A piston ring mounting device and mounting method

Abstract

The application provides a piston ring mounting device and a mounting method, which comprise a piston ring supporting mechanism, a piston ring positioning mechanism and a piston loading mechanism; the piston ring supporting mechanism is used for placing at least one piston ring and supporting the opening of the at least one piston ring; the piston ring positioning mechanism is used for pressing the piston ring in the piston ring supporting mechanism and positioning the piston ring; the piston loading mechanism is located below the piston ring supporting mechanism, and is used for inserting a piston into the piston ring in the piston ring supporting mechanism; the piston ring supporting mechanism and the piston ring positioning mechanism release the piston ring, so that the piston ring is sleeved on the piston. The application achieves the technical effect that the piston ring is automatically mounted on the piston, improves the mounting efficiency of the piston ring, and further improves the production efficiency of the automobile.

Description

Technical Field

[0001] This application relates to the field of mechanical technology, and in particular to a piston ring mounting device and mounting method. Background Technology

[0002] With societal progress, competition in the automotive industry is becoming increasingly fierce. In order to improve production line efficiency, reduce labor costs, and avoid excessive manual labor intensity, companies are taking steps to meet the demands of this increasingly competitive environment.

[0003] However, the inventors discovered that the current method of installing piston rings in automobiles mainly relies on manually opening the opening on the piston ring and then placing the piston ring on the piston. This results in low installation efficiency and consequently reduces automobile production efficiency. Summary of the Invention

[0004] This application provides a piston ring installation device and installation method to solve the problem of low installation efficiency in current piston ring installation.

[0005] In a first aspect, this application provides a piston ring mounting device, comprising: a piston ring spreading mechanism, a piston ring positioning mechanism, and a piston loading mechanism;

[0006] The piston ring spreading mechanism is used to place at least one piston ring and spread at least one opening of the piston ring;

[0007] The piston ring positioning mechanism is used to squeeze the piston ring in the piston spreading mechanism and position the piston ring.

[0008] The piston loading mechanism is located below the piston ring spreading mechanism. The piston loading mechanism is used to insert a piston into the piston ring in the piston ring spreading mechanism. The piston ring spreading mechanism and the piston ring positioning mechanism release the piston ring so that the piston ring is fitted onto the piston.

[0009] In the above scheme, the piston ring opening mechanism includes: a support ring and two support claws;

[0010] The support ring is used to place at least one of the piston rings, and the support ring has a support notch that connects the upper surface and the lower surface of the support ring, the support notch corresponding to the opening of the piston ring;

[0011] The two support claws are located within the support notch, and the two support claws are used to open at least one of the piston rings.

[0012] In the above scheme, the piston ring opening mechanism further includes: a gripper cylinder;

[0013] The gripper cylinder is connected to the two support claws, and the gripper cylinder is used to control the two support claws to move in opposite directions and relative to each other.

[0014] In the above scheme, the piston ring opening mechanism further includes: a limiting ring;

[0015] The limiting ring is located above the support ring;

[0016] The inner diameter of the limiting ring is larger than the inner diameter of the support ring.

[0017] In the above scheme, the side of the limiting ring has a side opening;

[0018] The piston ring positioning mechanism includes: a positioning plate and a positioning cylinder;

[0019] The positioning plate passes through the side opening and contacts the piston ring on the support ring;

[0020] The positioning plate cooperates with the limiting ring to compress the piston ring, thereby positioning the piston ring on the support ring.

[0021] In the above scheme, the piston loading mechanism includes: a lifting plate and a lifting cylinder;

[0022] The lifting plate is located below the support ring and is used to support the piston;

[0023] The diameter of the lifting plate is smaller than the inner diameter of the support ring;

[0024] The lifting cylinder is connected to the bottom of the lifting plate;

[0025] The lifting cylinder is used to control the lifting plate to move the piston toward the support ring.

[0026] The above solution also includes: an upper support plate and a cylinder bracket;

[0027] The upper support plate has a first opening and a second opening;

[0028] The first port and the second port are respectively connected to the upper surface and the lower surface of the upper support plate, and the first port and the second port are interconnected.

[0029] The support ring and the limiting ring are fixed inside the first opening;

[0030] The positioning cylinder is fixed inside the second port, and the positioning plate is inserted from the second port into the limiting ring located inside the first port;

[0031] The cylinder bracket is fixed to the lower surface of the upper support plate and connected to the positioning cylinder.

[0032] The above solution also includes: a cover plate;

[0033] The cover plate is detachably connected to the upper surface of the upper support plate;

[0034] The cover plate covers the second opening and the side opening.

[0035] The above scheme also includes: a central support plate and at least one central support column;

[0036] The middle support plate is located below the first opening and the second opening;

[0037] The gripper cylinder is fixed to the middle support plate;

[0038] The lifting cylinder is fixed to the middle support plate;

[0039] The top of the middle support column is connected to the lower surface of the upper support plate;

[0040] The bottom end of the central support column is connected to the upper surface of the central support plate.

[0041] The above scheme also includes: a lower support plate and at least one lower support column;

[0042] The lower support plate is located below the middle support plate;

[0043] The top of the lower support column is connected to the lower surface of the upper support plate;

[0044] The bottom end of the lower support column is connected to the upper surface of the lower support plate.

[0045] Secondly, this application also provides a piston ring mounting method, using the above-mentioned piston ring mounting device, the method comprising:

[0046] Place at least one piston ring to be installed on the piston ring positioning mechanism.

[0047] Place a piston to be loaded onto the piston loading mechanism.

[0048] The control piston opening mechanism opens at least one of the pistons to be installed.

[0049] The piston loading mechanism is controlled to insert the piston to be loaded into the piston ring to be loaded.

[0050] The piston-opening mechanism is controlled to release the opening of the piston to be installed.

[0051] The piston loading mechanism is controlled to lift the piston to be loaded and the piston ring to be loaded, so that the piston ring to be loaded is disengaged from the piston ring positioning mechanism, and a loading piston is obtained; the loading piston is a piston with at least one piston ring installed.

[0052] This application provides a piston ring mounting device and mounting method, which expands the inner diameter of the piston ring by setting a piston ring opening mechanism to open at least one piston ring opening.

[0053] The piston rings in the piston opening mechanism are positioned by the piston ring positioning mechanism, which compresses the piston rings to facilitate the subsequent insertion of the piston into the opened piston rings. At the same time, the compression of the piston rings by the piston positioning mechanism provides support for the piston ring opening mechanism, making it easier for the piston ring opening mechanism to open the piston rings.

[0054] By inserting a piston into the piston ring spreading mechanism through a piston loading mechanism, the technical effect of automatically fitting the piston ring onto the piston and controlling the position of the piston ring is achieved.

[0055] By using a piston ring opening mechanism and a piston ring positioning mechanism to loosen the piston rings and allow them to fit onto the piston, the technology achieves the effect of automatically installing the piston rings onto the piston, improving the installation efficiency of the piston rings and thus improving the production efficiency of automobiles. Attached Figure Description

[0056] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0057] Figure 1 This application provides a schematic diagram of the structure of a piston ring mounting device;

[0058] Figure 2 A top view of a piston ring mounting device provided in this application;

[0059] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of section AA;

[0060] Figure 4 A flowchart illustrating a piston ring installation method provided in this application.

[0061] Figure label:

[0062] 1: Piston ring opening mechanism;

[0063] 2: Piston ring positioning mechanism;

[0064] 3: Piston loading mechanism;

[0065] 4: Upper support plate;

[0066] 5: Cylinder bracket;

[0067] 6: Cover plate;

[0068] 7: Middle support plate;

[0069] 8: Central support column;

[0070] 9: Lower support plate;

[0071] 10: Lower support column;

[0072] 11: Support ring;

[0073] 12: Supporting claws;

[0074] 13: Supporting the gap;

[0075] 14: Gripper cylinder;

[0076] 15: Limiting ring;

[0077] 16: Side opening;

[0078] 17: Limiting notch;

[0079] 21: Positioning plate;

[0080] 22: Positioning cylinder;

[0081] 31: Lifting plate;

[0082] 32: Lifting cylinder;

[0083] 41: First Exit;

[0084] 42: Second entrance.

[0085] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0086] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with those of this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the embodiments of this application as detailed in the appended claims.

[0087] The technical solutions of the embodiments of this application and how the technical solutions of the embodiments of this application solve the current problems are described in detail below with specific examples. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0088] Example 1:

[0089] Please see Figures 1-3 This application provides a piston ring mounting device, including: a piston ring spreading mechanism 1, a piston ring positioning mechanism 2, and a piston loading mechanism 3;

[0090] The piston ring opening mechanism 1 is used to place at least one piston ring and open the opening of at least one piston ring;

[0091] The piston ring positioning mechanism 2 is used to position the piston ring in the piston spreading mechanism.

[0092] The piston loading mechanism 3 is located below the piston ring opening mechanism 1. The piston loading mechanism 3 is used to insert a piston into the piston ring in the piston ring opening mechanism 1. The piston ring opening mechanism 1 and the piston ring positioning mechanism 2 release the piston ring so that the piston ring is fitted onto the piston.

[0093] In this example, the piston ring opening mechanism 1 is used to open the opening of at least one piston ring to enlarge the inner diameter of the piston ring.

[0094] The piston ring is positioned by the piston ring positioning mechanism 2 pressing the piston ring in the piston opening mechanism, so that the piston can be inserted into the opened piston ring later. At the same time, the pressing of the piston ring by the piston positioning mechanism provides support force to the piston ring opening mechanism 1, which is more conducive to the piston ring opening mechanism 1 opening the piston ring.

[0095] By inserting a piston into the piston ring in the piston ring spreading mechanism 1 through the piston loading mechanism 3, the technical effect of automatically putting the piston ring on the piston and controlling the position of the piston ring is achieved.

[0096] By using piston ring opening mechanism 1 and piston ring positioning mechanism 2 to loosen the piston ring, the piston ring is placed on the piston, achieving the technical effect of automatically installing the piston ring on the piston, which improves the installation efficiency of the piston ring and thus improves the production efficiency of automobiles.

[0097] In a preferred embodiment, the piston ring opening mechanism 1 includes: a support ring 11 and two support claws 12;

[0098] The support ring 11 is used to place at least one piston ring. The support ring 11 has a support notch 13 that connects the upper surface and the lower surface of the support ring 11. The support notch 13 corresponds to the opening of the piston ring.

[0099] Two support claws 12 are located within the support notch 13, and the two support claws 12 are used to open at least one piston ring.

[0100] In this example, a support ring 11 is set to support the piston ring; a support notch 13 is set and the opening of the piston ring is aligned with the support notch 13; and two support claws 12 are set to open the opening of the piston ring at the support notch 13, so as to achieve the technical effect of opening the inner diameter of the piston ring.

[0101] In a preferred embodiment, the piston ring opening mechanism 1 further includes: a gripper cylinder 14;

[0102] The gripper cylinder 14 is connected to two support claws 12, and the gripper cylinder 14 is used to control the two support claws 12 to move in opposite directions and relative to each other.

[0103] In this example, the movement direction of the support claw 12 is automatically controlled by the gripper cylinder 14, thereby achieving the technical effect of automatically opening the piston ring.

[0104] In a preferred embodiment, the piston ring opening mechanism 1 further includes: a limiting ring 15;

[0105] The limiting ring 15 is located above the support ring 11;

[0106] The inner diameter of the limiting ring 15 is larger than the inner diameter of the support ring 11.

[0107] In this example, a limiting ring 15 is set to limit the extent to which the piston ring is stretched, so as to ensure that the piston can be smoothly inserted into the piston ring and to prevent the piston ring from being stretched too much and damaged.

[0108] In a preferred embodiment, the side of the limiting ring 15 has a side opening 16;

[0109] Piston ring positioning mechanism 2 includes: a positioning plate 21 and a positioning cylinder 22;

[0110] The positioning plate 21 passes through the side opening 16 and contacts the piston ring on the support ring 11;

[0111] The positioning plate 21 and the limiting ring 15 cooperate to compress the piston ring, so that the piston ring is positioned on the support ring 11.

[0112] In this example, by setting the positioning plate 21 to cooperate with the limiting ring 15, the piston ring is squeezed and fixed on the support ring 11, which plays a positioning role for the support ring 11; at the same time, the positioning plate 21 also cooperates with the support claw 12, so that the support claw 12 can provide support force to the piston ring when opening the piston ring opening, ensuring that the support claw 12 can smoothly open the piston ring opening.

[0113] Optionally, the limiting ring 15 has a limiting notch 17 that connects the upper and lower surfaces of the limiting ring 15. The limiting notch 17 corresponds to the support notch 13, and the support claw 12 passes through the support notch 13 and the limiting notch 17 in sequence.

[0114] Optionally, the side opening 16 is located on the side of the limiting ring 15 away from the limiting notch 17.

[0115] In a preferred embodiment, the piston loading mechanism 3 includes: a lifting plate 31 and a lifting cylinder 32;

[0116] The lifting plate 31 is located below the support ring 11 and is used to support the piston;

[0117] The diameter of the lifting plate 31 is smaller than the inner diameter of the support ring 11;

[0118] The lifting cylinder 32 is connected to the bottom of the lifting plate 31;

[0119] The lifting cylinder 32 is used to control the lifting plate 31 to drive the piston to move toward the support ring 11.

[0120] In this example, the lifting plate 31 is used to support the piston, and the lifting cylinder 32 is used to control the piston to move toward the support ring 11, so that the piston ring on the support ring 11 is fitted onto the piston.

[0121] Optionally, the lifting plate 31 is circular.

[0122] In a preferred embodiment, it further includes: an upper support plate 4 and a cylinder bracket 5;

[0123] The upper support plate 4 has a first opening 41 and a second opening 42;

[0124] The first opening 41 and the second opening 42 are respectively connected to the upper surface and the lower surface of the upper support plate 4, and the first opening 41 and the second opening 42 are connected to each other.

[0125] The support ring 11 and the limiting ring 15 are fixed inside the first opening 41;

[0126] The positioning cylinder 22 is fixed inside the second port 42, and the positioning plate 21 is inserted from the second port 42 into the limiting ring 15 located inside the first port 41;

[0127] The cylinder bracket 5 is fixed on the lower surface of the upper support plate 4 and connected to the positioning cylinder 22.

[0128] In this example, the piston ring opening mechanism 1 is fixed by setting the upper support plate 4, and the piston ring positioning mechanism 2 is fixed by setting the upper support plate 4 and the cylinder bracket 5, so that the positioning cylinder 22 can operate stably inside the upper support plate 4.

[0129] In a preferred embodiment, it further includes: a cover plate 6;

[0130] The cover plate 6 is detachably connected to the upper surface of the upper support plate 4;

[0131] The cover plate 6 covers the second opening 42 and the side opening 16.

[0132] In this example, by setting the cover plate 6, the positioning cylinder 22 is limited and guided, preventing the positioning cylinder 22 from detaching from the upper support plate 4, thus ensuring the operational stability of the device.

[0133] In a preferred embodiment, it further includes: a central support plate 7 and at least one central support column 8;

[0134] The middle support plate 7 is located below the first opening 41 and the second opening 42;

[0135] The gripper cylinder 14 is fixed on the middle support plate 7;

[0136] The lifting cylinder 32 is fixed on the middle support plate 7;

[0137] The top of the middle support column 8 is connected to the lower surface of the upper support plate 4;

[0138] The bottom end of the central support column 8 is connected to the upper surface of the central support plate 7.

[0139] In this example, by setting the middle support plate 7 and the middle support column 8, the lifting cylinder 32 and the gripper cylinder 14 are located below the upper support plate 4, so as to ensure that the gripper cylinder 14 and the lifting cylinder 32 can be below the upper support plate 4, so that the piston can be smoothly inserted into the piston ring.

[0140] In a preferred embodiment, it further includes: a lower support plate 9 and at least one lower support column 10;

[0141] The lower support plate 9 is located below the middle support plate 7;

[0142] The top of the lower support column 10 is connected to the lower surface of the upper support plate 4;

[0143] The bottom end of the lower support column 10 is connected to the upper surface of the lower support plate 9.

[0144] In this example, by setting the lower support plate 9 and the lower support column 10, the piston ring mounting device can be stably placed on the ground.

[0145] Example 2:

[0146] Please see Figures 1-4 This application provides a piston ring installation method, including:

[0147] S1: Place at least one piston ring to be installed on the piston ring positioning mechanism 2.

[0148] In a preferred embodiment, placing at least one piston ring to be installed on the piston ring positioning mechanism 2 includes:

[0149] Input the grasping parameter N into the robotic arm; where N is a natural number greater than or equal to 1;

[0150] The robotic arm is controlled to grab N piston rings to be installed from the piston ring storage bin according to the gripping parameters, and place the N piston rings to be installed on the support ring 11 of the piston ring positioning mechanism 2, and make the openings of the N piston rings fit onto the support claws 12 of the piston ring opening mechanism 1; or

[0151] The control robot arm repeats the actions of grabbing a piston ring to be installed from the piston ring storage bin N times according to the grabbing parameters, placing the piston ring to be installed on the support ring 11, and fitting the opening of the piston ring to be installed onto the support claw 12.

[0152] In this example, the piston ring to be installed is placed on the support ring 11 by using a robotic arm to achieve the technical effect of automatic feeding.

[0153] By grabbing N piston rings to be installed at once and placing them on the support ring 11, the technical effect of feeding multiple piston rings at once is achieved, thus improving the feeding efficiency.

[0154] For piston rings with large dimensions, grabbing multiple piston rings at once can easily cause them to fall off. Therefore, by completing the action of grabbing one piston ring and placing it on the support ring 11 in N steps, the reliability of piston ring feeding is ensured.

[0155] S2: Place a piston to be loaded onto the piston loading mechanism 3.

[0156] In a preferred embodiment, placing a piston to be loaded onto the piston loading mechanism 3 includes:

[0157] The robotic arm is controlled to grab a piston to be loaded from the piston storage bin and place the piston to be loaded on the lifting plate 31 of the piston loading mechanism 3.

[0158] In this example, the piston to be installed is placed on the lifting plate 31 by a robotic arm, thus achieving the technical effect of automatic feeding of the piston to be installed.

[0159] S3: Control the piston opening mechanism to open the opening of at least one piston to be installed.

[0160] In a preferred embodiment, controlling the piston-opening mechanism to open the opening of at least one piston to be installed includes:

[0161] Obtain the opening degree input by the user; the opening degree defines the size of the opening of the piston ring to be installed.

[0162] The gripper cylinder 14 of the piston ring opening mechanism 1 is activated, so that the gripper cylinder 14 controls the two support claws 12 to move back and forth by a distance to open the opening of the piston ring to be installed, and makes the outer contour of the piston ring to be installed contact the limiting ring 15 of the piston ring opening mechanism 1.

[0163] The positioning cylinder 22 of the piston ring positioning mechanism 2 is controlled to make the positioning plate 21 of the piston positioning mechanism contact the outer side of the piston ring to be installed. The positioning plate 21, the limiting ring 15 and the support claw 12 position the piston ring to be installed on the support ring 11.

[0164] In this example, the user can set different opening sizes for piston rings of different models and sizes. The gripper cylinder 14 controls the movement of the support claw 12 according to the opening size, so that the opening of the piston ring is opened to the size corresponding to the opening size, thereby ensuring that the subsequent piston to be installed can be smoothly inserted into the piston ring.

[0165] By setting a limiting ring 15, a positioning plate 21, and a positioning cylinder 22, a supporting force is provided for the piston ring to be installed with the opening widened, ensuring that the piston ring to be installed can be firmly fixed on the support ring 11, which is conducive to the subsequent insertion of the piston into the piston ring.

[0166] S4: Control the piston loading mechanism 3 to insert the piston to be loaded into the piston ring to be loaded.

[0167] In a preferred embodiment, the control piston loading mechanism 3 inserts the piston to be loaded into the piston ring to be loaded, including:

[0168] Obtain the first height input by the user; the first height defines the position of the piston ring on the piston to be installed;

[0169] The lifting cylinder 32 of the control piston loading mechanism 3 moves the lifting plate 31 upward to a first height, so that the piston to be loaded on the lifting plate 31 is inserted into the piston ring on the support ring 11, and the piston ring to be loaded is fitted into the designated position of the piston to be loaded.

[0170] In this example, by controlling the lifting cylinder 32 to raise the lifting plate 31 to the first height, the piston to be installed can pass through the piston ring to be installed by a specified distance, thereby achieving the technical effect of fitting the piston ring to be installed onto the piston at a specified position.

[0171] S5: Control the piston opening mechanism to release the opening of the piston to be installed.

[0172] In a preferred embodiment, controlling the piston opening mechanism to disengage the opening of the piston to be installed includes:

[0173] The gripper cylinder 14 of the piston opening mechanism drives the two support claws 12 to move relative to each other, so that the two support claws 12 are disengaged from the opening sides of the piston ring to be installed, or the pressure between the two support claws 12 and the opening sides of the piston ring to be installed is less than the preset pressure threshold.

[0174] In this step, when the support claw 12 disengages from the two sides of the opening, or when the pressure between the support claw 12 and the two sides of the opening is less than the pressure threshold, the piston ring fitted on the support claw 12 can be easily disengaged.

[0175] S6: Control the piston loading mechanism 3 to lift the piston to be loaded and the piston ring to be loaded, so that the piston ring to be loaded is disengaged from the piston ring positioning mechanism 2, and the loading piston is obtained; the loading piston is a piston with at least one piston ring installed.

[0176] In a preferred embodiment, the piston loading mechanism 3 is controlled to lift the piston to be loaded and the piston ring to be loaded, causing the piston ring to be loaded to disengage from the piston ring positioning mechanism 2, thereby obtaining the loaded piston, including:

[0177] Obtain the second altitude;

[0178] The lifting cylinder 32 of the control piston loading mechanism 3 moves to a second height, causing the lifting plate 31 to drive the piston to be loaded and the piston ring to be loaded to disengage from the piston ring positioning mechanism 2, and form a loading piston;

[0179] Control the robotic arm to grab the loading piston and move it to the assembly and storage station.

[0180] In this example, when the piston to be installed and the piston ring to be installed are lifted to the second height by the lifting cylinder 32, they will serve as the loading piston. The robot arm will move the loading piston at the second height to the assembly and storage station, thus achieving the technical effect of automatic material unloading.

[0181] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0182] Other embodiments of the present application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. The embodiments of the present application are intended to cover any variations, uses, or adaptations of the embodiments of the present application that follow the general principles of the embodiments of the present application and include common knowledge or customary technical means in the art not disclosed in the embodiments of the present application. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of the embodiments of the present application are indicated by the following claims.

[0183] It should be understood that the embodiments of this application are not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from their scope. The scope of the embodiments of this application is limited only by the appended claims.

Claims

1. A piston ring mounting device, characterized in that, include: A piston ring spreading mechanism, a piston ring positioning mechanism, and a piston loading mechanism; The piston ring spreading mechanism is used to place at least one piston ring and spread at least one opening of the piston ring; The piston ring positioning mechanism is used to squeeze the piston ring in the piston spreading mechanism and position the piston ring. The piston loading mechanism is located below the piston ring spreading mechanism. The piston loading mechanism is used to insert a piston into the piston ring in the piston ring spreading mechanism. The piston ring spreading mechanism and the piston ring positioning mechanism release the piston ring so that the piston ring is fitted onto the piston. The piston ring opening mechanism includes: a support ring and two support claws; The support ring is used to place at least one of the piston rings, and the support ring has a support notch that connects the upper surface and the lower surface of the support ring, the support notch corresponding to the opening of the piston ring; The two support claws are located within the support notch, and the two support claws are used to open at least one of the piston rings; The piston ring opening mechanism further includes: a gripper cylinder; The gripper cylinder is connected to the two support claws, and the gripper cylinder is used to control the two support claws to move in opposite directions and relative to each other; The piston ring opening mechanism further includes: a limiting ring; The limiting ring is located above the support ring; The inner diameter of the limiting ring is larger than the inner diameter of the support ring; The limiting ring has a side opening on its side; The piston ring positioning mechanism includes: a positioning plate and a positioning cylinder; The positioning plate passes through the side opening and contacts the piston ring on the support ring; The positioning plate cooperates with the limiting ring to compress the piston ring, thereby positioning the piston ring on the support ring.

2. The piston ring mounting device according to claim 1, characterized in that, The piston loading mechanism includes: a lifting plate and a lifting cylinder; The lifting plate is located below the support ring and is used to support the piston; The diameter of the lifting plate is smaller than the inner diameter of the support ring; The lifting cylinder is connected to the bottom of the lifting plate; The lifting cylinder is used to control the lifting plate to move the piston toward the support ring.

3. The piston ring mounting device according to claim 2, characterized in that, Also includes: An upper support plate and a cylinder bracket; The upper support plate has a first opening and a second opening; The first port and the second port are respectively connected to the upper surface and the lower surface of the upper support plate, and the first port and the second port are interconnected. The support ring and the limiting ring are fixed inside the first opening; The positioning cylinder is fixed inside the second port, and the positioning plate is inserted from the second port into the limiting ring located inside the first port; The cylinder bracket is fixed to the lower surface of the upper support plate and connected to the positioning cylinder.

4. The piston ring mounting device according to claim 3, characterized in that, Also includes: A cover plate; The cover plate is detachably connected to the upper surface of the upper support plate; The cover plate covers the second opening and the side opening.

5. The piston ring mounting device according to claim 3, characterized in that, Also includes: One intermediate support plate and at least one intermediate support column; The middle support plate is located below the first opening and the second opening; The gripper cylinder is fixed to the middle support plate; The lifting cylinder is fixed to the middle support plate; The top of the middle support column is connected to the lower surface of the upper support plate; The bottom end of the central support column is connected to the upper surface of the central support plate.

6. A piston ring installation method, characterized in that, Using the piston ring mounting device according to any one of claims 1-5, the method comprises: Place at least one piston ring to be installed on the piston ring positioning mechanism; Place a piston to be loaded onto the piston loading mechanism; The piston-opening mechanism is controlled to open the opening of at least one of the pistons to be installed; The control piston opening mechanism opens the opening of at least one piston to be installed, including: Obtain the opening degree input by the user; the opening degree defines the size of the opening of the piston ring to be installed. The gripper cylinder of the piston ring opening mechanism is activated, which controls the two grippers to move in opposite directions by a distance to open the opening of the piston ring to be installed, and to make the outer contour of the piston ring to be installed contact the limiting ring of the piston ring opening mechanism. The positioning cylinder of the piston ring positioning mechanism is controlled so that the positioning plate of the piston positioning mechanism contacts the outer side of the piston ring to be installed. The positioning plate, the limiting ring and the support claw position the piston ring to be installed on the support ring. The piston loading mechanism is controlled to insert the piston to be loaded into the piston ring to be loaded; Control the piston opening mechanism to release the opening of the piston to be installed; The piston loading mechanism is controlled to lift the piston to be loaded and the piston ring to be loaded, so that the piston ring to be loaded is disengaged from the piston ring positioning mechanism, and a loading piston is obtained; the loading piston is a piston with at least one piston ring installed.

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