Electrohydraulic steering engine part cleaning device

Abstract

The electro-hydraulic steering engine part cleaning device is used in cooperation with an automatic cleaning system and comprises a cleaning frame and a cleaning assembly, the cleaning assembly comprises a cleaning plate and a supporting base, and the cleaning plate is a polytetrafluoroethylene cleaning plate; a gripper matched with a mechanical arm of the automatic cleaning system is arranged on the periphery of the cleaning frame. The cleaning plate is provided with a plurality of limiting holes used for installing cleaning objects. The cleaning plate is detachably connected with the supporting seats, and the cleaning plate can be connected with the supporting seats with different heights; or the supporting seat is of a telescopic structure, so that the distance between the cleaning plate and the bottom of the cleaning frame is changed. Both the connecting rod and the piston have good stability in the cleaning process, and the surface of a part is prevented from being scratched, bruised and the like in the cleaning process. In the cleaning process, the surfaces of the parts are effectively protected, the percent of pass of the parts is increased, automatic and efficient cleaning operation is achieved, and the cleaning efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the field of cleaning of electro-hydraulic steering gear parts, and in particular to a device for cleaning electro-hydraulic steering gear parts. Background Art

[0002] As one of the important components of the missile, the electro-hydraulic servo drives the product through aviation hydraulic oil as its working medium. The working performance of the servo directly affects the working performance of the missile. The connecting rod and piston are important components of the servo, which have an important impact on the sealing performance of the servo. Among them, the connecting rod is the actuator of the servo, which outputs the action after receiving the command; the piston is a component of the low-pressure safety valve and is a hydraulic protection element inside the servo oil tank. When the pressure in the low-pressure chamber exceeds the load, it will release the pressure in time to protect the product.

[0003] Sealing performance is one of the important indicators of electro-hydraulic steering gear. The connecting rod and piston are the dynamic sealing parts of the steering gear. If there are quality problems such as scratches or bumps on the working surface of the connecting rod or piston, the sealing ring and other seals that match the dynamic seal will be damaged, causing the sealing performance to decrease or even fail, which will bring serious hidden dangers to product quality, reduce the working accuracy and reliability of the product, and in severe cases, cause the product to lose its working function.

[0004] For parts with high surface finish requirements in electro-hydraulic servos, in order to ensure assembly quality and control excess materials, the connecting rod and piston need to be cleaned before assembly. The existing cleaning methods are as follows:

[0005] 1) The connecting rod in the electro-hydraulic steering gear is cleaned with a small ultrasonic cleaning machine (10L) filled with gasoline. During cleaning, the connecting rod is placed at an angle on the side of the cleaning tank filled with gasoline. The spacing is small and there is no positioning method. Due to the high surface finish requirements of the connecting rod, there is no effective way to fix it and water-based cleaning is not possible. Therefore, a small ultrasonic cleaning machine can only be used for easy placement.

[0006] 2) The piston in the electro-hydraulic servo is cleaned using an automated cleaning system. During cleaning, the piston is placed directly in the cleaning frame for water-based cleaning.

[0007] However, currently, there are no other effective and efficient protective cleaning methods except the above-mentioned cleaning methods. Under the situation of increasing product output, the existing cleaning methods are not conducive to improving production efficiency and capacity. Since the connecting rod cannot be placed stably, it can only be tilted at a certain angle to lean against the four sides of the cleaning tank. In order to prevent the connecting rod from being damaged, it takes a lot of time to place the connecting rod. Even so, it is easy to roll and cause scratches and bruises on the working surface during the placement and cleaning processes; the connecting rod is placed at an angle and cannot be completely immersed in gasoline. After cleaning, the uncleaned parts need to be cleaned manually, which greatly reduces the cleaning efficiency; the ultrasonic cleaning machine has a small volume and can only clean about 10 connecting rods at a time, and the cleaning efficiency is low; in addition, there are safety hazards when using gasoline to clean the connecting rod; the piston is directly placed in the cleaning frame. Due to the unlimited position protection between the pistons, when the cleaning system robot arm operates the cleaning frame, the piston has the quality hazard of sliding and bruising; at the same time, in order to ensure the spacing, the operator needs to spend a lot of energy to choose the placement position, which affects the efficiency; there are scratches and bruises on the connecting rod and piston during each batch of cleaning, and the parts need to be reworked or even scrapped, which makes the cost high.

[0008] Therefore, it is urgent to provide a cleaning device that can be used for electro-hydraulic steering gear parts to avoid external damage to the parts that affects the brightness during the cleaning process, while protecting the parts to the greatest extent, improving the cleaning efficiency and reducing the production cost. Summary of the invention

[0009] In order to solve the problem of excessive damage to high-gloss parts in the electro-hydraulic steering gear during cleaning, realize automatic cleaning, improve cleaning efficiency and high cost, the present invention provides an electro-hydraulic steering gear parts cleaning device, which is used in conjunction with an automatic cleaning system, comprising:

[0010] A cleaning frame and a cleaning assembly placed in the cleaning frame, wherein the cleaning assembly comprises a cleaning plate and a support seat fixedly connected to the cleaning plate and used to support the cleaning plate, wherein the cleaning plate is a polytetrafluoroethylene cleaning plate;

[0011] The outer periphery of the cleaning frame is provided with a gripper that cooperates with the mechanical arm of the automated cleaning system; the cleaning plate is provided with a plurality of limiting holes in a through-hole structure for mounting and limiting the cleaning object;

[0012] The cleaning plate is detachably connected to the support seat, and the cleaning plate can be connected to the support seats at different heights; or, the support seat is a support seat with a telescopic structure to change the distance between the cleaning plate and the bottom of the cleaning frame.

[0013] In some embodiments, a positioning component is provided on the cleaning component, and a limiting member cooperating with the positioning component and fixing the cleaning component relative to the cleaning frame is provided on the cleaning frame.

[0014] In some embodiments, the cleaning assembly includes a connecting rod cleaning assembly and a piston cleaning assembly, the connecting rod cleaning assembly includes a connecting rod cleaning plate and a connecting rod support seat, the piston cleaning assembly includes a piston cleaning plate and a piston support seat, and the height of the connecting rod support seat is greater than the height of the piston support seat.

[0015] In some embodiments, a connecting rod limiting hole is provided on the connecting rod cleaning plate, and the connecting rod limiting hole is configured as a through hole structure or a countersunk hole structure;

[0016] The piston cleaning plate is provided with a piston limiting hole, and the piston limiting hole is configured as a through hole structure.

[0017] In some embodiments, the connecting rod cleaning plate and the piston cleaning plate are respectively provided with connecting rod fixing holes and piston fixing holes, and the connecting rod support seat and the piston support seat are respectively provided with connecting rod mounting holes and piston mounting holes that cooperate with the connecting rod fixing holes and the piston fixing holes, and the cleaning plate and the support seat are fixedly connected by bolts.

[0018] In some embodiments, the connecting rod support seat has the same structure as the piston support seat, and the connecting rod support seat is a multi-section telescopic structure to accommodate cleaning objects of different heights.

[0019] In some embodiments, the surface roughness of the connecting rod cleaning plate and the piston cleaning plate is set to 0.7 μm-0.8 μm, and the surface roughness of the inner walls of the connecting rod limiting hole and the piston limiting hole is set to 0.5 μm-0.7 μm.

[0020] In some embodiments, the connecting rod cleaning plate and the piston cleaning plate are respectively provided with a connecting rod handhold and a piston handhold, and the connecting rod handhold and the piston handhold are provided with positioning components for limiting and fixing the cleaning assembly and the cleaning frame.

[0021] In some embodiments, the upper surface roughness of the cleaning plate is set to 0.7 μm-0.8 μm, and the surface roughness of the inner wall of the limiting hole is set to 0.5 μm-0.7 μm.

[0022] In some embodiments, the cleaning plate is configured as a rectangular structure, and the limiting holes are evenly distributed on the cleaning plate.

[0023] The electro-hydraulic steering gear parts cleaning device provided by the present invention is used in conjunction with an automated cleaning system, wherein a cleaning component is built into the cleaning frame, and the cleaning object is supported and limited by a cleaning plate and a support seat, so that both the connecting rod and the piston have good stability during the cleaning process, and there is an appropriate gap between each part, thereby avoiding scratches and bumps on the surface of the parts during the cleaning process. The cleaning plate and the support seat are set to be detachably connected, or the support seat is set to be a support seat with a telescopic structure, both of which achieve the effect of adjusting the distance between the cleaning plate and the bottom of the cleaning frame. Therefore, when facing cleaning objects of different sizes, the cleaning operation can be completed by matching the cleaning plate with support seats of different heights, thereby more reasonably and quantitatively utilizing the cleaning liquid, realizing effective utilization of resources, and reducing production costs to a certain extent.

[0024] In addition, after the parts are inserted into the cleaning plate, since the polytetrafluoroethylene cleaning plate has a certain degree of softness and a higher brightness, the surface of the cleaning plate and the inner wall of the limiting hole also have a higher brightness, which can further protect the surface of the parts during the cleaning process and improve the qualified rate of the parts. When the cleaning frame and the cleaning assembly are used together, the cleaning device of the present application can cooperate with the automatic cleaning system to realize automatic and efficient cleaning operations. During cleaning, the robot arm can directly place the cleaning frame to the preset position for cleaning work, which greatly improves the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic structural diagram of a connecting rod cleaning device according to an embodiment is shown;

[0026] Figure 2 Shows Figure 1 Bottom view of

[0027] Figure 3 Shows Figure 1 Left view of;

[0028] Figure 4 A schematic structural diagram of a cleaning plate in a connecting rod cleaning device according to an embodiment is shown;

[0029] Figure 5 Shows Figure 4 Middle AA section view;

[0030] Figure 6 A schematic structural diagram of a support seat in a connecting rod cleaning device according to an embodiment is shown;

[0031] Figure 7 Shows Figure 6 The local cross-sectional structure of

[0032] Figure 8A schematic structural diagram of a cleaning plate in a connecting rod cleaning device according to another embodiment is shown;

[0033] Fig. 9 Shows Figure 8 Middle BB section view;

[0034] Fig.10 A schematic structural diagram of a piston cleaning device according to an embodiment is shown;

[0035] Fig.11 Shows Fig.10 Bottom view of

[0036] Fig.12 Shows Fig.10 Left view of;

[0037] Fig.13 A schematic structural diagram of a cleaning plate in a piston cleaning device according to an embodiment is shown;

[0038] Fig.14 Shows Fig.13 Middle CC section view;

[0039] Fig.15 A schematic structural diagram of a support seat in a piston cleaning device according to an embodiment is shown;

[0040] Fig.16 Shows Fig.15 sectional view of .

[0041] Reference numerals:

[0042] 10 is a connecting rod cleaning assembly, 11 is a connecting rod cleaning plate, 111 is a connecting rod limiting hole, 112 is a connecting rod hand-held portion, 113 is a connecting rod fixing hole, 12 is a connecting rod supporting seat, and 121 is a connecting rod mounting hole;

[0043] 20 is a piston cleaning assembly, 21 is a piston cleaning plate, 211 is a piston limiting hole, 212 is a piston hand-held portion, 213 is a piston fixing hole, 22 is a piston support seat, and 221 is a piston mounting hole. DETAILED DESCRIPTION

[0044] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, rather than implying any limitation on the scope of the present disclosure.

[0045] As used herein, the term "including" and its variants are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "based at least in part on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like is based on the orientation or position relationship shown in the accompanying drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to being used to indicate an orientation or position relationship, some of the above terms may also be used to indicate other meanings, such as the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances. In addition, the terms "install", "set", "provided with", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0046] See also Figures 1 to 16, which is a partial structural schematic diagram of the electro-hydraulic steering gear parts cleaning device provided by the present application, and in combination with the accompanying drawings, the cleaning device of the present application is specifically described. The cleaning device of the present application can be used in conjunction with an automated cleaning system to achieve automatic cleaning, thereby improving the cleaning efficiency. The cleaning device mainly includes a cleaning frame (not shown) and a cleaning component placed in the cleaning frame, and the cleaning component includes a cleaning plate and a support seat fixedly connected to the cleaning plate for supporting the cleaning plate. The cleaning plate in the present application is preferably a polytetrafluoroethylene cleaning plate, so as to obtain a cleaning plate with higher surface brightness through processing, so as to avoid scratches on the cleaning object during the cleaning process, and at the same time, its softness is relatively high, and the soft contact can effectively protect the high brightness requirements of the appearance of the parts, and avoid hard collisions. Therefore, it can play a certain protective and buffering role on the cleaning object during the cleaning process, and further ensure that the qualified rate of the parts after cleaning will not be damaged. In addition, by designing a support seat, while ensuring that the cleaning component is stably supported, the bottom space of the cleaning component and the cleaning frame ensures the reliability and suspension of the parts placement, ensures that all parts of the parts can be fully ultrasonically cleaned, and completes the cleaning at one time, avoids repeatedly flipping the direction of the parts, and improves the quality and efficiency of ultrasonic cleaning of the parts.

[0047] The outer periphery of the above-mentioned cleaning frame is provided with a gripper that cooperates with the mechanical arm of the automated cleaning system, so that in the automated cleaning system, the cleaning device can efficiently complete the grabbing, placing and cleaning operations under the action of the mechanical arm. A plurality of limiting holes in a through-hole structure for installing and limiting the cleaning object are provided on the cleaning board. After the cleaning object is placed in the corresponding limiting hole, the cleaning board is placed in the cleaning frame, or the cleaning board is first placed in the cleaning frame, and then the cleaning object is placed in the limiting hole. The two placement orders are not restricted. After that, the mechanical arm grabs the placed cleaning device and sends the cleaning device to an appropriate position for cleaning. After the cleaning is completed, the mechanical arm takes away the cleaning device and puts in a new one to be cleaned again. The above-mentioned limiting holes are kept at a distance, and the parts are separated by mutual limiting, which avoids the mutual collision and rolling of the parts during the automated cleaning process, thereby ensuring the stability of the parts. The number of limiting holes that can be set on a single cleaning board is also relatively large. In this application, at least 60 limiting holes are set on the cleaning board, and at least 60 parts can be cleaned at the same time, realizing batch cleaning, ensuring the cleaning quality, and improving the cleaning efficiency by more than 5 times.

[0048] Since the cleaning object is a high-gloss part, the upper surface roughness of the cleaning plate is set to 0.7μm-0.8μm, and the surface roughness of the inner wall of the limiting hole is set to 0.5μm-0.7μm. During the cleaning process, the outer surface of the part contacts the inner wall of the hole, and the glossiness of the outer surface of the part is high, and higher sealing is required after matching. Therefore, the roughness of the inner wall of the limiting hole is set to be smaller than the surface roughness of the cleaning plate. The smaller the roughness of the cleaning plate, the better it can protect the processing parameters of the part surface to still meet the matching requirements after cleaning, thereby avoiding damage and scrapping of parts caused by cleaning.

[0049] As a preferred embodiment, the cleaning plate and the support seat in the present application are configured to be detachably connected, or the support seat is a support seat with a telescopic structure. This configuration can achieve the change in height between the cleaning plate and the bottom of the cleaning frame, that is, the cleaning device can adapt to cleaning objects of different sizes. When the cleaning plate and the support seat are configured to be detachably connected, the cleaning plate can be connected to support seats of different heights according to the height of the object to be cleaned. On the one hand, the reliability and suspension of the part placement are guaranteed, and scratches caused by collision between the cleaning object and the bottom of the cleaning frame can be avoided, ensuring that the surface of the cleaning object meets the high gloss requirements. On the other hand, the height of the cleaning liquid that needs to be added during cleaning will also change accordingly according to different heights, ensuring that all parts of the part can be fully ultrasonically cleaned, and the cleaning can be completed at one time, avoiding repeated flipping of the direction of the part, and improving the quality and efficiency of ultrasonic cleaning of the part, thereby further saving resources and reducing cleaning costs.

[0050] In a specific embodiment, a positioning component is provided on the cleaning component, and a stopper is provided on the cleaning frame to cooperate with the positioning component to fix the cleaning component relative to the cleaning frame. After the cleaning component is placed in the cleaning frame, the positioning component cooperates with the stopper to achieve a relatively fixed state between the cleaning component and the cleaning frame, thereby avoiding the possibility of potential scratches and bruises on the cleaning object caused by the shaking of the cleaning component during the cleaning process, and further ensuring that the cleaned parts still meet the high gloss requirements of the assembly.

[0051] In an electro-hydraulic steering gear, the connecting rod and the piston are important components on the steering gear, which have an important impact on the sealing performance of the steering gear, and both need to be cleaned before use. Therefore, in a specific embodiment of the present application, the cleaning assembly includes a connecting rod cleaning assembly 10 and a piston cleaning assembly 20, and the connecting rod cleaning assembly 10 includes a connecting rod cleaning plate 11 and a connecting rod support seat 12, such as Figures 1 to 9 The piston cleaning assembly 20 includes a piston cleaning plate 21 and a piston support seat 22, as shown Figures 10 to 16 As the connecting rod is longer than the piston, the height of the connecting rod support seat 12 is set to be greater than the height of the piston support seat 22 to avoid scratches caused by collision between the parts and the cleaning frame or other planes when the connecting rod and the piston are placed.

[0052] Specifically, Figures 1 to 7 , showing a schematic diagram of the structure of a connecting rod cleaning device of the present application, combined with Figures 4 to 5 As shown, the connecting rod limiting hole 111 provided on the connecting rod cleaning plate 11 is a countersunk hole structure, which is divided into a countersunk hole part and a through hole part. Figure 5 The cross-sectional structure of the countersunk hole portion can be Figure 5 The rectangular structure in the figure may also be an inverted trapezoidal structure. Specifically, the structure and size of the connecting rod limiting hole 111 may be designed according to the structure and size of the connecting rod. Figures 8 to 9 , showing a schematic diagram of the connecting rod limiting hole 111 being a through hole structure.

[0053] The connecting rod cleaning plate 11 is also provided with a connecting rod fixing hole 113, and the connecting rod supporting seat 12 is provided with a connecting rod mounting hole 121 which cooperates with the connecting rod fixing hole 113. Preferably, the connecting rod fixing hole 113 is a through hole, and the connecting rod mounting hole 121 is a blind hole. Figure 1 , Figures 4 to 9 As shown, the connecting rod cleaning plate 11 and the connecting rod support seat 12 are fixedly connected by bolts. The connecting rod fixing holes 113 are preferably arranged on the outside of the two opposite ends of the connecting rod cleaning plate 11. Of course, when the size of the connecting rod cleaning plate 11 is large, in order to avoid the middle of the connecting rod cleaning plate 11 from being pressed down and deformed after the parts are placed, the connecting rod support seat 11 can also be fixedly installed in the middle position of the connecting rod cleaning plate 11. That is, according to the different sizes of the connecting rod cleaning plate 11, at least two connecting rod support seats 12 can be set for support and fixation.

[0054] Since the brightness of the connecting rod is very high, the brightness requirement for the cleaning device is also relatively high. In the present application, the surface roughness of the connecting rod cleaning plate 11 is set to 0.7μm-0.8μm, and the surface roughness of the inner wall of the connecting rod limiting hole 111 is set to 0.5μm-0.7μm. The roughness of the inner wall of the connecting rod limiting hole 111 is smaller than the surface roughness of the connecting rod cleaning plate 11. This is because during the cleaning process, the outer peripheral surface of the connecting rod is in contact with the inner wall of the hole, and the brightness of the outer peripheral surface is high, and higher sealing is required after matching. Smaller roughness can better protect the processing parameters of the part surface and still meet the matching requirements after cleaning. Preferably, the surface roughness of the connecting rod cleaning plate 11 is set to 0.7μm, and the surface roughness of the inner wall of the connecting rod limiting hole 111 is set to 0.5μm.

[0055] refer to Figures 10 to 16 , showing a schematic diagram of the structure of a piston cleaning device of the present application, combined with Figure 13 to Figure 14 As shown, a piston limiting hole 211 is provided on the piston cleaning plate 21, and the piston limiting hole 211 is configured as a through hole structure.

[0056] The piston cleaning plate 21 is also provided with a piston fixing hole 213, and the piston support seat 22 is provided with a piston mounting hole 221 that matches the piston fixing hole 213. Preferably, the piston fixing hole 213 is a through hole, and the piston mounting hole 221 is a blind hole. Fig.10 , Figures 13 to 16 As shown, the piston cleaning plate 21 and the piston support seat 22 are fixedly connected by bolts. The piston fixing hole 213 is preferably arranged on the outside of the two opposite ends of the piston cleaning plate 21. Of course, when the size of the piston cleaning plate 21 is large, in order to avoid the middle of the piston cleaning plate 21 from being pressed down and deformed after the parts are placed, the piston support seat 21 can also be fixedly installed in the middle position of the piston cleaning plate 21. That is, according to the different sizes of the piston cleaning plate 21, at least two piston support seats 22 can be set for support and fixation. In addition, the connection method between the cleaning plate and the support seat is not limited to bolt connection, and other methods that can achieve effective connection, such as pin connection and clamping, are all feasible.

[0057] Like the connecting rod, the luminosity requirement of the piston is also very high. Therefore, the luminosity requirement for the cleaning device is also relatively high. In the present application, the surface roughness of the piston cleaning plate 21 is set to 0.7μm-0.8μm, and the surface roughness of the inner wall of the piston limit hole 211 is set to 0.5μm-0.7μm. Similarly, since the outer peripheral surface of the piston contacts the inner wall of the hole during the cleaning process, and the luminosity requirement of the outer peripheral surface is high, and a higher sealing performance is required after matching, the roughness of the inner wall of the piston limit hole 211 is set to be smaller than the surface roughness of the piston cleaning plate 21. The smaller the roughness of the cleaning plate, the better it can protect the processing parameters of the part surface to still meet the matching requirements after cleaning. Preferably, the surface roughness of the piston cleaning plate 21 is set to 0.7μm, and the surface roughness of the inner wall of the piston limit hole 211 is set to 0.5μm.

[0058] In one embodiment of the present application, a cleaning plate with different limiting hole sizes and structures can be set according to different cleaning objects, and the connecting rod support seat 12 and the piston support seat 22 can be set to the same structure, that is, both can be fixedly connected to different cleaning plates to achieve a supporting effect. In this setting, the support seat is set to a multi-section telescopic structure, such as a three-section telescopic structure. In the retracted state, the support seat has a minimum height and can adapt to the piston or parts with a smaller length, and under different stretched lengths, it can adapt to parts of corresponding lengths. At this time, while ensuring that the height of the cleaning liquid can completely immerse the parts and fully clean the parts, it can also ensure that the minimum amount of cleaning liquid is used, which saves energy consumption to a certain extent and reduces cleaning costs.

[0059] The connecting rod cleaning plate 11 and the piston cleaning plate 21 are respectively provided with a connecting rod handle 112 and a piston handle 212. Figure 1 and Fig.10 As shown, during use, after the parts are placed in the limiting holes, the staff holds the connecting rod handheld part 112 or the piston handheld part 212 to place the cleaning plate into the cleaning frame, making the cleaning assembly lighter, simpler, and easier to take and put, greatly improving the ease of use, and being able to place and take the cleaning plate more smoothly, avoiding damage to the parts caused by collision during the placement and taking process. As a preferred embodiment, a positioning component for limiting and fixing the cleaning assembly and the cleaning frame is provided on the connecting rod handheld part 112 and the piston handheld part 212. For example, an adjustable fixing belt is provided; or a card slot is provided on the connecting rod handheld part 112 and the piston handheld part 212, and a buckle is provided on the cleaning frame to achieve a snap-fit ​​fit, and the specific fixing method is not limited. In addition, the specific positions of the positioning component and the limiting member on the cleaning assembly and the cleaning frame are not limited here, and the two can cooperate to fix the relative position of the cleaning assembly and the cleaning frame and ensure that the cleaning process is stable and efficient. In addition, the connecting rod handheld part 112 and the piston handheld part 212 can be set as follows Figure 5 , Fig. 9 and Fig.14 The opening structure that passes through the cleaning plate is shown, and the staff can grab the cleaning plate from the opening structure; it can also be set as a structure protruding from the cleaning plate or the support seat, and its specific structure is optimal to achieve convenient grabbing and stable placement.

[0060] In the present application, the cleaning plate is preferably configured as a rectangular structure that matches the cleaning frame, and the limiting holes are evenly distributed on the cleaning plate. Figure 1 , Figure 8 and Fig.10 The limit holes are basically evenly distributed, which can better control the spacing between parts and avoid collisions, and can better utilize the space on the cleaning plate. The number of parts cleaned each time is greatly increased, which improves the cleaning efficiency.

[0061] The electro-hydraulic servo parts cleaning device provided in the embodiment of the present application is used in conjunction with an automated cleaning system. A cleaning component is built into the cleaning frame, and the cleaning object is supported and limited by a cleaning plate and a support seat, so that both the connecting rod and the piston have good stability during the cleaning process, and there is an appropriate gap between each part, thereby avoiding scratches and bumps on the surface of the parts during the cleaning process. The cleaning plate and the support seat are set to be detachably connected, or the support seat is set to a support seat of a telescopic structure, which achieves the effect of adjusting the distance between the cleaning plate and the bottom of the cleaning frame. Therefore, when facing cleaning objects of different sizes, the cleaning operation can be completed by matching the cleaning plate with support seats of different heights, thereby more reasonably and quantitatively utilizing the cleaning liquid, realizing the effective utilization of resources, and reducing production costs to a certain extent. The cleaning component of the present application has strong versatility and compatibility, can be applied to parts of different models and similar structures, has good promotion and application, can be mass-produced and realizes mass cleaning.

[0062] In addition, after the parts are inserted into the cleaning plate, since the polytetrafluoroethylene cleaning plate has a certain degree of softness and a higher brightness, the surface of the cleaning plate and the inner wall of the limiting hole also have a higher brightness. During the cleaning process, the surface of the parts can be further protected, so that the appearance qualification rate is increased to 100%. When the cleaning frame and the cleaning component are used in conjunction, the cleaning device of the present application can cooperate with the automatic cleaning system to realize an automated and efficient cleaning operation. During cleaning, the robot arm can directly place the cleaning frame to a preset position for cleaning, which greatly improves the cleaning efficiency.

[0063] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present disclosure, and in actual applications, various changes may be made thereto in form and detail without departing from the scope of the present disclosure.

Claims

1. An electro-hydraulic steering gear parts cleaning device, used in conjunction with an automated cleaning system, characterized in that: include: A cleaning frame and a cleaning assembly placed in the cleaning frame, wherein the cleaning assembly comprises a cleaning plate and a support seat fixedly connected to the cleaning plate and used to support the cleaning plate, wherein the cleaning plate is a polytetrafluoroethylene cleaning plate; The outer periphery of the cleaning frame is provided with a gripper that cooperates with the mechanical arm of the automated cleaning system; the cleaning plate is provided with a plurality of limiting holes in a through-hole structure for mounting and limiting the cleaning object; The cleaning plate is detachably connected to the support seat, and the cleaning plate can be connected to the support seats at different heights; or, the support seat is a support seat with a telescopic structure to change the distance between the cleaning plate and the bottom of the cleaning frame.

2. The electro-hydraulic steering gear parts cleaning device according to claim 1, characterized in that: The cleaning component is provided with a positioning component, and the cleaning frame is provided with a limiting member that cooperates with the positioning component and fixes the cleaning component relative to the cleaning frame.

3. An electro-hydraulic steering gear parts cleaning device according to any one of claims 1 or 2, characterized in that: The cleaning assembly includes a connecting rod cleaning assembly and a piston cleaning assembly, the connecting rod cleaning assembly includes a connecting rod cleaning plate and a connecting rod support seat, the piston cleaning assembly includes a piston cleaning plate and a piston support seat, and the height of the connecting rod support seat is greater than the height of the piston support seat.

4. The electro-hydraulic steering gear parts cleaning device according to claim 3, characterized in that: The connecting rod cleaning plate is provided with a connecting rod limiting hole, and the connecting rod limiting hole is configured as a through hole structure or a countersunk hole structure; The piston cleaning plate is provided with a piston limiting hole, and the piston limiting hole is configured as a through hole structure.

5. The electro-hydraulic steering gear parts cleaning device according to claim 3, characterized in that: The connecting rod cleaning plate and the piston cleaning plate are respectively provided with connecting rod fixing holes and piston fixing holes, and the connecting rod support seat and the piston support seat are respectively provided with connecting rod mounting holes and piston mounting holes that cooperate with the connecting rod fixing holes and the piston fixing holes, and the cleaning plate and the support seat are fixedly connected by bolts.

6. The electro-hydraulic steering gear parts cleaning device according to claim 3, characterized in that: The connecting rod support seat has the same structure as the piston support seat, and the connecting rod support seat is a multi-section telescopic structure to adapt to cleaning objects of different heights.

7. The electro-hydraulic steering gear parts cleaning device according to claim 4, characterized in that: The surface roughness of the connecting rod cleaning plate and the piston cleaning plate is set to 0.7 μm-0.8 μm, and the surface roughness of the inner walls of the connecting rod limiting hole and the piston limiting hole is set to 0.5 μm-0.7 μm.

8. The electro-hydraulic steering gear parts cleaning device according to claim 3, characterized in that: The connecting rod cleaning plate and the piston cleaning plate are respectively provided with a connecting rod hand-holding part and a piston hand-holding part, and the connecting rod hand-holding part and the piston hand-holding part are provided with positioning components for limiting and fixing the cleaning assembly and the cleaning frame.

9. An electro-hydraulic steering gear parts cleaning device according to any one of claims 1 or 2, characterized in that: The upper surface roughness of the cleaning plate is set to 0.7 μm-0.8 μm, and the surface roughness of the inner wall of the limiting hole is set to 0.5 μm-0.7 μm.

10. An electro-hydraulic steering gear parts cleaning device according to any one of claims 1 or 2, characterized in that: The cleaning plate is configured as a rectangular structure, and the limiting holes are evenly distributed on the cleaning plate.

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