A kind of clamp spring assembly device and clamp spring assembly method

Abstract

This invention discloses a snap ring assembly device and method, including a frame, a tray, a conveyor line, a feeding mechanism, a transfer mechanism, and a positioning mechanism. The positioning mechanism includes a support assembly, a first cylinder vertically mounted on the support assembly, a first plate driven to rise and fall by the first cylinder, a positioning pin mounted on the first plate, a spring sleeved on the positioning pin, a receiving platform mounted on the first plate with a vertical through hole and a feeding end face, a flange post slidably connected to the receiving platform through the vertical through hole, a pressing component mounted on the support assembly for driving the flange post to descend below the feeding end face, and a side-push positioning component mounted on the receiving platform. The flange post has a positioning hole slidably connected to the positioning post. Advantages: Compared to traditional fixed positioning post mechanisms that require the snap ring to be forcibly inserted from the top, this application avoids forced axial scraping between the inner ring of the snap ring and the positioning post, effectively protecting the surface quality and dimensional accuracy of the snap ring.

Description

Technical Field

[0001] This invention relates to the field of automated assembly, specifically to a snap ring assembly device and a snap ring assembly method. Background Technology

[0002] A snap ring is a commonly used mechanical fastener, typically installed in an annular groove on a shaft or hole to restrict the axial movement of parts. In automated assembly processes, snap rings need to be accurately assembled onto pillars or shafts in a housing. Snap rings are C-shaped elastic annular structures with openings; their two ends (free ends) naturally exhibit a certain angular deviation. Directly pressing them into the assembly can easily lead to snap ring deformation, improper assembly, or scratching of the workpiece. In existing technologies, snap ring assembly devices typically include a feeding mechanism, a positioning mechanism, a transfer mechanism, and a pressing mechanism. Before being transferred from the feeding mechanism to the pressing position, the snap ring needs to undergo a positioning and alignment process to ensure that the snap ring's center position and the circumferential angles of its two ends are in the preset correct posture, thereby ensuring that the snap ring can accurately engage with the annular groove of the workpiece during subsequent pressing. The conventional design of a positioning mechanism involves setting a positioning post on the positioning platform. Positioning is achieved by rotating the positioning post by inserting a retaining spring into it. Since the positioning post is a fixed structure, the retaining spring needs to be forcibly inserted from the top of the positioning post. This can easily cause the inner ring of the retaining spring to rub against the outer wall of the positioning post, resulting in surface damage to the retaining spring or a decrease in dimensional accuracy, which affects the subsequent assembly quality.

[0003] Therefore, it is necessary to provide a snap ring assembly device and a snap ring assembly method. Summary of the Invention

[0004] The present invention provides a snap ring assembly device and snap ring assembly method, which effectively solves the problem that snap rings are easily damaged during positioning in existing snap ring systems.

[0005] The technical solution adopted in this invention is: a snap ring assembly device, including a frame, a tray, a conveyor line for conveying the tray on the frame, a feeding mechanism on the frame, a transfer mechanism on the frame, and a positioning mechanism on the frame. The positioning mechanism includes a support assembly on the frame, a first cylinder vertically mounted on the support assembly, a first plate driven to rise and fall by the first cylinder, a positioning pin mounted on the first plate, a spring sleeved on the positioning pin, a receiving platform mounted on the first plate and having a vertical through hole and a feeding end face, a flange post slidably connected to the receiving platform through the vertical through hole, a pressing member mounted on the support assembly for driving the flange post to fall below the feeding end face, and a side-push positioning member mounted on the receiving platform. The flange post is provided with a positioning hole slidably connected to the positioning post and a step abutting against the upper end of the spring.

[0006] Furthermore, the flange column includes a cylinder and a flange disposed under the cylinder, the positioning hole is disposed axially inside the cylinder, and the pressing component includes a second cylinder disposed vertically on the support assembly and a second pressure plate disposed at the output end of the second cylinder, the lower end face of the second pressure plate abutting against the upper end face of the flange.

[0007] Furthermore, the receiving platform is provided with a groove on one side of the vertical through hole. The side-push positioning component includes a No. 3 cylinder horizontally arranged on the receiving platform and a push block arranged at the output end of the No. 3 cylinder. The push block slides along the groove and the upper end face of the push block protrudes from the upper end face of the receiving platform. The push block is provided with a positioning groove facing the vertical through hole. The positioning groove includes a bottom wall and side walls symmetrically arranged on both sides of the positioning groove along the flange post. The side walls are used to press the two ends of the retaining spring sleeved on the flange post.

[0008] Furthermore, the receiving platform is equipped with a clearance groove, and the second pressure plate extends into the clearance groove.

[0009] Furthermore, the support assembly includes a No. 4 support mounted on the frame, a No. 4 linear guide rail mounted on the No. 4 support, a sliding seat slidably mounted on the No. 4 linear guide rail, and a No. 4 cylinder mounted on the No. 4 support for driving the sliding seat to slide along the No. 4 linear guide rail.

[0010] Furthermore, the feeding mechanism includes a vibratory feeder mounted on the frame, a direct vibrator connected to the vibratory feeder, and a transfer assembly mounted on the frame. The transfer assembly includes a No. 5 support mounted on the frame, a receiving seat mounted on the No. 5 support, a No. 5 cylinder mounted horizontally on the No. 5 support, and a fifth cylinder gripper mounted vertically at the output end of the No. 5 cylinder. The No. 5 cylinder drives the cylinder gripper to move horizontally, and the fifth cylinder gripper is used to clamp the retaining ring on the receiving seat.

[0011] Furthermore, the transfer mechanism includes a No. 6 support mounted on the frame, a No. 6 linear guide rail mounted on the No. 6 support along the Y-axis, a sliding frame slidably mounted on the No. 6 linear guide rail, a No. 6 linear module A mounted on the No. 6 support for driving the sliding frame to slide along the No. 6 linear guide rail, a No. 6 linear module B vertically mounted on the sliding frame, a connecting frame mounted at the output end of the No. 6 linear module B, a CCD inspection camera mounted side-by-side on the connecting frame, and a pick-and-place assembly.

[0012] Furthermore, the pick-and-place assembly includes a sixth cylinder gripper mounted on the connecting frame, two sixth columns driven by the two claw toes of the sixth cylinder gripper, a sixth cylinder mounted vertically on the connecting frame, and a pressure cylinder mounted at the output end of the sixth cylinder.

[0013] Furthermore, the conveyor line includes a mounting frame on the frame, a line body on the mounting frame, a lifting assembly on the frame, and a clamping assembly on the mounting frame for cooperating with the lifting assembly. The clamping assembly includes a fixed frame fixedly mounted on the mounting frame, a linear bearing mounted vertically on the fixed frame, a lifting shaft sleeved on the linear bearing, a No. 7 pressure plate mounted on the upper end of the lifting shaft, and a No. 7 cylinder mounted on the fixed frame for driving the No. 7 pressure plate to rise and fall.

[0014] The snap ring assembly method, using the aforementioned snap ring assembly device, includes the following steps: S1, the positioning mechanism receives the material: the output end of cylinder No. 1 extends, so that the material feeding end face of the receiving platform is at the receiving height; the pressing component drives the flange column to descend along the vertical through hole of the receiving platform to below the bottom surface of the feeding groove, while simultaneously compressing the spring; S2, the feeding mechanism transports the snap ring to the receiving platform; S3, the output end of cylinder No. 1 retracts, driving the entire receiving platform to descend, so that the flange column moves down synchronously to complete the reset of the feeding mechanism and avoidance; S4, the pressing component releases the pressure on the flange column, and under the reset action of the spring, drives... The flange post rises along the vertical through hole of the receiving platform, passes through the opening of the retaining spring, and makes the retaining spring fit on the flange post; S5, side push positioning: the drive push block of the third cylinder moves horizontally to one side of the flange post, so that the two side walls of the push block push the outer walls of the two free ends of the retaining spring respectively. Since the two side walls squeeze the two ends of the retaining spring from both sides, the retaining spring is forced to rotate around the flange post in the horizontal plane to achieve positioning; S6, side push positioning reset: the drive push block of the third cylinder disengages from the retaining spring; S7, the transfer mechanism transfers the retaining spring from the positioning mechanism to the product on the tray to achieve the assembly of the retaining spring.

[0015] Beneficial effects of the invention: 1. The positioning mechanism of this application utilizes a spring-driven floating lifting structure of the flange post. Before the retaining spring is placed, the flange post actively lowers to allow it to rest flat on the material feeding end face of the receiving platform. After the retaining spring is in place, the flange post is then driven by the spring to flexibly pass through the inner ring of the retaining spring from below. Compared to traditional fixed positioning post mechanisms that require the retaining spring to be forcibly inserted from the top, this application avoids forced axial scraping between the inner ring of the retaining spring and the positioning post, effectively protecting the surface quality and dimensional accuracy of the retaining spring.

[0016] 2. This application provides radial positioning of the snap ring's center through a flange post. After the snap ring is fitted, it can still rotate freely around the flange post, creating conditions for the side-push positioning component to press the snap ring ends from both sides and adjust the circumferential angle. Through a two-step alignment strategy of "radial coarse positioning + circumferential fine positioning," the angular positions of the two free ends of the snap ring can be accurately corrected, enabling the snap ring to reach the preset alignment posture, significantly improving positioning accuracy and assembly consistency.

[0017] 3. The pick-and-place assembly of this application uses two No. 6 posts, driven by the gripper of the sixth cylinder, to expand the two free ends of the retaining ring on opposite sides. This allows the retaining ring to have an opening angle for assembly with the product before it extends into the product. Because the opening angle of the retaining ring is greater than its initial free state, it will not contact the product or damage the retaining ring or the product surface. After the gripper of the sixth cylinder closes, clamping the retaining ring onto the product, the pressure cylinder driven by the No. 6 cylinder presses down on the retaining ring during assembly, ultimately pressing it to the predetermined position and avoiding assembly errors of the retaining ring.

[0018] 4. During assembly, the product is clamped by the clamping component to improve the stability of the product when assembled with the snap ring. Attached Figure Description

[0019] Figure 1 This is an overall schematic diagram of the snap ring assembly device provided in the embodiments of this application.

[0020] Figure 2 This is a schematic diagram of the positioning mechanism and transfer component of the snap ring assembly device provided in the embodiments of this application.

[0021] Figure 3 This is a schematic diagram of the positioning mechanism of the snap ring assembly device provided in the embodiments of this application.

[0022] Figure 4 A cross-sectional view of the positioning mechanism of the snap ring assembly device provided in an embodiment of this application.

[0023] Figure 5 This is a schematic diagram of the flange post, spring, locating pin, and pressing member of the snap ring assembly device provided in the embodiments of this application.

[0024] Figure 6 This is a schematic diagram of the pick-and-place assembly, connecting frame, and one view of the CCD inspection camera of the snap ring assembly device provided in the embodiments of this application.

[0025] Figure 7 This is a schematic diagram from another perspective of the pick-and-place assembly, connecting bracket, and CCD inspection camera of the snap ring assembly device provided in the embodiments of this application.

[0026] Figure 8 This is a schematic diagram of the clamping assembly of the snap ring assembly provided in an embodiment of this application.

[0027] The diagram is labeled as follows: 1. Frame; 2. Pallet; 3. Conveyor line; 4. Feeding mechanism; 5. Transfer mechanism; 6. Positioning mechanism; 61. Loading assembly; 62. Cylinder No. 1; 63. Plate No. 1; 64. Positioning pin; 65. Spring; 66. Receiving platform; 67. Flange post; 68. Pressing component; 69. Side push positioning component; 671. Cylindrical column; 672. Flange; 681. Cylinder No. 2; 682. Pressing plate No. 2; 691. Cylinder No. 3; 692. Push block; 690. Side wall; 661. Alternating groove; 611. Support No. 4; 612. Linear guide rail No. 4; 613. Sliding seat; 614. Cylinder No. 4; 41. Vibrating plate; 42. Straight vibrator; 43. Transfer assembly; 4 31. Support No. 5; 432. Receiving seat; 433. Cylinder No. 5; 434. Cylinder No. 5 gripper; 51. Support No. 6; 52. Linear guide rail No. 6; 53. Sliding frame; 54. Linear module A No. 6; 55. Linear module B No. 6; 56. Connecting frame; 57. CCD inspection camera; 58. Pick-and-place assembly; 581. Cylinder No. 6 gripper; 582. Column No. 6; 583. Cylinder No. 6; 584. Pressure cylinder; 31. Mounting frame; 32. Production line; 33. Lifting assembly; 34. Clamping assembly; 341. Fixing frame; 342. Linear bearing; 343. Lifting shaft; 344. Pressure plate No. 7; 345. Cylinder No. 7; 100. Snap ring; 700. Sensor. Detailed Implementation

[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the first embodiment provided in this application is a snap ring assembly device, the structure of which includes a frame 1, a tray 2, a conveyor line 3 mounted on the frame 1 for conveying the tray 2, a feeding mechanism 4 mounted on the frame 1, a transfer mechanism 5 mounted on the frame 1, and a positioning mechanism 6 mounted on the frame 1. The positioning mechanism 6 includes a support assembly 61 mounted on the frame 1, a first cylinder 62 vertically mounted on the support assembly 61, a first plate 63 driven to rise and fall by the first cylinder 62, and a... The first plate 63 has a positioning pin 64, a spring 65 sleeved on the positioning pin 64, a receiving platform 66 with a vertical through hole and a feeding end face on the first plate 63, a flange post 67 slidably connected to the receiving platform 66 through the vertical through hole, a pressing member 68 on the support assembly 61 for driving the flange post 67 to descend below the feeding end face, and a side-push positioning member 69 on the receiving platform 66. The flange post 67 is provided with a positioning hole slidably connected to the positioning pin 64 and a step abutting against the upper end of the spring 65.

[0030] It should be noted that the product is a column on the motor housing. This application uses a PLC control system to control the feeding mechanism 4, the transfer mechanism 5 and the positioning mechanism 6. A sensor 700 is installed on the receiving platform 66 to detect whether the snap ring 100 is in place.

[0031] In actual use, conveyor line 3 moves pallet 2 to the receiving position, positioning mechanism 6 receives snap ring 100 provided by feeding mechanism 4, and then transfer mechanism 5 transfers snap ring 100, which has been positioned in positioning mechanism 6, to pallet 2 for product assembly. The positioning process of positioning mechanism 6 is as follows: When receiving material, the output end of cylinder 62 extends, so that the feeding end face of the receiving platform is at the receiving height. The pressing component 68 drives flange post 67 to descend along the vertical through hole of receiving platform 66 to below the bottom of feeding groove, while compressing spring 65. Then feeding mechanism 4 transports snap ring 100 to receiving platform 66, and then the output end of cylinder 62 retracts, driving the entire receiving platform 66 to descend, so that flange post 67 moves down synchronously to complete the avoidance of feeding mechanism 4. Subsequently, the pressing member 68 releases its pressure on the flange post 67. Under the reset action of the spring 65, the flange post 67 is driven to rise along the vertical through hole of the receiving platform 66 and pass through the opening of the retaining spring 100, so that the retaining spring 100 is sleeved on the flange post 67. Then, the side-push positioning member 69 presses the two free ends of the retaining spring 100 from the positioning post side of the flange 672, so that the retaining spring 100 rotates around the flange post 67 to the predetermined position to achieve positioning.

[0032] In the above design, the entire snap ring 100 assembly device can realize the automatic assembly of the snap ring 100. At the same time, the flange post 67 of the positioning mechanism 6 adopts a floating lifting structure driven by spring 65. Before the snap ring 100 is placed, the flange post 67 actively lowers to make room, so that the snap ring 100 can be placed flat on the feeding end face of the receiving table 66. After the snap ring 100 is in place, it is then driven by spring 65 to flexibly pass through the inner ring of the snap ring 100 from below. This completely avoids the scratch damage caused by forced axial insertion in traditional solutions, effectively protecting the surface quality and dimensions of the snap ring 100. Firstly, the flange post 67 only provides radial positioning of the center of the retaining spring 100. After the retaining spring 100 is fitted, it can still rotate freely around the flange post 67, which creates conditions for the side-push positioning component 69 to squeeze the end of the retaining spring 100 from both sides and adjust the circumferential angle, realizing step-by-step high-precision centering of "radial coarse positioning + circumferential fine positioning". Moreover, the whole process requires a pressing component 68 to control the flange post 67 to descend, and the spring 65 to automatically reset and rise. There is no need to set up a separate lifting drive for the positioning post. The structure is simple, the cost is low, and it is easy to lay out in an automated production line.

[0033] Specifically: such as Figure 4 and Figure 5As shown, the flange post 67 includes a cylinder 671 and a flange 672 disposed below the cylinder 671. The positioning hole is disposed axially inside the cylinder 671. The pressing member 68 includes a second cylinder 681 vertically disposed on the support assembly 61 and a second pressure plate 682 disposed at the output end of the second cylinder 681. The lower end face of the second pressure plate 682 abuts against the upper end face of the flange 672.

[0034] In actual use, when the pressing component 68 needs to press down on the flange post 67, the second cylinder 681 drives the second pressure plate 682 to press down on the upper end face of the flange 672. This causes the cylinder 671 to compress the spring 65 along the positioning pin 64. After the retaining ring 100 is in place, the output end of the second cylinder 681 rises, causing the second pressure plate 682 to stop pressing down on the flange 672. As a result, the spring 65 resets and drives the cylinder 671 upward, so that the cylinder 671 passes through the vertical through hole and then through the opening of the retaining ring 100 on the feeding end face, allowing the retaining ring 100 to be fitted onto the cylinder 671. Subsequently, the side-push positioning component 69 pushes the retaining ring 100 fitted onto the cylinder 671 horizontally, thus completing the positioning of the retaining ring 100.

[0035] In the above design, the structural design and specific implementation of the flange post 67 and the pressing member 68 facilitate the rapid lifting and lowering of the flange post 67 in actual operation and the positioning of the retaining spring 100.

[0036] Specifically: such as Figure 2 and Figure 3 As shown, the receiving platform 66 is provided with a groove on one side of the vertical through hole. The side-push positioning member 69 includes a No. 3 cylinder 691 horizontally arranged on the receiving platform 66 and a push block 692 arranged at the output end of the No. 3 cylinder 691. The push block 692 slides along the groove and the upper end face of the push block 692 protrudes from the upper end face of the receiving platform 66. The push block 692 is provided with a positioning groove facing the vertical through hole. The positioning groove includes a bottom wall and side walls 690 symmetrically arranged on both sides of the positioning groove along the flange post 67. The side walls 690 are used to press the two ends of the retaining spring 100 sleeved on the flange post 67.

[0037] In actual use, after the retaining spring 100 is positioned on the receiving end face by the flange post 67, it is in its initial position. The two free ends of the retaining spring 100 are located above the groove on one side of the receiving end face. Although the center of the retaining spring 100 is positioned by the flange post 67, there may be an error in the horizontal position of the two free ends. At this time, the push block 692 is moved horizontally by the drive of the third cylinder 691, so that the two side walls 690 of the push block 692 push the outer walls of the two free ends of the retaining spring 100 respectively. Since the two side walls 690 squeeze the two ends of the retaining spring 100 from both sides, the retaining spring 100 is forced to rotate around the flange post 67 in the horizontal plane until the stroke of the third cylinder 691 ends. At this time, the horizontal positioning and centering of the retaining spring 100 is completed.

[0038] In the above design, the structural design of the groove and the side positioning component, as well as the specific implementation method, facilitate the centering of the snap ring 100.

[0039] Specifically: such as Figure 3 As shown, the receiving platform 66 is provided with a clearance groove 661, and the second pressure plate 682 extends into the clearance groove 661.

[0040] In actual use, a portion of the flange 672 extends into the recessed groove 661, and the upper end face of the flange 672 extending into the recessed groove 661 abuts against the lower end face of the second pressure plate 682 extending into the recessed groove 661. When the second pressure plate 682 moves downward in the recessed groove 661, it simultaneously presses down on the flange 672, thereby causing the flange post 67 to move downward synchronously.

[0041] In the above design, the structural design and specific implementation of the clearance groove 661 facilitate a more streamlined structure for the entire receiving platform 66 and the pressing component 68.

[0042] Specifically: such as Figure 2 and Figure 3 As shown, the support assembly 61 includes a fourth support 611 mounted on the frame 1, a fourth linear guide rail 612 mounted on the fourth support 611, a sliding seat 613 slidably mounted on the fourth linear guide rail 612, and a fourth cylinder 614 mounted on the fourth support 611 for driving the sliding seat 613 to slide along the fourth linear guide rail 612.

[0043] In actual use, after the snap ring 100 completes its positioning and centering, the fourth cylinder 614 drives the sliding seat 613 to slide along the fourth linear guide rail 612 towards the side of the conveyor line 3 until it stops at a position convenient for the transfer mechanism 5 to receive the snap ring 100. After the snap ring 100 is transferred by the transfer mechanism 5, the fourth cylinder 614 drives the sliding seat 613 to reset along the fourth linear guide rail 612, ready to receive the snap ring 100 from the feeding mechanism 4 again.

[0044] In the above design, the structural design and specific implementation of the support component 61 facilitate the smooth movement of the snap ring 100 to the receiving position of the transfer mechanism 5.

[0045] Specifically: such as Figure 1 and Figure 2 As shown, the feeding mechanism 4 includes a vibratory plate 41 mounted on the frame 1, a straight vibrator 42 connected to the vibratory plate 41, and a transfer assembly 43 mounted on the frame 1. The transfer assembly 43 includes a fifth support 431 mounted on the frame 1, a receiving seat 432 mounted on the fifth support 431, a fifth cylinder 433 horizontally mounted on the fifth support 431, and a fifth cylinder gripper 434 vertically mounted at the output end of the fifth cylinder 433. The fifth cylinder 433 drives the cylinder gripper to move horizontally, and the fifth cylinder gripper 434 is used to clamp the snap ring 100 on the receiving seat 432.

[0046] In actual use, the snap rings 100 are sorted and arranged by the vibratory feeder 41 and then enter the direct vibrator 42, and are conveyed to the receiving seat 432 along the direct vibrator 42. The fifth cylinder 433 drives the fifth cylinder gripper 434 to move horizontally to the receiving seat 432. The fifth cylinder gripper 434 clamps the snap rings 100 on the receiving seat 432. Then, the fifth cylinder 433 drives the cylinder gripper to move the clamped snap rings 100 to the positioning mechanism 6, waiting for the positioning mechanism 6 to position them.

[0047] In the above design, the structural design and specific implementation of the feeding mechanism 4 facilitate the transfer of the snap ring 100.

[0048] Specifically: such as Figure 1 As shown, the transfer mechanism 5 includes a No. 6 support 51 mounted on the frame 1, a No. 6 linear guide rail 52 mounted on the No. 6 support 51 along the Y-axis, a sliding frame 53 slidably mounted on the No. 6 linear guide rail 52, a No. 6 linear module A54 mounted on the No. 6 support 51 for driving the sliding frame 53 to slide along the No. 6 linear guide rail 52, a No. 6 linear module B55 vertically mounted on the sliding frame 53, a connecting frame 56 mounted at the output end of the No. 6 linear module B55, a CCD inspection camera 57 arranged in parallel on the connecting frame 56, and a pick-and-place assembly 58.

[0049] In actual use, when it is necessary to transfer the retaining ring 100 of the positioning mechanism 6 to the product for assembly, the sixth linear module A54 first drives the sliding frame 53 to slide along the sixth linear guide rail 52 so that the CCD inspection camera 57 is positioned above the positioning mechanism 6. The CCD inspection camera 57 takes pictures of the retaining ring 100 on the positioning mechanism 6 for positioning. Then, the sixth linear module A54 drives the sixth linear module B55 to move so that the pick-and-place component 58 moves above the positioning mechanism 6. Then, the sixth linear module B55 drives the pick-and-place component 58 to move down so that the pick-and-place component 58 picks up the retaining ring 100. Then, the sixth linear module B55 drives the pick-and-place component 58 to move up. Then, the sixth linear module A54 drives the sixth linear module B55 to move above the product. Then, the sixth linear module B55 drives the pick-and-place component 58 to move down so that the pick-and-place component 58 assembles the retaining ring 100 onto the product.

[0050] In the above design, the structural design and specific implementation of the transfer mechanism 5 facilitate the precise reciprocating movement of the pick-and-place component 58 between the positioning mechanism 6 and the product to be assembled.

[0051] Specifically: such as Figure 6 and Figure 7 As shown, the pick-and-place assembly 58 includes a sixth cylinder gripper 581 mounted on the connecting frame 56, two sixth columns 582 driven by the two claw toes of the sixth cylinder gripper 581 respectively, a sixth cylinder 583 mounted vertically on the connecting frame 56, and a pressure cylinder 584 mounted at the output end of the sixth cylinder 583.

[0052] It should be noted that the two free ends of the snap ring 100 are provided with lateral grooves on opposite sides that can mate with the sixth post 582.

[0053] In actual use, when it is necessary to remove the retaining ring 100 from the positioning mechanism 6, the sixth linear module B55 drives the connecting frame 56 to move downward, causing the two toes of the sixth cylinder gripper 581 to extend into the two side slots of the retaining ring 100 while the two toes are not closed. Subsequently, the two toes of the gripper of the sixth cylinder 583 open, causing the two toes of the sixth cylinder 582 to open onto the two free ends of the retaining ring 100 respectively. At this time, the retaining ring 100 undergoes elastic deformation, thereby causing the two free ends of the retaining ring 100 to generate friction with the two toes of the sixth cylinder 582 through the two side slots and move along with the six cylinders. Column 582 moves synchronously, then the sixth linear module B55 drives the pick-and-place assembly 58 to rise, the sixth linear module A54 drives the sixth linear module B55 to move above the product, the sixth linear module B55 drives the pick-and-place assembly 58 to move down, so that the opening of the retaining ring 100 is inserted into the product, then the two claws of the sixth cylinder gripper 581 close, so that the retaining ring 100 is reset, then the sixth cylinder 583 drives the pressure cylinder 584 to press down on the retaining ring 100 from the upper end face of the retaining ring 100, ensuring that the retaining ring 100 moves to the predetermined assembly position of the product and completes the assembly with the product.

[0054] In the above design, the structural design and specific implementation of the pick-and-place component 58 facilitate the transfer and assembly of the snap ring 100.

[0055] Specifically: such as Figure 1 and Figure 8 As shown, the conveyor line 3 includes a mounting frame 31 mounted on the frame 1, a line body 32 mounted on the mounting frame 31, a lifting assembly 33 mounted on the frame 1, and a clamping assembly 34 mounted on the mounting frame 31 for cooperating with the lifting assembly 33. The clamping assembly 34 includes a fixed frame 341 fixedly mounted on the mounting frame 31, a linear bearing 342 mounted vertically on the fixed frame 341, a lifting shaft 343 sleeved on the linear bearing 342, a No. 7 pressure plate 344 mounted on the upper end of the lifting shaft 343, and a No. 7 cylinder 345 mounted on the fixed frame 341 for driving the No. 7 pressure plate 344 to lift. The No. 7 pressure plate 344 is provided with a vertical hole for avoiding the transfer mechanism 5.

[0056] In actual use, after the tray 2 is conveyed to the top of the lifting assembly 33 along with the production line 32, the lifting assembly 33 lifts the tray 2 off the production line 32, and then the pressing assembly 34 presses the product onto the tray 2. When the pressing assembly 34 presses, the seventh pressure plate 344 is driven down by the seventh cylinder 345. During the downward pressing process, the seventh pressure plate 344 drives the lifting shaft 343 to move down along the linear bearing 342 until the seventh pressure plate 344 presses the product down. Then, the transfer mechanism 5 assembles the retaining ring 100 onto the product through the vertical hole. After assembly, the pressing assembly 34 and the lifting assembly 33 reset, allowing the tray 2 to be supported by the production line 32 again.

[0057] In the above design, the structural design and specific implementation of the conveyor line 3 facilitate the conveying and lifting of the pallet 2, and facilitate the assembly of the products on the pallet 2 with the snap ring 100.

[0058] The second embodiment provided in this application is a snap ring assembly method using the snap ring assembly device, comprising the following steps: S1, the positioning mechanism 6 receives the material: the output end of the first cylinder 62 extends, so that the material receiving end face of the receiving platform is at the receiving height, and the pressing member 68 drives the flange post 67 to descend along the vertical through hole of the receiving platform 66 to below the bottom surface of the material discharge groove, while compressing the spring 65; S2, the feeding mechanism 4 transports the snap ring 100 to the receiving platform 66; S3, the output end of the first cylinder 62 retracts, driving the entire receiving platform 66 to descend, so that the flange post 67 moves down synchronously to complete the reset of the feeding mechanism 4 and avoid the obstruction; S4, the pressing member 68 releases the pressure on the flange post 67, and under the reset action of the spring 65, the flange post 67 is driven along the vertical through hole of the receiving platform 66 to below the bottom surface of the material discharge groove, while compressing the spring 65; The vertical through hole of the receiving platform 66 rises and passes through the opening of the retaining spring 100, so that the retaining spring 100 is fitted onto the flange post 67; S5, the side push positioning component 69 positions: the drive push block 692 of the third cylinder 691 moves horizontally to one side of the flange post 67, so that the two side walls 690 of the push block 692 push the outer walls of the two free ends of the retaining spring 100 respectively. Since the two side walls 690 squeeze the two ends of the retaining spring 100 from both sides, the retaining spring 100 is forced to rotate around the flange post 67 in the horizontal plane to achieve positioning; S6, the side push positioning component 69 resets: the drive push block 692 of the third cylinder 691 disengages from the retaining spring 100; S7, the transfer mechanism 5 transfers the retaining spring 100 from the positioning mechanism 6 to the product on the tray 2 to achieve the assembly of the retaining spring 100.

[0059] In the above design, the snap ring assembly method enables the snap ring 100 to be aligned and positioned before assembly, without damaging the snap ring 100 during alignment and positioning.

[0060] In further detail, it should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A snap ring assembly device, comprising a frame (1), a tray (2), a conveyor line (3) disposed on the frame (1) for conveying the tray (2), a feeding mechanism (4) disposed on the frame (1), and a transfer mechanism (5) disposed on the frame (1), characterized in that: It also includes a positioning mechanism (6) set on the frame (1). The positioning mechanism (6) includes a support assembly (61) set on the frame (1), a first cylinder (62) set vertically on the support assembly (61), a first plate (63) driven to rise and fall by the first cylinder (62), a positioning pin (64) set on the first plate (63), a spring (65) sleeved on the positioning pin (64), a receiving platform (66) set on the first plate (63) and having a vertical through hole and a feeding end face, a flange column (67) slidably connected to the receiving platform (66) through the vertical through hole, a pressing member (68) set on the support assembly (61) for driving the flange column (67) to fall below the feeding end face, and a side-push positioning member (69) set on the receiving platform (66). The flange column (67) is provided with a positioning hole slidably connected to the positioning pin (64) and a step abutting against the upper end of the spring (65).

2. The snap ring assembly device according to claim 1, characterized in that: The flange post (67) includes a cylinder (671) and a flange (672) disposed under the cylinder (671). The positioning hole is disposed axially inside the cylinder (671). The pressing member (68) includes a second cylinder (681) disposed vertically on the support assembly (61) and a second pressure plate (682) disposed at the output end of the second cylinder (681). The lower end face of the second pressure plate (682) abuts against the upper end face of the flange (672).

3. The snap ring assembly device according to claim 2, characterized in that: The receiving platform (66) is provided with a groove on one side of the vertical through hole. The side-push positioning component (69) includes a No. 3 cylinder (691) horizontally arranged on the receiving platform (66) and a push block (692) arranged at the output end of the No. 3 cylinder (691). The push block (692) slides along the groove and the upper end face of the push block (692) protrudes from the upper end face of the receiving platform (66). The push block (692) is provided with a positioning groove facing the vertical through hole. The positioning groove includes a bottom wall and side walls (690) symmetrically arranged on both sides of the positioning groove along the flange post (67). The side walls (690) are used to squeeze the two ends of the retaining spring sleeved on the flange post (67).

4. The snap ring assembly device according to claim 3, characterized in that: The receiving platform (66) is provided with a clearance groove (661), and the second pressure plate (682) extends into the clearance groove (661).

5. The snap ring assembly device according to claim 1, characterized in that: The support assembly (61) includes a fourth support (611) mounted on the frame (1), a fourth linear guide rail (612) mounted on the fourth support (611), a sliding seat (613) slidably mounted on the fourth linear guide rail (612), and a fourth cylinder (614) mounted on the fourth support (611) for driving the sliding seat (613) to slide along the fourth linear guide rail (612).

6. The snap ring assembly device according to claim 1, characterized in that: The feeding mechanism (4) includes a vibratory plate (41) mounted on the frame (1), a straight vibrator (42) connected to the vibratory plate (41), and a transfer assembly (43) mounted on the frame (1). The transfer assembly (43) includes a fifth support (431) mounted on the frame (1), a receiving seat (432) mounted on the fifth support (431), a fifth cylinder (433) mounted horizontally on the fifth support (431), and a fifth cylinder gripper (434) mounted vertically at the output end of the fifth cylinder (433). The fifth cylinder (433) drives the cylinder gripper to move horizontally, and the fifth cylinder gripper (434) is used to clamp the snap ring (100) on the receiving seat (432).

7. The snap ring assembly device according to claim 1, characterized in that: The transfer mechanism (5) includes a No. 6 support (51) mounted on the frame (1), a No. 6 linear guide rail (52) mounted on the No. 6 support (51) along the Y-axis, a sliding frame (53) slidably mounted on the No. 6 linear guide rail (52), a No. 6 linear module A (54) mounted on the No. 6 support (51) for driving the sliding frame (53) to slide along the No. 6 linear guide rail (52), a No. 6 linear module B (55) vertically mounted on the sliding frame (53), a connecting frame (56) mounted at the output end of the No. 6 linear module B (55), a CCD inspection camera (57) mounted side by side on the connecting frame (56), and a pick-and-place assembly (58).

8. The snap ring assembly device according to claim 7, characterized in that: The pick-and-place assembly (58) includes a sixth cylinder gripper (581) mounted on a connecting frame (56), two sixth columns (582) driven by the two claw toes of the sixth cylinder gripper (581), a sixth cylinder (583) mounted vertically on the connecting frame (56), and a pressure cylinder (584) mounted at the output end of the sixth cylinder (583).

9. The snap ring assembly device according to claim 1, characterized in that: The conveyor line (3) includes a mounting frame (31) mounted on the frame (1), a line body (32) mounted on the mounting frame (31), a lifting assembly (33) mounted on the frame (1), and a clamping assembly (34) mounted on the mounting frame (31) for cooperating with the lifting assembly (33). The clamping assembly (34) includes a fixed frame (341) fixedly mounted on the mounting frame (31), a linear bearing (342) mounted vertically on the fixed frame (341), a lifting shaft (343) sleeved on the linear bearing (342), a No. 7 pressure plate (344) mounted on the upper end of the lifting shaft (343), and a No. 7 cylinder (345) mounted on the fixed frame (341) for driving the No. 7 pressure plate (344) to lift.

10. A snap ring assembly method, employing the snap ring assembly device according to any one of claims 1 to 3, characterized in that: The steps include: S1, the positioning mechanism (6) receives the material: the output end of the first cylinder (62) extends, so that the material receiving end face of the receiving platform is at the receiving height, the pressing part (68) drives the flange column (67) to descend along the vertical through hole of the receiving platform (66) to below the bottom of the material trough, and at the same time compresses the spring (65); S2, the feeding mechanism (4) transports the snap ring to the receiving platform (66); S3, the output end of the first cylinder (62) retracts, driving the entire receiving platform (66) to descend, so that the flange column (67) moves down synchronously to complete the reset of the feeding mechanism (4) and avoid the position; S4, the pressing part (68) releases the pressing on the flange column (67), and under the reset action of the spring (65), the flange column (67) is driven to rise along the vertical through hole of the receiving platform (66) and pass through the opening of the snap ring, so that the snap ring is locked. The spring is sleeved on the flange post (67); S5, the side push positioning component (69) is positioned: the drive push block (692) of the third cylinder (691) moves horizontally to one side of the flange post (67), so that the two side walls (690) of the push block (692) push the outer walls of the two free ends of the snap ring (100) respectively. Since the two side walls (690) squeeze the two ends of the snap ring (100) from both sides respectively, the snap ring (100) is forced to rotate around the flange post (67) in the horizontal plane to achieve positioning; S6, the side push positioning component (69) is reset: the drive push block (692) of the third cylinder (691) disengages from the snap ring (100); S7, the transfer mechanism (5) transfers the snap ring (100) from the positioning mechanism (6) to the product on the tray (2) to achieve the assembly of the snap ring (100).

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