A milling and grinding detection integrated device for producing a boiler soot blower spring valve

Abstract

The application relates to a milling and grinding detection integrated device for producing a boiler soot blower spring valve, which comprises a base and a milling and grinding device arranged on the base, the top of the base is rotationally connected with a horizontally arranged rotary table, the inside of the base is provided with a driving piece for driving the rotary table to rotate, the rotary table top is evenly divided into multiple sector-shaped working areas, and the device further comprises: a positioning groove which is arranged on the part of the edge of each working area corresponding to the rotary table and is used for clamping a valve body of the spring valve; a positioning pin which is vertically arranged around the part of the positioning groove in each working area and is used for inserting a disc hole of a flange plate on the spring valve; and a rotary angle air cylinder which is arranged on the part close to the positioning groove in each working area and is used for pressing the spring valve. The application has the effects of improving the output efficiency of the spring valve production line and reducing the labor intensity of workers in the production workshop.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of boiler soot blower assembly semi-automatic production line, in particular to a milling and grinding detection integrated device for boiler soot blower spring valve production. BACKGROUND

[0002] During the operation of the boiler, the flue gas generated by combustion contains dust and particulate matter, which adheres to the inner wall of the boiler and the inside of the flue, forming scale. If not removed in time, the scale will increase the heat transfer resistance, affecting the thermal efficiency and safe operation of the boiler. The boiler soot blower is a device specially used to remove the scale in the inner wall of the boiler combustion chamber and the flue.

[0003] The working principle of the boiler soot blower is to use high-speed jet compressed air or steam to impact the inner wall of the boiler and the flue, removing the dust and particulate matter adhering to the surface. The boiler soot blower is usually operated automatically or manually according to a predetermined time interval or according to the working state of the boiler, and by periodically removing the scale, the high efficiency and safety of the boiler are maintained.

[0004] According to the above principle of the boiler soot blower, the boiler soot blower is usually composed of a soot blowing gas source, a soot blowing nozzle, a soot blowing control system and a soot blowing support structure. The soot blowing support structure is used to install and fix the body of the boiler soot blower, and the control system controls the working mode and timing of the soot blower. The running power of the soot blowing gas source is automatically adjusted according to the running parameters of the boiler, such as the running state, flue gas temperature and pressure. The soot blowing gas source compressed air or steam is injected into the inner wall of the boiler and the flue through the soot blowing nozzle installed at the key position inside the boiler.

[0005] The boiler soot blower is in a closed state during the operation of the boiler, and is only opened when the boiler needs to be cleaned. The valve that seals the nozzle of the boiler soot blower is usually a spring valve. After the boiler is opened in cleaning mode, the control system first opens the spring valve to ensure ventilation, and then proceeds to the subsequent air injection.

[0006] The structure of the spring valve is similar to that of a common one-way valve. One end of the valve body of the spring valve is provided with a flange plate for fixing the spring valve, and the flange plate is provided with an air inlet communicating with the inside of the valve body. Correspondingly, the end of the valve body away from the flange plate is provided with an air outlet. The inner wall of the valve body is provided with a connecting portion for clamping the air injection pipeline corresponding to the part between the air inlet and the air outlet. Under normal circumstances, the valve core blocks the air inlet and the air outlet by closing the connecting portion.

[0007] But distinguished from the common one-way valve, the connecting rod of the spring valve connecting the valve core extends to the outside of the valve body and is connected with the spring and driven by the driving member. When the spring valve is opened, the driving member pushes the valve core to cancel the closure of the valve body, at this time, the spring is in the compressed state, when the spring valve is closed, the driving member cancels the driving of the spring valve, the push rod and the valve core are reset by the spring elastic force, and the closed state of the spring valve is restored.

[0008] For the related spring valve in the above, the valve core in the spring valve needs to be connected with the jet pipe, and the end of the jet pipe is usually installed between the inner wall of the spring valve and the outer wall of the valve core. Therefore, in the production of the spring valve, in order to ensure the air tightness of the spring valve and facilitate the installation of the jet pipe, the outer wall of the valve core pipe of the spring valve and the inner wall of the spring valve need to be milled and polished.

[0009] However, most of the existing spring valves are milled and polished by manual operation, which is not only low in efficiency, but also high in labor intensity of the technical personnel. Therefore, a device should be provided to improve the automation degree of the milling and polishing process of the outer wall of the valve core and the inner wall of the spring valve, replace the manual milling of the workers, and improve the production efficiency of the spring valve on the production line. SUMMARY

[0010] In order to improve the output efficiency of the spring valve production line and reduce the labor intensity of the workers in the production workshop, the application provides a milling and polishing detection integrated device for spring valve production of a boiler soot blower.

[0011] The milling and polishing detection integrated device for spring valve production of a boiler soot blower provided by the application adopts the following technical scheme:

[0012] A milling and polishing detection integrated device for spring valve production of a boiler soot blower, comprising a base and a milling and polishing device arranged on the base, the top of the base is rotatably connected with a horizontally arranged rotary table, a driving member for driving the rotary table to rotate is arranged in the base, the rotary table top is equally divided into a plurality of sector-shaped working areas, and in addition, the device further comprises:

[0013] A positioning groove is arranged in a part of the edge of each working area corresponding to the rotary table, and is used for clamping the valve body of the spring valve.

[0014] A positioning pin is vertically arranged around the positioning groove in each working area, and is used for inserting the disc hole of the flange disc of the spring valve.

[0015] A rotary angle air cylinder is arranged in a part close to the positioning groove in each working area, and is used for pressing the spring valve.

[0016] By adopting the technical scheme, the base is taken as the main body of the inner wall milling and grinding device in the production of the spring valve, a rotary table is arranged on the base as a milling and grinding and detection table surface of the spring valve, and the rotary table carries the spring valve. The rotary table surface is evenly divided into multiple fan-shaped work areas with different functions. The rotary table is driven to rotate by the driving element in the base to switch different work areas. The present scheme condenses a traditional straight production line into a closed ring-shaped production line to save the working space in the workshop. Meanwhile, the main milling and grinding device is arranged in an integrated manner with the base to facilitate the movement of the technical personnel. When the technical personnel need to move the working position, the technical personnel can push the base. In the multiple work areas of the rotary table, one work area is taken as a work area for the technical personnel to load the spring valve. The main working process of the spring valve is as follows: first, the technical personnel loads the spring valve to be milled and ground in the loading work area. The flange plate of the spring valve is arranged with the upper surface facing upward. The bottom side of the flange plate abuts against the rotary table surface. Meanwhile, the disc hole on the flange plate is inserted into the positioning pin to fix the spring valve on the rotary table. The piston rod of the rotary angle cylinder is extended and turned above the spring valve to press on the flange plate to fix the spring valve together with the positioning pin. In the present scheme, the gas outlet of the spring valve should be outward relative to the direction of the radius of the rotary table,

[0017] Optionally, the milling and grinding device comprises;

[0018] The mechanical arm is fixed at one end to the base and extends to above one work area of the rotary table at the other end.

[0019] The grinding tool is arranged at the part of the mechanical arm extending to above the rotary table. The spring valve is rotated with the rotary table to switch the work area to below the grinding tool. The grinding tool is fed to complete the milling and grinding.

[0020] By adopting the technical scheme, the grinding tool is in the form of a ring matched with the milling surface. The mechanical arm is fixedly arranged at one work area and does not rotate with the rotary table. When the rotary table rotates to transport the spring valve to below the grinding tool of the mechanical arm, the grinding tool is fed downward at a fixed depth to mill and grind the outer wall of the valve core pipeline in the valve body inner wall of the spring valve to enable the jet pipeline to be smoothly connected. The significance of the milling and grinding is to remove burrs left on the inner surface of the spring valve during the production of the spring valve to make the inner wall of the spring valve smooth and avoid the uneven part of the inner wall of the spring valve for clamping the jet pipeline from affecting the connection air tightness of the spring valve.

[0021] Optionally, the milling and grinding device further comprises;

[0022] The detection pipeline extends to below one work area of the rotary table and is matched with the gas outlet of the spring valve to transport gas and liquid into the spring valve.

[0023] The detection probe extends to below the rotary table and is inserted into the spring valve together with the detection pipeline to measure the pressure.

[0024] By adopting the above technical solution, a testing area is added to the turntable, allowing for an additional test of the spring valve's airtightness or liquid tightness in the final stage of production, thus ensuring a high yield rate. The testing process utilizes the pressure measurement principle. The airtightness test process is as follows: When the turntable transports the milled spring valve to the corresponding work area of ​​the testing pipeline, the testing pipeline is connected to the spring valve's air outlet and supplies air into the spring valve. The testing probe extends into the spring valve along with the testing pipeline. During the air supply process, the spring valve remains closed, allowing for continuous air delivery. Once the internal pressure reaches its limit, the valve core breaks open, allowing the spring valve to conduct. At this point, the detection probe detects the limit pressure value of the spring valve and transmits the data to the terminal testing instrument. The liquid tightness testing process of the spring valve is as follows: During the liquid tightness testing of the spring valve, the spring valve remains closed. For a spring valve with normal sealing, when the testing pipeline continuously supplies liquid to pressurize the inside of the spring valve until the pressure sensor detects the preset value, the spring valve will not leak. If the air tightness and liquid tightness tests of a single spring valve fail, the technicians are alerted, and the material is directly discharged from the testing area.

[0025] Optional, also includes;

[0026] An overflow trough is located on the turntable surface near each positioning slot, surrounding the positioning slot, and is used to collect liquid overflowing from the spring valve inlet.

[0027] The water collection tank, located below the corresponding detection pipe on the base, is used to collect the liquid flowing out from the spring valve.

[0028] By adopting the above technical solution, when the sealing performance of a single spring valve fails, after injecting liquid at a certain water pressure, the liquid flows out from the inlet of the spring valve and onto the turntable. To prevent the overflow water from spreading on the surface of the turntable, an overflow trough is set up to block the overflow liquid. The overflow water flows into the overflow trough, and then technicians can clean the overflow trough. Similar to the overflow trough, a collection trough is set below the liquid delivery port of the spring valve. After the liquid tightness test of the spring valve is completed, the liquid flowing out of the spring valve flows into the collection trough, and then the collection trough collects and reuses the liquid.

[0029] Optional, also includes;

[0030] The air supply duct is connected to the fan at one end and extends to the top of the turntable's working area and is adapted to the air inlet of the spring valve.

[0031] The push rod is vertically installed below the corresponding air supply duct of the turntable and is used to push the valve core to open the spring valve.

[0032] By adopting the technical scheme, due to the detection of the liquid tightness of the spring valve, after the liquid is delivered to the inside of the valve body of the spring valve, the inside of the spring valve should be dried in time to reduce the erosion of the wet water vapor on the inner wall of the spring valve as much as possible. First, the push rod pushes the connecting rod of the spring valve spool, opens the spring valve to ensure ventilation in the spring valve, and then the fan operates to dry the moisture in the spring valve through the air supply pipeline. In this scheme, the fan can not only blow off the moisture in the spring valve, but also blow off the residual debris left after the grinding and milling of the tool.

[0033] Optionally, the positioning pin penetrates the rotary table, and a driving member for driving the positioning pin to move vertically is arranged at the bottom side of the rotary table. The driving member drives the top end of the positioning pin to move downward to be flush with the table top of the rotary table, thereby canceling the restriction on the upper flange plate of the spring valve.

[0034] By adopting the technical scheme, the positioning mechanism is improved to have an additional blanking function, thereby saving the improvement of the structure. In this scheme, the positioning pin is designed to be independently inserted into the rotary table and vertically slides relative to the rotary table. The driving member is fixed on the base table below the rotary table, and drives the positioning pin to slide upward to protrude above the rotary table. The technician installs the disc hole of the spring valve flange plate on the positioning pin, and then rotates the piston rod of the corner air cylinder to the upper side of the flange plate and moves downward to press tightly. When the detection probe detects that a single spring valve needs to be blanked during the process due to insufficient air tightness, or a single spring valve needs to be blanked after completing the entire processing process, the driving member drives the positioning pin to move downward below the rotary table, thereby canceling the restriction on the spring valve. The piston rod of the corner air cylinder rotates away from the flange plate, and then moves downward to be close to the table top of the rotary table. The piston rod of the corner air cylinder rotates again toward the flange plate of the spring valve, pushes the flange plate to be blanked from the rotary table, and realizes the blanking of the spring valve without expanding the structure.

[0035] Optionally, it further comprises;

[0036] The blanking guide rail is inclined downward at the part of the base table corresponding to the working area of the rotary table. The height of the top end of the blanking guide rail is not higher than the height of the rotary table, and the blanking guide rail is used to guide the spring valve to slide off the rotary table.

[0037] By adopting the technical scheme, when the spring valve is blanked, the blanking guide rail guides the spring valve to slide off, thereby reducing the collision damage of the spring valve.

[0038] Optionally, the working areas corresponding to the milling and grinding device, the detection pipeline, the air supply pipeline, and the blanking guide rail on the rotary table are sequentially adjacent to each other, and are used to form a complete spring valve milling, grinding, and detection production line.

[0039] By adopting the technical scheme, the multiple work areas on the rotary table are arranged in sequence according to the sequence of feeding, milling and grinding, detection, inner wall drying and discharging, and the first position is connected, the technician's work station is arranged at the feeding part at the front end, and in the whole process, the technician only needs to install the spring valve in the positioning groove of the rotary table, and can also observe the discharging process of the spring valve on the discharging guide rail, so as to avoid the blockage of the spring valve in the discharging guide rail. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 is a schematic diagram of the overall structure of the spring valve in the first embodiment of the application.

[0041] Figure 2 is a sectional view highlighting the internal structure of the spring valve in the first embodiment of the application.

[0042] Figure 3 is a schematic diagram of the overall structure of the milling and grinding detection integrated device in the second embodiment of the application.

[0043] Figure 4 is a schematic diagram highlighting the positioning assembly of each work area on the rotary table in the second embodiment.

[0044] Figure 5 is a schematic diagram highlighting the milling and grinding area on the rotary table in the second embodiment.

[0045] Figure 6 is a schematic diagram highlighting the detection area on the rotary table in the second embodiment.

[0046] Figure 7 is a schematic diagram highlighting the drying area on the rotary table in the second embodiment.

[0047] Figure 8 is a schematic diagram highlighting the discharging area on the rotary table in the second embodiment.

[0048] BRIEF DESCRIPTION OF DRAWINGS: 1, spring valve; 11, valve body; 12, flange plate; 13, disc hole; 14, air inlet; 15, air outlet; 151, joint plate; 16, connecting part; 17, valve core; 171, connecting rod; 18, return spring; 2, base; 21, rotary table; 22, overflow groove; 3, feeding area; 31, positioning groove; 32, positioning pin; 33, corner air cylinder; 331, pressing rod; 34, small self-locking air cylinder; 341, connecting plate; 4, milling and grinding area; 41, milling and grinding support frame; 42, mechanical arm; 43, milling and grinding knife; 5, detection area; 51, detection support frame; 52, detection pipeline; 53, signal transmission line; 531, signal detector; 54, communication head; 55, first driving air cylinder; 56, water collecting groove; 6, drying area; 61, drying support frame; 62, fan; 63, air supply pipeline; 64, second driving air cylinder; 7, discharging area; 71, discharging guide rail. DETAILED DESCRIPTION

[0049] The application will be further described below in conjunction with the accompanying drawings. Figures 1-8 The application will be further described below in conjunction with the accompanying drawings.

[0050] The embodiment of the application discloses a spring valve for a boiler soot blower first, referring to Figure 1 The spring valve for the boiler soot blower comprises a cylindrical valve body 11, the inside of which is hollowed out for the flow of gas; one end of the valve body 11 is closed, and a flange plate 12 coaxially arranged is fixedly connected to the end of the opening of the valve body 11; a middle part of the flange plate 12 is provided with a gas inlet port 14 communicating with the inside of the valve body 11, which serves as an inlet for the flow of gas in the inside of the valve body 11; corresponding to the gas inlet port 14, a gas outlet port 15 is provided on the side wall of the end of the valve body 11 away from the gas inlet port 14; the direction of the gas outlet port 15 is perpendicular to the direction of the gas inlet port 14, so as to avoid the straight inlet and outlet of gas and reduce the control and conduction effect of the valve body 11 on the gas flow; a joint plate 151 is fixedly connected to the part of the valve body 11 corresponding to the gas outlet port 15; the joint plate 151 is similar to the flange plate 12 and is used for fixing the spring valve 1 in the inside of the boiler soot blower; for this purpose, a plurality of disc holes 13 distributed at equal intervals in the circumferential direction are provided on the flange plate 12 for the installation of bolts to stabilize the fixing effect.

[0051] Referring to Figure 2 The inner wall part of the valve body 11 of the spring valve 1 between the gas inlet port 14 and the gas outlet port 15 is fixedly connected with a connecting part 16 for clamping the end of a gas jet pipe; the connecting part 16 is adapted to the end of the gas jet pipe; the gas jet pipe is inserted into the inside of the spring valve 1 through the gas inlet port 14 of the spring valve 1 and is inserted into the connecting part 16; gas or high-temperature steam is input into the inside of the spring valve 1 from the gas jet pipe and is sprayed out from the gas outlet port 15; a valve core 17 is inserted into the connecting part 16 in the inside of the valve body 11; the outer wall of the valve core 17 abuts against the inner wall of the connecting part 16; the valve core 17 is in the shape of a gyroscope; the tip part of the valve core 17 faces the gas jet pipe; and one end of the valve core 17 close to the gas outlet port 15 is fixedly connected with a connecting rod 171. In the normal state of the spring valve 1, the valve core 17 abuts against the connecting part 16, thereby blocking the connection between the gas jet pipe and the gas outlet port 15; when the boiler soot blower is opened in the cleaning state, an external driving member drives the connecting rod 171, the connecting rod 171 pushes the valve core 17 of the spring valve 1 towards the gas jet pipe, until the valve core 17 completely separates from the connecting part 16, thereby opening the flow of gas in the inside of the spring valve 1; the gas flow or high-temperature steam flows into the connecting part 16 from the gas jet pipe and is sprayed out from the gas outlet port 15.

[0052] Referring to Figure 2In order to reset the valve core 17, a reset spring 18 is arranged at the center of the closed end of the valve body 11 in the embodiment, the connecting rod 171 of the valve core 17 penetrates the closed end of the valve body 11 and is connected with the reset spring 18, so that when the connecting rod 171 is in the state of pushing the valve core 17 to open the spring valve 1, the reset spring 18 is in the compressed state, and when it is needed to be closed, the external driving force is cancelled, and the reset spring 18 resets the valve core 17 to the connecting part 16 by the elastic force.

[0053] The embodiment of the application discloses a milling and grinding detection integrated device for spring valve production of a boiler soot blower. Figure 3 The milling and grinding detection integrated device for spring valve production of the boiler soot blower comprises a base 2 and a rotating table 21 horizontally arranged above the base 2, the rotating table 21 is rotationally connected with the base 2, and a motor for driving the rotating table 21 to rotate around the center is arranged in the base 2.

[0054] Referring to Figure 3 Based on the function of the rotating table 21, the base 2 is divided into five fan-shaped working areas corresponding to the table top of the rotating table 21, which are sequentially an upper loading area 3, a milling and grinding area 4, a detection area 5, a drying area 6 and a lower loading area 7, the upper loading area 3 is adjacent to the lower loading area 7, and the five working areas of the table top of the rotating table 21 are alternately converted in the five working areas of the base 2. A technician installs the spring valve 1 to be milled and ground in the upper loading area 3, the rotating table 21 rotates to transport the spring valve 1, and the spring valve 1 sequentially passes through the corresponding areas, the inner wall of the valve body 11 and the outer wall of the connecting part 16 are milled and ground through the milling and grinding area 4, the air tightness and the liquid tightness are detected through the detection area 5, the spring valve 1 is dried through the drying area 6, and finally the spring valve 1 is unloaded. This is the process of milling and grinding detection of the inner wall of the single spring valve 1. The rotating table 21 rotates to send the spring valve 1 to different working areas, and the traditional linear assembly line is curled into a closed loop circle, so that the machining space of the spring valve 1 is greatly saved, and the technician simultaneously supervises the side of the lower loading area 7 on the side of the upper loading area 3, so that multi-line operation reduces the labor cost.

[0055] Referring to Figure 3 And Figure 4, the turrets 21 are provided with positioning grooves 31 at the edges of each working area, the positioning grooves 31 are adapted to the valve body 11 of the spring valve 1, the positioning grooves 31 are used to clamp the valve body 11, when the valve body 11 is clamped in the positioning groove 31, the flange plate 12 of the spring valve 1 is attached to the top side of the turret 21, and the air outlet hole of the spring valve 1 is directed to the outside of the turret 21 in the radial direction; the positioning grooves 31 are respectively inserted with a positioning pin 32 on both sides, when the spring valve 1 is installed on the turret 21, the two positioning pins 32 are respectively inserted into the two disc holes 13 of the positioning disc, and the disc holes 13 are located at both ends of the flange plate 12. When the technician loads the material, the technician inserts the two disc holes 13 of the flange plate 12 into the two positioning pins 32, and the air outlet hole of the spring valve 1 is directed outward, so as to realize the positioning of the spring valve 1.

[0056] Referring to Figure 3 With Figure 4 , the turrets 21 are provided with two corner cylinders 33 inside each working area, the two corner cylinders 33 are respectively arranged on both sides of the positioning groove 31, and the end of the piston rod of the corner cylinder 33 is fixedly connected with a vertically arranged pressing rod 331, which is used to press the flange plate 12 of the spring valve 1. After the spring valve 1 is fixed on the turret 21, the corner cylinder 33 rotates the piston rod to the pressing rod 331 above the flange plate 12, and then the corner cylinder 33 retracts the piston rod to press the flange plate 12 with the pressing rod 331, so as to realize the fixation of the spring valve 1.

[0057] Referring to Figure 3 With Figure 4The positioning mechanism is improved in the embodiment, the rotary angle cylinder 33 has the functions of stretching and rotating, and the spring valve 1 can be unloaded by the rotary angle cylinder 33 in addition to being fixed. According to the idea, a small self-locking cylinder 34 is fixed on the base 2 corresponding to each positioning pin 32 and arranged vertically, the end of the piston rod of the small self-locking cylinder 34 is fixed with a connecting plate 341, the connecting plate 341 is fixed with the bottom of the positioning pin 32, so as to realize the automatic extension and retraction of the positioning pin 32. When the spring valve 1 is fixed, the small self-locking cylinder 34 is in the state of the piston rod extending, the positioning pin 32 protrudes from the top side of the rotary table 21 and limits the flange plate 12 of the spring valve 1 fixed in the positioning groove 31. When the spring valve 1 needs to be unloaded, the piston rod of the small self-locking cylinder 34 is retracted first, the piston rod drives the positioning pin 32 to descend below the table top of the rotary table 21, and the limitation on the flange plate 12 is cancelled. At the same time, the two rotary angle cylinders 33 extend and reversely rotate the piston rods at the same time, so that the pressing rod 331 at the end of the piston rod cancels the pressing of the flange plate 12 and makes the pressing rod 331 away from the top of the spring valve 1. Then the rotary angle cylinder 33 stops rotating, the piston rods of the two rotary angle cylinders 33 and the part away from the top of the spring valve 1 are retracted to the bottom end of the pressing rod 331 close to the table top of the rotary table 21. Then the two rotary angle cylinders 33 reversely rotate the piston rods, so that the pressing rod 331 pushes the flange plate 12 part of the spring valve 1 above the rotary table 21, and the unloading of the spring valve 1 is completed.

[0058] The key of the above process is that the rotating speed of the rotary angle cylinder 33 needs to be kept equal to ensure the forward nature of the spring valve 1 unloading.

[0059] Referring to Figure 3 With Figure 5 , the milling area 4 is adjacent to the feeding area 3, the rotary table 21 rotates to transport the spring valve 1 installed in the feeding area 3 to the milling area 4, and the inner wall of the valve body 11 and the outer wall of the connecting part 16 are milled. One side of the base 2 is provided with a mechanical arm 42, and a milling support frame 41 for installing the mechanical arm 42 is fixed below the mechanical arm 42. The front end of the mechanical arm 42 is provided with a milling cutter 43, and the milling cutter 43 is in a cylindrical shape. When the spring valve 1 rotates with the rotary table 21 to below the mechanical arm 42, the milling cutter 43 at the front end of the mechanical arm 42 feeds downward, inserts the spring valve 1 from the air inlet 14, the outer wall of the cylindrical milling cutter 43 abuts against the inner wall of the valve body 11 of the spring valve 1, and the inner wall of the milling cutter 43 abuts against the outer wall of the connecting part 16 in the spring valve 1, so as to mill the two milling surfaces at the same time. Finally, the milling cutter 43 of the mechanical arm 42 is withdrawn, and the rotary table 21 continues to rotate.

[0060] The mechanical arm 42 in the embodiment selects the FANUC mechanical arm 42, which has relatively low complexity and cost, and can simply adjust the three-dimensional position of the front milling cutter 43, which meets the design idea of the embodiment.

[0061] With reference to Figure 3 With reference to Figure 6 , the milling and grinding area 4 is adjacent to the detection area 5 on the side away from the feeding area 3, and the spring valve 1 after milling and grinding is detected for air tightness and liquid tightness in the detection area 5. The detection support frame 51 is fixed below the detection area 5 on the base 2 corresponding to the rotary table 21, one side of the detection support frame 51 is provided with a detection pipeline 52 for conveying gas or liquid for detecting the sealing performance of the spring valve 1, and the other side is provided with a signal transmission line 53, one end of the signal transmission line 53 is fixedly connected with a detection probe, and the other end is connected with a signal analyzer, and in this embodiment, a pressure sensor is additionally installed at the end of the detection probe.

[0062] With reference to Figure 6 , the detection support frame 51 is further provided with a communication head 54, one end of the detection probe of the signal transmission line 53 and one end of the outlet of the detection pipeline 52 are connected with the communication head 54 at the same time, the height of the communication head 54 is equal to the height of the gas outlet 15 on the spring valve 1 installed in the positioning groove 31, and the side of the communication head 54 is matched with the gas outlet 15 of the spring valve 1; a first driving air cylinder 55 horizontally arranged is installed on the side of the detection support frame 51 away from the base 2, and the piston rod end of the first driving air cylinder 55 is fixedly connected with the communication head 54, and is used to push the communication head 54.

[0063] In this embodiment, the sealing performance is detected by pressure measurement of the pressure sensor, and the detection methods are different according to different use scenarios of the spring valve 1, and the detection methods need to be different, and the detection methods need to be different. The liquid tightness detection is taken as an example in this embodiment. When the spring valve 1 is milled and ground, the rotary table 21 drives the spring valve 1 to the detection area 5, at this time, under the action of no external force, the valve core 17 is in the state of closing the spring valve 1, the first driving air cylinder 55 extends the piston rod and keeps the state of extending the piston rod, so that the communication head 54 is stably inserted into the gas outlet 15 of the spring valve 1. The detection pipeline 52 transports a certain amount of liquid into the communication head 54, if the sealing performance of the spring valve 1 is good, the pressure sensor at the front end of the detection probe will detect the expected pressure value, which is displayed on the signal analyzer; if the sealing performance of the spring valve 1 is poor, the water flow flows out from the air inlet 14 at the top of the spring valve 1 to the rotary table 21, or the water flow directly flows out from the air inlet 14 by pushing the valve core 17, in this case, the pressure value detected by the pressure sensor cannot reach the expected pressure value.

[0064] With reference to Figure 6 , considering the treatment of water flow during the liquid tightness detection of the spring valve 1 and after the detection, a water collecting tank 56 is arranged below the detection support frame 51 in this embodiment, when the first driving air cylinder 55 retracts the piston rod and the connecting block cancels the insertion of the spring valve 1, under the action of gravity, the water flow in the valve body 11 flows out from the gas outlet 15 in the spring valve 1 and flows into the water collecting tank 56 for recycling by the technical personnel.

[0065] Review Figure 3 , due to the inevitability of the poor sealing spring valve 1, the water flow will overflow from the air inlet 14 of the spring valve 1 to the turntable 21 in the process of detecting liquid tightness, in order to avoid the spread of water flow on the turntable 21, the overflow groove 22 surrounding the positioning groove 31 is arranged in each working area, and when the spring valve 1 is installed in the positioning groove 31, the overflow groove 22 surrounds the flange plate 12 of the spring valve 1, the two ends of the overflow groove 22 are bent and extended to the edge of the turntable 21, so as to realize that when the poor spring valve 1 is detected, the water flow from the water inlet of the spring valve 1 is blocked by the overflow groove 22 and cannot spread on the top side of the turntable 21. The water in the overflow groove 22 is cleaned so that it flows out of the edge of the turntable 21.

[0066] Refer to Figure 3 With Figure 6 , it is worth mentioning that in the present embodiment, the water collecting groove 56 can not only collect the detection water, but also collect the poor spring valve 1. When the detection device detects the poor spring valve 1, the discharging process is directly carried out in the detection area 5 according to the above-mentioned discharging process, which saves the subsequent processing process, and the spring valve 1 discharged from the detection area 5 will directly fall into the water collecting groove 56.

[0067] Refer to Figure 3 With Figure 7 , the drying area 6 is arranged on the side away from the feeding area 3 of the detection area 5. The water adhered to the inner wall of the spring valve 1 and the humid water vapor are easy to rust the inner wall of the spring valve 1 and damage the spring valve 1 after the spring valve 1 is tested for liquid tightness in the detection area 5. Therefore, the drying area 6 should be arranged after the detection is completed to remove the residual moisture in the spring valve 1. The part corresponding to the working area of the base 2 is provided with a drying support frame 61, and the drying support frame 61 is provided with a fan 62 and a supply pipe. One end of the air supply pipe 63 is connected to the fan 62, and the other end extends to above the turntable 21. When the spring valve 1 is clamped on the turntable 21 and rotates with the turntable 21 to the drying area 6, the air inlet 14 of the spring valve 1 is opposite to the end air outlet of the air supply pipe 63. The purpose of arranging the fan 62 and the air supply pipe 63 in the present embodiment is to send high-strength wind into the spring valve 1 through the air supply pipe 63. The airflow flows into the spring valve 1 from the air inlet 14, and the moisture in the inner wall of the spring valve 1 is dried from the air outlet 15.

[0068] Refer to Figure 7, the spring valve 1 is in a closed state without external force acting on the valve core 17, so before the fan 62 operates, the valve core 17 is first pushed open by the force assembly, based on this, the bottom side of the drying support frame 61 is fixed with a vertically arranged second driving air cylinder 64, the piston rod of the second driving air cylinder 64 extends through the drying support frame 61 to below the drying support frame 61, when the turntable 21 rotates the spring valve 1 into the drying area 6, the piston rod of the second driving air cylinder 64 is just below the connecting rod 171 of the valve core 17 of the spring valve 1. After the turntable 21 rotates the spring valve 1 into the drying area 6, the second driving air cylinder 64 is first operated to extend the piston rod to push the connecting rod 171 of the valve core 17, so that the spring valve 1 is internally communicated, and then the fan 62 continuously delivers high-strength wind through the air supply pipeline 63 to dry the water vapor in the spring valve 1.

[0069] Referring to Figure 3 With Figure 8 , the blanking area 7 is arranged between the drying area 6 and the feeding area 3, which is the last working area of the spring valve 1 milling and grinding detection process, and the spring valve 1 is unloaded from the turntable 21 in the blanking area 7 by the pushing of the above-mentioned corner air cylinder 33. In order to avoid the direct falling of the spring valve 1 and damage the structure of the valve body 11, a blanking guide rail 71 is arranged on the edge of the turntable 21 in the blanking area 7, which is inclinedly arranged, and the inclined upward end thereof is arranged close to the table surface of the turntable 21 and is at the same height with the table surface of the turntable 21. In actual application, the inclined downward end of the blanking guide rail 71 is provided with a collecting box, and the finished spring valve 1 pushed by the corner air cylinder 33 slides along the blanking guide rail 71 to the collecting box, thereby completing the whole milling and grinding detection integrated process of the spring valve 1.

[0070] The implementation principle of the milling and grinding detection integrated device for the spring valve 1 production of the boiler soot blower according to the second embodiment of the present application is that the base 2 is equally divided into five fan-shaped working areas respectively responsible for different processing procedures, the working area is projected onto the table surface of the turntable 21 as a 72° fan-shaped area, and the turntable 21 gradually rotates to move the spring valve 1 to the corresponding area to realize the step-by-step processing of the spring valve 1.

[0071] The whole milling and grinding detection process is described by taking a single spring valve 1 as an example.

[0072] Firstly, in order to facilitate the operation of the technical personnel, the work station is arranged between the blanking guide rail 71 of the blanking area 7 and the feeding area 3. The technical personnel grasp the single spring valve 1 at the work station to prepare for feeding.

[0073] The small self-locking cylinder 34 in the loading area 3 operates, extending its piston rod and pushing the positioning pin 32 protruding above the turntable 21. Technicians position the air outlet of the spring valve 1 radially outward from the turntable 21, aligning the two holes 13 of the flange 12 with the two positioning pins 32, and inserting the valve body 11 into the positioning groove 31, thus positioning the spring valve 1. Then, the two corner cylinders 33 in the loading area 3 simultaneously rotate their piston rods towards each other until they are above the flange 12. The corner cylinders 33 then retract their piston rods, causing the pressure rod 331 at the end of the piston rod to press against the flange 12, fixing the spring valve 1. Before unloading, both the corner cylinders 33 and the small self-locking cylinder 34 maintain the extended piston rod position.

[0074] After the material is loaded, the turntable 21 rotates to move the spring valve 1 to the milling area 4 for milling. The milling cutter 43 at the front end of the robotic arm 42 feeds downwards and is inserted into the spring valve 1 through the air inlet 14. The outer wall of the cylindrical milling cutter 43 abuts against the inner wall of the valve body 11 of the spring valve 1, and the inner wall of the milling cutter 43 abuts against the outer wall of the inner connecting part 16 of the spring valve 1. The two milling surfaces are milled at the same time. Finally, the milling cutter 43 of the robotic arm 42 retracts, and the turntable 21 continues to rotate, driving the spring valve 1 to the detection area 5.

[0075] The first drive cylinder 55 extends its piston rod and maintains the extended position, allowing the connector 54 to stably connect to the outlet 15 of the spring valve 1. The detection pipe 52 delivers a measured amount of liquid into the connector 54. If the spring valve 1 has a good seal, the pressure sensor at the front end of the detection probe will detect the expected pressure value and display it on the signal analyzer. If the spring valve 1 has an insufficient seal, water will flow from the inlet 14 at the top of the spring valve 1 onto the turntable 21, or water may push open the valve core 17 and flow directly from the inlet 14. In this case, the pressure value detected by the pressure sensor will not reach the expected pressure value.

[0076] When the detection device detects a defective spring valve 1, it directly unloads it in the detection area 5, saving subsequent processing steps. The spring valve 1 unloaded in the detection area 5 will fall directly into the water collection tank 56. Under normal circumstances, the spring valve 1 is a finished product. The turntable 21 continues to drive the spring valve 1 to the drying area 6 to remove the residual moisture and water flow inside the spring valve 1 and prevent corrosion.

[0077] The second drive cylinder 64 operates, extending its piston rod to push the connecting rod 171 of the valve core 17, thus opening the spring valve 1. The blower 62 continuously delivers high-intensity air through the air supply pipe 63 to dry the moisture inside the spring valve 1. Finally, the finished spring valve 1 is transported to the unloading area 7 for unloading.

[0078] The unloading process of the second embodiment is as follows: first, the small self-locking cylinder 34 retracts the piston rod, and the piston rod drives the positioning pin 32 to descend below the table surface of the rotary table 21, canceling the limiting of the flange plate 12. At the same time, the two corner cylinders 33 extend at the same time and reverse the rotation of the piston rod, so that the pressing rod 331 at the end of the piston rod cancels the pressing of the flange plate 12, and the pressing rod 331 moves away from the upper part of the spring valve 1. Then the piston rod of the corner cylinder 33 stops rotating, and the two corner cylinders 33 and the part away from the upper part of the spring valve 1 retract the piston rod to the bottom of the pressing rod 331 close to the table surface of the rotary table 21. Then the two corner cylinders 33 rotate the piston rod towards each other, so that the pressing rod 331 pushes the flange plate 12 part of the spring valve 1 above the rotary table 21, so that the valve body 11 of the spring valve 1 is pushed onto the unloading guide rail 71 and slides down along the unloading guide rail 71, completing the unloading.

[0079] The above unloading process is also applicable to the direct unloading of the defective spring valve 1 in the detection area 5. Under the pushing of the corner cylinder 33, the spring valve 1 in the detection area 5 directly falls into the water collecting tank 56.

[0080] The above are preferred embodiments of the present application, but do not limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A milling and detection integrated device for boiler sootblower spring valve production, comprising a base (2) and a milling device arranged on the base (2), characterized in that: the top of the base (2) is rotatably connected with a horizontally arranged rotary table (21), and the inside of the base (2) is provided with a driving member for driving the rotary table (21) to rotate, and the table top of the rotary table (21) is evenly divided into a plurality of sector-shaped working areas, and further comprising: a positioning groove (31) is arranged on the part of the edge of the rotary table (21) corresponding to each working area, for clamping the valve body (11) of the spring valve (1), the valve body (11) is clamped in the positioning groove (31), the bottom side of the flange plate (12) on the spring valve (1) is attached to the top side of the rotary table (21), and the gas outlet hole of the spring valve (1) faces the outside of the rotary table (21) in the radial direction; a positioning pin (32) is vertically arranged around the part of the positioning groove (31) in each working area, for inserting the disc hole (13) of the flange plate (12) on the spring valve (1); a rotary angle cylinder (33) is arranged near the part of the positioning groove (31) in each working area, for pressing the spring valve (1); the milling device comprises: a mechanical arm (42) is fixed at one end to the base (2) and extends to above a working area of the rotary table (21) at the other end; a milling cutter (43) is arranged on the part of the mechanical arm (42) extending to above the rotary table (21), the spring valve (1) is switched to below the milling cutter (43) by rotating the working area of the rotary table (21), the front end of the mechanical arm (42) is provided with the milling cutter (43), the milling cutter (43) is in a cylindrical shape, when the spring valve (1) is rotated to below the mechanical arm (42) with the rotary table (21), the milling cutter (43) at the front end of the mechanical arm (42) feeds downward, inserts the spring valve (1) from the air inlet (14), the outer wall of the cylindrical milling cutter (43) abuts against the inner wall of the valve body (11) of the spring valve (1), the inner wall of the milling cutter (43) abuts against the outer wall of the inner connecting part (16) of the spring valve (1), and the two milling surfaces are milled at the same time; further comprising: a detection pipeline (52) extends to below a working area of the rotary table (21) at one end, is matched with the gas outlet (15) of the spring valve (1), and is used for conveying gas and liquid into the spring valve (1); a detection probe extends to below the rotary table (21) and extends into the spring valve (1) with the detection pipeline (52), and is used for pressure measurement; an air supply pipeline (63) is connected with a fan (62) at one end and extends to above a working area of the rotary table (21) at the other end and is matched with the air inlet (14) of the spring valve (1); a top rod is vertically arranged below the rotary table (21) corresponding to the air supply pipeline (63), and is used for pushing the valve core (17) to open the spring valve (1); a blanking guide rail (71) is obliquely arranged downward in the part of the base (2) corresponding to the working area of the rotary table (21), the top end of the blanking guide rail (71) is not higher than the height of the rotary table (21), and is used for guiding the spring valve (1) to slide off from the rotary table (21). Further comprising: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2. The integrated device for milling and detecting for the production of a spring valve for a boiler soot blower according to claim 1, characterized in that: ​ Overflow groove (22) is opened in the part of the rotary table (21) table near each positioning groove (31), surrounds the positioning groove (31), is used for receiving the liquid overflowed from the water inlet of the spring valve (1); The water collecting groove (56) is arranged below the base (2) corresponding to the detection pipeline (52), which is used for collecting the liquid flowing out of the spring valve (1).

3. The integrated device for milling and detecting for the production of spring valve for boiler soot blower according to claim 1, characterized in that: The positioning pin (32) penetrates through the rotary table (21), and the bottom side of the rotary table (21) is provided with a driving member for driving the vertical movement of the positioning pin (32), and the driving member drives the top end of the positioning pin (32) to move downward to be flush with the rotary table (21) table, canceling the restriction on the upper flange plate (12) of the spring valve (1).

4. The integrated device for milling and detecting for the production of spring valve for boiler soot blower according to claim 1, characterized in that: The working area corresponding to the milling and grinding device, the working area corresponding to the detection pipeline (52), the working area corresponding to the air supply pipeline (63), and the working area corresponding to the blanking guide rail (71) on the rotary table (21) are sequentially adjacent, and constitute a complete milling and grinding detection production line.

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