Full-automatic self-adaptive direct-current brushless motor riveting work station

Abstract

The invention discloses a full-automatic self-adaptive direct-current brushless motor riveting work station, and relates to the technical field of motor manufacturing, the full-automatic self-adaptive direct-current brushless motor riveting work station comprises a rack, a riveting mechanism and a positioning mechanism, the rack is provided with a workbench, the riveting mechanism comprises an oil cylinder, a fixing plate and a plurality of guide rods, the driving end of the oil cylinder is connected with an upper die, and the upper die is connected with a lower die; the upper die comprises an upper die base, a plurality of upper die supporting columns and an upper die ring, the upper die supporting columns are connected with the upper die base and the upper die ring respectively, a lubricating assembly is arranged on the upper die, the positioning mechanism comprises a lower die block, an annular air chamber is formed in the lower die block, a partition block is arranged in the annular air chamber, and the partition block is connected with the upper die base. The two sides of the separation block are externally connected with air pumps correspondingly, and air supply assemblies are arranged in the annular air chamber at intervals. The surface cleaning and lubricating device can be used for surface cleaning and lubricating before riveting of a shell and a stator, and can also be used for quality self-inspection after riveting.

Description

Technical Field

[0001] The present invention relates to the technical field of motor manufacturing, and particularly to a fully automatic adaptive DC brushless motor riveting and pressing workstation. Background Art

[0002] Riveting and pressing is a method in the riveting process where, under external pressure, the riveting part causes plastic deformation of the body material and squeezes into a specially designed prefabricated groove, thereby achieving reliable connection of two parts. It forms a firm connection by applying pressure at the connection part to cause plastic deformation of the material.

[0003] A DC brushless motor consists of a motor main body and a driver, and is a typical mechatronic product. In the production process of a DC brushless motor, the riveting and pressing process is mainly applied to components such as the rotor, bracket, and housing. Among them, riveting and pressing is usually also used to connect the stator and the housing of the DC brushless motor. During the assembly process, it is necessary to ensure the alignment between the stator core and the housing, and at the same time avoid deformation or damage of the stator during the riveting and pressing process.

[0004] The current assembly process generally first fixes the stator, then places the housing on the stator, and presses the housing down to the corresponding position through riveting and pressing, and disengages after maintaining pressure for a period of time. During the process of the housing being pressed down, it will generate friction with the surface of the stator, and if the resistance is too large, it will damage the surface of the housing and may also cause damage to the stator. Summary of the Invention

[0005] The purpose of the present invention is to provide a fully automatic adaptive DC brushless motor riveting and pressing workstation to solve the problems raised in the above background art.

[0006] To solve the above technical problems, the present invention provides the following technical solution: A fully automatic adaptive DC brushless motor riveting and pressing workstation, including a frame, a riveting and pressing mechanism, and a positioning mechanism. A workbench is provided on the frame, and the positioning mechanism is arranged on the workbench for placing the stator and the housing and positioning or limiting them. The riveting and pressing mechanism is erected above the positioning mechanism for riveting and connecting the stator and the housing.

[0007] According to the above technical solution, the riveting and pressing mechanism includes an oil cylinder, a fixing plate, and several guide rods. One end of the guide rod is fixed on the workbench, and the other end of the guide rod is connected to the fixing plate. The oil cylinder is installed on the fixing plate, and the driving end of the oil cylinder is connected with an upper die. The upper die includes an upper die base, several upper die columns, and an upper die ring. The upper die columns are respectively connected to the upper die base and the upper die ring, and a lubrication component is arranged on the upper die.

[0008] According to the above technical solution, the upper die base is connected with a first slide plate, and the first slide plate is slidably matched with each guide rod.

[0009] According to the above technical solution, the lubrication assembly includes a second slide plate, which is slidably engaged with the upper die support pillar. An electric push rod is connected to the upper side of the second slide plate, and the electric push rod is fixed to the lower side of the upper die base. A toothed disc is rotatably arranged on the lower side of the second slide plate. A number of first cylinders are fixedly arranged on the circumferential surface of the toothed disc. The driving end of the first cylinder is connected to a moving seat. A groove is provided at the bottom of the moving seat, and several telescopic rods are arranged at intervals in the groove. The telescopic end of the telescopic rod is fixed to a connecting plate, and a sponge body is arranged on the surface of the connecting plate. A lubricant cavity is arranged in the moving seat, and oil channels are arranged in cooperation with each telescopic rod.

[0010] According to the above technical solution, the telescopic rod includes a first sleeve, a moving rod and a first spring. The first sleeve is a hollow structure, the moving rod is slidably engaged with the first sleeve, the first spring is arranged in the first sleeve and its two ends are respectively connected to the moving rod and the moving seat. An oil channel interface is provided on the moving rod, and the moving rod is open at one end facing the connecting plate.

[0011] According to the above technical solution, a pressure sensing module is arranged at the connection between the first spring and the moving seat for detecting the telescopic state of the moving rod.

[0012] According to the above technical solution, a gear is arranged in cooperation with the toothed disc, and the gear is connected to a motor, and the motor is fixed on the second slide plate. In actual operation, the motor is started to drive the gear to rotate, thereby controlling each first cylinder to drive the moving seat to rotate circumferentially.

[0013] According to the above technical solution, the positioning mechanism includes a lower die and a group of limiting components. The lower die is installed on the workbench and corresponds to the upper die, and the limiting components are arranged on both sides of the lower die.

[0014] According to the above technical solution, the lower die includes a lower die base, a lower die block and a mandrel. The lower die block is fixed on the lower die base, a separating ring is arranged on the lower die block, and the mandrel is arranged at the central position of the lower die block.

[0015] According to the above technical solution, several long grooves are opened on the circumferential surface of the outer side of the separating ring, and circular grooves are arranged on the lower die block corresponding to each long groove.

[0016] According to the above technical solution, an annular air chamber is opened on the outer side of the lower die block relative to the separating ring. A separating block is arranged in the annular air chamber. Air pumps are respectively externally connected to both sides of the separating block, and air supply components are arranged at intervals in the annular air chamber.

[0017] According to the above technical solution, the air supply component includes a second sleeve. Several sliding grooves are arranged at intervals on the inner wall of the second sleeve. A rotating cylinder is arranged in the second sleeve, and the rotating cylinder is rotatably arranged in the annular air chamber. A slider is arranged on the upper side of the rotating cylinder in cooperation with the sliding groove. An air inlet is opened on the lower side of the rotating cylinder. A second spring is arranged in the rotating cylinder. One end of the second spring is connected to the wall surface of the annular air chamber, and the other end of the second spring is connected to a top cover, and the top cover is fixedly connected to the second sleeve.

[0018] According to the above technical solution, a plurality of ventilation openings are provided on the circumference of the top cover, and a plurality of communication grooves are provided at intervals on the upper side of the second sleeve. The communication grooves and the sliding grooves are arranged staggeredly. The lower module is provided with corresponding circular holes in cooperation with each air supply component, and a plurality of stoppers equal in number to the communication grooves are arranged on the circumference of the circular holes.

[0019] According to the above technical solution, a pair of deflection plates are provided on the lower side of the rotating cylinder, electromagnetic blocks are provided on the inner wall of the annular air chamber in cooperation with the deflection plates, the side of the deflection plate facing the electromagnetic block is a magnetic adsorption surface, and the corresponding surface of the electromagnetic block adjacent to the deflection plate is an adsorption surface.

[0020] According to the above technical solution, the limiting component includes a second cylinder, a tool holder is arranged at the driving end of the second cylinder, and a stop knife is arranged on the tool holder.

[0021] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: in the present invention, through the provision of a lubrication component, the inner wall of the housing and the outer surface of the stator can be comprehensively lubricated before riveting, improving the riveting quality. Through the provision of an air supply component, by changing the air flow direction, it is possible to clean the contact surfaces of the housing and the stator during riveting and evaluate the connection state of the housing and the stator after riveting, and it is possible to judge whether the riveting is in place and whether the riveting position is correct, improving the intelligence of the riveting workstation. Description of the Drawings

[0022] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings: Figure 1 is the overall structural schematic diagram of the riveting workstation of the present invention; Figure 2 is the partial structural schematic diagram of the riveting workstation of the present invention; Figure 3 is the structural schematic diagram of the riveting mechanism of the present invention; Figure 4 is the structural schematic diagram of the upper die of the present invention; Figure 5 is the partial schematic diagram of the lubrication component of the present invention; Figure 6 is the partial cross-sectional view of the lubrication component of the present invention; Figure 7 is the structural schematic diagram of the lower die of the present invention; Figure 8 is the structural schematic diagram of the lower module of the present invention; Figure 9 is the partial cross-sectional view of the lower module of the present invention; Figure 10 is the structural schematic diagram of the annular air chamber of the present invention; Figure 11 is the present invention Figure 10Schematic enlarged view of area A; Figure 12 is a schematic structural view of the air supply assembly of the present invention; Figure 13 is a partial cross-sectional view of the air supply assembly of the present invention; Figure 14 is a schematic structural view of the round hole and the stopper of the present invention; Figure 15 is a schematic structural view of the limit assembly of the present invention.

[0023] In the figure: 1, frame; 11, workbench; 2, stator; 3, housing; 41, oil cylinder; 42, fixing plate; 43, guide rod; 44, upper die; 441, upper die base; 442, upper die support; 443, upper die ring; 45, slide plate one; 5, lubrication assembly; 51, slide plate two; 52, electric push rod; 53, gear disk; 531, gear; 54, cylinder one; 55, moving seat; 551, lubricant chamber; 552, oil passage; 56, telescopic rod; 561, sleeve one; 562, moving rod; 563, spring one; 564, oil passage interface; 57, connecting plate; 58, sponge body; 59, motor; 6, lower die; 61, lower die base; 62, lower die block; 621, separating ring; 622, long slot; 623, round slot; 624, annular air chamber; 625, separating block; 626, air pump; 627, round hole; 628, stopper; 629, electromagnetic block; 63, core rod; 7, air supply assembly; 71, sleeve two; 711, chute; 712, communication slot; 72, rotating cylinder; 721, slider; 722, air inlet; 73, spring two; 74, top cover; 741, ventilation port; 75, deflecting plate; 8, limit assembly; 81, cylinder two; 82, tool holder; 83, stop knife. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1 - 15 , the present invention provides a technical solution: a fully automatic adaptive DC brushless motor riveting workstation, including a frame 1, a riveting mechanism and a positioning mechanism. A workbench 11 is arranged on the frame 1. The positioning mechanism is arranged on the workbench 11 and is used for placing the stator 2 and the housing 3 and performing positioning or limiting. The riveting mechanism is erected on the upper side of the positioning mechanism and is used for riveting and connecting the stator 2 and the housing 3.

[0026] As Figure 3 , Figure 4As shown in the figure, the riveting mechanism includes an oil cylinder 41, a fixing plate 42 and several guide rods 43. One end of the guide rod 43 is fixed on the workbench 11, and the other end of the guide rod 43 is connected to the fixing plate 42. The oil cylinder 41 is installed on the fixing plate 42. The driving end of the oil cylinder 41 is connected with an upper die 44. The upper die 44 includes an upper die base 441, several upper die struts 442 and an upper die ring 443. The upper die struts 442 are respectively connected to the upper die base 441 and the upper die ring 443. A lubrication assembly 5 is arranged on the upper die 44.

[0027] In actual operation, the upper die base 441 is connected with a first slide plate 45, and the first slide plate 45 is slidably matched with each guide rod 43. When the oil cylinder 41 is started, it drives the first slide plate 45 to move up and down, so as to control the upper die 44 to perform riveting, and the guide rod 43 is used for guiding.

[0028] As Figure 5 , Figure 6 shown in the figure, the lubrication assembly 5 includes a second slide plate 51. The second slide plate 51 is slidably matched with the upper die struts 442. An electric push rod 52 is connected to the upper side of the second slide plate 51, and the electric push rod 52 is fixed to the lower side of the upper die base 441. A gear disc 53 is rotatably arranged on the lower side of the second slide plate 51. A number of first cylinders 54 are fixed on the circumferential surface of the gear disc 53. The driving end of the first cylinder 54 is connected with a moving seat 55. A groove is arranged at the bottom of the moving seat 55, and several telescopic rods 56 are arranged at intervals in the groove. The telescopic end of the telescopic rod 56 is fixed with a connecting plate 57, and a sponge body 58 is arranged on the surface of the connecting plate 57. A lubricant cavity 551 is arranged in the moving seat 55, and an oil passage 552 is arranged in cooperation with each telescopic rod 56.

[0029] The telescopic rod 56 includes a first sleeve 561, a moving rod 562 and a first spring 563. The first sleeve 561 is a hollow structure. The moving rod 562 is slidably matched with the first sleeve 561. The first spring 563 is arranged in the first sleeve 561 and its two ends are respectively connected to the moving rod 562 and the moving seat 55. An oil passage interface 564 is arranged on the moving rod 562, and the moving rod 562 is open at one end facing the connecting plate 57.

[0030] The supplementary description based on the above structure is as follows: The connecting plate 57 is provided with corresponding notches in cooperation with each moving rod 562. Preferably, a pressure sensing module is arranged at the connection between the first spring 563 and the moving seat 55 for detecting the telescopic state of the moving rod 562. The sponge body 58 is located under the upper die ring 443. In the initial state, the moving rod 562 extends out of the first sleeve 561 under the action of the first spring 563. At this time, the position of the oil passage interface 564 deviates from that of the oil passage 552, and no lubricant flows in the moving rod 562. When the first cylinder 54 controls the moving seat 55 to push outwards and contacts the inner wall of the corresponding housing 3, the moving rod 562 is squeezed and retracted into the first sleeve 561. At this time, the positions of the oil passage interface 564 and the oil passage 552 correspond, and the lubricant flows through the oil passage 552 into the interior of the moving rod 562, and then flows to the sponge body 58, so as to lubricate the inner wall of the housing 3.

[0031] Further, a gear 531 is arranged in cooperation with the toothed disc 53. The gear 531 is connected to a motor 59, and the motor 59 is fixed on the second slide plate 51. During actual operation, the motor 59 is started to drive the gear 531 to rotate, thereby controlling each first cylinder 54 to drive the moving seat 55 to rotate circumferentially.

[0032] As Figure 2 shown, the positioning mechanism includes a lower die 6 and a set of limiting components 8. The lower die 6 is installed on the workbench 11 and corresponds to the upper die 44. The limiting components 8 are arranged on both sides of the lower die 6.

[0033] As Figure 7 shown, the lower die 6 includes a lower die base 61, a lower die block 62 and a mandrel 63. The lower die block 62 is fixed on the lower die base 61. A separating ring 621 is arranged on the lower die block 62, and the mandrel 63 is arranged at the central position of the lower die block 62.

[0034] During actual operation, a stator 2 is sleeved outside the mandrel 63. The outer shell of the stator 2 is erected on the separating ring 621. Before riveting, the housing 3 is sleeved on the stator 2. After riveting is completed, the housing 3 moves downward and is located outside the stator 2 to achieve a tight connection with the stator 2.

[0035] In one embodiment, as Figure 8 shown, a plurality of long grooves 622 are circumferentially formed on the outer side surface of the separating ring 621. The lower die block 62 is provided with circular grooves 623 corresponding to the long grooves 622. The long grooves 622 are used to dredge the excessive lubricant left on the inner wall of the housing 3, and the circular grooves 623 are used for confluence. Optionally, a recovery pipeline is externally connected to the circular grooves 623 for cleaning the accumulated lubricant inside.

[0036] As Figure 9 、 Figure 10 shown, an annular air chamber 624 is formed on the outer side of the lower die block 62 relative to the separating ring 621. A separating block 625 is arranged in the annular air chamber 624. Air pumps 626 are externally connected to both sides of the separating block 625, and air supply components 7 are arranged at intervals in the annular air chamber 624.

[0037] As Figure 12 、 Figure 13 shown, the air supply component 7 includes a second sleeve 71. A plurality of sliding grooves 711 are formed at intervals on the inner wall of the second sleeve 71. A rotating cylinder 72 is arranged in the second sleeve 71. The rotating cylinder 72 is rotatably arranged in the annular air chamber 624. A slider 721 is arranged on the upper side of the rotating cylinder 72 in cooperation with the sliding grooves 711. An air inlet 722 is formed on the lower side of the rotating cylinder 72. A second spring 73 is arranged in the rotating cylinder 72. One end of the second spring 73 is connected to the wall surface of the annular air chamber 624, and the other end of the second spring 73 is connected to a top cover 74. The top cover 74 is fixedly connected to the second sleeve 71.

[0038] Further, asFigure 14 As shown, the top cover 74 is provided with a plurality of vents 741 on its circumference, a plurality of connecting grooves 712 are provided on the upper side of the sleeve 71 at intervals, the connecting grooves 712 are staggered with the slide grooves 711, the lower module 62 cooperates with each air supply component 7 to provide corresponding circular holes 627, and the circumference of the circular holes 627 is provided with blocks 628 whose number is the same as the connecting grooves 712.

[0039] It should be noted that the air inlet 722 of the drum 72 is located in the annular air chamber 624. When air flows into the annular air chamber 624, the air flows into the drum 72 and the sleeve 71 through the air inlet 722 and is discharged from the air vent 741. The connecting groove 712 allows the block 628 to pass through.

[0040] Furthermore, a pair of deflection plates 75 are provided on the lower side of the rotating drum 72, and an electromagnetic block 629 is provided on the inner wall of the annular air chamber 624 in coordination with the deflection plate 75. The side of the deflection plate 75 facing the electromagnetic block 629 is a magnetic attraction surface, and the corresponding surface of the electromagnetic block 629 and the adjacent deflection plate 75 is an adsorption surface.

[0041] The supplementary explanation based on the above structure is as follows: when the annular air chamber 624 is fed with airflow in the positive direction, the airflow pushes the corresponding deflection plate 75 to drive the rotating drum 72 to deflect, and the sleeve 2 71 rotates synchronously, and stops after the deflection plate 75 and the corresponding electromagnetic block 629 are adsorbed. At this time, the connecting groove 712 is staggered with the block 628, and the top cover 74 is blocked by the block 628, and the sleeve 2 71 cannot move up. At the same time, the air inlet 722 is deflected to the windward side, and the airflow in the annular air chamber 624 enters from the air inlet 722, and the airflow is transported to the upper side through the vent 741, which has the effect of cleaning the impurities on the surface of the stator 2. When the annular air chamber 624 is fed with airflow in the reverse direction, the airflow pushes the corresponding deflection plate 75 to drive the rotating drum 72 to deflect in the opposite direction, and the sleeve 2 71 rotates synchronously, and stops after the deflection plate 75 and the corresponding electromagnetic block 629 are adsorbed. At this time, the connecting groove 712 corresponds to the block 628, and the top cover 74 drives the sleeve 2 71 to move up under the push of the airflow. Preferably, a tension sensing module is provided at the connection between the second spring 73 and the wall of the annular air chamber 624 to detect the tension state of the second spring 73. If the stator 2 and the housing 3 are riveted in place, the upper side of the second sleeve 71 is blocked by the housing 3 and cannot move upward, otherwise the second spring 73 can be pulled upward.

[0042] like Figure 15 As shown, the limit assembly 8 includes a second cylinder 81, a knife seat 82 is provided at the driving end of the second cylinder 81, and a stop knife 83 is provided on the knife seat 82. In actual operation, a guide rail is provided between the knife seat 82 and the workbench 11 to guide the movement of the knife seat 82, and the stop knife 83 is used to clamp the surface of the shell 3 to prevent the vertical movement when the riveting mechanism is disengaged.

[0043] The specific implementation methods are as follows: Step 1: Feeding. Manually or through an external feeding mechanism, sleuth the stator 2 onto the mandrel 63 and place the housing 3 on the stator 2. Step 2: Pre-pressing. The riveting mechanism presses down the housing 3 so that the bottom part of the housing 3 contacts and connects with the outer side of the stator 2, and then the riveting mechanism stops pressing down. Step 3: Lubrication. The lubrication component 5 is activated, the sponge body 58 squeezes the housing 3 to apply lubricant, and the lubricant flows down along the inner wall of the housing 3. At the same time, the gear disk 53 controls the rotation of the sponge body 58 so that the lubricant can cover completely. Step 4: Riveting. The lubrication component 5 stops lubricating, the electric push rod 52 pulls up the sponge body 58 to a height higher than the bottom surface of the upper die ring 443, and the riveting mechanism continues to press down the housing 3 until the bottom surface of the housing 3 contacts the surface of the lower module 62. Step 5: Pressure holding. When the riveting mechanism rivets the housing 3 in place, pressure is held for 0.5 seconds. Step 6: Separation. The limiting component 8 advances towards the housing 3. After clamping the surface of the housing 3, the riveting mechanism lifts up and separates from the housing 3, and the limiting component 8 resets to release the restriction. Step 7: Detection and discharging. The air supply component 7 detects whether the housing 3 is riveted in place, marks it and then discharges it.

[0044] Specifically, after the stator 2 is sleeved on the mandrel 63 in Step 1, the air supply component 7 can be used to convey air flow to clean the impurities on its outer surface. Before the housing 3 is placed on the stator 2, the inner wall of the housing 3 can also be cleaned by the air supply component 7.

[0045] In Step 7, assuming that the air flow circulation state in the air supply component 7 is stable, the riveting state is classified as follows according to the feedback signal of the tension sensing module.

[0046] When each tension sensing module fails to detect a force signal, it indicates that the housing 3 has been riveted in place, each top cover 74 is blocked by the housing 3, and the second spring 73 is not stretched.

[0047] When each tension sensing module detects the same force signal, it indicates that the housing 3 has not been pressed down in place and there is still a certain distance from the surface of the lower module 62. At this time, the top cover 74 is pushed up by the air flow to abut against the lower side of the housing 3, and the second spring 73 is stretched by the same length. At this time, the riveting mechanism should be controlled to press down again to make it riveted in place.

[0048] When each tension sensing module detects different force signals, it indicates that the housing 3 is misaligned with the stator 2 during the pressing down process, resulting in that the housing 3 is not only not pressed down in place, but also the bottom surface heights are inconsistent. At this time, it is necessary to immediately check whether the surfaces of the housing 3 and the stator 2 are deformed or damaged.

[0049] It should be noted that in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0050] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A fully automatic adaptive DC brushless motor riveting workstation, comprising a frame (1), a riveting mechanism and a positioning mechanism, characterized in that, A workbench (11) is arranged on the frame (1), the positioning mechanism is arranged on the workbench (11), the riveting mechanism is mounted on the upper side of the positioning mechanism, the positioning mechanism comprises a lower die (6) and a group of limit assemblies (8), the lower die (6) is mounted on the workbench (11), and the limit assemblies (8) are arranged on both sides of the lower die (6); The lower mold (6) comprises a lower mold block (62), a separation ring (621) is arranged on the lower mold block (62), an annular air chamber (624) is provided on the outer side of the lower mold block (622) relative to the separation ring (621), a separation block (625) is arranged in the annular air chamber (624), air pumps (626) are respectively connected to the two sides of the separation block (625), and an air supply component (7) is arranged in the annular air chamber (624); The air supply component (7) comprises a second sleeve (71), the inner wall of the second sleeve (71) is provided with a plurality of slide grooves (711) at intervals, a rotating cylinder (72) is arranged in the second sleeve (71), the rotating cylinder (72) is rotatably arranged in the annular air chamber (624), a sliding block (721) is arranged on the upper side of the rotating cylinder (72) to cooperate with the slide groove (711), an air inlet (722) is opened on the lower side of the rotating cylinder (72), a second spring (73) is arranged in the rotating cylinder (72), one end of the second spring (73) is connected to the wall surface of the annular air chamber (624), and the other end of the second spring (73) is connected to a top cover (74), and the top cover (74) is fixedly connected to the second sleeve (71).

2. The full-automatic adaptive DC brushless motor riveting and pressing workstation according to claim 1, wherein The top cover (74) is provided with a plurality of vents (741) on its circumference, the upper side of the second sleeve (71) is provided with a plurality of connecting grooves (712) at intervals, the connecting grooves (712) and the slide grooves (711) are staggered, the lower module (62) is provided with corresponding circular holes (627) in cooperation with each of the air supply components (7), and the circular holes (627) are provided with a number of blocks (628) that is the same as the number of the connecting grooves (712) on their circumference.

3. A fully automatic adaptive DC brushless motor riveting workstation according to claim 2, characterized in that A pair of deflection plates (75) are provided on the lower side of the rotating cylinder (72); an electromagnetic block (629) is provided on the inner wall of the annular air chamber (624) in cooperation with the deflection plate (75); a side of the deflection plate (75) facing the electromagnetic block (629) is a magnetic attraction surface; and a corresponding surface of the electromagnetic block (629) and adjacent to the deflection plate (75) is an adsorption surface.

4. A fully automatic adaptive DC brushless motor riveting workstation according to claim 3, characterized in that The riveting mechanism comprises an oil cylinder (41), a fixed plate (42) and a plurality of guide rods (43), one end of the guide rod (43) is fixed on the workbench (11), and the other end of the guide rod (43) is connected to the fixed plate (42), the oil cylinder (41) is mounted on the fixed plate (42), and the driving end of the oil cylinder (41) is connected to an upper die (44), and the upper die (44) corresponds to the lower die (6).

5. A fully automatic adaptive DC brushless motor riveting workstation according to claim 4, characterized in that, The upper die (44) includes an upper die base (441), a plurality of upper die supports (442), and an upper die ring (443). The upper die supports (442) are respectively connected to the upper die base (441) and the upper die ring (443). A lubrication assembly (5) is provided on the upper die (44).

6. The full-automatic adaptive DC brushless motor riveting workstation according to claim 5, characterized in that, The lubrication assembly (5) includes a second slide plate (51). The second slide plate (51) is slidably engaged with the upper die supports (442). An electric push rod (52) is connected to the upper side of the second slide plate (51). The electric push rod (52) is fixed to the lower side of the upper die base (441). A toothed disc (53) is rotatably provided on the lower side of the second slide plate (51). A plurality of first cylinders (54) are circumferentially fixed on the surface of the toothed disc (53). A moving seat (55) is connected to the driving end of the first cylinder (54). A groove is provided at the bottom of the moving seat (55). A plurality of telescopic rods (56) are spaced apart in the groove. A connecting plate (57) is fixed to the telescopic end of the telescopic rod (56). A sponge body (58) is provided on the surface of the connecting plate (57). A lubricant chamber (551) is provided in the moving seat (55), and an oil passage (552) is provided in cooperation with each telescopic rod (56).

7. A fully automatic adaptive DC brushless motor riveting workstation according to claim 6, characterized in that, The telescopic rod (56) includes a first sleeve (561), a moving rod (562), and a first spring (563). The first sleeve (561) is a hollow structure. The moving rod (562) is slidably engaged with the first sleeve (561). The first spring (563) is provided in the first sleeve (561) and its two ends are respectively connected to the moving rod (562) and the moving seat (55). An oil passage interface (564) is provided on the moving rod (562). The end of the moving rod (562) facing the connecting plate (57) is open.

8. A fully automatic adaptive DC brushless motor riveting workstation according to claim 7, characterized in that, A tension sensing module is provided at the connection between the second spring (73) and the wall surface of the annular air chamber (624) for detecting the stretching state of the second spring (73). A pressure sensing module is provided at the connection between the first spring (563) and the moving seat (55) for detecting the telescopic state of the moving rod (562).

9. The full-automatic adaptive DC brushless motor riveting workstation according to claim 8, wherein A gear (531) is provided in cooperation with the toothed disc (53). The gear (531) is connected to a motor (59). The motor (59) is fixed to the second slide plate (51).

10. The fully automatic adaptive DC brushless motor riveting and pressing workstation according to claim 9, characterized in that, The lower die (6) further includes a lower die base (61) and a mandrel (63). The lower die block (62) is fixed to the lower die base (61). The mandrel (63) is provided at the central position of the lower die block (62).

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