A male connector snap spring assembly mechanism and a quick connector male head assembly machine

Abstract

This invention relates to the technical field of assembly machines, and discloses a male connector snap ring assembly mechanism and a quick connector male connector assembly machine. The male connector snap ring assembly includes a snap ring, a stamping rod fixedly connected to the snap ring, a trigger plate disposed outside the stamping rod, and a mounting bracket fixedly connected to the outside of the snap ring. When the stamping rod and trigger plate move downwards, the middle of the male connector is supported by a stabilizing component. When the stamping rod moves downwards after being assembled with the snap ring and snap sleeve, the trigger plate gradually separates the casing from the snap ring. Multiple curved clamping plates contract synchronously, quickly clamping the middle of the male connector and indirectly providing limiting support for the internal spring. This counteracts the lateral bending moment generated during the downward pressing of the stamping rod, avoiding the problem of the internal spring bending and deforming due to axial pressure exceeding the critical load. Simultaneously, the trigger plate provides a stable reference for the subsequent assembly of the snap ring, snap sleeve, and male connector, strengthening the overall assembly structure and extending the service life of the finished product.

Description

Technical Field

[0001] This invention relates to the technical field of assembly machines, and more particularly to a male connector snap ring assembly mechanism and a quick connector male connector assembly machine. Background Technology

[0002] Male connectors are fittings with external threads or bosses, which are paired with female connectors to achieve a sealed connection of pipelines. Currently, automated assembly tooling mainly relies on snap ring assembly mechanisms. The snap ring and snap ring can be automatically delivered and placed on top of the male connector, and then compressed and embedded inside the male connector. In some male connectors, the built-in spring will be compressed into the male connector during assembly and compression. In this case, the snap ring cannot be placed directly on top of the male connector. A tooling sleeve needs to be set up to place both the snap ring and snap ring inside it, with the spring placed on top of the male connector, and then assembled together.

[0003] However, in the existing technology, during the assembly process of the connector assembly, since the ferrule needs to be pre-installed in the tooling sleeve, there are currently two methods for supporting the tooling sleeve. The first method uses frictional support, relying on the frictional force of the contact surface to offset the weight of the ferrule and the lateral force of assembly, preventing the ferrule from slipping off. However, the stability of this method is easily affected by external factors. Batch tolerances of the ferrule's outer diameter and oil stains or impurities on the contact surface can cause fluctuations in friction, leading to the ferrule slipping or tilting. Furthermore, if the frictional force is too high, the ferrule may not be able to detach quickly and smoothly, easily causing scratches and deformation of the outer wall, damaging the sealing performance. The second method reduces the diameter of the bottom hole of the tooling sleeve, creating a thin-walled elastic structure at the bottom. During ferrule pre-installation, the thin wall is squeezed to expand it. After it is in place, the thin wall rebounds and grips the ferrule to achieve positioning. During press-fitting, the punch pushes the thin wall to deform again and expand the hole diameter, allowing the ferrule to detach from the tooling. This method can lead to ferrule fatigue, a decrease in elastic modulus, and a gradual loss of positioning accuracy. The failure of the spring assembly affects the subsequent pressing accuracy. When the punch, sleeve, and circlip are successfully assembled to compress the spring, the spring only makes partial contact with the top of the connector at its bottom, leaving most of the spring body suspended and unsupported. This placement makes the spring body a cantilever beam structure. When the punch presses down, the pressure only acts on a local area at the top of the spring, making it difficult to ensure that the pressure is collinear with the axis. This directly leads to a lateral bending moment in the middle. In addition, the ratio of the spring's free height to the wire diameter is relatively large, making it a slender elastic element. The axial pressure is prone to exceed the critical buckling load, causing the middle part to bend to one side instead of contracting along the axis. This prevents the spring from smoothly entering the installation slot and can also squeeze the circlip and sleeve, causing a chain of failures and assembly stoppages. Furthermore, if the sleeve deforms, it will affect the subsequent pressing accuracy, amplify the spring's off-center bending, increase the defect rate, prolong the assembly time, increase tooling maintenance and parts scrap costs, and seriously affect the stability of the production line. Summary of the Invention

[0004] The purpose of this invention is to provide a male connector snap ring assembly mechanism and a quick connector male connector assembly machine, which solves the problem that the snap ring and spring cannot be effectively and stably assembled.

[0005] This invention proposes a male connector snap ring assembly mechanism, comprising a snap ring, a stamping rod fixedly connected to the snap ring, a trigger plate disposed outside the stamping rod, a mounting bracket fixedly connected to the outside of the snap ring, a tooling sleeve fixedly connected inside the mounting bracket, an encapsulation sleeve slidably connected to the outside of the tooling sleeve, a stabilizing component slidably connected inside the mounting bracket, and a push-pull device disposed below the snap ring. The top of the push-pull device holds the male connector and an internal spring. The inside of the tooling sleeve is used to house the snap ring and the snap ring. The encapsulation sleeve supports the snap ring inside the tooling sleeve. When the stamping rod and the trigger plate move downwards, the stabilizing component supports the middle of the male connector. When the stamping rod moves downwards after being assembled with the snap ring and the snap ring, the trigger plate causes the encapsulation sleeve to gradually separate from the snap ring.

[0006] Furthermore, the mounting bracket has multiple inclined blocks arranged at equal angles inside, with the top and bottom of the inclined blocks gradually tilting towards the tooling sleeve. The top of the inclined blocks is a vertical section. The mounting bracket has a guide groove, a through groove at the top, and a vertical groove and an inclined groove at the bottom. The vertical groove and the inclined groove are interconnected, with the inclined groove located below the vertical groove. The top and bottom of the inclined groove gradually tilt away from the tooling sleeve. The mounting bracket has multiple clearance slots arranged at equal angles at the bottom.

[0007] Furthermore, the stabilizing component includes a collar disposed inside the mounting frame, multiple guide rods disposed at equal angles and all fixedly connected to the collar, a pulley slidably connected inside the guide rod, an inclined plate fixedly connected to the pulley, a clamping plate fixedly connected to the bottom end of the inclined plate, a return spring connected between the pulley and the guide rod, a vertical plate fixedly connected to one of the guide rods, and a reset spring connected between the vertical plate and the mounting frame. The guide rod has a horizontal groove, and the vertical plate is located inside the guide groove.

[0008] Furthermore, the encapsulation sleeve includes a circular sleeve slidably connected to the outside of the tooling sleeve, an arc block fixedly connected to the top of the circular sleeve, a trigger spring connected between the circular sleeve and the mounting bracket, multiple brackets arranged at equal angles and fixedly connected to the bottom of the circular sleeve, and a baffle plate slidably connected to the bottom of the bracket. When the trigger spring is not deformed, the arc block is located inside the through groove. The bottom end of the bracket is provided with a straight groove strip. The baffle plate is provided with a roller at one end near the bracket. The roller is located inside the straight groove strip and the vertical groove.

[0009] Furthermore, the circular sleeve is always located above the inclined block, the width of the clearance slot is greater than the width of the clamping plate, the clamping plate is set to be curved and its inner diameter is equal to the outer diameter of the built-in spring, the number of clearance slots, guide rods and inclined blocks is equal, and the center lines of the three coincide, the pulley is tangent to the corresponding inclined block, and when the return spring is not deformed, the length of the transverse groove is equal to the distance between the clamping plate and the built-in spring.

[0010] Furthermore, the trigger plate includes a disc slidably connected to the outside of the stamping rod, a stop disc fixedly connected to the outside of the stamping rod, and a compression spring connected between the disc and the stop disc, wherein the spring force coefficient of the compression spring is greater than the sum of the spring force coefficients of the return spring and the trigger spring.

[0011] Furthermore, a protrusion is provided at the bottom of the disc, and a protruding rod is provided on the side of the disc near the vertical plate. The protruding rod is located above the protrusion, and a protruding strip is fixedly connected to the top of the vertical plate. When the trigger spring is not deformed, the height of the protrusion is equal to the vertical height from the top of the vertical groove to the bottom of the inclined groove.

[0012] Furthermore, the thickness of the protruding rod and the protruding strip is equal to the thickness of the disc, the protrusion is located directly above the arc block and the two are equal in shape and size, and when the stamping rod is spliced ​​with the snap ring and the snap sleeve, the protrusion fits into the arc block.

[0013] Furthermore, a telescopic device is fixedly connected to the top of the snap-fit ​​device, a cover is fixedly connected to the bottom of the telescopic device, and the top of the stamping rod is fixedly connected to the output end of the telescopic device.

[0014] Another aspect of the present invention provides: a quick connector male connector assembly machine, including a male connector snap ring assembly mechanism, and an assembler, wherein the top of the assembler is provided with a feeder, a gripper, a screener, a splicer, a left feeder and a right feeder, the snap ring is fixedly connected above the assembler, and the left feeder and the right feeder are respectively located on both sides of the snap ring.

[0015] The beneficial effects of this invention are:

[0016] By simultaneously contracting multiple curved clamping plates, the male end is quickly clamped in the middle and indirectly provides limiting support for the built-in spring, ensuring the coaxiality of the male end, the built-in spring, and the stamping rod. This effectively optimizes the spring's stress structure, counteracts the lateral bending moment generated during the stamping rod's downward pressing, and avoids the problem of the built-in spring bending and deforming due to axial pressure exceeding the critical load, thus reducing the assembly defect rate. At the same time, the trigger plate provides a stable benchmark for the subsequent splicing of the snap ring, sleeve, and male end, strengthening the overall assembly structure and extending the service life of the finished product.

[0017] By relying on the spring force coefficients of the clamping spring, return spring, and trigger spring through the trigger plate, step-by-step control is achieved. First, the stabilizing component is driven to smoothly enter its position and wait for the action. After the stamping rod, circlip, and sleeve are assembled, the encapsulation sleeve is driven to gradually complete the sleeve lifting and separation action. With the avoidance slot, inclined block layout, and size adaptation design of the mounting bracket, interference is avoided, ensuring smooth operation of high-frequency cyclic assembly, reducing the frequency of equipment failure and downtime, lowering maintenance costs, and adapting to the needs of large-scale mass production.

[0018] The coordinated automated actions of the feeder, gripper, screener, and pressing components form a complete closed-loop operation. From the feeding, screening, and pre-assembly of male heads and springs to the accurate feeding and final pressing and component reset of snap rings and sleeves, the entire process requires no manual intervention. This increases the assembly capacity per unit time, avoids errors caused by manual operation, and ensures the uniformity of assembly accuracy and structural strength of each group of workpieces in mass production. It provides stable support for standardized production and achieves a dual improvement in efficiency and product quality. Attached Figure Description

[0019] Figure 1 A first-person perspective three-dimensional structural diagram of the snap ring assembly mechanism;

[0020] Figure 2 This is a schematic diagram of the trigger disc of the snap ring assembly mechanism;

[0021] Figure 3 A top view of the snap ring assembly mechanism;

[0022] Figure 4 This is a diagram showing the state of the stamping rod of the snap ring assembly mechanism during assembly with the snap ring and the sleeve.

[0023] Figure 5 For snap ring assembly mechanism Figure 3 Sectional view at point AA;

[0024] Figure 6 A sectional view of the mounting bracket for the snap ring assembly mechanism;

[0025] Figure 7 This is a schematic diagram of the tooling sleeve for the snap ring assembly mechanism;

[0026] Figure 8 This is a structural diagram of the stabilizing component of the snap ring assembly mechanism;

[0027] Figure 9 A schematic diagram of the encapsulation sleeve for the snap ring assembly mechanism;

[0028] Figure 10 A partial sectional view of the mounting bracket for the snap ring assembly mechanism;

[0029] Figure 11 For snap ring assembly mechanism Figure 10Enlarged view of point B in the middle;

[0030] Figure 12 A three-dimensional structural diagram of a male head assembly machine.

[0031] In the picture:

[0032] 1. Snap-fit ​​connector; 101. Expansion joint; 102. Enclosure; 2. Stamping rod; 201. Snap ring; 202. Snap sleeve; 3. Trigger plate; 31. Disc; 311. Protrusion; 312. Protrusion rod; 32. Resistance plate; 33. Compression spring; 4. Mounting bracket; 41. Angled block; 411. Vertical section; 401. Guide groove; 402. Through groove; 403. Vertical groove; 404. Angled groove; 405. Clearance groove; 5. Tooling sleeve; 6. Encapsulation sleeve; 61. Circular sleeve; 62. Arc block; 63. Trigger spring 64. Spring; 641. Bracket; 65. Straight groove bar; 66. Baffle plate; 67. Roller; 78. Stabilizing component; 79. Collar; 70. Guide rod; 71. Horizontal groove; 72. Pulley; 73. Inclined plate; 74. Clamping plate; 75. Return spring; 76. Vertical plate; 771. Protruding strip; 78. Reset spring; 89. Push-pull device; 80. Male end; 81. Built-in spring; 92. Assembler; 93. Distributor; 94. Gripper; 95. Left feeder; 96. Right feeder. Detailed Implementation

[0033] 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.

[0034] Example 1, refer to Figures 1-12 This first embodiment of the invention provides a male connector snap ring assembly mechanism, including a snap ring 1, a stamping rod 2 fixedly connected to the snap ring 1, a trigger plate 3 disposed outside the stamping rod 2, a mounting bracket 4 fixedly connected outside the snap ring 1, a tooling sleeve 5 fixedly connected inside the mounting bracket 4, an encapsulation sleeve 6 slidably connected outside the tooling sleeve 5, a stabilizing component 7 slidably connected inside the mounting bracket 4, and a push-pull device 8 disposed below the snap ring 1. A male connector 81 and an internal spring 82 are placed on the top of the push-pull device 8. The inside of the tooling sleeve 5 is used to place the snap ring 201 and the snap sleeve 202. The encapsulation sleeve 6 is used to support the snap ring 201 inside the tooling sleeve 5. When the stamping rod 2 and the trigger plate 3 move down, the middle part of the male connector 81 is supported by the stabilizing component 7. When the stamping rod 2 moves down after being spliced ​​with the snap ring 201 and the snap sleeve 202, the encapsulation sleeve 6 is gradually separated from the snap ring 201 by the trigger plate 3.

[0035] Specifically, the stabilizing component 7 supports the middle part of the male end 81 when the stamping rod 2 and the trigger plate 3 move downwards, indirectly providing auxiliary positioning for the built-in spring 82. The stabilizing component 7 can limit the displacement of the male end 81 during the pressing process, ensuring that the male end 81 remains coaxial with the tooling sleeve 5 and the stamping rod 2, thereby keeping the axis of the built-in spring 82 consistent with the direction of the pressing force. At the same time, the stabilizing component 7 can form a hidden support for the middle area of ​​the built-in spring 82, changing the force structure of the built-in spring 82, effectively counteracting the lateral bending moment generated when the punch presses down, and preventing the built-in spring 82 from bending to one side due to the axial pressure exceeding the critical buckling load. The push-pull device 8 is set in the snap-fit ​​device 1. Below, the top is used to place the male head 81 and the built-in spring 82. When the stamping rod 2 moves down to start the pressing, the trigger plate 3 moves down synchronously and acts on the stabilizing component 7 first. However, at this time, the stabilizing component 7 will not be in contact with the built-in spring 82. When the stamping rod 2 is assembled with the snap ring 201 and the sleeve 202, the trigger plate 3 is in contact with the encapsulation sleeve 6. At this time, the trigger plate 3 moves down and drives the encapsulation sleeve 6 to slide along the outside of the tooling sleeve 5, so that the encapsulation sleeve 6 moves synchronously with the trigger plate 3. When the sleeve 202 is close to the built-in spring 82, the encapsulation sleeve 6 separates from the sleeve 202. At this time, the bottom of the sleeve 202 will quickly contact the top of the built-in spring 82, always ensuring the stability of the sleeve 202.

[0036] Reference Figures 1-11 The mounting bracket 4 has multiple inclined blocks 41 arranged at equal angles inside. The top and bottom of the inclined blocks 41 gradually slope towards the tooling sleeve 5. The top of the inclined blocks 41 is a vertical section 411. The mounting bracket 4 has a guide groove 401. The top of the mounting bracket 4 has a through groove 402. The bottom of the mounting bracket 4 has a vertical groove 403 and an inclined groove 404. The vertical groove 403 and the inclined groove 404 are interconnected. The inclined groove 404 is located below the vertical groove 403. The top and bottom of the inclined groove 404 gradually slope away from the tooling sleeve 5. The bottom of the mounting bracket 4 has multiple clearance slots 405 arranged at equal angles.

[0037] Specifically, the mounting bracket 4 has multiple inclined blocks 41 arranged at equal angles inside. The top and bottom of the inclined blocks 41 gradually tilt towards the tooling sleeve 5. When the stabilizing component 7 comes into contact with it, it will move towards the built-in spring 82 as guided by its surface. The top is provided with a vertical section 411, which can enhance the stability of the stabilizing component 7 when it comes into contact with the inclined block 41. The mounting bracket 4 has a guide groove 401 to provide guidance for the stabilizing component 7. The top of the mounting bracket 4 has a through groove 402 to accommodate the up and down movement of the encapsulation sleeve 6, while providing installation space for the tooling sleeve 5, avoiding structural interference, and ensuring smooth pressing action.

[0038] Reference Figures 1-8The stabilizing component 7 includes a collar 71 disposed inside the mounting frame 4, multiple guide rods 72 disposed at equal angles and fixedly connected to the collar 71, a pulley 73 slidably connected inside the guide rod 72, an inclined plate 74 fixedly connected to the pulley 73, a clamping plate 75 fixedly connected to the bottom end of the inclined plate 74, a return spring 76 connected between the pulley 73 and the guide rod 72, a vertical plate 77 fixedly connected to one of the guide rods 72, and a reset spring 78 connected between the vertical plate 77 and the mounting frame 4. The guide rod 72 has a horizontal groove 721, and the vertical plate 77 is located inside the guide groove 401.

[0039] Specifically, a horizontal groove 721 is provided on the guide rod 72. The pulley 73 is slidably connected inside the horizontal groove 721 of the guide rod 72 and fixedly connected to the inclined plate 74. The horizontal groove 721 is the sliding trajectory of the pulley 73, preventing the pulley 73 from deviating and getting stuck. When the pulley 73 contacts the inclined block 41, it can move along its inclined surface, driving the inclined plate 74 to move horizontally along the direction of the horizontal groove 721, thereby driving the bottom clamping plate 75 to open and close. The return spring 76 is connected between the pulley 73 and the guide rod 72, and can provide a reset spring force after the pulley 73 rolls along the inclined surface, driving the inclined plate 74 and the clamping plate 75 back to the initial position, preparing for the next assembly cycle. The vertical plate 77 is fixedly connected to one of the guide rods 72 and is correspondingly embedded in the guide groove 401 of the mounting bracket 4. On the one hand, the guide groove 401 constrains the overall movement direction of the stabilizing component 7, ensuring that its up and down sliding trajectory remains parallel to the axis of the tooling sleeve 5. On the one hand, it can transmit the triggering force to drive the stabilizing component 7 to move synchronously. The return spring 78 is connected between the vertical plate 77 and the mounting bracket 4, providing the overall reset power for the stabilizing component 7. After the pressing is completed, the return spring 78 retracts and pulls the vertical plate 77 to move upward along the guide groove 401, driving the entire stabilizing component 7 back to the initial position, improving the degree of automation. When the collar 71 moves, the pulley 73 rolls along the inclined surface of the inclined block 41, compressing the return spring 76 and pushing the inclined plate 74 to drive the clamping plate 75 to retract inward, clamping the middle of the male head 81, indirectly providing auxiliary positioning for the built-in spring 82. The multi-point uniform clamping of the clamping plate 75 can limit the displacement of the built-in spring 82 during the pressing process, ensuring coaxiality, thereby making the axis of the built-in spring 82 consistent with the direction of the pressing force, while forming a hidden support for the middle area of ​​the built-in spring 82, changing the force structure of the spring, and effectively offsetting the lateral bending moment generated when the punch is pressed down.

[0040] Reference Figures 1-10The encapsulation sleeve 6 includes a circular sleeve 61 slidably connected to the outside of the tooling sleeve 5, an arc block 62 fixedly connected to the top of the circular sleeve 61, a trigger spring 63 connected between the circular sleeve 61 and the mounting bracket 4, multiple brackets 64 arranged at equal angles and fixedly connected to the bottom of the circular sleeve 61, and a baffle plate 65 slidably connected to the bottom of the bracket 64. When the trigger spring 63 is not deformed, the arc block 62 is located inside the through groove 402. The bottom end of the bracket 64 is provided with a straight groove 641. The end of the baffle plate 65 near the bracket 64 is provided with a roller 651. The roller 651 is located inside the straight groove 641 and the vertical groove 403. Since the vertical groove 403 and the oblique groove 404 are interconnected, the roller 651 will be guided by both to move vertically first and then horizontally, so that the ferrule 202 is as close as possible to the built-in spring 82.

[0041] Specifically, the circular sleeve 61 is slidably mounted on the outside of the tooling sleeve 5. Its inner wall fits tightly against the outer wall of the tooling sleeve 5 and is smooth to ensure smooth up-and-down sliding. The sliding trajectory is constrained by the mating surface to ensure that the circular sleeve 61 is always coaxial with the tooling sleeve 5. The curvature of the arc block 62 matches the curvature of the inner wall of the through groove 402 at the top of the mounting bracket 4. When the trigger spring 63 is in the initial undeformed state, the arc block 62 is precisely embedded inside the through groove 402. The trigger spring 63 connects the circular sleeve 61 and the mounting bracket 4, providing automatic reset power for the entire encapsulation sleeve 6. In the initial state, the elastic force lifts the circular sleeve 61, making the arc block 62 stably stuck in the through groove 402, maintaining the support state of the retainer plate 65 for the sleeve 202. When the trigger disc 3 presses down to drive the encapsulation sleeve 6 to move downward, the trigger spring 63 is compressed and accumulates elastic force. After the pressing is completed and the trigger disc 3 moves upward, the trigger spring 63 resets and pushes the circular sleeve 61 upward, driving the entire encapsulation sleeve. 6. Returning to the initial position prepares for the next pre-assembly, ensuring the continuity of the assembly cycle. Multiple brackets 64 are fixedly connected at equal angles at the bottom of the round sleeve 61 to ensure that the supporting force is evenly distributed to form multi-point support and avoid single-point support. The brackets 64 pass between the vertical groove 403 and the oblique groove 404. A straight groove 641 is provided at the bottom of the bracket 64. The roller 651 of the baffle plate 65 is slidably connected to the bottom of the bracket 64. The roller 651 is embedded in the straight groove 641 and can move along the straight groove 641. During the pre-assembly stage, the baffle plate 65 is in the upper position under the action of the trigger spring 63, forming a stable lifting support for the internal ferrule 202 from the bottom of the tooling sleeve 5. When the stamping rod 2 and the trigger plate 3 move down, the trigger plate 3 squeezes the arc block 62, driving the round sleeve 61 to move down along the outer wall of the tooling sleeve 5, and simultaneously pulling the bracket 64 and the baffle plate 65 down, so that the baffle plate 65 gradually moves down. When the ferrule 202 approaches the built-in spring 82, it separates.

[0042] Reference Figures 1-10The circular sleeve 61 is always positioned above the inclined block 41. Simultaneously, the inclined plate 74 ensures that the stabilizing component 7 will never contact the inclined block 41 or the circular sleeve 61, thus avoiding interference. The width of the clearance slot 405 is greater than the width of the clamping plate 75, thereby providing a stable moving space for the clamping plate 75 and preventing interference. The clamping plate 75 is curved and its inner diameter is equal to the outer diameter of the built-in spring 82, thereby enhancing the fit. The number of clearance slots 405, guide rods 72, and inclined blocks 41 is equal, and their centerlines coincide. The pulley 73 is tangent to the corresponding inclined block 41. When the return spring 76 is not deformed, the length of the transverse groove 721 is equal to the distance between the clamping plate 75 and the built-in spring 82, ensuring that when the pulley 73 moves from one end of the transverse groove 721 to the other end, the clamping plate 75 fits against the built-in spring 82.

[0043] Specifically, the inclined plate 74 positions the clamping plate 75 in the lower half, allowing it to adapt to the downward stroke of the stamping rod 2 when the stabilizing component 7 slides as a whole, without affecting the normal pressing action. The inclined plate 74, through its tilt angle, confines the clamping plate 75 at the bottom of the mechanism to the lower half, ensuring that the stabilizing component 7 slides up and down with the assembly process, adapting to the downward stroke of the stamping rod 2. This does not hinder the stamping rod 2 from driving the retaining spring 201 and retaining sleeve 202 for pressing, while ensuring that the clamping plate 75 stably completes clamping and positioning at the preset position, achieving non-interference and coordinated connection of the actions of each component. Simultaneously… The clamping plate 75 adopts a curved structure design, and its inner diameter is consistent with the outer diameter of the built-in spring 82. This fitting size design enhances the contact fit between the clamping plate 75 and the built-in spring 82, making the clamping and positioning more secure and preventing the built-in spring 82 from shifting before pressing due to insufficient fit. In addition, the outer diameter of the stamping rod 2 is also the same as the inner diameter of the clamping plate 75, ensuring uniformity and no interference. The pulley 73 and the inclined block 41 always remain tangent, reducing the frictional resistance when the pulley 73 rolls along the inclined block 41, ensuring the movement trajectory of the pulley 73, and providing a guarantee for the subsequent opening and closing stroke of the clamping plate 75.

[0044] Reference Figures 1-9 The trigger plate 3 includes a disc 31 slidably connected to the outside of the stamping rod 2, a stop plate 32 fixedly connected to the outside of the stamping rod 2, and a compression spring 33 connected between the disc 31 and the stop plate 32. The spring force coefficient of the compression spring 33 is greater than the sum of the spring force coefficients of the return spring 78 and the trigger spring 63. The spring force coefficient of the compression spring 33 is five times or more than the sum of the spring force coefficients of the return spring 78 and the trigger spring 63. This ensures that when the disc 31 presses against the collar 71 and the arc block 62, the compression spring 33 will not fluctuate and can effectively compress the collar 71 and the arc block 62. This ensures that even in high-frequency cyclic operation, the spring force performance of the compression spring 33 can remain stable and will not decrease due to fatigue, thus extending the service life of the components. At the same time, it ensures the synchronization and reliability of the linkage action and reduces assembly failures caused by the failure of the trigger plate 3.

[0045] Reference Figures 1-9 The bottom of the disc 31 is provided with a protrusion 311, and the side of the disc 31 near the vertical plate 77 is provided with a protruding rod 312. The protruding rod 312 is located above the protrusion 311. The top of the vertical plate 77 is fixedly connected with a protruding strip 771. When the trigger spring 63 is not deformed, the height of the protrusion 311 is equal to the vertical height from the top of the vertical groove 403 to the bottom of the inclined groove 404, so that the distance by which the protrusion 311 presses the arc block 62 is the height of the protrusion 311 itself, ensuring that the roller 651 moves from the top of the vertical groove 403 to the bottom of the inclined groove 404 to form an opening and closing.

[0046] The vertical height from the top of the vertical groove 403 to the bottom of the inclined groove 404 represents the vertical distance between the two lines. The horizontal line drawn with the vertical groove 403 as the base point and the vertical line drawn with the bottom of the inclined groove 404 as the base point will form an intersection point. The distance from the base point of the inclined groove 404 to the intersection point is the vertical distance between the two lines.

[0047] Reference Figures 1-12 The thickness of the protruding rod 312 and the protruding strip 771 is equal to the thickness of the disc 31 to avoid the thickness of the protruding rod 312 and the protruding strip 771 affecting the compression of the arc block 62 by the protrusion 311. The protrusion 311 is located directly above the arc block 62 and the two are equal in shape and size to ensure accurate fit. When the stamping rod 2 is spliced ​​with the retaining spring 201 and the retaining sleeve 202, the protrusion 311 and the arc block 62 are in contact, and the splicing is completed at this time. Subsequently, the retaining spring 201 and the retaining sleeve 202 need to be assembled with the male head 81 and the internal spring 82. In addition, when the protrusion 311 and the arc block 62 are in contact, the clamping plate at this time 75 is not in contact with the built-in spring 82. Instead, when the ferrule 202 separates from the stop plate 65, the clamp 75 simultaneously contacts the built-in spring 82. This allows the single trigger disc 3 to drive the stabilizing component 7 and the encapsulation sleeve 6. Subsequently, when the ferrule 202 contacts the top of the built-in spring 82 and the stamping rod 2 contacts the top of the built-in spring 82, the built-in spring 82 is already in a stable state, ensuring the accuracy of subsequent splicing. At this time, the disc 31 will be blocked by contact with the top surface of the mounting bracket 4 and thus cannot move. However, the stamping rod 2 will continue to move, which will compress the clamping spring 33 and create a space for movement.

[0048] Reference Figures 1-12 The top of the snap-fit ​​device 1 is fixedly connected to the telescopic device 101, and the bottom of the telescopic device 101 is fixedly connected to the cover 102 to protect the trigger plate 3. The top of the stamping rod 2 is fixedly connected to the output end of the telescopic device 101. The telescopic device 101 is used to push the stamping rod 2 to move.

[0049] Example 2, refer to Figures 1-12The second embodiment of the present invention provides a quick connector male connector assembly machine, including a male connector snap ring assembly mechanism and an assembler 9. The top of the assembler 9 is provided with a distributor 91, a gripper 92, a screener 93, a splicer 94, a left feeder 95 and a right feeder 96. The snap-fit ​​connector 1 is fixedly connected to the top of the assembler 9, and the left feeder 95 and the right feeder 96 are respectively located on both sides of the snap-fit ​​connector 1.

[0050] Specifically, the feeder 91 is used to push the male head 81 original part and can also collect the assembled male head 81. The gripper 92 is used to move the workpiece. The screener 93 vibrates and screens the built-in spring 82 to the splicer 94 to reduce the defective built-in spring 82. Then, the splicer 94 assembles the built-in spring 82 with the male head 81 original part. Then, the gripper 92 installs it above the pusher 8 and pushes it below the snap fastener 1. Then, the left feeder 95 and the right feeder 96 place the snap ring 201 and snap sleeve 202 in the tooling sleeve 5 respectively, and then assemble them.

[0051] The working principle of this invention is as follows: When the telescopic device 101 is activated, the driving stamping rod 2 moves downward, and the disc 31 moves downward simultaneously. The protruding rod 312 first contacts the protruding strip 771 of the vertical plate 77, driving the entire stabilizing component 7 to slide downward along the guide groove 401. During this process, the pulley 73 moves along the inclined surface of the inclined block 41, compressing the return spring 76, pushing the inclined plate 74 to move horizontally inward along the horizontal groove 721 of the guide rod 72, and finally driving the clamping plate 75 to retract and be positioned close to the built-in spring 82. The stamping rod 2 continues to move downward, and its bottom end splices with the retaining spring 201 and retaining sleeve 202 in the tooling sleeve 5. At the same time, the protruding block 311 of the disc 31 is completely fitted with the arc block 62 of the encapsulation sleeve 6. At this point, the clamping plate 75 has completed its positioning but is not in direct contact with the built-in spring 82. The trigger disc 3 continues to move downward with the stamping rod 2. The protrusion 311 presses against the arc block 62, causing the sleeve 61 to slide downward along the outer wall of the tooling sleeve 5. The trigger spring 63 is compressed, and the sleeve 61 simultaneously drives the bracket 64 and the stop plate 65 to move downward. The roller 651 of the stop plate 65 first moves vertically downward along the vertical groove 403. When the ferrule 202 approaches the built-in spring 82, the roller 651 enters the inclined groove 404 and moves horizontally along the inclined groove 404 away from the tooling sleeve 5, causing the stop plate 65 to separate from the ferrule 202, releasing the ferrule 202, and simultaneously making the clamping plate 75 and the built-in spring 82 directly aligned. Upon contact, the shortened distance between the ferrule 202 and the top of the internal spring 82 allows for rapid contact. The internal spring 82 remains stable under the positioning action of the clamping plate 75, ensuring accurate alignment and guaranteeing that the internal spring 82 and the stamping rod 2 are coaxial, counteracting subsequent lateral bending moments. The stamping rod 2 continues to apply downward pressure, pressing the snap ring 201 and ferrule 202 to the corresponding positions on the male connector 81, forming a complete assembly of the male connector 81, internal spring 82, ferrule 202, and snap ring 201. During this process, the contact between the top of the disc 31 and the top surface of the mounting bracket 4 is obstructed. The stamping rod 2 continues to move downward, compressing the clamping spring 33, providing sufficient stroke for pressing. The telescopic device 101 retracts. The stamping rod 2 moves upward, the clamping spring 33 resets, and the trigger plate 3 moves upward synchronously. The protrusion 311 separates from the arc block 62, and the protrusion rod 312 separates from the protrusion strip 771. The trigger spring 63 resets, pushes the sleeve 61 upward, and the arc block 62 re-embeds into the through groove 402. The bracket 64 drives the baffle plate 65 to reset, and the roller 651 returns to the upper part of the vertical groove 403, restoring the lifting posture. The reset spring 78 retracts, pulling the vertical plate 77 and the collar 71 upward. The pulley 73 rolls back along the inclined surface of the inclined block 41. The return spring 76 resets, pushing the inclined plate 74 and the clamping plate 75 to open, returning to the upper part of the clearance groove 405, repeating the feeding process, and entering the next assembly cycle.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A male connector snap ring assembly mechanism, comprising a snap ring (1), characterized in that: The components include a stamping rod (2) fixedly connected to the snap-fit ​​connector (1), a trigger plate (3) located outside the stamping rod (2), a mounting bracket (4) fixedly connected to the outside of the snap-fit ​​connector (1), a tooling sleeve (5) fixedly connected inside the mounting bracket (4), a sealing sleeve (6) slidably connected to the outside of the tooling sleeve (5), a stabilizing component (7) slidably connected inside the mounting bracket (4), and a push-pull device (8) located below the snap-fit ​​connector (1). The top of the push-pull device (8) has a male connector (81) and a built-in spring. 82), the inside of the tooling sleeve (5) is used to place the snap ring (201) and the sleeve (202), and the encapsulation sleeve (6) is used to support the snap ring (201) inside the tooling sleeve (5). When the stamping rod (2) and the trigger plate (3) move down, the middle part of the male head (81) is supported by the stabilizing component (7). When the stamping rod (2) moves down after being spliced ​​with the snap ring (201) and the sleeve (202), the encapsulation sleeve (6) is gradually separated from the snap ring (201) by the trigger plate (3). The mounting bracket (4) has multiple inclined blocks (41) arranged at equal angles inside. The top and bottom of the inclined blocks (41) gradually slope towards the tooling sleeve (5). The top of the inclined blocks (41) is a vertical section (411). The mounting bracket (4) has a guide groove (401). The top of the mounting bracket (4) has a through groove (402). The bottom of the mounting bracket (4) has a vertical groove (403) and an inclined groove (404). The vertical groove (403) and the inclined groove (404) are interconnected. The inclined groove (404) is located below the vertical groove (403). The top and bottom of the inclined groove (404) gradually slope away from the tooling sleeve (5). The bottom of the mounting bracket (4) has multiple clearance slots (405) arranged at equal angles. The stabilizing component (7) includes a collar (71) disposed inside the mounting frame (4), multiple guide rods (72) disposed at equal angles and fixedly connected to the collar (71), a pulley (73) slidably connected inside the guide rod (72), an inclined plate (74) fixedly connected to the pulley (73), a clamping plate (75) fixedly connected to the bottom end of the inclined plate (74), a return spring (76) connected between the pulley (73) and the guide rod (72), a vertical plate (77) fixedly connected to one of the guide rods (72), and a reset spring (78) connected between the vertical plate (77) and the mounting frame (4). The guide rod (72) has a horizontal groove (721), and the vertical plate (77) is located inside the guide groove (401).

2. The male connector retaining ring assembly mechanism according to claim 1, characterized in that: The encapsulation sleeve (6) includes a circular sleeve (61) slidably connected to the outside of the tooling sleeve (5), an arc block (62) fixedly connected to the top of the circular sleeve (61), a trigger spring (63) connected between the circular sleeve (61) and the mounting bracket (4), multiple brackets (64) arranged at equal angles and fixedly connected to the bottom of the circular sleeve (61), and a baffle plate (65) slidably connected to the bottom of the baffle plate (64). When the trigger spring (63) is not deformed, the arc block (62) is located inside the through groove (402). The bottom end of the baffle plate (64) is provided with a straight groove strip (641). The baffle plate (65) is provided with a roller (651) at one end near the baffle plate (64). The roller (651) is located inside the straight groove strip (641) and the vertical groove (403).

3. The male connector retaining ring assembly mechanism according to claim 2, characterized in that: The circular sleeve (61) is always located above the inclined block (41). The width of the clearance slot (405) is greater than the width of the clamping plate (75). The clamping plate (75) is curved and its inner diameter is equal to the outer diameter of the built-in spring (82). The number of clearance slots (405), guide rods (72) and inclined blocks (41) is equal, and their center lines coincide. The pulley (73) is tangent to the corresponding inclined block (41). When the return spring (76) is not deformed, the length of the transverse groove (721) is equal to the distance between the clamping plate (75) and the built-in spring (82).

4. The male connector retaining ring assembly mechanism according to claim 3, characterized in that: The trigger plate (3) includes a disc (31) slidably connected to the outside of the stamping rod (2), a stop plate (32) fixedly connected to the outside of the stamping rod (2), and a compression spring (33) connected between the disc (31) and the stop plate (32). The spring force coefficient of the compression spring (33) is greater than the sum of the spring force coefficients of the return spring (78) and the trigger spring (63).

5. The male connector snap ring assembly mechanism according to claim 4, characterized in that: The bottom of the disc (31) is provided with a protrusion (311), and the side of the disc (31) near the vertical plate (77) is provided with a protruding rod (312). The protruding rod (312) is located above the protrusion (311). The top of the vertical plate (77) is fixedly connected with a protruding strip (771). When the trigger spring (63) is not deformed, the height of the protrusion (311) is equal to the vertical height from the top of the vertical groove (403) to the bottom of the inclined groove (404).

6. The male connector retaining ring assembly mechanism according to claim 5, characterized in that: The thickness of the protruding rod (312) and the protruding strip (771) is equal to the thickness of the disc (31). The protrusion (311) is located directly above the arc block (62) and the two are of equal shape and size. When the stamping rod (2) is spliced ​​with the snap ring (201) and the sleeve (202), the protrusion (311) fits into the arc block (62).

7. The male connector snap ring assembly mechanism according to claim 1, characterized in that: The top of the snap-fit ​​device (1) is fixedly connected to the telescopic device (101), the bottom of the telescopic device (101) is fixedly connected to the cover (102), and the top of the stamping rod (2) is fixedly connected to the output end of the telescopic device (101).

8. A quick connector male assembly machine, comprising the male connector snap ring assembly mechanism as described in claim 1, characterized in that: It also includes an assembler (9), which has a feeder (91), a gripper (92), a screener (93), a splicer (94), a left feeder (95) and a right feeder (96) on its top. The snap-fit ​​device (1) is fixedly connected to the top of the assembler (9), and the left feeder (95) and the right feeder (96) are located on both sides of the snap-fit ​​device (1).

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