An automatic assembly mechanism for snap rings

Abstract

This invention discloses an automatic snap ring assembly mechanism, including a feeding and pushing unit. The feeding and pushing unit includes a guiding structure, a snap ring pushing cylinder, and a snap ring pushing plate. The snap ring pushing plate has: an upper positioning groove, into which the bottom of the guiding structure extends movably; a U-shaped snap ring support groove, the bottom surface of which is located at the end of the snap ring pushing plate, with its U-shaped opening facing the assembly position. When the snap ring pushing plate is in the initial position, the snap ring support groove is directly below the bottom of the guiding structure, accommodating and fitting a single snap ring; and a mounting notch facing the assembly position, located at the end of the snap ring pushing plate and communicating with the snap ring support groove. When the snap ring pushing plate drives the snap ring to engage with the shaft-like workpiece, the mounting notch radially and separably fits the shaft-like workpiece. This invention can automatically install snap rings onto shaft-like workpieces and accelerate snap ring installation efficiency.

Description

Technical Field

[0001] This invention relates to the field of automated tooling technology, specifically to an automatic assembly mechanism for snap rings. Background Technology

[0002] A snap ring is a type of fastener installed in the grooves or holes of shafts or holes in machines and equipment, serving to prevent axial movement of parts on the shaft or hole. Installing a snap ring is an important mechanical process. Its shape is C-shaped, and radial force is applied during the installation process to assemble the snap ring onto the shaft-like workpiece.

[0003] Currently, numerous devices for automatically installing snap rings onto shaft workpieces have been disclosed. For example, Chinese patent CN210731580U discloses a manual shaft snap ring assembly fixture, comprising: a workpiece positioning assembly for positioning a horizontally placed shaft workpiece; a snap ring storage and feeding unit, including a storage block for storing multiple snap rings and a feeding assembly for pushing the snap rings to the pressing position; a snap ring positioning assembly, including a snap ring positioning seat and a ball-head plunger disposed in the snap ring positioning seat for positioning the snap ring in the pressing position, wherein the snap ring positioning seat has a snap ring pressing groove; and a pressing assembly for pressing the snap ring from top to bottom. The snap ring storage and feeding unit, snap ring positioning assembly, and pressing assembly are movable as a whole. When the snap ring storage and feeding unit, snap ring positioning assembly, and pressing assembly are in the pressing working position, the snap ring pressing groove is directly above the shaft groove on the shaft workpiece.

[0004] It is evident that the press-fitting of retaining rings is done manually. However, due to the large batch size of retaining rings being installed, manual installation is very labor-intensive and limits production capacity. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic snap ring assembly mechanism that can automatically install snap rings onto shaft-type workpieces and accelerate the installation efficiency of snap rings.

[0006] The objective of this invention is achieved as follows: an automatic snap ring assembly mechanism, comprising a feeding and pushing unit;

[0007] The feeding and pushing unit includes:

[0008] The material guide structure is used to position the snap rings and arrange them one by one from top to bottom in a vertical row. The snap rings are raised and lowered in conjunction with the material guide structure and the opening of the snap rings faces the assembly position.

[0009] A circlip cylinder and a circlip pusher plate, wherein the circlip pusher plate constitutes the movable part of the circlip cylinder and moves linearly in the horizontal direction;

[0010] The retaining ring pusher plate has the following features:

[0011] The bottom of the material guiding structure extends relatively movably into the upper positioning groove, and the upper positioning groove extends to the end of the snap ring push plate along the direction of movement of the snap ring push plate;

[0012] The U-shaped retainer groove is located at the bottom of the upper positioning groove at the end of the retainer push plate, with its U-shaped opening facing the assembly position. When the retainer push plate is in the initial position, the retainer groove is located directly below the bottom of the material guiding structure, which accommodates and fits a single retainer.

[0013] The mounting notch facing the assembly position is opened at the end of the snap ring pusher plate and communicates with the snap ring support groove. When the snap ring pusher plate drives the snap ring to snap onto the shaft workpiece, the mounting notch can be radially separably fitted onto the shaft workpiece.

[0014] Furthermore, it also includes a switching cylinder support, a switching rotary cylinder, and an upper switching platform. There are two feeding and pushing units. The switching rotary cylinder is installed on the switching cylinder support, and its rotation output end supports and drives the middle of the upper switching platform. There are two feeding and pushing units, which are installed at both ends of the upper switching platform. When in use, one of the feeding and pushing units faces the assembly station.

[0015] The beneficial effects of this invention are as follows:

[0016] It can automatically install snap rings onto shaft-type workpieces, guide the snap rings to the snap ring push plate using a material guide structure, position the snap rings to be installed using snap ring brackets, and drive the snap ring push cylinder to snap the snap rings into the shaft-type workpieces.

[0017] Since there are two feeding and pushing units, the upper switching table can be rotated by using a switching rotary cylinder to switch the positions of the two feeding and pushing units so that one of the feeding and pushing units is facing the assembly position, thereby meeting the needs of mass production. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a three-dimensional structural diagram from another perspective of the present invention.

[0020] Figure 3 This is a schematic diagram showing the relationship between the snap ring pusher plate and the snap ring pusher cylinder.

[0021] Figure 4 This is a schematic diagram showing the fit between the retaining ring positioning post and the retaining ring.

[0022] Figure 5 This is a schematic diagram showing the positions of the fiber optic cable for snap ring shortage alarm and the fiber optic cable for incoming material detection.

[0023] Figure 6 This is a schematic diagram showing the relative positions of the top support and the snap ring push plate from a side view.

[0024] Figure 7 This is a schematic diagram showing the relative positions of the snap ring push plate, the upper support block, and the laser detection sensor.

[0025] Figure 8 This is a schematic diagram of a laser detection sensor monitoring a snap ring.

[0026] Figure 9 This is a schematic diagram showing the relative positions of the snap ring support groove, the upper positioning groove, and the mounting notch on the snap ring push plate.

[0027] Figure 10 This is a schematic diagram of the constrained components of a shaft-type workpiece from a three-dimensional perspective.

[0028] Figure 11 This is a schematic diagram of the snap ring assembly based on a side view. Detailed Implementation

[0029] The following will refer to the appendices in the embodiments of the present invention. Figure 1-11 The technical solutions in the embodiments of the present invention are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0030] like Figure 1-11 As shown, an automatic snap ring assembly mechanism includes a feeding and pushing unit 1, which comprises:

[0031] Material guiding structure, such as Figure 1 As shown, it is used to position the snap rings 19 and make the snap rings 19 attach one to the other from top to bottom to form a vertical row. The snap rings 19 are in a lifting and lowering motion with the material guide structure and the opening of the snap rings 19 faces the assembly position.

[0032] The circlip cylinder 111 and the circlip pusher plate 112, such as Figure 1 As shown, the snap ring pusher plate 112 constitutes the movable part of the snap ring pusher cylinder 111 and moves linearly in the horizontal direction.

[0033] Among them, such as Figure 5 , 9 As shown, the above-mentioned retaining ring pusher plate 112 has:

[0034] The bottom of the material guiding structure extends relatively movably into the upper positioning groove 112a, and the upper positioning groove 112a extends to the end of the snap ring push plate 112 along the moving direction of the snap ring push plate 112.

[0035] The U-shaped retaining ring slot 112b is located at the end of the retaining ring push plate 112 on the bottom surface of the upper positioning slot 112a. Its U-shaped opening faces the assembly position. When the retaining ring push plate 112 is in the initial position, the retaining ring slot 112b is located directly below the bottom of the material guiding structure, which accommodates and fits a single retaining ring 19.

[0036] The mounting notch 112c facing the assembly position is opened at the end of the snap ring push plate 112 and communicates with the snap ring bracket 112b. When the snap ring push plate 112 drives the snap ring 19 to snap onto the shaft workpiece 14, the mounting notch 112c can be radially separably fitted onto the shaft workpiece 14.

[0037] To increase efficiency, as one of the preferred embodiments, such as Figure 1 As shown, the mechanism also includes a switching cylinder support 4, a switching rotary cylinder 3, and an upper switching platform 2. There are two feeding and pushing units 1. The switching rotary cylinder 3 is installed on the switching cylinder support 4, and its rotation output end supports and drives the middle of the upper switching platform 2. There are two feeding and pushing units 1, which are installed at both ends of the upper switching platform 2. When in use, one of the feeding and pushing units 1 faces the assembly station.

[0038] As one of the solutions for optimizing the material guiding structure, the material guiding structure of the above-mentioned feeding and pushing unit 1 includes:

[0039] The feeding frame 102 is fixedly installed on the upper switching platform 2. It has a through-hole 102a for guiding the sliding of a retaining spring, the cross-section of which matches the retaining spring 19 (e.g., Figure 7 (as shown);

[0040] The vertically extending snap ring positioning post 101, as shown Figure 3 , 4 As shown, the snap ring positioning post 101 is fixedly connected to the feeding frame body 102 and has a strip-shaped guide portion that slides within the snap ring sliding guide hole 102a and is in slidable engagement with the C-shaped opening of the snap ring 19. The gap between the bottom of the snap ring positioning post 101 and the bottom surface of the upper positioning groove 112a is less than the thickness of a single snap ring 19. This gap can be 0.5mm or other sizes, which are not limited here.

[0041] To strengthen the monitoring of the work process, one possible improvement to monitoring methods is... Figure 5As shown, a snap ring shortage alarm fiber optic cable 103 is installed near the snap ring push plate 112 on the above-mentioned feeding frame 102. The sensing end of the snap ring shortage alarm fiber optic cable 103 is directly opposite the snap ring positioning post 101. The function of the snap ring shortage alarm fiber optic cable 103 is: if the snap ring shortage alarm fiber optic cable 103 cannot detect the snap ring 19, the control machine will immediately generate an alarm prompt.

[0042] like Figure 8 As shown, the end of the aforementioned snap ring push plate 112 is equipped with an incoming material detection fiber optic cable 113. The sensing end of the incoming material detection fiber optic cable 113 is directly opposite the snap ring holder 112b to detect whether the snap ring 19 has been received, that is, it can detect whether the snap ring 19 has entered the snap ring holder 112b.

[0043] like Figure 7 As shown, the agency also includes:

[0044] The sensor bracket 6 is fixedly installed on the inner fixed seat 17;

[0045] The laser detection sensor 5 is mounted on the sensor bracket 6. The detection end of the laser detection sensor 5 is directly opposite the installation position of the snap ring 19 and the shaft workpiece 14, thereby detecting whether the snap ring 19 has been properly assembled on the shaft workpiece 14. The sensor bracket 6 can be adjusted up and down and left and right (the adjustable setting scheme is not limited here), so that the detection end of the laser detection sensor 5 can always be directly opposite the installation position of the snap ring 19 and the shaft workpiece 14.

[0046] To optimize the assembly process and enable the automatic assembly of a large number of shaft-type workpieces 14 one after another, such as... Figure 1 As shown, the agency also includes:

[0047] The circular inner base 17 is fixedly installed;

[0048] An annular outer rotating seat 18 surrounds the outer circle of the inner fixed seat 17. The outer rotating seat 18 is equipped with a rotary driver and rotates horizontally around the inner fixed seat 17 under the drive of the rotary driver.

[0049] Several locating seats 13 for parts to be assembled are distributed circumferentially along the outer rotating seat 18, such as... Figure 2 As shown, the positioning seat 13 for the part to be assembled is fixedly connected to the outer rotating seat 18, and the shaft workpiece 14 is detachably inserted into the positioning seat 13 for the part to be assembled.

[0050] During the assembly process, the outer rotating seat 18 rotates horizontally around the inner fixed seat 17 under the drive of the rotary driver, and sequentially switches the shaft workpieces 14 that need to be installed along the circumference to meet the needs of mass production.

[0051] In addition, to prevent axial and radial displacement of the shaft workpiece 14 during the insertion of the snap ring 19, each locating seat 13 for the assembly is equipped with a limiting component for defining the position of the shaft workpiece 14, such as... Figure 2 , 10 As shown in Figure 11, the aforementioned limiting components include:

[0052] The slide block 10 has a bottom slide block 11 fixed at its bottom. The bottom slide block 11 is equipped with a guide slide rail 12 that extends horizontally along the radial direction of the outer rotating seat 18. The guide slide rail 12 is fixedly connected to the outer rotating seat 18, and the bottom slide block 11 and the guide slide rail 12 are in sliding cooperation.

[0053] The front limiting plate 9 is detachably fixed to the side of the slide 10 facing the assembly position. The end of the front limiting plate 9 facing the assembly position is provided with a U-shaped opening. When the snap ring 19 is engaged with the shaft workpiece 14, the front limiting plate 9 abuts against the shaft workpiece 14 in a direction relative to the snap ring push plate 112, and the U-shaped opening of the front limiting plate 9 engages with the part of the shaft workpiece 14 below the snap ring 19, so as to limit the axial and radial positions of the shaft workpiece 14.

[0054] Roller 15 is rotatably connected to the bottom of slide 10;

[0055] A pair of springs 20 are provided with spring limit seats 21 that are fixedly connected to the outer rotating seat 18. The pair of springs 20 are located on the left and right sides of the bottom slider 11, and the springs 20 elastically connect the slider 10 and the spring limit seats 21.

[0056] The inner fixed seat 17 is fixedly connected to the upper side of the roller guide rail 16. The roller guide rail 16 is an arc-shaped strip, and its center coincides with the center of the inner fixed seat 17. The spring 20 pushes the sliding seat 10 and its front limit plate 9 outward along the radial direction of the outer rotating seat 18, so that the roller 15 abuts against the inner arc surface of the roller guide rail 16.

[0057] The inner arc surface of the roller guide rail 16 has a portion that is radially outwardly recessed and faces the mounting position of the retaining spring 19 (see reference). Figure 10 When the roller 15 moves to the recessed portion of the inner arc surface of the roller guide rail 16, the front limiting plate 9 abuts against the shaft workpiece 14 in a direction relative to the snap ring push plate 112 to complete the assembly. After the snap ring 19 is installed on the corresponding shaft workpiece 14, the outer rotating seat 18 continues to rotate. When the roller 15 moves to other portions of the inner arc surface of the roller guide rail 16, the roller 15 is subjected to a reaction force from the inner arc surface of the roller guide rail 16 and moves towards the center of the outer rotating seat 18, causing the slide 10 to move radially towards the center of the outer rotating seat 18, compressing the spring 20, causing the front limiting plate 9 to disengage from the shaft workpiece 14 so that the assembled shaft workpiece 14 can be removed.

[0058] In order to better counteract the thrust generated during the assembly process, a top support bracket 7 is fixedly installed on the upper side of the inner fixed seat 17. The top support bracket 7 has a front extension that extends horizontally toward the snap ring assembly position, and an upper support block 8 is detachably fixedly connected to the front extension. The upper support block 8 abuts against the shaft workpiece 14 in a direction relative to the snap ring push plate 112, and the point of application of the abutment force is above the snap ring 19.

[0059] The preferred automatic assembly method for snap rings proposed by the aforementioned organizations is briefly described below:

[0060] S1. Loading step: Fit several snap rings 19 one by one onto the snap ring positioning post 101, such as... Figure 4 As shown, the cross-section of the strip-shaped positioning part of the snap ring positioning post 101 matches the C-shaped opening of the snap ring 19, thus ensuring that the snap ring 19 is positioned correctly during the feeding stage, and that the C-shaped opening of the snap ring 19 always faces the assembly position. Figure 4 , 7 As shown, the snap ring positioning post 101 and its snap ring sliding guide hole 102a guide all snap rings 19 to slide downwards, while keeping the C-shaped opening of the snap ring 19 facing the assembly position.

[0061] For steps S2 and positioning snap ring 19, refer to... Figure 5 As shown, the snap ring 19 falls into the upper positioning groove 112a. At this time, the snap ring push plate 112 is in the initial position, and the snap ring support groove 112b is exactly opposite to the snap ring positioning post 101 and is located directly below the bottom of the snap ring positioning post 101, so that a single snap ring 19 can fall into the snap ring support groove 112b to position the snap ring 19 to be assembled. As the snap ring push plate 112 pushes out, the bottom of the snap ring positioning post 101 is close to the upper positioning groove 112a, so that the next snap ring 19 is close to the bottom surface of the upper positioning groove 112a, so that the next snap ring 19 can automatically fall into the snap ring support groove 112b when the snap ring push plate 112 returns to the initial position.

[0062] S3. Snap ring assembly step: When the snap ring pusher plate 112 pushes the snap ring 19 to the assembly position, the shaft workpiece 14 is also in the assembly position at this time. Figure 7 , 11 As shown, the U-shaped opening of the front limiting plate 9 is inserted into the corresponding annular groove of the shaft workpiece 14 to limit the shaft workpiece 14 axially and radially. At the same time, the upper support top block 8 abuts against the shaft workpiece 14 (the limiting structure can be further added).

[0063] Driven by the snap ring cylinder 111, the snap ring pusher plate 112 pushes the snap ring 19 into the snap ring groove of the shaft workpiece 14. At the same time, the upper support block 8 and the front limit plate 9 respectively abut against the upper end of the shaft workpiece 14 and the part below the snap ring 19. The point of force of the snap ring pusher plate 112 is located between the upper support block 8 and the front limit plate 9. The upper support block 8 and the front limit plate 9 are used to counteract the radial force applied to the shaft workpiece 14 during the snap ring insertion process, so as to prevent the shaft workpiece 14 from shifting position during the assembly process.

[0064] In the snap ring assembly process, such as Figure 7 As shown, the laser detection sensor 5 is used to detect whether the installation process of the snap ring 19 is in place and qualified. Other detection methods are not excluded.

[0065] S4. Driven by the circlip cylinder 111, the circlip push plate 112 retracts to the initial position, and the outer rotating seat 18 is driven by the rotary driver to rotate a certain angle, so that the assembled shaft workpiece 14 leaves the assembly position, allowing the next shaft workpiece 14 to switch to the assembly position, and then repeating the above steps.

[0066] It is worth mentioning that since there are two feeding and pushing units 1, the upper switching table 2 can be rotated by using the switching rotary cylinder 3 to switch the positions of the two feeding and pushing units 1 so that one of the feeding and pushing units 1 is facing the assembly position, thereby meeting the needs of mass production.

[0067] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. In this invention, it should also be noted that the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integrally formed connection, a mechanical connection, or an indirect connection through intermediate connecting parts. The specific meaning of the terms in this utility model can be understood according to the specific circumstances.

[0068] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0069] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic snap ring assembly mechanism, characterized in that, Includes a feeding and pushing unit (1); The feeding and pushing unit (1) includes: The material guiding structure is used to position the snap rings (19) and make the snap rings (19) stick together one by one from top to bottom to form a vertical row. The snap rings (19) are in a lifting and lowering motion with the material guiding structure and the opening of the snap rings (19) faces the assembly position. A circlip cylinder (111) and a circlip pusher plate (112) are provided, wherein the circlip pusher plate (112) constitutes the movable part of the circlip cylinder (111) and moves linearly in the horizontal direction; The retaining ring pusher plate (112) has the following features: The bottom of the material guiding structure extends relatively movably into the upper positioning groove (112a), and the upper positioning groove (112a) extends to the end of the snap ring push plate (112) along the moving direction of the snap ring push plate (112); The U-shaped retaining ring slot (112b) is located at the end of the retaining ring push plate (112) on the bottom surface of the upper positioning slot (112a). Its U-shaped opening faces the assembly position. When the retaining ring push plate (112) is in the initial position, the retaining ring slot (112b) is located directly below the bottom of the material guide structure, which accommodates and fits a single retaining ring (19). The mounting notch (112c) facing the assembly position is opened at the end of the snap ring push plate (112) and communicates with the snap ring bracket (112b). When the snap ring push plate (112) drives the snap ring (19) to engage with the shaft workpiece (14), the mounting notch (112c) is radially separable from the shaft workpiece (14). A circular inner base (17) is fixedly installed; An annular outer rotating seat (18) surrounding the outer circle of the inner fixed seat (17), the outer rotating seat (18) is equipped with a rotary driver and rotates horizontally around the inner fixed seat (17) under the drive of the rotary driver; Several circumferentially distributed mounting seats (13) for parts to be installed along the outer rotating seat (18) are fixedly connected to the outer rotating seat (18), and shaft workpieces (14) are detachably inserted into the mounting seats (13). Each of the mounting bases (13) is equipped with a limiting component for defining the position of the shaft workpiece (14), the limiting component comprising: A slide block (10) is fixed at the bottom of the slide block (10). The bottom slide block (11) is equipped with a guide slide rail (12) that extends horizontally along the outer rotating seat (18) in the radial direction. The guide slide rail (12) is fixedly connected to the outer rotating seat (18). The bottom slide block (11) and the guide slide rail (12) are in sliding cooperation. A front limiting plate (9) is detachably fixed to the side of the slide (10) facing the assembly position. The end of the front limiting plate (9) facing the assembly position is provided with a U-shaped opening. When the snap ring (19) is snapped onto the shaft workpiece (14), the front limiting plate (9) abuts against the shaft workpiece (14) in a direction relative to the snap ring push plate (112), and the U-shaped opening of the front limiting plate (9) engages the part of the shaft workpiece (14) below the snap ring (19) to limit the axial and radial positions of the shaft workpiece (14). The limiting component also includes: Roller (15), which is rotatably connected to the bottom of slide (10); A pair of springs (20) are provided with spring limiting seats (21) that are fixedly connected to the outer rotating seat (18). The pair of springs (20) are located on the left and right sides of the bottom slider (11). The springs (20) elastically connect the slider (10) and the spring limiting seats (21). Among them, the inner fixed seat (17) is fixedly connected to the upper side of the roller guide rail (16). The roller guide rail (16) is an arc-shaped strip, and its center coincides with the center of the inner fixed seat (17). The spring (20) pushes the sliding seat (10) and its front limit plate (9) outward along the radial direction of the outer rotating seat (18). The inner arc surface of the roller guide rail (16) has a portion that is radially outwardly recessed and faces the mounting position of the snap ring (19); when the roller (15) moves to the recessed portion of the inner arc surface of the roller guide rail (16), the front limiting plate (9) abuts against the shaft workpiece (14) in a direction relative to the snap ring push plate (112); when the roller (15) moves to other portions of the inner arc surface of the roller guide rail (16), the front limiting plate (9) disengages from the shaft workpiece (14).

2. The automatic assembly mechanism for snap rings according to claim 1, characterized in that, It also includes a switching cylinder support (4), a switching rotary cylinder (3) and an upper switching platform (2). There are two feeding and pushing units (1). The switching rotary cylinder (3) is installed on the switching cylinder support (4). Its rotating output end supports and drives the middle of the upper switching platform (2). There are two feeding and pushing units (1) and they are installed at both ends of the upper switching platform (2). When in use, one of the feeding and pushing units (1) faces the assembly station.

3. The automatic assembly mechanism for snap rings according to claim 2, characterized in that, The material guiding structure of the feeding and pushing unit (1) includes: The feeding frame (102) is fixedly installed on the upper switching table (2) and has a through-hole (102a) for sliding down the retaining ring. The cross section of the through-hole (102a) matches the retaining ring (19). A vertically extending snap ring positioning post (101) is fixedly connected to the feeding frame body (102) and has a strip-shaped guide portion that slides within the snap ring sliding guide hole (102a) and is in slidable engagement with the C-shaped opening of the snap ring (19). The gap between the bottom of the snap ring positioning post (101) and the bottom surface of the upper positioning groove (112a) is smaller than the thickness of a single snap ring (19).

4. The automatic assembly mechanism for snap rings according to claim 3, characterized in that, A clip spring shortage alarm fiber optic cable (103) is installed on the feeding frame (102) near the clip spring push plate (112), and the sensing end of the clip spring shortage alarm fiber optic cable (103) is directly opposite the clip spring positioning post (101).

5. The automatic assembly mechanism for snap rings according to claim 1, characterized in that, The end of the snap ring push plate (112) is equipped with an incoming material detection fiber (113), and the sensing end of the incoming material detection fiber (113) is facing the snap ring bracket (112b) to detect whether the snap ring (19) is incoming.

6. The automatic assembly mechanism for snap rings according to claim 1, characterized in that, Also includes: Fixed sensor bracket (6); A laser detection sensor (5) is mounted on a sensor bracket (6), with the detection end of the laser detection sensor (5) facing the mounting position of the snap ring (19) and the shaft workpiece (14).

7. The automatic assembly mechanism for snap rings according to claim 1, characterized in that, The inner fixed seat (17) is fixedly installed with a top material bracket (7). The top material bracket (7) has a front extension that extends horizontally toward the snap ring assembly position, and an upper support block (8) is detachably fixedly connected to the front extension. The upper support block (8) abuts against the shaft workpiece (14) in a direction relative to the snap ring push plate (112), and the point of application of the abutment force is above the snap ring (19).

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