CN114453506A

CN114453506A - Motor seals riveting equipment

Info

Publication number: CN114453506A
Application number: CN202210079824.7A
Authority: CN
Inventors: 吴冬庚
Original assignee: Dongguan Lihui Motor Co ltd
Current assignee: Dongguan Lihui Motor Co ltd
Priority date: 2022-01-24
Filing date: 2022-01-24
Publication date: 2022-05-10

Abstract

The invention relates to a motor sealing riveting device which comprises a bottom plate, a riveting die, a pressing-down mechanism, an ejection cylinder and a riveting driving piece, wherein the riveting die is used for positioning and fixing a motor to be processed; the riveting die comprises a motor base, a riveting component, a pressing component and a lower positioning block, wherein the pressing component is used for pre-pressing the processed motor in the radial direction, the riveting component is movably arranged on the motor base, and a riveting driving piece drives the riveting component to carry out riveting operation on the processed motor. The riveting machine can synchronously rivet and press the four riveting positions of the left side, the right side, the upper side and the lower side of the processed motor, the center position of the processed motor is adjusted through the center positioning block, the center of the processed motor is ensured to be coincided with the riveting center, and the concentricity of the front cover bearing and the rear cover bearing of the processed motor and the rotor shaft is ensured.

Description

Motor seals riveting equipment

Technical Field

The invention relates to the technical field of motor processing and assembling, in particular to a riveting die for processing a special miniature motor-automobile angle-adjusting motor seal.

Background

In the sealing process of a special micro motor-automobile angle modulation motor, a semi-finished motor front cover, a semi-finished motor rear cover and a motor metal shell are required to be riveted and fixed, a rotor shaft of the motor is positioned in the motor shell, the motor front cover and the motor rear cover are respectively provided with a front bearing and a rear bearing which are connected with the rotor shaft, four riveting positions are arranged on the metal shell in the front and at the rear and are riveted with the front cover and the rear cover respectively, because the front cover, the rear cover and the shell are split before the sealing process, in the sealing process, the motor front bearing and the rear bearing are required to be concentric with the rotor shaft in addition to riveting the motor shell, the riveting quality can be ensured, and the problems that the rotor shaft and the bearing are seriously abraded and the motor is abnormally sounded are caused. Therefore, the bearing of the front cover and the rear cover of the motor are concentric with the rotor shaft after being machined, and meanwhile, the quick riveting sealing of the motor is the key point of research and development.

Disclosure of Invention

In order to solve the defects of the prior art, the invention provides motor sealing riveting equipment, which positions a processed motor through a pressing component of a riveting mould, and ensures that the center of the processed motor is superposed with a riveting center so as to ensure that a front cover bearing and a rear cover bearing of the processed motor are concentric with a rotor shaft.

In order to achieve the purpose, the technical scheme provided by the invention is as follows: the riveting device for motor sealing comprises a bottom plate, a riveting die, a pressing mechanism, an ejection cylinder and a riveting driving piece arranged on the outer side of the riveting die, wherein the riveting die is arranged on the bottom plate and used for positioning and fixing a processed motor, the pressing mechanism is arranged above the riveting die, the pressing mechanism is used for axially pre-pressing a front cover component, a rear cover component and a shell of the processed motor which is arranged on the riveting die, the ejection cylinder is arranged below the riveting die, and the ejection cylinder is used for ejecting the motor which is subjected to riveting sealing in the riveting die from the riveting die.

The riveting die comprises a motor base, a riveting component, a pressing component and a lower positioning block, wherein a material placing hole for placing a processed motor is axially formed in the motor base, the processed motor is positioned and fixed in the material placing hole, the pressing component is arranged on the motor base, the pressing component is radially pre-pressed on the processed motor in the material placing hole, the riveting component is movably arranged on the motor base and is in transmission connection with a riveting driving component, and the riveting driving component drives the riveting component to rivet the processed motor in the material placing hole.

The riveting component comprises a cam, a pressing block and a reset spring, the cam is in transmission connection with the riveting driving piece, the cam is rotatably arranged at the upper position and the lower position of the motor base and located on the outer circumferential direction of the object placing hole, one end of the pressing block is in movable contact with the cam surface of the cam, the other end of the pressing block is provided with a pressing head for performing riveting on the riveting position of a processed motor shell, the pressing head is arranged towards the object placing hole, the reset spring is arranged between the motor base and the pressing block, the motor base is provided with a sliding groove between the cam and the object placing hole, and the pressing block moves in the sliding groove in a reciprocating mode through the cam and the reset spring.

The lower positioning block is positioned below the object placing hole, the lower positioning block is provided with a positioning groove matched with the processed motor in shape, the processed motor is pre-positioned in the object placing hole through the positioning groove, the ejection cylinder is installed below the lower positioning block, and the driving end of the ejection cylinder extends into the object placing hole.

In the technical scheme, the pressing assembly comprises a central positioning block and a pressing block, a mounting hole communicated with the object placing hole is formed in the motor base, the mounting hole is perpendicular to the object placing hole, the central positioning block and the pressing block are arranged in the mounting hole and are respectively positioned on two sides of the object placing hole, the central positioning block is fixedly connected with the motor base, and the pressing block is movably arranged in the mounting hole through a pressing cylinder; the central positioning block and the pressing block are both provided with inner arc surfaces matched with the shape of the shell of the processed motor, and the shell of the processed motor is clamped and fixed between the inner arc surfaces of the central positioning block and the pressing block.

In the technical scheme, a pressing cylinder is arranged on one side of a mounting hole of the motor base, a mounting groove is arranged on the other side of the mounting hole, the mounting groove is provided with an adjusting block connected with a central positioning block, the adjusting block is fixedly connected with the motor base and the central positioning block respectively, the adjusting block is provided with an adjusting bolt in threaded connection with the central positioning block, and the adjusting bolt is arranged in a through hole of the adjusting block in a penetrating manner; the adjusting block adjusts the distance between the inner arc surface of the central positioning block and the center of the object placing hole through an adjusting bolt; the pressing cylinder is fixed on the outer side of the motor base through a cylinder base, and the driving end of the pressing cylinder is in transmission connection with the pressing block through a cylinder connector.

In the above technical solution, an end surface of one end of the pressing block contacting the cam surface is an outer arc surface.

In the above technical scheme, the end face of the motor base is fixed with a circular cover plate, a track for rotating the cam is formed between the cover plate and the end face of the motor base, two ends of the reset spring are respectively connected with two screws, and the two screws are respectively installed on the cover plate and the pressing block.

In the above technical scheme, the motor base is provided with a set of riveting components at the upper end and the lower end respectively, the two sets of riveting components are used for performing riveting operation on two riveting positions at the upper end and the lower end of the processed motor respectively, cams of the two sets of riveting components are connected with the riveting driving piece through a connecting plate, the riveting driving piece is connected with the connecting plate through a movable joint, and the riveting driving piece is an electric cylinder or an air cylinder.

In the technical scheme, the riveting driving piece is fixed on the bottom plate, and a pressure sensor is arranged between the driving end of the riveting driving piece and the movable joint.

In the technical scheme, the movable connector comprises a first connector and a second connector, the first connector is n-shaped, the plane end of the first connector is fixed with the pressure sensor, the extending end of the first connector is pivoted with the connecting arm of the second connector, and the extending end of the second connector is pivoted with the connecting arm.

In the technical scheme, the pushing mechanism comprises a pushing cylinder, a support, a pushing plate and a guide rod, the pushing cylinder is fixed on the bottom plate through the support, the pushing cylinder is located right above the riveting die, the pushing plate is fixed at the driving end of the pushing cylinder, the pushing plate is arranged towards the object placing hole, the lower end of the guide rod is connected with the pushing plate, the guide rod is connected with the support in a sliding mode, the lower surface of the pushing plate is provided with a contact surface matched with the edge of a front cover of a processed motor, a baffle is arranged on one side of the contact surface of the pushing plate, and the pushing cylinder drives the pushing plate to move up and down.

In the above technical scheme, the upper end face and the lower end face of the motor base are both provided with annular outer steps, and the cam is provided with an inner step matched with the outer steps.

In the technical scheme, the upper part of the bottom plate is surrounded with the protective cover, one side of the protective cover is provided with the operation window, the operation window is provided with the safety grating, the lower part of the bottom plate is provided with the frame, and the lower end of the frame is provided with the trundles.

The invention has the advantages that the structure is reasonable, the design is novel, the practicability is strong, the working steps are controlled by a PLC program, and the processing process is completed automatically; the riveting die is of a centrosymmetric structure, four riveting positions of the left side, the right side, the upper side and the lower side of the processed motor are synchronously riveted, the central position of the processed motor can be adjusted through the central positioning block, the center of the processed motor is ensured to be coincided with the riveting center through the pressing assembly, and the front cover bearing and the rear cover bearing of the processed motor are ensured to be concentric with the rotor shaft; the cam is driven by a servo electric cylinder, the pressure is uniform in the riveting process, and the riveting stroke is stable; and the riveting pressure is monitored by adopting a pressure sensor, so that the reliability of riveting operation is ensured.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of the structure of the motor to be processed.

Fig. 3 is a schematic structural view of the assembly of the riveting die on the base plate.

Fig. 4 is a schematic view of an assembly structure of the riveting die and the riveting driving member.

Fig. 5 is a schematic structural view of the pressing mechanism.

Fig. 6 is an exploded view of the riveting die.

Fig. 7 is a schematic sectional structure view of the riveting die.

Fig. 8 is a schematic structural view of a motor base.

Fig. 9 is a schematic structural view of the ejection cylinder assembled on the lower positioning block.

In the figure: 1. a motor base; 11. a placing hole; 12. a chute; 13. mounting holes; 14. mounting grooves; 15. an outer step; 20. a cam surface; 21. an upper cam; 22. pressing the blocks; 23. a return spring; 24. an outer arc surface; 25. a pressure head; 26. a lower cam; 261. an inner step; 27. pressing the block; 28. a screw; 30. an intrados surface; 31. a central positioning block; 32. an adjusting block; 33. a compression block; 34. a cylinder joint; 35. a cylinder block; 36. a pressing cylinder; 4. a cover plate; 5. a servo electric cylinder; 51. a pressure sensor; 52. a first connector; 53. a second connector; 54. connecting plates; 6. a lower positioning block; 61. positioning a groove; 7. a pressing mechanism; 71. a support; 72. pressing down the air cylinder; 73. a guide bar; 74. a lower pressing plate; 75. a contact surface; 76. a baffle plate; 8. a base plate; 81. a frame; 82. a protective cover; 83. a safety grating; 84. a pressure controller; 85. a PLC and a touch screen; 86. a caster wheel; 9. a motor to be processed; 91. a front cover; 92. a rear cover; 93. a housing; 94. riveting positions; 100. and ejecting out the cylinder.

Detailed Description

Embodiments of the present invention will be described with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments provided by the present invention, belong to the protection scope of the present invention. Moreover, it should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one of ordinary skill in the art that the described embodiments of the present invention can be combined with other embodiments without conflict.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "a", "an", "a motor sealing riveting device", "the" and the like in the invention do not mean a limitation of quantity, and may mean singular or plural. The present invention relates to the terms "comprises," "comprising," "includes," "including," "has," "having" and any variations thereof, which are intended to cover non-exclusive inclusions; for example, a process, method, system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to the listed steps or elements, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. The terms "connected," "coupled," and the like in the description of the invention are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The term "plurality" as used herein means two or more. "and/or" describes an association relationship of associated objects, meaning that three relationships may exist, for example, "A and/or B" may mean: a exists alone, A and B exist simultaneously, and B exists alone. The terms "first," "second," "third," and the like in reference to the present invention are used merely to distinguish between similar objects and not necessarily to represent a particular ordering for the objects.

As shown in fig. 1, it can be seen that the riveting device of the present invention is a vertical device, the middle part is a workbench, the upper and lower parts of the workbench are a protective cover 82 and a frame 81, a riveting die is placed on the workbench, and the riveting die is in a central symmetry structure, and can rivet and press the left, right, upper and lower four riveting positions 94 of the processed motor 9 synchronously. As shown in fig. 2, the processed motor 9 is sequentially connected by a front cover 91, a housing 93, and a rear cover 92, and the housing 93 needs to be respectively press-riveted to the front cover 91 and the rear cover 92 at a riveting position 94. The riveting die can adjust the central position of the processed motor 9 and compress tightly, the center of the processed motor 9 can be ensured to coincide with the riveting center, and the bearing of the front cover 92 and the rear cover 92 of the processed motor are ensured to be concentric with the rotor shaft.

As shown in fig. 1 to 9, a motor sealing riveting device includes a bottom plate 8, a riveting die, a pressing mechanism 7, an ejection cylinder 100, and a riveting driving member disposed outside the riveting die, where the riveting die is disposed on the bottom plate 8 and fixes the processed motor 9, the pressing mechanism 7 is disposed above the riveting die, the pressing mechanism 7 is used to axially pre-press a front cover 91 assembly, a rear cover 92 assembly, and a housing of the processed motor 9 disposed on the riveting die, the ejection cylinder 100 is disposed below the riveting die, and the ejection cylinder 100 is used to eject the motor sealed by riveting in the riveting die from the riveting die.

As shown in fig. 3-4 and 6-8, the riveting die includes a motor base 1, a riveting component, a pressing component, and a lower positioning block 6, wherein the motor base 1 is axially provided with a material placing hole 11 for placing a processed motor 9, the processed motor 9 is positioned and fixed in the material placing hole 11, the pressing component is arranged on the motor base 1, the pressing component radially pre-presses the processed motor 9 in the material placing hole 11, the riveting component is movably arranged on the motor base 1, the riveting component is in transmission connection with a riveting driving component, and the riveting driving component drives the riveting component to perform riveting operation on the processed motor 9 in the material placing hole 11.

Wherein, the riveting subassembly includes the cam, the briquetting, reset spring 23, the cam is connected with the riveting driving piece transmission, the rotatable setting of cam is in motor cabinet 1, the lower position and lie in the outer circumferencial direction of putting thing hole 11, the one end of briquetting and the cam surface 20 active contact of cam, the other end of briquetting is provided with carries out the pressure head 25 of pressure riveting to processed motor 9 shell 93 riveting position 94, pressure head 25 sets up toward putting thing hole 11 direction, reset spring 23 sets up between motor cabinet 1 and briquetting, motor cabinet 1 is provided with spout 12 between cam and putting thing hole 11, the briquetting passes through cam and reset spring 23 reciprocating motion in spout 12. The sliding groove 12 is perpendicular to the object placing hole 11. The mounting hole 13 and the sliding groove 12 are arranged in the radial direction of the motor base 1.

As shown in fig. 9, the lower positioning block 6 is located below the object placing hole 11, the lower positioning block 6 is provided with a positioning groove 61 matching with the shape of the processed motor 9, the processed motor 9 is positioned in the object placing hole 11 through the positioning groove 61, the ejection cylinder 100 is installed below the lower positioning block 6, and the driving end of the ejection cylinder 100 extends into the object placing hole 11.

As shown in fig. 6-7, the pressing assembly includes a central positioning block 31 and a pressing block 33, a mounting hole 13 communicated with the object placing hole 11 is provided in the motor base 1, the mounting hole 13 is perpendicular to the object placing hole 11, the central positioning block 31 and the pressing block 33 are provided in the mounting hole 13 and located at two sides of the object placing hole 11, the central positioning block 31 is fixedly connected with the motor base 1, and the pressing block 33 is movably provided in the mounting hole 13 through a pressing cylinder 36; the central positioning block 31 and the pressing block 33 are both provided with an inner arc surface 30 matched with the shape of the shell 93 of the processed motor 9, and the shell 93 of the processed motor 9 is clamped and fixed between the central positioning block 31 and the inner arc surface 30 of the pressing block 33.

The pressing cylinder 36 is fixed on the outer side of the motor base 1 through the cylinder base 35, the driving end of the pressing cylinder 36 is in transmission connection with the pressing block 33 through a cylinder connector 34, the pressing block 33 slides along the mounting hole 13, when the machined motor 9 needs to be clamped, the pressing cylinder 36 pushes the pressing block 33 to move towards the central positioning block 31, the machined motor 9 is clamped between the pressing block 33 and the central positioning block 31, the pressing block 33 and the central positioning block 31 are matched with the outer side wall of a shell 93 of the machined motor 9 through the inner arc surface 30, and the machined motor 9 is guaranteed not to shake between the pressing block 33 and the central positioning block 31.

The motor base 1 is provided with a pressing cylinder 36 on one side of the mounting hole 13, the other side is provided with a mounting groove 14, the mounting groove 14 is provided with an adjusting block 32 connected with a central positioning block 31, the adjusting block 32 is respectively fixedly connected with the motor base 1 and the central positioning block 31, the adjusting block 32 is provided with an adjusting bolt in threaded connection with the central positioning block 31, and the adjusting bolt is arranged in a through hole of the adjusting block 32 in a penetrating manner; the adjusting block 32 adjusts the distance between the inner arc surface 30 of the central positioning block 31 and the center of the object placing hole 11 through an adjusting bolt; the pressing air cylinder 36 is fixed on the outer side of the motor base 1 through an air cylinder base 35, and the driving end of the pressing air cylinder 36 is in transmission connection with the pressing block 33 through an air cylinder connector 34.

As shown in fig. 6, the end surfaces of the upper presser 22 and the cam surface 20 of the upper cam 21 and the end surfaces of the lower presser 27 and the cam surface 20 of the lower cam 26 that contact each other are the outer arc surfaces 24. The cam surface 20 is an arc surface, the extrados 24 of the upper and lower pressing blocks 27 ensure that the pressing block and the rotating cam surface 20 are always in a contact state, the farthest position of the cam surface 20 from the axis and the nearest position from the axis are two moving nodes of the pressing block, when the extrados 24 of the upper and lower pressing blocks 27 contacts with the farthest position of the cam surface 20 from the axis, the pressing head 25 of the upper and lower pressing blocks 27 is far away from the processed motor 9, so that the processed motor 9 can be taken and placed from the object placing hole 11, and when the extrados 24 of the upper and lower pressing blocks 27 contacts with the cam surface 20 from the nearest position from the axis, the pressing head 25 of the upper and lower pressing blocks 27 is already contacted with the processed motor 9 and is pressed and riveted. The outer arc surfaces 24 of the upper and lower pressing blocks 27 are in the process of carrying out riveting action on the upper and lower pressing blocks 27 from the farthest position to the nearest position of the cam surface 20 from the off-axis center, and the resetting process is in the process of carrying out riveting action on the outer arc surfaces 24 of the upper and lower pressing blocks 27 from the nearest position to the off-axis center to the farthest position of the cam surface 20 from the off-axis center.

The upper end face of the motor base 1 is fixed with a circular cover plate 4, a track for rotating the upper cam 21 is formed between the cover plate 4 and the end face of the motor base 1, two ends of a return spring 23 for driving the upper cam 21 to reset are respectively connected with two screws 28, and the two screws 28 are respectively installed on the cover plate 4 and a pressing block.

The motor base 1 is provided with a set of riveting components at the upper end and the lower end, the two sets of riveting components respectively carry out riveting operation on two riveting positions 94 at the upper end and the lower end of the processed motor 9, cams of the two sets of riveting components are connected with a riveting driving piece through a connecting plate 54, and the riveting driving piece is connected with the connecting plate 54 through a movable joint. The two groups of riveting components are respectively an upper riveting component and a lower riveting component, the cam surface 20 of the upper cam 21 of the upper riveting component drives the upper pressing block 22 to rivet and press the upper side riveting position 94 of the processed motor 9, and the cam surface 20 of the lower cam 26 of the lower riveting component drives the lower pressing block 27 to rivet and press the lower side riveting position 94 of the processed motor 9.

As shown in fig. 6, the upper and lower end surfaces of the motor base 1 are both provided with annular outer steps 15, the cam is provided with inner steps 261 matching with the outer steps 15, and the upper and lower cams 26 and the motor base 1 are positioned by the steps, so that the upper and lower cams 26 rotate relative to the axis of the motor base 1.

The riveting driving piece is an electric cylinder or an air cylinder. In the embodiment, the driving member adopts an electric cylinder. The upper cam 26 and the lower cam 26 are driven to rotate by the linear torque of the electric cylinder through the movable joint, the servo electric cylinder 5 is adopted by the specific electric cylinder, the pressure in the riveting process is uniform, the riveting stroke is stable, and the pressure sensor 51 is arranged between the movable joint and the servo electric cylinder 5 to monitor the riveting pressure and ensure the reliability of the riveting operation.

As shown in fig. 6, the indenter 25 of the upper pressing block 22 and the lower pressing block 27 have different structures, specifically, the middle of the end of the indenter 25 of the upper pressing block 22 protrudes in a V shape, and the middle of the end of the indenter 25 of the lower pressing block 27 is recessed in a V shape.

The upper cam 21 and the lower cam 26 are connected together by the connecting plate 54, so that the riveting die performs riveting operation on the upper and lower riveting positions 94 of the processed motor 9 synchronously.

As shown in fig. 3-4, the rivet driver is fixed on the bottom plate 8, and a pressure sensor 51 is arranged between the driving end of the rivet driver and the movable joint. The movable connector comprises a first connector 52 and a second connector 53, the first connector 52 is in a reversed U shape, the plane end of the first connector 52 is fixed with the pressure sensor 51, the extending end of the first connector 52 is pivoted with the connecting arm of the second connector 53, and the extending end of the second connector 53 is pivoted with the connecting arm.

As shown in fig. 5, the pressing mechanism 7 includes a pressing cylinder 72, a bracket 71, a pressing plate 74, and a guide rod 73, the pressing cylinder 72 is fixed on the bottom plate 8 through the bracket 71, the pressing cylinder 72 is located right above the riveting die, the pressing plate 74 is fixed at a driving end of the pressing cylinder 72, the pressing plate 74 is disposed toward the object placing hole 11, a lower end of the guide rod 73 is connected with the pressing plate 74, the guide rod 73 is slidably connected with the bracket 71, a contact surface 75 matched with an edge of a front cover 91 of the processed motor 9 is disposed on a lower surface of the pressing plate 74, a baffle 76 is disposed on one side of the contact surface 75 of the pressing plate 74, and the pressing cylinder 72 drives the pressing plate 74 to move up and down.

As shown in fig. 1, a protective cover 82 is provided around the upper portion of the bottom plate 8, an operation window is provided on one side of the protective cover 82, the operation window is provided with a safety light barrier 83, a frame 81 is provided on the lower portion of the bottom plate 8, and casters 86 are provided on the lower end of the frame 81. The bottom plate 8 is also provided with a pressure controller 84, a PLC and a touch screen 85, the pressure controller 84 and the pressure sensor 51, and the pressure controller 84 is used for monitoring the riveting pressure; the PLC and the touch screen 85 are used for controlling the machine action and setting working parameters.

In the present embodiment, the lower end surface of the motor base 1 is fixed to the bottom plate 8, the bottom plate 8 functions as the cover plate 4, the bottom plate 8 can be regarded as the bottom side cover plate 4, and the lower cam 26 rotates between the bottom and the lower end surface of the motor base 1. The shape of the bottom plate 8 is not important, the bottom plate 8 of the present embodiment is square, the bottom plate 8 is large, the motor base 1 and the driving member are mounted on the bottom plate 8 together, the lower positioning block 6 is mounted on the lower portion of the bottom plate 8, and the screw 28 on the side of the motor base 1 driving the lower pressing block 27 to reset is mounted on the bottom plate 8.

The motor base 1 is used for fixing the motor 9 to be processed, the upper and lower cams 26 are used for driving the upper and lower press blocks 27, the central positioning block 31 is used for centering the motor 9 to be processed, the position of the central positioning block 31 can be adjusted according to the size of the motor 9 to be processed, and the pressing block 33 is used for pre-pressing the motor 9 to be processed.

The riveting and pressing equipment comprises the working steps that 1, an operator puts a processed motor 9 into a motor base 1, the processed motor 9 is positioned in a positioning groove 61, and a starting button is pressed. 2. The machine starts to operate, the pressing air cylinder 36 starts to operate, and the pressing air cylinder 36 presses the processed motor 9 from the radial direction by pushing the pressing block 33. 3. The lower pressure cylinder 72 starts to operate, and the lower pressure cylinder pushes the lower pressure plate 74 to descend so as to press the processed motor 9 in the axial direction. 4. The servo electric cylinder 5 pushes the upper and lower cams 26 to set positions, the cams drive the upper and lower press blocks 27 to rivet the housing 93 of the processed motor 9 at riveting positions 94, after riveting is completed, the electric cylinder pushes the upper and lower cams 26 to reset, and the upper and lower press blocks 27 are reset through the reset springs 23. 5. The ejection cylinder 100 ejects the processed motor 9 upward. 6. The machine prompts the completion of the operation, and the operator takes out the processed motor 9, changes to the next processed motor 9, and repeats the above actions.

The invention has reasonable structure, novel design and strong practicability, the working steps are controlled by a PLC program, and the processing process is fully automatically completed; the riveting die is of a centrosymmetric structure, four riveting positions 94 on the left side, the right side, the upper side and the lower side of the processed motor 9 are synchronously riveted, the central position of the processed motor 9 can be adjusted through the central positioning block 31, the center of the processed motor 9 is ensured to be coincided with the riveting center through the pressing assembly, and the bearing of a front cover 92 and a rear cover 92 of the processed motor are ensured to be concentric with a rotor shaft; the servo electric cylinder 5 is adopted to drive the cam, the pressure is uniform in the riveting process, and the riveting stroke is stable; the pressure sensor 51 is used for monitoring the riveting pressure, so that the reliability of riveting operation is ensured.

The technical scope of the present invention is not limited to the above embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.

Claims

1. A motor sealing riveting device is characterized by comprising a bottom plate, a riveting die, a pressing mechanism, an ejection cylinder and a riveting driving piece arranged on the outer side of the riveting die, wherein the riveting die is arranged on the bottom plate and used for positioning and fixing a processed motor;

the riveting die comprises a motor base, a riveting component, a pressing component and a lower positioning block, wherein a material placing hole for placing a processed motor is axially formed in the motor base, the processed motor is positioned and fixed in the material placing hole, the pressing component is arranged on the motor base and is used for radially pre-pressing the processed motor in the material placing hole, the riveting component is movably arranged on the motor base and is in transmission connection with a riveting driving component, and the riveting driving component drives the riveting component to rivet and press the processed motor in the material placing hole;

the riveting component comprises a cam, a pressing block and a return spring, the cam is in transmission connection with the riveting driving piece, the cam is rotatably arranged at the upper position and the lower position of the motor base and is positioned in the outer circumferential direction of the object placing hole, one end of the pressing block is in movable contact with the cam surface of the cam, the other end of the pressing block is provided with a pressing head for riveting the riveting position of the shell of the processed motor, the pressing head is arranged towards the object placing hole, the return spring is arranged between the motor base and the pressing block, a sliding groove is arranged between the cam and the object placing hole of the motor base, and the pressing block reciprocates in the sliding groove through the cam and the return spring;

2. The motor seal riveting device as claimed in claim 1, wherein the pressing assembly comprises a central positioning block and a pressing block, a mounting hole communicated with the object placing hole is formed in the motor base, the mounting hole is perpendicular to the object placing hole, the central positioning block and the pressing block are arranged in the mounting hole and located on two sides of the object placing hole respectively, the central positioning block is fixedly connected with the motor base, and the pressing block is movably arranged in the mounting hole through a pressing cylinder; the central positioning block and the pressing block are both provided with inner arc surfaces matched with the shape of the shell of the processed motor, and the shell of the processed motor is clamped and fixed between the inner arc surfaces of the central positioning block and the pressing block.

3. The motor seal riveting device as claimed in claim 2, wherein the motor base is provided with a pressing cylinder on one side of the mounting hole, and is provided with a mounting groove on the other side, the mounting groove is provided with an adjusting block connected with the central positioning block, the adjusting block is respectively and fixedly connected with the motor base and the central positioning block, the adjusting block is provided with an adjusting bolt in threaded connection with the central positioning block, and the adjusting bolt is inserted into a through hole of the adjusting block; the adjusting block adjusts the distance between the inner arc surface of the central positioning block and the center of the object placing hole through an adjusting bolt; the pressing cylinder is fixed on the outer side of the motor base through a cylinder base, and the driving end of the pressing cylinder is in transmission connection with the pressing block through a cylinder connector.

4. The motor sealing riveting device of claim 3, wherein the end face of the end of the pressing block contacting the cam surface is an outer arc surface.

5. The motor sealing riveting device of claim 4, wherein a cover plate is fixed on the end surface of the motor base, a track for the rotation of the cam is formed between the cover plate and the end surface of the motor base, two screws are respectively connected to two ends of the return spring, and the two screws are respectively mounted on the cover plate and the pressing block.

6. The motor sealing riveting device of claim 5, wherein the motor base is provided with a set of riveting components at the upper end and the lower end, the two sets of riveting components respectively perform riveting operation on two riveting positions at the upper end and the lower end of the motor to be processed, the cams of the two sets of riveting components are connected with the riveting driving member through a connecting plate, the riveting driving member is connected with the connecting plate through a movable joint, and the riveting driving member is an electric cylinder or an air cylinder.

7. The motor sealing riveting device of claim 6, wherein the riveting driving piece is fixed on the bottom plate, and a pressure sensor is arranged between the driving end of the riveting driving piece and the movable joint.

8. The motor sealing riveting device as claimed in claim 7, wherein the movable joint comprises a first joint and a second joint, the first joint is n-shaped, the planar end of the first joint is fixed with the pressure sensor, the extending end of the first joint is pivoted with the connecting arm of the second joint, and the extending end of the second joint is pivoted with the connecting arm.

9. The motor sealing riveting device according to claim 8, wherein the pressing mechanism comprises a pressing cylinder, a support, a pressing plate and a guide rod, the pressing cylinder is fixed on the bottom plate through the support, the pressing cylinder is located right above the riveting die, the pressing plate is fixed at the driving end of the pressing cylinder, the pressing plate is arranged towards the object placing hole, the lower end of the guide rod is connected with the pressing plate, the guide rod is connected with the support in a sliding manner, a contact surface matched with the edge of a front cover of a processed motor is arranged on the lower surface of the pressing plate, a baffle is arranged on one side of the contact surface of the pressing plate, and the pressing cylinder drives the pressing plate to move up and down.

10. The motor sealing riveting equipment as claimed in claim 9, wherein the upper and lower end faces of the motor base are provided with annular outer steps, and the cam is provided with inner steps matched with the outer steps.