Piston ring mounting device and method

Abstract

The invention provides a piston ring mounting device and method. The piston ring mounting device comprises a piston ring opening mechanism, a piston ring positioning mechanism and a piston loading mechanism. The piston ring opening mechanism is used for placing at least one piston ring and opening an opening of the at least one piston ring; the piston ring positioning mechanism is used for extruding the piston ring in the piston opening mechanism and positioning the piston ring; the piston loading mechanism is located below the piston ring opening mechanism and used for inserting a piston into a piston ring in the piston ring opening mechanism, and the piston ring opening mechanism and the piston ring positioning mechanism loosen the piston ring to enable the piston ring to be arranged on the piston in a sleeving mode. According to the piston ring mounting device, the technical effect of automatically mounting the piston ring on the piston is achieved, the mounting efficiency of the piston ring is improved, and then the production efficiency of an automobile is improved.

Description

Technical Field

[0001] The present application relates to the field of mechanical technology, and in particular to a piston ring installation device and installation method. Background Art

[0002] With the progress of society, competition in the automotive industry has become increasingly fierce. In order to improve the transportation efficiency of the production line, reduce labor costs, avoid excessive labor intensity and other factors, in order to meet the increasingly fierce competitive environment.

[0003] However, the inventors have found that the current installation of automobile piston rings mainly relies on manually opening the opening on the piston ring and putting the piston ring on the piston to achieve the installation of the piston ring, resulting in low efficiency in the installation of the piston ring, which in turn leads to reduced production efficiency of the automobile. Summary of the invention

[0004] The present application provides a piston ring installation device and an installation method, which are used to solve the current problem of low efficiency in piston ring installation.

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

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

[0007] The piston ring positioning mechanism is used to squeeze the piston ring in the piston expansion mechanism to position the piston ring;

[0008] The piston loading mechanism is located below the piston ring spreading mechanism, and 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 loosen the piston ring so that the piston ring is sleeved on the piston.

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

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

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

[0012] In the above scheme, the piston ring expansion mechanism also includes: a clamping claw cylinder;

[0013] The clamping jaw cylinder is connected to the two support jaws, and the clamping jaw cylinder is used to control the back movement and relative movement of the two support jaws.

[0014] In the above solution, the piston ring expansion mechanism further includes: a limit ring;

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

[0016] The inner diameter of the limiting ring is greater than the inner diameter of the supporting ring.

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

[0018] The piston ring positioning mechanism comprises: 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 squeeze the piston ring so that the piston ring is positioned on the supporting 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 supporting ring, and the lifting plate 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 drive the piston to move toward the support ring.

[0026] The above scheme further 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 through-port and the second through-port are connected to the upper surface and the lower surface of the upper support plate respectively, and the first through-port and the second through-port are connected to each other;

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

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

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

[0032] The above scheme further 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 through port and the side opening.

[0035] The above solution further includes: a middle support plate and at least one middle support column;

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

[0037] The clamping claw cylinder is fixed on the middle support plate;

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

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

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

[0041] The above solution further 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 end 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] In a second aspect, the present application further provides a piston ring installation method, using the above-mentioned piston ring installation device, the method comprising:

[0046] At least one piston ring to be installed is placed on the piston ring positioning mechanism.

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

[0048] The piston expansion mechanism is controlled to expand at least one opening for the piston to be installed.

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

[0050] The piston expansion 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 installed and the piston ring to be installed, so that the piston ring to be installed is separated from the piston ring positioning mechanism to obtain a loading piston; the loading piston is a piston installed with at least one piston ring.

[0052] The present application provides a piston ring installation device and installation method, which expand the inner diameter of the piston ring by setting a piston ring expansion mechanism to expand the opening of at least one piston ring.

[0053] The piston ring in the piston expansion mechanism is squeezed by the piston ring positioning mechanism to position the piston ring, so as to facilitate the subsequent insertion of the piston into the expanded piston ring; at the same time, the squeezing of the piston ring by the piston positioning mechanism provides a supporting force for the piston ring expansion mechanism, which is more conducive to the piston ring expansion mechanism to expand the piston ring.

[0054] By inserting a piston into the piston ring in the piston ring expansion mechanism through the piston loading mechanism, the technical effect of automatically sleeved the piston ring on the piston and controlled the position of the piston ring is achieved.

[0055] The piston ring is loosened through the piston ring spreading mechanism and the piston ring positioning mechanism, so that the piston ring is sleeved on the piston, achieving the technical effect of automatically installing the piston ring on the piston, improving the installation efficiency of the piston ring, and further improving the production efficiency of the automobile. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0057] Figure 1 A schematic structural diagram of a piston ring installation device provided in this application;

[0058] Figure 2 A schematic diagram of the top view of a piston ring installation device provided in the present application;

[0059] Figure 3 for Figure 2 AA section structural diagram;

[0060] Figure 4 A flow chart of a piston ring installation method provided in this application.

[0061] Reference numerals:

[0062] 1: Piston ring expansion 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: Middle support column;

[0070] 9: Lower support plate;

[0071] 10: Lower support column;

[0072] 11: support ring;

[0073] 12: claws;

[0074] 13: Support 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 port;

[0084] 42: The second port.

[0085] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0086] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers 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 the embodiments of the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the embodiments of the present application as detailed in the appended claims.

[0087] The following specific embodiments are used to describe in detail the technical solutions of the embodiments of the present application and how the technical solutions of the embodiments of the present application solve the current problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0088] Embodiment 1:

[0089] See also Figure 1-Figure 3 , the embodiment of the present application provides a piston ring installation device, comprising: 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 squeeze the piston ring in the piston expansion mechanism and position the piston ring;

[0092] The piston loading mechanism 3 is located below the piston ring spreading mechanism 1. The piston loading mechanism 3 is used to insert a piston into the piston ring in the piston ring spreading mechanism 1. The piston ring spreading mechanism 1 and the piston ring positioning mechanism 2 loosen the piston ring so that the piston ring is sleeved on the piston.

[0093] In this example, the piston ring expansion mechanism 1 is provided to expand the opening of at least one piston ring so as to enlarge the inner diameter of the piston ring.

[0094] The piston ring in the piston expansion mechanism is squeezed by the piston ring positioning mechanism 2 to position the piston ring, so as to facilitate the subsequent insertion of the piston into the expanded piston ring; at the same time, the squeezing of the piston ring by the piston positioning mechanism provides a supporting force for the piston ring expansion mechanism 1, which is more conducive to the piston ring expansion mechanism 1 to expand 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 sleeve the piston ring on the piston and control the position of the piston ring is achieved.

[0096] The piston ring is loosened by the piston ring spreading mechanism 1 and the piston ring positioning mechanism 2 so that the piston ring is sleeved on the piston, thereby achieving the technical effect of automatically installing the piston ring on the piston, improving the installation efficiency of the piston ring and further improving the production efficiency of the automobile.

[0097] In a preferred embodiment, the piston ring spreading mechanism 1 comprises: a supporting ring 11 and two supporting claws 12;

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

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

[0100] In this example, a support ring 11 is provided to support the piston ring; a support notch 13 is provided, and the opening of the piston ring is made to correspond to the support notch 13; two support claws 12 are provided, and the opening of the piston ring is supported at the support notch 13 to achieve the technical effect of supporting the inner diameter of the piston ring.

[0101] In a preferred embodiment, the piston ring spreading mechanism 1 further comprises: a clamping claw cylinder 14;

[0102] The clamping jaw cylinder 14 is connected to the two supporting jaws 12 , and the clamping jaw cylinder 14 is used to control the two supporting jaws 12 to move back and relative to each other.

[0103] In this example, the clamping claw cylinder 14 is provided to automatically control the moving direction of the support claw 12, thereby achieving the technical effect of automatically spreading the piston ring.

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

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

[0106] The inner diameter of the limiting ring 15 is greater than the inner diameter of the supporting ring 11 .

[0107] In this example, a limit ring 15 is provided to limit the extent to which the piston ring is stretched, thereby preventing the piston ring from being excessively stretched and damaged while ensuring that the piston can be smoothly inserted into the piston ring.

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

[0109] The piston ring positioning mechanism 2 comprises: 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 cooperates with the limiting ring 15 to squeeze the piston ring so that the piston ring is positioned on the supporting ring 11 .

[0112] In this example, the piston ring is squeezed and fixed on the support ring 11 by setting a positioning plate 21 in cooperation with the limit ring 15, thereby playing a role in positioning 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 supporting force to the piston ring when it opens the opening of the piston ring, thereby ensuring that the support claw 12 can smoothly open the opening of the piston ring.

[0113] Optionally, the limiting ring 15 has a limiting notch 17 connecting the upper surface and the lower surface of the limiting ring 15 , the limiting notch 17 corresponds to the supporting notch 13 , and the supporting claw 12 passes through the supporting notch 13 and the limiting notch 17 in sequence.

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

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

[0116] The lifting plate 31 is located below the support ring 11, and the lifting plate 31 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 sleeved on the piston.

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

[0122] In a preferred embodiment, it further comprises: 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 through-hole 41 and the second through-hole 42 are connected to the upper surface and the lower surface of the upper support plate 4 respectively, and the first through-hole 41 and the second through-hole 42 are connected to each other;

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

[0126] The positioning cylinder 22 is fixed in the second opening 42, and the positioning plate 21 is inserted from the second opening 42 into the limiting ring 15 located in the first opening 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 spreading mechanism 1 is fixed by setting an upper support plate 4 , and the piston ring positioning mechanism 2 is fixed by setting an upper support plate 4 and a 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 comprises: 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 through port 42 and the side opening 16 .

[0132] In this example, the cover plate 6 is provided to limit and guide the positioning cylinder 22, thereby preventing the positioning cylinder 22 from being separated from the upper support plate 4, thereby ensuring the operating stability of the device.

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

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

[0135] The clamping jaw 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 end of the middle support column 8 is connected to the lower surface of the upper support plate 4;

[0138] The bottom end of the middle support column 8 is connected to the upper surface of the middle 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 clamping cylinder 14 are located below the upper support plate 4 to ensure that the clamping cylinder 14 and the lifting cylinder 32 can be below the upper support plate 4 and smoothly insert the piston into the piston ring.

[0140] In a preferred embodiment, it further comprises: 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 end 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 providing a lower support plate 9 and a lower support column 10, it is ensured that the piston ring installation device can be stably placed on the ground.

[0145] Embodiment 2:

[0146] See also Figure 1-Figure 4 , the present application provides a piston ring installation method, comprising:

[0147] S1: placing 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 comprises:

[0149] Enter the grasping parameter N in the robot; where N is a natural number greater than or equal to 1;

[0150] Control the manipulator to grab N piston rings to be installed from the piston ring storage bin according to the grabbing 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 be sleeved on the support claws 12 of the piston ring opening mechanism 1; or

[0151] The robot is controlled to repeat N times the actions of grabbing a piston ring to be installed from the piston ring storage bin according to the grabbing parameters, placing the piston ring to be installed on the support ring 11, and putting the opening of the piston ring to be installed on the support claw 12.

[0152] In this example, the piston ring to be installed is placed on the support ring 11 by using a robot, thereby achieving the technical effect of automatic loading.

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

[0154] For piston rings with larger sizes, grabbing multiple piston rings at one time may easily cause the piston rings to fall off. Therefore, the reliability of piston ring loading is ensured by completing the action of grabbing one piston ring and placing it on the support ring 11 N times.

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

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

[0157] The robot 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 robot, thereby achieving a technical effect of automatic loading of the piston to be installed.

[0159] S3: Control the piston opening mechanism to open at least one opening for installing a piston.

[0160] In a preferred embodiment, controlling the piston expansion mechanism to expand at least one opening for installing a piston comprises:

[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 clamping jaw cylinder 14 of the piston ring spreading mechanism 1 is controlled to start, so that the clamping jaw cylinder 14 controls the two spreading jaws 12 to move away from each other by a distance of the opening, so as to spread the opening of the piston ring to be installed, and make the outer contour of the piston ring to be installed contact with the limiting ring 15 of the piston ring spreading 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 surface of the piston ring to be installed. The positioning plate 21, the limit ring 15 and the support claws 12 position the piston ring to be installed on the support ring 11.

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

[0165] By providing the limit ring 15, the positioning plate 21 and the positioning cylinder 22, a supporting force is provided for the piston ring to be installed with the opening opened, so as to ensure that the piston ring to be installed can be firmly fixed on the supporting 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 installed into the piston ring to be installed.

[0167] In a preferred embodiment, controlling the piston loading mechanism 3 to insert the piston to be installed into the piston ring to be installed comprises:

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

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

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

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

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

[0173] The jaw cylinder 14 of the piston opening mechanism controls the two jaws 12 to move relative to each other, so that the two jaws 12 are separated from the opening sides of the piston ring to be installed, or the contact pressure between the two jaws 12 and the opening sides of the piston ring to be installed is less than a preset pressure threshold.

[0174] In this step, when the claws 12 are separated from the two sides of the opening, or the pressure between the claws 12 and the two sides of the opening is less than the pressure threshold, the piston ring sleeved on the claws 12 can be easily separated.

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

[0176] In a preferred embodiment, the piston loading mechanism 3 is controlled to lift the piston and the piston ring to be loaded, so that the piston ring to be loaded is separated from the piston ring positioning mechanism 2, and the loading piston is obtained, including:

[0177] Get the second height;

[0178] Control the lifting cylinder 32 of the piston loading mechanism 3 to move to a second height, so that the lifting plate 31 drives the piston to be loaded and the piston ring to be loaded to separate from the piston ring positioning mechanism 2, and form a loading piston;

[0179] Control the manipulator to grab the loading piston and move the loading piston to the assembly storage station.

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

[0181] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0182] Those skilled in the art will readily come to other embodiments of the present application embodiments after considering the specification and practicing the invention disclosed herein. The present application embodiments are intended to cover any variations, uses or adaptations of the present application embodiments, which follow the general principles of the present application embodiments and include common knowledge or customary technical means in the art that are not disclosed in the present application embodiments. The specification and embodiments are intended to be exemplary only, and the true scope and spirit of the present application embodiments are indicated by the following claims.

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

Claims

1. A piston ring installation device, characterized in that: include: a piston ring spreading mechanism, a piston ring positioning mechanism and a piston loading mechanism; The piston ring opening mechanism is used to place at least one piston ring and open at least one opening of the piston ring; The piston ring positioning mechanism is used to squeeze the piston ring in the piston expansion mechanism to position the piston ring; The piston loading mechanism is located below the piston ring spreading mechanism, and 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 loosen the piston ring so that the piston ring is sleeved on the piston.

2. The piston ring installation device according to claim 1, characterized in that: The piston ring support mechanism comprises: a support ring and two support claws; The support ring is used to place at least one piston ring, and the support ring has a support notch connecting the upper surface and the lower surface of the support ring, and the support notch corresponds to the opening of the piston ring; The two support claws are located in the support notch, and the two support claws are used to support at least one of the piston rings.

3. The piston ring installation device according to claim 2, characterized in that: The piston ring expansion mechanism also includes: a clamping claw cylinder; The clamping jaw cylinder is connected to the two support jaws, and the clamping jaw cylinder is used to control the back movement and relative movement of the two support jaws.

4. The piston ring installation device according to claim 3, characterized in that: The piston ring expansion mechanism also includes: a limit ring; The limiting ring is located above the supporting ring; The inner diameter of the limiting ring is greater than the inner diameter of the supporting ring.

5. The piston ring installation device according to claim 4, characterized in that: The side surface of the limiting ring has a side opening; The piston ring positioning mechanism comprises: 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 squeeze the piston ring so that the piston ring is positioned on the supporting ring.

6. The piston ring installation device according to claim 5, characterized in that: The piston loading mechanism comprises: a lifting plate and a lifting cylinder; The lifting plate is located below the supporting ring, and the lifting plate 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 drive the piston to move toward the support ring.

7. The piston ring installation device according to claim 6, 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 through-port and the second through-port are connected to the upper surface and the lower surface of the upper support plate respectively, and the first through-port and the second through-port are connected to each other; The support ring and the limiting ring are fixed in the first opening; The positioning cylinder is fixed in the second opening, and the positioning plate is inserted from the second opening into the limiting ring in the first opening; The cylinder bracket is fixed on the lower surface of the upper support plate and connected to the positioning cylinder.

8. The piston ring installation device according to claim 7, 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 through port and the side opening.

9. The piston ring installation device according to claim 7, characterized in that: Also includes: a middle support plate and at least one middle support column; The middle support plate is located below the first through opening and the second through opening; The clamping claw cylinder is fixed on the middle support plate; The lifting cylinder is fixed on the middle support plate; The top end of the middle support column is connected to the lower surface of the upper support plate; The bottom end of the middle support column is connected to the upper surface of the middle support plate.

10. A method for installing a piston ring, characterized in that: Using the piston ring installation device described in any one of claims 1 to 9, the method comprises: placing at least one piston ring to be installed on the piston ring positioning mechanism; placing a piston to be loaded on the piston loading mechanism; Controlling the piston opening mechanism to open at least one opening for the piston to be installed; Controlling the piston loading mechanism to insert the piston to be installed into the piston ring to be installed; Controlling the piston spreading mechanism to release the opening of the piston to be installed; The piston loading mechanism is controlled to lift the piston to be installed and the piston ring to be installed, so that the piston ring to be installed is separated from the piston ring positioning mechanism to obtain a loading piston; the loading piston is a piston installed with at least one piston ring.

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