Precise positioning and efficient cleaning device for ultrasonic pickling of bolt fasteners
By introducing a precision positioning mechanism and a stirring system into the bolt fastener cleaning device, the problems of bolt fastener positioning in the cleaning tank and uneven flow of cleaning fluid are solved, achieving efficient and uniform cleaning of bolt fasteners, protecting the surface quality of bolts, and meeting the needs of large-scale production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI YIBIAO AUTO PARTS CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-24
AI Technical Summary
Existing bolt and fastener cleaning devices are difficult to position precisely, causing bolts to collide and become entangled in the cleaning tank, resulting in uneven flow of cleaning fluid, which affects the cleaning effect and efficiency and cannot meet the needs of large-scale production.
A precision positioning mechanism was designed, comprising a mounting bracket, an electric push rod, a connecting bracket, and a fixing frame with positioning holes. Combined with a stirring system that drives a stirring rod to rotate via a drive motor, and an ultrasonic generator that produces high-frequency vibrations, the positioning holes enable precise positioning of bolts and uniform flow of cleaning fluid, avoiding collisions and uneven local concentrations.
It achieves precise positioning of bolts and fasteners, protects surface quality, ensures uniform ultrasonic energy application, improves the consistency and efficiency of cleaning results, and meets the needs of large-scale production.
Smart Images

Figure CN224160703U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bolt fastener processing technology, and in particular to a precise positioning and efficient cleaning device for ultrasonic acid pickling of bolt fasteners. Background Technology
[0002] Ultrasonic pickling is a commonly used cleaning method in the production and maintenance of bolts and fasteners, and it can effectively remove surface oil, rust and other impurities.
[0003] However, existing cleaning devices have some problems. On the one hand, bolts and fasteners are difficult to position accurately in the cleaning tank and are prone to collision and entanglement under ultrasonic action, which not only affects the cleaning effect but may also cause damage to the bolt surface. On the other hand, the flow of cleaning fluid in the tank is not uniform, and the cleaning fluid in some areas is not updated in time, resulting in low cleaning efficiency and failing to meet the needs of large-scale production.
[0004] Therefore, it is necessary to provide a precise positioning and efficient cleaning device for ultrasonic acid pickling of bolts and fasteners to solve the above-mentioned technical problems. Utility Model Content
[0005] This invention provides a precise positioning and efficient cleaning device for ultrasonic acid pickling of bolts and fasteners, solving the problems in the background art.
[0006] To address the aforementioned technical problems, this utility model provides a precise positioning and efficient cleaning device for ultrasonic acid pickling of bolt fasteners. The device includes a main body, a mounting frame mounted on its top surface, an electric push rod vertically mounted on the top surface of the mounting frame, and a connecting frame extending through the surface of the mounting frame from the output end of the electric push rod. A fixing frame is located at the bottom of the connecting frame, with a positioning hole extending through its bottom. The inner diameter of the positioning hole is larger than the outer diameter of the threaded post of the bolt fastener but smaller than the outer diameter of the top limiting cap. By configuring the mounting frame, electric push rod, connecting frame, and fixing frame with the positioning hole on the top of the main body, a precise positioning mechanism is formed. The special diameter design of the positioning hole allows the bolt fasteners to be quickly and accurately fixed, completely solving the problem of bolts being difficult to position in the cleaning tank and prone to collisions and entanglement in traditional cleaning devices. This not only protects the surface quality of the bolts, reducing defects such as scratches and dents caused by collisions, but also ensures that ultrasonic energy is applied evenly to the bolt surface, improving the consistency of the cleaning effect and providing high-quality bolt fasteners for subsequent production and processing.
[0007] Preferably, a drive motor is mounted on the bottom surface of the device body, and a mounting plate is provided through the output end of the drive motor on the bottom surface of the device body. A stirring rod is mounted on the mounting plate, and the drive motor, mounting plate, and stirring rod at the bottom of the device body constitute a stirring system. During the cleaning process, the drive motor drives the stirring rod to rotate, causing the cleaning solution to form a stable and uniform flow in the tank. This uniform flow can effectively avoid situations where the local concentration of the cleaning solution is too high or too low, allowing acidic components and dissolved impurities in the cleaning solution to diffuse and renew in a timely manner. This ensures that each bolt fastener can be cleaned in a sufficient and effective cleaning solution environment, significantly improving cleaning efficiency and meeting the stringent requirements of large-scale production for cleaning efficiency.
[0008] Preferably, an ultrasonic generator is installed at the bottom of the device body, which can generate high-frequency ultrasonic waves. When the ultrasonic waves propagate in the cleaning fluid, they produce a cavitation effect, forming countless tiny bubbles on the surface of the bolt fasteners. The powerful impact force generated when these bubbles burst can penetrate deep into the threads, gaps, and other complex structural parts of the bolts, thoroughly removing stubborn oil stains, rust, and other impurities. This greatly enhances the depth and thoroughness of the cleaning, achieving a cleaning effect that is difficult to achieve with traditional cleaning methods.
[0009] Preferably, multiple positioning holes are provided, and these multiple positioning holes are equally spaced inside the fixed frame. The multiple positioning holes equally spaced inside the fixed frame increase the number of bolts that can be cleaned at one time, thus improving the working efficiency of the cleaning device. On the other hand, the equally spaced design ensures that each bolt can obtain a relatively independent and uniform cleaning environment during the cleaning process, avoiding cleaning blind spots and mutual interference caused by densely placed bolts, and further improving the uniformity and reliability of the cleaning effect.
[0010] Preferably, a drain pipe is installed through the lower outer surface of the device body, and a valve is installed on the drain pipe. The design of the drain pipe and valve on the outer side of the device body allows the dirty cleaning solution to be discharged quickly and conveniently after cleaning. By controlling the valve opening and closing, the draining process can be precisely controlled, facilitating timely replacement of the cleaning solution, maintaining the cleanliness and effectiveness of the cleaning solution, preparing for the next cleaning operation, and ensuring the stability and continuity of cleaning quality.
[0011] Preferably, the device body has multiple support legs at its bottom, and these legs are equidistantly installed at the four corners of the bottom of the device body. This provides a stable support structure for the device. During the cleaning process, especially under ultrasonic vibration and stirring rod agitation, the support legs ensure stable placement of the device, preventing displacement and shaking caused by vibration, ensuring safe and reliable cleaning, and extending the device's service life.
[0012] Preferably, a controller is mounted on the outer surface of the device body. This controller integrates control functions for key components such as the electric push rod, ultrasonic generator, and drive motor. Operators can use the controller to start, stop, or adjust the working status of each component with a single button, achieving automated and intelligent control of the entire cleaning process. This not only reduces the complexity and labor intensity of manual operation but also further optimizes the cleaning process and improves cleaning effect and work efficiency by precisely controlling parameters such as cleaning time and stirring speed.
[0013] Compared with related technologies, the precise positioning and efficient cleaning device for ultrasonic acid pickling of bolt fasteners provided by this utility model has the following advantages:
[0014] Compared with existing technologies, by creating positioning holes inside the fixed frame, with the inner diameter of the positioning holes being larger than the outer diameter of the threaded post of the bolt fastener but smaller than the outer diameter of the top limiting cap, precise positioning of the bolt fastener can be achieved. During the ultrasonic pickling process, the bolt fastener is firmly confined within the positioning holes, preventing collisions and entanglement caused by ultrasonic waves in the cleaning tank. This effectively protects the bolt surface from damage, ensuring that the cleaned bolts meet quality standards, and also improves the uniformity and stability of the cleaning effect.
[0015] Compared to existing technologies, the drive motor mounted on the bottom surface of the device rotates the mounting plate and stirring rod, agitating the cleaning solution. This agitation method ensures more uniform flow of the cleaning solution within the tank, avoiding the problem of untimely cleaning solution replenishment in some areas. The uniformly flowing cleaning solution can fully contact the surface of bolts and fasteners, accelerating the dissolution and removal of impurities such as oil and rust, significantly improving cleaning efficiency and meeting the demand for high-efficiency cleaning in large-scale production.
[0016] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description
[0017] Figure 1 A schematic diagram of the structure of a precise positioning and efficient cleaning device for ultrasonic acid pickling of bolt fasteners provided by this utility model;
[0018] Figure 2 A schematic diagram of the internal structure of a precise positioning and efficient cleaning device for ultrasonic acid pickling of bolt fasteners provided by this utility model.
[0019] Figure 3 A schematic diagram of the fixing frame structure of a precise positioning and efficient cleaning device for ultrasonic acid pickling of bolt fasteners provided by this utility model.
[0020] Figure 4 A schematic diagram of the stirring rod structure of a precise positioning and efficient cleaning device for ultrasonic acid pickling of bolt fasteners provided by this utility model.
[0021] Numbering on the map:
[0022] 1. Device body; 2. Mounting frame; 3. Controller; 4. Electric push rod; 5. Connecting frame; 6. Drain pipe; 7. Support leg; 8. Drive motor; 9. Fixing frame; 10. Ultrasonic generator; 11. Stirring rod; 12. Mounting plate; 13. Positioning hole. Detailed Implementation
[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0024] First Embodiment
[0025] Please refer to the following: Figure 1-4 A precise positioning and efficient cleaning device for ultrasonic acid pickling of bolt fasteners is disclosed, comprising a device body 1. A mounting frame 2 is mounted on the top surface of the device body 1. An electric push rod 4 is vertically mounted on the top surface of the mounting frame 2. A connecting frame 5 is provided through the output end of the electric push rod 4 on the surface of the mounting frame 2. A fixing frame 9 is provided at the bottom end of the connecting frame 5. A positioning hole 13 is provided through the bottom end of the fixing frame 9. The inner diameter of the positioning hole 13 is larger than the outer diameter of the threaded post of the bolt fastener but smaller than the outer diameter of the top limiting cap. By setting the mounting frame 2, electric push rod 4, connecting frame 5, and fixing frame 9 with positioning hole 13 on the top of the device body 1, a precise positioning mechanism is formed. The special diameter design of the positioning hole 13 allows the bolt fasteners to be quickly and accurately fixed, completely solving the problem of bolts being difficult to position in the cleaning tank and prone to collision and entanglement in traditional cleaning devices. This not only protects the surface quality of the bolts and reduces defects such as scratches and dents caused by collisions, but also ensures that ultrasonic energy is applied evenly to the bolt surface, improving the consistency of the cleaning effect and providing high-quality bolt fasteners for subsequent production and processing.
[0026] The working principle of the precise positioning and efficient cleaning device for ultrasonic acid pickling of bolt fasteners provided by this utility model is as follows:
[0027] When this ultrasonic acid pickling device for bolts and fasteners is in operation, the bolts and fasteners to be cleaned are first placed in the positioning holes 13 of the fixed frame 9. Due to the size design of the positioning holes 13, the threaded post of the bolt or fastener can be smoothly inserted into the positioning holes 13, while the top limiting cap is blocked outside the positioning holes 13, thereby achieving precise positioning of the bolts and fasteners.
[0028] Subsequently, the electric push rod 4 is activated by the controller 3. The output end of the electric push rod 4 pushes the connecting frame 5 and the fixing frame 9 downward, slowly immersing the bolts and fasteners into the cleaning fluid inside the device body 1. At this time, the ultrasonic generator 10 installed at the bottom of the device body 1 starts to work, emitting high-frequency vibrating ultrasonic waves. The ultrasonic waves propagate in the cleaning fluid, generating a cavitation effect, which impacts and peels off impurities such as oil and rust on the surface of the bolts and fasteners.
[0029] At the same time, the drive motor 8 at the bottom of the device body 1 starts, and the output of the drive motor 8 drives the mounting plate 12 and the stirring rod 11 to rotate. The stirring rod 11 stirs in the cleaning solution, causing the cleaning solution to flow evenly in the tank, so that the cleaning solution can be refreshed in time and fully contact all parts of the bolt fasteners, further enhancing the cleaning effect.
[0030] After cleaning, the electric push rod 4, ultrasonic generator 10, and drive motor 8 are shut off via controller 3. The electric push rod 4 is then restarted to lift the fixing frame 9 and bolt fasteners out of the cleaning solution. Finally, the valve on the drain pipe 6 is opened to drain the dirty cleaning solution from the device body 1, completing one cleaning cycle. The entire process is convenient to operate, and through the coordinated work of all components, precise positioning and efficient cleaning of bolt fasteners are achieved.
[0031] Compared with related technologies, the precise positioning and efficient cleaning device for ultrasonic acid pickling of bolt fasteners provided by this utility model has the following advantages:
[0032] By creating a positioning hole 13 inside the fixed frame 9, with the inner diameter of the positioning hole 13 being larger than the outer diameter of the threaded post of the bolt fastener but smaller than the outer diameter of the top limiting cap, precise positioning of the bolt fastener can be achieved. During ultrasonic pickling, the bolt fastener is firmly confined within the positioning hole 13, preventing collisions and entanglement caused by ultrasonic waves in the cleaning tank. This effectively protects the bolt surface from damage, ensuring the quality of the cleaned bolts meets standards, and also improves the uniformity and stability of the cleaning effect. The drive motor 8 mounted on the bottom surface of the device body 1 drives the mounting plate 12 and the stirring rod 11 to rotate, stirring the cleaning solution. This stirring method makes the flow of the cleaning solution in the tank more uniform, avoiding the problem of untimely cleaning solution replenishment in some areas. The uniformly flowing cleaning solution can fully contact the surface of the bolt fastener, accelerating the dissolution and removal of impurities such as oil and rust, significantly improving cleaning efficiency and meeting the demand for high-efficiency cleaning in large-scale production.
[0033] Second Embodiment
[0034] Please refer to the following: Figure 1-4Based on the precise positioning and efficient cleaning device for ultrasonic acid pickling of bolt fasteners provided in the first embodiment of this application, the second embodiment of this application proposes another precise positioning and efficient cleaning device for ultrasonic acid pickling of bolt fasteners. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.
[0035] Based on Example 1, see [link / reference] Figure 1-4 A drive motor 8 is mounted on the bottom surface of the device body 1. An installation plate 12 is mounted on the bottom surface of the device body 1 through the output end of the drive motor 8. A stirring rod 11 is mounted on the installation plate 12. The drive motor 8, installation plate 12, and stirring rod 11 at the bottom of the device body 1 constitute a stirring system. During the cleaning process, the drive motor 8 drives the stirring rod 11 to rotate, causing the cleaning solution to flow stably and evenly within the tank. This uniform flow effectively avoids situations where the local concentration of the cleaning solution is too high or too low, allowing acidic components and dissolved impurities in the cleaning solution to diffuse and renew in a timely manner. This ensures that each bolt fastener can be cleaned in a sufficient and effective cleaning solution environment, significantly improving cleaning efficiency and meeting the stringent requirements for cleaning efficiency in large-scale production.
[0036] Based on Example 1, see [link / reference] Figure 1-4 An ultrasonic generator 10 is installed at the bottom of the device body 1. This ultrasonic generator 10 can generate high-frequency ultrasonic waves. When the ultrasonic waves propagate in the cleaning fluid, they produce a cavitation effect, forming countless tiny bubbles on the surface of the bolt fasteners. The powerful impact force generated when these bubbles burst can penetrate deep into the threads, gaps, and other complex structural parts of the bolts, thoroughly removing stubborn oil stains, rust, and other impurities. This greatly enhances the depth and thoroughness of the cleaning, achieving a cleaning effect that is difficult to achieve with traditional cleaning methods.
[0037] Based on Example 1, see [link / reference] Figure 1-4 The positioning holes 13 are provided in multiples, and the multiple positioning holes 13 are equally spaced inside the fixing frame 9. The multiple positioning holes 13 equally spaced inside the fixing frame 9 increase the number of bolts that can be cleaned at one time, thereby improving the working efficiency of the cleaning device. On the other hand, the equally spaced design ensures that each bolt can obtain a relatively independent and uniform cleaning environment during the cleaning process, avoiding cleaning blind spots and mutual interference caused by densely placed bolts, and further improving the uniformity and reliability of the cleaning effect.
[0038] Based on Example 1, see [link / reference] Figure 1-4A drain pipe 6 is installed through the lower outer surface of the device body 1, and a valve is installed on the drain pipe 6. The design of the drain pipe 6 and valve on the outer side of the device body 1 allows the dirty cleaning solution to be discharged quickly and conveniently after cleaning. By controlling the valve opening and closing, the draining process can be precisely controlled, facilitating timely replacement of the cleaning solution, maintaining the cleanliness and effectiveness of the cleaning solution, preparing for the next cleaning operation, and ensuring the stability and continuity of cleaning quality.
[0039] Based on Example 1, see [link / reference] Figure 1-4 The device body 1 has multiple support legs 7 at its bottom, which are equidistantly installed at the four corners of the bottom of the device body 1. These support legs provide a stable support structure for the device. During the cleaning process, especially under ultrasonic vibration and agitation by the stirring rod 11, the support legs 7 ensure stable placement of the device, preventing displacement and shaking caused by vibration, ensuring safe and reliable cleaning, and extending the service life of the device.
[0040] Based on Example 1, see [link / reference] Figure 1-4 A controller 3 is mounted on the outer surface of the device body 1. This controller 3 integrates control functions for key components such as the electric push rod 4, the ultrasonic generator 10, and the drive motor 8. Operators can use the controller 3 to start, stop, or adjust the working status of each component with a single button, achieving automated and intelligent control of the entire cleaning process. This not only reduces the complexity and labor intensity of manual operation but also further optimizes the cleaning process and improves cleaning effect and work efficiency by precisely controlling parameters such as cleaning time and stirring speed. The control circuit of the control panel can be easily programmed by those skilled in the art and is common knowledge in the field. Therefore, the control method and circuit connection will not be described in detail here, as this is only for use and not for modification.
[0041] It should be noted that all components used in this application are standard parts that can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets and welding that are mature in the prior art. The mechanical parts and electrical equipment adopt conventional models in the prior art. The circuit connection adopts conventional connection methods in the prior art. The electrical equipment is connected to an external safe power source. These will not be described in detail here.
[0042] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A precise positioning and efficient cleaning device for ultrasonic pickling of bolt fasteners, comprising a device body (1), characterized in that, The device body (1) has a mounting bracket (2) installed on its top surface. An electric push rod (4) is vertically installed on the top surface of the mounting bracket (2). The output end of the electric push rod (4) passes through the surface of the mounting bracket (2) and is provided with a connecting bracket (5). A fixing frame (9) is provided at the bottom end of the connecting bracket (5). A positioning hole (13) is provided through the bottom end of the fixing frame (9). The inner diameter of the positioning hole (13) is larger than the outer diameter of the threaded column of the bolt fastener and smaller than the outer diameter of the top limit cover.
2. The precision positioning and efficient cleaning device for ultrasonic pickling of a bolt fastener according to claim 1, characterized in that, A drive motor (8) is installed on the bottom surface of the device body (1). The output end of the drive motor (8) passes through the bottom surface of the device body (1) and is provided with a mounting plate (12). A stirring rod (11) is installed on the mounting plate (12).
3. The precision positioning and efficient cleaning device for ultrasonic pickling of a bolt fastener according to claim 1, characterized in that, An ultrasonic generator (10) is installed at the bottom of the device body (1).
4. The precision positioning and efficient cleaning device for ultrasonic pickling of a bolt fastener according to claim 1, characterized in that, The positioning holes (13) are provided in multiple ways, and the multiple positioning holes (13) are equally spaced inside the fixed frame (9).
5. The precision positioning and efficient cleaning device for ultrasonic pickling of bolt fasteners according to claim 1, characterized in that, A drain pipe (6) is installed through the lower outer surface of the device body (1), and a valve is installed on the drain pipe (6).
6. The precision positioning and efficient cleaning device for ultrasonic pickling of a bolt fastener according to claim 1, characterized in that, The device body (1) is provided with a support leg (7) at the bottom end, and there are multiple support legs (7), and the multiple support legs (7) are installed at the four corners of the bottom end of the device body (1) at equal distances.
7. The precision positioning and efficient cleaning device for ultrasonic pickling of bolt fasteners according to claim 1, characterized in that, A controller (3) is mounted on the outer surface of the device body (1).