Automatic assembly of valve core snap spring mechanism

Abstract

The application provides a valve core automatic assembly snap spring mechanism, which makes the assembly of the snap spring quick and efficient, ensures the stability of the assembly and product quality. The mechanism is used for fixing the snap spring on the top of the valve core and characterized in that it comprises a straight production line provided with a carrier moving in steps and provided with a snap spring assembly station, and a snap spring assembly table comprising a vertical stand, an upper snap spring assembly mechanism, and a lower workpiece clamping and lifting mechanism. The upper snap spring assembly mechanism comprises a snap spring step feeding assembly, a snap spring pressing-down assembly, and a snap spring guiding assembly. The lower workpiece clamping and lifting mechanism comprises a lifting assembly, a clamping cylinder assembly, and a pair of clamping blocks.

Description

Technical Field

[0001] This invention relates to the technical field of valve core assembly, specifically to an automatic valve core assembly snap ring mechanism. Background Technology

[0002] During the assembly process, a retaining spring structure needs to be installed at the top of the valve core. In existing technology, see... Figure 1 The top of workpiece 1 (i.e., valve core) requires manual assembly of the retaining ring 2. In the actual assembly process, manual assembly is time-consuming and labor-intensive, and it needs to be completed in a short time. The valve core position is fixed, the retaining ring is picked up, and then the retaining ring is pressed onto the top of the valve core by external force. When there are many valve cores or when batch assembly is required, a large amount of manpower is needed for assembly. Moreover, during actual assembly, due to worker fatigue or distraction, defective products with unreliable retaining rings are prone to occur, resulting in a high scrap rate. Therefore, it is urgent to develop a mechanism that can automatically assemble the retaining ring onto the valve core. Summary of the Invention

[0003] To address the aforementioned issues, this invention provides an automatic valve core assembly snap ring mechanism, which enables quick and efficient snap ring assembly while ensuring assembly stability and product quality.

[0004] An automatic valve core assembly snap ring mechanism, used to secure the snap ring to the top of the valve core, is characterized by comprising: A linear production line equipped with a stepping carrier, wherein a snap ring assembly station is provided on the linear production line; And a snap ring assembly table, which includes a vertical frame, an upper snap ring assembly mechanism, and a lower workpiece clamping and lifting mechanism. The upper snap ring assembly mechanism includes a snap ring stepping feeding assembly, a snap ring pressing assembly, and a snap ring guiding assembly. The lower workpiece clamping and lifting mechanism includes a lifting assembly, a clamping cylinder assembly, and a pair of clamping blocks. A vertical frame is provided above the snap ring assembly station of the linear production line. The upper snap ring assembly mechanism is located on the upper layer of the vertical frame, and the lower workpiece clamping and lifting mechanism is located in the lower area of ​​the vertical frame. After the carrier moves the workpiece to the corresponding position of the snap ring assembly station, the lower workpiece clamping and lifting mechanism drives the clamping block to clamp the workpiece through the clamping cylinder assembly and lifts the workpiece through the lifting assembly, so that the workpiece is located directly below the snap ring guide assembly. The snap ring stepping feeding assembly pushes a single snap ring to the entrance of the snap ring guide assembly. Then, the snap ring pressing assembly drives the pressing rod to press down and press the snap ring along the inner cavity of the snap ring guide assembly to the corresponding position on the top of the workpiece. The lower workpiece clamping and lifting mechanism descends and resets, placing the workpiece back on the carrier. Then, the clamping cylinder assembly drives the clamping block to release the workpiece, and the lower workpiece clamping and lifting mechanism rises and resets.

[0005] Its further features are: The linear production line is equipped with two sets of adjacent snap ring assembly stations. Each set of snap ring assembly stations corresponds to an upper snap ring assembly mechanism and a lower workpiece clamping and lifting mechanism. When any of the upper snap ring assembly mechanisms or the lower workpiece clamping and lifting mechanisms malfunctions or needs to be repaired, the other set of upper snap ring assembly mechanisms and lower workpiece clamping and lifting mechanisms is activated to ensure continuous operation. Each of the lower workpiece clamping and lifting mechanisms also includes a front and rear drive mechanism and an L-shaped mounting bracket. Each set of front and rear drive mechanisms includes a bottom guide rail and a front and rear drive assembly. The L-shaped mounting bracket is mounted on the bottom guide rail and is driven to move back and forth by the front and rear drive assembly, thereby accurately adjusting the front and rear positions of a pair of clamping blocks to reliably align with the workpiece. A lifting assembly is fixedly mounted on the front surface of the L-shaped mounting bracket. The clamping cylinder assembly is fixedly mounted on the front output end of the lifting assembly. Each set of clamping jaws at the front end of the clamping cylinder assembly is fixedly mounted with a clamping block. The clamping blocks are arranged facing each other and are used to clamp the workpiece. The spring clip step feeding assembly includes a mounting plate, an upper guide post, a guide cavity, a stepping pusher block, and a pusher cylinder. The upper guide post is fitted with several spring clips in layers. One side of the upper guide post is provided with a lateral protrusion guide. The bottom of the lateral protrusion guide is used to fix the outer support seat, so that the upper guide post does not contact the upper surface of the mounting plate. This forms a guide cavity between the upper surface of the mounting plate and the bottom surface of the upper guide post. The guide cavity is connected to the upper notch position of the spring clip guide assembly. The output end of the pusher cylinder is connected to the stepping pusher block. The end of the stepping pusher block faces the guide cavity. Each time the end of the stepping pusher block moves, it drives a spring clip to the upper notch position of the spring clip guide assembly. The snap ring pressing assembly includes a drive cylinder, a transmission guide box, and a pressing rod. The output end of the drive cylinder is fixed to the top of the pressing rod through the transmission guide box. The top of the pressing rod is used to press the snap ring through the inner cavity of the snap ring guide assembly onto the top of the workpiece. The upper plate of the vertical frame is provided with front and rear moving guide rails for each set of mounting plates. Each set of mounting plates is embedded in the corresponding front and rear moving guide rails. The vertical frame is also provided with a front and rear driving mechanism for each set of mounting plates. The front and rear driving mechanism drives each set of mounting plates to move back and forth. When the upper circlip assembly mechanism of the corresponding circlip assembly station needs to be repaired, it is only necessary to drive the upper circlip assembly mechanism out of the circlip assembly station through the front and rear driving mechanism, so that the repair does not interfere with the normal operation of the equipment.

[0006] After adopting this invention, the carrier moves the workpiece to the corresponding position for snap ring assembly. The lower workpiece clamping and lifting mechanism drives the clamping block to clamp the workpiece through the clamping cylinder assembly and lifts the workpiece through the lifting assembly, so that the workpiece is located directly below the snap ring guide assembly. The snap ring stepping feeding assembly pushes the single snap ring to the inlet of the snap ring guide assembly. Then, the snap ring pressing assembly drives the pressing rod to press down and press the snap ring along the inner cavity of the snap ring guide assembly to the corresponding position on the top of the workpiece. The lower workpiece clamping and lifting mechanism descends and resets, placing the workpiece back on the carrier. Then, the clamping cylinder assembly drives the clamping block to release the workpiece, and the lower workpiece clamping and lifting mechanism rises and resets. Afterward, the linear production line drives the carrier to transport the product to the next station. The lower workpiece clamping and lifting mechanism and the upper snap ring assembly mechanism wait for the workpiece to be assembled with snap rings. This makes snap ring assembly quick and efficient, and ensures the stability of the assembly, thus ensuring product quality. Attached Figure Description

[0007] Figure 1 This is a perspective view of the workpiece corresponding to the present invention; Figure 2 This is the front view of the present invention; Figure 3 This is a perspective view of the present invention; Figure 4 This is a partial three-dimensional representation of the present invention. Figure 1 ; Figure 5 This is a partial three-dimensional representation of the present invention. Figure 2 ; Figure 6 This is an assembly cross-sectional view of the stepper feeding assembly and the snap ring guide assembly of the present invention; The names corresponding to the serial numbers in the diagram are as follows: Valve core 1, snap ring 2; Linear production line 10, carrier 11, snap ring assembly station 101, snap ring assembly table 20, vertical frame 30, front and rear moving guide rails 31, front and rear drive mechanism 32, upper snap ring assembly mechanism 40, lower workpiece clamping and lifting mechanism 50, snap ring stepping feeding assembly 60, mounting plate 61, upper guide column 62, side convex guide 621, guide cavity 63, stepping pusher block 64, pusher cylinder 65, peripheral support seat 66, snap ring pressing assembly 70, drive cylinder 71, transmission guide box 72, pressing rod 73, snap ring guide assembly 80, upper notch 801, lifting assembly 90, L-shaped mounting bracket 100, clamping cylinder assembly 110, clamping block 120, front and rear drive mechanism 130, bottom guide rail 131, front and rear drive assembly 132. Detailed Implementation

[0008] The valve core automatic assembly snap ring mechanism is used to fix snap ring 1 to the top of valve core 2, see Figures 1-6It includes a linear production line 10 and a snap ring assembly table 20; The linear production line 10 is equipped with a stepping carrier 11 and a snap ring assembly station 101. The snap ring assembly table 20 includes a vertical frame 30, an upper snap ring assembly mechanism 40, and a lower workpiece clamping and lifting mechanism 50. The upper snap ring assembly mechanism 40 includes a snap ring stepping feeding assembly 60, a snap ring pressing assembly 70, and a snap ring guide assembly 80. The lower workpiece clamping and lifting mechanism 50 includes a lifting assembly 90, a clamping cylinder assembly 110, and a pair of clamping blocks 120. A vertical frame 30 is installed above the snap ring assembly station 101 of the linear production line 10. An upper snap ring assembly mechanism 40 is located on the upper layer of the vertical frame 30, and a lower workpiece clamping and lifting mechanism 50 is located in the lower area of ​​the vertical frame 30. After the carrier 11 moves the workpiece to the corresponding position in the snap ring assembly station 101, the lower workpiece clamping and lifting mechanism 50 drives the clamping block 120 to clamp the workpiece via the clamping cylinder assembly 110 and lifts the workpiece via the lifting assembly 90, so that the workpiece is positioned in the snap ring assembly station 101. Directly below the spring guide assembly 80, the snap ring stepping feeding assembly 60 pushes a single snap ring 1 to the inlet of the snap ring guide assembly 80. Then, the snap ring pressing assembly 70 drives the pressing rod 73 to press the snap ring 1 along the inner cavity 801 of the snap ring guide assembly 80 to the corresponding position on the top of the workpiece. The lower workpiece clamping lifting mechanism 50 descends and resets, placing the workpiece back on the carrier 11. Then, the clamping cylinder assembly 110 drives the clamping block 120 to release the workpiece, and the lower workpiece clamping lifting mechanism 50 rises and resets.

[0009] In a specific embodiment, the linear production line 10 is provided with two sets of adjacent snap ring assembly stations 101. Each set of snap ring assembly stations 101 corresponds to an upper snap ring assembly mechanism 40 and a lower workpiece clamping and lifting mechanism 50. When any of the upper snap ring assembly mechanisms 40 or the lower workpiece clamping and lifting mechanism 50 malfunctions or needs to be repaired, the other set of upper snap ring assembly mechanisms 40 and lower workpiece clamping and lifting mechanisms 50 is activated to ensure continuous operation.

[0010] In a specific embodiment, each lower workpiece clamping and lifting mechanism 50 further includes a front and rear drive mechanism 130 and an L-shaped mounting bracket 100. Each set of front and rear drive mechanisms 130 includes a bottom guide rail 131 and a front and rear drive assembly 132. The L-shaped mounting bracket 100 is mounted on the bottom guide rail 131 and driven to move back and forth by the front and rear drive assembly 132, thereby accurately adjusting the front and rear positions of a pair of clamping blocks 120 to reliably align with the workpiece. A lifting assembly 90 is fixed on the front surface of the L-shaped mounting bracket 100. A clamping cylinder assembly 110 is fixed on the front output end of the lifting assembly 90. Each set of clamping jaws at the front end of the clamping cylinder assembly 110 is fixed with a clamping block 120. The clamping blocks 120 are arranged facing each other and are used to clamp the workpiece.

[0011] In specific implementation, the snap ring step feeding assembly 60 includes a mounting plate 61, an upper guide post 62, a guide cavity 63, a stepping pusher block 64, and a pusher cylinder 65. The upper guide post 62 is provided with a plurality of snap rings 1 stacked on top of each other. A side protrusion guide 621 is provided on one side of the upper guide post 62. The bottom of the side protrusion guide 621 is used to fix the outer support seat 66 so that the upper guide post 62 does not contact the upper surface of the mounting plate 61. Thus, a guide cavity 63 is formed between the upper surface of the mounting plate 61 and the bottom surface of the upper guide post. The guide cavity 63 is connected to the upper notch position of the snap ring guide assembly 80. The output end of the pusher cylinder 65 is connected to the stepping pusher block 64. The end of the stepping pusher block 64 is set towards the guide cavity 63. Each time the end of the stepping pusher block 64 moves, it drives a snap ring 1 to move to the upper notch 801 position of the snap ring guide assembly 80. The snap ring pressing assembly 70 includes a drive cylinder 71, a transmission guide box 72, and a pressing rod 73. The output end of the drive cylinder 71 is fixed to the top of the pressing rod 73 through the transmission guide box 72. The top of the pressing rod 73 is used to press the snap ring 1 through the inner cavity of the snap ring guide assembly 80 onto the top of the workpiece. The upper plate of the vertical frame 30 is provided with front and rear moving guide rails 31 for each set of mounting plates 61. Each set of mounting plates 61 is embedded in the corresponding front and rear moving guide rails 31. The vertical frame 30 is also provided with a front and rear driving mechanism 32 for each set of mounting plates 61. The front and rear driving mechanism 32 drives each set of mounting plates 61 to move back and forth. When the upper circlip assembly mechanism 40 of the corresponding circlip assembly station 101 needs to be repaired, it is only necessary to drive the upper circlip assembly mechanism 40 out of the circlip assembly station 101 by the front and rear driving mechanism 32, so that the repair does not interfere with the normal operation of the equipment.

[0012] Its working principle is as follows: After the carrier moves the workpiece to the corresponding position for snap ring assembly, the lower workpiece clamping and lifting mechanism drives the clamping block to clamp the workpiece through the clamping cylinder assembly and lifts the workpiece through the lifting assembly, so that the workpiece is located directly below the snap ring guide assembly. The snap ring stepping feeding assembly pushes the single snap ring to the inlet of the snap ring guide assembly. Then, the snap ring pressing assembly drives the pressing rod to press down and press the snap ring along the inner cavity of the snap ring guide assembly to the corresponding position on the top of the workpiece. The lower workpiece clamping and lifting mechanism descends and resets, placing the workpiece back on the carrier. Then, the clamping cylinder assembly drives the clamping block to release the workpiece, and the lower workpiece clamping and lifting mechanism rises and resets. Then, the linear production line drives the carrier to transport the product to the next station. The lower workpiece clamping and lifting mechanism and the upper snap ring assembly mechanism wait for the workpiece to be assembled with snap rings. This makes snap ring assembly quick and efficient, and ensures the stability of the assembly, thus ensuring product quality.

[0013] 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 in all respects as exemplary and non-limiting, 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. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0014] 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 valve core assembly snap ring mechanism, used to fix the snap ring to the top of the valve core, characterized in that, It includes: A linear production line equipped with a stepping carrier, wherein a snap ring assembly station is provided on the linear production line; And a snap ring assembly table, which includes a vertical frame, an upper snap ring assembly mechanism, and a lower workpiece clamping and lifting mechanism. The upper snap ring assembly mechanism includes a snap ring stepping feeding assembly, a snap ring pressing assembly, and a snap ring guiding assembly. The lower workpiece clamping and lifting mechanism includes a lifting assembly, a clamping cylinder assembly, and a pair of clamping blocks. A vertical frame is provided above the snap ring assembly station of the linear production line. The upper snap ring assembly mechanism is located on the upper layer of the vertical frame, and the lower workpiece clamping and lifting mechanism is located in the lower area of ​​the vertical frame. After the carrier moves the workpiece to the corresponding position of the snap ring assembly station, the lower workpiece clamping and lifting mechanism drives the clamping block to clamp the workpiece through the clamping cylinder assembly and lifts the workpiece through the lifting assembly, so that the workpiece is located directly below the snap ring guide assembly. The snap ring stepping feeding assembly pushes a single snap ring to the entrance of the snap ring guide assembly. Then, the snap ring pressing assembly drives the pressing rod to press down and press the snap ring along the inner cavity of the snap ring guide assembly to the corresponding position on the top of the workpiece. The lower workpiece clamping and lifting mechanism descends and resets, placing the workpiece back on the carrier. Then, the clamping cylinder assembly drives the clamping block to release the workpiece, and the lower workpiece clamping and lifting mechanism rises and resets.

2. The valve core automatic assembly snap ring mechanism according to claim 1, characterized in that: The linear production line is equipped with two sets of adjacent snap ring assembly stations. Each set of snap ring assembly stations corresponds to an upper snap ring assembly mechanism and a lower workpiece clamping and lifting mechanism. When any of the upper snap ring assembly mechanisms or the lower workpiece clamping and lifting mechanisms malfunctions or needs to be repaired, the other set of upper snap ring assembly mechanisms and lower workpiece clamping and lifting mechanisms is activated.

3. The valve core automatic assembly snap ring mechanism according to claim 2, characterized in that: Each of the lower workpiece clamping and lifting mechanisms also includes a front and rear drive mechanism and an L-shaped mounting bracket. Each set of front and rear drive mechanisms includes a bottom guide rail and a front and rear drive assembly. The L-shaped mounting bracket is mounted on the bottom guide rail and is driven to move back and forth by the front and rear drive assembly, thereby accurately adjusting the front and rear positions of a pair of clamping blocks to reliably align with the workpiece.

4. The valve core automatic assembly snap ring mechanism according to claim 3, characterized in that: A lifting assembly is fixedly mounted on the front surface of the L-shaped mounting bracket. The clamping cylinder assembly is fixedly mounted on the front output end of the lifting assembly. Each set of clamping jaws at the front end of the clamping cylinder assembly is fixedly mounted with a clamping block. The clamping blocks are arranged facing each other and are used to clamp the workpiece.

5. The valve core automatic assembly snap ring mechanism according to claim 1, characterized in that: The spring clip step feeding assembly includes a mounting plate, an upper guide post, a guide cavity, a stepping pusher block, and a pusher cylinder. The upper guide post is fitted with several spring clips in a stacked manner. One side of the upper guide post has a lateral protrusion guide. The bottom of the lateral protrusion guide is used to fix the outer support seat, preventing the upper guide post from contacting the upper surface of the mounting plate. This creates a guide cavity between the upper surface of the mounting plate and the bottom surface of the upper guide post. The guide cavity connects to the upper notch position of the spring clip guide assembly. The output end of the pusher cylinder is connected to the stepping pusher block. The end of the stepping pusher block faces the guide cavity. Each feeding movement of the end of the stepping pusher block drives a spring clip to the upper notch position of the spring clip guide assembly.

6. The valve core automatic assembly snap ring mechanism according to claim 1, characterized in that: The snap ring pressing assembly includes a drive cylinder, a transmission guide box, and a pressing rod. The output end of the drive cylinder is fixed to the top of the pressing rod through the transmission guide box. The top of the pressing rod is used to press the snap ring through the inner cavity of the snap ring guide assembly onto the top of the workpiece.

7. The valve core automatic assembly snap ring mechanism according to claim 1, characterized in that: The upper plate of the vertical frame is provided with front and rear moving guide rails for each group of mounting plates. Each group of mounting plates is embedded in the corresponding front and rear moving guide rails. The vertical frame is also provided with a front and rear driving mechanism for each group of mounting plates. The front and rear driving mechanism drives each group of mounting plates to move back and forth.

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