A vacuum pump parts processing surface treatment device and processing method

Abstract

The invention relates to the field of vacuum pump parts processing, and specifically to a vacuum pump parts processing surface treatment device and a processing method thereof, comprising a feeding conveyor belt, and a material transfer unit is provided on one side of the feeding conveyor belt, and a grabbing assembly is provided on the material transfer unit, and the grabbing assembly is used to grab the vacuum pump parts on the feeding conveyor belt, and a painting assembly, a drying assembly and a material unloading assembly are sequentially provided in a circular array on the outer side of the material transfer unit; in the present invention, the loading, painting, drying and unloading links of the pump cover are carried out in sequence according to the assembly line, and the adjacent links are closely coordinated to reduce the transition time and improve the efficiency, and in the loading, painting, drying and unloading links, there will be manual participation in the loading link, but there will be no manual participation in the painting, drying and unloading links, that is, the proportion of manual participation is low, and manual participation is reduced as much as possible, and manual loading is carried out at a safe distance from the material transfer unit to ensure safe production.

Description

Technical Field

[0001] The invention relates to the field of vacuum pump part processing, in particular to a vacuum pump part processing surface processing device and a processing method thereof. Background Art

[0002] A vacuum pump is a device used to create, improve and maintain a vacuum in a closed space. It extracts gas from the container through various physical, chemical or physical and chemical methods to reduce the gas pressure. Vacuum pumps are widely used in scientific research, industrial production, medical equipment and other fields.

[0003] Vacuum pumps are widely used and are also used in some harsh environments, such as the treatment of some industrial waste gas and wastewater. The corrosiveness of the waste gas and wastewater will cause corrosion on the surface of the vacuum pump. In severe cases, the vacuum pump is damaged and stops running. For this reason, some protective measures need to be taken for the vacuum pump. The most common measure is to apply protective paint on the vacuum pump parts to isolate the waste gas and wastewater.

[0004] The pump cover is one of the components of the vacuum pump. The pump cover and the pump rear shell form a cavity for gas flow. There are air inlet and air outlet pipes on the pump cover. When spraying paint, it is necessary to consider that some parts of the pump cover do not need to be painted, such as the inner surface of the pump cover and the inside of the air inlet and air outlet pipes, so as to avoid paint blockage affecting gas flow and the rotation of the impeller in the pump cover.

[0005] At present, the painting process of the pump cover is slow due to the method or painting equipment. The coordination between adjacent links from pump cover loading, painting, drying and unloading is not tight enough. The transition of the pump cover from the previous link to the next link takes a long time, which affects the overall production efficiency of the vacuum pump, and is difficult to cope with large-scale vacuum pump production operations.

[0006] Therefore, in view of the above problems, a vacuum pump parts processing surface treatment device and a processing method thereof are proposed. Summary of the invention

[0007] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0008] The technical solution adopted by the present invention to solve the technical problem is as follows: a vacuum pump parts processing surface treatment device described in the present invention comprises a feeding conveyor belt, and a material transfer unit is provided on one side of the feeding conveyor belt, and a grabbing assembly is provided on the material transfer unit, and the grabbing assembly is used to grab the vacuum pump parts on the feeding conveyor belt, and a painting assembly, a drying assembly and a material unloading assembly are sequentially provided in a circular array on the outer side of the material transfer unit;

[0009] The painting assembly is used to spray paint on the surface of the vacuum pump parts;

[0010] The drying component is used to dry and solidify the paint sprayed on the surface of the vacuum pump parts;

[0011] The unloading assembly is used to unload the vacuum pump parts on the grabbing assembly, and a unloading conveyor belt is provided below the unloading assembly, and the unloading conveyor belt is used to convey the vacuum pump parts away from the transfer unit.

[0012] Preferably, the material transfer unit comprises a rotating shaft, four electric push rods are evenly arranged on the outer ring of the rotating shaft, a grab assembly is arranged at the output end of the electric push rod, and the grab assembly comprises a connecting plate, one side wall of the connecting plate is fixedly connected to the output end of the electric push rod, and both ends of the other side wall of the connecting plate are symmetrically fixed with plug rods, and the plug rods are used to be plugged into the air inlet pipe and the air outlet pipe of the vacuum pump parts;

[0013] The surface of the feeding conveyor belt is provided with multiple groups of limit blocks, the two limit blocks in each group are symmetrically arranged, and each limit block is in the shape of the number "7", a vacuum pump part is placed between the two limit blocks in each group, and the fixing ear top on the vacuum pump part is at the corner position inside the limit block.

[0014] Preferably, the painting assembly comprises a motor, the output end of the motor is fixedly connected with a screw rod, the screw rod is threadedly connected with an upper cover plate and a lower cover plate, and opposite side walls of the upper cover plate and the lower cover plate are respectively provided with a paint spraying hole, and the paint spraying hole on the lower cover plate is arranged at an eccentric position of the lower cover plate and is opposite to the air inlet pipe and the air outlet pipe of the vacuum pump part;

[0015] The drying component comprises an arc-shaped plate, and a plurality of fan groups are arranged on the lower surface of the arc-shaped plate.

[0016] Preferably, each of the electric push rods is provided with an air supply assembly, the air supply assembly includes an air supply pipe, one end of the air supply pipe is connected to the inside of a rotating shaft which is arranged in a hollow shape, and the lower end of the rotating shaft rotates and is connected to an air intake hose;

[0017] The other end of the air supply pipe extends toward the plug-in rod, and a plurality of grooves are provided on the outer surface of the plug-in rod. A capsule is provided in the groove, and the capsule is connected to the air supply pipe.

[0018] Preferably, a sleeve is provided on the upper surface of the end of each electric push rod, a sliding rod is slidably connected in the sleeve, a touch switch is provided at the end of the sliding rod close to the rotating shaft, the touch switch No. 1 is used to control the electric valve arranged on the air supply pipe, and the electric valve is arranged on the electric push rod, and a spring is provided on the outer ring of the other end of the sliding rod, the integral end of the spring is pressed on the sleeve, the other end of the spring is fixedly connected to the other end of the sliding rod, and a protective plate is also fixedly connected to the output end of the electric push rod, and the side wall of the protective plate is opposite to the other end of the sliding rod.

[0019] Preferably, the unloading assembly includes a base plate, two cylinders are provided on the upper surface of the base plate, the output ends of the cylinders penetrate downward through the base plate, and the output ends of the cylinders are used to limit the movement of vacuum pump parts, and a No. 2 touch switch is provided on one side of the lower surface of the base plate, and the No. 2 touch switch is used to control the start and stop of the cylinders.

[0020] Preferably, the outer ring of the rotating shaft is also provided with a disk body, a rotating groove is opened at an eccentric position on the lower surface of the disk body, a U-shaped push rod is provided between the rotating groove and the end of the electric push rod, one end of the push rod is fixed to the electric push rod, and the other end of the push rod is slidably connected in the rotating groove.

[0021] Preferably, each of the electric push rods is provided with a conductive rod, which is arranged close to the rotating shaft, and the end of the conductive rod is slidably connected to a ring-shaped conductive groove opened on the upper surface of the disk body.

[0022] Preferably, the lower end of the conductive rod is rotatably connected to a swivel, a plurality of ball grooves are provided on the outer surface of the swivel, and balls are rotatably connected in the ball grooves.

[0023] A method for processing a surface of a vacuum pump part, the method comprising the above-mentioned device for processing a surface of a vacuum pump part, and the method comprising the following steps:

[0024] S1: Material preparation: grinding, pickling and cleaning the finished vacuum pump parts, drying them and waiting for loading and painting;

[0025] S2: Loading: vacuum pump parts are placed on the feeding conveyor and transferred to one side of the transfer unit. Then, the vacuum pump parts are grabbed by the grabbing component and the air supply component and transferred to the painting process.

[0026] S3: Spraying paint, spraying the paint evenly on the outer surface of the vacuum pump parts through the spraying component, and then sending it to the drying stage through the transfer unit;

[0027] S4: Drying: The paint on the outer surface of the vacuum pump parts is dried and solidified through the drying component, and then sent to the unloading link through the transfer unit;

[0028] S5: unloading, the vacuum pump parts are unloaded from the gripping assembly to the unloading conveyor belt through the unloading assembly and the air supply assembly, and the vacuum pump parts are conveyed away from the vacuum pump parts processing surface treatment device.

[0029] The present invention is beneficial in that:

[0030] 1. In the present invention, the loading, painting, drying and unloading links of the pump cover are carried out in sequence according to the assembly line, and the adjacent links are closely coordinated to reduce the transition time and improve efficiency. In the loading, painting, drying and unloading links, there will be manual participation in the loading link, but there will be no manual participation in the painting, drying and unloading links, that is, the proportion of manual participation is low, and manual participation is reduced as much as possible. In addition, manual loading is carried out at a safe distance from the material transfer unit to ensure safe production.

[0031] 2. In the present invention, an air supply assembly is provided, and the air supply assembly can inject gas into the bladder. The bladder expands and supports the air inlet pipe and the air outlet pipe. The bladder gradually expands and is squeezed into the air inlet pipe and the air outlet pipe, thereby improving the stability between the grabbing assembly and the pump cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a first visual stereogram of the surface treatment device for vacuum pump parts processing in the present invention;

[0033] Figure 2 A second visual stereogram of the surface treatment device for processing vacuum pump parts in the present invention;

[0034] Figure 3 A third visual stereogram of the surface treatment device for vacuum pump parts in the present invention;

[0035] Figure 4 A top view of the surface treatment device for vacuum pump parts processing in the present invention;

[0036] Figure 5 It is a side view of the surface treatment device for processing vacuum pump parts in the present invention;

[0037] Figure 6 It is a three-dimensional diagram of the material transfer unit of the present invention;

[0038] Figure 7 is a three-dimensional diagram of the paint spraying assembly of the present invention;

[0039] Figure 8 It is a schematic diagram of the cooperation between the blanking component and the grabbing component in the present invention;

[0040] Fig. 9 A three-dimensional diagram of the plug-in rod in the present invention;

[0041] Fig.10 is a three-dimensional diagram of the conductive rod in the present invention;

[0042] Fig.11 is a three-dimensional diagram of the ejector rod in the present invention;

[0043] Fig.12 A top view of the pump cover processed in the present invention;

[0044] Fig.13 The present invention is a flow chart of the surface treatment method for vacuum pump parts.

[0045] In the figure: 101, pump cover; 102, air inlet pipe; 103, air outlet pipe; 1, feeding conveyor belt; 2, unloading conveyor belt; 3, rotating shaft; 4, electric push rod; 5, connecting plate; 6, plug rod; 7, limit block; 8, fixed ear; 9, motor; 10, screw rod; 11, upper cover plate; 12, lower cover plate; 13, painting hole; 14, arc plate; 15, air supply pipe; 16, groove; 17, capsule; 18, sleeve; 19, slide rod; 20, No. 1 touch switch; 21, electric valve; 22, spring; 23, protective plate; 24, base plate; 25, cylinder; 26, No. 2 touch switch; 27, disk; 28, rotating groove; 29, push rod; 30, conductive rod; 31, conductive groove; 32, swivel; 33, sphere. DETAILED DESCRIPTION

[0046] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0047] Reference Figure 1 - Fig.12 A vacuum pump parts processing surface treatment device comprises a feeding conveyor belt 1, and a material transfer unit is provided on one side of the feeding conveyor belt 1, and a grabbing assembly is provided on the material transfer unit, and the grabbing assembly is used to grab the vacuum pump parts on the feeding conveyor belt 1, and a painting assembly, a drying assembly and a material unloading assembly are sequentially provided on the outer side of the material transfer unit in a circular array;

[0048] The painting assembly is used to spray paint on the surface of the vacuum pump parts;

[0049] The drying component is used to dry and solidify the paint sprayed on the surface of the vacuum pump parts;

[0050] The unloading assembly is used to unload the vacuum pump parts on the grabbing assembly, and a unloading conveyor belt 2 is provided below the unloading assembly, and the unloading conveyor belt 2 is used to convey the vacuum pump parts away from the transfer unit;

[0051] In this embodiment, the vacuum pump part is the pump cover 101. Figure 1 The pump cover 101 is placed on the feeding conveyor belt 1, and the feeding conveyor belt 1 and the unloading conveyor belt 2 are driven by a servo motor, which can control the intermittent operation of the feeding conveyor belt 1 and the unloading conveyor belt 2 to realize the loading and unloading of the pump cover 101;

[0052] The specific working process of the vacuum pump parts processing surface treatment device is as follows:

[0053] Loading: The pump cover 101 is placed on the feeding conveyor belt 1 in sequence, and the feeding conveyor belt 1 transports the pump cover 101 to the position of the grabbing assembly, and the grabbing assembly executes and grabs the pump cover 101, and then the pump cover 101 is transferred to the position of the painting assembly by the rotation of the rotating shaft 3, wherein the rotating shaft 3 is also driven by a servo motor, and the rotating shaft 3 is intermittently driven to rotate by the servo motor. According to the material transfer unit designed in this embodiment, the rotating shaft 3 rotates by ninety degrees each time;

[0054] Painting: The pump cover 101 is located at the painting assembly position, and the painting assembly sprays paint on the surface of the pump cover 101 and the outer surfaces of the air inlet pipe 102 and the air outlet pipe 103 of the vacuum pump parts;

[0055] Drying: The rotating shaft 3 continues to rotate, and the pump cover 101 is transferred from the painting assembly position to the drying assembly position. The drying time is determined by the painting time, and the drying process mainly dries the paint sprayed on the surface of the pump cover 101 to a wet but not dripping state, so as to prevent the paint from dripping on the equipment or the ground and causing pollution. As for the subsequent thorough drying, it is completed by the subsequent air-drying step;

[0056] Unloading: the rotating shaft 3 continues to rotate, and the pump cover 101 is transferred from the drying assembly position to the unloading assembly position. At this time, the pump cover 101 is located above the unloading conveyor belt 2. The pump cover 101 is unloaded from the grabbing assembly to the unloading conveyor belt 2 through the unloading assembly. Finally, the pump cover 101 after painting is transported away from the vacuum pump parts processing surface treatment device through the unloading conveyor belt 2.

[0057] In the vacuum pump parts processing surface treatment device, the loading, painting, drying and unloading links of the pump cover 101 are carried out in sequence according to the assembly line, and the adjacent links are closely coordinated to reduce the transition time and improve efficiency. In the loading, painting, drying and unloading links, there will be manual participation in the loading link, but there will be no manual participation in the painting, drying and unloading links, that is, the proportion of manual participation is low, and manual participation is reduced as much as possible. During manual loading, there is a safe distance between the manual loading unit and the material transfer unit to ensure safe production.

[0058] Reference Figure 1 - Figure 6 The material transfer unit includes a rotating shaft 3, four electric push rods 4 are evenly arranged on the outer ring of the rotating shaft 3, a grab assembly is arranged at the output end of the electric push rod 4, and the grab assembly includes a connecting plate 5, one side wall of the connecting plate 5 is fixedly connected to the output end of the electric push rod 4, and the other two ends of the other side wall of the connecting plate 5 are symmetrically fixedly connected with plug rods 6, and the plug rods 6 are used to be plugged into the air inlet pipe 102 and the air outlet pipe 103 of the vacuum pump parts;

[0059] The surface of the feeding conveyor belt 1 is provided with a plurality of groups of limit blocks 7, the two limit blocks 7 in each group are symmetrically arranged, and each limit block 7 is in the shape of the number "7", a vacuum pump part is placed between the two limit blocks 7 in each group, and the fixing ear 8 on the vacuum pump part is pressed against the inner corner position of the limit block 7;

[0060] When the feeding conveyor belt 1 is paused, the grabbing assembly grabs the pump cover 101, and the prepared pump cover 101 is manually placed on the feeding conveyor belt 1. When the pump cover 101 is placed, the fixing ears 8 on both sides of the pump cover 101 are pressed against the inner corners of the limit blocks 7 through two adjacent limit blocks 7, so as to realize the loading positioning of the pump cover 101, which is helpful for the subsequent grabbing assembly to accurately grab the pump cover 101.

[0061] When the grabbing assembly is executed, the electric push rod 4 drives the plug-in rod 6 to move toward the pump cover 101 through the connecting plate 5. At this time, the two adjacent plug-in rods 6 are opposite to the ports of the air inlet pipe 102 and the air outlet pipe 103 of the pump cover 101. Finally, the plug-in rod 6 is plugged into the air inlet pipe 102 and the air outlet pipe 103. During the plugging process, the limit block 7 supports the fixed ear 8 of the pump cover 101, so that the plug-in rod 6 can be smoothly inserted into the air inlet pipe 102 and the air outlet pipe 103. After that, the output end of the electric push rod 4 is withdrawn, and the pump cover 101 moves toward the direction of the rotating shaft 3. Then the rotating shaft 3 rotates, and the grabbing assembly rotates the pump cover 101 to the position of the paint spraying assembly;

[0062] The air inlet pipe 102 and the air outlet pipe 103 can be taken away from the feeding conveyor belt 1 by the friction between the plug-in rod 6 and the air inlet pipe 102 and the air outlet pipe 103;

[0063] Reference Figure 1 - Figure 7 The painting assembly includes a motor 9, a screw rod 10 is fixedly connected to the output end of the motor 9, an upper cover plate 11 and a lower cover plate 12 are threadedly connected to the screw rod 10, and the upper cover plate 11 and the lower cover plate 12 are respectively provided with a paint spraying hole 13 on the opposite side walls, and the paint spraying hole 13 on the lower cover plate 12 is arranged at an eccentric position of the lower cover plate 12, and is opposite to the air inlet pipe 102 and the air outlet pipe 103 of the vacuum pump parts;

[0064] The drying assembly includes an arc-shaped plate 14, and a plurality of fan groups are provided on the lower surface of the arc-shaped plate 14;

[0065] When the pump cover 101 is transferred to the paint spraying assembly position, in order to reduce the pollution of the paint to the electric push rod 4, the electric push rod 4 is driven again, and the electric push rod 4 pushes the pump cover 101 to move away from the rotating shaft 3, that is, during the transfer process of the rotating shaft 3, the electric push rod 4 pushes away the pump cover 101 again. When the pump cover 101 is pushed away to a specified distance from the rotating shaft 3, the pump cover 101 is also transferred to between the upper cover plate 11 and the lower cover plate 12, and then the paint is sprayed;

[0066] The motor 9 is driven, and the motor 9 drives the screw rod 10 to rotate. The screw rod 10 drives the upper cover plate 11 and the lower cover plate 12 to approach each other at the same time, and the upper surface of the lower cover plate 12 will be attached to the lower end surface of the pump cover 101, and the downward opening of the pump cover 101 is blocked to prevent the paint from contaminating the inside of the pump cover 101. At the same time, the paint spraying hole 13 arranged on the lower cover plate 12 is opposite to the air inlet pipe 102 and the air outlet pipe 103 of the pump cover 101. The upper cover plate 11 is located above the pump cover 101. When spraying paint, the paint covers the surface of the pump cover 101, as well as the surfaces of the air inlet pipe 102 and the air outlet pipe 103. After the spraying paint is finished, the motor 9 drives the screw rod 10 to reverse, and the upper cover plate 11 and the lower cover plate 12 are synchronously away from each other and the pump cover 101. The spraying paint process is completed, and then drying is performed;

[0067] The drying process mainly dries the paint sprayed on the surface of the pump cover 101 to a wet but not dripping state, so as to prevent the paint from dripping on the equipment or the ground and causing pollution. As for the subsequent thorough drying, it is completed by the subsequent air-drying process;

[0068] The lower cover plate 12 is provided to cover the downward opening of the pump cover 101 to prevent the paint from contaminating the interior thereof, and a paint spraying hole 13 is partially provided on the lower cover plate 12. The paint spraying hole 13 cooperates with the paint spraying hole 13 on the upper cover plate 11 to spray paint the surfaces of the air inlet pipe 102 and the air outlet pipe 103, thereby spraying paint on the pump cover 101 in all directions.

[0069] Reference Figure 1 - Fig.12 Each of the electric push rods 4 is provided with an air supply assembly, which includes an air supply pipe 15, one end of which is connected to the interior of the rotating shaft 3 which is arranged in a hollow shape, and the lower end of the rotating shaft 3 rotates and is connected to an air intake hose;

[0070] The other end of the air supply pipe 15 extends toward the plug rod 6, and a plurality of grooves 16 are formed on the outer surface of the plug rod 6, and a capsule 17 is provided in the groove 16, and the capsule 17 is connected to the air supply pipe 15; the air supply pipe 15 is connected to the inside of the plug rod 6, and the inside of the plug rod 6 is connected to the capsule 17;

[0071] Considering that after the plug rod 6 is plugged into the air inlet pipe 102 and the air outlet pipe 103 for multiple times, the surface of the plug rod 6 will be worn, resulting in a clearance fit between the plug rod 6 and the air inlet pipe 102 and the air outlet pipe 103, and the clearance fit causes the pump cover 101 to deviate, that is, the centrifugal force generated when the shaft 3 rotates may cause the pump cover 101 to move away from the shaft 3. For this purpose, an air supply component is provided, and the air supply component can inject gas into the bladder 17, and the bladder 17 expands and supports the air inlet pipe 102 and the air outlet pipe 103, thereby overcoming the centrifugal force generated when the shaft 3 rotates, and improving the stability of the plug rod 6 with the air inlet pipe 102 and the air outlet pipe 103.

[0072] The lower end of the hollow shaft 3 cooperates with the air intake hose, and the shaft 3 can rotate while the air intake hose injects gas into the inside of the shaft 3, and the air intake hose is connected to an external air pump; when the inside of the sac 17 is not inflated, the sac 17 shrinks into the groove 16 and is lower than the surface of the plug-in rod 6; during the process of inserting the plug-in rod 6 into the air inlet pipe 102 and the air outlet pipe 103, the external air pump injects gas into the air supply pipe 15, and the gas is injected into the sac 17 along the air supply pipe 15, and the sac 17 gradually expands. When the plug-in rod 6 is fully plugged into place, the injection of a certain amount of gas into the sac 17 is also completed. At this time, the sac 17 is squeezed into the air inlet pipe 102 and the air outlet pipe 103, thereby improving the stability between the grabbing assembly and the pump cover 101.

[0073] Reference Figure 1 - Figure 8 , a sleeve 18 is provided on the upper surface of the end of each electric push rod 4, a slide rod 19 is slidably connected in the sleeve 18, a No. 1 touch switch 20 is provided at one end of the slide rod 19 close to the rotating shaft 3, and the No. 1 touch switch 20 is used to control the electric valve 21 provided on the air supply pipe 15, and the electric valve 21 is provided on the electric push rod 4, and a spring 22 is provided on the outer ring of the other end of the slide rod 19, one end of the spring 22 is pressed on the sleeve 18, and the other end of the spring 22 is fixedly connected to the other end of the slide rod 19, and a protective plate 23 is also fixedly connected to the output end of the electric push rod 4, and the side wall of the protective plate 23 is opposite to the other end of the slide rod 19;

[0074] The protective plate 23 is provided to shield the paint to reduce the paint pollution to the electric push rod 4, and to cooperate with the slide rod 19;

[0075] The protective plate 23 cooperates with the slide bar 19, and the electric push rod 4 pushes the plug rod 6 to insert into the air inlet pipe 102 and the air outlet pipe 103. During this process, the output end of the electric push rod 4 drives the protective plate 23 away from the rotating shaft 3. At this time, the protective plate 23 no longer squeezes the slide bar 19. The slide bar 19 moves toward the protective plate 23 under the elastic force of the spring 22 connected thereto. At the same time, one end of the slide bar 19 drives the No. 1 touch switch 20 to press against the sleeve 18. At this time, the No. 1 touch switch 20 is squeezed open, and the No. 1 touch switch 20 controls the electric valve 21 to open. The gas flows along the air supply pipe 15 and is injected into the capsule 17. During the injection into the capsule 17, the plug rod 6 has not been completely inserted into the air inlet pipe 102 and the air outlet pipe 103. When the plug rod 6 is inserted into place, a certain amount of gas is injected into the capsule 17.

[0076] The amount of gas injected can be determined by the air pressure in the bladder 17. For example, a pressure relief valve is provided on the air supply pipe 15. When the air pressure in the bladder 17 reaches a certain threshold, no more gas is injected into the bladder 17, and the excess gas is discharged from the pressure relief valve.

[0077] When the output end of the electric push rod 4 is withdrawn and reset, the output end of the electric push rod 4 drives the protective plate 23 to withdraw and move. At this time, the withdrawn movement of the protective plate 23 does not press against the slide bar 19, and the No. 1 touch switch 20 still presses against the sleeve 18. At the same time, the withdrawn movement of the protective plate 23 drives the pump cover 101 to move, thereby achieving the purpose of the fixed ear 8 on the pump cover 101 being separated from the limit block 7. The electric push rod 4 drives the pump cover 101 and will not be hindered by the limit block 7; and the capsule 17 still has sufficient gas, and the capsule 17 can stably press against the inner wall of the air inlet pipe 102 and the air outlet pipe 103 to ensure the stability between the plug-in rod 6 and the pump cover 101;

[0078] When the shaft 3 rotates and the electric push rod 4 is between the feeding conveyor belt 1 and the paint spraying assembly, the output end of the electric push rod 4 pushes the protective plate 23 to move away from the shaft 3 again. When the output end of the electric push rod 4 completes the pushing, the pump cover 101 is also transferred to the paint spraying assembly position, and then the painting and drying are completed in sequence, and the drying is completed to the unloading stage, and a certain amount of gas is always maintained in the capsule 17.

[0079] Reference Figure 1 - Fig.12 The blanking assembly includes a base plate 24, two cylinders 25 are arranged on the upper surface of the base plate 24, the output ends of the cylinders 25 penetrate the base plate 24 downward, and the output ends of the cylinders 25 are used to limit the movement of the vacuum pump parts, and a second touch switch 26 is arranged on one side of the lower surface of the base plate 24, and the second touch switch 26 is used to control the start and stop of the cylinder 25;

[0080] In the unloading process, the rotating shaft 3 cooperates with the grabbing assembly to transfer the pump cover 101 to the top of the unloading conveyor belt 2. At this time, the output end of the electric push rod 4 drives the protective plate 23 to retreat. The retreat of the protective plate 23 is the complete retreat of the output end of the electric push rod 4. The protective plate 23 can be pressed on the slide bar 19, and the No. 1 touch switch 20 no longer squeezes the sleeve 18. At this time, the No. 1 touch switch 20 is in an untriggered state and controls the electric valve 21 to be closed. The gas in the capsule 17 is discharged under the elastic squeezing of the capsule 17. At this time, the plug-in rod 6 is still stably plugged into the air inlet pipe 102 and the air outlet pipe 103, but the plug-in rod 6 is now in a gap fit between the air inlet pipe 102 and the air outlet pipe 103, and the protective plate 23 is retreating. The second touch switch 26 will also be triggered. The second touch switch 26 controls the output end of the cylinder 25 to move downward. The output end of the cylinder 25 is inserted into the fixed ears 8 on both sides of the pump cover 101 and moves backward to constrain the pump cover 101. After the downward movement of the output end of the cylinder 25 is completed, the fixed ears 8 on both sides of the pump cover 101 are pressed against the output end of the cylinder 25 to ensure that the output end of the cylinder 25 does not hinder the fixed ears 8. Then the electric push rod 4 continues to drive the plug-in rod 6 to move backward. Under the obstruction of the output end of the cylinder 25, the plug-in rod 6 is separated from the air inlet pipe 102 and the air outlet pipe 103, and the pump cover 101 falls on the unloading conveyor belt 2, and the painted pump cover 101 is transferred away from the vacuum pump parts processing surface treatment device;

[0081] After the pump cover 101 falls onto the unloading conveyor belt 2, the output end of the cylinder 25 quickly moves upward and resets, and the rotating shaft 3 drives the electric push rod 4 to rotate to a position opposite to the feeding conveyor belt 1;

[0082] In this embodiment, the No. 2 touch switch 26 controls the output end of the cylinder 25 to move downward. After the No. 2 touch switch 26 is squeezed and triggered by the protective plate 23, the output end of the cylinder 25 is controlled to move downward. After the output end moves downward, the cylinder 25 pauses for a period of time. The output end of the cylinder 25 is used to block the pump cover 101. After the pump cover 101 is blocked, the output end of the cylinder 25 is controlled by the background central system to move up and reset. As for the pause time after the output end of the cylinder 25 moves downward, it is controlled by the background central system, and the operation of the entire vacuum pump parts processing surface treatment device is controlled by the background central system to ensure stable operation of each link.

[0083] The design of the unloading component cooperates with the air supply component, so that the pump cover 101 can be unloaded steadily and smoothly without the need for manual intervention, and the unloading process is ensured to have a stable rhythm, ensuring that the production efficiency is in a stable state.

[0084] Reference Figure 1 - Fig.12The outer ring of the rotating shaft 3 is also provided with a disk body 27, and a rotating groove 28 is provided at an eccentric position on the lower surface of the disk body 27. A U-shaped push rod 29 is provided between the rotating groove 28 and the end of the electric push rod 4. One end of the push rod 29 is fixed to the electric push rod 4, and the other end of the push rod 29 is slidably connected in the rotating groove 28;

[0085] The disc 27 is used to support the electric push rod 4 and also to support the pump cover 101, thereby improving the stability of the electric push rod 4 rotating around the rotating shaft 3. The electric push rod 4 drives the push rod 29 to slide along the rotating groove 28. The other end of the push rod 29 is T-shaped, and the cross-section of the rotating groove 28 is also T-shaped, so that the push rod 29 can slide in the rotating groove 28. At the same time, the disc 27 can also exert an upward lifting force on the push rod 29, that is, it supports the electric push rod 4 and the pump cover 101.

[0086] Reference Figure 1 - Fig.12 Each of the electric push rods 4 is provided with a conductive rod 30, which is arranged close to the rotating shaft 3, and the end of the conductive rod 30 is slidably connected to the ring-shaped conductive groove 31 opened on the upper surface of the disk body 27;

[0087] The set disk 27 can also play a conductive role for the electric push rod 4. Considering the power-on use of the electric push rod 4, a conductive groove 31 is set on the disk 27, and a conductive rod 30 is set on the electric push rod 4. The structure is simple and not easy to be damaged. At the same time, the conductive groove 31 is set at the center of the disk 27, which can reduce the pollution of the conductive groove 31 by paint.

[0088] Reference Figure 1 - Fig.12 The lower end of the conductive rod 30 is rotatably connected to a swivel 32, and a plurality of ball grooves are provided on the outer surface of the swivel 32, and a ball 33 is rotatably connected in the ball groove;

[0089] The lower end of the conductive rod 30 is rotatably connected to the swivel 32. The swivel 32 can be slidably connected in the conductive slot 31 and can also rotate around the axis of the conductive rod 30, thereby improving the relative movement smoothness between the conductive rod 30 and the conductive slot 31. At the same time, a ball 33 is arranged on the swivel 32. When there is a relative sliding movement between the swivel 32 and the conductive slot 31, the sliding friction between the swivel 32 and the conductive slot 31 can be converted into rolling friction between the ball 33 and the conductive slot 31, thereby reducing wear.

[0090] Reference Fig.13 A surface treatment method for vacuum pump parts includes the following steps:

[0091] S1: Material preparation: grinding, pickling and cleaning the finished vacuum pump parts, drying them and waiting for loading and painting;

[0092] S2: Loading: vacuum pump parts are placed on the feeding conveyor belt 1 and transferred to one side of the transfer unit. Then, the vacuum pump parts are grabbed by the grabbing component in cooperation with the air supply component and transferred to the painting process.

[0093] S3: Spraying paint, spraying the paint evenly on the outer surface of the vacuum pump parts through the spraying component, and then sending it to the drying stage through the transfer unit;

[0094] S4: Drying: The paint on the outer surface of the vacuum pump parts is dried and solidified through the drying component, and then sent to the unloading link through the transfer unit;

[0095] S5: unloading, the vacuum pump parts are unloaded from the gripping assembly to the unloading conveyor belt 2 through the unloading assembly and the air supply assembly, and the vacuum pump parts are conveyed away from the vacuum pump parts processing surface treatment device.

[0096] Working principle:

[0097] The specific working process of the vacuum pump parts processing surface treatment device is as follows:

[0098] Loading: The pump cover 101 is placed on the feeding conveyor belt 1 in sequence, and the feeding conveyor belt 1 transports the pump cover 101 to the position of the grabbing assembly, and the grabbing assembly executes and grabs the pump cover 101, and then the pump cover 101 is transferred to the position of the painting assembly by the rotation of the rotating shaft 3, wherein the rotating shaft 3 is also driven by a servo motor, and the rotating shaft 3 is intermittently driven to rotate by the servo motor. According to the material transfer unit designed in this embodiment, the rotating shaft 3 rotates by ninety degrees each time;

[0099] Painting: The pump cover 101 is located at the position of the painting assembly, and the painting assembly sprays paint on the surface of the pump cover 101 and the outer surfaces of the air inlet pipe 102 and the air outlet pipe 103;

[0100] Drying: The rotating shaft 3 continues to rotate, and the pump cover 101 is transferred from the painting assembly position to the drying assembly position. The drying time is determined by the painting time, and the drying process mainly dries the paint sprayed on the surface of the pump cover 101 to a wet but not dripping state, so as to prevent the paint from dripping on the equipment or the ground and causing pollution. As for the subsequent thorough drying, it is completed by the subsequent air-drying step;

[0101] Unloading: The rotating shaft 3 continues to rotate to transfer the pump cover 101 from the drying component position to the unloading component position. At this time, the pump cover 101 is located above the unloading conveyor belt 2. The pump cover 101 is unloaded from the grabbing component to the unloading conveyor belt 2 through the unloading component. Finally, the painted pump cover 101 is transported away from the vacuum pump parts processing surface treatment device through the unloading conveyor belt 2.

[0102] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A surface treatment device for vacuum pump parts, characterized in that: It comprises a feeding conveyor belt (1), wherein a material transfer unit is provided on one side of the feeding conveyor belt (1), a grabbing assembly is provided on the material transfer unit, the grabbing assembly is used to grab vacuum pump parts on the feeding conveyor belt (1), and a painting assembly, a drying assembly and a material unloading assembly are sequentially provided in a circular array on the outer side of the material transfer unit; The painting assembly is used to spray paint on the surface of the vacuum pump parts; The drying component is used to dry and solidify the paint sprayed on the surface of the vacuum pump parts; The unloading component is used to unload the vacuum pump parts on the gripping component, and a unloading conveyor belt (2) is provided below the unloading component, and the unloading conveyor belt (2) is used to convey the vacuum pump parts away from the transfer unit; The material transfer unit comprises a rotating shaft (3), four electric push rods (4) are evenly arranged on the outer ring of the rotating shaft (3), a grab assembly is arranged at the output end of the electric push rod (4), and the grab assembly comprises a connecting plate (5), one side wall of the connecting plate (5) is fixedly connected to the output end of the electric push rod (4), and the other two ends of the side wall of the connecting plate (5) are symmetrically fixedly connected with plug rods (6), and the plug rods (6) are used to be plugged into the air inlet pipe (102) and the air outlet pipe (103) of the vacuum pump parts; The surface of the feeding conveyor belt (1) is provided with a plurality of groups of limit blocks (7), the two limit blocks (7) in each group are symmetrically arranged, and each limit block (7) is in the shape of the number "7", a vacuum pump part is placed between the two limit blocks (7) in each group, and the fixing ear (8) on the vacuum pump part is pressed against the inner corner position of the limit block (7); Each of the electric push rods (4) is provided with an air supply assembly, the air supply assembly comprising an air supply pipe (15), one end of the air supply pipe (15) is connected to the interior of a rotating shaft (3) which is arranged in a hollow shape, and the lower end of the rotating shaft (3) rotates and is connected to an air intake hose; The other end of the air supply pipe (15) extends in the direction of the plug-in rod (6), and a plurality of grooves (16) are provided on the outer surface of the plug-in rod (6), and a capsule (17) is provided in the groove (16), and the capsule (17) is connected to the air supply pipe (15); A sleeve (18) is provided on the upper surface of the end of each electric push rod (4), a slide rod (19) is slidably connected in the sleeve (18), a No. 1 touch switch (20) is provided at one end of the slide rod (19) close to the rotating shaft (3), the No. 1 touch switch (20) is used to control an electric valve (21) provided on the air supply pipe (15), and the electric valve (21) is provided on the electric push rod (4), a spring (22) is provided on the outer ring sleeve of the other end of the slide rod (19), one end of the spring (22) is pressed against the sleeve (18), and the other end of the spring (22) is fixedly connected to the other end of the slide rod (19), and a protective plate (23) is also fixedly connected to the output end of the electric push rod (4), and the side wall of the protective plate (23) is opposite to the other end of the slide rod (19).

2. A vacuum pump parts processing surface treatment device according to claim 1, characterized in that: The painting assembly comprises a motor (9), the output end of the motor (9) is fixedly connected to a screw rod (10), an upper cover plate (11) and a lower cover plate (12) are threadedly connected to the screw rod (10), and opposite side walls of the upper cover plate (11) and the lower cover plate (12) are respectively provided with a painting hole (13), and the painting hole (13) on the lower cover plate (12) is arranged at an eccentric position of the lower cover plate (12) and is opposite to an air inlet pipe (102) and an air outlet pipe (103) of a vacuum pump part; The drying component comprises an arc-shaped plate (14), and a plurality of fan groups are provided on the lower surface of the arc-shaped plate (14).

3. A vacuum pump parts processing surface treatment device according to claim 2, characterized in that: The blanking assembly comprises a base plate (24), two cylinders (25) are provided on the upper surface of the base plate (24), output ends of the cylinders (25) penetrate downwardly through the base plate (24), and the output ends of the cylinders (25) are used to limit the movement of the vacuum pump parts, and a second touch switch (26) is provided on one side of the lower surface of the base plate (24), and the second touch switch (26) is used to control the start and stop of the cylinders (25).

4. A vacuum pump parts processing surface treatment device according to claim 3, characterized in that: The outer ring of the rotating shaft (3) is further provided with a disk body (27), a rotating groove (28) is provided at an eccentric position on the lower surface of the disk body (27), a U-shaped push rod (29) is provided between the rotating groove (28) and the end of the electric push rod (4), one end of the push rod (29) is fixedly connected to the electric push rod (4), and the other end of the push rod (29) is slidably connected in the rotating groove (28).

5. A vacuum pump parts processing surface treatment device according to claim 4, characterized in that: Each of the electric push rods (4) is provided with a conductive rod (30), which is arranged close to the rotating shaft (3), and the end of the conductive rod (30) is slidably connected to a ring-shaped conductive groove (31) opened on the upper surface of the disk body (27).

6. A vacuum pump parts surface treatment device according to claim 5, characterized in that: The lower end of the conductive rod (30) is rotatably connected to a rotating body (32), a plurality of ball grooves are provided on the outer surface of the rotating body (32), and balls (33) are rotatably connected in the ball grooves.

7. A method for processing the surface of a vacuum pump part, the method for processing the surface of a vacuum pump part adopts a device for processing the surface of a vacuum pump part according to any one of claims 1 to 6, characterized in that: The surface treatment method for vacuum pump parts comprises the following steps: S1: Material preparation: grinding, pickling and cleaning the finished vacuum pump parts, drying them and waiting for loading and painting; S2: Loading: vacuum pump parts are placed on the feeding conveyor (1) and transferred to one side of the transfer unit. Then, the vacuum pump parts are grabbed by the grabbing component in cooperation with the air supply component and transferred to the painting process. S3: Painting, the paint is evenly sprayed on the outer surface of the vacuum pump parts through the painting component, and then sent to the drying stage through the material transfer unit; S4: Drying: The paint on the outer surface of the vacuum pump parts is dried and solidified through the drying component, and then sent to the unloading link through the transfer unit; S5: unloading, the vacuum pump parts are unloaded from the gripping assembly to the unloading conveyor belt (2) through the unloading assembly and the air supply assembly, and the vacuum pump parts are conveyed away from the vacuum pump parts processing surface treatment device.

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