A strong compatibility press spring device

Abstract

The utility model discloses a kind of strong compatibility's press spring device, it includes rack, detachably set on the locating seat of the rack, setting in the locating seat one side's homing mechanism, setting in the locating seat just above's press equipment, sleeve set in material outer periphery and cyclic use's sleeve, setting in the locating seat just below and receiving the sleeve's material receiving groove and setting on the rack's bolt supply box, spring supply box and finished product material receiving box.The utility model ensures spring press equipment quality, while, with good compatibility, stability and economy, suitable for the spring assembly demand in various industrial scenes.

Description

Technical Field

[0001] This utility model belongs to the field of snap ring press-fit technology, and in particular relates to a snap ring press-fit device with strong compatibility. Background Technology

[0002] like Figure 1 As shown, the bolt fastener 200 used in automobiles includes a bolt 201 and a retaining ring 202 sleeved on the outer periphery of the bolt. The bolt 201 includes a bolt head 2011 at the top and a threaded rod 2012 at the bottom. The threaded rod 2012 has a smooth section 20121 at the position that contacts the bolt head 2011, and the rest of the position is a threaded section 20122. The retaining ring 202 is sleeved on the smooth section 20121, and the inner diameter of the retaining ring 202 is smaller than the diameter of the threaded rod 2012. The retaining ring 202 is generally a metal ring with high elasticity, and there is a notch 2021 on one side of the ring. Therefore, the inner diameter of the retaining ring 202 can be increased. When pressing the retaining ring 202, the inner diameter of the retaining ring 202 must be expanded before it is sleeved on the smooth section 20121 of the threaded rod 2012.

[0003] In the prior art, there are devices for pressing snap rings. For example, the snap ring device for automotive column tube assemblies disclosed in Chinese Patent Publication No. CN204893860U involves placing the automotive column assembly on a fixing device during snap ring installation. The lower end face of the automotive column assembly is fixed to the lower positioning core. A guide sleeve is fitted onto the upper end of the automotive column assembly. The guide sleeve includes a protective sleeve and a guide sleeve arranged from bottom to top. The snap ring falls onto the guide sleeve and stops falling. A vertical cylinder pushes the snap ring sleeve downwards. The snap ring sleeve passes through the stop bar and continues to descend outside the guide sleeve, expanding and pressing the snap ring into the snap ring fixing groove of the automotive column assembly below the protective sleeve. Then, the vertical cylinder retracts and pulls the snap ring sleeve back. The snap ring installation on the automotive column assembly is complete. The automotive column assembly and the guide sleeve are then removed. In this solution, during the process of the snap ring sleeve pushing the snap ring downwards, the snap ring moves along the guide sleeve... As the outer periphery moves downward, the guide sleeve expands the inner diameter of the retaining circumferential. The retaining circumferential sleeve continues to push the retaining circumferential downward, allowing it to enter the retaining circumferential fixing groove, thus achieving press-fitting. However, in this design, the retaining circumferential sleeve pushes the retaining circumferential downward along the guide sleeve. The guide sleeve is relatively long, requiring the retaining circumferential sleeve to move a considerable distance downward around the outer periphery of the guide sleeve. The retaining circumferential is relatively small and thin. With the retaining circumferential sleeve pushing the retaining circumferential for a long time, the end face and radial direction of the retaining circumferential are subjected to forces. The end face of the retaining circumferential is subjected to a downward force F1, and the inner diameter of the retaining circumferential is subjected to a horizontal outward force F2. The directions of forces F1 and F2 are perpendicular, so the resultant force of forces F1 and F2 forms an angle with the retaining circumferential. This can lead to bending deformation of the retaining circumferential, reducing its service life. If the retaining circumferential is subjected to uneven forces locally, it can even cause local cracks, thus reducing the press-fitting yield of the retaining circumferential.

[0004] Therefore, it is necessary to provide a highly compatible snap ring device to solve the above-mentioned technical problems. Utility Model Content

[0005] The main purpose of this utility model is to provide a highly compatible snap ring pressing device that ensures the snap ring pressing quality while also having good compatibility, stability and economy, and is suitable for snap ring assembly needs in various industrial scenarios.

[0006] This utility model achieves the above-mentioned objective through the following technical solution: a highly compatible compression spring device, comprising a frame, a positioning seat detachably mounted on the frame, a straightening mechanism mounted on one side of the positioning seat, a pressing mechanism mounted directly above the positioning seat, a sleeve sleeved around the material and used cyclically, a receiving groove mounted directly below the positioning seat and receiving the sleeve, and a bolt feeding box, a compression spring feeding box, and a finished product receiving box mounted on the frame.

[0007] Furthermore, the positioning seat has a clearance through hole in the middle, and the receiving groove is located directly below the clearance through hole.

[0008] Furthermore, the diameter of the clearance hole is smaller than the outer diameter of the snap ring but larger than the outer diameter of the sleeve.

[0009] Furthermore, the positioning seat is detachably mounted on the frame via a first fastener.

[0010] Furthermore, the outer diameter of the bottom of the sleeve is smaller than the outer diameter of the top.

[0011] Furthermore, the alignment mechanism includes a clamping assembly and a first cylinder that drives the clamping assembly to move directly above or away from the positioning seat.

[0012] Furthermore, the clamping assembly includes a second cylinder and a pair of grippers driven by the second cylinder to perform opening or clamping actions, wherein the second cylinder is disposed at the movable end of the first cylinder via a first support plate.

[0013] Furthermore, the pressing mechanism includes a mounting frame, a pressing drive component disposed on the mounting frame, a lifting plate driven by the pressing drive component to move up and down, and a pressing assembly elastically disposed at the bottom of the lifting plate.

[0014] Furthermore, the pressing assembly includes a pressing plate, a plurality of guide rods disposed on the pressing plate, and springs sleeved on the outer periphery of the guide rods. The upper end of the guide rod is fixed on the lifting plate, and the lower end is movably disposed on the pressing plate. The upper end of the spring abuts against the lower surface of the lifting plate, and the lower end abuts against the upper surface of the pressing plate.

[0015] Compared with existing technologies, the advantages of this utility model's highly compatible snap ring pressing device are: this solution ensures the quality of snap ring pressing while also possessing good compatibility, stability, and economy, making it suitable for snap ring assembly needs in various industrial scenarios. Specifically: 1. Effectively avoids circlip deformation and damage, improving press-fit quality: In traditional solutions, circlips are subjected to combined axial and radial forces during press-fitting, which can easily lead to bending deformation or even cracks. This solution keeps the circlip stationary on the positioning seat and only pushes the bolt and sleeve downward, so that the circlip is only subjected to radial expansion force, avoiding deformation and damage caused by multi-directional forces, and significantly improving the press-fitting quality and yield of the circlip. 2. Strong compatibility and adaptability to various product specifications: The positioning seat adopts a detachable design, which is convenient for replacement according to different bolt diameters; the sleeve length matches the bolt thread section, which can be used for bolts of different lengths. In addition, this device is not only suitable for bolts, but also for the pressing of snap rings in other similar structures (such as pipes), which has good versatility and expandability. 3. Reasonable structure and stable and reliable pressing process: The pressing mechanism adopts an elastic pressing design, which eliminates bolt processing errors through spring buffering and prevents overload of pressing from damaging parts. The alignment mechanism can position and correct the bolts before pressing to ensure the alignment and stability of the pressing process. 4. Recyclable sleeves reduce costs: The design includes a receiving trough for recycling sleeves, enabling their reuse, reducing material costs, and aligning with the concept of green manufacturing. 5. Easy to operate and highly automated: It integrates bolt feeding, snap ring feeding and finished product receiving modules, and with the cylinder-driven alignment and pressing action, it realizes semi-automatic operation, reduces the burden of manual operation and improves production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the bolt fastener according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the structure of a compression spring device with strong compatibility according to an embodiment of this utility model; Figure 3 This is a schematic diagram of the positioning seat, the alignment mechanism, the pressing mechanism, and the sleeve in an embodiment of this utility model; Figure 4 This is a schematic diagram of the positioning seat, the alignment mechanism, the pressing mechanism, and the sleeve in an embodiment of this utility model; Figure 5 This is a schematic diagram of the structure of the present utility model, in which a sleeve is fitted around the outer periphery of the bolt and a retaining spring is fitted at the bottom of the sleeve; The numbers in the diagram represent: 100 - Highly compatible snap ring device; 200- Bolt fastener, 201- Bolt, 2011- Bolt head, 2012- Screw, 20121- Smooth section, 20122- Threaded section, 202- Snap ring, 2021- Notch; 1-Rack; 2-Positioning seat, 21-Allowing through hole, 22-First fastener; 3-Correcting mechanism, 31-Clamping assembly, 311-Second cylinder, 312-Gripper, 32-First cylinder, 33-First support plate; 4-Pressure fitting mechanism, 41-Mounting bracket, 42-Pressure fitting drive component, 43-Lifting plate, 44-Pressure fitting assembly, 441-Pressure fitting plate, 442-Guide rod, 443-Spring; 5-Sleeve, 51-Conical structure; 6-Receiving slot; 7-Bolt feeding box; 8-Spring feeding box; 9-Finished product receiving box. Detailed Implementation

[0017] Please refer to Figures 1-5 This embodiment is a highly compatible compression spring device 100, which includes a frame 1, a positioning seat 2 detachably mounted on the frame 1, a straightening mechanism 3 mounted on one side of the positioning seat 2, a pressing mechanism 4 mounted directly above the positioning seat 2, a sleeve 5 sleeved around the outer periphery of the bolt 201 and used repeatedly, a receiving groove 6 mounted directly below the positioning seat 2 and receiving the sleeve 5, and a bolt feeding box 7, a compression spring feeding box 8, and a finished product receiving box 9 mounted on the frame 1.

[0018] The positioning seat 2 has a clearance through hole 21 in the middle. The diameter of the clearance through hole 21 is smaller than the outer diameter of the snap ring 202 but larger than the outer diameter of the sleeve 5, so that the snap ring 202 can be restricted on the positioning seat 2 and will not fall out of the clearance through hole 21. When the pressing mechanism 4 pushes the bolt 201 and the sleeve 5 sleeved on the outer periphery of the bolt 201 downward from the clearance through hole 21, the snap ring 202 can be sleeved on the smooth section 20121 of the screw 2012. The receiving groove 6 is located directly below the clearance through hole 21 and communicates with the clearance through hole 21. The frame 1 is provided with a connecting hole that connects the clearance through hole and the receiving groove 6 so that the receiving groove 6 can receive the sleeve 5 that falls out of the clearance through hole 21. The sleeve 5 can be recycled, saving costs.

[0019] The positioning seat 2 is detachably mounted on the frame 1 via the first fastener 22, so that when changing bolts 201 of different diameters, different positioning seats 2 can be replaced accordingly, thereby improving the versatility of the equipment.

[0020] The inner diameter of the sleeve 5 is larger than the outer diameter of the bolt 201, so that the sleeve 5 can be fitted onto the outer circumference of the bolt 201. The bottom of the sleeve 5 is set as a tapered structure 51, that is, the outer diameter of the bottom of the sleeve 5 is smaller than the outer diameter of the top, so that the retaining spring 202 can be fitted onto the outer circumference of the bottom of the sleeve 5. The length of the sleeve 5 is consistent with the length of the threaded section 20122 of the screw 2012. When the retaining spring 202 is fitted onto the smooth section 20121 of the screw 2012, the sleeve 5 can fall off freely, and the threads of the threaded section 20122 can be prevented from being crushed.

[0021] In this embodiment, a retaining ring 202 is press-fitted onto the outer periphery of the bolt 201, and it can adapt to bolts 201 of various lengths. Therefore, it can adapt to bolts 201 of different lengths and diameters.

[0022] In other embodiments, snap rings can be press-fitted onto other materials with similar shapes and structures to bolts, such as snap rings on the outer periphery of pipes, and can also be adapted to materials of different lengths and diameters, with strong compatibility and good versatility.

[0023] The alignment mechanism 3 includes a clamping assembly 31 and a first cylinder 32 that drives the clamping assembly 31 to move directly above or away from the positioning seat 2.

[0024] The clamping assembly 31 includes a second cylinder 311 and a pair of grippers 312 driven by the second cylinder 311 to perform opening or clamping actions. The second cylinder 311 is located at the movable end of the first cylinder 32 via a first support plate 33.

[0025] The pressing mechanism 4 includes a mounting frame 41, a pressing drive 42 mounted on the mounting frame 41, a lifting plate 43 driven by the pressing drive 42 to move up and down, and a pressing assembly 44 elastically mounted at the bottom of the lifting plate 43.

[0026] The pressing assembly 44 includes a pressing plate 441, a plurality of guide rods 442 disposed on the pressing plate 441, and springs 443 sleeved on the outer periphery of the guide rods 442. The upper end of the guide rod 442 is fixed on the lifting plate 43, and the lower end is movably disposed on the pressing plate 441. The upper end of the spring 443 abuts against the lower surface of the lifting plate 43, and the lower end abuts against the upper surface of the pressing plate 441.

[0027] Specifically, the bottom of the guide rod 442 is provided with a nut and the top is provided with a thread. Both the pressure plate 441 and the lifting plate 43 are provided with mounting holes that are compatible with the guide rod 442. The nut of the guide rod 442 can limit the pressure plate 441. A nut is tightened at the thread on the top of the guide rod 442 to facilitate the fixed installation of the guide rod 442 and the lifting plate 43.

[0028] When the lifting plate 43 moves downward, it can drive the spring 443 to press the pressing plate 441 downward elastically, so that the pressing plate 441 is pressed elastically on the bolt 201. The elastic pressing can eliminate the machining error of the bolt 201 and also prevent the bolt 201 from being crushed.

[0029] When using the highly compatible snap ring device 100 provided in this solution, the operator first manually places the sleeve 5 around the outer periphery of the screw 2012 from the bottom of the bolt 201. Then, the operator manually snaps the snap ring 202 around the outer periphery of the tapered structure 51 at the bottom of the sleeve 5, ensuring that the snap ring 202 is tightly fitted around the tapered structure 51 at the bottom of the sleeve 5. Next, the bolt 201 with the sleeve 5 and snap ring 202 placed in the clearance hole 21. The outer diameter of the snap ring 202 is larger than the diameter of the clearance hole 21, allowing the snap ring 202 to be secured on the positioning seat 2 and preventing the sleeve 5 and bolt 201 from falling off. Then, the second cylinder 311 drives a pair of grippers 312 to clamp the outer periphery of the sleeve 5, aligning the bolt 201 and keeping it vertical. Finally, the pressing drive 42 drives the lifting plate 43 downward. The movement of the spring 443 causes it to elastically press the pressing plate 441 downwards. When the pressing plate 441 contacts the bolt head 2011 of the bolt 201, the second cylinder 311 drives a pair of grippers 312 to open, while the first cylinder 32 drives the clamping assembly 31 to retract. The pressing drive component 42 drives the lifting plate 43 to continue moving downwards, causing the pressing plate 441 to push the bolt 201 and sleeve 5 downwards. The retaining spring 202 is opened by the sleeve 5 and is fitted onto the smooth section 20121 of the bolt 201. When the retaining spring 202 is in place, the pressed bolt fastener 200 is removed and placed into the finished product receiving box 9. When the retaining spring 202 is in place, the sleeve 5 falls into the receiving groove 6 by avoiding the through hole 21. The sleeve 5 is taken out from the receiving groove 6 and fitted onto the outer circumference of the next bolt 201 to continue the next round of pressing operations. In this design, the retaining ring 202 is confined to the positioning seat 2 and does not move. Instead, the driving bolt 201 and sleeve 5 move downward. Therefore, the retaining ring 202 is only subjected to radial horizontal force. This force expands the inner diameter of the retaining ring, allowing the retaining ring 202 to fit smoothly onto the outer circumference of the bolt 201. This avoids bending and cracking caused by forces in other directions or uneven forces on the retaining ring 202, ensuring the pressing quality of the retaining ring 202 and thus improving its service life.

[0030] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A highly compatible snap ring device, characterized in that: It includes a frame, a positioning seat detachably mounted on the frame, a straightening mechanism mounted on one side of the positioning seat, a pressing mechanism mounted directly above the positioning seat, a sleeve sleeved around the material and used cyclically, a receiving groove mounted directly below the positioning seat and receiving the sleeve, and a bolt feeding box, a snap ring feeding box, and a finished product receiving box mounted on the frame.

2. The highly compatible compression spring device as described in claim 1, characterized in that: The positioning seat has a clearance through hole in the middle, and the receiving groove is located directly below the clearance through hole.

3. The highly compatible compression spring device as described in claim 2, characterized in that: The diameter of the clearance hole is smaller than the outer diameter of the snap ring but larger than the outer diameter of the sleeve.

4. The highly compatible compression spring device as described in claim 1, characterized in that: The positioning seat is detachably mounted on the frame via a first fastener.

5. A highly compatible compression spring device as described in claim 1, characterized in that: The outer diameter of the bottom of the sleeve is smaller than the outer diameter of the top.

6. The highly compatible compression spring device as described in claim 1, characterized in that: The alignment mechanism includes a clamping assembly and a first cylinder that drives the clamping assembly to move directly above or away from the positioning seat.

7. A highly compatible compression spring device as described in claim 6, characterized in that: The clamping assembly includes a second cylinder and a pair of grippers that are driven by the second cylinder to perform opening or clamping actions. The second cylinder is disposed at the movable end of the first cylinder via a first support plate.

8. A highly compatible compression spring device as described in claim 1, characterized in that: The pressing mechanism includes a mounting frame, a pressing drive component mounted on the mounting frame, a lifting plate driven by the pressing drive component to move up and down, and a pressing assembly elastically disposed at the bottom of the lifting plate.

9. A highly compatible compression spring device as described in claim 8, characterized in that: The pressing assembly includes a pressing plate, a plurality of guide rods disposed on the pressing plate, and springs sleeved on the outer periphery of the guide rods. The upper end of the guide rod is fixed on the lifting plate, and the lower end is movably disposed on the pressing plate. The upper end of the spring abuts against the lower surface of the lifting plate, and the lower end abuts against the upper surface of the pressing plate.

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