Riveting device for assembling automobile motor

Abstract

The invention relates to the technical field of motor assembling, in particular to a riveting device for automobile motor assembling, which comprises a base, a rotating motor, a rotating table, a riveting roller, a driving assembly, a pressing assembly and a limiting assembly.When the riveting device is used, an automobile motor is placed on the rotating table and positioned, a to-be-assembled end cover is placed on the pressing assembly, then the pressing assembly is started, and the riveting roller is driven by the driving assembly; the rotating table moves downwards, the end cover is pressed on the automobile motor, the rotating motor is started, and the pressed automobile motor and end cover combination body is driven by the rotating table to rotate at a constant speed; meanwhile, the driving assembly pushes the riveting roller to horizontally feed, so that riveting bulges on the peripheral side of the riveting roller are in contact with a preset riveting part at the bottom of the outer edge of the rotating end cover; along with the proceeding of rotation, under the continuous pressure of the driving assembly, the riveting protrusions of the riveting rolling wheels conduct continuous and uniform rolling on the edge of the end cover, so that the end cover material generates plastic deformation and is buckled in a corresponding structure of the automobile motor shell.

Description

Technical Field

[0001] This invention relates to the field of motor assembly technology, and in particular to a riveting device for assembling automotive motors. Background Technology

[0002] In the production and assembly process of automotive motors, the end cap and the motor housing usually need to be fastened together by riveting.

[0003] Traditional assembly methods rely on operators using manual or pneumatic tools to hammer or punch the bottom edge of the end cap to deform it before riveting it to the motor. This manual riveting method is not only labor-intensive and inefficient, but the riveting quality is also highly dependent on the operator's experience and skill. It is prone to problems such as uneven riveting force, incomplete riveting, or excessive deformation, resulting in poor product consistency and quality risks such as oil leakage and abnormal noise. Summary of the Invention

[0004] The purpose of this invention is to provide a riveting device for assembling automotive motors, which solves the problems of low assembly efficiency, poor riveting quality consistency, and complex and costly equipment in existing automotive motor technologies.

[0005] To achieve the above objectives, the present invention provides a riveting device for assembling an automotive motor, comprising a base, a rotary motor, a rotary table, a riveting roller, a drive assembly, a clamping assembly, and a limiting assembly. The rotary motor is connected to the base and located on one side of the base. The rotary table is disposed on the rotary motor and connected to the output end of the rotary motor. The drive assembly is disposed on the base and located on one side of the base. The riveting roller is rotatably disposed on the drive assembly. The drive assembly is used to drive the riveting roller to move horizontally. The riveting roller has a riveting protrusion disposed on the periphery of the riveting roller. The clamping assembly is used to clamp the end cap to be assembled. The limiting assembly is disposed on the base and is used to limit the assembly of the end cap.

[0006] The drive assembly includes a rotary clamping cylinder and a first mounting base. The rotary clamping cylinder is connected to the base and located on one side of the base. The first mounting base is rotatably connected to the riveting roller and connected to the output end of the rotary clamping cylinder.

[0007] The drive assembly further includes a first limiting seat, which is fixedly connected to the base and slidably connected to the first mounting seat, and is sleeved on the first mounting seat.

[0008] The rotating platform has two positioning protrusions on the side away from the rotating motor, which are used to position the car motor to be assembled on the rotating platform.

[0009] The clamping assembly includes a bracket, a first cylinder, and a clamping seat. The bracket is disposed on one side of the base; the first cylinder is disposed on the bracket; and the clamping seat is connected to the output end of the first cylinder.

[0010] The clamping seat includes a connecting seat and a rotating seat. The connecting seat is disposed on the first cylinder and connected to the output end of the first cylinder. The rotating seat is rotatably connected to the connecting seat and is located on the side of the connecting seat close to the rotary table.

[0011] The rotating seat has a detection through hole, which is disposed on the side wall of the rotating seat and extends through the rotating seat.

[0012] This invention discloses a riveting device for assembling an automotive motor. In use, the automotive motor is placed on the rotary table and positioned. Then, the end cap to be assembled is placed on the clamping assembly, with the center of the end cap aligned with the center of the automotive motor. The clamping assembly then activates, moving downwards to press the end cap firmly onto the automotive motor, completing axial positioning and pre-tightening. Subsequently, the limiting assembly activates to radially limit the end cap. Once preparation is complete, the rotary motor starts, driving the clamped automotive motor and end cap assembly to rotate at a constant speed via the rotary table. Simultaneously, the driving assembly pushes the riveting rollers horizontally, causing the riveting protrusions on their periphery to align with the pre-set riveting points on the bottom of the rotating end cap's outer edge. Contact at the riveting point; as rotation proceeds, under the continuous pressure of the drive assembly, the riveting rollers continuously and uniformly roll the riveting protrusions against the edge of the end cap, causing the end cap material to undergo plastic deformation and snap into the corresponding structure of the automotive motor housing, thereby completing the continuous riveting operation in the entire circumferential direction; after riveting is completed, the drive assembly drives the riveting rollers to retract, the rotary motor stops, and the limiting assembly and the clamping assembly are reset in sequence, allowing the assembled motor assembly to be removed; throughout the process, the continuous rotation of the rotary table combined with the radial feed of the riveting rollers achieves efficient, continuous, and high-quality automated riveting assembly, effectively ensuring the uniformity and consistency of the riveting force in the circumferential direction. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1This is a schematic diagram of the overall structure of the riveting device for assembling an automotive motor according to the first embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram of the installation structure of the riveting roller according to the first embodiment of the present invention.

[0016] Figure 3 This is the first embodiment of the present invention. Figure 2 Enlarged view of point A.

[0017] Figure 4 This is a schematic diagram of the positioning protrusion in the first embodiment of the present invention.

[0018] Figure 5 This is a schematic diagram of the clamping seat according to the second embodiment of the present invention.

[0019] Figure 6 This is a schematic diagram of the limiting component according to the second embodiment of the present invention.

[0020] Figure 7 This is a schematic diagram of the installation structure of the ball-head plunger according to the third embodiment of the present invention.

[0021] In the diagram: 101-base, 102-rotary motor, 103-rotary table, 104-riveting roller, 105-drive assembly, 106-clamping assembly, 107-limiting assembly, 108-end cap, 109-automotive motor, 110-rotary clamping cylinder, 111-first mounting seat, 112-first limiting seat, 113-positioning protrusion, 114-riveting protrusion, 201-bracket, 202-first cylinder, 203-clamping seat, 204-connecting seat, 205-rotating seat, 206-detection through hole, 207-second cylinder, 208-second mounting seat, 209-limiting roller, 210-second limiting seat, 211-photoelectric sensor, 301-color sensor, 302-ball plunger, 303-sealing ring. Detailed Implementation

[0022] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0023] First embodiment:

[0024] Please see Figures 1 to 4 ,in Figure 1 This is a schematic diagram of the overall structure of the riveting device used for assembling automotive motors. Figure 2 This is a schematic diagram of the installation structure of the riveted roller. Figure 3 yes Figure 2 Enlarged view of point A, Figure 4 This is a schematic diagram of the positioning protrusion.

[0025] This invention provides a riveting device for assembling an automotive motor, comprising a base 101, a rotary motor 102, a rotary table 103, a riveting roller 104, a drive assembly 105, a clamping assembly 106, and a limiting assembly 107. The drive assembly 105 includes a rotary clamping cylinder 110, a first mounting seat 111, and a first limiting seat 112. The drive assembly 105 drives the riveting roller 104 to move horizontally, thereby causing the riveting protrusion 114 on it to contact the end cover 108, thereby deforming the bottom of the end cover 108 and achieving the riveting between the end cover 108 and the motor housing. The aforementioned solution can be used in the assembly of automotive motor end covers.

[0026] In this specific embodiment, the rotary motor 102 is connected to the base 101 and located on one side of the base 101. The rotary table 103 is disposed on the rotary motor 102 and connected to the output end of the rotary motor 102. The drive assembly 105 is disposed on the base 101 and located on one side of the base 101. The riveting roller 104 is rotatably disposed on the drive assembly 105. The drive assembly 105 is used to drive the riveting roller 104 to move horizontally. The riveting roller 104 has a riveting protrusion 114, which is disposed around the periphery of the riveting roller 104. The clamping assembly 106 is used to clamp the end cap 108 to be assembled. The limiting assembly 107 is disposed on the base 101 and is used to limit the assembly of the end cap 108.

[0027] In use, the car motor 109 is placed on the rotary table 103 and positioned. Then, the end cap 108 to be assembled is placed on the clamping assembly 106, at which point the center of the end cap 108 is aligned with the center of the car motor 109. Then, the clamping assembly 106 is activated, moving downwards and pressing the end cap 108 onto the car motor 109, completing the axial positioning and pre-tightening of both. Subsequently, the limiting assembly 107 is activated to radially limit the end cap 108. After preparation, the rotary motor 102 is activated, driving the clamped car motor 109 and end cap 108 assembly to rotate at a constant speed through the rotary table 103. At the same time, the drive assembly 105 pushes the riveting roller 104 horizontally, causing the riveting protrusion 114 on its periphery to align with the pre-set riveting point at the bottom of the outer edge of the rotating end cap 108. Contact at the contact point; as rotation proceeds, under the continuous pressure of the drive assembly 105, the riveting roller 104 continuously and uniformly rolls the edge of the end cover 108 with its riveting protrusion 114, causing the end cover 108 material to undergo plastic deformation and snap into the corresponding structure of the car motor 109 housing, thereby completing the continuous riveting operation in the entire circumferential direction; after riveting is completed, the drive assembly 105 drives the riveting roller 104 to retract, the rotary motor 102 stops, and the limiting assembly 107 and the clamping assembly 106 are reset in sequence, so that the assembled motor assembly can be taken out; throughout the process, the continuous rotation of the rotary table 103 combined with the radial feed of the riveting roller 104 achieves efficient, continuous, and high-quality automated riveting assembly, effectively ensuring the uniformity and consistency of the riveting force in the circumferential direction.

[0028] Furthermore, the drive assembly 105 drives the riveting roller 104 in a step-by-step feeding mode, rather than a continuous uniform feed. Specifically, after the rotary table 103 drives the workpiece to start rotating at a uniform speed, the drive assembly 105 first pushes the riveting roller 104 horizontally to feed a first set distance (e.g., one millimeter), so that the riveting protrusion 114 initially contacts and presses into the riveting part of the outer edge of the end cap 108. Subsequently, the drive assembly 105 pauses the feed, maintains the current position, and the riveting roller 104, driven by the rotary table 103, rolls and shapes the currently contacted circumferential area for a period of time. After completing this stage of rolling, the drive assembly 105 restarts, pushing the riveting roller 104 to continue horizontally feeding a second set distance (e.g., another millimeter) to increase the riveting depth, and then pauses and holds again for the next stage of rolling. This "feed-pause-hold-refeed" cycle can be repeated multiple times according to a preset program until the final required riveting depth and deformation are achieved.

[0029] The rotary clamping cylinder 110 is connected to the base 101 and located on one side of the base 101; the first mounting seat 111 is rotatably connected to the riveting roller 104 and connected to the output end of the rotary clamping cylinder 110; the rotary clamping cylinder 110 drives the first mounting seat 111 to move horizontally, thereby driving the riveting roller 104 to move horizontally, realizing the horizontal feeding of the riveting roller 104.

[0030] Secondly, the first limiting seat 112 is fixedly connected to the base 101 and slidably connected to the first mounting seat 111, and is sleeved on the first mounting seat 111; the first limiting seat 112 limits the movement of the first mounting seat 111, so that the first mounting seat 111 can only slide smoothly along a preset straight trajectory, preventing the first mounting seat and the riveting roller 104 it carries from swaying, tilting or vibrating during the movement.

[0031] Meanwhile, a positioning protrusion 113 is provided on the side of the rotary table 103 away from the rotary motor 102. There are two positioning protrusions 113, which are used to position the car motor 109 to be assembled on the rotary table 103. The shape of the positioning protrusion 113 is set according to the shape of the bottom of the car motor 109. When placing the car motor 109, the operator or robot only needs to align its bottom with the two positioning protrusions 113 and drop it down, so that the car motor 109 can obtain a certain circumferential angle and radial position on the rotary table 103, thus avoiding the car motor 109 from shifting during the riveting process.

[0032] Second embodiment:

[0033] Based on the first embodiment, please refer to Figure 5 and Figure 6 , Figure 5 This is a schematic diagram of the clamping seat in the second embodiment. Figure 6 This is a schematic diagram of the limiting component in the second embodiment. The clamping component 106 in this embodiment includes a bracket 201, a first cylinder 202, and a clamping seat 203. The clamping seat 203 includes a connecting seat 204 and a rotating seat 205. The rotating seat 205 has a detection through hole 206. The limiting component 107 includes a second cylinder 207, a second mounting seat 208, a limiting roller 209, and a second limiting seat 210.

[0034] In this specific embodiment, the bracket 201 is disposed on one side of the base 101; the first cylinder 202 is disposed on the bracket 201; and the clamping seat 203 is connected to the output end of the first cylinder 202.

[0035] The connecting seat 204 is disposed on the first cylinder 202 and connected to the output end of the first cylinder 202; the rotating seat 205 is rotatably connected to the connecting seat 204 and is located on the side of the connecting seat 204 near the rotating table 103.

[0036] The bottom of the rotating seat 205 is provided with a groove that cooperates with the end cap 108, and the end cap 108 can be inserted into the bottom of the rotating seat 205. In use, the end cap 108 is inserted into the groove at the bottom of the rotating seat 205, and then the first cylinder 202 drives the pressing seat 203 to move downward as a whole, which drives the end cap 108, which has been inserted into the groove, to fall down together until the end cap 108 contacts the upper end surface of the car motor 109 housing, which has been pre-placed on the rotating table 103 and completed its positioning. Through the rotation between the rotating seat 205 and the connecting seat 204, the rotating seat 205 can rotate synchronously with the rotation of the car motor 109 and the end cap 108.

[0037] Secondly, the rotating base 205 has a detection through hole 206, which is disposed on the side wall of the rotating base 205 and extends through the rotating base 205. A photoelectric sensor 211 is disposed on one side of the detection through hole 206. When the end cap 108 to be assembled is correctly inserted into the groove at the bottom of the rotating base 205, the light beam emitted by the photoelectric sensor 211 will be projected onto the predetermined detection area of ​​the end cap 108 through the detection through hole 206. If the end cap 108 is in the correct position, the light beam will be reflected or blocked by the surface of the end cap 108, so that the sensor receives the expected light signal change, thereby generating a detection signal indicating that "the end cap 108 is in the correct position", and transmitting the signal to the control system of the device. If the end cap 108 is missing or has not reached the correct position, the sensor will not be able to detect the expected light signal change, and the control system will determine that the feeding is abnormal and suspend subsequent operations, and at the same time trigger an alarm.

[0038] Meanwhile, the second cylinder 207 is connected to the base 101 and is located on one side of the base 101; the second mounting seat 208 is disposed on the second cylinder 207 and connected to the output end of the second cylinder 207; the limiting roller 209 is rotatably connected to the second mounting seat 208 and is located on the side of the second mounting seat 208 near the first cylinder 202.

[0039] Finally, the second limiting seat 210 is fixedly connected to the base 101 and slidably connected to the second mounting seat 208, and is sleeved on the second limiting seat 210.

[0040] Two limiting rollers 209 are provided. When the second cylinder 207 is started, it drives the second mounting base 208 to move horizontally, which in turn drives the two limiting rollers 209 to move synchronously. Before riveting, the two limiting rollers 209 are fed horizontally simultaneously under the drive of the second cylinder 207 until their outer circumferential surfaces are tightly abutting against the outer circumference of the end cover 108. During the subsequent rotational riveting process, the two limiting rollers 209 can passively rotate with the workpiece while continuously providing radial constraint force, converting sliding friction into rolling friction, which greatly reduces the resistance of radial limiting to the rotation of the workpiece and the possible surface scratches.

[0041] When using the riveting device for assembling an automotive motor according to the present invention, firstly, the automotive motor 109 housing is placed on the rotary table 103, and the automotive motor 109 is positioned by the positioning protrusion 113; then, the end cover 108 is inserted into the groove at the bottom of the rotating seat 205, and the first cylinder 202 drives the clamping seat 203 to descend, pressing the end cover 108 onto the motor housing to complete the axial pre-tightening; at the same time, the second cylinder 207 drives the two limiting rollers 209 to feed horizontally synchronously, providing radial constraint from both sides against the outer circumference of the end cover 108; after preparation, the rotating motor... Machine 102 starts, driving the workpiece assembly to rotate at a uniform speed. Simultaneously, the rotary clamping cylinder 110, according to a preset program, drives the riveting roller 104 to move radially towards the workpiece along the first limit seat 112 in a step-by-step feeding mode. This causes the riveting protrusions 114 on its periphery to contact and continuously roll against the edge of the rotating end cap 108. Under progressively increasing pressure, the riveting protrusions 114 cause uniform plastic deformation of the end cap 108 material, firmly locking it to the motor housing, completing a high-quality riveting around the entire circumference. After the operation is completed, each actuator resets sequentially, and the finished product can be removed. The entire process is highly automated. Through the precise coordination of rotation and radial feed, and the synergistic effect of the clamping, limiting, and detection components, efficient, stable, and consistent automated assembly is achieved.

[0042] Third embodiment:

[0043] Based on the first embodiment, please refer to Figure 7 , Figure 7 This is a schematic diagram of the installation structure of the ball plunger in the third embodiment. The clamping assembly 106 in this embodiment also includes a color sensor 301 and a ball plunger 302.

[0044] In this specific embodiment, the color sensor 301 is disposed on one side of the rotary table 103 and faces the end cover 108. A sealing ring 303 is disposed inside the end cover 108. The color sensor 301 is used to detect whether the sealing ring 303 is placed in place. If the characteristic color of the sealing ring 303 is not detected, the control system will determine an abnormality and interrupt the riveting process.

[0045] The ball-head plunger 302 is connected to the rotating seat 205 and is disposed on the rotating seat 205. The ball-head end of the ball-head plunger 302 elastically abuts against the outer circumferential surface of the end cover 108 to circumferentially fix the end cover 108 and prevent it from falling off the rotating seat 205.

[0046] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art will understand that all or part of the processes for implementing the above embodiments and equivalent variations made in accordance with the claims of this application are still within the scope of this application.

Claims

1. A riveting device for assembling an automotive motor, characterized in that, The assembly includes a base, a rotary motor, a rotary table, riveting rollers, a drive assembly, a clamping assembly, and a limiting assembly. The rotary motor is connected to the base and located on one side of the base. The rotary table is mounted on the rotary motor and connected to its output end. The drive assembly is mounted on the base and located on one side of the base. The riveting rollers are rotatably mounted on the drive assembly and are used to drive the riveting rollers to move horizontally. The riveting rollers have riveting protrusions located around their periphery. The clamping assembly is used to clamp the end caps to be assembled. The limiting assembly is mounted on the base and is used to limit the position of the assembled end caps.

2. The riveting device for assembling an automotive motor as described in claim 1, characterized in that, The drive assembly includes a rotary clamping cylinder and a first mounting base. The rotary clamping cylinder is connected to the base and located on one side of the base. The first mounting base is rotatably connected to the riveting roller and connected to the output end of the rotary clamping cylinder.

3. The riveting device for assembling an automotive motor as described in claim 2, characterized in that, The drive assembly further includes a first limiting seat, which is fixedly connected to the base and slidably connected to the first mounting seat, and is sleeved on the first mounting seat.

4. The riveting device for assembling an automotive motor as described in claim 1, characterized in that, The rotary table has two positioning protrusions on the side away from the rotary motor, which are used to position the car motor to be assembled on the rotary table.

5. The riveting device for assembling an automotive motor as described in claim 1, characterized in that, The clamping assembly includes a bracket, a first cylinder, and a clamping seat. The bracket is disposed on one side of the base; the first cylinder is disposed on the bracket; and the clamping seat is connected to the output end of the first cylinder.

6. The riveting device for assembling an automotive motor as described in claim 5, characterized in that, The clamping seat includes a connecting seat and a rotating seat. The connecting seat is disposed on the first cylinder and connected to the output end of the first cylinder. The rotating seat is rotatably connected to the connecting seat and is located on the side of the connecting seat close to the rotary table.

7. The riveting device for assembling an automotive motor as described in claim 6, characterized in that, The rotating seat has a detection through hole, which is disposed on the side wall of the rotating seat and extends through the rotating seat.

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