CN213879577U - Automatic commutator pressing and mounting equipment for motor rotor - Google Patents

Abstract

The utility model provides an automatic commutator press-fitting device for a motor rotor, which comprises a workbench, an index plate arranged on the workbench, an index plate driving device arranged at the bottom of the workbench and connected with the index plate, a rotor limiting component arranged at the periphery of the index plate, a rotor positioning mechanism, a commutator feeding and assembling mechanism, a commutator pressing mechanism and a blanking mechanism; a plurality of mounting blocks are uniformly distributed and fixed on the periphery of the dividing plate; the rotor limiting assembly comprises a limiting plate and a supporting piece; the limiting plate is positioned at the bottoms of the mounting blocks and is fixed on the workbench through the supporting piece; one end of the supporting piece extends to the position of the rotor positioning mechanism; the rotor positioning mechanism is used for pressing the rotor on the mounting block down to the position of the limiting plate; the commutator is loaded on the rotor by the commutator loading assembly mechanism; the commutator is pressed on the rotor by the commutator pressing mechanism; the blanking mechanism controls the rotor to be separated from the mounting block; embodies the utility model discloses assembly efficiency is high, the precision is high.

Description

Automatic commutator pressing and mounting equipment for motor rotor

Technical Field

The utility model relates to a motor rigging equipment technical field, in particular to automatic pressure equipment commutator equipment of electric motor rotor.

Background

The motor is very extensive at present, and its output is bigger and bigger, to the spare part assembly of motor, wherein need pack into the commutator and press fit fixedly on the pivot including the rotor, in the past usually the manual work assemble, the assembly efficiency is low, and manual assembly can not guarantee that every assembles in place in addition, leads to extravagant labour and assembly precision low, consequently needs to design an assembly equipment in order to solve this problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an automatic pressure equipment commutator equipment of electric motor rotor mentions the problem in order to solve the background art.

In order to achieve the above object, the present invention provides the following technical solutions:

an automatic commutator pressing device for a motor rotor comprises a workbench, an index plate arranged on the workbench, an index plate driving device arranged at the bottom of the workbench and connected with the index plate, a rotor limiting assembly, a rotor positioning mechanism, a commutator feeding assembly mechanism, a commutator pressing mechanism and a blanking mechanism, wherein the rotor limiting assembly, the rotor positioning mechanism, the commutator feeding assembly mechanism, the commutator pressing mechanism and the blanking mechanism are arranged on the workbench and are sequentially arranged on the periphery of the index plate; a plurality of mounting blocks in a semicircular structure are uniformly distributed and fixed on the periphery of the dividing plate; the mounting block is used for mounting the rotor and enabling the rotor to move up and down; the rotor limiting assembly comprises a limiting plate and a supporting piece; the limiting plates are positioned at the bottoms of the mounting blocks and are fixed on the workbench through supporting pieces; one end of the supporting piece extends to the position of the rotor positioning mechanism; the rotor positioning mechanism is used for pressing the rotor on the mounting block down to the position of the limiting plate; the commutator is loaded on the rotor by the commutator loading and assembling mechanism; the commutator is pressed on the rotor by the commutator pressing mechanism; the blanking mechanism controls the rotor to be separated from the mounting block.

It is right to the further description of the utility model, middle part position department towards the carousel outside on the installation piece is equipped with the location sand grip that sets up along vertical direction.

For further description of the present invention, the rotor positioning mechanism includes a first frame body, a first cylinder and a first pressing block; the first frame body is fixed on the workbench; the first air cylinder is arranged on the front side of the first frame body; the first pressing block is positioned above the mounting block and fixed at the power output end of the first air cylinder; the first air cylinder drives the first pressing block to move up and down.

The utility model is further described, which also comprises a lubricating oil supply component; the lubricating oil supply assembly comprises a second cylinder and a lubricating oil spray head; the second cylinder is fixed on the rear side of the first frame body, and the power output end of the second cylinder is connected with the lubricating oil spray head and used for driving the lubricating oil spray head to move back and forth.

For further description of the utility model, the commutator feeding and assembling mechanism comprises a material ejecting device, a vibration disc, a material receiving device, an assembling device and a first supporting device; the material ejecting device comprises a first support frame, a first sliding seat, an ejecting block and a third air cylinder; the first sliding seat is fixed on the workbench through a first supporting frame; the height positions of the first sliding seat and the mounting block are the same; the material ejecting block is connected in the first sliding seat in a sliding manner and used for ejecting the rotor on the mounting block from the side; the third cylinder is arranged on the rear side of the first sliding seat, and the power output end of the third cylinder is connected with the material ejecting block to drive the material ejecting block to move back and forth; a spring is arranged between the power output end of the third cylinder and the material ejecting block; the material receiving device comprises a second supporting frame, a second sliding seat, a material receiving block and a fourth air cylinder; the second sliding seat is fixed on the workbench through a second supporting frame; the height position of the second sliding seat is higher than that of the first sliding seat; the material receiving block is connected to the second sliding seat in a sliding manner; a material receiving groove is formed in the front end of the material receiving block; the fourth cylinder is arranged on the rear side of the second sliding seat, and the power output end of the fourth cylinder is connected with the material receiving block to drive the material receiving block to move back and forth; the vibration disc conveys the commutator to a material receiving groove of a material receiving block which is not pushed out; the assembling device comprises a third supporting frame, a third sliding seat, a fifth cylinder, a mounting seat, a sixth cylinder and a clamp cylinder; the third sliding seat is vertically fixed on the workbench through a third supporting frame; the mounting seat is connected to the third sliding seat in a vertically sliding manner; the sixth cylinder is fixed on the mounting seat, and the power output end of the sixth cylinder is connected with the clamp cylinder; the clamp cylinder is positioned right above the material receiving groove of the material receiving block in a pushing state; the first supporting device comprises a first clamping seat and a first limiting screw arranged on the first clamping seat; the first clamping seat is fixed on the workbench; the first limiting screw is located right below the clamp cylinder.

For further description of the present invention, the assembling device is further provided with an angle adjusting assembly; the angle adjusting assembly comprises a seventh cylinder, a rack, a gear, a second clamping seat, an upper shaft seat, a lower shaft seat, an adjusting shaft and a connecting shaft; the upper shaft seat and the lower shaft seat are distributed and fixed on the mounting seat from top to bottom; an installation space of the gear and the second clamping seat is reserved between the upper shaft seat and the lower shaft seat; two ends of the adjusting shaft are connected to the upper shaft seat and the lower shaft seat through bearings; the circumferential side surface of the adjusting shaft is provided with at least one first plane; the adjusting shaft is provided with an inner hole; the inner wall of the inner hole is provided with at least one second plane; the seventh cylinder is fixed on one side of the mounting seat; the rack is connected to the mounting seat in a front-back sliding manner and is connected with a power output end of the seventh cylinder; the gear and the adjusting shaft are sleeved on the adjusting shaft in a matching manner and are positioned between the upper shaft seat and the lower shaft seat; the gear is meshed with the rack; the second clamping seat is positioned between the upper shaft seat and the lower shaft seat and clamped on the adjusting shaft; the connecting shaft is matched with the adjusting shaft and can be movably arranged in the shaft hole of the adjusting shaft up and down; the upper end of the connecting shaft is rotatably connected with the fifth cylinder, and the lower end of the connecting shaft is fixedly connected with the clamp cylinder.

For further description of the present invention, the commutator pressing mechanism includes a pressing device and a second supporting device; the pressing device comprises a second frame body, an eighth cylinder, a fourth sliding seat, a sliding block, a third clamping seat and a pressing barrel; the second frame body is fixed on the workbench; the eighth cylinder is fixed at the upper end of the second frame body; the fourth sliding seat is arranged in the middle of the second frame body; the sliding block can be connected to the fourth sliding seat in a vertically sliding mode and is connected with the power output end of the eighth air cylinder; the third clamping seat is fixed on the sliding block; the pressing cylinder is fixed on the third clamping seat and is positioned right above the rotor of the position mounting block; the second supporting device comprises a fourth clamping seat and a second limiting screw arranged on the fourth clamping seat; the fourth clamping seat is fixed on the workbench; and the second limiting screw is positioned right below the pressing cylinder.

For further description of the present invention, the blanking mechanism includes a material-shifting plate and a material-receiving rail; the material poking plate is erected above the workbench; the material receiving rail is fixed on the workbench and is positioned beside the material shifting plate.

The utility model has the advantages that:

the utility model discloses on the position department of the spacing subassembly of rotor packed the rotor into the installation piece, the carousel rotates the back, when the rotor transports to rotor positioning mechanism, rotor positioning mechanism pushes down the location to the rotor, push away the pivot bottom of rotor to contact with the limiting plate, when the rotor transports to commutator material loading assembly devices, commutator material loading assembly devices packs the commutator into in the pivot of rotor, when this pivot is transported to commutator hold-down mechanism, commutator hold-down mechanism compresses tightly fixedly with the commutator on the rotor, then accomplish the assembly of commutator, when last through blanking mechanism, the rotor breaks away from the installation piece and collects, production efficiency can be improved to this design, save the labour, and the assembly precision is high.

Drawings

FIG. 1 is an overall structure of the present invention;

FIG. 2 is a block diagram of the mounting block of the present invention;

FIG. 3 is a structural diagram of the rotor positioning mechanism of the present invention;

FIG. 4 is a structural diagram of the loading and assembling mechanism of the commutator of the present invention;

FIG. 5 is a structural diagram of the material ejecting device of the present invention;

FIG. 6 is a block diagram of the mounting assembly of the present invention;

fig. 7 is a structural diagram of the commutator pressing mechanism of the present invention.

Detailed Description

The invention is further explained below with reference to the drawings:

as shown in fig. 1-7, an automatic press-fitting commutator device for a motor rotor comprises a workbench 1, an index plate 2 installed on the workbench 1, an index plate driving device 3 installed at the bottom of the workbench 1 and connected with the index plate 2, a rotor limiting assembly 4 installed on the workbench 1 and sequentially arranged on the periphery of the index plate 2, a rotor positioning mechanism 5, a commutator feeding and assembling mechanism 6, a commutator pressing mechanism 7 and a blanking mechanism 8; a plurality of mounting blocks 21 with semicircular structures are uniformly distributed and fixed on the periphery of the dividing plate 2; the mounting block 21 is used for mounting the rotor and enabling the rotor to move up and down; the rotor limiting assembly 4 comprises a limiting plate 41 and a support 42; the limiting plate 41 is positioned at the bottom of the mounting blocks 21 and fixed on the workbench 1 through a support member 42; one end of the support 42 extends to the position of the rotor positioning mechanism 5; the rotor positioning mechanism 5 is used for pressing the rotor on the mounting block 21 down to the position of the limiting plate 41; the commutator is loaded on the rotor by the commutator loading and assembling mechanism 6; the commutator is pressed on the rotor by the commutator pressing mechanism 7; the blanking mechanism 8 controls the rotor to be separated from the mounting block 21; the dividing disc driving device 3 drives the dividing disc 2 to rotate anticlockwise step by step, the rotor limiting component 4, the rotor positioning mechanism 5, the commutator feeding assembly mechanism 6, the commutator pressing mechanism 7 and the blanking mechanism 8 are sequentially arranged on the periphery of the dividing disc 2 along the clockwise direction, a rotor is manually loaded on the mounting block 21 from the position of the rotor limiting component 4, after the rotating disc rotates, when the rotor is conveyed to the rotor positioning mechanism 5, the rotor positioning mechanism 5 presses and positions the rotor, the bottom of a rotating shaft of the rotor is pushed to be in contact with the limiting plate 41, when the rotor is conveyed to the commutator feeding assembly mechanism 6, the commutator feeding assembly mechanism 6 loads the commutator onto the rotating shaft of the rotor, when the rotating shaft is conveyed to the commutator pressing mechanism 7, the commutator pressing mechanism 7 presses and fixes the commutator on the rotor, the assembly of the commutator is completed, and finally when the rotor passes through the blanking mechanism 8, the rotor is detached from the mounting block 21 and collected.

The middle position department towards the carousel outside on the installation piece 21 is equipped with along the location sand grip 211 of vertical direction setting, and the setting of location sand grip 211 cooperates the location with the lateral wall groove position of rotor.

The rotor positioning mechanism 5 comprises a first frame body 51, a first air cylinder 52 and a first pressing block 53; the first frame body 51 is fixed on the workbench 1; the first cylinder 52 is installed at the front side of the first frame body 51; the first pressing block 53 is positioned above the mounting block 21 and fixed at the power output end of the first air cylinder 52; the first air cylinder 52 drives the first pressing block 53 to move up and down; the first cylinder 52 drives the first pressing block 53 to press down, the first pressing block 53 pushes the rotor to move downwards from one side of the top of the rotor, so that the rotating shaft at the bottom of the rotor is pressed against the limiting plate 41, and the rotor is positioned.

A lube oil supply assembly 54; the lubricating oil supply unit 54 includes a second cylinder 541 and a lubricating oil spray head 542; the second cylinder 541 is fixed on the rear side of the first frame body 51, the power output end of the second cylinder 541 is connected with the lubricating oil spray head 542 and used for driving the lubricating oil spray head 542 to move forwards and backwards, the second cylinder 541 drives the lubricating oil spray head 542 to move forwards, so that the lubricating oil spray head 542 faces the rotating shaft of the rotor and controls lubricating oil to be sprayed out, lubricating oil is added after positioning, and assembly of the commutator is facilitated.

The commutator feeding and assembling mechanism 6 comprises a material ejecting device 61, a vibration disc 62, a material receiving device 63, an assembling device 64 and a first supporting device 65; the material ejecting device 61 comprises a first support frame 611, a first sliding seat 612, an ejecting block 613 and a third air cylinder 614; the first sliding seat 612 is fixed on the workbench 1 through a first supporting frame 611; the first sliding seat 612 and the mounting block 21 are at the same height position; the ejector block 613 is slidably connected to the rotor in the first sliding seat 612 for laterally ejecting the mounting block 21; the third cylinder 614 is installed at the rear side of the first sliding seat 612, and the power output end is connected with the ejector block 613 to drive the ejector block 613 to move back and forth; a spring 615 is arranged between the power output end of the third cylinder 614 and the material ejecting block 613; the material receiving device 63 comprises a second supporting frame 631, a second sliding seat 632, a material receiving block 633 and a fourth cylinder 634; the second sliding base 632 is fixed on the workbench 1 through a second supporting frame 631; the height position of the second slide 632 is higher than that of the first slide 612; the material receiving block 633 is slidably connected to the second sliding base 632; a material receiving groove 6331 is arranged at the front end of the material receiving block 633; the fourth cylinder 634 is installed at the rear side of the second sliding seat 632, and the power output end is connected with the material receiving block 633 to drive the material receiving block 633 to move back and forth; the vibration disc 62 conveys the commutator into the material receiving groove 6331 of the material receiving block 633 in a non-push-out state; the assembling device 64 includes a third supporting frame 641, a third sliding seat 642, a fifth air cylinder 643, a mounting seat 644, a sixth air cylinder 645 and a clamp air cylinder 646; the third sliding base 642 is vertically fixed on the workbench 1 through a third supporting frame 641; the mounting base 644 is connected to the third sliding base 642 in a vertically sliding manner; the sixth cylinder 645 is fixed on the mounting seat 644, and the power output end is connected with the clamp cylinder 646; the clamp cylinder 646 is positioned right above the material receiving groove 6331 of the material receiving block 633 in a push-out state; the first supporting device 65 comprises a first clamping seat 651 and a first limiting screw 652 arranged on the first clamping seat 651; the first clamping seat 651 is fixed on the workbench 1; the first limit screw 652 is located directly below the clamp cylinder 646; when the rotor is conveyed to the commutator feeding assembly mechanism 6, the third cylinder 614 of the material ejecting device 61 pushes the material ejecting block 613 to move forward to eject the rotor on the mounting block 21, so as to prevent the rotor from falling out in the assembly process, the commutator is conveyed through the vibration disc 62 to convey the commutator one by one to the material receiving groove 6331 of the material receiving block 633, the fourth cylinder 634 pushes the material receiving block 633 to move forward, so that the material receiving groove 6331 is positioned between the clamp cylinder 646 and the rotor at the position, the sixth cylinder 645 drives the clamp cylinder 646 to move downward and clamps the commutator in the material receiving groove 6331 through the clamp cylinder 646, after the commutator is clamped, the sixth cylinder 645 resets to take the commutator out of the material receiving groove 6331, the fourth cylinder 634 resets to drive the material receiving block 633 to reset for next material receiving, the fifth cylinder 643 drives the mounting seat 644 to move downward again, so that the commutator is loaded on the rotating shaft of the rotor limited by the material ejecting device 61, during the assembly process, the first limiting screw 652 on the first supporting device 65 at the bottom supports the rotating shaft of the rotor, and plays a role of lower limiting.

The assembling device 64 is also provided with an angle adjusting component 647; the angle adjusting assembly 647 comprises a seventh air cylinder 6471, a rack 6472, a gear 6473, a second clamp seat 6474, an upper shaft seat 6475, a lower shaft seat 6476, an adjusting shaft 6477 and a connecting shaft 6478; the upper shaft seat 6475 and the lower shaft seat 6476 are vertically distributed and fixed on the mounting seat 644; an installation space of the gear 6473 and the second clamping seat 6474 is reserved between the upper shaft seat 6475 and the lower shaft seat 6476; two ends of the adjusting shaft 6477 are connected to the upper shaft seat 6475 and the lower shaft seat 6476 through bearings; the circumferential side surface of the adjusting shaft 6477 is provided with at least one first plane; the adjustment shaft 6477 has an inner hole; the inner wall of the inner hole is provided with at least one second plane; the seventh air cylinder 6471 is fixed to one side of the mounting base 644; the rack 6472 is connected to the mounting base 644 in a front-back sliding manner and is connected with a power output end of the seventh air cylinder 6471; the gear 6473 and the adjusting shaft 6477 are sleeved on the adjusting shaft 6477 in a matching manner and are positioned between the upper shaft seat 6475 and the lower shaft seat 6476; the gear 6473 is meshed with the rack 6472; the second clamping seat 6474 is positioned between the upper shaft seat 6475 and the lower shaft seat 6476 and clamped on the adjusting shaft 6477; the connecting shaft 6478 and the adjusting shaft 6477 are matched and can be movably arranged in the shaft hole of the adjusting shaft 6477 up and down; the upper end of the connecting shaft 6478 is rotatably connected with the fifth cylinder 643, and the lower end of the connecting shaft 6478 is fixedly connected with the clamp cylinder 646; in order to match the material taking from the material receiving groove 6331, the clamping cylinder needs to adjust the angle, so the angle adjusting assembly 647 is designed, the seventh cylinder 6471 pushes the rack 6472 to move back and forth, so as to drive the gear 6473 to rotate, the gear 6473 drives the adjusting shaft 6477 to rotate, the adjusting shaft 6477 drives the connecting shaft 6478 to rotate, so as to drive the clamp cylinder 646 connected to the lower end of the adjusting shaft 6477 to rotate and adjust the direction, the second clamp seat 6474 and the gear 6473 are located between the upper shaft seat 6475 and the lower shaft seat 6476, the adjusting shaft 6477 is clamped by the second clamp seat 6474 to prevent the adjusting shaft 6477 from descending, and the design of the first plane and the second plane on the adjusting shaft 6477 improves the transmission precision of the gear 6473 and the connecting shaft 6478 connected with the first plane and the second plane.

The commutator pressing mechanism 7 comprises a pressing device 71 and a second supporting device 72; the pressing device 71 comprises a second frame body 711, an eighth cylinder 712, a fourth sliding seat 713, a sliding block 714, a third clamping seat 715 and a pressing cylinder 716; the second frame body 711 is fixed on the workbench 1; the eighth cylinder 712 is fixed to the upper end of the second frame 711; the fourth sliding seat 713 is installed in the middle of the second frame 711; the sliding block 714 is connected to the fourth sliding seat 713 in a vertically sliding manner and is connected to a power output end of the eighth cylinder 712; the third clamping seat 715 is fixed on the sliding block 714; the pressing cylinder 716 is fixed on the third clamping seat 715 and is positioned right above the rotor of the position mounting block 21; the second supporting device 72 comprises a fourth clamping seat and a second limiting screw arranged on the fourth clamping seat; the fourth clamping seat is fixed on the workbench 1; the second limit screw is located right below the pressing cylinder 716, when the rotor moves to the commutator pressing mechanism 7, the eighth cylinder 712 drives the pressing cylinder 716 to move downwards, the pressing cylinder 716 is sleeved on a rotating shaft of the rotor and pushes against the commutator, and the lower end of the rotor is supported by the second limit screw, so that the commutator is pressed on the rotor.

The blanking mechanism 8 comprises a material shifting plate 81 and a material receiving rail 82; the kick-out plate 81 is erected above the workbench 1; the material receiving rail 82 is fixed on the workbench 1 and located beside the material shifting plate 81, the material shifting plate 81 is used for shifting the rotor from the mounting block 21, and the rotor falls on the material receiving rail 82 and is sent out along with the material receiving rail 82.

The working principle of the embodiment is as follows:

the rotor is manually installed on the installation block 21 from the position of the rotor limiting component 4, after the rotary table rotates, when the rotor is conveyed to the rotor positioning mechanism 5, the rotor positioning mechanism 5 presses down and positions the rotor, the bottom of a rotating shaft of the rotor is pushed to be in contact with the limiting plate 41, when the rotor is conveyed to the commutator loading assembly mechanism 6, the commutator loading assembly mechanism 6 installs the commutator into the rotating shaft of the rotor, when the rotating shaft is conveyed to the commutator pressing mechanism 7, the commutator pressing mechanism 7 presses and fixes the commutator on the rotor, the assembly of the commutator is completed, and finally when the rotor passes through the blanking mechanism 8, the rotor is separated from the installation block 21 and is collected.

The above description is not intended to limit the technical scope of the present invention, and any modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are still within the scope of the technical solution of the present invention.

Claims (8)

1. The utility model provides an automatic pressure equipment commutator equipment of electric motor rotor which characterized in that: the automatic feeding device comprises a workbench, an index plate arranged on the workbench, an index plate driving device arranged at the bottom of the workbench and connected with the index plate, a rotor limiting assembly, a rotor positioning mechanism, a commutator feeding and assembling mechanism, a commutator pressing mechanism and a blanking mechanism, wherein the rotor limiting assembly, the rotor positioning mechanism, the commutator feeding and assembling mechanism, the commutator pressing mechanism and the blanking mechanism are arranged on the workbench and are sequentially arranged on the periphery of the index plate; a plurality of mounting blocks in a semicircular structure are uniformly distributed and fixed on the periphery of the dividing plate; the mounting block is used for mounting the rotor and enabling the rotor to move up and down; the rotor limiting assembly comprises a limiting plate and a supporting piece; the limiting plates are positioned at the bottoms of the mounting blocks and are fixed on the workbench through supporting pieces; one end of the supporting piece extends to the position of the rotor positioning mechanism; the rotor positioning mechanism is used for pressing the rotor on the mounting block down to the position of the limiting plate; the commutator is loaded on the rotor by the commutator loading and assembling mechanism; the commutator is pressed on the rotor by the commutator pressing mechanism; the blanking mechanism controls the rotor to be separated from the mounting block.

2. The automatic press-fitting commutator device for the motor rotor as claimed in claim 1, wherein: the middle position department towards the carousel outside on the installation piece is equipped with the location sand grip that sets up along vertical direction.

3. The automatic press-fitting commutator device for the motor rotor as claimed in claim 1, wherein: the rotor positioning mechanism comprises a first frame body, a first air cylinder and a first pressing block; the first frame body is fixed on the workbench; the first air cylinder is arranged on the front side of the first frame body; the first pressing block is positioned above the mounting block and fixed at the power output end of the first air cylinder; the first air cylinder drives the first pressing block to move up and down.

4. The automatic press-fitting commutator device for the motor rotor as claimed in claim 3, wherein: also includes a lubricating oil supply assembly; the lubricating oil supply assembly comprises a second cylinder and a lubricating oil spray head; the second cylinder is fixed on the rear side of the first frame body, and the power output end of the second cylinder is connected with the lubricating oil spray head and used for driving the lubricating oil spray head to move back and forth.

5. The automatic press-fitting commutator device for the motor rotor as claimed in claim 1, wherein: the commutator feeding and assembling mechanism comprises a material ejecting device, a vibration disc, a material receiving device, an assembling device and a first supporting device; the material ejecting device comprises a first support frame, a first sliding seat, an ejecting block and a third air cylinder; the first sliding seat is fixed on the workbench through a first supporting frame; the height positions of the first sliding seat and the mounting block are the same; the material ejecting block is connected in the first sliding seat in a sliding manner and used for ejecting the rotor on the mounting block from the side; the third cylinder is arranged on the rear side of the first sliding seat, and the power output end of the third cylinder is connected with the material ejecting block to drive the material ejecting block to move back and forth; a spring is arranged between the power output end of the third cylinder and the material ejecting block; the material receiving device comprises a second supporting frame, a second sliding seat, a material receiving block and a fourth air cylinder; the second sliding seat is fixed on the workbench through a second supporting frame; the height position of the second sliding seat is higher than that of the first sliding seat; the material receiving block is connected to the second sliding seat in a sliding manner; a material receiving groove is formed in the front end of the material receiving block; the fourth cylinder is arranged on the rear side of the second sliding seat, and the power output end of the fourth cylinder is connected with the material receiving block to drive the material receiving block to move back and forth; the vibration disc conveys the commutator to a material receiving groove of a material receiving block which is not pushed out; the assembling device comprises a third supporting frame, a third sliding seat, a fifth cylinder, a mounting seat, a sixth cylinder and a clamp cylinder; the third sliding seat is vertically fixed on the workbench through a third supporting frame; the mounting seat is connected to the third sliding seat in a vertically sliding manner; the sixth cylinder is fixed on the mounting seat, and the power output end of the sixth cylinder is connected with the clamp cylinder; the clamp cylinder is positioned right above the material receiving groove of the material receiving block in a pushing state; the first supporting device comprises a first clamping seat and a first limiting screw arranged on the first clamping seat; the first clamping seat is fixed on the workbench; the first limiting screw is located right below the clamp cylinder.

6. The automatic press-fitting commutator device for the motor rotor as claimed in claim 5, wherein: the assembly device is also provided with an angle adjusting component; the angle adjusting assembly comprises a seventh cylinder, a rack, a gear, a second clamping seat, an upper shaft seat, a lower shaft seat, an adjusting shaft and a connecting shaft; the upper shaft seat and the lower shaft seat are distributed and fixed on the mounting seat from top to bottom; an installation space of the gear and the second clamping seat is reserved between the upper shaft seat and the lower shaft seat; two ends of the adjusting shaft are connected to the upper shaft seat and the lower shaft seat through bearings; the circumferential side surface of the adjusting shaft is provided with at least one first plane; the adjusting shaft is provided with an inner hole; the inner wall of the inner hole is provided with at least one second plane; the seventh cylinder is fixed on one side of the mounting seat; the rack is connected to the mounting seat in a front-back sliding manner and is connected with a power output end of the seventh cylinder; the gear and the adjusting shaft are sleeved on the adjusting shaft in a matching manner and are positioned between the upper shaft seat and the lower shaft seat; the gear is meshed with the rack; the second clamping seat is positioned between the upper shaft seat and the lower shaft seat and clamped on the adjusting shaft; the connecting shaft is matched with the adjusting shaft and can be movably arranged in the shaft hole of the adjusting shaft up and down; the upper end of the connecting shaft is rotatably connected with the fifth cylinder, and the lower end of the connecting shaft is fixedly connected with the clamp cylinder.

7. The automatic press-fitting commutator device for the motor rotor as claimed in claim 1, wherein: the commutator pressing mechanism comprises a pressing device and a second supporting device; the pressing device comprises a second frame body, an eighth cylinder, a fourth sliding seat, a sliding block, a third clamping seat and a pressing barrel; the second frame body is fixed on the workbench; the eighth cylinder is fixed at the upper end of the second frame body; the fourth sliding seat is arranged in the middle of the second frame body; the sliding block can be connected to the fourth sliding seat in a vertically sliding mode and is connected with the power output end of the eighth air cylinder; the third clamping seat is fixed on the sliding block; the pressing cylinder is fixed on the third clamping seat and is positioned right above the rotor of the position mounting block; the second supporting device comprises a fourth clamping seat and a second limiting screw arranged on the fourth clamping seat; the fourth clamping seat is fixed on the workbench; and the second limiting screw is positioned right below the pressing cylinder.

8. The automatic press-fitting commutator device for the motor rotor as claimed in claim 1, wherein: the blanking mechanism comprises a material shifting plate and a material receiving rail; the material poking plate is erected above the workbench; the material receiving rail is fixed on the workbench and is positioned beside the material shifting plate.

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