Shaft end retaining spring press-fit detection device

Abstract

This invention relates to the field of shaft end retaining spring pressing-in detection technology. To address the technical problems of manual inspection (time-consuming, labor-intensive, and risky) and camera inspection (high cost and stringent production environment requirements), this invention uses a hydraulic cylinder to drive a connecting plate downwards, which in turn moves a slider downwards. The slider's downward movement causes a fixture assembly to move downwards, pushing the shaft end retaining spring into a pressing groove at the upper end of a buffer mechanism. Under the reaction force, the fixture assembly moves upwards, sealing the space between the first and second optical fibers. If the shaft end retaining spring is correctly pressed in, the fixture assembly automatically moves downwards to block the optical fiber path. If the shaft end retaining spring is incorrectly pressed in, the fixture assembly remains stationary, continuing to seal the optical fiber path. This invention is simple to use, convenient, and provides a convenient method for ensuring product quality.

Description

Technical Field

[0001] This invention relates to the field of shaft end retaining ring detection technology, and in particular to a device for detecting the proper pressing and installation of shaft end retaining rings. Background Technology

[0002] A snap ring, also called a retaining ring or retaining ring, is a type of fastener used to prevent axial movement of parts on shafts or in holes in machines and equipment. Snap ring pliers come in two types: those for holes and those for shafts. Hole snap ring pliers are used to remove or install snap rings; their jaws are normally open when the pliers are in operation, while their jaws are normally closed when the pliers are in operation.

[0003] When pressing the shaft end retaining ring, it is necessary to confirm whether the shaft end retaining ring is pressed in place. Currently, the inspection method is manual point confirmation, which is time-consuming, labor-intensive and has certain quality risks. Currently, there are both manual inspection and camera photography inspection methods. Manual inspection: time-consuming, labor-intensive and has quality risks; camera photography inspection: higher cost and higher requirements for the production environment. Summary of the Invention

[0004] The purpose of this invention is to provide a device and method for detecting whether a shaft end retaining ring is in place, which can accurately position and automatically determine whether the retaining ring is in place, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a shaft end retaining spring press-fit detection device, comprising a support frame and a hydraulic cylinder, a fixture assembly, a buffer mechanism, and a shaft end retaining spring mounted on the support frame. Two reinforcing ribs are provided between the support frames, located on both sides of the fixture assembly. The hydraulic cylinder is mounted on the upper end of the support frame, and the driving end of the hydraulic cylinder movably penetrates the upper horizontal plate and is fixedly connected to the connecting plate mounted on the support frame. Two sliding bars are provided inside the support frame, and a slider is movably mounted on the outer side of the upper end of the sliding bars. The upper middle part of the slider is fixedly connected to the lower end of the connecting plate. The fixture assembly is fixedly mounted on the lower middle part of the slider and is on the same center line as the buffer mechanism. A shaft end retaining spring is sleeved on the upper end of the buffer mechanism. An optical fiber receiver is also provided on the slider. The optical fiber receiver outputs a first optical fiber and a second optical fiber. Both the first and second optical fibers are mounted on the slider. The output ends of the first and second optical fibers are connected to the fixture assembly, and their output ports are opposite each other. The fixture assembly presses the shaft end retaining spring.

[0006] Furthermore, the inspection fixture assembly includes a connecting suspension assembly and a connecting collar movably disposed at the lower end of the connecting suspension assembly. A pressure head is provided at the lower inner end of the connecting collar, and an optical fiber connecting block is provided on the outer side of the connecting collar. The connecting suspension assembly includes a connecting ring and a reinforcing plate fixedly disposed on one side of the connecting ring. A first optical fiber connecting block is provided on the outer side of the reinforcing plate, and a first optical fiber sleeve is provided on one side of the first optical fiber connecting block. The first optical fiber sleeve is connected to the first optical fiber. A second optical fiber connecting block is also provided on the outer side of the reinforcing plate, and a second optical fiber sleeve is also provided on the second optical fiber connecting block. The second optical fiber sleeve is connected to the second optical fiber. The optical fiber connecting block includes a sliding block and a sealing block integrally formed with the sliding block. The sealing block has a through-beam optical fiber communication hole. A screw is also provided on the sliding block. The screw thread passes through the sliding block and is fixedly connected to the connecting collar. A connecting post is also provided on one side of the reinforcing plate, and a limiting plate is provided at the end of the connecting post away from the reinforcing plate. The limiting plate is movably disposed on the inner side of the connecting collar.

[0007] Furthermore, the buffer mechanism includes a buffer element and a workpiece disposed on the upper end of the buffer element. A shaft end retaining ring is sleeved on the outer side of the workpiece, and a pressing groove is opened in the middle of the pressing groove. The inner diameter of the pressing head is larger than the diameter of the workpiece, and the inner diameter of the pressing head is smaller than the outer diameter of the shaft end retaining ring.

[0008] Another technical solution proposed by the present invention: a method for implementing a device for detecting the proper placement of a shaft end retaining ring, comprising the following steps:

[0009] S1: The hydraulic cylinder drives the connecting plate to move downward, which in turn drives the slider to move downward. The slider moves downward, which drives the fixture assembly to move downward and pushes the shaft end retaining spring into the pressing groove opened at the upper end of the buffer mechanism, thus starting the pressing action of the shaft end retaining spring. At this time, the shaft end retaining spring and the fixture assembly are not in contact.

[0010] S2: The shaft end retainer and the fixture assembly begin to contact. The shaft end retainer applies a reverse force to lift the fixture assembly. After being lifted, the fiber optic connector block turns the through-beam fiber from a closed loop to a through loop, thus confirming the presence of the shaft end retainer.

[0011] S3: After the shaft end retaining ring is pressed into place according to the procedure, it falls into the pressing groove. At this time, the shaft end retaining ring and the fixture assembly are not in contact. The fixture assembly falls down, the fiber optic connector falls down, and the through-beam fiber changes from a path to a closed path, thus confirming that the shaft end retaining ring has been pressed into place.

[0012] S4: If the fixture assembly is still subjected to a reverse force after the shaft end retainer is pressed in according to the procedure and the through-fiber is still in the path, then the shaft end retainer is not pressed in place.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The shaft end retaining spring pressing-fit detection device proposed in this invention uses a hydraulic cylinder to drive the connecting plate downward, which in turn drives the slider downward. The downward movement of the slider drives the fixture assembly downward and pushes the shaft end retaining spring into the pressing groove opened at the upper end of the buffer mechanism. Under the reaction force, the fixture assembly moves upward and blocks the space between the first and second optical fibers. If the shaft end retaining spring is pressed-fitted correctly, the fixture assembly automatically moves downward to block the optical fiber path. If the shaft end retaining spring is pressed-fitted incorrectly, the fixture assembly does not move and the optical fiber path remains blocked. The detection is simple, convenient to use, and achieves product quality, providing a convenient method. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the shaft end retaining spring press-fit detection device of the present invention;

[0016] Figure 2 This is a three-dimensional structural diagram of the fixture assembly of the shaft end retaining spring press-fit detection device of the present invention;

[0017] Figure 3 This is a three-dimensional structural diagram of the connection suspension assembly of the shaft end snap ring press-fit detection device of the present invention;

[0018] Figure 4 This is a three-dimensional structural diagram of the buffer mechanism of the shaft end snap ring press-fit detection device of the present invention;

[0019] Figure 5 This is a three-dimensional structural diagram of the fiber optic connector block of the shaft end retaining spring press-fit detection device of the present invention;

[0020] Figure 6 This is a schematic diagram of the planar structure of the pressure head of the shaft end snap ring pressing detection device of the present invention in the state of the pre-pressing position;

[0021] Figure 7 This is a schematic diagram of the planar structure of the shaft end retaining spring pressing detection device of the present invention, showing the pressing head running to the pressing position and starting the pressing process.

[0022] Figure 8 This is a schematic diagram of the planar structure of the shaft end retaining spring press-fit detection device of the present invention, showing the qualified state of the device.

[0023] Figure 9 This is a schematic diagram of the planar structure of the detection device for detecting the failure state of the shaft end retaining spring press-fitting in this invention.

[0024] In the diagram: 1. Support frame; 11. Slider; 12. Sliding bar; 13. Transmission block; 2. Reinforcing rib; 3. Hydraulic cylinder; 31. Connecting plate; 4. Fiber optic receiver; 41. First fiber optic cable; 42. Second fiber optic cable; 5. Inspection fixture assembly; 51. Connecting suspension assembly; 511. Connecting ring; 512. Reinforcing plate; 513. First fiber optic connector block; 514. First fiber optic sleeve; 515. Second fiber optic connector block; 516. Second fiber optic cable. 517. Fiber optic sleeve; 518. Connecting post; 519. Limiting disc; 52. Guide block; 53. Connecting collar; 54. Press head; 55. Fiber optic connector block; 541. Sliding block; 542. Sealing block; 5421. Through-beam fiber optic communication hole; 5422. Trapezoidal groove; 5423. Limiting groove; 543. Screw; 6. Buffer mechanism; 61. Buffer component; 62. Workpiece; 621. Press-fit groove; 7. Adjusting component; 8. Shaft end retaining ring. Detailed Implementation

[0025] 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.

[0026] like Figure 1-5As shown, the shaft end retaining spring press-fit detection device includes a support frame 1 and a hydraulic cylinder 3, a fixture assembly 5, a buffer mechanism 6, and a shaft end retaining spring 8 mounted on the support frame 1. The support frame 1 consists of two equal horizontal plates and a vertical plate. To improve the stability of the support frame 1, two reinforcing ribs 2 are provided between the upper and lower horizontal plates. The two reinforcing ribs 2 are located on both sides of the fixture assembly 5. The hydraulic cylinder 3 is mounted on the upper end of the upper horizontal plate, and its drive end moves through the upper horizontal plate and connects with a connecting plate 31 located on the lower side of the horizontal plate. A fixed connection is provided. Two sliding bars 12 parallel to the vertical plate are provided on one side of the vertical plate. A slider 11 is movably installed on the outer side of the upper end of the sliding bars 12. The middle of the upper end of the slider 11 is fixedly connected to the lower end of the connecting plate 31. The connecting plate 31 is driven to move downward by the hydraulic cylinder 3, which in turn drives the slider 11 to move downward. The inspection fixture assembly 5 is fixedly installed at the middle of the lower end of the slider 11 and is on the same center line as the buffer mechanism 6. The upper end of the buffer mechanism 6 is sleeved with a shaft end retaining spring 8. The downward movement of the slider 11 drives the inspection fixture assembly 5 downward. The slider 11 is moved and pushed into the pressing groove 621 at the upper end of the buffer mechanism 6 to determine whether it is pressed in place. A transmission block 13 is provided on the outer side of the lower end of the slider 12. The middle part of the outer side of the transmission block 13 is fixedly connected to the middle part of the buffer mechanism 6. One side of the transmission block 13 is also fixedly connected to the adjusting member 7. The lower end of the adjusting member 7 is connected to the lower horizontal plate, and the upper end of the adjusting member 7 is connected to the upper horizontal plate. In order to detect more quickly and accurately, an optical fiber receiver 4 is also provided on the slider 11. The optical fiber receiver 4 outputs outward. There is a first optical fiber 41 and a second optical fiber 42. Both the first optical fiber 41 and the second optical fiber 42 are set on the slider 11. The output ends of the first optical fiber 41 and the second optical fiber 42 are connected to the fixture assembly 5 and the output ports are opposite each other. The fixture assembly 5 presses the shaft end retaining spring 8. Under the reaction force, the fixture assembly 5 moves upward to block between the first optical fiber 41 and the second optical fiber 42. If the shaft end retaining spring 8 is pressed correctly, the fixture assembly 5 automatically moves downward to block the optical fiber path. If the shaft end retaining spring 8 is pressed incorrectly, the fixture assembly 5 does not move and the optical fiber continues to be blocked.

[0027] The inspection fixture assembly 5 includes a connecting suspension assembly 51 and a connecting collar 52 movably disposed at the lower end of the connecting suspension assembly 51. A pressure head 53 is provided at the lower inner end of the connecting collar 52, and an optical fiber connector 54 is provided on the outer side of the connecting collar 52.

[0028] The buffer mechanism 6 includes a buffer member 61 and a workpiece 62 disposed on the upper end of the buffer member 61. A shaft end retaining ring 8 is sleeved on the outer side of the workpiece 62, and a pressing groove 621 is opened in the middle of the pressing groove 621. The inner diameter of the pressing head 53 is larger than the diameter of the workpiece 62, and the inner diameter of the pressing head 53 is smaller than the outer diameter of the shaft end retaining ring 8. By pressing down with the pressing head 53, the shaft end retaining ring 8 moves downward and the connecting collar 52 moves upward slightly, so that the optical fiber connector 54 connects to the through-beam optical fiber.

[0029] The connecting suspension assembly 51 includes a connecting ring 511 and a reinforcing disc 512 fixedly disposed on one side of the connecting ring 511. A first optical fiber connecting block 513 is disposed on the outer side of the reinforcing disc 512. A first optical fiber connecting sleeve 514 is disposed on one side of the first optical fiber connecting block 513. The first optical fiber connecting sleeve 514 is connected to the first optical fiber 41. A second optical fiber connecting block 515 is also disposed on the outer side of the reinforcing disc 512. A second optical fiber connecting sleeve 516 is also disposed on the second optical fiber connecting block 515. The second optical fiber connecting sleeve 516 is connected to the second optical fiber 42.

[0030] The fiber optic connector 54 includes a sliding block 541 and a sealing block 542 integrally formed with the sliding block 541. The sealing block 542 has a through-fiber communication hole 5421. The sliding block 541 is also provided with a screw 543. The screw 543 is threaded through the sliding block 541 and fixedly connected to the connecting collar 52.

[0031] A connecting post 517 is also provided on one side of the reinforcing plate 512. A limiting plate 518 is provided at the end of the connecting post 517 away from the reinforcing plate 512. The limiting plate 518 is movably located inside the connecting collar 52.

[0032] To prevent the fiber optic connector 54 from shifting or misaligning due to loosening of the screw 543 after prolonged use, a guide groove is provided on the sealing block 542 located on one side of the through-fiber communication hole 5421. The guide groove consists of a trapezoidal groove 5422 and a limiting groove 5423. A limiting groove 5423 is provided on the sealing block 542, which is on the same straight line as the trapezoidal groove 5422. The limiting groove 5423 is connected to the trapezoidal groove 5422. A guide block 519 is provided at the lower end of the first fiber optic connector 513. The guide block 519 corresponds to the limiting groove 5423. Even if the screw 543 loosens after prolonged use, the guide block 519 will not shift when the fiber optic connector 54 moves upward due to the limiting cooperation of the trapezoidal groove 5422 and the limiting groove 5423, thus ensuring the stability of the through-fiber connection.

[0033] like Figures 6-9 As shown, another technical solution proposed by the present invention: a method for implementing a device for detecting the proper placement of a shaft end retaining ring, comprising the following steps:

[0034] Step 1: Drive the connecting plate 31 downward by the hydraulic cylinder 3, which in turn drives the slider 11 downward. The downward movement of the slider 11 drives the inspection tool assembly 5 downward and pushes the shaft end retaining spring 8 into the pressing groove 621 opened at the upper end of the buffer mechanism 6, thus starting the pressing action of the shaft end retaining spring 8. At this time, the shaft end retaining spring 8 and the inspection tool assembly 5 are not in contact.

[0035] Step 2: The shaft end retaining ring 8 and the fixture assembly 5 begin to contact. The shaft end retaining ring 8 applies a reverse force to lift the fixture assembly 5. After being lifted, the fiber optic connector 54 turns the through-beam fiber from a closed circuit to a through circuit, thus confirming the presence of the shaft end retaining ring 8.

[0036] Step 3: After the shaft end retaining ring 8 is pressed into place according to the procedure, it falls into the pressing groove 621. At this time, the shaft end retaining ring 8 and the fixture assembly 5 are not in contact. The fixture assembly 5 falls down, the optical fiber connector block 54 falls down, and the through-beam optical fiber changes from a path to a closed path, thus confirming that the shaft end retaining ring has been pressed into place.

[0037] Step 4: If the end retainer 8 is pressed into place according to the procedure, and the fixture assembly 5 is still subjected to a reverse force, and the optical fiber is still in the path, then the end retainer 8 is not properly pressed into place.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for detecting the press-fitting of a shaft end clamp spring into position, characterized in that The system includes a support frame (1) and a hydraulic cylinder (3), a fixture assembly (5), a buffer mechanism (6), and a shaft end retaining ring (8) mounted on the support frame (1). Two reinforcing ribs (2) are provided between the support frames (1) and are located on both sides of the fixture assembly (5). The hydraulic cylinder (3) is mounted on the upper end of the support frame (1), and the driving end of the hydraulic cylinder (3) moves through the upper horizontal plate and is fixedly connected to the connecting plate (31) mounted on the support frame (1). Two sliding bars (12) are provided on the inner side of the support frame (1), and a slider (11) is movably mounted on the outer side of the upper end of the sliding bar (12). The middle of the upper end of the slider (11) is located at the middle of the upper end of the slider (11). The lower end of the connecting plate (31) is fixedly connected, and the inspection fixture assembly (5) is fixedly set in the middle of the lower end of the slider (11) and is on the same center line as the buffer mechanism (6). The upper end of the buffer mechanism (6) is sleeved with a shaft end retainer (8). The slider (11) is also equipped with an optical fiber receiver (4). The optical fiber receiver (4) outputs a first optical fiber (41) and a second optical fiber (42). The first optical fiber (41) and the second optical fiber (42) are both set on the slider (11). The output ends of the first optical fiber (41) and the second optical fiber (42) are both connected to the inspection fixture assembly (5) and the output ports are opposite each other. The inspection fixture assembly (5) is stamped with a shaft end retainer (8). The inspection fixture assembly (5) includes a connecting suspension assembly (51) and a connecting collar (52) movably disposed at the lower end of the connecting suspension assembly (51). A pressure head (53) is provided at the lower inner end of the connecting collar (52), and an optical fiber connector (54) is also provided on the outer side of the connecting collar (52). The fiber optic connector (54) includes a sliding block (541) and a sealing block (542) integrally formed with the sliding block (541). The sealing block (542) has a through-fiber communication hole (5421). The sliding block (541) is also provided with a screw (543). The screw (543) is threaded through the sliding block (541) and fixedly connected to the connecting collar (52). A guide groove is provided on the blocking block (542) located on one side of the through-beam optical fiber connecting hole (5421), and a guide block (519) is provided at the lower end of the first optical fiber connecting block (513), with the guide block (519) corresponding to the guide groove.

2. The shaft end circlip press-in-place detection device of claim 1, wherein A transmission block (13) is provided on the outer side of the lower end of the slide bar (12). The middle part of the outer side of the transmission block (13) is fixedly connected to the middle part of the buffer mechanism (6). One side of the transmission block (13) is also fixedly connected to the adjusting member (7). The lower end of the adjusting member (7) is connected to the lower horizontal plate, and the upper end of the adjusting member (7) is connected to the upper horizontal plate.

3. The shaft end circlip press-in-place detection device of claim 1, wherein The connecting suspension assembly (51) includes a connecting ring (511) and a reinforcing plate (512) fixedly disposed on one side of the connecting ring (511). A first optical fiber connecting block (513) is disposed on the outside of the reinforcing plate (512). A first optical fiber sleeve (514) is disposed on one side of the first optical fiber connecting block (513). The first optical fiber sleeve (514) is connected to the first optical fiber (41). A second optical fiber connecting block (515) is also disposed on the outside of the reinforcing plate (512). A second optical fiber sleeve (516) is also disposed on the second optical fiber connecting block (515). The second optical fiber sleeve (516) is connected to the second optical fiber (42).

4. The shaft end circlip press-in-place detection device of claim 3, wherein A connecting post (517) is also provided on one side of the reinforcing plate (512). A limiting plate (518) is provided at the end of the connecting post (517) away from the reinforcing plate (512). The limiting plate (518) is movably located inside the connecting collar (52).

5. The shaft end circlip press-in-place detection device of claim 4, wherein, The buffer mechanism (6) includes a buffer element (61) and a workpiece (62) disposed on the upper end of the buffer element (61). A shaft end retainer (8) is sleeved on the outer side of the workpiece (62), and a pressing groove (621) is opened in the middle of the pressing groove (621). The inner diameter of the pressing head (53) is larger than the diameter of the workpiece (62), and the inner diameter of the pressing head (53) is smaller than the outer diameter of the shaft end retainer (8).

6. The shaft end circlip press-in-place detection device of claim 1, wherein, The guide groove consists of a trapezoidal groove (5422) and a limiting groove (5423). The limiting groove (5423) is opened on the sealing block (542) which is on the same straight line as the trapezoidal groove (5422). The limiting groove (5423) is connected to the trapezoidal groove (5422).

7. A method of implementing the device for detecting the press-fitting of a shaft end clamp spring into place according to claims 1-5, characterized in that, Includes the following steps: S1: The hydraulic cylinder (3) drives the connecting plate (31) to move downward, which in turn drives the slider (11) to move downward. The slider (11) moves downward, which drives the inspection tool assembly (5) to move downward and pushes the shaft end retaining ring (8) into the pressing groove (621) opened at the upper end of the buffer mechanism (6) to start the pressing action of the shaft end retaining ring (8). At this time, the shaft end retaining ring (8) and the inspection tool assembly (5) are not in contact. S2: The shaft end retainer (8) and the fixture assembly (5) begin to contact. The shaft end retainer (8) applies a reverse force to lift the fixture assembly (5). After being lifted, the fiber optic connector (54) turns the through-beam fiber from a closed loop to a through loop, thus confirming the existence of the shaft end retainer (8). S3: After the shaft end retaining ring (8) is pressed in according to the procedure, it falls into the pressing groove (621). At this time, the shaft end retaining ring (8) and the inspection tool assembly (5) are not in contact. The inspection tool assembly (5) falls down, the fiber optic connector (54) falls down, and the through-beam fiber changes from a path to a closed path, thus confirming that the shaft end retaining ring has been pressed in place. S4: If the end clip (8) is pressed into place according to the procedure, and the fixture assembly (5) is still subjected to a reverse force and the optical fiber is still in the path, then the end clip (8) is not pressed into place.

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