Automatic riveting equipment for motor spindle and casing

Abstract

The application discloses a kind of automatic riveting and pressing equipment of motor main shaft and shell, comprising: shell feeding device, main shaft feeding device and riveting and pressing device, shell feeding device and main shaft feeding device are respectively arranged around riveting and pressing device, riveting and pressing device is provided with riveting and pressing area, shell feeding device is used to move and send shell to riveting and pressing area, and main shaft feeding device is used to move and send main shaft to riveting and pressing area, riveting and pressing device is used to riveting and pressing operation on the main shaft and shell on riveting and pressing area.The application can realize the automatic feeding, alignment, positioning and riveting of motor main shaft and shell, and can greatly improve production efficiency and reduce production cycle;By riveting and pressing mode instead of existing welding and threaded connection assembly mode, the assembly quality of motor main shaft and shell can be improved, in addition, through automatic control, the error of manual operation is eliminated, so that the stability and accuracy of riveting quality can be guaranteed.

Description

Technical Field

[0001] This invention relates to the field of motor manufacturing technology, and in particular to an automatic riveting device for motor spindle and housing. Background Technology

[0002] An electric motor is a drive device that converts electrical energy into mechanical energy and is widely used in modern industry. In the manufacturing process of an electric motor, the rotor shaft needs to be connected and assembled with the housing. The traditional way to connect the shaft and the housing is by threaded connection or welding. However, both threaded connection and welding have their own disadvantages. For example, using threaded connection is not only slow in assembly efficiency, but also the threaded connection is prone to loosening and falling off after long-term use. On the other hand, welding is prone to deformation of the shaft or housing due to high temperature operation. In addition, large deviations in assembly dimensions are prone to occur during the welding process, resulting in poor assembly quality.

[0003] In view of the above, an automatic riveting device for the motor spindle and the housing is proposed. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an automatic riveting device for motor spindle and housing that can improve the assembly efficiency and assembly quality of motor spindle and housing.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] An automatic riveting device for a motor spindle and a motor housing includes: a housing feeding device, a spindle feeding device, and a riveting device. The housing feeding device and the spindle feeding device are respectively arranged around the riveting device. The riveting device is provided with a riveting area. The housing feeding device is used to transfer the motor housing to the riveting area, and the spindle feeding device is used to transfer the spindle to the riveting area. The riveting device is used to perform a riveting operation on the spindle and the motor housing in the riveting area.

[0007] In one embodiment, the housing feeding device includes a housing feeding tray and a housing feeding module. The housing feeding tray and the housing feeding module are respectively located on one side of the riveting device. The housing feeding tray is used to vibrate and feed the housing, and the housing feeding module is used to transfer the housing on the housing feeding tray to the riveting area.

[0008] In one embodiment, the housing feeding tray includes a feeding tray body and a discharge limiting member. The discharge limiting member has a discharge limiting channel. The feeding tray body is provided with a hopper. One end of the discharge limiting member is connected to the feeding tray body so that the discharge limiting channel communicates with the hopper. The other end of the discharge limiting member extends toward the housing feeding module.

[0009] In one embodiment, the discharge limiting component further includes a discharge limiting strip and a discharge stop block. The discharge limiting channel is opened on the discharge limiting strip, and the discharge stop block is disposed on one end of the discharge limiting strip near the housing feeding module. The discharge stop block is used to stop and limit the housing.

[0010] In one embodiment, a limiting groove is provided on the discharge stop block, the limiting groove is connected to the discharge limiting channel, and the limiting groove is used to stop and limit the machine housing.

[0011] In one embodiment, the limiting groove has a "U" shaped structure.

[0012] In one embodiment, the housing feeding module includes a fixed frame, a housing lateral displacement component, a housing lifting displacement component, and a housing suction component. The fixed frame is located on one side of the riveting device. The housing lateral displacement component is disposed on the fixed frame. The housing lifting displacement component is connected to the housing lateral displacement component. The housing suction component is connected to the housing lifting displacement component, and the suction end of the housing suction component is located above the discharge stop block. The housing suction component is used to suction and fix the housing located on the discharge stop block. The housing lifting displacement component is used to drive the housing suction component to move up and down. The housing lateral displacement component is used to drive the housing lifting displacement component to move laterally, so that the housing suction component reciprocates between the discharge stop block and the riveting area.

[0013] In one embodiment, the housing lateral displacement component includes a housing lateral guide plate and a housing lateral cylinder. The housing lateral guide plate is disposed on the fixed frame, and the housing lifting displacement component is slidably disposed on the housing lateral guide plate. The housing lateral cylinder is connected to the housing lifting displacement component, and the housing lateral cylinder is used to drive the housing lifting displacement component to perform lateral displacement movement along the housing lateral guide plate.

[0014] In one embodiment, the housing lifting displacement component includes a housing lifting guide plate and a housing lifting cylinder. The housing lifting guide plate is slidably disposed on the housing transverse guide plate, and the housing adsorption component is slidably disposed on the housing lifting guide plate. The housing lifting cylinder is connected to the housing adsorption component, and the housing lifting cylinder is used to drive the housing adsorption component to move up and down along the housing lifting guide plate.

[0015] In one embodiment, the housing adsorption component includes a housing sliding plate and a housing adsorption plate. The housing sliding plate is slidably disposed on the housing lifting guide plate, and the housing adsorption plate is disposed on the side of the housing sliding plate facing the discharge stop block. The housing adsorption plate is used to adsorb and fix the housing on the discharge stop block.

[0016] Compared with the prior art, the present invention has at least the following advantages:

[0017] 1. The automatic riveting equipment for motor spindle and housing of the present invention, by setting up a housing feeding device, a spindle feeding device and a riveting device, can automatically feed the housing through the housing feeding device, automatically feed the spindle through the spindle feeding device, and automatically rivet the housing and spindle through the riveting device. This enables automatic feeding, alignment, positioning and riveting of the motor spindle and housing, thereby greatly improving production efficiency and reducing the production cycle.

[0018] 2. The automatic riveting equipment for motor spindle and housing of the present invention, by setting up housing feeding device, spindle feeding device and riveting device, can replace the existing welding and threaded connection assembly methods by riveting, thereby improving the assembly quality of motor spindle and housing. In addition, through automatic control, the error of manual operation is eliminated, thereby ensuring the stability and accuracy of riveting quality. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below.

[0020] Figure 1 This is a schematic diagram of the automatic riveting device for the motor spindle and the housing according to an embodiment of the present invention;

[0021] Figure 2 for Figure 1 A schematic diagram of the structure of the casing feeding device in the middle;

[0022] Figure 3 for Figure 1 A schematic diagram of the main shaft feeding device in the middle;

[0023] Figure 4 for Figure 3 A schematic diagram of the main spindle loading device removing the main spindle loading robot.

[0024] Figure 5 for Figure 3 A schematic diagram of the main shaft feeding device removing the main shaft discharge plate;

[0025] Figure 6 for Figure 1 A schematic diagram of the riveting device in the riveting state;

[0026] Figure 7 for Figure 6 A schematic diagram of the riveting device in a non-riveting state;

[0027] Figure 8 for Figure 7 A partially enlarged structural diagram of point A of the riveting device. Detailed Implementation

[0028] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the accompanying drawings.

[0029] Please see Figures 1-8 As shown, an automatic riveting device 10 for a motor spindle and a housing includes: a housing feeding device 100, a spindle feeding device 200, and a riveting device 300. The housing feeding device 100 and the spindle feeding device 200 are respectively arranged around the riveting device 300. The riveting device 300 is provided with a riveting area. The housing feeding device 100 is used to transfer the housing to the riveting area, and the spindle feeding device 200 is used to transfer the spindle to the riveting area. The riveting device 300 is used to perform riveting operations on the spindle and the housing in the riveting area.

[0030] It should be noted that the motor is mainly composed of a rotor and a stator. The rotor includes a main shaft 21 and a housing 22. The traditional way to assemble the main shaft and the housing is by threaded connection or welding. Threaded connection is prone to loosening and falling off after long-term use, while welding is prone to rotor deformation due to high temperature. At the same time, the welding process is also prone to large deviations in assembly dimensions. In addition, most of the existing methods for assembling the motor main shaft and housing are semi-automated, that is, they require manual assistance in feeding. This method is not only slow in assembly efficiency, but also prone to large deviations in assembly dimensions. Therefore, this invention, by setting up a housing feeding device 100 and a spindle feeding device 200, realizes automatic feeding, alignment, and positioning of the motor spindle and the housing. Through the riveting device 300, it realizes automatic riveting operation, thereby reducing manual intervention and significantly improving production efficiency. At the same time, through automatic control, it can also eliminate errors caused by manual operation, thereby ensuring the stability and accuracy of riveting quality. In addition, since riveting does not require a high-temperature environment, compared with welding, it can avoid rotor deformation or damage caused by heat. At the same time, the riveting method can improve the firmness between the two riveted parts, provide higher strength and durability, reduce the problem of loosening and falling off, and improve the assembly quality of the motor spindle and the housing.

[0031] Please see Figure 2 As shown, a housing feeding device 100 includes a housing feeding tray 110 and a housing feeding module 120. The housing feeding tray 110 and the housing feeding module 120 are respectively located on one side of the riveting device 300. The housing feeding tray 110 is used to vibrate and feed the housing, and the housing feeding module 120 is used to transfer the housing on the housing feeding tray 110 to the riveting area. By continuously feeding the housing through the housing feeding tray 110 and then transferring the housing to the riveting area on the riveting device 300 through the housing feeding module 120 to await the riveting operation, the automated feeding operation of the housing is realized.

[0032] Specifically, the housing feeding tray 110 includes a feeding tray body 111 and a discharge limiting member 112. The discharge limiting member 112 is provided with a discharge limiting channel. The feeding tray body 111 is provided with a hopper 111a. One end of the discharge limiting member 112 is connected to the feeding tray body 111 so that the discharge limiting channel communicates with the hopper 111a. The other end of the discharge limiting member 112 extends toward the housing feeding module 120. The inner cavity of the hopper 111a on the feeding tray body 111 has a spiral structure. In this embodiment, the machine housing feeding tray 110 can be a vibratory feeder. The machine housing is continuously fed by the vibratory feeder, so that the machine housing enters the discharge limiting channel on the discharge limiting member 112 along the spiral channel. The width of the discharge limiting channel only allows one machine housing to enter at a time. In this way, each machine housing can enter the discharge limiting channel one by one in an orderly manner, avoiding the accumulation of machine housings. Specifically, the discharge limiting member 112 also includes a discharge limiting strip 112a and a discharge stop block 112b. The discharge limiting channel is opened on the discharge limiting strip 112a, and the discharge stop block 112b is disposed on the discharge limiting strip. On one end of the housing feeding module 120 near 112a, the discharge stop block 112b is used to stop and limit the housing. That is, the housing is limited by the discharge limit bar 112a. When the housing moves along the discharge limit channel to the discharge stop block 112b, the discharge stop block 112b prevents the housing from moving further. A fiber optic sensor is set on one end of the discharge limit bar 112a near the discharge stop block 112b. The fiber optic sensor identifies the housing in position, thereby controlling the housing feeding module 120 to work. The housing feeding module 120 moves to the top of the discharge stop block 112b and transports the housing to the riveting area to wait for the riveting operation. In addition, a vibration frequency modulation support 130 is provided at the bottom of the discharge limit bar 112a. The vibration frequency modulation support 130 supports and fixes the discharge limit bar 112a, and controls the vibration frequency of the discharge limit bar 112a. This allows the machine casing to continuously move towards the discharge stop block 112b, preventing the machine casing from stopping at the discharge limit bar 112a. It also prevents the discharge limit bar 112a from shaking significantly due to the vibration plate, which would affect normal feeding operations.

[0033] Furthermore, a limiting groove is formed on the discharge stop block 112b, which is connected to the discharge limiting channel. The limiting groove is used to stop and limit the movement of the machine housing. The limiting groove has a "U" shape, and its shape can be designed to match different machine housing shapes. In this embodiment, the machine housing is a cylindrical structure, so the limiting groove adopts a "U" shape to achieve the best limiting effect on the machine housing.

[0034] Furthermore, the housing feeding module 120 includes a fixed frame 121, a housing lateral displacement component 122, a housing lifting displacement component 123, and a housing adsorption component 124. The fixed frame 121 is located on one side of the riveting device 300. The housing lateral displacement component 122 is mounted on the fixed frame 121. The housing lifting displacement component 123 is connected to the housing lateral displacement component 122. The housing adsorption component 124 is connected to the housing lifting displacement component 123, and the adsorption end of the housing adsorption component 124 is located above the discharge stop block 112b. The housing adsorption component 124 is used to adsorb and fix the housing located on the discharge stop block 112b. The housing lifting displacement component 123 is used to drive the housing adsorption component 124 to move up and down, and the housing lateral displacement component 122 is used to drive the housing lifting displacement component 123 to move laterally, so that the housing adsorption component 124 can reciprocate between the discharge stop block 112b and the riveting area.

[0035] Specifically, the housing lateral displacement component 122 includes a housing lateral guide plate and a housing lateral cylinder. The housing lateral guide plate is mounted on the fixed frame 121, and the housing lifting displacement component 123 is slidably mounted on the housing lateral guide plate. The housing lateral cylinder is connected to the housing lifting displacement component 123, which drives the housing lifting displacement component 123 to perform lateral displacement along the housing lateral guide plate. That is, a guide rail is provided on the housing lateral guide plate, and the housing lifting displacement component 123 moves on the guide rail, thereby ensuring the stability of the housing lifting displacement component 123 during transport.

[0036] Furthermore, the housing lifting displacement component 123 includes a housing lifting guide plate and a housing lifting cylinder. The housing lifting guide plate is slidably disposed on the housing transverse guide plate, and the housing adsorption component 124 is slidably disposed on the housing lifting guide plate. The housing lifting cylinder is connected to the housing adsorption component 124 and is used to drive the housing adsorption component 124 to move up and down along the housing lifting guide plate.

[0037] Furthermore, the housing adsorption component 124 includes a housing sliding plate and a housing adsorption plate. The housing sliding plate is slidably disposed on the housing lifting guide plate, and the housing adsorption plate is disposed on the side of the housing sliding plate facing the discharge stop block 112b. The housing adsorption plate is used to adsorb and fix the housing on the discharge stop block 111b. Because the casing is a hollow cylindrical structure, an adsorption method is used to fix the casing, replacing the traditional clamping method. This reduces the risk of the casing being damaged or deformed. The size of the casing adsorption plate is smaller than the size of the casing cavity, allowing the adsorption plate to enter the casing cavity and adhere to the bottom of the cavity. After adsorption and fixation are completed, the casing lifting and displacement component 123 is activated, and the casing lifting cylinder is started, driving the casing sliding plate 124 to move upward along the casing lifting guide plate. After the casing is completely separated from the discharge stop block 112b, the casing lateral displacement component 122 is activated, and the casing lateral cylinder is started, driving the casing lifting and displacement component 123 to move towards the riveting area until the casing is moved to the riveting area to await the riveting operation.

[0038] Please see Figure 3 , Figure 4 and Figure 5 As shown, a spindle feeding device 200 includes: a spindle discharge plate 210, a spindle positioning and transfer module 220, and a spindle feeding robot 230. The spindle discharge plate 210 is provided with a discharge end, the spindle feeding robot 230 is provided with a gripping end, and the spindle positioning and transfer module 220 performs reciprocating displacement between the discharge end and the gripping end.

[0039] The spindle positioning and transfer module 220 is equipped with a spindle positioning fixture 221. When the spindle positioning and transfer module 220 is located at the discharge end, the spindle positioning fixture 221 is aligned with the discharge end so that the spindle on the discharge end enters the spindle positioning fixture 221. The spindle positioning fixture 221 is used to limit and fix the spindle. When the spindle positioning and transfer module 220 is used to transfer the spindle on the spindle positioning fixture 221 to the clamping end, the spindle loading robot 230 is used to perform loading operation on the spindle on the spindle positioning fixture 221.

[0040] It should be noted that the traditional feeding method involves manual feeding or continuous conveying of the main shaft via a belt conveyor, followed by a robotic arm transferring the main shaft from the belt conveyor to the corresponding assembly equipment. However, the main shafts placed on the belt conveyor are usually not uniformly positioned, which means that when the robotic arm grabs the main shaft, it will grab different parts of the main shaft. As a result, the main shaft will have various offset and skewed postures after being grabbed, making it impossible for the robotic arm to properly place the main shaft into the riveting device 300, which in turn affects the feeding efficiency. Therefore, in this embodiment, the spindle is vibrated and fed by the spindle discharge plate 210, so that the spindle can be discharged one by one from the discharge end in an orderly manner. The vibrating feeding method can avoid the problem of spindle accumulation and ensure that the corresponding robot can perform the gripping operation normally. For example, the spindle discharge plate can be a vibrating plate. Furthermore, in order to ensure that the part of the spindle gripped by the spindle feeding robot 230 is consistent each time, the spindle positioning transfer module 220 is set to pre-position the spindle. When the spindle discharge plate 210 starts vibrating and discharging, the spindle positioning fixture 221 on the spindle positioning transfer module 220 is aligned with the spindle discharge plate. The discharge end of the material tray 210 is aligned so that after the spindle comes out from the discharge end, it is directly inserted into the spindle positioning fixture 221. The spindle is positioned by the spindle positioning fixture 221. Then, the spindle on the spindle positioning fixture 221 is transferred to the gripping end by the spindle positioning transfer module 220, waiting for the spindle loading robot 230 to grip and load it. The spindle positioning fixture 221 ensures that the spindle is always positioned in a consistent manner. In this way, the spindle loading robot 230 can grip the spindle in a consistent position each time, avoiding the problem of spindle offset and skew, so that the spindle can be continuously and normally loaded, thereby improving the loading slope.

[0041] Furthermore, a guide pipe 211 is provided on the main shaft discharge plate 210, with the discharge end located at one end of the guide pipe 211. A guide channel is provided on the guide pipe 211, the width of which can only accommodate one main shaft to avoid the main shaft from piling up. Under the continuous vibration of the main shaft discharge plate 210, the main shaft continuously discharges material along the guide pipe 211.

[0042] Furthermore, the spindle feeding device 200 also includes a discharge stop assembly 240, which includes a bracket 241 and a discharge stop member 242. The bracket 241 is disposed on one side of the spindle positioning and transfer module 220, the guide tube 211 is fixed on the bracket 241, and the discharge end of the guide tube 211 is disposed towards the spindle positioning and transfer module 220. The discharge stop member 242 is disposed on the bracket 241 and is used to limit and block the spindle.

[0043] It should be noted that the discharge stop component 242 includes a stop cylinder 242a and a discharge stop rod 242b. The stop cylinder 242a is connected to the discharge stop rod 242b. One end of the discharge stop rod 242b faces the guide tube 211, and there is a through hole on the side of the guide tube 211 facing the discharge stop rod 242b. One end of the discharge stop rod 242b passes through the through hole. When it is necessary to stop the guide tube 211 from continuing to discharge, the stop cylinder 242a drives the discharge stop rod 242b to move forward, so that one end of the discharge stop rod 242b blocks the guide channel of the guide tube 211. At the same time, in order to prevent the discharge stop rod 242b from puncturing the spindle, a buffer stop block, such as a buffer stop block made of rubber, can be set at the stop end of the discharge stop rod 242b. Furthermore, in order to enable the spindle on the guide tube 211 to smoothly enter the spindle positioning fixture 221, a notch is provided on the discharge end of the guide tube 211. In this way, when the spindle enters the spindle positioning fixture 221, the spindle is not completely separated from the guide tube 211, and when the spindle positioning fixture 221 drives the spindle to move towards the clamping end, the spindle can still go out through the notch, thus preventing the spindle from shifting to the other side.

[0044] Furthermore, a positioning detector 241a is also provided on the support 241, with the sensing end of the positioning detector 241a facing the discharge end. For example, the positioning detector 241a adopts a fiber optic sensor, which identifies whether the spindle has moved into the spindle positioning fixture 221, thereby controlling the start-up time of the spindle positioning transfer module 220, so as to make the actions of each structure coherent and orderly.

[0045] In one embodiment, the spindle positioning and transfer module 220 includes a fixture lifting drive 222 and a fixture lateral drive 223. The fixture lifting drive 222 is connected to the fixture lateral drive 223, and the spindle positioning fixture 221 is connected to the fixture lifting drive 222. The fixture lateral drive 223 is used to drive the fixture lifting drive 222 to reciprocate between the discharge end and the clamping end, and the fixture lifting drive 222 is used to drive the spindle positioning fixture 221 to perform lifting and lowering movements.

[0046] It should be noted that, for example, the jig lifting drive 222 is a cylinder, and the spindle positioning jig 221 is set on the drive end of the cylinder. The cylinder drives the spindle positioning jig 221 to achieve lifting and lowering movement. The jig lateral drive 223 can be a linear drive module or a drive cylinder. The linear drive module or cylinder drives the spindle positioning jig 221 on the jig lifting drive 222 to reciprocate between the discharge end and the clamping end.

[0047] Furthermore, the spindle positioning fixture 221 is provided with a spindle positioning groove, which is used to limit and fix the spindle. The spindle positioning fixture 221 has a cylindrical structure, and correspondingly, the spindle positioning groove matches the external structure of the spindle, that is, the spindle positioning groove has a circular structure. In this way, the spindle misalignment and skewness can be avoided to the greatest extent.

[0048] In one embodiment, the spindle loading robot 230 includes a fixed base 231, a spindle longitudinal displacement component 232, a spindle lifting sliding frame 233, and a spindle clamping component 234. The fixed base 231 is located on one side of the spindle positioning and transfer module 220. The spindle longitudinal displacement component 232 is mounted on the fixed base 231. The spindle lifting sliding frame 233 is connected to the spindle longitudinal displacement component 232. The spindle clamping component 234 is mounted on the spindle lifting sliding frame 233. When the spindle positioning and transfer module 220 moves the spindle positioning fixture 221 to the clamping end, the spindle clamping component 234 is used to clamp and fix the spindle on the spindle positioning fixture 221. The spindle lifting sliding frame 233 is used to drive the spindle clamping component 234 to move up and down. The spindle longitudinal displacement component 232 is used to drive the spindle lifting sliding frame 233 to move longitudinally. In this embodiment, the longitudinal displacement component 232 of the main spindle is a magnetically coupled rodless cylinder drive structure, which reduces the space occupied by the cylinder. The main spindle lifting slide 233 can be connected by a cylinder, and the main spindle lifting slide 233 is driven by the cylinder to perform lifting and lowering movements.

[0049] In one embodiment, the spindle clamping component 234 includes a spindle clamping cylinder 234a and spindle clamping jaws 234b. The spindle clamping jaws 234b are mounted on the spindle clamping cylinder 234a. The spindle clamping cylinder 234a drives the spindle clamping jaws 234b to perform a clamping operation on the spindle. There are two spindle clamping jaws 234b, which are respectively located at the two drive ends of the spindle clamping cylinder 234a. The spindle clamping cylinder 234a enables the two spindle clamping jaws 234b to perform the clamping action. To avoid damaging the spindle when clamping, in this embodiment, a buffer limiting block, such as a rubber block, is provided on the clamping part of the spindle clamping jaws 234b. A limiting groove is also provided on the buffer limiting block to limit the spindle, thereby ensuring the stability when clamping the spindle.

[0050] Please see Figure 6 , Figure 7 and Figure 8As shown, a riveting device 300 includes: a lower riveting seat 310 and an upper riveting module 320. The lower riveting seat 310 is provided with a riveting area. The upper riveting module 320 includes a positioning template 321 and a lower pressing member 322. The positioning template 321 is located between the lower pressing member 322 and the riveting area. A positioning boss 321a is provided on the side of the positioning template 321 facing the riveting area. A riveting positioning hole 321b is provided on the positioning boss 321a. When a housing is placed on the riveting area, the positioning boss 321a is engaged with the inner cavity of the housing so that the riveting positioning hole 321b is aligned with the riveting hole on the housing. When the riveting positioning hole 321b is used to position the spindle, the lower pressing member 322 is used to press down on the spindle so that the spindle and the housing are riveted together.

[0051] It should be noted that traditional riveting devices typically use an upper riveting seat to clamp the main shaft and press it down onto another component on a lower riveting seat to complete the riveting assembly. In other words, the riveting alignment relies solely on the installation accuracy of the upper and lower riveting seats. However, after long-term use, the upper and lower riveting seats may shift relative to each other, which can easily lead to riveting deviations. This can cause the shaft to fail to align and rivet with another component, resulting in poor assembly quality. Therefore, this method is not suitable for motors with high assembly precision requirements. In this embodiment, before riveting the spindle and housing, the housing on the riveting area is first positioned by the positioning template 321, that is, the positioning boss 321a is engaged into the inner cavity of the housing, thereby achieving the positioning of the housing. At this time, the riveting positioning hole 321b on the positioning boss 321a will be aligned with the riveting hole on the housing, so the spindle feeding device 200 can directly move the spindle into the riveting positioning hole 321b. In this way, the spindle can always be aligned with the riveting hole on the housing, thereby avoiding riveting misalignment and improving the riveting quality and riveting assembly accuracy. Furthermore, in one embodiment, in order to avoid the positioning template 321 scratching the inner cavity of the housing, the positioning boss 321a is made of rubber or other plastic cushioning material.

[0052] In one embodiment, in order to further improve the alignment accuracy between the positioning template 321, the lower pressing member 322 and the lower riveting seat 310, the upper riveting module 320 includes a first elastic guide member 323, which is connected to the lower pressing member 322, the positioning template 321 and the lower riveting seat 310 respectively. The first elastic guide 323 ensures that the pressing member 322, the positioning template 321, and the lower riveting seat 310 are always on the same center, preventing them from shifting during long-term use and causing low assembly accuracy. In this embodiment, the first elastic guide 323 includes a first guide rod 323a and a first spring 323b. The first guide rod 323a passes through the pressing member 322, the positioning template 321, and the lower riveting seat 310, respectively. The first spring 323b is sleeved on the first guide rod 323a and is located between the pressing member and the positioning template 321, and also between the positioning template 321 and the lower riveting seat 310. For example, two first springs 323b are provided. One first spring 323b is located between the pressing member and the positioning template 321, and the other first spring 323b is located between the positioning template 321 and the lower riveting seat 310. The first spring 323b not only serves as a downward pressure buffer but also acts as a reset mechanism after the downward pressure is released. The first guide rod 323a integrates the pressing member 322, the positioning template 321, and the lower riveting seat 310, guiding the pressing member 322 and the positioning template 321 downwards to prevent positional displacement and making the overall structure more compact and the movements more seamless. Furthermore, in this embodiment, two first elastic guides 323 are provided to ensure the stability of the movement of the pressing member 322 and the positioning template 321. In addition, a guide sleeve can be provided at the connection between the first guide rod 323a and the lower pressure member 322 and the positioning template 321. The guide sleeve reduces the friction and wear of the first guide rod 323a, the lower pressure member 322 and the positioning template 321, thereby improving the service life of the overall device.

[0053] Furthermore, to further improve the alignment accuracy of the pressing member 322 and the positioning template 321, as well as the stability of the pressing movement, the upper riveting module 320 also includes a second elastic guide member 324. The second elastic guide member 324 is connected to both the pressing member 322 and the positioning template 321, and is located on one side of the first elastic guide member 323. In this embodiment, the second elastic guide member 324 includes a second guide rod 324a and a second spring 324b. The second spring 324b is sleeved on the second guide rod 324a. After the downward pressure disappears, the second spring 324b resets the pressure, and the second guide rod 324a guides the pressing member 322 downward.

[0054] In one embodiment, the upper riveting module 320 further includes a lowering drive 325, which is located above the lowering member 322. When a housing is placed in the riveting area, the lowering drive 325 drives the positioning template 321 to move downward toward the housing, so that the positioning boss 321a engages with the inner cavity of the housing. When a spindle is placed on the riveting positioning hole 321b, the lowering drive 325 also drives the lowering member 322 to move downward toward the spindle, so that the spindle and the housing are riveted together. The lowering drive 325 applies downward pressure to the lowering member 322 and the positioning template 321, thereby causing the positioning template 321 and the lowering member 322 to move downward sequentially. Specifically, in this embodiment, the pressing drive 325 further includes a motor screw structure 325a and a push plate 325b. The motor screw structure 325a is connected to the push plate 325b, and the push plate 325b is located above the pressing member 322. The motor screw structure 325a is used to drive the push plate 325b to move in the direction of the pressing member 322, so that the push plate 325b drives the pressing member 322 to perform a pressing operation. For example, the motor screw structure 325a includes a drive motor and a screw.

[0055] In one embodiment, the pressing member 322 includes a pressing rod 322a and a pressing rod fixing plate 322b. The pressing rod fixing plate 322b is sleeved on the first elastic guide member 323. One end of the pressing rod 322a is disposed on the side of the pressing rod fixing plate 322b facing the riveting positioning hole 321b. The pressing rod 322a is used to press down the spindle so that the spindle is connected to the machine housing.

[0056] It should be noted that the pressure rod 322a is aligned with the main shaft, and the pressure rod fixing plate 322b drives the pressure rod 322a to move towards the main shaft, thereby pushing the main shaft to be riveted to the machine housing. In this embodiment, a pressure sensor 322c is provided on the side of the pressure rod fixing plate 322b away from the positioning template 321. The pressure sensor 322c controls the downward pressure of the pressure driving component 325, thereby controlling the downward pressure of the pressure rod 322, and avoiding excessive downward pressure that could damage the main shaft and the machine housing.

[0057] In one embodiment, a positioning block 311 is provided on the riveting area. The positioning block 311 is used to support and position the housing, and a positioning sensor is provided on the positioning block 311. For example, the positioning sensor is a fiber optic sensor, which identifies whether the housing is placed on the positioning block 311. Furthermore, a clearance groove is also provided on the positioning block 311 to avoid obstructing the spindle. In this way, after the spindle passes through the riveting hole of the housing, a part of the spindle is located in the clearance groove, thereby preventing damage to the spindle.

[0058] The riveting process of the riveting device 300 is as follows: The housing feeding device 100 feeds the housing and places it on the riveting area. Then, the pressing drive 325 is activated, pushing the pressing component 322 and the positioning template 321 towards the riveting area. Because the first elastic guide 323 is connected to the pressing component 322 and the positioning template 321, and there is a certain gap between the pressing component 322 and the positioning template 321, when the pressing drive 325 pushes the pressing component 322, the positioning template 321 moves towards the riveting area so that the positioning boss 321a first engages with the housing, thereby positioning the housing. Then, the spindle feeding device 200 feeds the spindle and places it on the riveting positioning hole 321b of the positioning boss 321a. The pressing drive 325 continues to push the pressing component 322 towards the riveting area, finally causing the pressing rod 322a to push the spindle and the housing to form a riveting connection.

[0059] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. An automatic riveting device for a motor spindle and a motor housing, characterized in that, include: The device includes a housing feeding device, a spindle feeding device, and a riveting device. The housing feeding device and the spindle feeding device are respectively arranged around the riveting device. The riveting device is provided with a riveting area. The housing feeding device is used to transfer the housing to the riveting area, and the spindle feeding device is used to transfer the spindle to the riveting area. The riveting device is used to perform riveting operations on the spindle and the housing in the riveting area. The riveting device includes a lower riveting seat and an upper riveting module. The lower riveting seat is provided with the riveting area. The upper riveting module includes a positioning template and a pressing member. The positioning template is located between the pressing member and the riveting area. A positioning boss is provided on the side of the positioning template facing the riveting area. A riveting positioning hole is provided on the positioning boss. When a housing is placed on the riveting area, the positioning boss engages with the inner cavity of the housing so that the riveting positioning hole is aligned with the riveting hole on the housing. When the riveting positioning hole is used to position the spindle, the pressing member is used to press down on the spindle so that the spindle and the housing are riveted together. The spindle feeding device includes a spindle discharge plate, a spindle positioning and transfer module, and a spindle feeding robot. The spindle discharge plate is provided with a discharge end, and the spindle feeding robot is provided with a gripping end. The spindle positioning and transfer module performs reciprocating displacement between the discharge end and the gripping end. The spindle positioning and transfer module is equipped with a spindle positioning fixture. When the spindle positioning and transfer module is located at the discharge end, the spindle positioning fixture is aligned with the discharge end so that the spindle on the discharge end enters the spindle positioning fixture. The spindle positioning fixture is used to limit and fix the spindle. When the spindle positioning and transfer module is used to transfer the spindle on the spindle positioning fixture to the clamping end, the spindle loading robot is used to perform a loading operation on the spindle on the spindle positioning fixture. The main shaft discharge plate is equipped with a guide tube, and the discharge end is located at one end of the guide tube; The main spindle feeding device also includes a discharge stop assembly, which includes a bracket and a discharge stop member. The bracket is disposed on one side of the main spindle positioning and transfer module. The guide tube is fixed on the bracket, and the discharge end of the guide tube is disposed towards the main spindle positioning and transfer module. The discharge stop member is disposed on the bracket and is used to limit and block the main spindle. The upper riveting module includes a first elastic guide member, which is connected to the lower pressing member, the positioning template and the lower riveting seat respectively. The first elastic guide includes a first guide rod and a first spring. The first guide rod is respectively inserted into the lower pressure member, the positioning template and the lower riveting seat. The first spring is sleeved on the first guide rod and is located between the lower pressure member and the positioning template. The first spring is also located between the positioning template and the lower riveting seat. The upper riveting module further includes a second elastic guide, which is connected to the lower pressing member and the positioning template respectively, and the second elastic guide is located on one side of the first elastic guide; The second elastic guide includes a second guide rod and a second spring. The second spring is sleeved on the second guide rod. After the downward pressure is removed, the second spring resets the pressure member. The second guide rod guides the downward pressure of the pressure member.

2. The automatic riveting equipment for the motor spindle and housing according to claim 1, characterized in that, The housing feeding device includes a housing feeding tray and a housing feeding module. The housing feeding tray and the housing feeding module are respectively located on one side of the riveting device. The housing feeding tray is used to vibrate and feed the housing, and the housing feeding module is used to transfer the housing on the housing feeding tray to the riveting area.

3. The automatic riveting equipment for the motor spindle and housing according to claim 2, characterized in that, The housing feeding tray includes a feeding tray body and a discharge limiting component. The discharge limiting component has a discharge limiting channel. The feeding tray body is provided with a hopper. One end of the discharge limiting component is connected to the feeding tray body so that the discharge limiting channel communicates with the hopper, and the other end of the discharge limiting component extends toward the housing feeding module.

4. The automatic riveting equipment for the motor spindle and housing according to claim 3, characterized in that, The discharge limiting component also includes a discharge limiting strip and a discharge stop block. The discharge limiting channel is opened on the discharge limiting strip, and the discharge stop block is disposed on one end of the discharge limiting strip near the housing feeding module. The discharge stop block is used to stop and limit the housing.

5. The automatic riveting equipment for the motor spindle and housing according to claim 4, characterized in that, The discharge stop block has a limiting groove, which is connected to the discharge limiting channel. The limiting groove is used to stop and limit the movement of the machine casing.

6. The automatic riveting equipment for the motor spindle and housing according to claim 5, characterized in that, The limiting groove has a "U" shaped structure.

7. The automatic riveting equipment for the motor spindle and housing according to any one of claims 4-6, characterized in that, The housing feeding module includes a fixed frame, a housing lateral displacement component, a housing lifting displacement component, and a housing suction component. The fixed frame is located on one side of the riveting device. The housing lateral displacement component is mounted on the fixed frame. The housing lifting displacement component is connected to the housing lateral displacement component. The housing suction component is connected to the housing lifting displacement component, and the suction end of the housing suction component is located above the discharge stop block. The housing suction component is used to suction and fix the housing located on the discharge stop block. The housing lifting displacement component is used to drive the housing suction component to move up and down. The housing lateral displacement component is used to drive the housing lifting displacement component to move laterally, so that the housing suction component reciprocates between the discharge stop block and the riveting area.

8. The automatic riveting equipment for the motor spindle and housing according to claim 7, characterized in that, The housing lateral displacement component includes a housing lateral guide plate and a housing lateral cylinder. The housing lateral guide plate is disposed on the fixed frame. The housing lifting displacement component is slidably disposed on the housing lateral guide plate. The housing lateral cylinder is connected to the housing lifting displacement component. The housing lateral cylinder is used to drive the housing lifting displacement component to perform lateral displacement movement along the housing lateral guide plate.

9. The automatic riveting equipment for the motor spindle and housing according to claim 8, characterized in that, The housing lifting and displacement component includes a housing lifting guide plate and a housing lifting cylinder. The housing lifting guide plate is slidably disposed on the housing transverse guide plate, and the housing adsorption component is slidably disposed on the housing lifting guide plate. The housing lifting cylinder is connected to the housing adsorption component and is used to drive the housing adsorption component to move up and down along the housing lifting guide plate.

10. The automatic riveting equipment for the motor spindle and housing according to claim 9, characterized in that, The housing adsorption component includes a housing sliding plate and a housing adsorption plate. The housing sliding plate is slidably disposed on the housing lifting guide plate, and the housing adsorption plate is disposed on the side of the housing sliding plate facing the discharge stop block. The housing adsorption plate is used to adsorb and fix the housing on the discharge stop block.

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