Ash discharging ball valve assembling equipment

Abstract

The invention relates to the technical field of ball valve manufacturing, in particular to dust discharging ball valve assembling equipment which comprises a rack and an assembling mechanism, the assembling mechanism is fixedly arranged at the top of the rack, and the assembling mechanism comprises a dust discharging ball valve body clamping part, a dust discharging ball valve element pre-tightening part and a dust discharging ball valve element twisting part. Wherein the ash ball valve body clamping part is used for clamping and fixing an ash ball valve body. Valve body clamping, valve element pre-tightening and valve element twisting of the ash discharging ball valve are integrated on the same rack station, a multi-station transfer mechanism does not need to be arranged, the overall occupied area of equipment is greatly reduced, the hardware input cost is reduced, meanwhile, the logistics turnover time between stations is saved through the integrated operation process, the production takt is effectively improved, and the production efficiency is improved. And the device is particularly suitable for large-scale ash discharging ball valve production scenes.

Description

Technical Field

[0001] This invention relates to the field of ball valve manufacturing technology, specifically to an assembly equipment for an ash discharge ball valve. Background Technology

[0002] As a key control component in powder material conveying systems, the assembly precision of the valve body and valve core of the ash discharge ball valve directly determines the valve's sealing performance and service life. This is especially critical in industrial conditions with high dust and high pressure differentials, where the pre-tightening accuracy and final torque consistency of the valve core are paramount. Currently, in automated assembly technology for ash discharge ball valves, the assembly of the valve body and valve core generally adopts a segmented layout with two independent stations: "pre-tightening" and "tightening." A typical process is as follows: the first station completes valve body positioning, valve core loading, and initial pre-tightening, creating an initial fit between the valve core and the valve body mounting hole; after being transferred by a conveyor mechanism to the second independent station, a dedicated torque tightening mechanism completes the final torque tightening. This segmented design stems from the disassembly approach of traditional assembly processes, but in actual production, it has revealed several core problems: First, the dispersed workstations result in a lengthy production line layout, requiring independent feeding, positioning, conveying, and control systems. This significantly increases equipment footprint and hardware investment costs, and the additional logistics turnaround time introduced by the multiple workstation connections noticeably reduces the overall production cycle time. Second, during the transfer of the valve body between two workstations, slight displacement can occur due to factors such as positioning reference conversion and conveying vibration. This leads to a misalignment of the coaxiality between the pre-tightened valve core and the twisting mechanism, affecting torque control accuracy and causing problems such as over-tightening damaging the valve core sealing surface or under-tightening leading to sealing failure. For some small- to medium-batch production scenarios, existing technologies also employ manual assistance or single-station reciprocating switching operations to try to simplify the layout. However, manual intervention cannot guarantee the consistency of pre-tightening and twisting, and reciprocating switching requires frequent start-ups and shutdowns of the equipment, resulting in low efficiency. Neither of these methods can meet the demands of large-scale, high-precision production. In view of this, we propose an ash discharge ball valve assembly equipment to solve the above-mentioned technical problems. Summary of the Invention

[0003] This invention provides the following technical solution: an ash discharge ball valve assembly device, comprising: frame; An assembly mechanism is fixedly installed on the top of the frame. The assembly mechanism includes a valve body clamping part for unloading ball valves, a valve core pre-tightening part for unloading ball valves, and a valve core twisting part for unloading ball valves. The valve body clamping part is used to clamp and fix the valve body for unloading ball valves. The valve core pre-tightening part is used to install the valve core for unloading ball valves onto the valve body for unloading ball valves and pre-tighten it. The valve core twisting part is used to tighten the pre-tightened valve core for unloading ball valves to a preset torque value.

[0004] As a preferred embodiment of the present invention, the valve body clamping part of the ash discharge ball valve includes: Two valve body clamping cylinders are symmetrically installed on the top of the frame along the width and length of the frame, and the piston rod output ends of the two valve body clamping cylinders are arranged opposite each other; A clamping seat is fixedly installed on the output end of the piston rod of two valve body clamping cylinders. The end of the clamping seat is provided with a valve body positioning groove for positioning the valve body of the ash discharge ball valve. The valve body support platform is fixedly installed on the top of the frame and located between the two valve body clamping cylinders, with its position corresponding to the valve body positioning groove.

[0005] As a preferred embodiment of the present invention, the pre-tightening part of the ash discharge ball valve core includes: Two support plates are symmetrically installed on the top of the frame along the length of the frame and located on one side of the two valve body clamping cylinders; The pre-tightened translation slide plate is slidably installed on top of the two support uprights along the width of the frame; The pre-tensioning lifting plate is slidably mounted on the top of the pre-tensioning sliding plate along the height direction of the clamping seat; The valve core pre-tightening motor is fixedly installed on the top of the pre-tightening lifting plate; A pneumatic finger is fixedly installed on the top of the valve core pre-tightening motor, and the output shaft of the pneumatic finger is fixedly connected to the input shaft of the valve core pre-tightening motor. Two valve core clamps are symmetrically installed on the two fingers of the pneumatic finger; Valve core positioning slots are symmetrically opened on the opposite surfaces of the two valve core clamping blocks.

[0006] As a preferred embodiment of the present invention, the pre-tightening part of the ash discharge ball valve core further includes: The lifting guide rod is fixedly installed on the top of the pre-tensioned translation slide plate along the width direction of the pre-tensioned translation slide plate, and the pre-tensioned lifting plate is slidably installed on the periphery of the two lifting guide rods through linear bearings; The transmission frame is fixedly installed on the top of the pre-tightened translation slide plate; The pre-tensioning lifting cylinder is fixedly installed on the top of the pre-tensioning lifting plate, and its piston rod passes through the inside of the pre-tensioning lifting plate and is fixedly connected to the top of the transmission frame through a floating joint.

[0007] As a preferred embodiment of the present invention, the valve core twisting part of the ash discharge ball valve includes: The torque drive shaft is rotatably mounted inside the pre-tensioned translation slide plate and passes through the top and bottom of the pre-tensioned translation slide plate; The valve core tightening head is fixedly installed at the bottom of the torque transmission shaft; The torque trigger dial is fixedly installed on the upper part of the outer wall of the torque drive shaft.

[0008] As a preferred embodiment of the present invention, the valve core twisting part of the ash discharge ball valve further includes: A tension spring connecting seat is fixedly installed at one end of the bottom of the torque trigger dial; The fixed support is fixedly installed on the top of the pre-tightened sliding plate; A trigger spring is fixedly installed between the spring connecting seat and the fixed support seat. In the initial state, the trigger spring is in a slightly stretched state. A dial limit block is fixedly installed on the top of the pre-tightening sliding plate, and the outer wall of the dial limit block abuts against the side wall of the torque trigger dial, which is used to prevent the valve core clamp block from releasing its rebound force in the initial state.

[0009] As a preferred embodiment of the present invention, the valve core twisting part of the ash discharge ball valve further includes: The twisting trigger cylinder is fixedly installed on the top of the frame by a bracket and is located at the end of the pre-tightening translation slide away from the valve core clamping block; The trigger push block is fixedly installed on the output end of the piston rod of the torque trigger cylinder; An elastic abutment head is fixedly installed on the trigger push block, and the telescopic end of the elastic abutment head abuts against the side of the torque trigger dial. The stop post is fixedly installed on the top of the pre-tightening sliding plate, and in the initial state, the stop post abuts against the side of the trigger push block away from the torque trigger dial. The stop plate is fixedly installed on the opposite side of the two support plates, away from the end of the twisting trigger cylinder, and is used to limit the sliding stroke of the pre-tightening sliding plate.

[0010] As a preferred embodiment of the present invention, a material discharge through hole is vertically opened at the bottom of the frame, and the material discharge through hole is located at one end of the valve body support platform near the tension spring connecting seat and near the twisting trigger cylinder.

[0011] As a preferred embodiment of the present invention, the valve core tightening head is fixed to the bottom of the torque transmission shaft by bolts, which is suitable for replacing the valve core tightening head.

[0012] As a preferred embodiment of the present invention, the top of the valve body support platform is provided with a straight groove along its length, and the cross-section of the straight groove is arc-shaped, and the inner wall of the arc shape matches the specifications of the outer wall of the valve body of the assembled ash discharge ball valve. The valve body support platform is fixed to the frame by bolts, which is suitable for replacing the valve body support platform.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, the valve body clamping, valve core pre-tightening, and valve core twisting of the ash discharge ball valve are integrated into the same frame station, eliminating the need for a multi-station transfer mechanism. This significantly reduces the overall footprint of the equipment and lowers hardware investment costs. At the same time, the integrated operation process eliminates the logistics turnaround time between stations, effectively improving the production cycle, and is especially suitable for large-scale ash discharge ball valve production scenarios.

[0014] 2. In this invention, relying on the reference positioning of the same work station, the valve body always maintains a stable assembly reference after being clamped and fixed. The coaxiality deviation between the pre-tightened valve core and the subsequent twisting mechanism is controlled within a very small range, avoiding the positioning offset problem caused by transportation, ensuring the torque control accuracy, effectively reducing the situation of over-tightening damaging the valve core sealing surface or under-tightening causing sealing failure, and improving the consistency of product assembly quality.

[0015] 3. In this invention, the valve core pre-tightening part and the twisting part share the same set of support plates and pre-tightening translation slide plates, realizing the reuse of the mechanism. After the valve core pre-tightening operation is completed, it is only necessary to switch to the twisting operation position by sliding the pre-tightening translation slide plate. There is no need to frequently start and stop the equipment, nor is there any need for manual reference calibration. It takes into account both the flexibility and high precision requirements of small and medium batch production.

[0016] 4. In this invention, a replaceable valve core tightening head and valve body support platform are provided. When different specifications of ash discharge ball valves need to be assembled, it is only necessary to unscrew the bolts to replace the valve core tightening head with the appropriate specification, and replace the valve body support platform with the corresponding arc-shaped straight groove size. There is no need to adjust the overall structure of the equipment, which improves the versatility of the equipment and adapts to the assembly needs of multiple specifications of ash discharge ball valves.

[0017] 5. In this invention, the torque trigger dial is locked in the initial state by the cooperation of the trigger spring and the dial limit block, which prevents the valve core tightening head from turning erroneously. During the torque triggering operation, the torque triggering cylinder pushes the elastic contact head to abut against the torque trigger dial, causing it to break away from the limit block. Under the tension of the trigger spring, the torque triggering is completed. Compared with pure electric triggering, this mechanical triggering method has a more direct response, reduces the operation error caused by electric control failure, and improves the reliability of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the assembly mechanism in the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the assembly mechanism in the present invention. Figure 2 ; Figure 4 This is a schematic diagram of the assembly mechanism in the present invention. Figure 3 ; Figure 5 This is a schematic diagram of the structure of the clamping part of the ash discharge ball valve body in this invention; Figure 6 This is a schematic diagram of the pre-tightening part of the ash discharge ball valve core in this invention. Figure 1 ; Figure 7 This is a schematic diagram of the pre-tightening part of the ash discharge ball valve core in this invention. Figure 2 ; Figure 8 This is a schematic diagram of the twisting part of the ash discharge ball valve core in this invention. Figure 1 ; Figure 9 This is a schematic diagram of the twisting part of the ash discharge ball valve core in this invention. Figure 2 .

[0019] In the diagram: 100, frame; 101, unloading through hole; 200, assembly mechanism; 2010, valve body clamping cylinder; 2011, clamping seat; 2012, valve body positioning groove; 2013, valve body support platform; 2110, support plate; 2111, pre-tightening sliding plate; 2112, pre-tightening lifting plate; 2113, valve core pre-tightening motor; 2114, pneumatic finger; 2115, valve core clamping block; 2116, valve core positioning slot; 2117, lifting... 2118. Guide rod; 2119. Transmission frame; 2210. Pre-tension lifting cylinder; 2211. Torque transmission shaft; 2212. Valve core tightening head; 2213. Torque trigger dial; 2214. Tension spring connecting seat; 2215. Fixed support seat; 2216. Trigger tension spring; 2217. Dial limit block; 2218. Twist trigger cylinder; 2219. Trigger push block; 2220. Elastic abutment head; 2221. Stop column; 2222. Stop plate. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1-9 The technical solution provided by the present invention specifically includes the following embodiments: An ash discharge ball valve assembly device includes a frame 100 and an assembly mechanism 200. The assembly mechanism 200 is fixedly disposed on the top of the frame 100. The assembly mechanism 200 includes an ash discharge ball valve body clamping part, an ash discharge ball valve core pre-tightening part, and an ash discharge ball valve core twisting part. The ash discharge ball valve body clamping part is used to clamp and fix the ash discharge ball valve body. The ash discharge ball valve core pre-tightening part is used to install the ash discharge ball valve core on the ash discharge ball valve body and pre-tighten it. The ash discharge ball valve core twisting part is used to tighten the pre-tightened ash discharge ball valve core to a preset torque value.

[0022] For further details, please refer to [link / reference]. Figure 5 As shown: The ash discharge ball valve body clamping part includes two valve body clamping cylinders 2010, a clamping seat 2011, a valve body positioning groove 2012, and a valve body support platform 2013. The two valve body clamping cylinders 2010 are symmetrically installed on the top of the frame 100 along the width and length direction, and the piston rod output ends of the two valve body clamping cylinders 2010 are arranged opposite each other. The clamping seat 2011 is fixedly installed on the piston rod output ends of the two valve body clamping cylinders 2010, and the end of the clamping seat 2011 is provided for positioning the ash discharge ball. The valve body positioning groove 2012 and the valve body support platform 2013 are fixedly installed on the top of the frame 100 and located between the two valve body clamping cylinders 2010, and their positions correspond to the valve body positioning groove 2012. The top of the valve body support platform 2013 has a straight groove along its length, and the cross-section of the straight groove is arc-shaped. The arc-shaped inner wall matches the specifications of the outer wall of the valve body of the assembled ash discharge ball valve. The valve body support platform 2013 is fixed to the frame 100 by bolts, which is suitable for replacement of the valve body support platform 2013.

[0023] Specifically, the vibratory feeder for feeding the ash discharge ball valve core is located above the vibratory feeder for feeding the ash discharge ball valve body. The vibratory feeder transports the ash discharge ball valve body into the straight groove on the valve body support platform 2013 and then stops. Immediately afterwards, the piston rods of the two valve body clamping cylinders 2010 extend synchronously, causing the two clamping seats 2011 to move towards each other until the ash discharge ball valve body is clamped and positioned by the two valve body positioning grooves 2012. At this point, the mounting ends of the ash discharge ball valve body and the ash discharge ball valve core face upwards, as shown in the attached diagram. Figure 5 As shown, the positioning and clamping of the ash discharge ball valve body is completed to ensure the stability of the ash discharge ball valve body during assembly, so as to facilitate the precise docking of the ash discharge ball valve body and the ash discharge ball valve core.

[0024] For further details, please refer to [link / reference]. Figure 6 , Figure 7 , Figure 8 As shown: The pre-tightening part of the ash discharge ball valve core includes two support plates 2110, a pre-tightening sliding plate 2111, a pre-tightening lifting plate 2112, a valve core pre-tightening motor 2113, a pneumatic finger 2114, two valve core clamping blocks 2115, a valve core positioning slot 2116, a lifting guide rod 2117, a transmission frame 2118, and a pre-tightening lifting cylinder 2119. The two support plates 2110 are symmetrically installed on the top of the frame 100 along its length and are located on one side of the two valve body clamping cylinders 2010. The pre-tightening sliding plate 2111 is slidably installed on the top of the two support plates 2110 along the width of the frame 100. The pre-tightening lifting plate 2112 is slidably positioned on the top of the pre-tightening sliding plate 2111 along the height of the clamping seat 2011. The valve core pre-tightening motor 2113 is fixedly installed on the top of the pre-tightening lifting plate 2112. The pneumatic finger 2114... 14 is fixedly installed on the top of the valve core pre-tightening motor 2113, and the output shaft of the pneumatic finger 2114 is fixedly connected to the input shaft of the valve core pre-tightening motor 2113. Two valve core clamping blocks 2115 are symmetrically installed on the two fingers of the pneumatic finger 2114. Valve core positioning slots 2116 are symmetrically opened on the opposite surfaces of the two valve core clamping blocks 2115. The lifting guide rod 2117 is fixedly installed on the top of the clamping seat 2011 along the width direction of the pre-tightening translation slide plate 2111. The pre-tightening lifting plate 2112 is slidably installed on the periphery of the two lifting guide rods 2117 through linear bearings. The transmission frame 2118 is fixedly installed on the top of the pre-tightening translation slide plate 2111. The pre-tightening lifting cylinder 2119 is fixedly installed on the top of the pre-tightening lifting plate 2112, and its piston rod passes through the interior of the pre-tightening lifting plate 2112 and is fixedly connected to the top of the transmission frame 2118 through a floating joint.

[0025] Specifically, the piston rod of the torque trigger cylinder 2217 pushes the trigger push block 2218 to move closer to the torque trigger dial 2212. Because the telescopic end of the elastic contact head 2219 contacts the side of the torque trigger dial 2212, and simultaneously, due to the connection between the tension spring connecting seat 2213, the fixed support seat 2214, and the trigger tension spring 2215, the elastic contact head 2219 pushes the torque trigger dial 2212 and the pre-tensioning mounting bracket pre-tensioning translation slide plate 2111 to move along the width direction of the frame 100 towards the valve body clamping area. Once the device moves to the preset position, the piston rod of the pre-tightening lifting cylinder 2119 extends, pushing the pre-tightening lifting plate 2112 to slide downwards along the lifting guide rod 2117. This causes the pneumatic grippers and pneumatic fingers 2114, along with the two valve core clamping blocks 2115, to move to the discharge end of the vibratory feeder for the ash discharge ball valve core. Subsequently, the two grippers of the pneumatic fingers 2114 drive the two valve core clamping blocks 2115 to perform a clamping action. The valve core positioning slots 2116 on the valve core clamping blocks 2115 precisely position and clamp the hexagonal nut on the valve core. Next, the output rod of the pre-tightening lifting cylinder 2119 extends, driving the pre-tightening lifting plate 2112 to rise and reset. During this process, the two valve core clamps 2115 clamp the valve core of the ash discharge ball valve at the unloading end of the vibratory feeder and move it upward. Then, the piston rod of the torque trigger cylinder 2217 retracts, driving the torque trigger dial 2212 and the pre-tightening translation slide plate 2111 to move away from the valve body clamping area along the width direction of the frame 100 until the valve core moves to directly above the valve body. Subsequently, the piston rod of the pre-tightening lifting cylinder 2119 extends again, pushing the pre-tightening lifting plate 2112 to reset. The lifting plate 2112 slides downward along the lifting guide rod 2117, precisely inserting the valve core into the mounting hole of the valve body. Then, the valve core pre-tightening motor 2113 starts, driving the pneumatic finger 2114 and the two valve core clamping blocks 2115 to rotate, initially pre-tightening the valve core in the valve body. After pre-tightening is completed, the valve core pre-tightening motor 2113 stops rotating, the piston rod of the pre-tightening lifting cylinder 2119 retracts, driving the pre-tightening lifting plate 2112 to rise and reset. The two grippers of the pneumatic finger 2114 drive the two valve core clamping blocks 2115 to release the valve core.

[0026] For further details, please refer to [link / reference]. Figure 8 , Figure 9 As shown: The ash discharge ball valve core tightening section includes a torque drive shaft 2210, a valve core tightening head 2211, a torque trigger dial 2212, a tension spring connecting seat 2213, a fixed support seat 2214, a trigger tension spring 2215, a dial limit block 2216, a tightening trigger cylinder 2217, a trigger push block 2218, an elastic contact head 2219, a stop post 2220, and a stop plate 2221. The torque drive shaft 2210 is rotatably mounted inside the pre-tightening translation slide plate 2111 and passes through the top and bottom of the pre-tightening translation slide plate 2111. The valve core tightening head 221... 1. Fixedly installed at the bottom of torque drive shaft 2210, valve core tightening head 2211 is fixed to the bottom of torque drive shaft 2210 by bolts, suitable for replacement of valve core tightening head 2211. Torque trigger dial 2212 is fixedly installed on the upper part of the outer wall of torque drive shaft 2210. Tension spring connecting seat 2213 is fixedly installed at one bottom end of torque trigger dial 2212. Fixed support seat 2214 is fixedly installed on the top of pre-tensioned translation slide plate 2111. Trigger tension spring 2215 is fixedly installed between tension spring connecting seat 2213 and fixed support seat 2214, initial state. In the initial state, the trigger spring 2215 is in a slightly stretched state, the dial limit block 2216 is fixedly installed on the top of the pre-tightening translation slide plate 2111, and the outer wall of the dial limit block 2216 abuts against the side wall of the torque trigger dial 2212, which is used to prevent the valve core clamp 2115 from releasing its rebound force in the initial state. The torque trigger cylinder 2217 is fixedly installed on the top of the frame 100 by a bracket and is located at the end of the pre-tightening translation slide plate 2111 away from the valve core clamp 2115. The trigger push block 2218 is fixedly installed on the piston rod output end of the torque trigger cylinder 2217. The elastic abutment head 2219 is fixedly installed on the trigger push block 2218, and the telescopic end of the elastic abutment head 2219 abuts against the side of the torque trigger dial 2212. The stop post 2220 is fixedly installed on the top of the pre-tightening translation slide plate 2111. In the initial state, the stop post 2220 abuts against the side of the trigger push block 2218 away from the torque trigger dial 2212. The stop plate 2221 is fixedly installed on the back side of the two support plates 2110 away from the end of the torque trigger cylinder 2217, and is used to limit the sliding stroke of the pre-tightening translation slide plate 2111.

[0027] Specifically, after the valve core is pre-tightened, the piston rod of the torque trigger cylinder 2217 extends again, repeating the above process. The pre-tightening part of the ash discharge ball valve core continues the above steps to pick up material from the unloading section of the ash discharge ball valve core vibrating feeder. When the end of the pre-tightening translation slide plate 2111 abuts against the sides of the two stop plates 2221, the pre-tightening translation slide plate 2111 stops its translation. At this time, the valve core tightening head 2211 is just stuck on the outer periphery of the pre-tightened hexagonal cap of the ash discharge ball valve core. Then, the piston rod of the torque trigger cylinder 2217 continues to extend, pushing the trigger push block 2218 to move towards the torque trigger dial 2212. The telescopic end of the elastic contact head 2219 and the torque trigger dial 2212 are then engaged. The side of the torque trigger dial 2212 contacts and continues to apply force. At this time, the torque trigger dial 2212 overcomes the elastic resistance of the trigger spring 2215 and begins to rotate, driving the torque transmission shaft 2210 and the valve core tightening head 2211 to rotate synchronously, further tightening the pre-tightened valve core. It should be noted that the elasticity of the elastic contact head 2219 can be adjusted. The specific adjustment method is the existing technology. When the valve core is tightened to the predetermined torque, even if the trigger push block 2218 continues to move, the extension end of the elastic contact head 2219 will be compressed, and the torque trigger dial 2212 will not continue to rotate, avoiding over-tightening that could damage the valve core or valve body. After the valve core is tightened to the preset torque value, the piston rods of the two valve body clamping cylinders 2010 retract synchronously, causing the two clamping seats 2011 to move in opposite directions, releasing the clamping of the ash discharge ball valve body. The piston rod of the twisting trigger cylinder 2217 retracts. Simultaneously, the ash discharge ball valve body vibrating feeder continues to feed material onto the valve body support platform 2013, pushing the previously assembled ash discharge ball valve along the top straight groove of the valve body support platform 2013 towards the discharge through hole 101. Finally, the assembled ash discharge ball valve discharges through the discharge through hole 101. During this process, because the valve core tightening head 2211 rotates at a certain angle to tighten the valve core, the valve… The opening angle of the core tightening head 2211 deviates from the angle of the valve core hexagonal cap, making it impossible to disengage directly. At this time, the rebound force of the trigger spring 2215 cannot drive the torque trigger dial 2212 to rotate in the opposite direction. However, after the ash discharge ball valve is assembled and discharged through the discharge hole 101, it separates from the valve core tightening head 2211. The torque trigger dial 2212 will then rotate in the opposite direction under the rebound force of the trigger spring 2215, driving the torque transmission shaft 2210 and the valve core tightening head 2211 to reset synchronously until the side wall of the torque trigger dial 2212 contacts the outer wall of the dial limit block 2216 again, preparing for the next valve core tightening operation.

[0028] In this scheme, a ball valve assembly device for ash discharge is operated as follows: First, two vibrating feeders are installed at the feeding end of the device. One feeder is used to feed the ash discharge ball valve body, and the other feeder is used to feed the ash discharge ball valve core. The vibrating feeder for feeding the ash discharge ball valve core is located above the vibrating feeder for feeding the ash discharge ball valve body. The vibrating feeder for feeding the ash discharge ball valve body transports the ash discharge ball valve body into the straight groove on the valve body support platform 2013 and then stops. Immediately afterwards, the piston rods of the two valve body clamping cylinders 2010 extend synchronously, driving the two clamping seats 2011 to move towards each other until the ash discharge ball valve body is clamped and positioned by the two valve body positioning grooves 2012. At this time, the mounting ends of the ash discharge ball valve body and the ash discharge ball valve core face upwards, as shown in the attached diagram. Figure 5 As shown, the valve body is positioned and clamped. During this process, the piston rod of the torque trigger cylinder 2217 pushes the trigger push block 2218 to move closer to the torque trigger dial 2212. Because the telescopic end of the elastic contact head 2219 contacts the side of the torque trigger dial 2212, and simultaneously, due to the connection between the tension spring connecting seat 2213, the fixed support seat 2214, and the trigger tension spring 2215, the elastic contact head 2219 pushes the torque trigger dial 2212 and the pre-tensioning mounting bracket pre-tensioning translation slide plate 2111 to move along the width direction of the frame 100 towards the valve body clamping area. When the cylinder moves to the preset position, the piston rod of the pre-tightening lifting cylinder 2119 extends, pushing the pre-tightening lifting plate 2112 to slide downward along the lifting guide rod 2117. This causes the pneumatic grippers and pneumatic fingers 2114 and the two valve core clamping blocks 2115 to move to the discharge end of the vibratory feeder for the ash discharge ball valve core. Immediately, the two grippers of the pneumatic fingers 2114 drive the two valve core clamping blocks 2115 to perform a clamping action. The valve core positioning slot 2116 on the valve core clamping block 2115 accurately positions and clamps the hexagonal nut on the valve core. Next, the output rod of the pre-tightening lifting cylinder 2119 extends, driving the pre-tightening lifting plate 2112 to rise and reset. During this process, the two valve core clamps 2115 clamp the valve core of the ash discharge ball valve at the unloading end of the vibratory feeder and move it upward. Then, the piston rod of the torque trigger cylinder 2217 retracts, driving the torque trigger dial 2212 and the pre-tightening translation slide plate 2111 to move away from the valve body clamping area along the width direction of the frame 100 until the valve core moves to directly above the valve body. Subsequently, the piston rod of the pre-tightening lifting cylinder 2119 extends again, pushing... The pre-tightening lifting plate 2112 slides downward along the lifting guide rod 2117, accurately inserting the valve core into the mounting hole of the valve body. Then, the valve core pre-tightening motor 2113 starts, driving the pneumatic finger 2114 and the two valve core clamping blocks 2115 to rotate, pre-tightening the valve core in the valve body. After pre-tightening is completed, the valve core pre-tightening motor 2113 stops rotating, the piston rod of the pre-tightening lifting cylinder 2119 retracts, driving the pre-tightening lifting plate 2112 to rise and reset, and the two grippers of the pneumatic finger 2114 drive the two valve core clamping blocks 2115 to release the valve core. Immediately afterwards, the piston rod of the torque trigger cylinder 2217 extends again, repeating the above process. The pre-tightening part of the ash discharge ball valve core continues to move to the unloading section of the vibrating feeder to pick up material. When the end of the pre-tightening sliding plate 2111 abuts against the sides of the two stop plates 2221, the pre-tightening sliding plate 2111 stops its translation. At this time, the valve core tightening head 2211 is just stuck around the hexagonal cap of the pre-tightened ash discharge ball valve core. Then, the piston rod of the torque trigger cylinder 2217 continues to extend, pushing the trigger push block 2218 to move closer to the torque trigger dial 2212. The telescopic end of the elastic contact head 2219 contacts the torque trigger. The side of the dial 2212 contacts and continues to apply force. At this time, the torque trigger dial 2212 overcomes the elastic resistance of the trigger spring 2215 and begins to rotate, driving the torque transmission shaft 2210 and the valve core tightening head 2211 to rotate synchronously, further tightening the pre-tightened valve core. It should be noted that the elasticity of the elastic contact head 2219 can be adjusted. The specific adjustment method is the existing technology. When the valve core is tightened to the predetermined torque, even if the trigger push block 2218 continues to move, the extension end of the elastic contact head 2219 will be compressed, and the torque trigger dial 2212 will not continue to rotate, avoiding over-tightening that could damage the valve core or valve body. After the valve core is tightened to the preset torque value, the piston rods of the two valve body clamping cylinders 2010 retract synchronously, causing the two clamping seats 2011 to move in opposite directions, releasing the clamping of the ash discharge ball valve body. The piston rod of the twisting trigger cylinder 2217 retracts. Simultaneously, the ash discharge ball valve body vibrating feeder continues to feed material onto the valve body support platform 2013, pushing the previously assembled ash discharge ball valve along the top straight groove of the valve body support platform 2013 towards the discharge through hole 101. Finally, the assembled ash discharge ball valve discharges through the discharge through hole 101. During this process, because the valve core tightening head 2211 rotates at a certain angle to tighten the valve core, the valve… The opening angle of the core tightening head 2211 deviates from the angle of the valve core hexagonal cap, making it impossible to disengage directly. At this time, the rebound force of the trigger spring 2215 cannot drive the torque trigger dial 2212 to rotate in the opposite direction. However, after the ash discharge ball valve is assembled and discharged through the discharge hole 101, it separates from the valve core tightening head 2211. The torque trigger dial 2212 will then rotate in the opposite direction under the rebound force of the trigger spring 2215, driving the torque transmission shaft 2210 and the valve core tightening head 2211 to reset synchronously until the side wall of the torque trigger dial 2212 contacts the outer wall of the dial limit block 2216 again, preparing for the next valve core tightening operation.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. An assembly device for an ash discharge ball valve, characterized in that: include: Rack (100); Assembly mechanism (200) is fixedly installed on the top of frame (100). Assembly mechanism (200) includes ash discharge ball valve body clamping part, ash discharge ball valve core pre-tightening part and ash discharge ball valve core twisting part. The ash discharge ball valve body clamping part is used to clamp and fix the ash discharge ball valve body. The ash discharge ball valve core pre-tightening part is used to install the ash discharge ball valve core on the ash discharge ball valve body and pre-tighten it. The ash discharge ball valve core twisting part is used to tighten the pre-tightened ash discharge ball valve core to a preset torque value.

2. The ash discharge ball valve assembly equipment according to claim 1, characterized in that: The valve body clamping part of the ash discharge ball valve includes: Two valve body clamping cylinders (2010) are symmetrically installed on the top of the frame (100) along the width and length direction of the frame (100), and the piston rod output ends of the two valve body clamping cylinders (2010) are arranged opposite each other; The clamping seat (2011) is fixedly installed on the piston rod output end of the two valve body clamping cylinders (2010). The end of the clamping seat (2011) is provided with a valve body positioning groove (2012) for positioning the ash discharge ball valve body. The valve body support platform (2013) is fixedly installed on the top of the frame (100) and located between the two valve body clamping cylinders (2010), and its position corresponds to the valve body positioning groove (2012).

3. The ash discharge ball valve assembly equipment according to claim 2, characterized in that: The pre-tightening part of the ash discharge ball valve core includes: Two support plates (2110) are symmetrically installed on the top of the frame (100) along the length of the frame (100) and located on one side of the two valve body clamping cylinders (2010); The pre-tightened translation slide plate (2111) is slidably installed on the top of the two support plates (2110) along the width direction of the frame (100); The pre-tightening lifting plate (2112) is slidably mounted on the top of the pre-tightening translation slide plate (2111) along the height direction of the clamping seat (2011); The valve core preload motor (2113) is fixedly installed on the top of the preload lifting plate (2112); A pneumatic finger (2114) is fixedly installed on the top of the valve core preload motor (2113), and the output shaft of the pneumatic finger (2114) is fixedly connected to the input shaft of the valve core preload motor (2113). Two valve core clamps (2115) are symmetrically installed on the two fingers of the pneumatic finger (2114); Valve core positioning slots (2116) are symmetrically opened on the opposite surfaces of the two valve core clamps (2115).

4. The ash discharge ball valve assembly equipment according to claim 3, characterized in that: The pre-tightening part of the ash discharge ball valve core also includes: The lifting guide rod (2117) is fixedly installed on the top of the pre-tightening translation slide plate (2111) along the width direction of the pre-tightening translation slide plate (2111), and the pre-tightening lifting plate (2112) is slidably installed on the periphery of the two lifting guide rods (2117) through linear bearings; The transmission frame (2118) is fixedly installed on the top of the pre-tightened translation slide plate (2111); The pre-tightening lifting cylinder (2119) is fixedly installed on the top of the pre-tightening lifting plate (2112), and its piston rod passes through the interior of the pre-tightening lifting plate (2112) and is fixedly connected to the top of the transmission frame (2118) through a floating joint.

5. The ash discharge ball valve assembly equipment according to claim 4, characterized in that: The ash discharge ball valve core twisting part includes: The torque drive shaft (2210) is rotatably mounted inside the pre-tensioned translation slide plate (2111) and extends through the top and bottom of the pre-tensioned translation slide plate (2111); The valve core tightening head (2211) is fixedly installed at the bottom of the torque drive shaft (2210); The torque trigger dial (2212) is fixedly installed on the upper part of the outer wall of the torque drive shaft (2210).

6. The ash discharge ball valve assembly equipment according to claim 5, characterized in that: The ash discharge ball valve core twisting part also includes: The tension spring connecting seat (2213) is fixedly installed at one end of the bottom of the torque trigger dial (2212); A fixed support base (2214) is fixedly installed on the top of the pre-tightened translation slide plate (2111); A trigger spring (2215) is fixedly installed between the spring connecting seat (2213) and the fixed support seat (2214). In the initial state, the trigger spring (2215) is in a slightly stretched state. A dial limit block (2216) is fixedly installed on the top of the pre-tightening translation slide plate (2111), and the outer wall of the dial limit block (2216) abuts against the side wall of the torque trigger dial (2212) to prevent the release of the rebound force of the valve core clamp block (2115) in the initial state.

7. The ash discharge ball valve assembly equipment according to claim 6, characterized in that: The ash discharge ball valve core twisting part also includes: The twist trigger cylinder (2217) is fixedly installed on the top of the frame (100) by a bracket and is located at the end of the pre-tightening translation slide plate (2111) away from the valve core clamp (2115); The trigger push block (2218) is fixedly installed on the piston rod output end of the torque trigger cylinder (2217); An elastic abutment (2219) is fixedly installed on the trigger push block (2218), and the telescopic end of the elastic abutment (2219) abuts against the side of the torque trigger dial (2212); The stop post (2220) is fixedly installed on the top of the pre-tightening sliding plate (2111), and in the initial state, the stop post (2220) and the trigger push block (2218) are in contact with the side away from the torque trigger dial (2212); The stop plate (2221) is fixedly installed on the opposite side of the two support plates (2110) away from the twist trigger cylinder (2217) and is used to limit the sliding stroke of the pre-tightening translation slide plate (2111).

8. The ash discharge ball valve assembly equipment according to claim 7, characterized in that: The bottom of the frame (100) has a vertical through hole (101) for material discharge. The material discharge hole (101) is located at one end of the valve body support platform (2013) near the tension spring connecting seat (2213) and near the twisting trigger cylinder (2217).

9. The ash discharge ball valve assembly equipment according to claim 8, characterized in that: The valve core tightening head (2211) is fixed to the bottom of the torque transmission shaft (2210) by bolts, which is suitable for replacing the valve core tightening head (2211).

10. The ash discharge ball valve assembly equipment according to claim 9, characterized in that: The valve body support platform (2013) has a straight groove on its top along its length, and the cross-section of the straight groove is arc-shaped. The inner wall of the arc shape matches the outer wall specification of the valve body of the assembled ash discharge ball valve. The valve body support platform (2013) is fixed to the frame (100) by bolts, which is suitable for the replacement of the valve body support platform (2013).

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