multiple groups of driving plates distributed in an annular shape, and the outer ring of the lower end is also provided with multiple groups of abutment plates distributed in an annular shape, and a pressure plate is slidably provided on the inner side of each group of abutment plates;

[0020] The upper end of the pressure plate is thickened outward to form an inclined pressure portion, and the lower end of the pressure plate is bent inward to form an abutting inclined surface. The outward side of the inclined pressure portion is in sliding contact with the abutting inclined surface. The lifting plate can be deflected upward by a certain displacement under the action of the inner support plate, thereby causing the abutting plate to move upward. The abutting plate moving upward will squeeze the inclined pressure portion through the abutting inclined surface, thereby causing the pressure plate to move inward accordingly, and can squeeze the upper side of the outer pressure plate, so that the upper and lower sides of the outer pressure plate are subjected to force at the same time, making the force more uniform.

[0021] The lower part of the abutting inclined surface of the abutting plate is bent to form a horizontal part, and the horizontal part contacts the upper part of the lifting seat to limit the downward movement height thereof.

[0022] Furthermore, the lifting seat is provided with a plurality of groups of moving holes 1 and moving holes 2 distributed in an annular manner, the plurality of pressure plates are respectively slid up and down and placed in the plurality of moving holes 1, the plurality of driving plates are respectively slid up and down and placed in the plurality of moving holes 2, and the width of the pressure plate is smaller than the width of the moving hole 1, the width of the driving plate is smaller than the width of the moving hole 2, and the pressure plate and the driving plate can move correspondingly in the moving hole 1 and the moving hole 2;

[0023] The lifting seat is provided with a plurality of guide grooves distributed in an annular shape, the guide grooves are connected with the moving hole, a guide block is slidably arranged in the guide groove, the guide block is connected with the inner side of the pressure plate, and can guide the pressure plate so that the pressure plate can only move left and right but not up and down, thereby facilitating the movement of the outer pressure plate below;

[0024] The reset member includes three guide rods fixed above the lifting seat in an annular distribution, the lifting plate is sleeved on the three guide rods, nuts are threadedly connected above the guide rods, and a downward spring is also sleeved on the guide rods, and the upper and lower ends of the downward spring are respectively abutted between the nuts and the lifting plate, which is convenient for the installation of the lifting plate, and the downward spring has a downward force on the lifting plate, so that the lifting plate can move downward without being affected by other forces, which is convenient for the subsequent contact and connection with the outer pressure plate and the inner support plate.

[0025] Furthermore, a driving groove is provided at the top of the outer pressure plate, and the shape and size of the driving groove match the shape and form of the pressure plate. The pressure plate can be inserted into the driving groove, so that the pressure plate and the outer pressure plate are connected as one. The inward movement of the pressure plate can exert a force on the upper part of the outer pressure plate, so that the force on the upper and lower ends of the outer pressure plate is more uniform, which is convenient for pressing and maintaining the outer ring of the stator core;

[0026] A driving member is provided at the top of the inner support plate, and a driving surface inclined outward is provided at the top of the driving member, and a driving inclined surface inclined inward is provided at the lower end of the driving plate. When the pressure maintaining plate is squeezed against the upper part of the stator core, the driving surface at the top of the driving member contacts the driving inclined surface below the driving plate. When the inner support plate moves outward, the driving surface pushes the driving inclined surface to deflect upward, thereby causing the abutment mechanism to move, and the outer pressure plate abuts against the upper part of the outer pressure plate, so that the force on the upper and lower ends of the outer pressure plate is more uniform.

[0027] Furthermore, a connecting sleeve is arranged above the lifting seat, and the inner ring of the connecting sleeve is provided with three groups of evenly distributed circular grooves, a positioning column is slidably arranged in the circular groove, a positioning spring is abutted between the positioning column and the circular groove, a circular shaft is arranged at the lower end of the push rod of the hydraulic cylinder, and a plurality of groups of evenly distributed arc grooves are arranged on the outer ring of the circular shaft, the positioning column abuts against the arc groove, the head of the positioning column is a hemispherical structure, and there is a certain resistance between the extrusion of the positioning column and the circular shaft, and the lifting seat can rotate only under a certain degree of external force, thereby improving stability;

[0028] The lifting plate is penetrated up and down to form a through-interface, and the lifting plate is sleeved on the circular shaft through the through-interface.

[0029] A processing method of an automatic processing device for processing a diesel generator, comprising the following steps:

[0030] S1. Multiple stator cores are superimposed on a component jig under the action of a grabbing device, and the component jig is placed on a conveyor belt by the grabbing device and moved to the front of the base;

[0031] The feeding device grabs the assembly jig and places it above the intermittent rotating seat, and the assembly jig is placed in the pressure holding mechanism;

[0032] S2, the pressure-maintaining mechanism is driven for the first time to contact and position the stator core;

[0033] S4, the hydraulic cylinder push rod moves downward to make the lifting seat move downward, and the pressure-maintaining plate applies pressure to the stator core and maintains the pressure;

[0034] The push rod of the lifting cylinder continues to extend upward, and the inner support plate and the outer pressure plate press the stator core inside and outside to maintain pressure;

[0035] S6. Two sets of welding mechanisms weld the side of the stator core. After welding two sets of welds, the turntable rotates 60 degrees intermittently to weld again. After welding three times, the lifting seat moves up, the inner support plate and the outer pressure plate move away from the stator core synchronously, and the loading equipment grabs the stator core after welding and removes it. Then replace it with a new stator core and repeat the above welding operation.

[0036] Beneficial effects of the present invention:

[0037] 1. An intermittent rotating seat is arranged above the base, and a pressure-maintaining mechanism is arranged on the intermittent rotating seat. The stator core is stacked and placed between the inner support plate and the outer pressure plate in the pressure-maintaining mechanism, which can support and position the stator core, ensure that multiple stator cores can be completely overlapped, improve welding accuracy, and the inner support plate and the outer pressure plate can also be kept away from each other, so that the built-in space is larger, which is convenient for placing and removing the stator core;

[0038] 2. By arranging lifting seats above and below the base, and a pressure-maintaining plate under the lifting seats, in conjunction with the abutment mechanism, when the inner support plate and the outer pressure plate are synchronously close to the inner and outer rings of the stator core, the abutment mechanism can apply pressure to the outer pressure plate, so that the force on the entire outer pressure plate is more uniform. The inner support plate, the outer pressure plate and the pressure-maintaining plate can compress and maintain the stator core in multiple directions, so that multiple stator cores are connected more closely, and the size deformation after welding is guaranteed to be small, thereby improving the accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a schematic diagram of the overall structure of an automatic processing device for processing a diesel generator proposed by the present invention;

[0040] Figure 2 for Figure 1 Schematic diagram of the structure of the stator core and the component jig;

[0041] Figure 3 for Figure 2 Schematic diagram of the structure of the fixture;

[0042] Figure 4 for Figure 1 Schematic diagram of the bottom structure of the mid-intermittent transposition;

[0043] Figure 5 for Figure 1 Structural schematic diagram of the intermediate intermittent transfer and pressure-maintaining mechanism;

[0044] Figure 6 for Figure 4 A cross-sectional view of

[0045] Figure 7 for Figure 1 Exploded diagram of the abutment mechanism;

[0046] Figure 8 for Figure 1 A cross-sectional view of the abutment structure;

[0047] Fig. 9 for Figure 7 A structural diagram in which no lifting plate is provided;

[0048] Fig.10 for Figure 8 The enlarged schematic diagram at A in the middle;

[0049] Fig.11 A cross-sectional view of the outer pressure plate.

[0050] Numbers in the figure: 1, conveyor belt; 2, stator core; 21, assembly fixture; 211, placement plate; 212, assembly frame; 3, base; 31, top frame; 4, intermittent swivel seat; 401, guide slide; 41, support track; 42, active gear ring; 43, intermittent motor; 44, active gear; 45, track slider; 5, pressure-maintaining mechanism; 51, lifting cylinder; 52, lifting shaft; 521, connecting bearing; 53, inner support plate; 531, driving member; 532, driving surface; 533, driving deflection rod; 534, screw seat one; 54, outer pressure plate; 541, driving groove; 542, screw seat two; 54 3. Synchronous shaft; 6. Welding mechanism; 61. Lifting module; 62. L-shaped frame; 63. Laser welding head; 7. Lifting seat; 701. Moving hole one; 702. Moving hole two; 703. Guide groove; 71. Pressure holding plate; 72. Connecting sleeve; 721. Positioning column; 722. Positioning spring; 8. Abutment mechanism; 81. Lifting plate; 82. Through-interface; 83. Pressure plate; 831. Guide block; 832. Oblique pressure part; 84. Reset member; 841. Guide rod; 842. Downward spring; 85. Drive plate; 851. Drive inclined surface; 86. Abutment plate; 861. Abutment inclined surface; 9. Hydraulic cylinder. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0052] Reference Figure 1-11 , an automatic processing device for diesel generator processing, comprising a base 3, a conveyor belt 1 for conveying workpieces and a loading device for grabbing and placing workpieces are arranged on the front side of the base 3;

[0053] An intermittent rotating seat 4 is rotatably installed above the base 3, and a pressure-maintaining mechanism 5 is arranged on the intermittent rotating seat 4, wherein the pressure-maintaining mechanism 5 includes a plurality of inner support plates 53 and an outer pressure plate 54 distributed in an annular shape, and the outer pressure plate 54 is arranged outside the inner support plate 53 and the two move synchronously, and a component fixture 21 is placed above the intermittent rotating seat 4, and the component fixture 21 is located between the inner support plate 53 and the outer pressure plate 54, and a plurality of stator cores 2 are stacked and placed above the component fixture 21, and the inner and outer sides of the stator core 2 are respectively abutted against the inner support plate 53 and the outer pressure plate 54;

[0054] A top frame 31 is installed above the base 3 through a support rod, a hydraulic cylinder 9 is installed above the top frame 31, a lifting seat 7 is rotatably installed at the bottom end of the push rod of the hydraulic cylinder 9, a pressure-maintaining plate 71 is arranged below the lifting seat 7, the structure of the pressure-maintaining plate 71 is completely consistent with the structure of the stator core 2, and the two have the same size, the pressure-maintaining plate 71 can completely overlap and press on the top of the stator core 2, an abutment mechanism 8 is arranged on the lifting seat 7, and the abutment mechanism 8 and the pressure-maintaining plate 71 are both located directly above the pressure-maintaining mechanism 5;

[0055] Two sets of welding mechanisms 6 are symmetrically arranged above the base 3 .

[0056] The welding mechanism 6 includes a lifting module 61 vertically installed above the base 3, an L-shaped frame 62 is installed on the slider of the lifting module 61, and a laser welding head 63 is installed on the L-shaped frame 62. The laser welding head 63 is connected to an external laser welding machine and can be used to weld the stator core 2.

[0057] The assembly jig 21 includes a placement plate 212 of an annular structure, and a plurality of assembly frames 222 distributed in an annular shape are welded on the inner side above the placement plate 212. The stator core 2 is stacked and located above the placement plate 212, and the plurality of assembly frames 222 are respectively inserted into the inner slots of the stator core 2. The inner side of the stator core 2 is provided with slots for winding. During assembly and welding, it is directly placed above the placement plate 212 through the slots, and the positions of the plurality of stator cores 2 can be aligned.

[0058] The base 3 is provided with a circular opening from top to bottom, a support track 41 is installed above the circular opening, and a track slider 45 distributed in a circumferential array is slidably provided on the support track 41. The intermittent rotating seat 4 is placed above the support track 41 and connected to the track slider 45. The intermittent rotating seat 4 does not directly contact the upper surface of the support track 41, thereby reducing the resistance between the two and facilitating the rotation of the intermittent rotating seat 4.

[0059] A driving gear ring 42 is arranged below the intermittent rotating seat 4, and an intermittent motor 43 is installed below the base 3 through a bracket. A driving gear 44 is installed on the output shaft of the intermittent motor 43, and the driving gear 44 is meshed with the driving gear ring 42. The intermittent motor 43 rotates the driving gear ring 42 through the driving gear 44, thereby rotating the intermittent rotating seat 4, and the angle of rotation of the intermittent rotating seat 4 is fixed each time, and the rotation angle in this device is 60 degrees.

[0060] The upper end of the intermittent rotating seat 4 is provided with a plurality of guide grooves 401 distributed in a circumferential array, a synchronous shaft 543 is rotatably installed in the guide groove 401, a screw seat 1 534 and a screw seat 2 542 are respectively installed at the lower ends of the inner support plate 53 and the outer pressure plate 54, the screw seat 1 534 and the screw seat 2 542 are both connected to the synchronous shaft 543, the inner support plate 53 and the outer pressure plate 54 move in opposite directions, the inner support plate 53 will move outward under the action of the lifting shaft 52, and then the outer pressure plate 54 will move inward synchronously through the synchronous shaft 543, and then synchronously contact with the inner and outer rings of the stator core 2;

[0061] An opening is formed by passing through the center of the intermittent rotating seat 4, and a lifting shaft 52 is slidably arranged in the opening. A plurality of groups of driving bias rods 533 distributed in an annular shape are rotatably installed above the outer ring of the lifting shaft 52 through axle pins. The other end of the driving bias rod 533 is rotatably connected to the inner side of the inner support plate 53 through axle pins. A strip groove is arranged on the inner wall of the opening, and a strip block is arranged on the outer ring of the lifting shaft 52. The strip block is slidably placed in the strip groove to guide it. The up and down movement of the lifting shaft 52 can make the inner support plate 53 move inward or outward along the guide slide groove 401 through the driving bias rod 533. The inner support plate 53 moving outward can position and maintain the stator core 2, thereby improving the welding accuracy and facilitating the subsequent removal.

[0062] A lifting cylinder 51 is installed at the lower end of the intermittent rotating seat 4 through a bracket. The top end of the push rod of the lifting cylinder 51 is rotatably connected to the bottom end of the lifting shaft 52 through a connecting bearing 521. The push rod of the lifting cylinder 51 is connected to the outer ring of the connecting bearing 521, and the lower end of the lifting shaft 52 is connected to the inner ring of the connecting bearing 521. The lifting shaft 52 can move up and down, and it can also rotate synchronously with the intermittent rotating seat 4, and the lifting cylinder 51 will not rotate therewith, and will not cause the lifting cylinder 51 pipeline and line entanglement;

[0063] The synchronous shaft 543 includes two sets of ball screws, and the spiral grooves on the two sets of ball screws rotate in opposite directions. The screw seat 1 534 and the screw seat 2 542 are nut seats corresponding to the two sets of ball screws. The inner support plate 53 can make the two sets of ball screws rotate during the inward movement. Since the two ball screws of the same set of synchronous shaft 543 have opposite spiral directions, the screw seat 2 542 moves in the opposite direction to the screw seat 1 534, thereby making the outer pressure plate 54 and the inner support plate 53 move synchronously and in opposite directions.

[0064] The protruding portion of the inner side of the outer pressure plate 54 forms a protrusion, and the bottom end of the protrusion is flush with the upper surface of the placement plate 212, which can contact with the outer ring of the stator core 2 to maintain pressure.

[0065] The abutment mechanism 8 includes three groups of reset members 84 arranged in an annular shape above the lifting seat 7. The lifting plate 81 is slidably sleeved on the three groups of reset members 84. The inner circle of the lower end of the lifting plate 81 is provided with multiple groups of driving plates 85 arranged in an annular shape, and the outer circle of the lower end is also provided with multiple groups of abutment plates 86 arranged in an annular shape. The inner side of each group of abutment plates 86 is slidably provided with a pressure plate 83.

[0066] The upper end of the pressure plate 83 is thickened on the outward side to form an oblique pressure portion 832, and the lower end of the pressure plate 83 is bent inward to form an abutting inclined surface 861. The outward side of the oblique pressure portion 832 is in sliding contact with the abutting inclined surface 861. The lifting plate 81 can be displaced upward by a certain displacement under the action of the inner support plate 53, thereby causing the abutting plate 86 to move upward. The abutting plate 86 moving upward will squeeze the oblique pressure portion 832 through the abutting inclined surface 861, thereby causing the pressure plate 83 to move inward accordingly, and can squeeze the upper side of the outer pressure plate 54, so that the upper and lower sides of the outer pressure plate 54 are subjected to force at the same time, making the force more uniform.

[0067] The lower part of the abutting inclined surface 861 of the abutting plate 86 is bent to form a horizontal part, and the horizontal part contacts the upper part of the lifting seat 7 to limit the downward movement height thereof.

[0068] The lifting seat 7 is provided with a plurality of groups of moving holes 1 701 and moving holes 2 702 distributed in an annular manner. The plurality of pressure plates 83 are respectively slid up and down and placed in the plurality of moving holes 1 701. The plurality of driving plates 85 are respectively slid up and down and placed in the plurality of moving holes 2 702. The width of the pressure plate 83 is smaller than the width of the moving hole 1 701. The width of the driving plate 85 is smaller than the width of the moving hole 2 702. The pressure plate 83 and the driving plate 85 can move correspondingly in the moving hole 1 701 and the moving hole 2 702.

[0069] The lifting seat 7 is provided with a plurality of guide grooves 703 distributed in an annular shape, the guide grooves 703 are connected with the moving hole 1 701, a guide block 831 is slidably arranged in the guide grooves 703, the guide block 831 is connected with the inner side of the pressure plate 83, and can guide the pressure plate 83, so that the pressure plate 83 can only move left and right, and cannot move up and down, thereby facilitating the movement of the outer pressure plate 54 below;

[0070] The reset member 84 includes three guide rods 841 distributed in a ring shape and fixed above the lifting seat 7. The lifting plate 81 is sleeved on the three guide rods 841. Nuts are threadedly connected above the guide rods 841, and a downward spring 842 is also sleeved on the guide rods 841. The upper and lower ends of the downward spring 842 are respectively abutted between the nuts and the lifting plate 81, which is convenient for the installation of the lifting plate 81. The downward spring 842 has a downward force on the lifting plate 81, so that the lifting plate 81 can move downward without being affected by other forces, which is convenient for the subsequent contact and connection with the outer pressure plate 54 and the inner support plate 53.

[0071] A driving groove 541 is provided at the top of the outer pressure plate 54. The shape and size of the driving groove 541 match the shape and form of the pressure plate 83. The pressure plate 83 can be inserted into the driving groove 541, so that the pressure plate 83 and the outer pressure plate 54 are connected as a whole. The inward movement of the pressure plate 83 can exert a force on the upper part of the outer pressure plate 54, so that the force on the upper and lower ends of the outer pressure plate 54 is more uniform, which is convenient for pressing and maintaining the outer ring of the stator core 2;

[0072] A driving member 531 is provided at the top of the inner support plate 53, and a driving surface 532 inclined outward is provided at the top of the driving member 531. A driving inclined surface 851 inclined inward is provided at the lower end of the driving plate 85. When the pressure maintaining plate 71 is squeezed against the top of the stator core 2, the driving surface 532 at the top of the driving member 531 contacts the driving inclined surface 851 below the driving plate 85. When the inner support plate 53 moves outward, the driving surface 532 pushes the driving inclined surface 851 to deflect upward, thereby causing the abutment mechanism 8 to move, and the outer pressure plate 54 abuts against the top of the outer pressure plate 54, so that the force on the upper and lower ends of the outer pressure plate 54 is more uniform.

[0073] A connecting sleeve 72 is arranged above the lifting seat 7, and the inner ring of the connecting sleeve 72 is provided with three groups of evenly distributed circular grooves, and a positioning column 721 is slidably arranged in the circular groove, and a positioning spring 722 is abutted between the positioning column 721 and the circular groove. A circular shaft is arranged at the lower end of the push rod of the hydraulic cylinder 9, and a plurality of groups of evenly distributed arc grooves are arranged on the outer ring of the circular shaft, and the positioning column 721 abuts against the arc groove. The head of the positioning column 722 is a hemispherical structure, and there is a certain resistance between the positioning column 721 and the circular shaft. The lifting seat 7 can rotate only under a certain degree of external force, thereby improving stability.

[0074] The lifting plate 81 penetrates up and down to form a through hole 82 , and the lifting plate 81 is sleeved on the circular shaft through the through hole 82 .

[0075] Working principle: In actual use, firstly, a mechanical gripper or other device is used to place multiple stator cores on the assembly jig, and the conveyor belt 1 will move it to the front of the base 3, and then the feeding device grabs the assembly jig 21 and places it on the intermittent rotating seat 4, and the assembly jig 21 is sleeved on the outside of multiple inner support plates 53;

[0076] After that, the push rod of the lifting cylinder 51 moves upward and pushes the lifting shaft 52 to move upward together. During the upward movement of the lifting shaft 52, the multiple inner support plates 53 will push the inner support plates 53 to expand outward under the action of the driving bias rod 533. Since the synchronous shaft 543 includes two sets of ball screws and the spiral grooves on the two sets of ball screws rotate in opposite directions, the inner support plates 53 can make the two sets of ball screws rotate during the inward movement, and the screw seat 2 542 moves in the opposite direction to the screw seat 1 534, so that the outer pressure plate 54 and the inner support plate 53 move synchronously and in opposite directions. The outer pressure plate 54 and the inner support plate 53 will simultaneously approach the stator core 2 and contact its surface, so that the stator core 2 is directly above the intermittent rotating seat 4, and at this time it will be positioned with the stator core 2.

[0077] Then the hydraulic cylinder 9 moves the lifting seat 7 downward, and the lifting seat 7 moves the abutting mechanism 8 and the pressure-maintaining plate 71 downward, and the pressure-maintaining plate 71 will press and maintain the upper part of the stator core 2. At this time, the pressure plate 83 can be inserted into the driving groove 541, so that the pressure plate 83 and the outer pressure plate 54 are connected as a whole, and the driving surface 532 at the top of the driving member 531 contacts the driving inclined surface 851 below the driving plate 85;

[0078] Afterwards, the inner support plate 53 moves outward under the action of the lifting shaft 52, and the driving surface 532 pushes the driving inclined surface 851 to deflect upward, thereby causing the lifting plate 81 and the plurality of abutment plates 86 to move upward. When the abutment plates 86 move upward, they will push the pressure plate 83 to move inward, and the upper and lower ends of the outer pressure plate 54 are subjected to force synchronously, so that the upper and lower ends of the outer pressure plate 54 are subjected to force more evenly, thereby causing the outer pressure plate 54 and the inner support plate 53 to squeeze the inner and outer rings of the stator core 2 at the same time;

[0079] Then the laser welding head 63 welds the stator core 2 under the action of the lifting module 61, and then the intermittent rotating seat 4 rotates sixty degrees, and then continues to weld. After three consecutive rotations and welding, the lifting seat 7 moves up, the inner support plate 53 and the outer pressure plate 54 are synchronously moved away from the stator core 2, and the feeding equipment grabs the stator core 2 after welding and removes it, and then replaces the new stator core 2, and repeats the above welding operation;

[0080] By arranging an intermittent rotating seat 4 that rotates intermittently above the base 3, a pressure-maintaining mechanism 5 is arranged on the intermittent rotating seat 4, and the stator core 2 is stacked and placed between the inner support plate 53 and the outer pressure plate 54 in the pressure-maintaining mechanism 5, which can support and position the stator core 2, ensure that multiple stator cores 2 can be completely overlapped, improve welding accuracy, and the inner support plate 53 and the outer pressure plate 54 can also be separated from each other, so that the built-in space is larger, which is convenient for placing and taking out the stator core 2;

[0081] By arranging a lifting seat 7 above and below the base 3, and a pressure maintaining plate 71 below the lifting seat 7, and cooperating with the abutment mechanism 8, when the inner support plate 53 and the outer pressure plate 54 are synchronously close to the inner and outer rings of the stator core 2, the abutment mechanism 8 can apply pressure to the upper part of the outer pressure plate 54, so that the force on the entire outer pressure plate 54 is more uniform, and the inner support plate 53, the outer pressure plate 54 and the pressure maintaining plate can compress and maintain pressure on multiple directions of the stator core 2, so that multiple stator cores 2 are connected more closely, and the dimensional deformation after welding is ensured to be small, thereby improving the accuracy.

[0082] A processing method of an automatic processing device for processing a diesel generator, characterized in that it comprises the following steps:

[0083] S1. A plurality of stator cores 2 are superimposed on a component jig 21 under the action of a grabbing device, and the component jig 21 is placed on a conveyor belt 1 by the grabbing device and moved to the front of a base 3;

[0084] The feeding device grabs the assembly jig 21 and places it above the intermittent rotating seat 4, and the assembly jig 21 is placed in the pressure holding mechanism 5;

[0085] S2, the pressure-maintaining mechanism 5 is driven for the first time to contact and position the stator core 2;

[0086] S4, the push rod of the hydraulic cylinder 9 moves downward to make the lifting seat 7 move downward, and the pressure-maintaining plate 71 applies pressure to the stator core 2 and maintains the pressure;

[0087] The push rod of the lifting cylinder 51 continues to extend upward, and the inner support plate 53 and the outer pressure plate 54 press the stator core 2 inside and outside to maintain pressure;

[0088] S6, two groups of welding mechanisms 6 weld the side surfaces of the stator core 2. After welding two groups of welds, the turntable is rotated 60 degrees intermittently to weld again. After welding three times, the lifting seat 7 moves up, the inner support plate 53 and the outer pressure plate 54 are synchronously moved away from the stator core 2, and the feeding equipment grabs the stator core 2 after welding and removes it, and then replaces it with a new stator core 2, and repeats the above welding operation.

[0089] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0090] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0091] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic processing device for processing a diesel generator, comprising a base (3), characterized in that: A conveyor belt (1) for conveying workpieces and a loading device for grabbing and placing workpieces are arranged on the front side of the base (3); An intermittent rotating seat (4) is rotatably mounted above the base (3), and a pressure-maintaining mechanism (5) is arranged on the intermittent rotating seat (4), and the pressure-maintaining mechanism (5) includes a plurality of inner support plates (53) and outer pressure plates (54) distributed in an annular shape, and the outer pressure plates (54) are arranged outside the inner support plates (53) and move synchronously therebetween, and a component jig (21) is placed above the intermittent rotating seat (4), and the component jig (21) is located between the inner support plates (53) and the outer pressure plates (54), and a plurality of stator cores (2) are stacked and placed above the component jig (21), and the inner and outer sides of the stator cores (2) are respectively in contact with the inner support plates (53) and the outer pressure plates (54); A top frame (31) is installed above the base (3) via a support rod, a hydraulic cylinder (9) is installed above the top frame (31), a lifting seat (7) is rotatably installed at the bottom end of the push rod of the hydraulic cylinder (9), a pressure-maintaining plate (71) is arranged below the lifting seat (7), an abutment mechanism (8) is arranged on the lifting seat (7), and the abutment mechanism (8) and the pressure-maintaining plate (71) are both located directly above the pressure-maintaining mechanism (5); Two groups of welding mechanisms (6) are symmetrically arranged above the base (3).

2. The automatic processing device for diesel generator processing according to claim 1 is characterized in that: The welding mechanism (6) comprises a lifting module (61) vertically mounted above the base (3); an L-shaped frame (62) is mounted on a slider of the lifting module (61); and a laser welding head (63) is mounted on the L-shaped frame (62).

3. The automatic processing device for diesel generator processing according to claim 1 is characterized in that: The assembly jig (21) comprises a placement plate (212) of an annular structure, a plurality of assembly frames (222) distributed in an annular shape are welded on the inner side of the upper side of the placement plate (212), the stator core (2) is stacked and located above the placement plate (212), and the plurality of assembly frames (222) are respectively inserted into inner slots of the stator core (2).

4. The automatic processing device for diesel generator processing according to claim 1 is characterized in that: The base (3) is provided with a circular opening extending through the upper and lower parts, a support track (41) is installed above the circular opening, a track slider (45) distributed in a circumferential array is slidably provided on the support track (41), and the intermittent rotating seat (4) is placed above the support track (41) and connected to the track slider (45); A driving gear ring (42) is arranged below the intermittent rotating seat (4), an intermittent motor (43) is installed below the base (3) through a bracket, a driving gear (44) is installed on the output shaft of the intermittent motor (43), and the driving gear (44) is meshed with the driving gear ring (42).

5. The automatic processing device for diesel generator processing according to claim 1 is characterized in that: The upper end of the intermittent rotating seat (4) is provided with a plurality of guide grooves (401) distributed in a circumferential array, a synchronous shaft (543) is rotatably installed in the guide groove (401), and the lower ends of the inner support plate (53) and the outer pressure plate (54) are respectively provided with a screw seat 1 (534) and a screw seat 2 (542), and the screw seat 1 (534) and the screw seat 2 (542) are both connected to the synchronous shaft (543); The center of the intermittent rotating seat (4) is penetrated up and down to form an opening, and a lifting shaft (52) is slidably arranged in the opening. A plurality of groups of driving bias rods (533) distributed in an annular shape are rotatably installed above the outer ring of the lifting shaft (52) through axle pins, and the other end of the driving bias rod (533) is rotatably connected to the inner side of the inner support plate (53) through axle pins. A strip groove is arranged on the inner wall of the opening, and a strip block is arranged on the outer ring of the lifting shaft (52). The strip block is slidably placed in the strip groove to guide it. A lifting cylinder (51) is installed at the lower end of the intermittent rotating seat (4) through a bracket, and the top end of the push rod of the lifting cylinder (51) is rotatably connected to the bottom end of the lifting shaft (52) through a connecting bearing (521), the push rod of the lifting cylinder (51) is connected to the outer ring of the connecting bearing (521), and the lower end of the lifting shaft (52) is connected to the inner ring of the connecting bearing (521); The synchronous shaft (543) includes two sets of ball screws, and the spiral grooves on the two sets of ball screws have opposite rotation directions. The screw seat 1 (534) and the screw seat 2 (542) are nut seats corresponding to the two sets of ball screws. The protruding portion on the inner side of the outer pressure plate (54) forms a protrusion, and the bottom end of the protrusion is flush with the upper surface of the placement plate (212).

6. The automatic processing device for processing a diesel generator according to claim 5, characterized in that: The abutment mechanism (8) comprises three groups of reset members (84) arranged in an annular shape above the lifting seat (7); the lifting plate (81) is slidably sleeved on the three groups of reset members (84) up and down; the inner ring of the lower end of the lifting plate (81) is provided with multiple groups of driving plates (85) arranged in an annular shape, and the outer ring of the lower end is also provided with multiple groups of abutment plates (86) arranged in an annular shape, and a pressure plate (83) is slidably provided on the inner side of each group of abutment plates (86); The upper end of the pressure plate (83) is thickened on the outward side to form an inclined pressure portion (832), the lower end of the pressure plate (83) is bent inward to form an abutting inclined surface (861), and the outward side of the inclined pressure portion (832) is in sliding contact with the abutting inclined surface (861); The lower part of the abutting inclined surface (861) of the abutting plate (86) is bent to form a horizontal part, and the horizontal part contacts the upper part of the lifting seat (7).

7. The automatic processing device for processing a diesel generator according to claim 6, characterized in that: The lifting seat (7) is provided with a plurality of groups of moving holes (701) and moving holes (702) distributed in an annular shape, the plurality of pressure plates (83) are respectively slid up and down and placed in the plurality of moving holes (701), the plurality of driving plates (85) are respectively slid up and down and placed in the plurality of moving holes (702), and the width of the pressure plate (83) is smaller than the width of the moving hole (701), and the width of the driving plate (85) is smaller than the width of the moving hole (702); The lifting seat (7) is provided with a plurality of guide grooves (703) distributed in an annular shape, the guide grooves (703) are connected with the first moving hole (701), a guide block (831) is slidably arranged in the guide grooves (703), and the guide block (831) is connected with the inner side of the pressure plate (83); The reset member (84) comprises three guide rods (841) distributed in an annular shape and fixed above the lifting seat (7); the lifting plate (81) is sleeved on the three guide rods (841); nuts are threadedly connected above the guide rods (841); and a downward spring (842) is sleeved on the guide rods (841); the upper and lower ends of the downward spring (842) are respectively abutted between the nut and the lifting plate (81).

8. The automatic processing device for processing a diesel generator according to claim 7, characterized in that: A driving groove (541) is formed at the top of the outer pressure plate (54), and the shape and size of the driving groove (541) match the shape and form of the pressure plate (83); A driving member (531) is provided at the top of the inner support plate (53), a driving surface (532) inclined outwardly is provided at the top of the driving member (531), and a driving inclined surface (851) inclined inwardly is provided at the lower end of the driving plate (85), and when the pressure retaining plate (71) is pressed against the top of the stator core (2), the driving surface (532) at the top of the driving member (531) contacts the driving inclined surface (851) below the driving plate (85).

9. The automatic processing device for processing a diesel generator according to claim 8, characterized in that: A connecting sleeve (72) is arranged above the lifting seat (7), the inner ring of the connecting sleeve (72) is provided with three groups of evenly distributed circular grooves, a positioning column (721) is slidably arranged in the circular groove, a positioning spring (722) is abutted between the positioning column (721) and the circular groove, a circular shaft is arranged at the lower end of the push rod of the hydraulic cylinder (9), the outer ring of the circular shaft is provided with multiple groups of evenly distributed arc grooves, the positioning column (721) abuts against the arc groove, and the head of the positioning column (721) is a hemispherical structure; The lifting plate (81) is penetrated from top to bottom to form a through-hole (82), and the lifting plate (81) is sleeved on the circular shaft through the through-hole (82).

10. A processing method according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, a plurality of stator cores (2) are superimposed on a component jig (21) under the action of a gripping device, and the component jig (21) is placed on a conveyor belt (1) by the gripping device and moved to the front of a base (3); The feeding device grabs the assembly jig (21) and places it above the intermittent rotating seat (4), and the assembly jig (21) is placed in the pressure-maintaining mechanism (5); S2, the pressure-maintaining mechanism (5) is driven for the first time to contact and position the stator core (2); S4, the push rod of the hydraulic cylinder (9) moves downward so that the lifting seat (7) moves downward, and the pressure-maintaining plate (71) applies pressure to the stator core (2) and maintains the pressure; The push rod of the lifting cylinder (51) continues to extend upward, and the inner support plate (53) and the outer pressure plate (54) press the stator core (2) inside and outside to maintain pressure; S6. Two sets of welding mechanisms (6) weld the side of the stator core (2). After welding two sets of welds, the turntable is rotated 60 degrees intermittently to weld again. After welding three times, the lifting seat (7) moves up, the inner support plate (53) and the outer pressure plate (54) are synchronously moved away from the stator core (2), and the loading equipment grabs the stator core (2) after welding and removes it, and then replaces it with a new stator core (2), and repeats the above welding operation.

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