A fire damper automatic assembly production process

Abstract

The present invention relates to the technical field of fire damper assembly, and specifically to an automatic assembly production process for fire dampers, which mainly comprises an automatic assembly platform for fire damper production, and the assembly of circular fire dampers is completed by working together through a workbench, a feeding device, a fixing device and a welding device. The present invention can solve the current problem that when assembling fire dampers, the valve body is first fixed manually, and then the valve core is placed manually in the valve body, and finally the two are assembled into a whole manually using existing welding equipment. The process of manual fixing, assembly and welding is cumbersome; and the existing assembly equipment generally only welds a part of the valve core when assembling and welding the valve body and the valve core, and the welding part is not firm, which causes the valve core to fall off.

Description

Technical Field

[0001] The invention relates to the technical field of fire damper assembly, in particular to an automatic assembly production process for fire dampers. Background Art

[0002] In order to prevent the fire and toxic high-temperature smoke from spreading through the air duct during a fire, fire dampers must be installed on the air ducts of the ventilation and air-conditioning systems. The fire damper is a temperature-controlled memory molten alloy that uses gravity and a spring mechanism to close the valve. New products also use memory alloys to deform to close the valve. Its function is: when the smoke temperature reaches a certain value and people have basically been evacuated, smoke exhaust is meaningless, and the smoke is already carrying fire at this time, the valve automatically closes to prevent the fire from spreading.

[0003] At present, when assembling a circular fire damper, the valve body is usually first fixed manually, and then the valve core is manually placed in the valve body, and finally the two are manually assembled into a whole using existing welding equipment. The process of manual fixing, assembly and welding is cumbersome; and the existing assembly equipment generally only welds a part of the valve core when assembling and welding the valve body and the valve core, and the welding part is not firm, which can easily cause the valve core to fall off. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an automatic assembly production process for fire dampers, which mainly comprises an automatic assembly platform for fire dampers. The automatic assembly platform for fire dampers comprises a workbench, a loading device, a fixing device and a welding device. A loading device is installed on one side of the upper end of the workbench, a fixing device is installed in the middle of the upper end of the workbench, and a welding device is installed on the side of the upper end of the workbench away from the loading device.

[0005] The feeding device includes a feeding barrel installed on the left side of the upper end of the workbench, a No. 1 gear is arranged on the front side of the feeding barrel, the No. 1 gear is installed on the left side of the upper end of the workbench by means of rotation, a mounting frame is installed on the upper end of the No. 1 gear, a feeding cylinder is installed on the upper end of the mounting frame, a rotating motor is installed on the left side of the upper end of the workbench, a No. 2 gear is installed on the output end of the rotating motor, the No. 2 gear is meshed with the No. 1 gear, a feeding head is installed on the protruding end of the feeding cylinder, and a limiting frame is installed on the left end of the feeding head by means of threaded cooperation.

[0006] The welding device includes an electric push rod installed on the right side of the upper end of the workbench, a clamping head is installed at the output end of the electric push rod, a double-axis motor is installed in the middle of the upper end of the clamping head, and a No. 3 gear is installed at the output end of the double-axis motor. A guide rod is installed on the left side of the clamping head, and a threaded rod is arranged on the right side of the guide rod. The middle part of the threaded rod is installed in the middle part of the clamping head by rotation, and the end part of the threaded rod is installed in the end part of the guide rod by rotation. Two No. 4 gears are symmetrically installed in the middle part of the threaded rod, and the No. 4 gear is meshed with the No. 3 gear. A laser welding head is symmetrically installed on the outer side of the threaded rod by threaded matching, and the middle part of the laser welding head is slidably sleeved on the outer side of the guide rod.

[0007] Preferably, the fixing device includes a support frame installed in the middle of the upper end of the workbench, a limit rod is symmetrically installed on the upper side of the front end of the support frame by sliding, a limit spring is arranged between the limit rod and the support frame, an L-shaped frame is installed in the middle of the upper end of the workbench, a lifting cylinder is installed at the lower end of the horizontal section of the L-shaped frame, a clamping plate is installed at the protruding end of the lifting cylinder, a guide column is symmetrically installed front and back at the upper end of the clamping plate, a guide plate is installed on the upper side of the guide column by sliding, and the guide plate is installed at the lower end of the shell of the lifting cylinder.

[0008] Preferably, the loading barrel includes a push plate slidably mounted on the upper end of the loading barrel, a side of the push plate away from the mounting frame is connected to the loading barrel via a loading spring, and a clamping plate is symmetrically arranged at the upper and lower front ends of the loading barrel.

[0009] Preferably, a suction cup is installed at the right end of the loading head, an extrusion rod is installed on the right side of the loading head in a sliding manner, and the left end of the extrusion rod is connected to the loading head through a compression spring.

[0010] Preferably, a baffle is provided at the working end of the limiting frame, and a soft rubber layer is provided at the right end of the baffle.

[0011] Preferably, opposite threads are symmetrically arranged on the outer side of the threaded rod.

[0012] Preferably, the clamping head and the laser welding head are both provided with an arc-shaped notch in the middle, and the laser welding head is the prior art.

[0013] Preferably, the opposing surfaces of the support frame and the pressing plate are both arc-shaped structures, and steel balls are evenly arranged in the arc-shaped structure, and a guide through hole is opened on the upper side of the front end of the support frame.

[0014] Preferably, the working end of the limit rod is provided with two sliding grooves, a mounting rod is installed in the sliding groove, a limit block is sleeved on the outside of the mounting rod, the ends of the limit blocks away from each other are connected by a clamping spring, and the clamping spring is sleeved on the outside of the mounting rod.

[0015] Preferably, a magnet is provided at the outer end of the extrusion rod.

[0016] The automatic assembly production process of the fire damper specifically includes the following steps: S1. Equipment inspection: Inspect the automatic assembly platform for the production of fire dampers before use.

[0017] S2. Loading: Manually squeeze the push plate toward the rear side along the loading barrel so that the push plate squeezes the loading spring backward, thereby facilitating manual placement of multiple valve cores in the upper barrel at one time, and limiting it through the arc-shaped structure provided at the outer end of the clamping plate. After the valve core is placed, manually pull the limit rod outward to facilitate manual placement of the valve body on the upper end of the support frame. After the valve body is placed, manually release the limit rod so that the limit spring drives the limit rod to reset, and at the same time squeeze the limit block through the valve body so that the limit block squeezes the clamping spring away from each other along the installation rod, so that the end edge of the valve body is stuck between the limit blocks, and the open structure at the end of the limit block The structure facilitates the end edge of the valve body to enter between the limit blocks, thereby facilitating the limit blocks to limit the valve body and preventing the valve body from separating from the limit rod, so that the limit rod limits the center of the valve body at the upper end of the support frame. After the limit rod limits the center of the valve body at the upper end of the support frame, the valve body is manually rotated so that the through hole opened in the middle of the valve body is directly in front, and the axis of the through hole on the valve body coincides with the axis of the guide through hole. After the axis of the through hole coincides with the axis of the guide through hole, the clamping plate and the guide column are driven to descend vertically along the guide plate through the extended end of the lifting cylinder, so that the clamping plate descends and fits the upper end of the valve body, so that the clamping plate and the support frame fix the valve body between the two.

[0018] S3. Assembly: After the valve core and valve body are placed, the valve core fixing rod is manually inserted into the valve body from the front end of the guide through hole. After the valve core fixing rod is inserted into the valve body, the feeding cylinder drives the feeding head close to the front end of the feeding barrel, so that the suction cup is attached to the front end face of the valve core located at the frontmost side of the feeding barrel, and the feeding cylinder drives the suction cup to continue to approach the valve core through the feeding head, so that the extrusion rod squeezes the compression spring and moves inward along the feeding head, so that the suction cup sucks and fixes the valve core after being squeezed, and the magnet provided at the outer end of the extrusion rod facilitates the fixing of the valve core. After the valve core is fixed, the feeding cylinder drives the valve core to move outward along the feeding barrel through the feeding head and the suction cup, so that the edge of the valve core squeezes the arc-shaped structure provided at the outer end of the clamping plate, so that the clamping plate opens, so that After the valve core is separated from the loading barrel and the valve core is clamped and fixed, the clamping plate is reset, so that the arc-shaped structure provided at the outer end of the clamping plate limits the valve core in the loading barrel to prevent the remaining valve core from falling from the loading barrel. After the suction cup removes the valve core from the loading barrel, the rotating motor drives the mounting frame to rotate 90 degrees through the No. 2 gear and the No. 1 gear, so that the mounting frame drives the fixed valve core to rotate 90 degrees through the loading cylinder and the loading head. At the same time, the loading cylinder drives the valve core into the valve body through the loading head and the suction cup. When the valve core is placed in the valve body, the baffle plate provided at the working end of the limit frame is clamped on the edge of the valve body end, so that the limit frame puts the valve core into the valve body through the baffle plate, so that the valve core fits the outside of the valve core fixing rod.

[0019] S4. Welding: After the valve core and the valve core fixing rod are fitted together, the electric push rod drives the clamping head to approach and clamp the valve core fixing rod. After the clamping head clamps the valve core fixing rod, the dual-axis motor drives the No. 3 gear to rotate, so that the No. 3 gear drives the No. 4 gear to rotate, and then the No. 4 gear drives the threaded rod to rotate, so that the threaded rod with opposite threads symmetrically arranged on the outside drives the laser welding head to move along the guide rod at the same time, so that the laser welding head can perform all the welding on the connection between the valve core and the valve core fixing rod.

[0020] S5. Unloading: After welding is completed, the electric push rod drives the clamping head and the laser welding head away from the valve body, and the extended end of the lifting cylinder drives the clamping plate and the guide column to rise vertically along the guide plate, so that the clamping plate rises and detaches from the upper end of the valve body, thereby releasing the clamping plate and the support frame from fixing the valve body, making it convenient to manually remove the assembled fire damper from the support frame.

[0021] Compared with the prior art, the present invention has the following advantages: 1. The present invention uses a fixing device to quickly lock and fix the valve body, and uses a loading device to continuously load and assemble the valve core, thereby avoiding the tedious process of manual fixing and assembly, and improving production efficiency. In addition, a welding device is provided to completely weld the connecting parts between the valve core and the valve core fixing rod, thereby ensuring that the connecting parts are firm and avoiding the valve core from detaching.

[0022] 2. The present invention fixes the valve core by sucking it with a suction cup after being squeezed, and a magnet is provided at the outer end of the squeezing rod to facilitate the fixing of the valve core. At the same time, the rotating motor is provided to drive the second gear and the first gear to rotate, so that the mounting frame drives the fixed valve core to rotate 90 degrees through the feeding cylinder and the feeding head, which facilitates the feeding head to continuously and automatically feed and assemble the valve body through the suction cup, thereby improving production efficiency.

[0023] 3. The present invention drives the third gear to rotate through the dual-axis motor, so that the third gear drives the threaded rod to rotate through the fourth gear, so that the threaded rod symmetrically provided with opposite threads on the outside drives the laser welding head to move along the guide rod at the same time, which facilitates the laser welding head to weld the connection between the valve core and the valve core fixing rod, ensuring that the valve core is firmly welded and avoiding the separation of the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the present invention when it is working.

[0026] Figure 2 It is a top view of the present invention when it is working.

[0027] Figure 3 The present invention Figure 2 AA section view.

[0028] Figure 4 The present invention Figure 2 BB section view.

[0029] Figure 5 It is a partial cross-sectional view between the loading barrel and the clamping plate of the present invention.

[0030] Figure 6 It is a three-dimensional structural schematic diagram of the welding device of the present invention.

[0031] Figure 7 It is a cross-sectional view between the support frame, the limiting rod and the limiting spring of the present invention.

[0032] Figure 8 It is a sectional view of the three-dimensional structure between the feeding head and the limiting frame of the present invention.

[0033] Fig. 9 The present invention Figure 3 A local enlarged schematic diagram of point X.

[0034] In the figure: 1, workbench; 2, feeding device; 3, fixing device; 4, welding device; 21, feeding cylinder; 22, gear No. 1; 23, mounting frame; 24, feeding cylinder; 25, rotating motor; 26, gear No. 2; 27, feeding head; 28, limit frame; 210, push plate; 211, feeding spring; 212, clamping plate; 270, suction cup; 271, extrusion rod; 272, compression spring; 31, Support frame; 32. Limit rod; 33. Limit spring; 34. L-shaped frame; 35. Lifting cylinder; 36. Clamping plate; 37. Guide column; 38. Guide plate; 320. Mounting rod; 321. Limit block; 322. Clamping spring; 41. Electric push rod; 42. Clamping head; 43. Dual-axis motor; 44. Gear No. 3; 45. Guide rod; 46. Threaded rod; 47. Gear No. 4; 48. Laser welding head. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the following Figures 1 to 9 , the present invention is further explained.

[0036] See also Figure 1 and Figure 3A fire damper automatic assembly production process mainly comprises an automatic assembly platform for fire damper production, which includes a workbench 1, a feeding device 2, a fixing device 3 and a welding device 4. The feeding device 2 is installed on one side of the upper end of the workbench 1, the fixing device 3 is installed in the middle of the upper end of the workbench 1, and the welding device 4 is installed on the side of the upper end of the workbench 1 away from the feeding device 2.

[0037] See also Figure 1 , Figure 5 , Figure 8 and Fig. 9 The feeding device 2 includes a feeding barrel 21 installed on the left side of the upper end of the workbench 1, a No. 1 gear 22 is arranged on the front side of the feeding barrel 21, and the No. 1 gear 22 is installed on the left side of the upper end of the workbench 1 by rotation, a mounting frame 23 is installed on the upper end of the No. 1 gear 22, and a feeding cylinder 24 is installed on the upper end of the mounting frame 23, a rotating motor 25 is installed on the left side of the upper end of the workbench 1, and a No. 2 gear 26 is installed on the output end of the rotating motor 25, and the No. 2 gear 26 is meshed with the No. 1 gear 22, and a feeding head 27 is installed on the protruding end of the feeding cylinder 24, and a limiting frame 28 is installed on the left end of the feeding head 27 by threaded matching; the feeding barrel 21 includes a pushing plate 210 installed on the upper end of the feeding barrel 21 by sliding, The side of the pushing plate 210 away from the mounting frame 23 is connected to the loading barrel 21 through a loading spring 211, and a clamping plate 212 is symmetrically arranged at the upper and lower front ends of the loading barrel 21, and the clamping plate 212 is mounted on the loading barrel 21 through a hinge, and the inner side of the outer end of the clamping plate 212 is an arc-shaped structure, and the distance between the arc-shaped structures at the outer ends of the clamping plate 212 is smaller than the inner diameter of the loading barrel 21; a suction cup 270 is installed at the right end of the loading head 27, and an extrusion rod 271 is installed on the right side of the loading head 27 in a sliding manner, and the left end of the extrusion rod 271 is connected to the loading head 27 through a compression spring 272; a magnet is arranged at the outer end of the extrusion rod 271; baffles are arranged at the working ends of the limit frame 28, and a soft rubber layer is arranged at the right end of the baffle.

[0038] By manually squeezing the push plate 210 toward the rear side along the loading barrel 21, the push plate 210 squeezes the loading spring 211 and moves backward, thereby facilitating manual placement of multiple valve cores in the loading barrel 21 at one time. After the valve cores are placed, the position of the limit frame 28 on the loading head 27 is manually adjusted so that the limit frame 28 limits the position of the loading head 27 to avoid damage to the valve core or valve body when the loading cylinder 24 drives the loading head 27 to move too far. After the position adjustment of the limit frame 28 is completed, the loading cylinder 24 drives the loading head 2 7 is close to the front end of the loading barrel 21, so that the suction cup 270 is attached to the front end surface of the valve core located at the frontmost side of the loading barrel 21, and the loading cylinder 24 drives the suction cup 270 to continue to approach the valve core through the loading head 27, so that the extrusion rod 271 squeezes the compression spring 272 and moves inward along the loading head 27, so that the suction cup 270 sucks the valve core tightly and fixes it after being squeezed, and the magnet provided at the outer end of the extrusion rod 271 facilitates the fixing of the valve core. After the valve core is fixed, the loading cylinder 24 drives the valve core to move outward along the loading barrel 21 through the loading head 27 and the suction cup 270, so that the valve core The edge squeezes the arc-shaped structure at the outer end of the clamping plate 212, so that the clamping plate 212 opens, allowing the valve core to separate from the loading barrel 21. After the clamped and fixed valve core separates from the loading barrel 21, the clamping plate 212 is reset, so that the arc-shaped structure at the outer end of the clamping plate 212 limits the valve core in the loading barrel 21 to prevent the remaining valve core from falling from the loading barrel 21. After the suction cup 270 removes the valve core from the loading barrel 21, the rotating motor 25 drives the second gear 26 to rotate, so that the second gear 26 is meshed with the first gear 22. Drive the mounting frame 23 to rotate 90 degrees, so that the mounting frame 23 drives the fixed valve core to rotate 90 degrees through the loading cylinder 24 and the loading head 27, and at the same time fixes the valve body through the fixing device 3. After the valve body is fixed, the loading cylinder 24 drives the valve core into the valve body through the loading head 27 and the suction cup 270. When the valve core is placed in the valve body, the baffle plate provided at the working end of the limit frame 28 is clamped on the edge of the valve body end, so that the limit frame 28 limits the position of the valve core in the valve body through the baffle plate, and a soft rubber layer is provided on the right end of the baffle plate to avoid damage to the valve body.

[0039] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7The fixing device 3 includes a support frame 31 installed in the middle of the upper end of the workbench 1, a limit rod 32 is symmetrically installed on the upper side of the front end of the support frame 31 by sliding, and a limit spring 33 is arranged between the limit rod 32 and the support frame 31, an L-shaped frame 34 is installed in the middle of the upper end of the workbench 1, a lifting cylinder 35 is installed at the lower end of the horizontal section of the L-shaped frame 34, a pressing plate 36 is installed at the protruding end of the lifting cylinder 35, and a guide column 37 is symmetrically installed on the upper end of the pressing plate 36, and a guide plate 38 is installed on the upper side of the guide column 37 by sliding. Installed at the lower end of the shell of the lifting cylinder 35; the opposing surfaces of the support frame 31 and the clamping plate 36 are both arc-shaped structures, and steel balls are evenly arranged in the arc-shaped structure. A guide through hole is opened on the upper side of the front end of the support frame 31, and two sliding grooves are opened at the working end of the limit rod 32, in which a mounting rod 320 is installed, and a limiting block 321 is sleeved on the outer side of the mounting rod 320. The end of the limit block 321 close to the support frame 31 is an open structure, and the end away from the limit block 321 is connected by a clamping spring 322, and the clamping spring 322 is sleeved on the outer side of the mounting rod 320.

[0040] After the suction cup 270 sucks and fixes the valve core, the limiting rod 32 is manually pulled outward to facilitate manual placement of the valve body on the upper end of the support frame 31. After the valve body is placed, the limiting rod 32 is manually loosened so that the limiting spring 33 drives the limiting rod 32 to reset. At the same time, the limiting block 321 is squeezed by the valve body so that the limiting block 321 squeezes the clamping spring 322 away from each other along the mounting rod 320, so that the edge of the valve body end is stuck between the limiting blocks 321, and the open structure at the end of the limiting block 321 facilitates the edge of the valve body end to enter between the limiting blocks 321, so that the limiting block 321 is convenient for limiting the valve body to prevent the valve body from separating from the limiting rod 32, so that the limiting rod 32 limits the valve body in the middle of the upper end of the support frame 31. After the limiting rod 32 limits the valve body in the middle of the upper end of the support frame 31, By manually rotating the valve body, the through hole opened in the middle of the valve body is located in the front, and the through hole on the valve body is made to coincide with the axis of the guide through hole. After the axis of the through hole coincides with the axis of the guide through hole, the clamping plate 36 and the guide column 37 are driven to vertically descend along the guide plate 38 by the extended end of the lifting cylinder 35, so that the clamping plate 36 descends and fits against the upper end of the valve body, so that the clamping plate 36 and the support frame 31 fix the valve body therebetween. After the valve body is fixed, the valve core fixing rod is manually inserted into the valve body from the front end of the guide through hole. After the valve core fixing rod is inserted into the valve body, the loading cylinder 24 drives the valve core into the valve body through the loading head 27 and the suction cup 270, and makes the valve core fit against the outside of the valve core fixing rod. After the valve core and the valve core fixing rod fit, the two are welded into a whole by the welding device 4.

[0041] See also Figure 1 , Figure 3 and Figure 6The welding device 4 includes an electric push rod 41 installed on the right side of the upper end of the workbench 1, a clamping head 42 is installed at the output end of the electric push rod 41, a double-axis motor 43 is installed at the middle of the upper end of the clamping head 42, and a No. 3 gear 44 is installed at the output end of the double-axis motor 43. A guide rod 45 is installed on the left side of the clamping head 42, and a threaded rod 46 is arranged on the right side of the guide rod 45. The middle part of the threaded rod 46 is installed in the middle of the clamping head 42 by rotation, and the end of the threaded rod 46 is installed at the end of the guide rod 45 by rotation. Two No. 4 gears 47 are symmetrically installed in the middle of the threaded rod 46, and the No. 4 gear 47 is meshed with the No. 3 gear 44. A laser welding head 48 is symmetrically installed on the outer side of the threaded rod 46 by threaded matching, and the middle part of the laser welding head 48 is slidably sleeved on the outer side of the guide rod 45; the outer side of the threaded rod 46 is symmetrically provided with opposite threads; the middle part of the left end of the clamping head 42 and the laser welding head 48 is provided with an arc notch, and the laser welding head 48 is the prior art.

[0042] After the valve core and the valve core fixing rod are fitted together, the electric push rod 41 drives the clamping head 42 to approach and clamp the valve core fixing rod. After the clamping head 42 clamps the valve core fixing rod, the dual-axis motor 43 drives the third gear 44 to rotate, so that the third gear 44 drives the fourth gear 47 to rotate, so that the fourth gear 47 drives the threaded rod 46 to rotate, so that the threaded rod 46 symmetrically provided with opposite threads on the outside drives the laser welding head 48 to move along the guide rod 45 at the same time, so that the laser welding head 48 can weld all the connections between the valve core and the valve core fixing rod, ensure that the valve core is welded firmly, and avoid the two from being separated. The arc-shaped notch in the middle of the left end of the clamping head 42 is convenient for the clamping head 42 to clamp The valve core and the valve core fixing rod are tightly fixed. The arc-shaped notch in the middle of the left end of the laser welding head 48 is convenient for the valve core fixing rod to be in the notch, so that the laser welding head 48 can weld the valve core and the valve core fixing rod into a whole through the gap between the two. After the welding of the valve core and the valve core fixing rod is completed, the clamping head 42 and the laser welding head 48 are driven away from the valve body by the electric push rod 41, and the clamping plate 36 and the guide column 37 are driven to rise vertically along the guide plate 38 by the extended end of the lifting cylinder 35, so that the clamping plate 36 rises and disengages from the upper end of the valve body, thereby releasing the clamping plate 36 and the support frame 31 from fixing the valve body, making it convenient for manual removal of the assembled fire damper from the support frame 31.

[0043] The automatic assembly production process of the fire damper specifically includes the following steps: S1. Equipment inspection: Inspect the automatic assembly platform for the production of fire dampers before use.

[0044] S2. Loading: Manually squeeze the push plate 210 toward the rear side along the loading barrel 21, so that the push plate 210 squeezes the loading spring 211 and moves backward, thereby facilitating manual placement of multiple valve cores in the upper barrel 21 at one time, and limiting it through the arc-shaped structure provided on the outer end of the clamping plate 212. After the valve core is placed, manually pull the limiting rod 32 outward to facilitate manual placement of the valve body on the upper end of the support frame 31. After the valve body is placed, manually loosen the limiting rod 32 so that the limiting spring 33 drives the limiting rod 32 to reset, and at the same time, squeeze the limiting block 321 through the valve body, so that the limiting block 321 squeezes the clamping spring 322 away from each other along the mounting rod 320, so that the end edge of the valve body is stuck between the limiting blocks 321, and the limiting block 321 The open structure at the end facilitates the end edge of the valve body to enter between the limit blocks 321, thereby facilitating the limit blocks 321 to limit the valve body and prevent the valve body from separating from the limit rod 32, so that the limit rod 32 limits the valve body in the center at the upper end of the support frame 31. After the limit rod 32 limits the valve body in the center at the upper end of the support frame 31, the valve body is manually rotated so that the through hole opened in the middle of the valve body is directly in front, and the through hole on the valve body coincides with the axis of the guide through hole. After the axis of the through hole coincides with the axis of the guide through hole, the clamping plate 36 and the guide column 37 are driven to descend vertically along the guide plate 38 through the extended end of the lifting cylinder 35, so that the clamping plate 36 descends and fits the upper end of the valve body, so that the clamping plate 36 and the support frame 31 fix the valve body between them.

[0045] S3. Assembly: After the valve core and the valve body are placed, the valve core fixing rod is manually inserted into the valve body from the front end of the guide through hole. After the valve core fixing rod is inserted into the valve body, the loading cylinder 24 drives the loading head 27 to approach the front end of the loading barrel 21, so that the suction cup 270 is attached to the front end surface of the valve core located at the frontmost side of the loading barrel 21, and the loading cylinder 24 drives the suction cup 270 to continue to approach the valve core through the loading head 27, so that the extrusion rod 271 squeezes the compression spring 272 and moves inward along the loading head 27, so that the suction cup 270 is squeezed to suck and fix the valve core, and the magnet provided at the outer end of the extrusion rod 271 facilitates the fixing of the valve core. After the valve core is fixed, the loading cylinder 24 drives the valve core to move outward along the loading barrel 21 through the loading head 27 and the suction cup 270, so that the edge of the valve core squeezes the arc-shaped structure provided at the outer end of the clamping plate 212, so that the clamping plate 212 opens. The valve core is separated from the loading barrel 21. After the valve core is separated from the loading barrel 21 by the clamping plate 212, the clamping plate 212 is reset, so that the arc-shaped structure provided at the outer end of the clamping plate 212 limits the valve core in the loading barrel 21 to prevent the remaining valve core from falling out of the loading barrel 21. After the suction cup 270 removes the valve core from the loading barrel 21, the rotating motor 25 drives the mounting frame 23 to rotate 90 degrees through the second gear 26 and the first gear 22, so that the mounting frame 23 drives the fixed valve core to rotate 90 degrees through the loading cylinder 24 and the loading head 27. At the same time, the loading cylinder 24 drives the valve core into the valve body through the loading head 27 and the suction cup 270. When the valve core is placed in the valve body, the baffle plate provided at the working end of the limiting frame 28 is clamped on the edge of the valve body end, so that the limiting frame 28 puts the valve core into the valve body through the baffle plate, so that the valve core fits the outside of the valve core fixing rod.

[0046] S4. Welding: After the valve core and the valve core fixing rod are fitted together, the electric push rod 41 drives the clamping head 42 to approach and clamp the valve core fixing rod. After the clamping head 42 clamps the valve core fixing rod, the dual-axis motor 43 drives the third gear 44 to rotate, so that the third gear 44 drives the fourth gear 47 to rotate, and the fourth gear 47 drives the threaded rod 46 to rotate, so that the threaded rod 46 with opposite threads symmetrically arranged on the outside drives the laser welding head 48 to move along the guide rod 45 at the same time, so that the laser welding head 48 can weld all the connections between the valve core and the valve core fixing rod.

[0047] S5. Unloading: After welding is completed, the electric push rod 41 drives the clamping head 42 and the laser welding head 48 away from the valve body, and the extended end of the lifting cylinder 35 drives the clamping plate 36 and the guide column 37 to rise vertically along the guide plate 38, so that the clamping plate 36 rises and detaches from the upper end of the valve body, thereby releasing the clamping plate 36 and the support frame 31 from fixing the valve body, making it convenient to manually remove the assembled fire damper from the support frame 31.

[0048] The basic principles, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and the description in the specification are only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automated assembly platform for the production of fire dampers, comprising a workbench (1), a loading device (2), a fixing device (3) and a welding device (4), characterized in that: A loading device (2) is installed on one side of the upper end of the workbench (1), a fixing device (3) is installed in the middle of the upper end of the workbench (1), and a welding device (4) is installed on the side of the upper end of the workbench (1) away from the loading device (2); wherein: The feeding device (2) comprises a feeding cylinder (21) mounted on the left side of the upper end of the workbench (1), a first gear (22) is arranged on the front side of the feeding cylinder (21), the first gear (22) is mounted on the left side of the upper end of the workbench (1) by means of rotation, a mounting frame (23) is mounted on the upper end of the first gear (22), a feeding cylinder (24) is mounted on the upper end of the mounting frame (23), a rotating motor (25) is mounted on the left side of the upper end of the workbench (1), a second gear (26) is mounted on the output end of the rotating motor (25), the second gear (26) is meshed with the first gear (22), a feeding head (27) is mounted on the protruding end of the feeding cylinder (24), a limiting frame (28) is mounted on the left end of the feeding head (27) by means of threaded engagement, a baffle is arranged at the working end of the limiting frame (28), and a soft rubber layer is arranged at the right end of the baffle; A suction cup (270) is installed at the right end of the loading head (27), and an extrusion rod (271) is installed on the right side of the loading head (27) in a sliding manner, and the left end of the extrusion rod (271) is connected to the loading head (27) through a compression spring (272); The welding device (4) comprises an electric push rod (41) installed on the right side of the upper end of the workbench (1), a clamping head (42) is installed at the output end of the electric push rod (41), a double-axis motor (43) is installed at the middle of the upper end of the clamping head (42), and a third gear (44) is installed at the output end of the double-axis motor (43), a guide rod (45) is installed on the left side of the clamping head (42), and a threaded rod (46) is arranged on the right side of the guide rod (45), the middle part of the threaded rod (46) is installed on the middle part of the clamping head (42) by rotation, and the end of the threaded rod (46) is installed on the end of the guide rod (45) by rotation, two fourth gears (47) are symmetrically installed in the middle part of the threaded rod (46), the fourth gear (47) is meshed with the third gear (44), and a laser welding head (48) is symmetrically installed on the outer side of the threaded rod (46) by threaded matching, and the middle part of the laser welding head (48) is sleeved on the outer side of the guide rod (45) by sliding; The fixing device (3) comprises a support frame (31) mounted at the middle of the upper end of the workbench (1); a limit rod (32) is symmetrically mounted on the upper side of the front end of the support frame (31) in a sliding manner; a limit spring (33) is arranged between the limit rod (32) and the support frame (31); an L-shaped frame (34) is mounted at the middle of the upper end of the workbench (1); a lifting cylinder (35) is mounted at the lower end of the horizontal section of the L-shaped frame (34); a pressing plate (36) is mounted at the protruding end of the lifting cylinder (35); a guide column (37) is symmetrically mounted on the upper end of the pressing plate (36); a guide plate (38) is mounted on the upper side of the guide column (37) in a sliding manner; and the guide plate (38) is mounted at the lower end of the shell of the lifting cylinder (35); The working end of the limit rod (32) is provided with two sliding grooves, in which a mounting rod (320) is installed, and a limit block (321) is sleeved on the outside of the mounting rod (320), and the end of the limit block (321) close to the support frame (31) is an open structure, and the end of the limit block (321) away from the support frame (31) is connected by a clamping spring (322), and the clamping spring (322) is sleeved on the outside of the mounting rod (320).

2. The fire damper production automated assembly platform according to claim 1, characterized in that: The loading barrel (21) comprises a pushing plate (210) mounted on the upper end of the loading barrel (21) in a sliding manner, and a side of the pushing plate (210) away from the mounting frame (23) is connected to the loading barrel (21) via a loading spring (211), and a clamping plate (212) is symmetrically arranged at the front end of the loading barrel (21) in the upper and lower directions, and the clamping plate (212) is mounted on the loading barrel (21) via a hinge, and the inner side of the outer end of the clamping plate (212) is an arc-shaped structure, and the distance between the arc-shaped structures at the outer ends of the clamping plate (212) is smaller than the inner diameter of the loading barrel (21).

3. The fire damper production automated assembly platform according to claim 1, characterized in that: The outer side of the threaded rod (46) is symmetrically provided with opposite threads.

4. The fire damper production automated assembly platform according to claim 1, characterized in that: The pressing head (42) and the laser welding head (48) are both provided with an arc-shaped notch in the middle.

5. The fire damper production automated assembly platform according to claim 1, characterized in that: The opposing surfaces of the support frame (31) and the pressing plate (36) are both arc-shaped structures, and steel balls are evenly arranged in the arc-shaped structures. A guide through hole is provided on the upper side of the front end of the support frame (31).

6. The fire damper production automated assembly platform according to claim 1, characterized in that: The outer end of the extrusion rod (271) is provided with a magnet.

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