Automatic assembly machine for snap-fit expansion joints

Abstract

The present application relates to a kind of buckle type expansion joint automatic assembly machine, the present application relates to a kind of buckle type expansion joint automatic assembly machine, conveying device is arranged on rack, conveying device is used to convey assembly structure, conveying device is provided with multiple support disc, main body assembly device is placed to support disc on main body.The first clamping unit of sealing ring assembly device clamps and places sealing ring into corresponding main body in transport.The pressing block is located in the upper end of the shaping ring, for the sealing ring clamped in the shaping ring is pressed into the corresponding position of main body.Gasket assembly device is connected with the main body of sealing ring buckling connection.The buckle type expansion joint automatic assembly machine is clamped by the inner side wall of shaping ring, shaping ring is arranged as annular structure, can ensure that sealing ring is not deformed in clamping and transport, pressing block is pressed into main body in sealing ring, significantly improve the efficiency of assembly.

Description

Technical Field

[0001] This invention relates to the field of automatic assembly equipment for snap-fit ​​expansion joints, and particularly to an automatic assembly machine for snap-fit ​​expansion joints. Background Technology

[0002] In existing assembly machines, the sealing rings are directly gripped and transported by a robotic arm and then placed in the corresponding position on the main body. Because the sealing rings are made of flexible material, they are easily deformed during the gripping process by the robotic arm, affecting their placement in the main body and resulting in low assembly efficiency.

[0003] Therefore, there is a need to provide an automatic assembly machine for snap-fit ​​expansion joints to solve the above problems. Summary of the Invention

[0004] This invention relates to an automatic assembly machine for snap-fit ​​telescopic joints. The automatic assembly machine for snap-fit ​​telescopic joints uses the inner wall of a shaping ring to clamp the sealing ring. The shaping ring is designed as a ring structure, which can ensure that the sealing ring does not deform during clamping and transportation. The pressing block presses the sealing ring into the main body, which significantly improves the assembly efficiency and solves the problem of low assembly efficiency caused by the deformation of the sealing ring during the gripping process of the robotic arm in the prior art.

[0005] To address the aforementioned problems, the present invention provides: an automatic assembly machine for snap-fit ​​telescopic joints, used for assembling a main body, a sealing ring, and a cover, comprising:

[0006] frame;

[0007] A conveying device is mounted on the frame and is used to convey the assembled structure. The conveying device is equipped with multiple support plates for placing the main body.

[0008] A main body assembly device for placing the main body onto the support plate;

[0009] A sealing ring assembly device includes a first clamping unit for clamping and transporting the sealing ring onto a conveying device and placing it into a corresponding body. The first clamping unit includes a first horizontal drive module, a first lifting module, and a first clamping module. The output shaft of the first horizontal drive module is connected to the first lifting module. The first clamping module includes a shaping ring and a pressing block. The output shaft of the first lifting module is connected to the pressing block, and the shaping ring is fixedly connected to the first lifting module. The pressing block is located at the upper end of the shaping ring and is used to press the sealing ring clamped within the shaping ring to the corresponding position on the body.

[0010] A cover assembly device is mounted on the frame and is used to fasten and connect the cover to the main body on which a sealing ring is installed.

[0011] Furthermore, the shaping ring is hollow inside, and the inner diameter of the shaping ring is equal to or less than a set threshold of the outer diameter of the sealing ring, which facilitates clamping the sealing ring and maintaining its shape.

[0012] Furthermore, the lower end of the shaping ring is provided with a guide slope, the outer diameter of which gradually decreases from top to bottom, making it easier to insert the sealing ring into the main body and improving assembly efficiency.

[0013] Furthermore, the first clamping module also includes a fixed base, multiple adjusting blocks, and multiple connecting plates. The fixed base is fixedly connected to the first lifting module, and the fixed base is configured with a cylindrical structure to reduce space occupation. Multiple adjusting blocks are evenly distributed on the lower periphery of the fixed base, and the lower end of each adjusting block is fixedly connected to one side of a connecting plate. The connecting plate is configured with an L-shaped structure, and the other side of the connecting plate is fixedly connected to the outer periphery of the shaping ring, simplifying assembly and saving costs.

[0014] Furthermore, the lower end of the fixed base is provided with multiple slots at intervals, and the upper end of the adjusting block is engaged in the slots. The slots are used to adjust the position of the adjusting block in the radial direction, so that the equipment can adapt to sealing rings of different sizes and improve the compatibility of the equipment.

[0015] Furthermore, the lower end of the adjusting block is provided with two positioning blocks, which are spaced apart. The upper end of the connecting plate is correspondingly provided with a limiting block, which is sandwiched between the two positioning blocks. Each positioning block is provided with screw holes for screw connection between the adjusting block and the connecting plate, facilitating installation and disassembly and improving assembly efficiency.

[0016] Furthermore, a limiting groove for mounting the connecting plate is correspondingly provided on the side of the shaping ring, and a stop block is provided at the lower end of the limiting groove. The stop block is supported and connected to the lower end face of the connecting plate. The connecting plate is connected to the circumferential screw of the shaping ring, and the stop block helps to protect the threaded connection structure between the connecting plate and the shaping ring, thereby improving the service life of the equipment.

[0017] Furthermore, the pressing block is provided with multiple through holes at an annular interval. These holes are used for weight reduction and ventilation, thereby saving costs and improving assembly efficiency.

[0018] Furthermore, the main body has a through-hole internal structure, and the main body assembly device includes a main body conveying unit and a third clamping unit. The main body conveying unit is used to sequentially convey the main body, and the third clamping unit is located at the discharge port of the main body conveying unit. The third clamping unit includes a second horizontal drive module, a third lifting module, and a second robotic arm. The second horizontal drive module is mounted on the frame, and the third lifting module is fixedly connected to the drive shaft of the second horizontal drive module. The output shaft of the third lifting module is connected to the second robotic arm. The second robotic arm includes a second drive cylinder, a first gripper, and a second gripper. The output shaft of the second drive cylinder is connected to both the first and second grippers, which are spaced apart. The second drive cylinder is used to drive the first and second grippers to move away from or closer to each other; the opposite sides of the first and second grippers are in close contact with the inner wall of the main body for clamping and fixing the main body. The structure is simple and improves clamping efficiency.

[0019] Furthermore, the third clamping unit also includes a balancing module, which comprises a connecting seat and a balancing plate. The connecting seat is configured with an L-shaped structure and includes a first connecting segment and a second connecting segment. One end of the first connecting segment is fixedly connected to the second driving cylinder, and the other end of the first connecting segment is fixedly connected to one end of the second connecting segment. The lower surface of the second connecting segment is screwed to the balancing plate, which is horizontally positioned between the first gripper and the second gripper. The lower end faces of both ends of the balancing plate contact the upper end face of the main body, ensuring that the end face of the main body is horizontal during clamping, thereby increasing the contact area between the first gripper, the second gripper, and the main body, and improving clamping stability.

[0020] Furthermore, both ends of the balance plate are provided with enlarged ends, which are arranged in a fan shape to increase the contact area with the main body, thereby ensuring that the upper surface of the main body is set horizontally.

[0021] This invention, employing the aforementioned snap-fit ​​telescopic joint automatic assembly machine, offers the following advantages compared to existing technologies: The invention relates to a snap-fit ​​telescopic joint automatic assembly machine, comprising a frame, a conveying device, a main body assembly device, a sealing ring assembly device, and a cover assembly device. The conveying device is mounted on the frame and is used to convey the assembly structure. Multiple support plates are mounted on the conveying device, and these support plates are used to place the main body. The main body assembly device is used to place the main body onto the support plates. The sealing ring assembly device includes a first clamping unit, which is used to clamp the sealing ring onto the conveying device and place it into the corresponding part of the main body. The first clamping unit includes a first horizontal drive module, a first lifting module, and a first clamping module. The output shaft of the first horizontal drive module is connected to the first lifting module. The first clamping module includes a shaping ring and a pressing block. The output shaft of the first lifting module is connected to the pressing block, and the shaping ring is fixedly connected to the first lifting module. The pressing block is located at the upper end of the shaping ring and is used to press the sealing ring clamped within the shaping ring to the corresponding position on the main body. The cover assembly device is mounted on the frame and is used to fasten the cover to the main body with the sealing ring installed. This snap-fit ​​telescopic joint automatic assembly machine clamps the sealing ring through the inner wall of the shaping ring. The shaping ring is designed with a ring structure to ensure that the sealing ring does not deform during clamping and transportation. The pressing block presses the sealing ring into the main body, which significantly improves the assembly efficiency and solves the problem of low assembly efficiency in the prior art due to the deformation of the sealing ring during the gripping process of the robotic arm. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments are briefly introduced below. The drawings described below are only the corresponding drawings of some embodiments of the present invention.

[0023] Figure 1 This is a schematic diagram of an embodiment of the snap-fit ​​telescopic joint automatic assembly machine of the present invention.

[0024] Figure 2 This is a schematic diagram of the internal structure of an embodiment of the snap-fit ​​telescopic joint automatic assembly machine of the present invention.

[0025] Figure 3 for Figure 2 Top view.

[0026] Figure 4 This is a schematic diagram of the support plate of an embodiment of the snap-fit ​​telescopic joint automatic assembly machine of the present invention.

[0027] Figure 5 This is a schematic diagram of the main assembly device of the snap-fit ​​telescopic joint automatic assembly machine of the present invention.

[0028] Figure 6This is a schematic diagram of the structure of the second clamping unit of the snap-fit ​​telescopic joint automatic assembly machine of the present invention.

[0029] Figure 7 This is a schematic diagram of an embodiment of the sealing ring assembly device of the snap-fit ​​expansion joint automatic assembly machine of the present invention.

[0030] Figure 8 This is a schematic diagram of the sealing ring detection unit of the snap-fit ​​expansion joint automatic assembly machine of the present invention.

[0031] Figure 9 This is a schematic diagram of the structure of the second clamping unit of the snap-fit ​​telescopic joint automatic assembly machine of the present invention.

[0032] Figure 10 This is a schematic diagram of the structure of the first clamping unit of the snap-fit ​​telescopic joint automatic assembly machine of the present invention.

[0033] Figure 11 This is a schematic diagram of the structure of the first clamping module of the snap-fit ​​telescopic joint automatic assembly machine of the present invention.

[0034] Figure 12 This is a cross-sectional schematic diagram of an embodiment of the first clamping module of the snap-fit ​​telescopic joint automatic assembly machine of the present invention.

[0035] Figure 13 This is a schematic diagram of the structure of the shaping ring of an embodiment of the snap-fit ​​expansion joint automatic assembly machine of the present invention.

[0036] Figure 14 This is a schematic diagram of the structure of an embodiment of the cover assembly device of the snap-fit ​​telescopic joint automatic assembly machine of the present invention.

[0037] Figure 15 This is a schematic diagram of the structure of the third robotic arm of the snap-fit ​​telescopic joint automatic assembly machine of the present invention.

[0038] Figure 16 This is a schematic diagram of an embodiment of the assembly and testing device for the snap-fit ​​telescopic joint automatic assembly machine of the present invention.

[0039] Figure 17 This is a schematic diagram of the unloading device of an automatic assembly machine for snap-fit ​​telescopic joints according to the present invention.

[0040] In the diagram: 10. Automatic assembly machine for snap-fit ​​telescopic joints; 20. Frame; 30. Conveying device; 31. Support plate; 32. Spring buckle; 40. Main assembly device; 41. Main conveying unit; 42. Third clamping unit; 421. Second horizontal drive module; 422. Third lifting module; 423. Second robotic arm; 4231. Second drive cylinder; 4232. First gripper; 4233. Second gripper; 424. Balance module; 4241. Connecting seat; 4242. Balance plate; 50. Sealing ring assembly device; 51. 52. Sealing ring feeding unit; 521. First clamping unit; 522. First column; 523. First crossbeam; 524. First horizontal drive module; 525. First lifting module; 526. Mounting base; 527. Lifting motor; 528. Second lifting module; 529. First clamping module; 520. Shaping ring; 521. Pressing block; 522. Fixed base; 522. Adjusting block; 522. Connecting plate; 522. Alternating channel; 523. Positioning block; 524. Stop block; 525. Inner hole; 526. Sealing ring. 531. Ring detection unit; 532. Support rod; 533. Adjusting plate; 534. Adjusting rod; 535. Vision sensor; 54. Transfer table; 541. Support plate; 542. Connecting block; 543. Boss; 55. Second clamping unit; 551. Support; 552. First drive cylinder; 553. First robot arm; 5541. Rotary cylinder; 5542. Connecting rod; 5543. Transmission wheel; 5544. Belt; 555. Base; 60. Cover assembly device; 61. Cover conveying unit; 62. Fourth clamping unit; 621. ... 622. Third horizontal drive module; 623. Fourth lifting module; 624. Third robotic arm; 625. Third drive cylinder; 626. Third gripper; 626. Fourth gripper; 626. Pressing part; 70. Assembly and testing device; 71. Support frame; 72. Servo motor; 73. Balance bar; 74. Support block; 75. Testing plate; 80. Unloading device; 81. Unloading clamping unit; 82. Unloading platform; 83. Baffle; 84. Good product unloading port; 85. Waste product unloading port; 91. Main body; 92. Sealing ring; 93. Cover. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] The directional terms mentioned in this invention, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", "top" and "bottom", are only for reference to the orientation of the accompanying drawings. The directional terms used are for the purpose of explaining and understanding this invention, and are not intended to limit this invention.

[0043] In the diagram, units with similar structures are represented by the same labels.

[0044] Please refer to Figure 1 , Figure 2 , Figure 3 In this embodiment, the main body 91 has a central through-hole, and a sealing ring 92 is placed inside the upper end of the main body 91. The cover 93 has a ring-shaped structure and is fastened to the upper end of the main body 91. The snap-fit ​​telescopic joint automatic assembly machine 10 includes a frame 20, a conveying device 30, a main body assembly device 40, a sealing ring assembly device 50, a cover assembly device 60, an assembly detection device 70, and a unloading device 80. The conveying device 30 is mounted on the frame 20 and is used to convey the assembled structure. Multiple support plates 31 are provided on the conveying device 30, and the support plates 31 are used to place the main body 91. Please refer to... Figure 4 At least one set of spring buckles 32 are provided on the side of the support plate 31. The spring buckles 32 protrude from the outer periphery of the support plate 31 to allow the main body 91 to be interference-fitted with the support plate 31. The main body assembly device 40, the sealing ring assembly device 50, the cover assembly device 60, the assembly detection device 70, and the unloading device 80 are arranged in a ring on the conveying device 30.

[0045] In this embodiment, please refer to Figure 5 , Figure 6 The main assembly device 40 is used to place the main body 91 onto the support plate 31. The main assembly device 40 includes a main body conveying unit 41 and a third clamping unit 42. The main body conveying unit 41 is used to convey the main body 91 sequentially, and the third clamping unit 42 is located at the discharge port of the main body conveying unit 41. The third clamping unit 42 includes a second horizontal drive module 421, a third lifting module 422, a second robot arm 423, and a balancing module 424. The second horizontal drive module 421 is mounted on the frame 20, the third lifting module 422 is fixedly connected to the drive shaft of the second horizontal drive module 421, and the output shaft of the third lifting module 422 is connected to the second robot arm 423.

[0046] The second robotic arm 423 includes a second drive cylinder 4231, a first gripper 4232, and a second gripper 4233. The output shaft of the second drive cylinder 4231 is connected to both the first gripper 4232 and the second gripper 4233, which are spaced apart. The second drive cylinder 4231 drives the first gripper 4232 and the second gripper 4233 to move away from or closer to each other. The opposite sides of the first gripper 4232 and the second gripper 4233 are in close contact with the inner wall of the main body 91, used to clamp and fix the main body 91. The structure is simple and improves clamping efficiency. The first gripper 4232 and the second gripper 4233 have the same structure. The side of the first gripper 4232 and the second gripper 4233 adjacent to each other is set as a flat surface, and the two sides of the side of the first gripper 4232 that contacts the main body 91 are respectively set as curved surfaces, so that the first gripper 4232 fits the main body 91 more closely and improves the clamping effect.

[0047] The balancing module 424 includes a connecting base 4241 and a balancing plate 4242. The connecting base 4241 is L-shaped and includes a first connecting section and a second connecting section. One end of the first connecting section is fixedly connected to the second drive cylinder 4231, and the other end of the first connecting section is fixedly connected to one end of the second connecting section. The lower surface of the second connecting section is screwed to the balancing plate 4242, which is horizontally positioned between the first gripper 4232 and the second gripper 4233. The lower end faces of both ends of the balancing plate 4242 contact the upper end face of the main body 91, ensuring that the end face of the main body 91 is horizontal during clamping, thereby increasing the contact area between the first gripper 4232, the second gripper 4233, and the main body 91, and improving clamping stability. Both ends of the balancing plate 4242 are provided with enlarged ends, which are fan-shaped, further increasing the contact area between the balancing plate 4242 and the main body 91, thus ensuring that the upper end face of the main body 91 is horizontal. At the same time, it also makes it easier for the balance plate 4242 to press the main body 91 into the support plate 31.

[0048] The second horizontal drive module 421 simultaneously drives the third lifting module 422, the second robotic arm 423, and the balancing module 424 to move to the discharge port position of the main conveying unit 41. The third lifting module 422 drives the second robotic arm 423 and the balancing module 424 to move downwards until the balancing plate 4242 abuts against the main body 91, and both ends of the balancing plate 4242 are in contact with the upper surface of the main body 91. The second drive cylinder 4231 drives the first gripper 4232 and the second gripper 4233 to move away from each other, so that the curved surfaces of the sides of the first gripper 4232 and the second gripper 4233 are pressed against the inner wall of the main body 91. The third lifting module 422 drives the second robotic arm 423, the balancing module 424, and the main body 91 to rise, and the second horizontal drive module 421 drives the third lifting module 422, the second robotic arm 423, the balancing module 424, and the main body 91 to be transported above the support plate 31. The third lifting module 422 drives the second robotic arm 423, the balancing module 424, and the main body 91 to descend. Under the pressure of the balancing plate 4242, the main body 91 is fitted onto the support plate 31. The second drive cylinder 4231 drives the first gripper 4232 and the second gripper 4233 to move closer together, releasing the main body 91. The third lifting module 422 drives the second robotic arm 423 and the balancing module 424 to rise, and the second horizontal drive module 421 drives the third lifting module 422, the second robotic arm 423, and the balancing module 424 back to the discharge port position of the main body conveying unit 41 to begin the next round of feeding. The conveying device 30 transports the main body 91 on the support plate 31 to the corresponding installation position of the sealing ring assembly device 50.

[0049] In this embodiment, please refer to Figure 7 The sealing ring assembly device 50 includes a sealing ring feeding unit 51, a first clamping unit 52, a sealing ring detection unit 53, a transfer table 54, and a second clamping unit 55. The sealing ring feeding unit 51 provides the sealing ring 92. The sealing ring detection unit 53 is located on one side of the sealing ring feeding unit 51 and is used to detect the front and back of the sealing ring 92. A groove is provided on the back of the sealing ring 92; if a groove is detected, it indicates that the sealing ring 92 is facing up and needs to be flipped to face up. The transfer table 54 is used to transfer and place the sealing ring 92. The second clamping unit 55 is located between the outlet of the sealing ring feeding unit 51 and the transfer table 54, and is used to clamp the sealing ring 92 from the sealing ring feeding unit 51 and place it on the transfer table 54 with the front facing up, improving assembly efficiency and yield. The first clamping unit 52 is used to transfer the sealing ring 92 on the transfer table 54 and press it into the main body 91.

[0050] Please refer to Figure 8The sealing ring detection unit 53 includes a support rod 531, an adjusting plate 532, an adjusting rod 533, and a vision sensor 534. The support rod 531 is erected on one side of the outlet of the sealing ring feeding unit 51. The adjusting plate 532 is fixedly installed on the upper end of the support rod 531, with a fixing groove at one end. One end of the adjusting plate 532 is horizontally inserted into the fixing groove. The vision sensor 534 is fixed to the other end of the adjusting rod 533 and is located directly above the sealing ring 92 at the outlet of the sealing ring feeding unit 51, used to detect the front and back of the sealing ring 92. If the sealing ring 92 is reversed, it needs to be flipped to the front using a flipping module and placed on the transfer table 54; if the sealing ring 92 is the front, it is directly placed on the transfer table 54, improving work efficiency.

[0051] In this embodiment, please refer to Figure 9 The second clamping unit 55 includes a support 551, a second drive cylinder 4231, two first robotic arms 553, a flipping module, and a base 555. The support 551 is slidably connected to the base 555 and is positioned below the outlet of the sealing ring feeding unit 51. One first robotic arm 553 is positioned on one side of the support 551, and the other first robotic arm 553 is positioned on the other side of the support 551. The two first robotic arms 553 are located on opposite sides of the outlet of the sealing ring feeding unit 51.

[0052] The second drive cylinder 4231 is mounted on the base 555. The output shaft of the second drive cylinder 4231 is fixedly connected to the support 551 and is used to drive the support 551 to reciprocate between the outlet of the sealing ring feeding unit 51 and the transfer table 54, thereby improving the efficiency of transfer.

[0053] A flipping module is mounted on support 551. This module drives the two first robotic arms 553 to rotate simultaneously, significantly improving flipping efficiency and saving costs. The flipping module includes a rotary cylinder 5541, a connecting rod 5542, four transmission wheels 5543, and two belts 5544. The rotary cylinder 5541 is located on one side of support 551, and the connecting rod 5542 is rotatably mounted on support 551. One end of the connecting rod 5542 is fixedly connected to the output shaft of the rotary cylinder 5541. Each first robotic arm 553 has one transmission wheel 5543 fixedly connected to it, and the other two transmission wheels 5543 are respectively fixedly mounted at both ends of the connecting rod 5542. Each belt 5544 connects the first robotic arm 553 on the same side to the transmission wheel 5543 on the connecting rod 5542. The rotary cylinder 5541 drives the connecting rod 5542 to rotate, and the connecting rod 5542 drives the two first robotic arms 553 to rotate synchronously via the transmission wheels 5543 and belts 5544. It has a compact structure and is easy to install and dismantle.

[0054] A transfer table 54 is located on the side of the support 551 away from the sealing ring feeding unit 51, and is used to place the flipped sealing ring 92. The transfer table 54 includes a support plate 541, a connecting block 542, and a boss 543. The support plate 541 stands upright at the end of the support 551 away from the sealing ring feeding unit 51. The connecting block 542 has an adjustment groove, and is connected to the upper end of the support plate 541 by screws passing through the adjustment groove, facilitating easy installation and removal, improving compatibility and transfer efficiency. The boss 543 is fixedly connected to the connecting block 542. The boss 543 is frustum-shaped, with the lower cross-sectional area larger than the upper cross-sectional area. An annular placement platform is located at the lower end of the frustum, facilitating the placement of the flipped sealing ring 92. The boss 543 also includes two clearance slots, which are stacked around the periphery of the boss 543 to avoid obstruction from the two first robotic arms 553, improving work efficiency.

[0055] In this embodiment, please refer to Figure 10 The first clamping unit 52 includes a first column 521, a first crossbeam 522, a first horizontal drive module 523, a first lifting module 524, a second lifting module 525, and a first clamping module 526. The first crossbeam 522 is mounted on the first column 521. The first horizontal drive module 523 is mounted on the first crossbeam 522. The second lifting module 525 is fixedly connected to the first horizontal drive module 523 and is used to drive the second lifting module 525 to reciprocate along the length direction of the first crossbeam 522.

[0056] The first lifting module 524 includes a mounting base 5241 and a lifting motor 5242. The mounting base 5241 is fixedly connected to the output shaft of the lifting cylinder in the second lifting module 525. The second lifting module 525 drives the first lifting module 524 and the first clamping module 526 to move up and down. The lifting motor 5242 is fixed to the upper end of the mounting base 5241, and the fixing base 5263 is fixedly connected to the lower end of the mounting base 5241. The fixing base 5263 is provided with a through clearance channel 5266 along the axial direction. The output shaft of the lifting motor 5242 passes through the clearance channel 5266 and is fixedly connected to the pressing block 5262, resulting in a compact structure.

[0057] Please refer to Figure 11 , Figure 12 , Figure 13The first clamping module 526 includes a shaping ring 5261, a pressing block 5262, a fixed base 5263, multiple adjusting blocks 5264, and multiple connecting plates 5265. The fixed base 5263 is fixedly connected to the first lifting module 524 and is designed as a cylindrical structure to reduce space occupation. Multiple adjusting blocks 5264 are evenly distributed on the lower periphery of the fixed base 5263, and the lower end of each adjusting block 5264 is fixedly connected to one side of a connecting plate 5265. Specifically, multiple slots are spaced apart at the lower end of the fixed base 5263, and the upper ends of the adjusting blocks 5264 are engaged in the slots. The slots are used to adjust the position of the adjusting blocks 5264 in the radial direction, so that the device can adapt to sealing rings 92 of different sizes and improve the compatibility of the device. In this embodiment, three adjusting blocks 5264 and three connecting plates 5265 are provided, evenly distributed on the fixed base 5263.

[0058] The lower end of the adjusting block 5264 is provided with two positioning blocks 5267, which are spaced apart. The upper end of the connecting plate 5265 is provided with a limit block, which is sandwiched between the two positioning blocks 5267. Each positioning block 5267 has screw holes for screw connection between the adjusting block 5264 and the connecting plate 5265, facilitating easy installation and removal and improving assembly efficiency. The connecting plate 5265 is designed with an L-shaped structure, and its other side is fixedly connected to the outer periphery of the shaping ring 5261, simplifying assembly and saving costs.

[0059] Please refer to Figure 13 The shaping ring 5261 is hollow inside, and its inner diameter is equal to or less than the outer diameter of the sealing ring 92 by a set threshold. A guide slope is provided at the lower end of the shaping ring 5261, with its outer diameter gradually decreasing from top to bottom, facilitating the insertion of the sealing ring 92 into the main body 91 and improving assembly efficiency. A limiting groove for mounting the connecting plate 5265 is provided on the side of the shaping ring 5261, and a stop block 5268 is provided at the lower end of the limiting groove, supporting the lower end face of the connecting plate 5265. The connecting plate 5265 is connected to the circumferential screws of the shaping ring 5261, and the stop block 5268 protects the threaded connection structure between the connecting plate 5265 and the shaping ring 5261, improving the service life of the equipment.

[0060] The pressing block 5262 is located at the upper end of the shaping ring 5261 and is used to press the sealing ring 92 clamped in the shaping ring 5261 to the corresponding position of the main body 91. The pressing block 5262 is provided with a plurality of through holes 5269 at an annular interval. The through holes 5269 are used to reduce weight and allow air to pass through, thereby saving costs and improving assembly efficiency.

[0061] In this embodiment, please refer to Figure 14 , Figure 15The cover assembly device 60 includes a cover conveying unit 61 and a fourth clamping unit 62. The cover conveying unit 61 is used to convey the cover 93 sequentially, and the fourth clamping unit 62 is used to transfer the cover 93 from the cover conveying unit 61 to the main body 91 and press the cover 93 into the upper end of the main body 91.

[0062] The fourth clamping unit 62 includes a third horizontal drive module 621, a fourth lifting module 622, and a third robotic arm 623. The third horizontal drive module 621 is mounted on the frame 20, the fourth lifting module 622 is fixedly connected to the drive shaft of the third horizontal drive module 621, and the output shaft of the fourth lifting module 622 is connected to the third robotic arm 623.

[0063] The third robotic arm 623 includes a second drive cylinder 6231, a third gripper 6232, and a fourth gripper 6233. The second drive cylinder 6231 drives the third gripper 6232 and the fourth gripper 6233 to move away from each other, so that the curved surfaces of the sides of the third gripper 6232 and the fourth gripper 6233 are pressed and connected to the inner wall of the cover 93. The third gripper 6232 and the fourth gripper 6233 have the same structure. One end of the third gripper 6232 is vertically arranged, and the other end of the third gripper 6232 is horizontally arranged. A pressing part 6234 is protruding from the end of the horizontal section of the third gripper 6232. The upper surface of the pressing part 6234 is flush with the upper surface of the horizontal section, and the lower surface of the pressing part 6234 contacts the upper surface of the cover 93, for pressing the cover 93 into the main body 91. Both the end faces of the horizontal section and the pressing part 6234 are curved, and the end of the horizontal section is in close contact with the inner wall of the cover 93. The third clamp 6232 and the fourth clamp 6233 clamp and fix the cover 93 through the corresponding horizontal sections.

[0064] The third horizontal drive module 621 drives the fourth lifting module 622 and the third robotic arm 623 to move to the discharge port position of the cover conveying unit 61. The fourth lifting module 622 drives the third robotic arm 623 to move downward, and the second drive cylinder 6231 drives the third gripper 6232 and the fourth gripper 6233 to move away from each other, so that the third gripper 6232 and the fourth gripper 6233 fix the cover 93. The fourth lifting module 622 drives the third robotic arm 623 and the cover 93 to rise, and the third horizontal drive module 621 drives the fourth lifting module 622, the third robotic arm 623 and the cover 93 to move above the main body 91 on the conveying device 30. The fourth lifting module 622 drives the third robotic arm 623 and the cover 93 to descend, and the pressing part 6234 presses the cover 93 into the corresponding position and depth. The second drive cylinder 6231 drives the third gripper 6232 and the fourth gripper 6233 to move closer to each other, releasing the cover 93. The fourth lifting module 622 drives the third robotic arm 623 to rise, and the third horizontal drive module 621 drives the fourth lifting module 622 and the third robotic arm 623 to move to the discharge port position of the cover conveying unit 61, ready for the next round of feeding.

[0065] In this embodiment, please refer to Figure 16 The assembly and testing device 70 includes a support frame 71, a servo motor 72, two balance bars 73, a support block 74, and a testing disc 75. The support frame 71 is mounted on the frame 20. The servo motor 72 is fixedly installed on the upper end of the support frame 71, and its output shaft is fixedly connected to the middle of the support block 74. The support block 74 is positioned below the servo motor 72, and a balance bar 73 is provided at both ends of the support block 74. One end of the balance bar 73 is movably connected to the upper end of the support frame 71, and the other end is fixedly connected to the end of the support block 74. The two balance bars 73 are used to keep the support block 74 horizontal. The upper end of the testing disc 75 is fixedly connected to the lower end of the support block 74, and the lower end of the testing disc 75 contacts the upper surface of the assembled cover 93.

[0066] During testing, the servo motor 72 drives the support block 74 and the detection plate 75 to move downward together until the lower end face of the detection plate 75 is in close contact with the upper end face of the cover 93. The control system obtains the downward movement height of the servo motor 72, calculates the error of the pressing depth of the cover 93, and compares the error with the preset threshold to determine whether the assembled main body 91 and cover 93 meet the accuracy requirements.

[0067] In this embodiment, please refer to Figure 17The unloading device 80 includes an unloading clamping unit 81 and an unloading platform 82. The unloading clamping unit 81 is mounted on the frame 20, and the unloading platform 82 is located on one side of the conveying device 30. The unloading clamping unit 81 clamps and transports the assembled main body 91 and cover 93 together onto the unloading platform. The unloading platform is inclined and has a good product unloading port 84 and a waste product unloading port 85. A rotating baffle 83 is installed at both the good product unloading port 84 and the waste product unloading port 85. When the assembled product is qualified, the baffle 83 blocks the inlet of the waste product unloading port 85, and the product moves out from the good product unloading port 84. When the assembled product is unqualified, the baffle 83 rotates and blocks the inlet of the good product unloading port 84, and the product moves out from the waste product unloading port 85, which significantly improves work efficiency and saves costs.

[0068] The working principle of this snap-fit ​​expansion joint automatic assembly machine 10 will be explained in detail below.

[0069] The first and second horizontal drive modules 421 simultaneously drive the third lifting module 422, the second robotic arm 423, and the balancing module 424 to move to the discharge port position of the main conveying unit 41. The third lifting module 422 drives the second robotic arm 423 and the balancing module 424 to move downwards until the balancing plate 4242 abuts against the main body 91, and both ends of the balancing plate 4242 are in contact with the upper surface of the main body 91. The second drive cylinder 4231 drives the first gripper 4232 and the second gripper 4233 to move away from each other, so that the curved surfaces of the sides of the first gripper 4232 and the second gripper 4233 are pressed against the inner wall of the main body 91. The third lifting module 422 drives the second robotic arm 423, the balancing module 424, and the main body 91 to rise, and the second horizontal drive module 421 drives the third lifting module 422, the second robotic arm 423, the balancing module 424, and the main body 91 to be transported above the support plate 31. The third lifting module 422 drives the second robotic arm 423, the balancing module 424, and the main body 91 to descend. Under the pressure of the balancing plate 4242, the main body 91 is fitted onto the support plate 31. The second drive cylinder 4231 drives the first gripper 4232 and the second gripper 4233 to move closer together, releasing the main body 91. The third lifting module 422 drives the second robotic arm 423 and the balancing module 424 to rise, and the second horizontal drive module 421 drives the third lifting module 422, the second robotic arm 423, and the balancing module 424 back to the discharge port position of the main body conveying unit 41 to begin the next round of feeding. The conveying device 30 transports the main body 91 on the support plate 31 to the corresponding installation position of the sealing ring assembly device 50.

[0070] Second, the sealing ring feeding unit 51 delivers the sealing ring 92 to the discharge port. The vision sensor 534 detects the front and back of the sealing ring 92. Two first robotic arms 553 simultaneously grip the sealing ring 92 and, under the action of the lifting cylinder, remove the sealing ring 92 from the discharge port. If the sealing ring 92 is detected as back, the rotary cylinder 5541 is activated, driving the two first robotic arms 553 to rotate synchronously 180 degrees via the connecting rod 5542, belt 5544, and transmission wheel 5543, flipping the sealing ring 92 to the front. If the sealing ring 92 is displayed as front, the second drive cylinder 4231 drives the support 551 from the discharge port of the sealing ring feeding unit 51 to the transfer table 54, where the two first robotic arms 553 place the sealing ring 92 onto the transfer table 54.

[0071] Third, the second lifting module 525 drives the first lifting module 524 and the first clamping module 526 to move downwards together. The shaping ring 5261 presses down, putting the sealing ring 92 inside the shaping ring 5261. The second lifting module 525 drives the first lifting module 524, the first clamping module 526, and the sealing ring 92 to move upwards together. The first horizontal drive module 523 drives the second lifting module 525, the first lifting module 524, the first clamping module 526, and the clamped sealing ring 92 to the position of the main body 91. At the same time, the second clamping unit 55 continues to clamp and transport the sealing ring 92 from the sealing ring feeding unit 51 to the transfer table 54.

[0072] Fourth, the first lifting cylinder in the second lifting module 525 drives the first lifting module 524, the first clamping module 526, and the sealing ring 92 to move downwards to the upper end of the main body 91. The lifting motor 5242 drives the pressing block 5262 to press down, pressing the sealing ring 92 into the main body 91. The lifting motor 5242 drives the pressing block 5262 to return to the initial position, and the second lifting module 525 returns the first lifting module 524 and the first clamping module 526 to the initial position, starting the next round of operation.

[0073] Fifth, the third horizontal drive module 621 drives the fourth lifting module 622 and the third robotic arm 623 to move to the discharge port position of the cover conveying unit 61. The fourth lifting module 622 drives the third robotic arm 623 to move downward, and the second drive cylinder 6231 drives the third gripper 6232 and the fourth gripper 6233 to move away from each other, so that the third gripper 6232 and the fourth gripper 6233 fix the cover 93. The fourth lifting module 622 drives the third robotic arm 623 and the cover 93 to rise, and the third horizontal drive module 621 drives the fourth lifting module 622, the third robotic arm 623 and the cover 93 to move above the main body 91 on the conveying device 30. The fourth lifting module 622 drives the third robotic arm 623 and the cover 93 to descend, and the pressing part 6234 presses the cover 93 into the corresponding position and depth. The second drive cylinder 6231 drives the third gripper 6232 and the fourth gripper 6233 to move closer to each other, releasing the cover 93. The fourth lifting module 622 drives the third robotic arm 623 to rise, and the third horizontal drive module 621 drives the fourth lifting module 622 and the third robotic arm 623 to move to the discharge port position of the cover conveying unit 61, ready for the next round of feeding.

[0074] Sixth, the servo motor 72 drives the support block 74 and the detection plate 75 to move down together until the lower end face of the detection plate 75 is in close contact with the upper end face of the cover 93. The control system obtains the downward movement height of the servo motor 72, calculates the error of the pressing depth of the cover 93, and compares the error with the preset threshold to determine whether the assembled main body 91 and cover 93 meet the accuracy requirements.

[0075] Seventh, when the assembled product is qualified, the baffle 83 blocks the feed inlet of the discard unloading port 85, and the product is removed from the good product unloading port 84. When the assembled product is unqualified, the baffle 83 rotates and blocks the feed inlet of the good product unloading port 84, and the product is removed from the discard unloading port 85.

[0076] In this embodiment, the present invention relates to an automatic assembly machine for snap-fit ​​telescopic joints. The automatic assembly machine for snap-fit ​​telescopic joints includes a frame, a conveying device, a main body assembly device, a sealing ring assembly device, and a cover assembly device. The conveying device is mounted on the frame and is used to convey the assembly structure. Multiple support plates are provided on the conveying device for placing the main body. The main body assembly device is used to place the main body onto the support plates. The sealing ring assembly device includes a first clamping unit, which is used to clamp the sealing ring onto the conveying device and place it into the corresponding part of the main body. The first clamping unit includes a first horizontal drive module, a first lifting module, and a first clamping module. The output shaft of the first horizontal drive module is connected to the first lifting module. The first clamping module includes a shaping ring and a pressing block. The output shaft of the first lifting module is connected to the pressing block, and the shaping ring is fixedly connected to the first lifting module. The pressing block is located at the upper end of the shaping ring and is used to press the sealing ring clamped in the shaping ring into the corresponding position of the main body. The cover assembly device is mounted on the frame and is used to fasten the cover to the main body with the sealing ring installed. This snap-fit ​​telescopic joint automatic assembly machine clamps the sealing ring through the inner wall of the shaping ring. The shaping ring is designed with a ring structure to ensure that the sealing ring does not deform during clamping and transportation. The pressing block presses the sealing ring into the main body, which significantly improves the assembly efficiency and solves the problem of low assembly efficiency in the prior art due to the deformation of the sealing ring during the gripping process of the robotic arm.

[0077] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the claims.

Claims

1. An automatic assembly machine for snap-fit ​​telescopic joints, used to assemble the main body, sealing ring, and cover, characterized in that, include: frame; A conveying device is mounted on the frame and is used to convey the assembled structure. The conveying device is equipped with multiple support plates for placing the main body. A main body assembly device, the main body assembly device being used to place the main body onto the support plate; A sealing ring assembly device includes a first clamping unit for clamping and transporting the sealing ring onto a conveying device and placing it into a corresponding body. The first clamping unit includes a first horizontal drive module, a first lifting module, and a first clamping module. The output shaft of the first horizontal drive module is connected to the first lifting module. The first clamping module includes a shaping ring and a pressing block. The output shaft of the first lifting module is connected to the pressing block, and the shaping ring is fixedly connected to the first lifting module. The pressing block is located at the upper end of the shaping ring and is used to press the sealing ring clamped within the shaping ring to the corresponding position on the body. A cover assembly device is mounted on the frame and is used to fasten and connect the cover to the main body on which a sealing ring is installed; The shaping ring is hollow inside, and the inner diameter of the shaping ring is equal to or less than a set threshold of the outer diameter of the sealing ring. The first clamping module further includes a fixed base, multiple adjusting blocks, and multiple connecting plates; the fixed base is fixedly connected to the first lifting module, and the fixed base is configured as a cylindrical structure; the multiple adjusting blocks are evenly distributed on the lower periphery of the fixed base, and the lower end of each adjusting block is fixedly connected to one side of a connecting plate; the connecting plate is configured as an L-shaped structure, and the other side of the connecting plate is fixedly connected to the outer periphery of the shaping ring; The lower end of the fixed base is provided with multiple slots at intervals, and the upper end of the adjusting block is engaged in the slots. The slots are used to adjust the position of the adjusting block in the radial direction.

2. The automatic assembly machine for snap-fit ​​telescopic joints according to claim 1, characterized in that, The lower end of the shaping ring is provided with a guide slope, and the outer diameter of the shaping ring gradually decreases.

3. The automatic assembly machine for snap-fit ​​telescopic joints according to claim 1, characterized in that, The lower end of the adjusting block is provided with two positioning blocks, which are spaced apart; the upper end of the connecting plate is provided with a limit block, which is sandwiched between the two positioning blocks; each positioning block is provided with a screw hole for screw connection between the adjusting block and the connecting plate.

4. The automatic assembly machine for snap-fit ​​telescopic joints according to claim 1, characterized in that, The pressing block has multiple through-holes arranged in a ring at intervals, which are used for weight reduction and ventilation.

5. The automatic assembly machine for snap-fit ​​telescopic joints according to claim 1, characterized in that, The main body has an internal through-hole structure. The main body assembly device includes a main body conveying unit and a third clamping unit. The main body conveying unit is used to convey the main body sequentially. The third clamping unit is located at the discharge port of the main body conveying unit. The third clamping unit includes a second horizontal drive module, a third lifting module, and a second manipulator. The second horizontal drive module is mounted on the frame. The third lifting module is fixedly connected to the drive shaft of the second horizontal drive module. The output shaft of the third lifting module is connected to the second manipulator. The second manipulator includes a second drive cylinder, a first gripper, and a second gripper. The output shaft of the second drive cylinder is connected to both the first gripper and the second gripper. The first gripper and the second gripper are spaced apart. The second drive cylinder is used to drive the first gripper and the second gripper to move away from or closer to each other. The opposite sides of the first gripper and the second gripper are in close contact with the inner wall of the main body for clamping and fixing the main body.

6. The automatic assembly machine for snap-fit ​​telescopic joints according to claim 5, characterized in that, The third clamping unit further includes a balancing module, which includes a connecting seat and a balancing plate. The connecting seat is configured with an L-shaped structure and includes a first connecting section and a second connecting section. One end of the first connecting section is fixedly connected to the second driving cylinder, and the other end of the first connecting section is fixedly connected to one end of the second connecting section. The lower surface of the second connecting section is screwed to the balancing plate. The balancing plate is horizontally positioned between the first clamp and the second clamp. The lower end faces of both ends of the balancing plate contact the upper end face of the main body to keep the end face of the main body horizontal during clamping.

7. The automatic assembly machine for snap-fit ​​telescopic joints according to claim 6, characterized in that, Both ends of the balance plate are provided with enlarged ends, which are arranged in a fan shape.

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