Filter element cover automatic feeding, overturning and tightening device suitable for urea pump production line

Abstract

The invention relates to an automatic filter element cover feeding, overturning and tightening device suitable for a urea pump production line, which comprises a clamping mechanism, a feeding device, a cover tightening device, a screw rod sliding rail, an overturning device and a working platform, and the cover tightening device, the screw rod sliding rail and the overturning device are all mounted on the working platform; the clamping mechanism is used for placing the urea pump assembly on the turnover device, the turnover device is used for clamping and fixing the urea pump assembly and driving the urea pump assembly to turn over from the horizontal state to the vertical state, and the clamping mechanism is used for clamping a filter element rubber rod and installing the filter element rubber rod on the turned urea pump assembly. The screw rod sliding rail is used for driving the cap screwing device to move to clamp and move the filter element cap and mount the filter element cap on the urea pump assembly to obtain a urea pump assembly; according to the urea pump filter element cover assembling machine, the assembling process of a urea pump filter element cover is optimized through an intelligent technology, and a more efficient, more accurate and lower-energy-consumption automatic production mode is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of automatic assembly equipment for urea pumps, in particular to an automatic feeding, turning and tightening device for a filter element cover suitable for a urea pump production line. Background Art

[0002] The urea pump is a key component in a diesel engine's SCR system, and filter cover assembly is a critical process that impacts product sealing and reliability. Currently, manual or semi-automatic methods are often used, resulting in high labor intensity, low production efficiency, insufficient feeding accuracy, and unstable tightening torque, all of which impact assembly quality and sealing reliability. Existing equipment has limited automation and poor flexibility, making it difficult to meet the demands of efficient production. Therefore, an intelligent, high-precision, and flexible automatic feeding and tightening device is needed to improve assembly quality and production efficiency while reducing labor reliance and maintenance costs. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that manual or semi-automatic methods have high labor intensity, low production efficiency, insufficient feeding accuracy, and unstable tightening torque. The existing equipment has a limited automation level and poor flexibility and adaptability, making it difficult to meet the needs of efficient production. In response to the above shortcomings, an automatic feeding, flipping and tightening device for filter element covers suitable for urea pump production lines is provided.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] The filter element cover is automatically fed to the filter element by the feed mechanism, and the filter element cover is automatically fed to the filter element by the feed mechanism, and the filter element cover is automatically fed to the filter element by the feed mechanism, and the filter element cover is automatically fed to the filter element by the feed mechanism, and the filter element cover is automatically fed to the filter element by the feed mechanism, and the filter element cover is automatically fed to the filter element by the feed mechanism, and the filter element cover is automatically fed to the filter element by the feed mechanism, and the filter element cover is automatically fed to the filter element by the feed mechanism, and the filter element cover is automatically fed to the filter element by the feed mechanism, and the filter element cover is automatically fed to the filter element by the feed mechanism, and the filter element cover is automatically fed to the filter element by the feed mechanism, and the filter element cover is automatically fed to the filter element by the feed mechanism, and the filter element cover is automatically fed to the filter element by the feed mechanism, and the filter element cover is automatically fed to the filter element by the feed mechanism, and the filter element cover is automatically fed to the filter element by the feed mechanism, and the filter element cover is automatically fed to the filter element by the feed mechanism, and the filter element cover is automatically fed to the filter element by the feed mechanism, and the filter element cover is automatically fed to the filter element by the feed mechanism, and the filter element cover is automatically fed to the filter element by the feed mechanism, and the filter element cover is automatically fed to the filter element by the feed mechanism, and the filter element cover is automatically fed to the filter element by the feed mechanism, and the filter element

[0006] Furthermore, the clamping mechanism includes a first manipulator and a second manipulator, the first manipulator is used to clamp the urea pump assembly and place it on the flipping device, the first manipulator is also used to clamp the filter element rubber rod and install it on the urea pump assembly after the urea pump assembly is fixed and flipped, and the second manipulator is used to clamp the urea pump assembly with the filter element cover and the filter element rubber rod installed to the next workstation.

[0007] Furthermore, the feeding device includes a frame, multiple material racks, a pushing cylinder, a belt conveyor line, an intercepting cylinder, a clamping positioning cylinder, a cover plate and a limit rod. Multiple material racks for stacking filter element covers are arranged side by side on the frame, and multiple material racks are provided with a pushing cylinder. A belt conveyor line passing under the output ends of multiple material racks is provided on the frame. A through hole is opened at the front end of the material rack for dropping the filter element cover onto the belt conveyor line. The pushing cylinder pushes one filter element cover in the cavity to the through hole at a time and drops it onto the belt conveyor line. On the belt conveyor line, after the pushing end of the pushing cylinder retracts, the next filter element cover enters the cavity from the leakage hole, and the pushing cylinder pushes the filter element cover to the belt conveyor line again. The tail end of the belt conveyor line is sequentially installed with an intercepting cylinder and a clamping positioning cylinder. The material rack is provided with a cover plate located in front of the pushing end of the pushing cylinder. The cover plate is used to limit the number of filter element covers pushed by the pushing cylinder at one time. A cavity is formed between the cover plate and the material rack, and the cavity can only accommodate one filter element cover at a time. A leakage hole for leaking the filter element cover is opened on the top of the cover plate, and vertical holes are arranged around the through hole. A plurality of limit rods are provided for limiting the movement of the filter cartridge cover, and the plurality of filter cartridge covers are stacked and placed between the plurality of limit rods. A first sensor is provided on the cover plate for detecting whether there is a filter cartridge cover in the cavity. The pushing cylinder is used to push the filter cartridge cover to the through hole and drop it onto the belt conveyor line after the first sensor detects the filter cartridge cover. The belt conveyor line is provided with a plurality of second sensors for detecting the number of filter cartridge covers stacked on the material rack. When the number of filter cartridge covers is less than the set number, the second sensor controls the warning light to light up, reminding the staff to add the filter cartridge cover in time. The feed end and the discharge end of the intercepting cylinder are respectively provided with a third sensor for detecting whether there is a filter cartridge cover at the feed end of the cylinder and a fourth sensor for detecting whether the discharge end of the cylinder has passed the filter cartridge cover. The intercepting cylinder is used to extend and intercept subsequent filter cartridge covers after both the third sensor and the fourth sensor detect the filter cartridge cover, allowing only one filter cartridge cover to pass through at a time. A fifth sensor for detecting whether the filter cartridge cover reaches the clamping position is provided at the clamping positioning cylinder. The clamping positioning cylinder is used to extend and clamp the filter cartridge cover to the clamping position after the fifth sensor detects the filter cartridge cover.

[0008] Furthermore, the capping device includes a capping motor, a pressing and resetting cylinder, a capping fixture, a cylinder support frame, a connecting plate, a precision reducer, a stabilizing plate and a first buffer. The screw slide is provided with a cylinder support frame, and the cylinder support frame is provided with a pressing and resetting cylinder for pushing the connecting plate up or down. The connecting plate is slidably connected to multiple support columns of the cylinder support frame. The connecting plate is provided with a capping motor for driving the capping fixture to rotate. The output end of the capping motor is provided with a capping fixture for clamping the filter element cover. The output end of the capping motor is provided with a precision reducer for reducing the speed of the capping fixture. The bottom of the connecting plate is provided with a A stabilizing plate is provided, and a first buffer is provided at the bottom of the cylinder support frame. The stabilizing plate is used to reduce the descending speed of the screw cap clamp after contacting the first buffer so that the screw cap clamp can be stably pressed into the filter element cover. The outer surface of the screw cap clamp is a circle that matches the inner surface of the outer ring of the screw cap. A plurality of elastic metal sheets are provided on the outer surface of the screw cap clamp. When the screw cap clamp is pressed into the filter element cover, the elastic metal sheets contact the inner surface of the filter element cover to generate an elastic extrusion force to clamp the filter element cover. The inner surface of the screw cap clamp is a ring tooth that matches the outer surface of the inner ring of the filter element cover. When the screw cap clamp is rotated to screw the filter element cover into the urea pump assembly, the ring teeth can prevent relative sliding between the screw cap clamp and the filter element cover.

[0009] The pressing and resetting cylinder is used for retracting upward after the filter cartridge cover is screwed into the urea pump assembly, driving the screw cap clamp to move out of the filter cartridge cover and reset it.

[0010] Furthermore, the flip device includes a base, a flip mounting plate, a pressing cylinder, a telescopic cylinder, a positioning pin and a second buffer. The base is rotatably connected to a flip mounting plate for placing a urea pump assembly. The flip mounting plate is provided with a pressing cylinder for clamping and fixing the urea pump assembly. The base is provided with a telescopic cylinder for pushing the flip mounting plate to flip back and forth. The flip mounting plate is provided with a plurality of positioning pins for locating the installation position of the urea pump assembly and eliminating radial tolerances. The base is provided with a second buffer for smoothly resetting the flip mounting plate.

[0011] The pressing cylinder is used to rotate and press down to fix the urea pump assembly after the sensor detects the urea pump assembly. The telescopic cylinder is used to contract to transform the flip mounting plate from a horizontal state to a vertical state after the pressing cylinder fixes the urea pump assembly. The telescopic cylinder is used to extend to transform the flip mounting plate from a horizontal state to a vertical state after the filter element rubber rod and the filter element cover are installed. The pressing cylinder is used to release the fixation of the urea pump assembly after the sensor detects that the flip mounting plate has transformed from a vertical state to a horizontal state.

[0012] Furthermore, a control box is provided on the frame, and the control box is used to start and control the entire feeding, capping and installation process.

[0013] After adopting the above technical solution, the present invention has the following advantages compared with the prior art:

[0014] This invention uses intelligent technology to optimize the assembly process of urea pump filter covers, achieving a more efficient, precise, and energy-efficient automated production method. Compared with existing processes, the automated feeding, flipping, and tightening processes significantly reduce manual operation time, enabling continuous and efficient production to meet the needs of large-scale industrialization. The design of multiple material racks for cyclic feeding eliminates frequent manual feeding and improves the equipment's continuous operation capability. By setting an intercepting cylinder to control the passage of only one filter cover at a time, interference between multiple filter covers is avoided, ensuring that each filter cover can be precisely positioned and clamped.

[0015] The present invention is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the feeding device;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the material rack;

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the capping device;

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the flipping device in the flipping state;

[0021] Figure 6 This is a three-dimensional structural diagram of the flip mounting plate.

[0022] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0023] 1. Feeding device; 101. Frame; 102. Material rack; 103. Pushing cylinder; 104. Belt conveyor line; 105. Intercepting cylinder; 106. Clamping and positioning cylinder; 107. Cover plate; 108. Limit rod; 2. Capping device; 201. Capping motor; 202. Pressing and resetting cylinder; 203. Capping fixture; 204. Cylinder support frame; 205. Connecting plate; 206. Precision reducer; 207. Stabilizing plate; 208. First buffer; 3. Screw guide rail; 4. Flipping device; 401. Base; 402. Flip mounting plate; 403. Pressing cylinder; 404. Telescopic cylinder; 405. Locating pin; 406. Second buffer; 407. Air pipe fixing block; 5. Working platform; 6. Control box. DETAILED DESCRIPTION

[0024] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", "clockwise" and "counterclockwise" and the like to indicate directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0026] like Figure 1-6 As shown, an automatic feeding, flipping and tightening device for filter element cover of urea pump production line includes a clamping mechanism, a feeding device 1, a capping device 2, a screw guide rail 3, a flipping device 4 and a working platform 5. The capping device 2, the screw guide rail 3 and the flipping device 4 are all installed on the working platform 5. The clamping mechanism is used to clamp the urea pump assembly from the previous station and place it on the flipping device 4. The flipping device 4 is used to clamp and fix the urea pump assembly and drive the urea pump assembly from the water before assembling the filter element rubber rod and the filter element cover. Flip it horizontally to a vertical state, the clamping mechanism is used to clamp the filter element rubber rod and install it on the flipped urea pump assembly, the feeding device 1 is used to transport the filter element covers to the loading position one by one, the screw slide 3 is used to drive the capping device 2 to move horizontally and clamp the filter element cover at the loading position and move it and install it on the urea pump assembly after the filter element rubber rod is installed to obtain a urea pump assembly; the flipping device 4 is used to drive the urea pump assembly to flip from the vertical state back to the horizontal state, and the clamping mechanism is used to move the urea pump assembly to the next station.

[0027] As an embodiment, the clamping mechanism includes a first manipulator and a second manipulator, the first manipulator is used to clamp the urea pump assembly and place it on the flipping device 4, the first manipulator is also used to clamp the filter element rubber rod and install it on the urea pump assembly after the urea pump assembly is fixed and flipped, and the second manipulator is used to clamp the urea pump assembly with the filter element cover and the filter element rubber rod installed to the next workstation.

[0028] As an embodiment, the feeding device 1 includes a frame 101, multiple material racks 102, a pushing cylinder 103, a belt conveyor line 104, an intercepting cylinder 105, a clamping positioning cylinder 106, a cover plate 107 and a limiting rod 108. The frame 101 is provided with multiple material racks 102 for stacking filter element covers, and multiple material racks 102 are provided with a pushing cylinder 103. The frame 101 is provided with a belt conveyor line 104 passing under the output ends of the multiple material racks 102. The front end of the material rack 102 is provided with a through hole for dropping the filter element cover onto the belt conveyor line 104. The pushing cylinder 103 pushes one filter element cover in the cavity to the through hole at a time and drops it onto the belt conveyor line 104. After the pushing end of the pushing cylinder 103 retracts, the next filter element cover enters the cavity from the leak hole. The pushing cylinder 103 pushes the filter element cover onto the belt conveyor line 104 again. The tail end of the belt conveyor line 104 is sequentially installed with an intercepting cylinder 105 and a clamping positioning cylinder 106. The material rack 102 is provided with a cover plate 107 located in front of the pushing end of the pushing cylinder 103. The cover plate 107 is used to limit the number of filter element covers pushed by the pushing cylinder 103 at one time. A cavity is formed between the cover plate 107 and the material rack 102 and the cavity can only accommodate one filter element at a time. A filter element cover is provided, and a leakage hole for leaking the filter element cover is provided on the top of the cover plate 107. A plurality of limit rods 108 for limiting the movement of the filter element cover are vertically arranged around the through hole. A plurality of filter element covers are stacked and placed between the plurality of limit rods 108. A first sensor for detecting whether there is a filter element cover in the cavity is provided on the cover plate 107. The pushing cylinder 103 is used to push the filter element cover to the through hole and drop it onto the belt conveyor line after the first sensor detects the filter element cover. A plurality of second sensors for detecting the number of filter element covers stacked on the material rack 102 are provided on the belt conveyor line 104. When the number of filter element covers is less than the set number, the second sensor controls the alarm. The indicator light lights up to remind the staff to add the filter cartridge cover in time. The feed end and discharge end of the intercepting cylinder 105 are respectively provided with a third sensor for detecting whether there is a filter cartridge cover at the feed end of the cylinder and a fourth sensor for detecting whether the discharge end of the cylinder has passed the filter cartridge cover. The intercepting cylinder 105 is used to extend to intercept subsequent filter cartridge covers after the third sensor and the fourth sensor both detect the filter cartridge cover, allowing only one filter cartridge cover to pass through at a time. The clamping and positioning cylinder 106 is provided with a fifth sensor for detecting whether the filter cartridge cover reaches the clamping position. The clamping and positioning cylinder 106 is used to extend to clamp the filter cartridge cover to the clamping position after the fifth sensor detects the filter cartridge cover.

[0029] As an embodiment, the capping device 2 includes a capping motor 201, a pressing and resetting cylinder 202, a capping fixture 203, a cylinder support frame 204, a connecting plate 205, a precision reducer 206, a stabilizing plate 207 and a first buffer 208. The screw slide 3 is provided with a cylinder support frame 204, and the cylinder support frame 204 is provided with a pressing and resetting cylinder 202 for pushing the connecting plate 205 up or down. The connecting plate 205 is slidably connected to multiple support columns of the cylinder support frame 204. The connecting plate 205 is provided with a capping motor 201 for driving the capping fixture 203 to rotate. The output end of the capping motor 201 is provided with a capping fixture 203 for clamping the filter element cover. The output end of the capping motor 201 is provided with a precision reducer for reducing the rotation speed of the capping fixture 203. The reducer 206, a stabilizing plate 207 is provided at the bottom of the connecting plate 205, and a first buffer 208 is provided at the bottom of the cylinder support frame 204. The stabilizing plate 207 is used to reduce the descending speed of the screw cap fixture 203 after contacting the first buffer 208 so that the screw cap fixture 203 can be stably pressed into the filter element cover. The outer surface of the screw cap fixture 203 is a circle that matches the inner surface of the outer ring of the screw cap. A plurality of elastic metal sheets are provided on the outer surface of the screw cap fixture 203. When the screw cap fixture 203 is pressed into the filter element cover, the elastic metal sheets contact the inner surface of the filter element cover to generate an elastic extrusion force to clamp the filter element cover. The inner surface of the screw cap fixture 203 is a ring tooth that matches the outer surface of the inner ring of the filter element cover. When the screw cap fixture 203 rotates to screw the filter element cover into the urea pump assembly, the ring teeth can prevent relative sliding between the screw cap fixture 203 and the filter element cover.

[0030] The screw slide 3 is used to drive the screw capping device to move to the filter cap clamping position after the clamping positioning cylinder 106 clamps the filter cap, and the pressing and resetting cylinder 202 is used to extend downward after moving to the filter cap clamping position to push the connecting plate 205 to move a specified distance, and the connecting plate is used to drive the screw cap clamp 203 to move a specified distance and press into the interior of the filter cap, and the pressing and resetting cylinder 202 is used to retract upward after the screw cap clamp 203 is pressed into the interior of the filter cap to pull the connecting plate 205 to reset and drive the screw cap clamp 203 to clamp the filter cap, and the screw slide The rail 3 is used to drive the capping device 2 to move to the designated position for installing the filter element cover after the connecting plate 205 is reset. The pressing and resetting cylinder 202 is used to extend downward after reaching the designated position for installing the filter element cover to drive the capping fixture 203 to move downward to the designated position. The capping motor 201 is used to drive the capping fixture 203 to rotate while the capping fixture 203 moves downward to screw the filter element cover into the urea pump assembly. The pressing and resetting cylinder 202 is used to retract upward after the filter element cover is screwed into the urea pump assembly to drive the capping fixture 203 to move out of the filter element cover and reset it.

[0031] Specifically, the connecting plate 205 is slidingly connected to the cylinder support frame 204, the output end of the precision reducer 206 is connected to a coupling, the other end of the coupling is connected to a fixed shaft, the fixed shaft is rotationally connected to the connecting plate, and the output end of the fixed shaft is fixedly connected to the rotary cap fixture 203.

[0032] As an embodiment, the flip device 4 includes a base 401, a flip mounting plate 402, a pressing cylinder 403, a telescopic cylinder 404, a positioning pin 405 and a second buffer 406. The base 401 is rotatably connected to the flip mounting plate 402 for placing the urea pump assembly. The flip mounting plate 402 is provided with a pressing cylinder 403 for clamping and fixing the urea pump assembly. The base 401 is provided with a telescopic cylinder 404 for pushing the flip mounting plate 402 to flip back and forth. The flip mounting plate 402 is provided with a plurality of positioning pins 405 for locating the installation position of the urea pump assembly and eliminating radial tolerances. The base 401 is provided with a second buffer 406 for smoothly resetting the flip mounting plate 402.

[0033] The pressing cylinder 403 is used to rotate and press down to fix the urea pump assembly after the sensor detects the urea pump assembly. The telescopic cylinder 404 is used to contract and transform the flip mounting plate 402 from a horizontal state to a vertical state after the pressing cylinder 403 fixes the urea pump assembly. The telescopic cylinder 404 is used to extend and transform the flip mounting plate 402 from a horizontal state to a vertical state after the filter element rubber rod and the filter element cover are installed. The pressing cylinder 403 is used to release the fixation of the urea pump assembly after the sensor detects that the flip mounting plate has transformed from a vertical state to a horizontal state.

[0034] Specifically, an air pipe fixing block 407 is further provided on the flip mounting plate 402 .

[0035] As an embodiment, a control box 6 is provided on the frame 101 , and the control box 6 is used to start and control the entire feeding, capping and installation process.

[0036] The workflow of the present invention is as follows:

[0037] The staff stacks the materials on multiple material racks 102, presses the start switch on the control box 6, and the cylinder and sensor on the feeding device 1 start working.

[0038] The first manipulator places the urea pump assembly on the flip mounting plate 402, and multiple positioning pins 405 are respectively inserted into the inner sides of multiple positioning holes of the urea pump assembly to eliminate radial tolerance. The clamping cylinder 403 presses and fixes the urea pump assembly, and the telescopic cylinder 404 pulls the flip mounting plate 402 to flip 90 degrees. After the sensor detects that the urea pump assembly is flipped, the first manipulator clamps the filter element rubber rod from the filter element rubber rod tray and installs it on the urea pump assembly.

[0039] When it is necessary to convey the filter element cover, the pushing cylinder 103 on the material rack 102 near the tail end of the belt conveyor line 104 is pushed first, and the first sensor sends a start pushing signal to the pushing cylinder 103, and the pushing cylinder 103 starts to push the filter element covers on the material rack 102 one at a time onto the belt conveyor line 104. When the number of filter element covers is less than the specified number, the corresponding second sensor lights up red to remind the staff to add filter element covers in time. After the filter element cover on the first material rack 102 is pushed, the first sensor sends a stop pushing signal to the pushing cylinder 103, and the first material rack 102 waits for the staff to add filter element covers. The first sensor on the next adjacent material rack 102 controls the pushing cylinder 103 to start pushing the filter element covers until the filter element covers on the last material rack 102 are pushed, and a new round of pushing cycle begins.

[0040] The belt conveyor line 104 sequentially conveys the filter element cover to the tail end. After the third sensor detects the filter element cover, it sends a preparation interception signal to the interception cylinder 105. After the fourth sensor detects the filter element cover, it sends an interception signal to the interception cylinder 105. The interception cylinder 105 intercepts the filter element cover on the belt conveyor line 104, and only lets one filter element cover move to the clamping positioning cylinder 106 at a time. The clamping positioning cylinder 106 clamps the filter element cover and positions it. After the filter element cover is positioned, the fifth sensor sends a clamping signal to the screw slide rail 3 and the cover screwing device 2.

[0041] The screw slide 3 drives the capping device 2 to move to the clamping position at the front end of the screw slide 3, and the clamping and resetting cylinder 202 pushes the connecting plate 205 down. After the stabilizing plate 207 contacts the first buffer 208, the descending speed of the capping clamp 203 is reduced. The clamping and resetting cylinder 202 is started to drive the capping clamp 203 to press the filter element cover. The elastic metal sheet on the capping clamp 203 clamps the filter element cover through the elastic extrusion force. The clamping and resetting cylinder 202 pushes the connecting plate 205 to rise and clamp the filter element cover. At the same time, the fifth sensor sends a release signal to the intercepting cylinder 105, and the intercepting cylinder 105 releases a filter element cover to the clamping positioning cylinder 106.

[0042] After the filter element rubber rod is installed, the screw slide 3 drives the capping device 2 to move to the installation position at the rear end of the screw slide 3, and the capping fixture 203 is aligned with the installation position on the urea pump assembly. The pressing and resetting cylinder 202 pushes the connecting plate 205 to descend, and the capping motor 201 drives the capping fixture 203 to screw the filter element cover into the urea pump assembly and tighten it. The pressing and resetting cylinder 202 pushes the connecting plate 205 to rise and pull the capping fixture 203 out of the filter element cover. The telescopic cylinder 404 pushes the flip mounting plate 402 to reset, and the pressing cylinder 403 releases the fixation of the urea pump assembly. The second manipulator clamps the assembled urea pump assembly to the next process.

[0043] The first manipulator clamps the new urea pump assembly and filter element rubber rod, repeats the installation action of the urea pump assembly and the filter element rubber rod, and the screw slide 3 drives the cover screwing device 2 to move to the front end clamping position of the screw slide 3 again, and repeats the clamping action and installation action of the filter element cover.

[0044] The foregoing is an example of the best mode of carrying out the present invention. Any portion not described in detail herein is common knowledge within the skill of one of ordinary skill in the art. The scope of protection of the present invention is determined by the claims. Any equivalent transformation based on the technical teachings of the present invention is also within the scope of protection of the present invention.

Claims

1. A filter cover automatic feeding, turning and tightening device suitable for urea pump production line, characterized in that: The invention comprises a clamping mechanism, a feeding device (1), a capping device (2), a screw guide rail (3), a flipping device (4) and a working platform (5), wherein the capping device (2), the screw guide rail (3) and the flipping device (4) are all mounted on the working platform (5), the clamping mechanism is used to clamp the urea pump assembly from the previous station and place it on the flipping device (4), and the flipping device (4) is used to clamp and fix the urea pump assembly and drive the urea pump assembly to flip from a horizontal state to a vertical state before assembling the filter element rubber rod and the filter element cover The clamping mechanism is used to clamp the filter element rubber rod and install it on the flipped urea pump assembly. The feeding device (1) is used to transport the filter element covers to the loading position one by one. The screw slide rail (3) is used to drive the cap screwing device (2) to move horizontally to clamp and move the filter element cover at the loading position and install it on the urea pump assembly after the filter element rubber rod is installed to obtain a urea pump assembly. The flipping device (4) is used to drive the urea pump assembly to flip from a vertical state to a horizontal state. The clamping mechanism is used to move the urea pump assembly to the next workstation.

2. The automatic feeding, turning and tightening device for filter element cover suitable for urea pump production line according to claim 1 is characterized in that: The clamping mechanism comprises a first manipulator and a second manipulator, wherein the first manipulator is used to clamp the urea pump assembly and place it on the turning device (4); the first manipulator is also used to clamp the filter element rubber rod and install it on the urea pump assembly after the urea pump assembly is fixed and turned over; and the second manipulator is used to clamp the urea pump assembly with the filter element cover and the filter element rubber rod installed to the next workstation.

3. The automatic feeding, turning and tightening device for filter element cover suitable for urea pump production line according to claim 1 is characterized in that: The feeding device (1) comprises a frame (101), a plurality of material racks (102), a pushing cylinder (103), a belt conveyor line (104), an intercepting cylinder (105), a clamping positioning cylinder (106), a cover plate (107) and a limiting rod (108); a plurality of material racks (102) for stacking filter element covers are arranged side by side on the frame (101); a pushing cylinder (103) is arranged on each of the plurality of material racks (102); a belt conveyor line (104) passing below the output ends of the plurality of material racks (102) is arranged on the frame (101); a front end of the material rack (102) is provided with a cylinder for dropping the filter element covers onto the belt conveyor line (104); The pushing cylinder (103) pushes one filter element cover in the cavity to the through hole at a time and drops it onto the belt conveyor line (104). After the pushing end of the pushing cylinder (103) retracts, the next filter element cover enters the cavity from the leak hole. The pushing cylinder (103) pushes the filter element cover onto the belt conveyor line (104) again. The tail end of the belt conveyor line (104) is sequentially installed with an intercepting cylinder (105) and a clamping positioning cylinder (106). The material rack (102) is provided with a cover plate (107) located in front of the pushing end of the pushing cylinder (103). The cover plate (107) is used to limit the number of filter element covers pushed by the pushing cylinder (103) at one time. The cover plate (107) and the material rack (10 2) forms a cavity between the two filter elements and the cavity can only accommodate one filter element cover at a time, a leakage hole is provided on the top of the cover plate (107) for leaking the filter element cover, a plurality of limit rods (108) are vertically arranged around the through hole for limiting the movement of the filter element cover, and a plurality of filter element covers are stacked and placed between the plurality of limit rods (108), a first sensor is provided on the cover plate (107) for detecting whether a filter element cover exists in the cavity, a pushing cylinder (103) is used to push the filter element cover to the through hole and drop it onto the belt conveyor line after the first sensor detects the filter element cover, and a plurality of second sensors are provided on the belt conveyor line (104) for detecting the number of filter element covers stacked on the material rack (102). When the number of filter element covers is less than a set number, the filter element covers are stacked. The second sensor controls the warning light to light up, reminding the staff to add the filter cover in time. The feed end and the discharge end of the interception cylinder (105) are respectively provided with a third sensor for detecting whether there is a filter cover at the feed end of the cylinder and a fourth sensor for detecting whether the discharge end of the cylinder has passed the filter cover. The interception cylinder (105) is used to extend to intercept the subsequent filter cover after the third sensor and the fourth sensor both detect the filter cover, and only allow one filter cover to pass through each time. The clamping and positioning cylinder (106) is provided with a fifth sensor for detecting whether the filter cover reaches the clamping position. The clamping and positioning cylinder (106) is used to extend to clamp the filter cover to the clamping position after the fifth sensor detects the filter cover.

4. The automatic feeding, turning and tightening device for filter element cover suitable for urea pump production line according to claim 1 is characterized in that: The capping device (2) comprises a capping motor (201), a pressing and resetting cylinder (202), a capping fixture (203), a cylinder support frame (204), a connecting plate (205), a precision reducer (206), a stabilizing plate (207) and a first buffer (208). The screw guide rail (3) is provided with a cylinder support frame (204), and the cylinder support frame (204) is provided with a spring for pushing the connecting plate (205) up or down. The resetting cylinder (202) is pressed, the connecting plate (205) and the plurality of supporting columns of the cylinder support frame (204) are all slidably connected, the connecting plate (205) is provided with a capping motor (201) for driving the capping clamp (203) to rotate, the output end of the capping motor (201) is provided with a capping clamp (203) for clamping the filter element cover, and the output end of the capping motor (201) is provided with a speed reducing mechanism for reducing the rotation speed of the capping clamp (203). A precision reducer (206) is provided, a stabilizing plate (207) is provided at the bottom of the connecting plate (205), a first buffer (208) is provided at the bottom of the cylinder support frame (204), the stabilizing plate (207) is used to reduce the descending speed of the screw cap fixture (203) after contacting the first buffer (208) so that the screw cap fixture (203) can be stably pressed into the filter element cover, and the outer surface of the screw cap fixture (203) is a circular shape that matches the inner surface of the outer ring of the screw cap. The outer surface of the screw cap clamp (203) is provided with a plurality of elastic metal sheets. When the screw cap clamp (203) is pressed into the filter element cover, the elastic metal sheets contact the inner surface of the filter element cover to generate elastic extrusion force to clamp the filter element cover. The inner surface of the screw cap clamp (203) is a ring tooth adapted to the outer surface of the inner ring of the filter element cover. When the screw cap clamp (203) is rotated to screw the filter element cover into the urea pump assembly, the ring tooth can prevent relative sliding between the screw cap clamp (203) and the filter element cover. The screw guide rail (3) is used to drive the cap screwing device to move to the filter cover clamping position after the clamping positioning cylinder (106) clamps the filter cover. The pressing and resetting cylinder (202) is used to extend downward to push the connecting plate (205) to move a specified distance after moving to the filter cover clamping position. The connecting plate is used to drive the cap screwing fixture (203) to move a specified distance and press into the interior of the filter cover. The pressing and resetting cylinder (202) is used to retract upward to pull the connecting plate (205) to reset and drive the cap screwing fixture (203) to clamp the filter cover after the cap screwing fixture (203) is pressed into the interior of the filter cover. The screw guide rail (3) is used to drive the capping device (2) to move to the designated installation position of the filter element cover after the connection plate (205) is reset, the pressing and resetting cylinder (202) is used to extend downward after reaching the designated installation position of the filter element cover to drive the capping clamp (203) to move downward to the designated position, the capping motor (201) is used to drive the capping clamp (203) to rotate while the capping clamp (203) moves downward to screw the filter element cover into the urea pump assembly, and the pressing and resetting cylinder (202) is used to retract upward after the filter element cover is screwed into the urea pump assembly to drive the capping clamp (203) to move out of the filter element cover and reset.

5. The automatic feeding, turning and tightening device for filter element cover suitable for urea pump production line according to claim 1 is characterized in that: The flipping device (4) comprises a base (401), a flip mounting plate (402), a pressing cylinder (403), a telescopic cylinder (404), a positioning pin (405) and a second buffer (406); the flip mounting plate (402) for placing a urea pump assembly is rotatably connected to the base (401); the flip mounting plate (402) is provided with a pressing cylinder (403) for clamping and fixing the urea pump assembly; the base (401) is provided with a telescopic cylinder (404) for pushing the flip mounting plate (402) to flip back and forth; the flip mounting plate (402) is provided with a plurality of positioning pins (405) for locating the installation position of the urea pump assembly and eliminating radial tolerance; the base (401) is provided with a second buffer (406) for allowing the flip mounting plate (402) to smoothly return to its original position; The pressing cylinder (403) is used to rotate and press down to fix the urea pump assembly after the sensor detects the urea pump assembly. The telescopic cylinder (404) is used to contract to transform the flip mounting plate (402) from a horizontal state to a vertical state after the pressing cylinder (403) fixes the urea pump assembly. The telescopic cylinder (404) is used to extend to transform the flip mounting plate (402) from a horizontal state to a vertical state after the filter element rubber rod and the filter element cover are installed. The pressing cylinder (403) is used to release the fixation of the urea pump assembly after the sensor detects that the flip mounting plate has transformed from a vertical state to a horizontal state.

6. The automatic feeding, turning and tightening device for filter element cover suitable for urea pump production line according to claim 2 is characterized in that: A control box (6) is provided on the frame (101), and the control box (6) is used to start and control the entire feeding, capping and installation process.

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