A magnetic ring preloading device

Abstract

The present invention relates to the technical field of mechanical equipment, and discloses a magnetic ring pre-pressing device, comprising a workbench, a pressing mechanism arranged on the workbench, and a bearing loading mechanism and a magnetic ring loading mechanism respectively arranged on both sides of the pressing mechanism, wherein: the bearing loading mechanism comprises a discharging component, a conveying component and a first pushing component, the conveying component is configured to receive the bearing sent out by the discharging component and transfer it to the first pushing component, the first pushing component is configured to push the bearing to the pressing mechanism; the magnetic ring loading mechanism comprises a storage component, a receiving component and a second pushing component, the receiving component is configured to receive the magnetic ring released by the storage component, the second pushing component is configured to push the magnetic ring to the pressing mechanism; the pressing mechanism is configured to clamp the bearing and coaxially press the bearing onto the magnetic ring.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical equipment, and in particular to a magnetic ring preloading device. Background Art

[0002] During assembly, a speed-regulating motor requires the installation of a magnetic ring on the rotor shaft. The magnetic ring is a permanent magnet with N north and south poles. Rotating the rotor drives the magnetic ring, allowing the Hall effect device to detect the motor's speed and control the motor's speed through the control system. The magnetic ring is installed with an interference fit between the rotor (or bearing). Typically, an operator manually places each magnetic ring on the rotor shaft, then uses a pressing mechanism to press the ring into place.

[0003] Chinese patent CN201920832399.8 discloses a press-fitting device for an injection molding assembly of a magnetic ring for an electric power steering gear, comprising a bracket, a base disposed at the bottom of the bracket, a drive cylinder disposed at the top of the bracket, a press-fitting assembly disposed on the base, a worm gear shaft assembly disposed on the press-fitting assembly, the press-fitting assembly comprising a disc-shaped chassis, a press-fitting unit, and a limiting sleeve, the press-fitting unit being detachably mounted on the chassis, the limiting sleeve being sleeved on the periphery of the press-fitting unit, the press-fitting unit comprising a positioning cylinder and a positioning shaft, the positioning shaft being slidably mounted within the positioning cylinder. This press-fitting device requires manual positioning and clamping when placing the magnetic ring and worm gear shaft assembly, resulting in low press-fitting efficiency and unreliable stability and reliability.

[0004] In addition, in the prior art, when the bearing and the magnetic ring are pressed together, they are pressed together in one step without any pre-pressing and re-pressing process, which leads to a high defective rate.

[0005] In view of the above-mentioned defects, the designers have actively carried out research and innovation in order to create a magnetic ring pre-pressing device to ensure the stability and reliability of subsequent press-fitting. Summary of the Invention

[0006] The purpose of the present invention is to propose a magnetic ring pre-pressing device that can automatically and accurately deliver the magnetic ring and bearing to be pressed to the pressing position for pre-pressing, that is, incomplete pressing, and improve the subsequent pressing efficiency, stability and reliability through pre-pressing.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] A magnetic ring pre-pressing device comprises a workbench, a press-fitting mechanism arranged on the workbench, and a bearing feeding mechanism and a magnetic ring feeding mechanism respectively arranged on both sides of the press-fitting mechanism, wherein:

[0009] The bearing feeding mechanism includes a discharging assembly, a conveying assembly, and a first pushing assembly. The conveying assembly is configured to receive the bearings delivered by the discharging assembly and transfer them to the first pushing assembly. The first pushing assembly is configured to push the bearings to the press-fitting mechanism.

[0010] The magnetic ring feeding mechanism includes a storage component, a receiving component and a second pushing component, wherein the receiving component is configured to receive the magnetic ring released by the storage component, and the second pushing component is configured to push the magnetic ring to the pressing mechanism;

[0011] The press-fitting mechanism is configured to clamp the bearing and coaxially press the bearing onto the magnetic ring.

[0012] As a preferred solution of the above-mentioned magnetic ring pre-pressing device, the pressing mechanism includes a support plate, a pressing component, a clamping and positioning component and a support component, and the support plate is provided with a first through hole, wherein:

[0013] The pressing component is arranged on the upper part of the support plate through a first connecting plate and can be lifted and lowered relative to the support plate. The pressing component includes a pressing cylinder. The first connecting plate is provided with a second through hole for a telescopic rod of the pressing cylinder to pass through. The second through hole is coaxial with the first through hole. The telescopic rod has a step structure near its end, and the end of the telescopic rod can pass through the bearing and press against the bearing.

[0014] The clamping and positioning component includes a fixing seat mounted on the first connecting plate, the fixing seat being provided with a third through hole coaxial with the second through hole, and the fixing seat being rotatably connected to clamping arms on both sides of the third through hole, the clamping arms being penetrated by a limiting pin capable of abutting against the step structure; a positioning portion is provided at the bottom of the fixing seat, the positioning portion being provided with a fourth through hole coaxial with the third through hole, and the positioning portion having a magnetic ring positioning groove coaxial with the fourth through hole;

[0015] The support component is arranged at the lower part of the support plate through the second connecting plate and can be lifted and lowered relative to the support plate. The support component includes a support shaft rod, and the support shaft rod can pass through the first through hole and support the magnetic ring.

[0016] As a preferred solution of the above-mentioned magnetic ring pre-stressing device, the clamping arm is provided with a waist-shaped hole, and the first connecting plate is connected to a first limiting rod with an end extending into the waist-shaped hole.

[0017] As a preferred solution of the above-mentioned magnetic ring prestressing device, the support shaft is passed through the second connecting plate through a sliding bearing sleeve, and a spring is provided between the sliding bearing sleeve and the free end of the support shaft; and waist-shaped grooves are provided on the opposite side walls of the support shaft, and the second connecting plate is connected with a second limiting rod that slides with the waist-shaped grooves respectively.

[0018] As a preferred solution of the above-mentioned magnetic ring pre-stressing device, a driving component for driving the support shaft to rise and fall is provided under the support plate, and the driving component includes a lifting block movably connected to the second connecting plate, a moving block and a driving cylinder that is telescopic in the horizontal direction. The lifting block is fitted with the moving block, and the fitting surfaces of the two are both inclined surfaces. The driving cylinder is connected to the moving block; the free end of the support shaft is slidably fitted with the lifting block.

[0019] As a preferred solution of the above-mentioned magnetic ring preloading device, the free end of the supporting shaft is a ball head type.

[0020] As a preferred solution of the above-mentioned magnetic ring pre-pressing device, the support plate is connected to a magnetic ring material guide plate, one end of the magnetic ring material guide plate is provided with a fifth through hole coaxial with the first through hole, the other end of the magnetic ring material guide plate is connected to the second pushing assembly, and the other end of the magnetic ring material guide plate is provided with a sixth through hole for the receiving assembly to pass through.

[0021] As a preferred solution of the above-mentioned magnetic ring pre-pressing device, a bearing guide plate is provided between the first pushing assembly and the two clamping arms.

[0022] As a preferred solution of the above-mentioned magnetic ring pre-pressing device, the magnetic ring pre-pressing device further includes a bearing height detection device and a defective product unloading mechanism arranged between the bearing feeding mechanism and the pressing mechanism.

[0023] As a preferred solution of the above-mentioned magnetic ring pre-pressing device, the magnetic ring pre-pressing device further includes a third pushing component and a conveying component, and the third pushing component is configured to push the pre-pressed product to the conveying component for conveying.

[0024] The beneficial effects of the present invention are as follows: the bearing feeding mechanism is used to automatically push the bearing to the pressing mechanism, the pressing mechanism clamps the bearing, and then the magnetic ring feeding mechanism automatically pushes the magnetic ring to the bottom of the bearing, the pressing mechanism presses down and controls the pressing distance so that the bearing touches the magnetic ring, realizing the pre-pressing of the magnetic ring and the bearing. The entire process does not require manual material placement and positioning, greatly improving the pressing efficiency, paving the way for subsequent pressing, and ensuring the accuracy and reliability of pressing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a magnetic ring preloading device provided in a specific embodiment of the present invention;

[0026] Figure 2 It is a structural schematic diagram of a discharge assembly in a magnetic ring pre-pressing device provided in a specific embodiment of the present invention;

[0027] Figure 3 It is a structural schematic diagram of a conveying assembly in a magnetic ring preloading device provided in a specific embodiment of the present invention;

[0028] Figure 4 It is a structural schematic diagram of a magnetic ring feeding mechanism in a magnetic ring preloading device provided in a specific embodiment of the present invention;

[0029] Figure 5 It is a schematic diagram of the assembly of the pressing mechanism, the third pushing assembly and the conveying assembly in the magnetic ring pre-pressing device provided in a specific embodiment of the present invention;

[0030] Figure 6 It is a structural schematic diagram of the clamping and positioning component in the magnetic ring preloading device provided in a specific embodiment of the present invention;

[0031] Figure 7 1 is a schematic diagram of the assembly of the support component and the drive assembly in the magnetic ring preloading device provided in a specific embodiment of the present invention;

[0032] Figure 8 It is a structural schematic diagram of the defective product unloading mechanism in the magnetic ring preloading device provided in a specific embodiment of the present invention.

[0033] In the figure: 100-workbench, 200-pressing mechanism, 210-support plate, 220-pressing component, 221-first connecting plate, 222-pressing cylinder, 224-step structure, 230-gripping and positioning component, 231-fixed seat, 233-clamping arm, 234-limiting pin, 235-positioning part, 237-magnetic ring positioning groove, 238-first limiting rod, 240-driving assembly, 251-lifting block, 252-driving cylinder , 253-moving block, 300-bearing feeding mechanism, 310-discharging assembly, 320-conveying assembly, 330-first pushing assembly, 340-bearing guide plate, 400-magnetic ring feeding mechanism, 410-storage assembly, 420-receiving assembly, 430-second pushing assembly, 440-magnetic ring guide plate, 500-bearing height detection device, 610-third pushing assembly, 620-conveying assembly, 700-defective product unloading mechanism. DETAILED DESCRIPTION

[0034] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present invention more clearly understood, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It is apparent that the described embodiments are only some of the embodiments of the present invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0035] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0036] In the present invention, unless otherwise clearly stipulated and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0037] like Figures 1 to 7 As shown, the magnetic ring pre-pressing device of the present invention includes a workbench 100, a pressing mechanism 200 arranged on the workbench 100, and a bearing feeding mechanism 300 and a magnetic ring feeding mechanism 400 respectively arranged on both sides of the pressing mechanism 200. Among them, the bearing feeding mechanism 300 includes a discharge assembly 310, a conveying assembly 320 and a first pushing assembly 330. The conveying assembly 320 is configured to receive the bearing sent out by the discharge assembly 310 and transfer it to the first pushing assembly 330. The first pushing assembly 330 is configured to push the bearing to the pressing mechanism 200. The magnetic ring feeding mechanism 400 includes a storage assembly 410, a receiving assembly 420 and a second pushing assembly 430. The receiving assembly 420 is configured to receive the magnetic ring released by the storage assembly 410. The second pushing assembly 430 is configured to push the magnetic ring to the pressing mechanism 200. The pressing mechanism 200 is configured to clamp the bearing and coaxially press the bearing onto the magnetic ring.

[0038] Specifically, if Figure 2 and Figure 3 As shown, the discharge assembly 310 utilizes a skewer for discharging. When the skewer rotates to the discharge location, the bearing on the skewer drops from the discharge location onto the plate below. The conveyor assembly 320 pushes forward, engages the bearing, and then translates, bringing the bearing to the corresponding workstation. The conveyor assembly 320 then translates backward to its original position. The mechanisms of the discharge assembly 310 and conveyor assembly 320 are commonly used in the art and will not be further described here.

[0039] When the conveying assembly 320 brings the bearing to the first pushing assembly 330, the first pushing assembly 330 pushes the bearing into the press-fitting mechanism 200. Specifically, Figures 5 to 7 As shown, the pressing mechanism 200 includes a support plate 210, a pressing component 220, a clamping and positioning component 230, and a support component 240. The support plate 210 is provided with a first through hole. The pressing component 220 is arranged on the upper part of the support plate 210 through a first connecting plate 221 and can be lifted and lowered relative to the support plate 210. The pressing component 220 includes a pressing cylinder 222. The first connecting plate 221 is provided with a second through hole for the telescopic rod of the pressing cylinder 222 to pass through. The second through hole is coaxial with the first through hole. The telescopic rod has a step structure 224 near its end, and the end of the telescopic rod can pass through the bearing and press against the bearing. The clamping and positioning component 230 includes a fixing seat 231 installed on the first connecting plate 221. The fixing seat 231 is provided with a third through hole coaxial with the second through hole, and the fixing seat 231 is rotatably connected to a clamping arm 233 on both sides of the third through hole, and the clamping arm 233 is penetrated by a limit pin 234 that can abut against the step structure 224; a positioning portion 235 is provided at the bottom of the fixed seat 231, and the positioning portion 235 is provided with a fourth through hole coaxial with the third through hole, and the positioning portion 235 has a magnetic ring positioning groove 237 coaxial with the fourth through hole; the support component 240 is arranged at the lower part of the support plate 210 through the second connecting plate 241 and can be raised and lowered relative to the support plate 210, and the support component 240 includes a support shaft 242, and the support shaft 242 can pass through the first through hole and support the magnetic ring. A bearing guide plate 340 is provided between the first pushing assembly 330 and the two clamping arms 233. The first pushing assembly 330 pushes the bearing between the two clamping arms 233 along the bearing guide plate. During this pushing process, the two clamping arms 233 are forced to rotate outward. To control the extent of the opening of the two clamping arms 233 and to ensure that the bearing is clamped, the present invention provides waist-shaped holes in the clamping arms 233. The first limiting rod 238, whose end extends into the waist-shaped hole, connects the first connecting plate 221. The first limiting rod 238 cooperates with the waist-shaped hole to limit the extent of the opening of the two clamping arms 233, ensuring that the two clamping arms 233 are opened to a sufficient extent to clamp the bearing.

[0040] In addition, the magnetic ring feeding mechanism 400 pushes the magnetic ring to the press-fitting mechanism 200, specifically, to the bottom of the positioning portion 235. The storage assembly 410 (a common structure in this field, which will not be described in detail here) also uses a rotating string rod to release the magnetic rings strung on the string rod one by one. The receiving assembly 420 below rises to support the released magnetic rings, and then the second pushing assembly 430 pushes the magnetic ring to the bottom of the positioning portion 235. In order to ensure that the magnetic ring reaches the bottom of the positioning portion 235 stably, the present invention connects the support plate 210 with a magnetic ring guide plate 440. One end of the magnetic ring guide plate 440 is provided with a fifth through hole coaxial with the first through hole. The other end of the magnetic ring guide plate 440 is connected to the second pushing assembly 430, and the other end of the magnetic ring guide plate 440 is provided with a sixth through hole for the receiving assembly 420 to pass through. That is, the receiving component 420 rises and passes through the sixth through hole to support the magnetic ring, and then the receiving component 420 descends, and the magnetic ring is placed on the magnetic ring guide plate 440. The second pushing component 430 pushes the magnetic ring along the magnetic ring guide plate 440 to the bottom of the positioning part 253. Driven by the downward pressure cylinder 222, the clamping positioning component 230 descends, so that the magnetic ring positioning groove 237 clamps the magnetic ring, thereby realizing the positioning of the magnetic ring.

[0041] In addition, after the magnetic ring reaches below the positioning portion 253, the support member 240 rises to support the magnetic ring. Figure 7 As shown, the support shaft 242 is passed through the second connecting plate 241 through a sliding bearing sleeve, and a spring 243 is sleeved between the sliding bearing sleeve and the free end of the support shaft 242; and waist-shaped grooves are provided on the opposite side walls of the support shaft 242, and the second connecting plate 241 is connected to a second limit rod 244 that slides with the waist-shaped grooves respectively; a driving assembly 250 for driving the support shaft 242 to rise and fall is provided under the support plate 210, and the driving assembly 250 includes a lifting block 251 movably connected to the second connecting plate 241, a moving block 253 and a driving cylinder 252 that is telescopic in the horizontal direction, the lifting block 251 is fitted with the moving block 253, and the fitting surfaces of the two are both inclined surfaces, and the driving cylinder 252 is connected to the moving block 253; the free end of the support shaft 242 slides with the lifting block 251, and preferably, the free end of the support shaft 242 is a ball head type. The cooperation between the second limiting rod 244 and the waist-shaped groove can limit the height of the support shaft 242 to be raised and lowered, and the setting of the spring 243 can make the support shaft 242 return to its original position more smoothly.

[0042] The entire pre-stressing process is as follows: the clamping and positioning component 230 first rises under the action of the pressing component 220, and then when the bearing is pushed over, the two clamping arms 233 clamp the bearing, and when the magnetic ring is pushed over, the supporting component 240 rises to support the magnetic ring, and then the pressing component 220 causes the clamping and positioning component 230 to descend, pressing the magnetic ring and positioning the magnetic ring, and then the telescopic rod of the pressing cylinder 222 continues to extend, and when the end of the telescopic rod presses against the bearing, the bearing contacts and presses on the magnetic ring. During the contact and pressing process, the two limit pins will jam the step structure 224 of the telescopic rod, preventing the telescopic rod from continuing to extend, thereby controlling the depth of the pre-stressing, and then the pressing component drives the clamping and positioning component 230 to return, and the supporting component 240 returns, waiting for the next bearing and magnetic ring to come.

[0043] It can be seen that the pressing mechanism 200 has an ingenious structural design. One mechanism realizes the actions of clamping, positioning, supporting, and pressing. The structure is compact and the precision of pressing is controlled to be very high. Clamping is achieved by purely mechanical components, and does not use mechanisms such as electric mechanical claws that occupy a lot of space and are high in cost, which greatly reduces the cost and the overall space occupied is small.

[0044] As another embodiment of the present invention, the magnetic ring preloading device of the present invention further includes a bearing height detection device 500 and a defective product discharge mechanism 700, which are arranged between the bearing feeding mechanism 300 and the pressing mechanism 200. The height of the bearing is first detected by the bearing height detection device 500, and qualified ones are conveyed to the pushing mechanism 330, and unqualified ones are conveyed to the defective product discharge mechanism 700. The conveying component 320 can move the defective products to the defective product discharge mechanism 700 and push the defective products forward so that the defective products are stuck in the defective product discharge mechanism 700, as shown in FIG. Figure 8 As shown, the defective product unloading mechanism 700 can rotate to flip over and pour out the defective products stuck therein.

[0045] The magnetic ring preloading device of the present invention also includes a third pushing assembly 610 and a conveyor assembly 620. The third pushing assembly 610 is configured to push the preloaded product to the conveyor assembly 620 for transport. The third pushing assembly 610 is mounted on the support plate 210. After the bearing and magnetic ring are preloaded, and the gripping and positioning components 230 and support components 240 return to their original positions, the third pushing assembly 610 pushes the preloaded product forward, allowing it to reach the conveyor assembly 620. The conveyor assembly 620 then transfers the preloaded product to the next press-fitting device for press-fitting. The conveyor assembly can employ structures such as a conveyor belt or a robotic arm.

[0046] In summary, the magnetic ring pre-pressing device of the present invention can automatically and accurately deliver the magnetic ring and bearing to be press-fitted to the press-fitting position for pre-pressing.

[0047] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and are not to be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will readily conceive of other specific embodiments of the present invention without inventive effort, and such embodiments will fall within the scope of protection of the present invention.

Claims

1. A magnetic ring preloading device, characterized in that: The invention comprises a workbench (100), a pressing mechanism (200) arranged on the workbench (100), and a bearing feeding mechanism (300) and a magnetic ring feeding mechanism (400) respectively arranged on both sides of the pressing mechanism (200), wherein: The bearing loading mechanism (300) comprises a discharge assembly (310), a conveying assembly (320) and a first pushing assembly (330), wherein the conveying assembly (320) is configured to receive the bearing delivered by the discharge assembly (310) and transfer it to the first pushing assembly (330), and the first pushing assembly (330) is configured to push the bearing to the press-fitting mechanism (200); The magnetic ring feeding mechanism (400) comprises a storage component (410), a receiving component (420) and a second pushing component (430), wherein the receiving component (420) is configured to receive the magnetic ring released by the storage component (410), and the second pushing component (430) is configured to push the magnetic ring to the press-fitting mechanism (200); The press-fitting mechanism (200) is configured to clamp the bearing and coaxially press the bearing onto the magnetic ring.

2. The magnetic ring preloading device according to claim 1, characterized in that: The press-fitting mechanism (200) comprises a support plate (210), a pressing component (220), a clamping and positioning component (230), and a support component (240), wherein the support plate (210) is provided with a first through hole, wherein: The pressing component (220) is arranged on the upper part of the support plate (210) through a first connecting plate (221) and can be raised and lowered relative to the support plate (210). The pressing component (220) includes a pressing cylinder (222). The first connecting plate (221) is provided with a second through hole for the telescopic rod of the pressing cylinder (222) to pass through. The second through hole is coaxial with the first through hole. The telescopic rod has a step structure (224) near its end, and the end of the telescopic rod can pass through the bearing and press against the bearing. The clamping and positioning component (230) includes a fixing seat (231) mounted on the first connecting plate (221), the fixing seat (231) is provided with a third through hole coaxial with the second through hole, and the fixing seat (231) is rotatably connected to clamping arms (233) on both sides of the third through hole, and the clamping arms (233) are penetrated by a limiting pin (234) capable of abutting against the step structure (224); a positioning portion (235) is provided at the bottom of the fixing seat (231), the positioning portion (235) is provided with a fourth through hole coaxial with the third through hole, and the positioning portion (235) has a magnetic ring positioning groove (237) coaxial with the fourth through hole; The support component (240) is arranged at the lower part of the support plate (210) through a second connecting plate (241) and can be raised and lowered relative to the support plate (210). The support component (240) includes a support shaft (242), and the support shaft (242) can pass through the first through hole and support the magnetic ring.

3. The magnetic ring preloading device according to claim 2, characterized in that: The clamping arm (233) is provided with a waist-shaped hole, and the first connecting plate (221) is connected to a first limiting rod (238) whose end extends into the waist-shaped hole.

4. The magnetic ring preloading device according to claim 2, characterized in that: The support shaft (242) is passed through the second connecting plate (241) through a sliding bearing sleeve, and a spring (243) is sleeved between the sliding bearing sleeve and the free end of the support shaft (242); and waist-shaped grooves are provided on the opposite side walls of the support shaft (242), and the second connecting plate (241) is connected to a second limiting rod (244) that slides with the waist-shaped grooves respectively.

5. The magnetic ring preloading device according to claim 4, characterized in that: A driving assembly (250) for driving the supporting shaft (242) to move up and down is provided below the supporting plate (210). The driving assembly (250) comprises a lifting block (251) movably connected to the second connecting plate (241), a moving block (253) and a driving cylinder (252) that is telescopic in the horizontal direction. The lifting block (251) is fitted with the moving block (253), and the fitting surfaces of the two are both inclined surfaces. The driving cylinder (252) is connected to the moving block (253); the free end of the supporting shaft (242) is slidably fitted with the lifting block (251).

6. The magnetic ring preloading device according to claim 5, characterized in that: The free end of the support shaft (242) is a ball head type.

7. The magnetic ring preloading device according to claim 2, characterized in that: The support plate (210) is connected to a magnetic ring material guide plate (440), one end of the magnetic ring material guide plate (440) is provided with a fifth through hole coaxial with the first through hole, the other end of the magnetic ring material guide plate (440) is connected to the second pushing component (430), and the other end of the magnetic ring material guide plate (440) is provided with a sixth through hole for the receiving component (420) to pass through.

8. The magnetic ring preloading device according to claim 2, characterized in that: A bearing guide plate (340) is provided between the first pushing assembly (330) and the two clamping arms (233).

9. The magnetic ring preloading device according to any one of claims 1 to 8, characterized in that: The magnetic ring pre-pressing device further comprises a bearing height detection device (500) and a defective product unloading mechanism (700) arranged between the bearing feeding mechanism (300) and the pressing mechanism (200).

10. The magnetic ring preloading device according to claim 9, characterized in that: The magnetic ring pre-pressing device further comprises a third pushing component (610) and a conveying component (620), wherein the third pushing component (610) is configured to push the pre-pressed product to the conveying component (620) for conveying.

Images