A high-efficiency piston ring PVD vacuum coating equipment and process

Abstract

The present invention discloses an efficient piston ring PVD vacuum coating device and process thereof. The present invention relates to the technical field of coating equipment, comprising a tank body, a rotary placement mechanism comprising a lifting column fixedly mounted on the bottom of the inner surface of the tank body, the output end of the lifting column fixedly connected to a servo motor, the output end of the servo motor fixedly connected to a workbench, a drainage trough provided at the top edge of the workbench, a support assembly provided at the side surface edge of the workbench, a rolling assembly comprising a rectangular guide rail fixedly mounted on the inner surface of the tank body away from the vacuum pump, a connecting plate slidably connected to the inner surface of the rectangular guide rail, a rolling roller rotatably connected to the bottom of the connecting plate, a support rod fixedly connected to the bottom of the connecting plate near the rolling roller, and a cylindrical roller rotatably connected to the bottom end of the support rod. The efficient piston ring PVD vacuum coating device and process thereof achieves a uniform coating effect, can keep the piston ring in motion at all times, and thus contributes to uniform coating.

Description

Technical Field

[0001] The present invention relates to the technical field of coating equipment, and in particular to a high-efficiency piston ring PVD vacuum coating equipment and a process thereof. Background Art

[0002] Piston rings are metal rings that fit into the piston grooves and are a core component of engines. They are widely used in various power machinery, including steam, diesel, and gasoline engines, compressors, hydraulic presses, automobiles, trains, ships, and yachts. Piston rings are a core component within fuel-powered engines, working together with the cylinder, piston, and cylinder wall to seal the fuel gas. Technological advances have led to the development of high-performance steel piston rings. As engine performance and environmental requirements continue to increase, the performance requirements for piston rings are becoming increasingly stringent. Piston rings operate in a high-temperature environment, where compressed air, fuel gas, lubricating oil, and combustion products all interact with the piston rings. This creates extremely high demands on their corrosion resistance and thermal stability. Surface treatment technologies can significantly enhance their performance. Vacuum coating can improve piston ring performance.

[0003] At present, when the existing piston ring is coated, the piston ring is always in a static state and is easily affected by the vibration of the equipment itself and external forces, resulting in uneven coating, a high defective rate, and great economic losses. Summary of the Invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: an efficient piston ring PVD vacuum coating equipment, comprising:

[0005] A tank body, a steam furnace fixedly mounted on the side surface of the tank body near the bottom, a vacuum pump fixedly mounted on the side surface of the tank body near the steam furnace, a rotary placement mechanism disposed inside the tank body, and a rolling assembly disposed on the inner surface of the tank body;

[0006] The rotary placement mechanism is used to place the piston rings;

[0007] The rotary placement mechanism includes a lifting column fixedly installed on the bottom surface of the tank body, the output end of the lifting column is fixedly connected to a servo motor, the output end of the servo motor is fixedly connected to a workbench, a drainage groove is provided at the top edge of the workbench, the bottom edge of the workbench is fixedly connected to an annular extension edge, and a support assembly is provided on the side surface edge of the workbench. The servo motor can be driven to move upward and downward by the extension and contraction of the lifting column, thereby driving the workbench to move up and down, thereby adjusting the height of the piston ring on the top of the workbench, thereby facilitating film coating;

[0008] At the same time, the output end of the servo motor is used to drive the workbench to rotate, so that the piston ring on the top of the workbench rotates together, so that the piston ring is always in a rotating state, thereby avoiding static state, which can promote the coating of the piston ring;

[0009] This highly efficient piston ring PVD vacuum coating equipment also includes:

[0010] The rolling assembly includes a rectangular guide rail installed and fixed on the inner surface of the tank body and away from the side of the vacuum pump, the inner surface of the rectangular guide rail is slidably connected to a connecting plate, the bottom of the connecting plate is rotatably connected to a rolling roller, the bottom of the connecting plate and a position close to the rolling roller are fixedly connected to a support rod, the bottom end of the support rod is rotatably connected to a cylindrical roller, the top of the connecting plate is fixedly connected to a positioning groove body, the bottom of the connecting plate and a position close to the rectangular guide rail are fixedly connected to an elastic strip, the rolling roller is located on the top of the piston ring, and the cylindrical rollers on both sides are symmetrically located on the surface of the piston ring, and when the piston ring rotates, under the action of friction, the rolling roller and the cylindrical roller roll the coating liquid on the surface of the piston ring, so that the coating liquid fits tightly with the piston ring and promotes adhesion to the surface of the piston ring to achieve the effect of uniform coating.

[0011] Preferably, a pump body is fixedly installed at the center of the bottom of the steam furnace, the input end of the pump body is fixed and connected with a pipe, the bottom end of the pipe is fixed and connected with the bottom of the tank body, the output end of the steam furnace passes through the side surface of the tank body and extends into the interior thereof, a nozzle is fixedly installed at the output end of the steam furnace, the nozzle can spray out the coating liquid evenly, a hook is hinged at the top of the side surface of the tank body, and a support leg is fixedly connected to the bottom of the side surface of the tank body, the support leg can support the entire device, so that the equipment as a whole is more stable.

[0012] Preferably, there are two lifting columns, and the two lifting columns are symmetrically arranged along the servo motor. The drainage troughs are evenly distributed on the top edge of the workbench, and multiple groups of drainage troughs can be used to discharge the coating liquid on the top of the workbench.

[0013] Under the guidance of the drainage trough, the coating liquid can be discharged in time without affecting the coating, and the coating liquid can also be recovered in time.

[0014] Preferably, the support assembly includes a circular ring, the inner surface of the circular ring is rotatably connected to the edge of the side surface of the workbench, the side surface of the circular ring is fixedly connected to a cylindrical rod, the top of the cylindrical rod is fixedly connected to a conical top pressure ring, and under the support of the cylindrical rod, the conical top pressure ring is embedded in the interior of the sealing ring, and the side surface of the conical top pressure ring fits with the inner surface of the sealing ring, so that the workbench will not get stuck when rotating;

[0015] At the same time, under the joint action of the circular ring, cylindrical rod and conical top pressure ring, the workbench can be supported, making the workbench more stable when rotating and less likely to tilt and shake.

[0016] Preferably, the edge of the side surface of the workbench is provided with a rotation groove adapted to the inner surface of the ring, so that the workbench is not easily stuck when rotating, and the diameter of the conical top pressure ring gradually increases from top to bottom.

[0017] Preferably, the bottom end of the elastic strip is fixedly connected to the bottom of the inner surface of the rectangular guide rail, so that the elastic strip is compressed when the connecting plate slides downward, and the side surface end of the connecting plate fits with the inner surface of the rectangular guide rail, so that the connecting plate is more stable when sliding, and the opening of the positioning groove body is upward.

[0018] Preferably, a rotation groove adapted to the bottom end of the support rod is provided on the top of the cylindrical roller to facilitate the rotation of the cylindrical roller. Two cylindrical rollers are provided, and the two cylindrical rollers are symmetrically arranged along the rolling roller.

[0019] Preferably, a sealing assembly is provided on the top of the tank body, and the sealing assembly includes a top cover, which is snap-fitted to the top of the tank body, a U-shaped handle fixedly connected to the center of the top of the top cover, a sealing ring fixedly connected to the top edge of the inner surface of the top cover, and a round-headed pressure rod fixedly connected to the top of the inner surface of the top cover near the sealing ring, so that the top cover is covered on the top of the tank body to form a seal and achieve a preliminary seal;

[0020] At the same time, the sealing ring will be squeezed by the conical top pressure ring, and combined with the good flexibility of the sealing ring itself, it is easy to deform after being pressurized, and then form a seal again, which is not easy to leak. Under the action of the vacuum pump, it is easy to form a vacuum in the tank.

[0021] Preferably, the material of the sealing ring is set to be rubber material, which has good flexibility and is easy to be squeezed and deformed, and the center of the sealing ring coincides with the center of the top cover.

[0022] The positioning groove body is subjected to the downward pressure of the round head pressure rod, so that the positioning groove body will apply pressure to the connecting plate. At this time, the connecting plate moves downward under the guidance of the rectangular guide rail. At this time, the rolling roller and the cylindrical roller will move downward with the connecting plate to fine-tune the height.

[0023] An efficient piston ring PVD vacuum coating process comprises the following steps:

[0024] Step 1: First, inject an appropriate amount of coating liquid into the steam furnace and place the piston ring to be coated on the top of the workbench;

[0025] Step 2: Turn on the lifting column to extend it. At this time, the working end of the lifting column pushes the workbench upward, thereby moving the piston ring on the top of the workbench upward to adjust the height. When the piston ring moves to the specified position, the extension of the lifting column stops.

[0026] Step 3: Extend the round-headed pressure rod to the inside of the tank body, and make the bottom end of the round-headed pressure rod be just above the positioning groove body. At this time, cover the top of the tank body, and then rotate the hook counterclockwise to connect it to the top of the top cover. At this time, the bottom end of the round-headed pressure rod applies downward pressure to the positioning groove body, and drives the rolling roller and the cylindrical roller to move downward through the connecting plate, and fine-tune the height so that the outer surface of the rolling roller fits the top of the piston ring, and the cylindrical roller fits the side surface of the piston ring;

[0027] Step 4: Turn on the vacuum pump to evacuate the tank, and turn on the servo motor. The output end of the servo motor drives the workbench to rotate. The piston ring on the top of the workbench will rotate with it. At the same time, the coating liquid inside the steam furnace is converted into steam and sprayed out through the nozzle, and then the coating is sprayed while the piston ring rotates.

[0028] Step 5: When the coating is completed, stop the servo motor, steam furnace and vacuum pump, rotate the hook in the opposite direction to disengage the hook from the top cover, and remove the top cover as a whole. At this time, turn over the piston ring on the top of the workbench and repeat the above steps to coat it again.

[0029] The present invention provides an efficient piston ring PVD vacuum coating device and process thereof. It has the following beneficial effects:

[0030] 1. This efficient piston ring PVD vacuum coating equipment and process utilizes a rolling roller on the top of the piston ring and symmetrical cylindrical rollers on both sides on the surface of the piston ring. When the piston ring rotates, under the action of friction, the rolling roller and the cylindrical roller roll the coating liquid on the surface of the piston ring, so that the coating liquid fits tightly to the piston ring and promotes adhesion to the surface of the piston ring, achieving the effect of uniform coating.

[0031] 2. This efficient piston ring PVD vacuum coating equipment and process can move the workbench up and down by extending and contracting the lifting column, thereby adjusting the height of the piston ring on the top of the workbench, which is helpful for coating. At the same time, the workbench is driven to rotate by the rotation of the servo motor output end, causing the piston ring on the top of the workbench to rotate together, so that the piston ring is always in a rotating state, thereby avoiding static state, which can promote the coating of the piston ring.

[0032] 3. This efficient piston ring PVD vacuum coating equipment and process, when the nozzle sprays the coating liquid onto the piston ring, the excess coating liquid will flow to the top of the workbench and be discharged in time under the guidance of the drainage trough, which will not affect the coating and can also be recycled in time.

[0033] Fourth, this efficient piston ring PVD vacuum coating equipment and process, with the support of the cylindrical rod, allows the conical top pressure ring to be embedded in the interior of the sealing ring. Under the joint action of the ring, cylindrical rod and conical top pressure ring, the workbench can be supported, making the workbench more stable during rotation and less prone to skewing and shaking.

[0034] 5. The efficient piston ring PVD vacuum coating equipment and its process puts the top cover on the top of the tank body to form a seal to achieve a preliminary seal. At the same time, as the conical top pressure ring moves upward, the conical top pressure ring fits against the sealing ring, and the sealing ring will be squeezed by the conical top pressure ring. Combined with the good flexibility of the sealing ring itself, it is easy to deform after being pressurized, and then form a seal again, which is not prone to air leakage. Under the action of the vacuum pump, it is easy to form a vacuum in the tank body.

[0035] 6. This efficient piston ring PVD vacuum coating equipment and process utilizes the downward pressure of the round-head pressure rod on the positioning groove body, so that the positioning groove body will apply pressure to the connecting plate. At this time, the connecting plate moves downward under the guidance of the rectangular guide rail, and the elastic strip is compressed. At this time, the rolling roller and cylindrical roller will move downward with the connecting plate to fine-tune the height. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a flowchart of the efficient PVD vacuum coating process for piston rings of the present invention;

[0037] Figure 2 This is a schematic diagram of the overall structure of the efficient piston ring PVD vacuum coating equipment and its process of the present invention;

[0038] Figure 3 This is a schematic diagram of the internal structure of the efficient piston ring PVD vacuum coating equipment and its process cross section of the present invention;

[0039] Figure 4 This is a schematic diagram of the connection structure between the rotary placement mechanism and the tank body of the present invention;

[0040] Figure 5 This is a schematic diagram of the overall structure of the support assembly of the present invention;

[0041] Figure 6 Schematic diagram of the cross-sectional structure of the workbench, circular ring and annular extension edge of the present invention;

[0042] Figure 7This is a schematic diagram of the connection structure between the rolling assembly and the tank body of the present invention;

[0043] Figure 8 This is a schematic diagram of the overall structure of the rolling assembly of the present invention;

[0044] Figure 9 It is a schematic diagram of the cross-sectional structure of the sealing assembly and the disassembled structure of the tank body of the present invention.

[0045] In the figure: 1. Tank body; 2. Steam furnace; 3. Vacuum pump; 4. Rotary placement mechanism; 5. Rolling assembly; 6. Pump body; 7. Pipeline; 8. Nozzle; 9. Hook; 10. Support leg; 11. Sealing assembly; 41. Lifting column; 42. Servo motor; 43. Workbench; 44. Drain trough; 45. Annular extension edge; 46. Support assembly; 51. Rectangular guide rail; 52. Connecting plate; 53. Rolling roller; 54. Support rod; 55. Cylindrical roller; 56. Positioning trough; 57. Elastic strip; 461. Ring; 462. Cylindrical rod; 463. Conical top pressure ring; 111. Top cover; 112. U-shaped handle; 113. Sealing ring; 114. Round head pressure rod. DETAILED DESCRIPTION

[0046] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described to better illustrate the principles of the invention and its practical application, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for specific applications.

[0047] The first embodiment, as Figures 1-6 As shown, the present invention provides a technical solution: an efficient piston ring PVD vacuum coating device, comprising:

[0048] The tank body 1 has a steam furnace 2 fixedly installed on its side surface and near the bottom, and a vacuum pump 3 fixedly installed on its side surface and near the steam furnace 2, a pump body 6 fixedly installed at the center of the bottom of the steam furnace 2, the input end of the pump body 6 is fixed and connected with a pipe 7, the bottom end of the pipe 7 is fixed and connected with the bottom of the tank body 1, the output end of the steam furnace 2 passes through the side surface of the tank body 1 and extends into the interior thereof, a nozzle 8 is fixedly installed at the output end of the steam furnace 2, the nozzle 8 can evenly spray out the coating liquid, a hook 9 is hinged on the top of the side surface of the tank body 1, and a support leg 10 is fixedly connected to the bottom of the side surface of the tank body 1, the support leg 10 can support the entire device to make the entire device more stable, a rotating placement mechanism 4 is provided inside the tank body 1, and a rolling assembly 5 is provided on the inner surface of the tank body 1;

[0049] The rotary placement mechanism 4 is used to place the piston ring;

[0050] The rotary placement mechanism 4 includes a lifting column 41 fixedly mounted on the bottom of the inner surface of the tank body 1. The output end of the lifting column 41 is fixedly connected to a servo motor 42, and the output end of the servo motor 42 is fixedly connected to a workbench 43. A drainage groove 44 is provided at the top edge of the workbench 43, and an annular extension edge 45 is fixedly connected to the bottom edge of the workbench 43. A support assembly 46 is provided on the side surface edge of the workbench 43. The extension and contraction of the lifting column 41 can drive the servo motor 42 to move upward and downward, thereby driving the workbench 43 to move up and down, thereby adjusting the height of the piston ring on the top of the workbench 43.

[0051] At the same time, the output end of the servo motor 42 is rotated, and the workbench 43 is driven to rotate, so that the piston ring on the top of the workbench 43 rotates together, thereby making the piston ring always in a rotating state;

[0052] There are two lifting columns 41 , and the two lifting columns 41 are symmetrically arranged along the servo motor 42 . The drainage grooves 44 are evenly distributed on the top edge of the workbench 43 . Multiple groups of drainage grooves 44 can be used to drain the coating liquid on the top of the workbench 43 .

[0053] After the nozzle 8 sprays the coating liquid toward the piston ring, the excess coating liquid will flow to the top of the workbench 43 and be drained out in time under the guidance of the drainage trough 44 .

[0054] The support assembly 46 includes a circular ring 461, the inner surface of which is rotatably connected to the edge of the side surface of the workbench 43, and a cylindrical rod 462 is fixedly connected to the side surface of the circular ring 461. The top of the cylindrical rod 462 is fixedly connected to the conical top pressure ring 463. When the lifting column 41 extends to push the workbench 43 upward, the support assembly 46 as a whole will move upward, and under the support of the cylindrical rod 462, the conical top pressure ring 463 will be embedded in the interior of the sealing ring 113, and the side surface of the conical top pressure ring 463 will fit the inner surface of the sealing ring 113. In addition, the circular ring 461 is rotatably connected to the edge of the side surface of the workbench 43, so that the workbench 43 will not get stuck when rotating.

[0055] At the same time, under the joint action of the ring 461, the cylindrical rod 462 and the conical top pressure ring 463, the workbench 43 can be supported, thereby making the workbench 43 more stable when rotating.

[0056] The edge of the side surface of the workbench 43 is provided with a rotation groove adapted to the inner surface of the ring 461, so that the workbench 43 is not easily stuck when rotating. The diameter of the conical top pressure ring 463 gradually increases from top to bottom.

[0057] The second embodiment, as Figure 7-Figure 8 As shown,

[0058] This highly efficient piston ring PVD vacuum coating equipment also includes:

[0059] The rolling assembly 5 includes a rectangular guide rail 51 installed and fixed on the inner surface of the tank body 1 and away from the side of the vacuum pump 3. The inner surface of the rectangular guide rail 51 is slidably connected to a connecting plate 52. The bottom of the connecting plate 52 is rotatably connected to a rolling roller 53. The bottom of the connecting plate 52 and a position close to the rolling roller 53 are fixedly connected to a support rod 54. The bottom end of the support rod 54 is rotatably connected to a cylindrical roller 55. The top of the connecting plate 52 is fixedly connected to a positioning groove 56. The bottom of the connecting plate 52 and a position close to the rectangular guide rail 51 are fixedly connected to an elastic strip 57. The rolling roller 53 is located at the top of the piston ring, and the cylindrical rollers 55 on both sides are symmetrical and are located on the surface of the piston ring. When the piston ring rotates, under the action of friction, the rolling roller 53 and the cylindrical roller 55 roll the coating liquid on the surface of the piston ring, so that the coating liquid and the piston ring fit tightly.

[0060] The bottom end of the elastic strip 57 is fixedly connected to the bottom of the inner surface of the rectangular guide rail 51, so that the elastic strip 57 can be compressed when the connecting plate 52 slides downward. The side surface end of the connecting plate 52 fits with the inner surface of the rectangular guide rail 51, so that the connecting plate 52 can slide more smoothly, and the opening of the positioning groove 56 is upward.

[0061] The top of the cylindrical roller 55 is provided with a rotation groove adapted to the bottom end of the support rod 54 to facilitate the rotation of the cylindrical roller 55. There are two cylindrical rollers 55, and the two cylindrical rollers 55 are symmetrically arranged along the rolling roller 53.

[0062] The third embodiment, as Figures 1-9 As shown, based on the first and second embodiments:

[0063] A sealing assembly 11 is provided on the top of the tank body 1. The sealing assembly 11 includes a top cover 111, which is snap-fitted to the top of the tank body 1. A U-shaped handle 112 is fixedly connected to the center of the top of the top cover 111. A sealing ring 113 is fixedly connected to the top edge of the inner surface of the top cover 111. A round-headed pressure rod 114 is fixedly connected to the top of the inner surface of the top cover 111 near the sealing ring 113. The top cover 111 is covered on the top of the tank body 1 to form a sealing cover.

[0064] At the same time, as the conical top pressure ring 463 moves upward, the conical top pressure ring 463 fits against the sealing ring 113, and the sealing ring 113 will be squeezed by the conical top pressure ring 463. Combined with the fact that the material of the sealing ring 113 is set to rubber material, it has good flexibility and is easy to deform after being pressurized, thereby forming a seal again, and is not prone to air leakage. Under the action of the vacuum pump 3, it is easy to form a vacuum in the tank body 1.

[0065] The material of the sealing ring 113 is set to be rubber, which has good flexibility and is easy to be squeezed and deformed. The center of the sealing ring 113 coincides with the center of the top cover 111. When the top cover 111 is covered on the top of the tank body 1, the bottom end of the round-headed pressure rod 114 will be at the position of the positioning groove 56. At this time, the positioning groove 56 will be subjected to the downward pressing force of the round-headed pressure rod 114, so that the positioning groove 56 will apply pressure to the connecting plate 52. At this time, the connecting plate 52 moves downward under the guidance of the rectangular guide rail 51, and the elastic strip 57 is compressed. At this time, the rolling roller 53 and the cylindrical roller 55 will move downward with the connecting plate 52 to fine-tune the height.

[0066] When in use, first inject an appropriate amount of coating liquid into the steam furnace 2, and place the piston ring to be coated on the top of the workbench 43, turn on the lifting column 41 to extend, at this time the working end of the lifting column 41 pushes the workbench 43 upward, thereby causing the piston ring on the top of the workbench 43 to move upward to adjust the height, and stop the extension of the lifting column 41 when the piston ring moves to the specified position, extend the round-headed pressure rod 114 to the inside of the tank body 1, and make the bottom end of the round-headed pressure rod 114 be just above the positioning groove 56, at this time cover the top of the tank body 111, and then rotate the hook 9 counterclockwise to clamp it on the top of the top cover 111, at this time the bottom end of the round-headed pressure rod 114 applies downward pressure to the positioning groove 56, and drives the rolling roller 53 and the cylindrical roller 55 to move downward through the connecting plate 52, The height is fine-tuned so that the outer cylindrical surface of the rolling roller 53 fits with the top of the piston ring, and the cylindrical roller 55 fits with the side surface of the piston ring. The vacuum pump 3 is turned on to evacuate the tank body 1, and the servo motor 42 is turned on. At this time, the output end of the servo motor 42 drives the workbench 43 to rotate. At this time, the piston ring on the top of the workbench 43 will rotate together. At the same time, the coating liquid inside the steam furnace 2 is converted into steam and sprayed out through the nozzle 8, and then the coating is sprayed while the piston ring is rotating. When the coating is completed, the servo motor 42, the steam furnace 2 and the vacuum pump 3 are stopped, and the hook 9 is rotated in the opposite direction to disengage the hook 9 from the top cover 111, and the top cover 111 is removed as a whole. At this time, the piston ring on the top of the workbench 43 is turned over, and the above steps are repeated for coating again.

[0067] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. An efficient piston ring PVD vacuum coating equipment, characterized in that: include: A tank body (1), a steam furnace (2) is fixedly installed on the side surface of the tank body (1) and near the bottom position, and a vacuum pump (3) is fixedly installed on the side surface of the tank body (1) and near the position of the steam furnace (2), a pump body (6) is fixedly installed at the center position of the bottom of the steam furnace (2), the input end of the pump body (6) is fixed and connected with a pipe (7), the bottom end of the pipe (7) is fixed and connected with the bottom of the tank body (1), the output end of the steam furnace (2) passes through the side surface of the tank body (1) and extends into the interior thereof, a nozzle (8) is fixedly installed on the output end of the steam furnace (2), a hook (9) is hinged on the top of the side surface of the tank body (1), a support leg (10) is fixedly connected to the bottom of the side surface of the tank body (1), a rotary placement mechanism (4) is provided inside the tank body (1), and a rolling assembly (5) is provided on the inner surface of the tank body (1); The rotary placement mechanism (4) is used to place the piston ring, and the rotary placement mechanism (4) includes a lifting column (41) fixedly mounted on the bottom of the inner surface of the tank body (1), the output end of the lifting column (41) is fixedly connected to a servo motor (42), the output end of the servo motor (42) is fixedly connected to a workbench (43), a drainage groove (44) is provided at the top edge of the workbench (43), a ring-shaped extension edge (45) is fixedly connected to the bottom edge of the workbench (43), and a support assembly (46) is provided at the side surface edge of the workbench (43); The rolling assembly (5) includes a rectangular guide rail (51) mounted and fixed on the inner surface of the tank body (1) and away from the side of the vacuum pump (3), the inner surface of the rectangular guide rail (51) is slidably connected to a connecting plate (52), the bottom of the connecting plate (52) is rotatably connected to a rolling roller (53), the bottom of the connecting plate (52) and a position close to the rolling roller (53) are fixedly connected to a support rod (54), the bottom end of the support rod (54) is rotatably connected to a cylindrical roller (55), the top of the connecting plate (52) is fixedly connected to a positioning groove (56), and the bottom of the connecting plate (52) and a position close to the rectangular guide rail (51) are fixedly connected to an elastic strip (57); The support assembly (46) comprises a circular ring (461), the inner surface of the circular ring (461) being rotatably connected to the edge of the side surface of the workbench (43), the side surface of the circular ring (461) being fixedly connected to a cylindrical rod (462), and the top end of the cylindrical rod (462) being fixedly connected to a conical top pressure ring (463).

2. The efficient piston ring PVD vacuum coating equipment according to claim 1, characterized in that: Two lifting columns (41) are provided, and the two lifting columns (41) are symmetrically arranged along the servo motor (42), and the drainage grooves (44) are evenly distributed at the top edge of the workbench (43).

3. The efficient piston ring PVD vacuum coating equipment according to claim 1, characterized in that: The side surface edge of the workbench (43) is provided with a rotation groove adapted to the inner surface of the circular ring (461), and the diameter of the conical top pressing ring (463) gradually increases from top to bottom.

4. The efficient piston ring PVD vacuum coating equipment according to claim 1, characterized in that: The bottom end of the elastic strip (57) is fixedly connected to the bottom of the inner surface of the rectangular guide rail (51), the side surface end of the connecting plate (52) is fitted with the inner surface of the rectangular guide rail (51), and the opening of the positioning groove (56) is upward.

5. The efficient piston ring PVD vacuum coating equipment according to claim 1, characterized in that: A rotation groove adapted to the bottom end of the support rod (54) is provided on the top of the cylindrical roller (55). Two cylindrical rollers (55) are provided, and the two cylindrical rollers (55) are symmetrically arranged along the rolling roller (53).

6. The efficient piston ring PVD vacuum coating equipment according to claim 1, characterized in that: A sealing assembly (11) is provided on the top of the tank body (1), and the sealing assembly (11) includes a top cover (111), the top cover (111) is clamped on the top of the tank body (1), a U-shaped handle (112) is fixedly connected to the center of the top of the top cover (111), a sealing ring (113) is fixedly connected to the top edge of the inner surface of the top cover (111), and a round-headed pressure rod (114) is fixedly connected to the top of the inner surface of the top cover (111) and close to the sealing ring (113).

7. The efficient piston ring PVD vacuum coating equipment according to claim 6, characterized in that: The material of the sealing ring (113) is set to be rubber material, and the center of the sealing ring (113) coincides with the center of the top cover (111).

8. An efficient piston ring PVD vacuum coating process, implemented based on the efficient piston ring PVD vacuum coating equipment according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: first inject an appropriate amount of coating liquid into the steam furnace (2), and place the piston ring to be coated on the top of the workbench (43); Step 2: Open the lifting column (41) to extend it. At this time, the working end of the lifting column (41) pushes the workbench (43) upward, thereby causing the piston ring on the top of the workbench (43) to move upward to adjust the height. When the piston ring moves to the specified position, the extension of the lifting column (41) is stopped. Step 3: Extend the round-headed pressure rod (114) to the inside of the tank body (1), and make the bottom end of the round-headed pressure rod (114) be directly above the positioning groove body (56). At this time, cover the top of the tank body (1) with the top cover (111), and then rotate the hook (9) counterclockwise to be connected to the top of the top cover (111). At this time, the bottom end of the round-headed pressure rod (114) applies a downward pressing force to the positioning groove body (56), and drives the rolling roller (53) and the cylindrical roller (55) to move downward through the connecting plate (52), and fine-tune the height so that the outer cylindrical surface of the rolling roller (53) fits the top of the piston ring, and the cylindrical roller (55) fits the side surface of the piston ring; Step 4: Turn on the vacuum pump (3) to evacuate the tank (1), and turn on the servo motor (42). At this time, the output end of the servo motor (42) drives the workbench (43) to rotate. At this time, the piston ring on the top of the workbench (43) rotates together. At the same time, the coating liquid inside the steam furnace (2) is converted into steam and sprayed out through the nozzle (8), and then the coating is sprayed while the piston ring is rotating. Step 5: After the coating is completed, stop the servo motor (42), the steam furnace (2) and the vacuum pump (3), and rotate the hook (9) in the opposite direction to disengage the hook (9) from the top cover (111), and remove the top cover (111) as a whole. At this time, turn over the piston ring on the top of the workbench (43), and repeat the above steps to coat the film again.

Images