A piston rod machining surface pre-treatment device

Abstract

The utility model relates to piston rod processing technical field provides a piston rod processing surface pretreatment device, including phosphating liquid groove, lifting mechanism, elevating system, stationary mechanism and first frame, the lifting mechanism sets up one side at phosphating liquid groove, elevating system sets up in phosphating liquid groove, stationary mechanism sets up on the side away from the lifting mechanism of phosphating liquid groove, first frame with the lifting mechanism cooperation, the device through the collaborative coordination of lifting mechanism, elevating system and stationary mechanism has realized the full process automation operation that piston rod was from the placement, soaking to the whole process of draining, the motor and air cylinder of lifting mechanism accurately control the elevating and transportation of first frame, compared with manual operation, has improved the processing efficiency greatly, has reduced the manpower cost, has avoided the problem that the processing quality is not stable because of the human factor simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of piston rod processing technology, specifically to a piston rod surface pretreatment device. Background Technology

[0002] In the field of mechanical manufacturing, piston rods are important transmission components, and their surface properties have a crucial impact on the overall operational reliability and service life of equipment. To enhance the wear resistance, corrosion resistance, and lubricity of piston rods, surface conversion coating treatment is often required, and phosphating is one commonly used and effective method.

[0003] In traditional piston rod phosphating processes, manual operation or simple mechanical assistance is typically used to immerse the piston rod in a phosphating solution tank. Simple mechanical assistance is inconvenient for transporting and lifting the piston rod, easily causing it to wobble. Furthermore, traditional processes lack effective draining and settling procedures for the phosphating treated piston rod, resulting in the incomplete removal of excess phosphating solution, affecting subsequent processing steps and wasting the solution. Therefore, this application is submitted. Utility Model Content

[0004] This application proposes a surface pretreatment device for piston rod machining to solve the technical problem in the prior art where the piston rod is immersed in a phosphating solution bath using manual operation or simple mechanical assistance, which is not only inconvenient to operate but also prone to piston rod shaking. The above-mentioned technical objective of this utility model is achieved through the following technical solution: A piston rod surface pretreatment device includes a phosphating solution tank, a lifting mechanism, a hoisting mechanism, a stationary mechanism, and a first frame. The lifting mechanism is disposed on one side of the phosphating solution tank, the hoisting mechanism is disposed inside the phosphating solution tank, and the stationary mechanism is disposed on the side of the phosphating solution tank away from the lifting mechanism. The first frame cooperates with the lifting mechanism. The lifting mechanism includes a support frame, a drive device, a rotating shaft, a pull rope, a cylinder, a connecting rod, a first guide wheel, a second guide wheel, and a guiding mechanism. The support frame is mounted on the phosphating solution tank, the drive device is mounted on the support frame, the rotating shaft is mounted on the support frame and connected to the drive device, the cylinder is mounted on the support frame, the connecting rod is mounted on the output end of the cylinder, the first guide wheel is mounted on the connecting rod, the second guide wheel is connected to the first guide wheel, the pull rope is wound around the rotating shaft, and the pull rope passes over the second guide wheel and the first guide wheel. An arc-shaped handle is provided at the end of the pull rope, and the first frame cooperates with the arc-shaped handle.

[0005] Preferably, the lifting mechanism includes guide rails and a sliding plate. The guide rails are symmetrically arranged on the inner wall of the phosphating solution tank, and the sliding plate is slidably arranged between the guide rails. A spring is provided between the sliding plate and the guide rails.

[0006] Preferably, the settling mechanism includes a tray and a support plate. The tray is symmetrically arranged on the top of the phosphating tank on the side away from the support frame, and the support plate is symmetrically arranged on the middle positions of both sides of the first frame.

[0007] Preferably, the guiding mechanism includes slide rails, which are respectively disposed on both sides of the support frame, and the first guide wheel is slidably connected to the slide rails on both sides.

[0008] Preferably, the driving device includes a motor, and the rotating shaft is connected to the output end of the motor.

[0009] Preferably, the phosphating solution tank is equipped with an ultrasonic vibrator.

[0010] Compared with the prior art, the beneficial effects of this utility model include: This device achieves fully automated operation of the piston rod from placement and soaking to draining through the coordinated operation of the lifting mechanism, the hoisting mechanism and the stationary mechanism. The motor and cylinder of the lifting mechanism precisely control the lifting and transportation of the first frame. Compared with manual operation, it greatly improves processing efficiency, reduces labor costs, and avoids the problem of unstable processing quality caused by human factors. The settling mechanism allows the soaked piston rods to be promptly transferred to the tray for draining, without affecting the processing of the next set of piston rods. This achieves continuous pretreatment and improves overall production efficiency. Simultaneously, the optimized draining design effectively removes excess phosphating solution, conserving resources and creating favorable conditions for subsequent processing steps. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the lifting mechanism of this utility model; Figure 3 This is a schematic diagram of the lifting mechanism of this utility model.

[0012] In the diagram: 1. Phosphating solution tank; 2. First frame; 3. Support frame; 4. Drive device; 5. Rotary shaft; 6. Pull rope; 61. Arc-shaped handle; 7. Cylinder; 8. Connecting rod; 9. First guide wheel; 10. Second guide wheel; 11. Guide rail; 12. Slide plate; 13. Pallet; 14. Support plate; 15. Slide rail. Detailed Implementation

[0013] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0016] Please see the appendix Figure 1-3 A piston rod surface pretreatment device includes a phosphating solution tank 1, a lifting mechanism, a hoisting mechanism, a stationary mechanism, and a first frame 2. The lifting mechanism is located on one side of the phosphating solution tank 1, the hoisting mechanism is located inside the phosphating solution tank 1, and the stationary mechanism is located on the side of the phosphating solution tank 1 away from the lifting mechanism. The first frame 2 cooperates with the lifting mechanism. The lifting mechanism includes a support frame 3, a drive device 4, a rotating shaft 5, a pull rope 6, a cylinder 7, a connecting rod 8, a first guide wheel 9, a second guide wheel 10, and a guiding mechanism. The support frame 3 is mounted on the phosphating liquid tank 1, the drive device 4 is mounted on the support frame 3, the rotating shaft 5 is mounted on the support frame 3 and connected to the drive device 4, the cylinder 7 is mounted on the support frame 3, the connecting rod 8 is mounted on the output end of the cylinder 7, the first guide wheel 9 is mounted on the connecting rod 8, the second guide wheel 10 is connected to the first guide wheel 9, the pull rope 6 is wound around the rotating shaft 5, and the pull rope 6 passes over the second guide wheel 10 and the first guide wheel 9. An arc-shaped handle 61 is provided at the end of the pull rope 6, and the first frame 2 cooperates with the arc-shaped handle 61.

[0017] The drive unit 4 includes a motor, and the rotating shaft 5 is connected to the output end of the motor.

[0018] First, the piston rod that needs to be phosphated is placed in the first frame 2. The first frame 2 is then lifted to carry the piston rod through the steps of immersion in the phosphate solution tank 1, removal from the phosphate solution tank 1, and placement on the settling mechanism for draining, thereby completing the surface pretreatment of the piston rod. The lifting mechanism is used to transport the first frame 2 up and down, accurately placing the first frame 2 with the piston rod into and removing it from the phosphating solution tank 1. The support frame 3 serves as the basic structure, firmly set on the phosphating solution tank 1, providing installation support for other components. When the motor rotates, it drives the rotating shaft 5 to rotate clockwise or counterclockwise according to the control command. When the first frame 2 needs to be placed into the phosphating solution tank 1, the motor is controlled to rotate, driving the rotating shaft 5 to rotate and release the wire. At the same time, the cylinder 7 starts to work, and the output end of the cylinder 7 extends to push the connecting rod 8. The connecting rod 8 drives the first guide wheel 9 and the second guide wheel 10 to extend together. At this time, the pull rope 6 is wound around the rotating shaft 5, passing over the second guide wheel 10 and the first guide wheel 9. The arc-shaped handle 61 at the end of the pull rope 6 can accurately hook the sliding grooves at both ends of the first frame 2 under the action of the extended guide wheel. After the hooking action is completed, the motor rotates and drives the rotating shaft 5 to rotate in both directions. Through the actions of reeling in and releasing the line, the cylinder 7 retracts and drives the connecting rod 8 to retract the first guide wheel 9 and the second guide wheel 10. Under the traction of the pull rope 6, the first frame 2 is lifted steadily and placed on the slide plate 12 in the phosphating solution tank 1. After phosphating is completed, when the first frame 2 is taken out from the phosphating solution tank 1, the motor is controlled to work again to drive the rotating shaft 5 to rotate and reel in the line, lifting the first frame 2 from the phosphating solution tank 1 and placing the first frame 2 on the stationary mechanism to allow excess liquid on the piston rod surface to drain.

[0019] The lifting mechanism includes a guide rail 11 and a slide plate 12. The guide rail 11 is symmetrically arranged on the inner wall of the phosphating liquid tank 1, and the slide plate 12 is slidably arranged between the guide rail 11. A spring is provided between the slide plate 12 and the guide rail 11.

[0020] When the lifting mechanism places the first frame 2 on the slide plate 12, the weight of the first frame 2 and the piston rod is applied to the slide plate 12, causing the slide plate 12 to overcome the spring force and move downward along the guide rail 11, thereby gradually immersing it in the phosphating solution tank 1 to achieve the immersion treatment of the piston rod. After immersion, the lifting mechanism pulls the first frame 2 upward through the pull rope 6. At this time, under the reset action of the spring, the spring restores its deformation and generates an upward elastic force, pushing the slide plate 12 to gradually move upward along the guide rail 11, assisting the first frame 2 to rise quickly and smoothly from the phosphating solution until the slide plate 12 rises to a suitable position, so that the lifting mechanism can remove the first frame 2 from the phosphating solution tank 1.

[0021] The settling mechanism includes a tray 13 and a support plate 14. The tray 13 is symmetrically arranged on the top of the phosphating liquid tank 1 on the side away from the support frame 3, and the support plate 14 is symmetrically arranged on both sides of the first frame 2 at the middle position.

[0022] After the lifting mechanism removes the first frame 2, which has completed soaking, from the phosphating solution tank 1, it moves horizontally above the tray 13 by controlling the movement of the lifting mechanism. At this time, the support plates 14 on both sides of the first frame 2 rest precisely on the trays 13, allowing the first frame 2 to be stably placed on the trays 13. In this way, the phosphating solution inside the first frame 2 and the excess phosphating solution adhering to the piston rod surface can drain naturally under gravity, preparing for subsequent processing. At the same time, the arrangement of the trays 13 does not affect the lifting mechanism's operation on the next first frame 2 with a piston rod to be soaked, achieving continuity of the pretreatment work.

[0023] The guiding mechanism includes slide rails 15, which are respectively arranged on both sides of the support frame 3. The first guide wheel 9 is slidably connected to the slide rails 15 on both sides.

[0024] When the cylinder 7 controls the extension and retraction of the first guide wheel 9 and the second guide wheel 10, the first guide wheel 9 moves along the slide rail 15 to avoid the change in the direction of the pull force of the rope 6 due to the random shaking of the first guide wheel 9. This ensures that the arc handle 61 can stably and accurately hook and lift the first frame 2, improves the reliability and stability of the lifting mechanism, and ensures the smooth progress of the piston rod pretreatment work. An ultrasonic vibrator is installed in the phosphating solution tank 1.

[0025] When the ultrasonic vibrator is working, it generates high-frequency vibrations in the phosphating solution. This vibration causes the liquid molecules in the phosphating solution to move violently, forming countless tiny cavitation bubbles. During the formation, growth, and sudden closure of the cavitation bubbles, huge pressure and energy release are generated. In the piston rod phosphating process, this energy release can effectively remove oil and impurities from the piston rod surface and promote the chemical reaction between the phosphating solution and the piston rod surface. On the one hand, the impact force of cavitation bubbles can break the adsorption force between oil and piston rod surface, causing the oil to detach from the surface; on the other hand, it can accelerate the diffusion and migration of ions in phosphating solution, promoting a faster and more uniform phosphating reaction, thereby forming a better and more uniform conversion film on piston rod surface, improving the effect and quality of piston rod surface pretreatment.

[0026] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A surface pretreatment device for piston rod machining, characterized in that, It includes a phosphating solution tank (1), a lifting mechanism, a hoisting mechanism, a stationary mechanism, and a first frame (2). The lifting mechanism is located on one side of the phosphating solution tank (1), the hoisting mechanism is located inside the phosphating solution tank (1), and the stationary mechanism is located on the side of the phosphating solution tank (1) away from the lifting mechanism. The first frame (2) cooperates with the lifting mechanism. The lifting mechanism includes a support frame (3), a drive device (4), a rotating shaft (5), a pull rope (6), a cylinder (7), a connecting rod (8), a first guide wheel (9), a second guide wheel (10), and a guiding mechanism. The support frame (3) is mounted on the phosphating tank (1), the drive device (4) is mounted on the support frame (3), the rotating shaft (5) is mounted on the support frame (3), and the rotating shaft (5) is connected to the drive device (4). The cylinder (7) is mounted on the support frame (1). 3) The connecting rod (8) is set on the output end of the cylinder (7), the first guide wheel (9) is set on the connecting rod (8), the second guide wheel (10) is connected to the first guide wheel (9), the pull rope (6) is wound on the rotating shaft (5), the pull rope (6) passes around the second guide wheel (10) and the first guide wheel (9), and the end of the pull rope (6) is provided with an arc-shaped handle (61), and the first frame (2) cooperates with the arc-shaped handle (61).

2. The piston rod surface pretreatment device according to claim 1, characterized in that, The lifting mechanism includes a guide rail (11) and a sliding plate (12). The guide rail (11) is symmetrically arranged on the inner wall of the phosphating liquid tank (1). The sliding plate (12) is slidably arranged between the guide rail (11). A spring is provided between the sliding plate (12) and the guide rail (11).

3. The piston rod surface pretreatment device according to claim 1, characterized in that, The stationary mechanism includes a tray (13) and a support plate (14). The tray (13) is symmetrically arranged on the top of the phosphating tank (1) away from the support frame (3), and the support plate (14) is symmetrically arranged on the middle of both sides of the first frame (2).

4. The piston rod surface pretreatment device according to claim 1, characterized in that, The guiding mechanism includes slide rails (15), which are respectively arranged on both sides of the support frame (3), and the first guide wheel (9) is slidably connected to the slide rails (15) on both sides.

5. The piston rod surface pretreatment device according to claim 1, characterized in that, The drive device (4) includes a motor, and the rotating shaft (5) is connected to the output end of the motor.

6. The piston rod surface pretreatment device according to claim 1, characterized in that, An ultrasonic vibrator is installed in the phosphating solution tank (1).

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