Drive assembly for avoiding displacement of a part during oil injection

Abstract

The application relates to the technical field of part processing, and particularly discloses a driving assembly for avoiding displacement of parts during oil spraying, which comprises a general driving mechanism and a floating pressing part connected to the output end of the general driving mechanism, an oil spraying rod is installed on the output end of the general driving mechanism, and the oil spraying rod is vertically and slidingly connected to the floating pressing part; the general driving mechanism comprises a plurality of vertical columns fixed at the bottom end, the top end of the vertical columns is fixedly connected with a top plate, the top plate is fixedly connected with a general driving oil cylinder, the output shaft of the general driving oil cylinder is fixedly connected with a mounting plate, the mounting plate is slidingly connected with the vertical columns, and the floating pressing part is connected with the mounting plate; the floating pressing part comprises a connecting plate, a single-acting cylinder is fixedly connected to the connecting plate, and the output shaft of the single-acting cylinder is fixedly connected with the mounting plate. The technical scheme can solve the problem that oil stains are easily formed on non-oil-coated parts of the parts during oil coating of the oil-coated parts in the prior art.

Description

[0001] This application is a divisional application of Chinese patent application No. 202210167421.8, filed on February 23, 2022, entitled "A Parts Oiling Machine". Technical Field

[0002] This invention relates to the field of parts processing technology, and more specifically to a drive assembly that prevents parts from shifting during the oil spraying process. Background Technology

[0003] When manufacturing parts with holes, the hole walls need to be oiled during processing to prevent rust during use and extend the part's lifespan. Current methods involve manual oiling, which is inefficient and prone to uneven application, resulting in inconsistent rust prevention on the hole walls. Furthermore, manual application makes it difficult to precisely control the amount of oil applied; excess oil flowing onto non-hole walls can form stains, affecting the part's appearance.

[0004] To address the aforementioned issues, invention patent CN110538753B proposes an automatic oiling device for the inner edge of a workpiece. This device includes a rotating disk mounted on a base plate and a three-axis translation mechanism. The three-axis translation mechanism is fixed to the base plate via oiling columns, and an atomizing nozzle is mounted on the mechanism. The three-axis translation mechanism drives the atomizing nozzle to move above the rotating disk along the X / Y / Z axes. A mounting plate is provided along the outer edge of the top of the rotating disk, with workpiece bases evenly distributed on the mounting plate. Each workpiece base has a placement groove for fitting the workpiece. An oiling baffle is also mounted on the base plate via a fixed baffle column. The oiling baffle has oiling holes penetrating the surface and bottom, positioned directly above the workpiece within its corresponding workpiece base and below the atomizing nozzle. The shape of the oiling holes matches the flared opening at the top of the workpiece. This invention can automatically and evenly apply oil to designated areas without affecting other areas, and automatically dries the oil after application, achieving a fully automated oiling process.

[0005] The existing technology described above also has the following technical problems: the oiling baffle and the workpiece are not sealed, and the atomized oil sprayed from the atomizing nozzle can still easily adhere to the non-oiled parts of the workpiece through the gap between the oiling baffle and the workpiece, forming oil stains on the non-oiled parts and affecting the appearance of the workpiece. Summary of the Invention

[0006] The purpose of this invention is to provide a parts oiling machine to solve the problem in the prior art that when oiling the parts that need to be oiled, oil stains are easily formed on the non-oiled parts of the parts.

[0007] To achieve the above objectives, the technical solution of the present invention is as follows:

[0008] A parts oiling machine includes a frame on which a drive assembly and a placement seat for placing parts are mounted. The drive assembly is located above the placement seat. The drive assembly includes a main drive mechanism and a floating clamping part connected to the output end of the main drive mechanism. An oil spray rod and a rotating device for driving the oil spray rod to rotate are mounted on the output end of the main drive mechanism. The oil spray rod is connected to an oil supply assembly and is vertically slidably connected to the floating clamping part. Sealing rings are provided on the lower end face of the floating clamping part and the upper end face of the placement seat.

[0009] Technical principles and advantages compared to existing technologies:

[0010] This technical solution involves applying oil to the hole walls of a part. First, the part is placed on the placement seat manually or by a robotic arm. Then, the drive assembly is activated, and the main drive mechanism enters its working state. The main drive mechanism first drives the floating clamping part downwards until it presses the part firmly against the placement seat, thus fixing the part's position. The main drive mechanism continues to drive the oil spray rod downwards, causing it to slide vertically relative to the floating clamping part. This allows the oil spray rod to extend into the part's hole and move downwards, at which point the floating clamping part is compressed by the main drive mechanism. During the downward sliding of the oil spray rod relative to the floating clamping part, a rotating device drives the oil spray rod to rotate around its own axis. The oil supply assembly supplies oil to the oil spray rod, which then rotates downwards, spraying oil onto the part's hole walls. During the oil spraying process, because both the lower end face of the floating clamping part and the upper end face of the placement seat are equipped with sealing rings, a "sealed space" is formed inside the part's hole, preventing the oil spray rod from spraying oil onto the non-hole wall areas of the part. After the oil spraying is completed, the rotating device and oil supply assembly are turned off. The main drive mechanism drives the oil spray rod to slide vertically upward relative to the floating clamping part until the floating clamping part is no longer compressed. Then, the main drive mechanism drives the oil spray rod and the floating clamping part to return to their original positions. At this time, the position of the part is released, and the part can be removed from the placement seat manually or by a robot.

[0011] Compared to existing technologies, this parts oiling machine:

[0012] 1. Install a placement seat on the frame and connect a floating clamping part to the output end of the main drive mechanism. Drive the floating clamping part to move closer to the placement seat through the main drive mechanism, pressing the part between the placement seat and the floating clamping part to fix the position of the part and prevent the part from shifting during the subsequent oil spraying process, which would affect the oil spraying effect of the part.

[0013] 2. Both the lower end face of the floating clamping part and the upper end face of the placement seat are equipped with sealing rings. That is, after the floating clamping part presses the part against the placement seat, the sealing ring on the lower end face of the floating clamping part seals the contact point between the floating clamping part and the part, and the sealing ring on the upper end face of the placement seat seals the contact point between the placement seat and the part. This creates a "closed space" inside the part hole. When the oil spray rod slides vertically downward relative to the floating clamping part to spray oil onto the wall of the part hole, the oil sprayed from the oil spray rod is confined inside the part hole. The oil will not be sprayed out by the oil spray rod to the non-oiled area, thus avoiding the formation of oil stains on the non-oiled area of ​​the part that affect the appearance of the part.

[0014] 3. The injection rod is connected to the output end of the main drive mechanism. The main drive mechanism drives the injection rod to slide downwards relative to the floating clamping part, causing the injection rod to extend into the part hole and move downwards. At this time, the oil supply assembly supplies oil to the injection rod. The injection rod sprays oil onto the hole wall from top to bottom within the part hole, ensuring uniform oil spraying across the hole wall. Furthermore, as the injection rod moves downwards within the part hole to spray oil onto the hole wall, the rotating device drives the injection rod to rotate around its own axis, further improving the uniformity of oil spraying onto the part hole wall and ensuring effective oil spraying.

[0015] Furthermore, the top end of the fuel injector is connected to the output end of the main drive mechanism, and an oil passage communicating with the fuel supply assembly is opened inside the fuel injector. Several fuel injection holes communicating with the oil passage are opened circumferentially on the bottom side wall of the fuel injector.

[0016] Beneficial effects: Using this solution, when the injector rod sprays oil onto the wall of the part's hole, the oil supply assembly delivers oil to the oil channel of the injector rod. As the injector rod rotates downwards around its own axis, the oil in the oil channel is evenly sprayed onto the wall of the part's hole through the spray nozzles. Simultaneously, several spray nozzles are circumferentially opened on the bottom sidewall of the injector rod. On the one hand, the simultaneous operation of multiple spray nozzles ensures spraying efficiency; on the other hand, the circumferential arrangement of several spray nozzles further improves the uniformity of oil spraying onto the hole wall.

[0017] Furthermore, the rotating device includes a motor and a bearing housing fixedly connected to the output end of the main drive mechanism, and a drive wheel fixedly connected to the output shaft of the motor; the fuel injection rod is rotatably connected to the bearing housing through a bearing, and a driven wheel is fixedly connected to the outer wall of the fuel injection rod, and the driven wheel is connected to the drive wheel through a belt.

[0018] Beneficial effects: With this solution, when the spray bar moves downwards within the part's hole to spray oil onto the hole wall, the motor starts, driving the drive wheel to rotate. The drive wheel, via a belt, drives the driven wheel to rotate, which in turn drives the spray bar to rotate around its own axis, thus achieving the rotational spraying of oil. Driving the spray bar to rotate around its own axis via belt drive is simple and easy to implement, without excessively increasing the overall structural complexity of the oiling machine. Furthermore, belt drive has high stability, ensuring the reliability of the rotating device driving the spray bar's rotation, which improves the overall practicality of the oiling machine.

[0019] Furthermore, the main drive mechanism includes several columns fixedly connected to the frame, a top plate fixedly connected to the other end of the columns relative to the end connected to the frame, a main drive cylinder fixedly connected to the top plate, a mounting plate fixedly connected to the output shaft of the main drive cylinder, a floating clamping part connected to the mounting plate, and the mounting plate slidably connected to the several columns.

[0020] Beneficial effects: With this solution, when the main drive mechanism drives the floating clamping part downwards to the working position to press the part against the placement seat, the main drive cylinder activates to push the mounting plate downwards, thereby causing the floating clamping part to move downwards. During the downward movement of the mounting plate, it slides on several columns, which guide the movement of the mounting plate, ensuring that it always moves vertically. The main drive mechanism has a simple and effective structure. It not only effectively realizes the driving action of the main drive cylinder on the floating clamping part, but also ensures that the movement path of the floating clamping part remains vertical, thus ensuring that the floating clamping part accurately reaches the working position, contacts the part, and presses the part against the placement seat.

[0021] Furthermore, the floating clamping part includes a connecting plate, on which a single-acting cylinder is fixedly connected, and the output shaft of the single-acting cylinder is fixedly connected to the mounting plate; a plurality of guide posts are also fixedly connected to the connecting plate, and the other ends of the guide posts relative to the connecting end of the connecting plate pass through the mounting plate and are slidably connected to the mounting plate; a clamping seat is fixedly connected to the connecting plate, and the clamping seat has a through hole along its axis; the oil injection rod is fixedly connected to the lower surface of the mounting plate, and the oil injection rod is slidably connected in the through hole of the clamping seat.

[0022] Beneficial effects: With this solution, before the floating clamping part is compressed, the single-acting cylinder is in working condition, meaning its output shaft lifts the mounting plate. When the main drive mechanism drives the injection rod to spray oil onto the hole wall of the part, the main drive cylinder continues to push the mounting plate downwards, causing the injection rod to slide downwards relative to the clamping seat. At this time, the output shaft of the single-acting cylinder is compressed by the mounting plate, meaning the floating clamping part is in a compressed state. The connecting plate remains stationary under the pressure transmitted by the single-acting cylinder, and the clamping seat presses the part against the placement seat. During the downward movement of the mounting plate, it simultaneously slides on several columns and guide columns. These columns and guide columns provide a dual guiding effect, further ensuring that the mounting plate always moves vertically, thus ensuring that the injection rod moves vertically within the part's hole and preventing collision between the injection rod and the hole wall. The floating clamping part has a simple and effective structure. It can not only effectively press the parts against the mounting base to prevent the parts from shifting during the oil spraying process, but also enable the oil spray rod to move vertically downward in the part hole to spray oil onto the hole wall, thereby ensuring that the oil spray rod sprays oil evenly onto the inner wall of the part.

[0023] Furthermore, the placement base includes a base plate and a sealing post disposed on the base plate, the sealing post being aligned with the oiling hole of the part; the connecting plate is provided with a plurality of plugs, the plurality of plugs being aligned with the side hole of the part.

[0024] Beneficial effects: This solution involves installing sealing posts aligned with the oiling holes of the parts on the base plate of the placement seat. When the parts are placed on the placement seat, the sealing posts contact the lower end of the oiling holes. When the main drive mechanism drives the clamping seat to contact the upper end of the oiling holes and press the parts firmly against the placement seat, the sealing posts and clamping seat cooperate to fix the position of the parts at the oiling holes. This helps ensure the positional stability of the oiling holes during the oiling process, thus guaranteeing the oiling effect. Several plugs aligned with the side holes of the parts are installed on the lower surface of the connecting plate. As the connecting plate moves down until the clamping seat presses against the parts, the plugs block the side holes, preventing oil from overflowing from the side holes and forming oil stains on the part surface, thus affecting the appearance of the parts.

[0025] Furthermore, the base plate is provided with a number of positioning posts along the circumference of the sealing posts, and the connecting plate is provided with a number of pressure rods along the circumference of the pressing seat.

[0026] Beneficial effects: By using this solution, several positioning posts are set around the sealing posts on the base plate. The parts are aligned with the positioning posts and placed on the placement seat, which can accurately place the parts in the processing position, which is beneficial for accurate oiling of the parts in the future. In addition, several pressure rods are set around the pressure seat on the connecting plate. When the pressure seat presses the parts against the sealing posts at the oiling holes of the parts, several positioning posts contact the bottom surface of the parts, and several pressure rods contact the top surface of the parts. This fixes the position of the parts other than the oiling holes, further improving the positional stability of the parts and preventing the parts from shifting during the oiling process, which would affect the oiling effect.

[0027] Furthermore, the oil supply assembly includes a throttle valve and a gas-liquid two-phase atomizer. The inlet of the throttle valve is connected to an oil inlet pipe, and the other end of the oil inlet pipe is connected to an oil tank. The oil inlet of the gas-liquid two-phase atomizer is connected to the outlet of the throttle valve. The air inlet of the gas-liquid two-phase atomizer is connected to an air source. The outlet of the gas-liquid two-phase atomizer is connected to an oil outlet pipe, and the other end of the oil outlet pipe is connected to an oil passage.

[0028] Beneficial effects: This solution incorporates a throttle valve in the oil supply assembly to control the oil flow rate in the oil passages, thereby controlling the spraying efficiency of the injector to adapt to the size of the parts and the required spray volume, improving the spraying effect on the orifice walls of the parts. The inclusion of a gas-liquid two-phase atomizer in the oil supply assembly atomizes the oil before it is sprayed onto the orifice walls, ensuring that the oil sprayed onto the orifice walls consists of atomized small particles. This improves the uniformity of the spray and avoids excessive spraying and waste. A two-phase gas-liquid atomizer is used. When spraying oil onto the orifice wall of a part, both the oil inlet and air inlet of the atomizer are opened simultaneously, and oil atomization is achieved by mixing air. After spraying the part, the oil inlet is closed, while the air inlet remains open. Air is circulated into the spray rod through the oil outlet pipe, and the spray rod blows air onto the orifice wall of the part. This removes excess oil from the orifice wall, leaving only a thin oil film, preventing excessive oil from adhering to the orifice wall and flowing to non-orifice areas or other objects during handling and / or storage, thus forming oil stains. Furthermore, it accelerates the drying of the oil on the orifice wall, preventing oil on the upper part of the orifice wall from flowing to the lower part under its own gravity, which would result in uneven oil coating on the upper and lower parts of the orifice wall.

[0029] Furthermore, the oil outlet pipe is a flexible hose, and the oil outlet pipe is connected to the oil passage via a rotary joint.

[0030] Beneficial effects: By adopting this solution, the oil outlet pipe is set as a flexible hose, which provides a certain length for the injector rod to move downward within the part hole, thus meeting the vertical movement requirements of the injector rod. The oil outlet pipe is connected to the oil passage through a rotary joint. When the rotating device drives the injector rod to rotate, the rotary joint can rotate in the opposite direction to the rotation of the injector rod, thereby keeping the absolute position of the rotary joint unchanged and preventing the oil outlet pipe from twisting and becoming blocked due to the rotation of the injector rod.

[0031] Furthermore, a conical groove is provided on the sealing column, and the bottom end of the conical groove sealing column is connected to a recovery oil pipe, the other end of which is connected to an oil tank.

[0032] Beneficial effects: By using this solution, a conical groove is opened on the sealing column, and the bottom end of the conical groove is connected to the oil tank through a recovery oil pipe. When the oil spray rod sprays oil onto the wall of the part hole, the excess oil sprayed onto the wall of the part hole, as well as the oil blown off the wall of the part hole when the oil spray rod blows air onto the wall of the part hole, will drip into the conical groove and then flow back into the oil tank through the recovery oil pipe, thus realizing the recovery of excess oil, which helps to save oil and reduce costs. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of a part in an embodiment of the present invention.

[0034] Figure 2 This is a schematic diagram of the overall structure of an embodiment of the present invention.

[0035] Figure 3 This is a left view of the overall structure of an embodiment of the present invention.

[0036] Figure 4 for Figure 3 A sectional view of section AA in the middle.

[0037] Figure 5 for Figure 2 A magnified view of part B in the image.

[0038] Figure 6 for Figure 4 A magnified view of part C.

[0039] Figure 7 This is a schematic diagram of the left-side structure of the rotating device in an embodiment of the present invention.

[0040] Figure 8 This is a front view of the rotating device in an embodiment of the present invention. Detailed Implementation

[0041] The following detailed description illustrates the specific implementation method:

[0042] The reference numerals in the accompanying drawings include:

[0043] Part 100, Oiling Hole 101, Side Hole 102, Positioning Hole 103, Frame 1, Main Drive Mechanism 2, Column 21, Top Plate 22, Main Drive Cylinder 23, Mounting Plate 24, Floating Pressing Part 3, Connecting Plate 31, Single-Acting Cylinder 32, Guide Column 33, Limiting Block 34, Support Plate 35, Transmission Hole 351, Injection Rod 4, Oil Passage 42, Injection Hole 43, Rotary Joint 44, Bearing Seat 45, Bearing 46, Rotating Device 5, Motor 5 1. Drive wheel 52. Belt 53. Driven wheel 54. Oil supply assembly 6. Oil tank 61. Oil inlet pipe 62. Throttle valve 63. Gas-liquid two-phase atomizer 64. Oil outlet pipe 65. Pressing seat 7. First sealing ring 71. Pressure rod 72. Plug 73. Tubular cylinder 74. Working hole 76. Placement seat 8. Sealing column 81. Second sealing ring 82. Positioning column 83. Base plate 84. Recovery assembly 9. Conical groove 91. Recovery oil hole 92. Recovery oil pipe 93.

[0044] Implementation, for example, attached Figures 1 to 8 As shown:

[0045] A parts oiling machine, used for... Figure 1 The oiling hole 101 in the middle position of the part 100 is used for oiling operation. Side holes 102 are opened on both sides of the oiling hole 101, and the side holes 102 are connected to the oiling hole 101. Several positioning holes 103 are also opened at the edge of the part 100.

[0046] A parts oiling machine, comprising, for example Figure 2 The frame 1 shown has a drive assembly and a placement seat 8 for placing parts 100 mounted on it. The drive assembly is located above the placement seat 8. The drive assembly includes a main drive mechanism 2 and a floating clamping part 3, which is connected to the output end of the main drive mechanism 2. An oil injection rod 4 and a rotating device 5 for driving the oil injection rod 4 to rotate are mounted on the output end of the main drive mechanism 2. The oil injection rod 4 is connected to an oil supply assembly 6 and is vertically slidably connected to the floating clamping part 3. Both the lower end face of the floating clamping part 3 and the upper end face of the placement seat 8 are provided with sealing rings.

[0047] In use, the part 100 is first placed on the placement seat 8 manually or by a robotic arm. Then, the drive assembly is started. After the drive assembly is started, the main drive mechanism 2 enters the working state. The main drive mechanism 2 first drives the floating clamping part 3 to move downward until the floating clamping part 3 presses the part 100 against the placement seat 8, thus fixing the position of the part 100. The main drive mechanism 2 continues to drive the oil injection rod 4 to move downward, so that the oil injection rod 4 slides vertically relative to the floating clamping part 3, and then the oil injection rod 4 extends into the oil injection hole 101 of the part 100 and moves downward within the oil injection hole 101. At this time, the floating clamping part 3 is compressed by the main drive mechanism 2. During the downward sliding of the oil injection rod 4 relative to the floating clamping part 3, the rotating device 5 drives the oil injection rod 4 to rotate around its own axis, and the oil supply assembly 6 supplies oil to the oil injection rod 4. The oil injection rod 4 rotates and moves downward within the oiling hole 101, spraying oil onto the wall of the oiling hole 101. During the process of the oil spraying rod 4 spraying oil onto the oiling hole 101, a "sealed space" is formed inside the oil spraying hole 101 of the part 100 because both the lower end face of the floating clamping part 3 and the upper end face of the placement seat 8 are equipped with sealing rings. Therefore, the oil spraying rod 4 cannot spray oil onto the wall of the oiling hole 101 of the part 100. After the oil spraying is completed, the rotating device 5 and the oil supply assembly 6 are turned off. The main drive mechanism 2 drives the oil spraying rod 4 to slide vertically upward relative to the floating clamping part 3 until the floating clamping part 3 is no longer compressed. Then, the main drive mechanism 2 drives the oil spraying rod 4 and the floating clamping part 3 to return to their original positions. At this time, the position of the part 100 is released, and the part 100 is then removed from the placement seat 8 manually or by a robot.

[0048] like Figure 2 As shown, the main drive mechanism 2 includes several columns 21 vertically fixed to the frame 1 by screws. A top plate 22 is screwed to the other end of each column 21 relative to the end connected to the frame 1. A main drive cylinder 23 is screwed to the upper surface of the top plate 22. The output shaft of the main drive cylinder 23 passes through the top plate 22 and is clearance-fitted with it. A mounting plate 24 is connected to the output shaft of the main drive cylinder 23. Several first through holes are opened on the mounting plate 24, and a first sleeve is inserted into each of the first through holes. The first sleeve is fixedly connected to the mounting plate 24 by screws. Each first sleeve is fitted onto one of the columns 21, and the mounting plate 24 is slidably connected to the columns 21 through the first sleeves.

[0049] The floating clamping part 3 includes, for example, Figure 5The connecting plate 31 shown has two single-acting cylinders 32 fixedly connected to its upper surface by screws. These two single-acting cylinders 32 are symmetrically arranged on the connecting plate 31 along the axis of the output shaft of the main drive cylinder 23. The output shaft of each single-acting cylinder 32 is fixedly connected to the lower surface of the mounting plate 24 by screws. In this embodiment, the single-acting cylinder 32 is a single-acting spring-return cylinder. Several guide posts 33 are fixedly connected to the upper surface of the connecting plate 31 by screws. Several second through holes are opened on the mounting plate 24 corresponding to the positions of the guide posts 33. Second sleeves are inserted into the second through holes and fixedly connected to the mounting plate 24 by screws. The other end of the guide post 33 relative to its connection end with the connecting plate 31 passes through the second sleeve and slides through the mounting plate 24. A limit block 34 is fixedly connected to the other end of the guide post 33 relative to its connection end with the connecting plate 31 by screws to prevent the guide post 33 from detaching from the mounting plate 24, thus breaking its sliding relationship with the mounting plate 24 and losing its guiding function for the vertical movement of the connecting plate 31.

[0050] A clamping seat 7 is screwed and fixed to the lower surface of the connecting plate 31. The clamping seat 7 has openings along its axis as shown in the figure. Figure 6 The working hole 76 shown penetrates the upper and lower surfaces of the clamping seat 7. A first sealing ring 71 is embedded in the lower surface of the clamping seat 7, and the first sealing ring 71 is coaxially arranged with the working hole 76. The left and right sides of the lower surface of the connecting plate 31 are fixedly connected with screws as shown. Figure 5 The tubular cylinder 74 shown has a plug 73 screwed onto its output shaft. The plug 73 is aligned with the side hole 102 of the part 100 to prevent atomized oil and gas from spraying out from the side hole 102 during the oiling process of the oiling hole 101. Several pressure rods 72 are screwed onto the lower surface of the connecting plate 31. The pressure rods 72 are arranged along the axial direction of the clamping seat 7.

[0051] Combination Figure 7 and Figure 8 As shown, a support plate 35 is vertically fixed to the lower surface of the mounting plate 24 by screws. The support plate 35 has a transmission hole 351. An injection rod 4 and a rotating device 5 are respectively mounted on both sides of the support plate 35. The rotating device 5 includes a motor 51 fixedly connected to one side of the support plate 35 by screws, and a drive wheel 52 is fixedly connected to the output shaft of the motor 51. A bearing seat 45 is fixedly connected to the other side of the support plate 35 by screws. The bearing seat 45 has a mounting hole penetrating the upper and lower surfaces, and a bearing 46 is fixedly installed in the mounting hole. The injection rod 4 is inserted into the bearing 46, and the injection rod 4 is rotatably connected to the bearing seat 45 through the bearing 46. A driven wheel 54 is fixedly connected to the outer wall of the injection rod 4. The driven wheel 54 is coaxial with the injection rod 4 and is driven by the drive wheel 52 through a belt 53. The inside of the injection rod 4 has openings as shown in the diagram. Figure 6The oil passage 42 shown has a rotary joint 44 rotatably connected to the top of the fuel injector 4. The connection end of the rotary joint 44 and the fuel injector 4 is connected to the oil passage 42. The bottom side wall of the fuel injector 4 has several fuel injection holes 43 circumferentially opened, and all of the fuel injection holes 43 are connected to the oil passage 42.

[0052] Oil supply component 6 includes, for example Figure 4 The oil tank 61 shown is installed at the bottom of the frame 1. There can be one or two oil tanks 61. When there are two, each oil tank 61 includes a recovery cylinder and a supply cylinder. In this embodiment, there is one oil tank 61. The oil outlet of the oil tank 61 is connected to the oil inlet pipe 62 of the spray bar 4. The other end of the oil inlet pipe 62 is connected to... Figure 5 The throttle valve 63 shown has its inlet connected to the oil tank 61 via an oil inlet pipe 62. The outlet of the throttle valve 63 is connected to a gas-liquid two-phase atomizer 64. The oil inlet of the gas-liquid two-phase atomizer 64 is connected to the throttle valve 63, and the air inlet of the gas-liquid two-phase atomizer 64 is connected to an air source. Both the throttle valve 63 and the gas-liquid two-phase atomizer 64 are mounted on a mounting plate 24. The mounting plate 24 has pipe holes penetrating its upper and lower surfaces. The outlet of the gas-liquid two-phase atomizer 64 is connected to an oil outlet pipe 65, and the other end of the oil outlet pipe 65 passes through the pipe holes and connects to a rotary joint 44.

[0053] The placement base 8 includes a base plate 84 screwed to the frame. A sealing post 81 is screwed to the base plate 84. The sealing post 81 is coaxially arranged with the clamping seat 7. A second sealing ring 82 is fixedly embedded in the upper end face of the sealing post 81. The second sealing ring 82 is positioned opposite to the first sealing ring 71. When the part 100 is pressed onto the placement base 8 by the clamping seat 7, its bottom contacts the second sealing ring 82, and its top contacts the first sealing ring 71 on the clamping seat 7, thus creating a "sealed" space for the oiling hole 101 in the middle of the part 100. Several positioning posts 83 are also screwed to the base plate 84, and these positioning posts 83 are arranged axially along the sealing post 81. The frame 1 also has... Figure 6 The recovery assembly 9 shown includes a conical groove 91 formed on the top of the sealing post 81. The upper opening size of the conical groove 91 matches the size of the oiling hole 101 of the part 100. The sealing post 81 also has a recovery oil hole 92 along its axis. The upper end of the recovery oil hole 92 communicates with the bottom of the conical groove 91, and the lower end of the recovery oil hole 92 is connected to a recovery oil pipe 93. Both the base plate 84 and the frame 1 have through holes penetrating their upper and lower surfaces. The other end of the recovery oil pipe 93, relative to the end connected to the recovery oil hole 92, passes through the through holes of the base plate 84 and the frame 1 respectively, and connects to the oil inlet of the oil tank 61.

[0054] Using the parts oiling machine of the present invention, the parts 100 are first placed on the placement seat 8 manually or by a robotic arm. During placement... Figure 1Align the positioning holes 103 of part 100 one by one. Figure 5 The positioning post 83 in the middle realizes the accurate placement of the part 100. At this time, the sealing post 81 supports the oiling hole 101 of the part 100 on it, and the second sealing ring 82 contacts the part 100 to seal the lower edge of the oiling hole 101 of the part 100. Then, the main drive cylinder 23 is activated, which pushes the mounting plate 24 downward along the column 21. At this time, the single-acting cylinder 32 is in the activated state. The single-acting cylinder 32 presses against the mounting plate 24 so that the mounting plate 24 and the connecting plate 31 do not move relative to each other. The connecting plate 31 also moves towards the part 100 under the push of the main drive cylinder 23 until the clamping seat 7 and several pressure rods 72 contact the part 100 and press the part 100 against the sealing column 81 and the positioning column 83. At this time, the first sealing ring 71 contacts the part 100 and seals the upper edge of the oiling hole 101 of the part 100. The second sealing ring 82 contacts the part 100 and seals the lower edge of the oiling hole 101 of the part 100, thereby forming a "sealed" space in the oiling hole 101 of the part 100. During the downward movement of the connecting plate 31, the tubular cylinder 74 fixedly connected to the lower surface of the connecting plate 31 also moves downward. When the clamping seat 7 and the pressure rod 72 press against the part 100, the output shaft of the tubular cylinder 74 aligns with the side hole 102 of the part 100. Then, the tubular cylinder 74 starts to drive the plug 73 to move towards the side hole 102 of the part 100 until the plug 73 blocks the side hole 102 of the part 100.

[0055] After the position of part 100 is fixed, the main drive mechanism 2 continues to drive the mounting plate 24 to move downward along the column 21. At this time, the single-acting cylinder 32 loses its supporting force on the mounting plate 24 and is pushed by the main drive cylinder 23 to squeeze the mounting plate 24. The piston rod of the single-acting cylinder 32 retracts downward, and the mounting plate 24 slides downward on several guide columns 33. The oil injection rod 4 and the rotating device 5 also continue to follow the mounting plate 24 downward. The bottom end of the oil injection rod 4 passes through the working hole 76 of the clamping seat 7 and enters the oiling hole 101 of part 100, and continues to move downward in the oiling hole 101 until it reaches the top of the conical groove 91. As the bottom end of the fuel injector 4 moves downward within the oiling hole 101 of the part 100, the oil inlet and air inlet of the gas-liquid two-phase atomizer 64 open simultaneously. The gas-liquid two-phase atomizer 64 delivers the atomized oil to the oil passage 42 of the fuel injector 4 through the oil outlet pipe 65, and then sprays it onto the wall of the oiling hole 101 through the fuel injection hole 43 opened on the side wall of the bottom end of the fuel injector 4. The throttle valve 63 controls the amount of oil in the above process. The motor 51 of the rotating device 5 starts, and the motor 51 drives the drive wheel 52 to rotate. The drive wheel 52 drives the driven wheel 54 to rotate through the belt 53, which in turn drives the fuel injector 4 to rotate around its own axis. As the bottom end of the fuel injector 4 moves from the upper edge of the oiling hole 101 of the part 100 to the lower edge of the oiling hole 101, the fuel injector 4 always rotates around its own axis, improving the uniformity of oiling the wall of the oiling hole 101 of the part 100.

[0056] During the oiling process of the oiling hole 101 of part 100, the plug 73 blocks the side hole 102 that communicates with the oiling hole 101, preventing oil sprayed from the oil spray hole 43 of the oil spray rod 4 from splashing onto the outer surface of part 100 through the side hole 102 and affecting the appearance of part 100. At the same time, the first sealing ring 71 and the second sealing ring 82 seal the upper and lower edges of the oiling hole 101 respectively, forming a sealed environment inside the oiling hole 101 and preventing oil from overflowing from the edge of the oiling hole 101.

[0057] After the oiling hole 101 of part 100 is coated with oil, the oil inlet and air inlet of the gas-liquid two-phase atomizer 64 are closed, the motor 51 stops working, the output shaft of the main drive cylinder 23 retracts and drives the mounting plate 24 to move upward, thereby driving the oil injection rod 4 to move upward until the bottom end of the oil injection rod 4 rises from the lower edge of the oiling hole 101 to the upper edge of the oiling hole 101. Subsequently, the air inlet of the gas-liquid two-phase atomizer 64 opens, the motor 51 restarts, and the output shaft of the main drive cylinder 23 extends again, driving the mounting plate 24 downward, which in turn drives the injection rod 4 downward. At this time, pure gas is sprayed out from the injection hole 43 of the injection rod 4. The injection rod 4 rotates around its own axis and moves downward within the oiling hole 101 of the part 100, blowing air onto the wall of the oiling hole 101 from top to bottom, blowing away excess oil adhering to the wall of the oiling hole 101 into the conical groove 91, leaving only a layer of oil film to protect the wall of the oiling hole 101. The oil blown into the conical groove 91 and the oil dripping into the conical groove 91 during the injection process flow into the oil tank 61 through the oil recovery pipe 93 for recycling.

[0058] After air is blown into the oiling hole 101 of part 100, the air inlet of the gas-liquid two-phase atomizer 64 is closed, the motor 51 stops working, and the single-acting cylinder 32 starts to push the mounting plate 24 upward relative to the connecting plate 31 until the distance between the mounting plate 24 and the connecting plate 31 is fixed. Then, the main drive cylinder 23 drives the mounting plate 24 to continue to move upward, thereby driving the connecting plate 31 and other structures connected to the connecting plate 31 to move upward until the entire part oiling machine returns to its initial state. At this time, the position of part 100 is released, and the oiled part 100 is then removed from the placement seat 8 by manual labor or a robotic arm.

[0059] The above descriptions are merely embodiments of the present invention, and common knowledge regarding specific structures and characteristics in the solutions is not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention, and these modifications and improvements should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A drive assembly for preventing parts from shifting during oil spraying, characterized in that: The device includes a main drive mechanism, a floating clamping part, and a placement seat for placing parts. The floating clamping part is connected to the output end of the main drive mechanism, and an oil injection rod is mounted on the output end of the main drive mechanism, with the oil injection rod slidably connected vertically to the floating clamping part. The main drive mechanism includes several columns, with a top plate fixedly connected to the top of each column. A main drive cylinder is fixedly connected to the top plate, and a mounting plate is fixedly connected to the output shaft of the main drive cylinder. The mounting plate is slidably connected to the columns, and the floating clamping part is connected to the mounting plate. The floating clamping part includes a connecting plate, with a single-acting cylinder fixedly connected to the connecting plate. The output shaft of the single-acting cylinder is fixedly connected to the mounting plate. A clamping seat is fixedly connected to the lower side of the connecting plate, pressing the parts against the placement seat. The clamping seat has a through hole along its axis. The oil injection rod is fixedly connected to the lower surface of the mounting plate and slidably connected within the through hole of the clamping seat.

2. The drive assembly for preventing displacement of parts during oil spraying according to claim 1, characterized in that: The connecting plate is also fixedly connected with several guide posts, the other end of which passes through the mounting plate and is slidably connected to the mounting plate relative to the end of the connecting plate.

3. The drive assembly for preventing displacement of parts during oil spraying according to claim 2, characterized in that: The connecting plate is provided with several pressure rods along the circumference of the pressure seat.

4. The drive assembly for preventing displacement of parts during oil spraying according to any one of claims 2-3, characterized in that: The lower surface of the clamping seat is fitted with a first sealing ring.

5. The drive assembly for preventing displacement of parts during oil spraying according to claim 4, characterized in that: The connecting plate is provided with several plugs, which are aligned with the side holes of the parts.

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