An automatic assembly and welding device for valve sleeve filter screen inside valve

Abstract

The present invention discloses an automatic assembly and welding device for a valve sleeve filter screen in a valve, comprising a welding platform with a plurality of workstations arranged in sequence, wherein a valve sleeve positioning groove and a filter screen positioning groove arranged perpendicularly and crosswise with the valve sleeve positioning groove are arranged on the welding platform at the center position of each workstation; a filter screen picking device is arranged on one side of the welding platform corresponding to the filter screen positioning groove, and the filter screen is placed inside the filter screen positioning groove through the filter screen picking device, and a step-type valve sleeve transplanting device is arranged on the other side of the welding platform corresponding to the valve sleeve positioning groove; a filter screen attaching and assembling device for pushing the filter screen screen to fit on the outside of the valve sleeve is arranged on the welding platform corresponding to each valve sleeve positioning groove and filter screen positioning groove, and a movable welding device is arranged on the top of the valve sleeve positioning groove; the present invention can efficiently and accurately fit the filter screen screen on the outside of the valve sleeve, while avoiding direct force on the valve sleeve, thereby avoiding deformation or damage of the valve sleeve.

Description

Technical Field

[0001] The invention belongs to the technical field of valve body assembly devices, and in particular relates to an automatic assembly and welding device for a valve sleeve filter screen in a valve. Background Art

[0002] When installing the valve core inside the valve sleeve of the gas valve, it is necessary to pre-install the drag rod filter mesh in the installation groove on the outside of the valve sleeve along the circumferential direction. Since the installation space on the outside of the valve sleeve is limited, and the filter mesh installed on the outside of the valve sleeve has position accuracy requirements. In order to ensure the installation position accuracy and orientation requirements of the filter seat, the prior art usually adopts manual bending of the filter mesh along the outer surface of the valve sleeve for installation, but the manual installation of the filter mesh has the defect of very low processing efficiency. The prior art also uses a pressing device such as a pressure roller to squeeze the filter mesh along the outer surface of the valve sleeve so that the filter mesh fits the outside of the valve sleeve. However, when squeezing the filter mesh, the above method also applies a large pressure to the valve sleeve, which can easily cause scratches or damage to the surface of the valve sleeve. Therefore, there is an urgent need for a filter mesh assembly welding device with high processing efficiency, guaranteed position accuracy, and no damage to the valve sleeve. Summary of the invention

[0003] The object of the present invention is to provide an automated assembly and welding device for a valve sleeve filter screen in a valve, which can achieve efficient and accurate fitting of the filter screen on the outside of the valve sleeve, while avoiding direct force on the valve sleeve, thereby avoiding damage to the valve sleeve.

[0004] The present invention is achieved through the following technical solutions:

[0005] An automated assembly and welding device for a valve sleeve filter in a valve comprises a welding platform on which a plurality of workstations are sequentially arranged, wherein a valve sleeve positioning groove and a filter mesh positioning groove perpendicularly intersecting the valve sleeve positioning groove are arranged at the center of each workstation on the welding platform; a filter mesh picking device is arranged on one side of the welding platform corresponding to the filter mesh positioning groove, and the filter mesh is placed inside the filter mesh positioning groove by the filter mesh picking device, and a step-by-step valve sleeve transplanting device is arranged on the other side of the welding platform corresponding to the valve sleeve positioning groove; a filter mesh attaching and assembling device for pushing the filter mesh to fit the filter mesh on the outside of the valve sleeve is arranged on the welding platform corresponding to each valve sleeve positioning groove and filter mesh positioning groove, and a movable welding device is arranged on the top of the valve sleeve positioning groove.

[0006] The filter sheet is picked up by the filter sheet picking device and placed inside the filter sheet positioning groove. Then, the valve sleeve is picked up by the step-by-step valve sleeve transfer device and placed inside the valve sleeve positioning groove. At this time, the valve sleeve is pressed on the top of the filter seat. At this time, the filter sheet is pushed toward the valve sleeve by the filter sheet attachment assembly device, so that the filter sheet is attached to the outside of the valve sleeve along the circumference of the valve sleeve. Then, the joint of the filter sheet is welded by the mobile welding device, and the assembly of the filter sheet on the outside of the valve sleeve is completed.

[0007] Furthermore, in order to better realize the present invention, the filter mesh attaching and assembling device includes a bottom filter mesh pushing device and a side filter mesh pushing device, the bottom filter mesh pushing device is arranged at the top of the valve sleeve positioning groove corresponding to the position of the filter mesh positioning groove, and the pushing end of the bottom filter mesh pushing device passes upward through the valve sleeve positioning groove to be retracted and used to push the filter mesh upward so that the filter mesh is attached to the bottom of the valve sleeve; the side filter mesh pushing devices are symmetrically arranged on both sides of the valve sleeve positioning groove corresponding to the position of the filter mesh positioning groove, and the pushing end of the side filter mesh pushing device is retracted perpendicular to the valve sleeve positioning groove to attach the filter mesh as a whole to the outer surface of the valve sleeve.

[0008] Furthermore, in order to better realize the present invention, the bottom filter screen pushing device includes a vertical pushing cylinder and a bottom pushing block. The vertical pushing cylinder is arranged at the bottom of the valve sleeve positioning groove, and a bottom pushing block is arranged at the end of the push rod of the vertical pushing cylinder. A limiting groove is arranged at the top center of the bottom pushing block corresponding to the outer contour of the valve sleeve, and bottom pushing protrusions are arranged on the two side walls of the limiting groove at the position corresponding to the filter screen positioning groove.

[0009] Furthermore, in order to better realize the present invention, the side filter screen pushing device includes a linear pushing cylinder and a side pushing block. The linear pushing cylinder is arranged on both sides of the valve sleeve positioning groove in a direction perpendicular to the valve sleeve axis. The push rod end of the linear pushing cylinder is provided with a side pushing block. A side pushing protrusion is provided on one side of the side pushing block at a position corresponding to the filter screen positioning groove.

[0010] Furthermore, in order to better implement the present invention, an axial tightening device is provided at one axial end of the valve sleeve positioning groove.

[0011] Furthermore, in order to better realize the present invention, the step-by-step valve sleeve transplanting device includes a step-by-step translation device, an approach translation device, a lifting device, and a valve sleeve pneumatic clamp. The step-by-step translation device moves parallel to the axial direction of the valve sleeve, and the translation portion of the step-by-step translation device is provided with an approach translation device that moves perpendicular to the axial direction of the valve sleeve. The translation portion of the approach translation device is provided with a lifting device that moves in a vertical direction, and the lifting portion of the lifting device is provided with a valve sleeve pneumatic clamp corresponding to the valve sleeve positioning groove.

[0012] Furthermore, in order to better realize the present invention, the filter mesh picking device includes a filter mesh translation device, a filter mesh lifting device, and a filter mesh adsorption device. The filter mesh translation device moves linearly in the valve sleeve positioning groove perpendicular to the axial direction of the valve sleeve, and a filter mesh lifting device is arranged on the translation part of the filter mesh translation device, and a filter mesh adsorption device is arranged on the lifting part of the filter mesh lifting device.

[0013] Furthermore, in order to better realize the present invention, the mobile welding device includes a first translation device, a second translation device, a welding lifting device, and a welding device. The first translation device moves parallel to the direction of the filter mesh positioning groove, and the second translation device is arranged on the translation part of the first translation device. The second translation device moves parallel to the direction of the valve sleeve positioning groove, and the welding lifting device is arranged on the translation part of the second translation device. The welding lifting device is arranged on the lifting part of the welding lifting device.

[0014] Furthermore, in order to better implement the present invention, a visual detection device is provided on one side of the unloading end of the welding platform corresponding to the valve sleeve positioning groove.

[0015] Furthermore, in order to better implement the present invention, a valve sleeve picking device for picking up the valve sleeve and placing the valve sleeve in the valve sleeve positioning groove is provided at the feeding end of the welding platform.

[0016] Furthermore, in order to better implement the present invention, the valve sleeve picking device includes a three-axis moving device, a rotating device is provided on the moving part of the three-axis moving device, and a valve sleeve clamp is provided on the rotating end of the rotating device.

[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0018] The present invention arranges a valve sleeve positioning groove and a filter mesh positioning groove which is perpendicular to the valve sleeve positioning groove on the work station, installs the filter mesh through the filter mesh positioning groove to achieve the positioning of the filter mesh, and installs the valve sleeve through the valve sleeve positioning groove to achieve the positioning of the valve sleeve, thereby effectively ensuring the installation position accuracy between the filter mesh and the valve sleeve; at the same time, the present invention realizes efficient automatic placement of the filter mesh and efficient installation and transportation of the valve sleeve through the cooperation of the filter mesh picking device and the step-by-step valve sleeve transplanting device, thereby greatly improving the assembly efficiency of the filter mesh and the valve sleeve; after ensuring the positional relationship accuracy of the filter mesh and the valve sleeve, the filter mesh is pushed and attached to the outside of the valve sleeve by the filter mesh attaching assembly device in the order of first attaching to the bottom of the valve sleeve and then attaching to the two sides of the valve sleeve, thereby having high assembly efficiency and effectively ensuring the final assembly accuracy of the filter mesh; at the same time, the present invention does not directly apply pressure to the valve sleeve when pushing the filter mesh, and the main force-bearing object is the filter mesh, thereby effectively avoiding deformation and damage of the valve sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the filter sheet attachment and assembly device;

[0021] Figure 3 It is a structural schematic diagram of a step-by-step valve sleeve transplanting device;

[0022] Figure 4 It is a structural schematic diagram of a filter sheet picking device;

[0023] Figure 5 It is a structural schematic diagram of a mobile welding device;

[0024] Figure 6 It is a structural schematic diagram of the valve sleeve picking device;

[0025] Figure 7 It is a structural schematic diagram of the valve sleeve positioning groove and the filter screen positioning groove;

[0026] Figure 8 This is a schematic diagram of the installation of the valve sleeve and the filter screen;

[0027] Fig. 9 It is a schematic diagram of the bottom filter screen pushing device pushing the filter screen;

[0028] Fig.10 It is a schematic diagram of the side filter mesh pushing device pushing the filter mesh.

[0029] Among them: 1- welding platform; 2- filter mesh picking device; 3- step-by-step valve sleeve transplanting device; 4- filter mesh attaching and assembling device; 5- mobile welding device; 6- axial tightening device; 7- valve sleeve picking device; 21- filter mesh translation device; 22- filter mesh lifting device; 23- filter mesh adsorption device; 31- step-by-step translation device; 32- approach translation device; 33- lifting device; 34- valve sleeve pneumatic clamp; 41- bottom filter mesh pushing device; 4 2-side filter mesh pushing device; 51-first translation device; 52-second translation device; 53-welding lifting device; 54-welding device; 71-X-axis translation device; 72-Y-axis translation device; 73-Z-axis lifting device; 74-rotation device; 75-valve sleeve clamp; 411-vertical pushing cylinder; 412-bottom pushing block; 421-linear pushing cylinder; 422-side pushing block; 01-valve sleeve positioning groove; 02-filter mesh positioning groove. DETAILED DESCRIPTION

[0030] Embodiment 1:

[0031] The present embodiment is a valve inner valve sleeve filter automatic assembly and welding device, such as Figure 1 and Figure 2As shown, it includes a welding platform 1 on which several workstations are arranged in sequence, and a valve sleeve positioning groove 01 and a filter mesh positioning groove 02 arranged perpendicularly and crosswise with the valve sleeve positioning groove 01 are arranged on the welding platform 1 at the center of the workstation; a filter mesh picking device 2 is arranged on one side of the welding platform 1 corresponding to the filter mesh positioning groove 02, and the filter mesh is placed inside the filter mesh positioning groove 02 through the filter mesh picking device 2, and a step-type valve sleeve transplanting device 3 is arranged on the other side of the welding platform 1 corresponding to the valve sleeve positioning groove 01; a filter mesh attaching and assembling device 4 for winding the filter mesh around the outside of the valve sleeve is arranged on the welding platform 1 corresponding to each valve sleeve positioning groove 01 and the filter mesh positioning groove 02, and a mobile welding device 5 is arranged on the top of the valve sleeve positioning groove 01.

[0032] One end of the welding platform 1 is the feeding end, and the other end is the unloading end. Several workstations are arranged between the feeding end and the unloading end corresponding to the processing procedures. A valve sleeve positioning groove 01 corresponding to the outer contour of the valve sleeve is arranged at the center of the workstation parallel to the axial direction of the valve sleeve. The valve sleeve is positioned by directly placing the valve sleeve in the valve sleeve positioning groove 01. At the same time, since the filter mesh needs to be wound circumferentially on the outside of the valve sleeve, a filter mesh positioning groove 02 is also arranged perpendicular to the valve sleeve positioning groove 01, so that the filter mesh positioning groove 02 and the valve sleeve positioning groove 01 are mutually perpendicular and cross-penetrated. The number and position of the filter mesh positioning groove 02 correspond to the number and position of the filter mesh that needs to be wound, and the internal contour of the filter mesh positioning groove 02 matches the external contour of the filter mesh.

[0033] When it is necessary to install a filter sheet on the outside of the valve sleeve, first wind the middle filter sheet located in the middle of the outside of the valve sleeve, and then wind the side filter sheets located on both sides of the middle of the outside of the valve sleeve. Figure 7 As shown, three filter mesh positioning grooves 02 are arranged perpendicular to the valve sleeve positioning groove 01, including a middle filter mesh positioning groove corresponding to the middle filter mesh, and side filter mesh positioning grooves arranged on both sides of the middle filter mesh positioning groove. First, the middle filter mesh is sucked and placed inside the middle filter mesh positioning groove by the filter mesh picking device 2, and then the valve sleeve is picked up by the step-by-step valve sleeve transplanting device 3 and the valve sleeve is placed inside the valve sleeve positioning groove 01, so that the valve sleeve is pressed on the top of the middle filter mesh. Then, the middle filter mesh is pushed toward the valve sleeve by the filter mesh attaching assembly device 4, and then the middle filter mesh is pressed against the outside of the valve sleeve by external force, and then the joint of the pressed middle filter mesh is welded by the mobile welding device 5.

[0034] After the winding and welding of the middle filter mesh is completed, the side filter mesh is placed in the two side filter mesh positioning grooves of the next station through the filter mesh picking device 2, and then the valve sleeve is moved to the next station through the step-by-step valve sleeve transfer device 3 and placed inside the valve sleeve positioning groove 01, so that the valve sleeve is pressed on the top of the side filter mesh. Then, the side filter mesh is pushed toward the valve sleeve through the filter mesh attachment assembly device 4, and then the side filter mesh is pressed against the outside of the valve sleeve through external force, and then the joint of the pressed side filter mesh is welded by the moving welding device 5, that is, the assembly of the filter mesh on the outside of the valve sleeve is completed. Then, the processed valve sleeve is picked up by the step-by-step valve sleeve transfer device 3 and moved to the unloading end of the welding platform 1 for unloading.

[0035] Embodiment 2:

[0036] This embodiment is further optimized on the basis of embodiment 1. Figure 2 As shown, the filter mesh sheet attaching and assembling device 4 includes a bottom filter mesh sheet pushing device 41 and a side filter mesh sheet pushing device 42, the bottom filter mesh sheet pushing device 41 is arranged at the top of the valve sleeve positioning groove 01 corresponding to the position of the filter mesh sheet positioning groove 02, and the pushing end of the bottom filter mesh sheet pushing device 41 passes through the valve sleeve positioning groove 01 upward to be extended and retracted for pushing the filter mesh sheet upward so that the filter mesh sheet is attached to the bottom of the valve sleeve; the side filter mesh sheet pushing devices 42 are symmetrically arranged on both sides of the valve sleeve positioning groove 01 corresponding to the position of the filter mesh sheet positioning groove 02, and the pushing end of the side filter mesh sheet pushing device 42 is perpendicular to the valve sleeve positioning groove 01 and retracted to attach the filter mesh sheet as a whole to the outer surface of the valve sleeve.

[0037] like Figure 8 As shown in the figure, when the valve sleeve is just placed on the top of the filter screen, the filter screen is in a flat state. Fig. 9 As shown, the filter mesh is then pushed upward by the bottom filter mesh pushing device 41, so that both sides of the filter mesh are bent and deformed upward and wrap and fit the bottom of the valve sleeve. At this time, the two sides of the filter mesh are overall U-shaped under the action of the upward external force.

[0038] like Fig.10 As shown, the two sides of the U-shaped filter sheet are pushed toward each other by the side filter sheet pushing devices 42, so that the U-shaped filter sheet is wrapped and attached to the outside of the valve sleeve along the circumference of the valve sleeve, thereby realizing the winding of the filter sheet, and then the seams of the filter sheet can be welded by the mobile welding device 5.

[0039] The other parts of this embodiment are the same as those of Embodiment 1, and thus will not be described in detail.

[0040] Embodiment 3:

[0041] This embodiment is further optimized on the basis of the above embodiment 1 or 2. Figure 2As shown, the bottom filter screen pushing device 41 includes a vertical pushing cylinder 411 and a bottom pushing block 412. The vertical pushing cylinder 411 is arranged at the bottom of the valve sleeve positioning groove 01, and the push rod end of the vertical pushing cylinder 411 is provided with a bottom pushing block 412. A limiting groove is provided at the top center of the bottom pushing block 412 corresponding to the outer contour of the valve sleeve, and bottom pushing protrusions are provided on the two side walls of the limiting groove at the position corresponding to the filter screen positioning groove 02.

[0042] The limiting groove set at the top center of the bottom push block 412 is used to avoid the installation space of the valve sleeve. At the same time, the limiting groove is used to prevent the valve sleeve from shaking left and right during the process of winding the filter mesh, thereby ensuring the stability of the valve sleeve to a certain extent. At the same time, a flexible pad is set on the push surface of the bottom push protrusion to avoid rigid contact with the filter mesh and avoid damage to the filter mesh.

[0043] like Fig. 9 As shown, the bottom push block 412 moves upward under the drive of the vertical push cylinder 411, and then passes through the filter mesh positioning groove 02 upward through the bottom push protrusions arranged on both sides of the limit groove, and then pushes the two ends of the filter mesh upward, thereby moving the filter mesh from Figure 8 Push the flat state shown to Fig. 9 The U-shaped state shown enables the filter sheet to wrap and fit the bottom of the valve sleeve.

[0044] The other parts of this embodiment are the same as those of the above-mentioned embodiment 1 or 2, and thus will not be described in detail.

[0045] Embodiment 4:

[0046] This embodiment is further optimized based on any one of the above embodiments 1-3. Figure 2 As shown, the side filter plate pushing device 42 includes a linear pushing cylinder 421 and a side pushing block 422. The linear pushing cylinder 421 is arranged on both sides of the valve sleeve positioning groove 01 in a direction perpendicular to the valve sleeve axis. The push rod end of the linear pushing cylinder 421 is provided with a side pushing block 422. A side pushing protrusion is provided on one side of the side pushing block 422 at a position corresponding to the filter plate positioning groove 02.

[0047] like Fig.10 As shown, the linear pushing cylinders 421 located on both sides of the valve sleeve positioning groove 01 extend toward each other, thereby driving the side pushing blocks 422 on both sides to move closer to each other, and then the side pushing blocks 422 on both sides push the two sides of the U-shaped filter screen respectively, so that the filter screen is wrapped around the circumference and fits the outer side of the valve sleeve.

[0048] Furthermore, in order to enable the filter mesh to fit the outer side surface of the valve sleeve, an extrusion arc surface matching the outer side surface contour of the valve sleeve is provided on the pushing surface of the side pushing block 422, and a flexible pad is provided on the extrusion arc surface so that the extrusion arc surface is in flexible contact with the filter mesh to avoid damage to the filter mesh.

[0049] The other parts of this embodiment are the same as any one of the above embodiments 1-3, so they are not repeated here.

[0050] Embodiment 5:

[0051] This embodiment is further optimized based on any one of the above embodiments 1-4. Figure 1 and Figure 2 As shown, an axial tightening device 6 is provided at one end of the valve sleeve positioning groove 01 along the axial direction. The pushing device 6 includes a pushing cylinder and a pushing head. The pushing cylinder is arranged parallel to the valve sleeve positioning groove 01. When the valve sleeve is placed inside the valve sleeve positioning groove 01, one end face of the valve sleeve contacts one end face of the valve sleeve positioning groove 01. Then, the pushing cylinder at the other end drives the pushing head to tighten the valve sleeve, thereby fixing the valve sleeve to avoid movement of the valve sleeve during the filter screen winding operation.

[0052] The other parts of this embodiment are the same as any one of the above embodiments 1-4, so they are not repeated here.

[0053] Embodiment 6:

[0054] This embodiment is further optimized based on any one of the above embodiments 1-5. Figure 3 As shown, the step-by-step valve sleeve transplanting device 3 includes a step-by-step translation device 31, an approach translation device 32, a lifting device 33, and a valve sleeve pneumatic clamp 34. The step-by-step translation device 31 moves parallel to the axial direction of the valve sleeve, and the translation portion of the step-by-step translation device 31 is provided with an approach translation device 32 that moves perpendicular to the axial direction of the valve sleeve, and the translation portion of the approach translation device 32 is provided with a lifting device 33 that moves in a vertical direction, and the lifting portion of the lifting device 33 is provided with a valve sleeve pneumatic clamp 34 corresponding to the valve sleeve positioning groove 01.

[0055] The step-by-step translation of the step-by-step translation device 31 realizes the step-by-step movement between different workstations, and the movement of the approach translation device 32 and the lifting and lowering of the lifting device 33 are coordinated to drive the valve sleeve pneumatic clamp 34 to approach the valve sleeve positioning groove 01. The step-by-step translation device 31 is a screw translation assembly, and a transfer seat is provided on the translation part of the screw translation assembly. The approach translation device 32 includes a plurality of slide rails linearly arranged on the transfer seat, a slider slidably arranged on the slide rail, a linear push cylinder connected to the slider and driving the slider to slide, and a lifting device 33 is provided on the other side of the slider. The lifting device 33 includes a lifting cylinder and a transfer seat connected to the push rod of the lifting cylinder, and the valve sleeve pneumatic clamp 34 is provided on the transfer seat.

[0056] The other parts of this embodiment are the same as any one of the above embodiments 1-5, so they are not repeated here.

[0057] Embodiment 7:

[0058] This embodiment is further optimized based on any one of the above embodiments 1-6. Figure 4 As shown, the filter sheet picking device 2 includes a filter sheet translation device 21, a filter sheet lifting device 22, and a filter sheet adsorption device 23. The filter sheet translation device 21 moves linearly perpendicular to the axial direction of the valve sleeve corresponding to the valve sleeve positioning groove 01, the filter sheet translation device 21 is provided with a filter sheet lifting device 22 on the translation part, and the filter sheet adsorption device 23 is provided on the lifting part of the filter sheet lifting device 22.

[0059] The translation of the filter sheet translation device 21 and the lifting and lowering of the filter sheet lifting device 22 cooperate to drive the filter sheet adsorption device 23 to approach the filter sheet and move the filter sheet to the filter sheet positioning slot 02 for placement after adsorbing the filter sheet. The filter sheet translation device 21 includes a screw linear translation device, and a filter sheet lifting device 22 is arranged on the translation part of the screw linear translation device. The filter sheet lifting device 22 includes a lifting cylinder and a transfer seat connected to the end of the push rod of the lifting cylinder. The filter sheet adsorption device 23 is arranged on the transfer seat. The filter sheet adsorption device 23 is a plurality of pneumatic suction cups arranged on the transfer seat.

[0060] The other parts of this embodiment are the same as any of the above embodiments 1-6, so they are not repeated here.

[0061] Embodiment 8:

[0062] This embodiment is further optimized on the basis of any one of the above embodiments 1-7. A visual inspection device is provided on one side of the unloading end of the welding platform 1 corresponding to the valve sleeve positioning groove 01. The visual inspection device includes a visual inspection camera. The image of the filter mesh on the outside of the valve sleeve is captured by the visual inspection camera, and then it is judged whether the filter mesh is installed in place based on the captured image.

[0063] The other parts of this embodiment are the same as any one of the above embodiments 1-7, so they are not repeated here.

[0064] Embodiment 9:

[0065] This embodiment is further optimized on the basis of any one of the above embodiments 1-8. Figure 6 As shown, the feeding end of the welding platform 1 is provided with a valve sleeve picking device 7 for picking up the valve sleeve and placing the valve sleeve inside the valve sleeve positioning groove 01.

[0066] Furthermore, the valve sleeve picking device 7 comprises a three-axis moving device, a rotating device 74 is arranged on the moving part of the three-axis moving device, and a valve sleeve clamp 75 is arranged on the rotating end of the rotating device 74 .

[0067] The three-axis moving device includes an X-direction translation device 71 that moves in parallel to the valve sleeve positioning groove 01, a Y-direction translation device 72 that moves perpendicular to the valve sleeve positioning groove 01, and a Z-direction lifting device that moves in the vertical direction. The three-axis moving device moves in three directions to drive the valve sleeve fixture 75 to pick up the valve sleeve in the loading area, and at the same time, the optional device 74 drives the valve sleeve fixture 75 to rotate, thereby changing the direction of the valve sleeve.

[0068] The other parts of this embodiment are the same as any one of the above embodiments 1-8, so they are not repeated here.

[0069] Embodiment 10:

[0070] This embodiment is further optimized based on any one of the above embodiments 1-9. Figure 5 As shown, the mobile welding device 5 includes a first translation device 51, a second translation device 52, a welding lifting device 53, and a welding device 54. The first translation device 51 moves parallel to the direction of the filter plate positioning groove 02, and the second translation device 52 is arranged on the translation part of the first translation device 51. The second translation device 52 moves parallel to the direction of the valve sleeve positioning groove 01, and the welding lifting device 53 is arranged on the translation part of the second translation device 52. The welding lifting device 54 is arranged on the lifting part of the welding lifting device 53.

[0071] The first translation device 51 moves linearly perpendicular to the direction of the valve sleeve positioning groove 01, the second translation device 52 moves linearly parallel to the direction of the valve sleeve positioning groove 01, and the welding lifting device 53 is lifted and lowered in the vertical direction, thereby driving the welding device 54 to approach the top of the valve sleeve, and then the welding device 54 is used to weld the seam of the filter mesh on the outside of the valve sleeve.

[0072] The other parts of this embodiment are the same as any of the above embodiments 1-9, so they are not repeated here.

[0073] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. An automatic assembly and welding device for a filter screen in a valve sleeve, comprising a welding platform (1) having a plurality of stations arranged in sequence, characterized in that: The welding platform (1) is provided with a valve sleeve positioning groove (01) and a plurality of filter mesh positioning grooves (02) arranged perpendicularly and crosswise to the valve sleeve positioning groove (01) at a central position of the workstation; a filter mesh picking device (2) is provided on one side of the welding platform (1) corresponding to the filter mesh positioning groove (02), and the filter mesh is placed inside the filter mesh positioning groove (02) by means of the filter mesh picking device (2); a step-type valve sleeve moving device (3) is provided on the other side of the welding platform (1) corresponding to the valve sleeve positioning groove (01); A filter sheet attaching and assembling device (4) for pushing the filter sheet to fit the filter sheet on the outside of the valve sleeve is provided on the connecting platform (1) corresponding to each valve sleeve positioning groove (01) and the filter sheet positioning groove (02); a movable welding device (5) is provided on the top of the valve sleeve positioning groove (01); the filter sheet attaching and assembling device (4) comprises a bottom filter sheet pushing device (41) and a side filter sheet pushing device (42); the bottom filter sheet pushing device (41) is provided at the top of the valve sleeve positioning groove (01) corresponding to the position of the filter sheet positioning groove (02); The pushing end of the bottom filter sheet pushing device (41) passes through the valve sleeve positioning groove (01) upwardly and is retracted to push the filter sheet upwardly so that the filter sheet is attached to the bottom of the valve sleeve; the side filter sheet pushing device (42) is symmetrically arranged on both sides of the valve sleeve positioning groove (01) corresponding to the position of the filter sheet positioning groove (02), and the pushing end of the side filter sheet pushing device (42) is perpendicular to the valve sleeve positioning groove (01) and is retracted to attach the filter sheet as a whole to the outer surface of the valve sleeve; the bottom filter sheet pushing device (41) includes a vertical pushing device A cylinder (411) and a bottom push block (412), wherein the vertical push cylinder (411) is arranged at the bottom of the valve sleeve positioning groove (01), the push rod end of the vertical push cylinder (411) is provided with a bottom push block (412), a limit groove is provided at the top center of the bottom push block (412) corresponding to the outer contour of the valve sleeve, and bottom push protrusions are provided on the two side walls of the limit groove at positions corresponding to the filter plate positioning groove (02); an axial tightening device (6) is provided at one axial end of the valve sleeve positioning groove (01).

2. The automatic assembly and welding device for the filter screen inside the valve sleeve according to claim 1 is characterized in that: The side filter plate pushing device (42) comprises a linear pushing cylinder (421) and a side pushing block (422); the linear pushing cylinder (421) is arranged on both sides of the valve sleeve positioning groove (01) in a direction perpendicular to the valve sleeve axis; the end of the push rod of the linear pushing cylinder (421) is provided with a side pushing block (422); and a side pushing protrusion is provided on one side of the side pushing block (422) at a position corresponding to the filter plate positioning groove (02).

3. An automatic assembly and welding device for a filter screen in a valve sleeve according to claim 1 or 2, characterized in that: The step-by-step valve sleeve transplanting device (3) comprises a step-by-step translation device (31), an approach translation device (32), a lifting device (33), and a valve sleeve pneumatic clamp (34); the step-by-step translation device (31) moves parallel to the axial direction of the valve sleeve; the translation portion of the step-by-step translation device (31) is provided with an approach translation device (32) that moves perpendicular to the axial direction of the valve sleeve; the translation portion of the approach translation device (32) is provided with a lifting device (33) that moves in a vertical direction; and the lifting portion of the lifting device (33) is provided with a valve sleeve pneumatic clamp (34) corresponding to the valve sleeve positioning groove (01).

4. The automatic assembly and welding device for the filter screen in the valve sleeve of a valve according to claim 1 or 2, characterized in that: The filter sheet picking device (2) comprises a filter sheet translation device (21), a filter sheet lifting device (22), and a filter sheet adsorption device (23); the filter sheet translation device (21) moves linearly perpendicular to the axial direction of the valve sleeve and corresponding to the valve sleeve positioning groove (01); the translation portion of the filter sheet translation device (21) is provided with a filter sheet lifting device (22); and the lifting portion of the filter sheet lifting device (22) is provided with a filter sheet adsorption device (23).

5. The automatic assembly and welding device for the filter screen in the valve sleeve of a valve according to claim 1 or 2, characterized in that: The mobile welding device (5) comprises a first translation device (51), a second translation device (52), a welding lifting device (53), and a welding device (54); the first translation device (51) moves in a direction parallel to the filter screen positioning groove (02); the second translation device (52) is arranged on the translation part of the first translation device (51); the second translation device (52) moves in a direction parallel to the valve sleeve positioning groove (01); the welding lifting device (53) is arranged on the translation part of the second translation device (52); and the welding device (54) is arranged on the lifting part of the welding lifting device (53).

6. The automatic assembly and welding device for the filter screen in the valve sleeve of a valve according to claim 1 or 2, characterized in that: The loading end of the welding platform (1) is provided with a valve sleeve picking device (7) for picking up the valve sleeve and placing the valve sleeve inside the valve sleeve positioning groove (01).

7. The automatic assembly and welding device for the filter screen in the valve sleeve of a valve according to claim 6, characterized in that: The valve sleeve picking device (7) comprises a three-axis moving device, a rotating device (74) is provided on the moving part of the three-axis moving device, and a valve sleeve clamp (75) is provided on the rotating end of the rotating device (74).

Images