Air conditioner short pipe flaring automatic forming equipment and method

Abstract

The application discloses an air conditioner short pipe flaring automatic forming equipment and method, relates to the technical field of air conditioner short pipe flaring, and the air conditioner short pipe flaring automatic forming equipment and method drive the flaring assembly through a second driving mechanism, make the expansion disc expand outward, then cooperate with the lifting of the expansion disc, make the expansion disc extend to the inside of the U-shaped pipe, flaring is generated at the U-shaped pipe port, prevent the damage caused by the flaring, further expand the U-shaped pipe through the shaping mechanism, and the expansion position corresponds to the gap of the expansion disc expansion, so as to prevent the radius of the gap expansion from being insufficient, the shaping part is difficult to enter, the lifting of the second lifting table is controlled through the first driving mechanism, when the shaping part enters the inside of the U-shaped pipe, a certain shaking is formed, so as to prevent the shaping part from being stuck to the U-shaped pipe port when a certain deviation exists between the shaping part and the vertical direction of the U-shaped pipe.

Description

Technical Field

[0001] This invention relates to the field of air conditioning short pipe flaring technology, and in particular to an automatic forming equipment and method for air conditioning short pipe flaring. Background Technology

[0002] Air conditioning short pipes are the pipes used in the internal refrigeration system of air conditioners. Most of them are metal pipes. During the assembly of the refrigeration system, the pipes need to be flared to facilitate the subsequent connection between pipes.

[0003] Existing flaring equipment typically uses stamping or spiral pressing to form the pipe ends. Before flaring, the pipe needs to be clamped. If the bottom of the pipe is clamped, it is easily damaged by the strong force applied during the flaring process. If the pipe wall is squeezed and fixed, it is easy to damage the pipe wall. During the flaring process, there is a certain deviation between the forming part and the vertical direction of the pipe, which can cause the forming part to get stuck at the pipe end. Furthermore, because the flaring components are separate during the flaring process, the curvature of the pipe wall after flaring is somewhat flat, making it difficult for the forming part to enter the pipe for shaping, thus affecting the connection between the flared pipes.

[0004] Therefore, in order to improve the flaring quality of pipes and ensure the uniformity of the pipe wall after flaring, this invention provides an automatic forming equipment and method for flaring short air conditioning pipes. Summary of the Invention

[0005] I. Technical problem to be solved: The automatic forming equipment and method for flaring air conditioning short pipes provided by the present invention can solve the problems pointed out in the background art above.

[0006] II. Technical Solution: To achieve the above objectives, the present invention adopts the following technical solution: an automatic forming device for flaring air conditioning short pipes, comprising a workbench, with guide rods arranged in a matrix above the workbench, one end of each guide rod welded to the workbench; a cylinder fixedly installed above the workbench, the cylinder being located at the center of several guide rods; a first lifting platform fixedly connected to the output end of the cylinder, the four corners of the first lifting platform being movably sleeved on the guide rods; a first driving mechanism fixedly installed on the upper end of the first lifting platform; a second lifting platform arranged above the first driving mechanism, the four corners of the second lifting platform being movably sleeved on the guide rods; a top plate fixedly connected to one side of the second lifting platform; a cover plate bolted to the top of the top plate; and a second driving mechanism fixedly installed on the upper end of the cover plate. The top plate has a shaft cylinder fixedly connected to both ends at the bottom, and a flared assembly is fixedly connected to the bottom of each shaft cylinder. A plastic part is rotatably sleeved on the outer circumference of the shaft cylinder, and the shaft cylinder and the plastic part are rotatably connected by a bearing. A driven mechanism is provided at the bottom of the top plate, and the plastic part is connected to a second drive mechanism through the driven mechanism. Several dark grooves are evenly opened on the outer circumference of the plastic part, and a plastic mechanism is provided inside each dark groove. A movable plate is movably arranged above the worktable, and a conveyor-type conveyor mechanism is provided on the worktable. The movable plate is fixed on the conveyor mechanism. A clamping mechanism is provided above the movable plate, and a U-shaped tube is connected inside the clamping mechanism. A spring-loaded assembly is provided on one side of the movable plate, and the spring-loaded assembly is connected to the clamping mechanism. A locking assembly is provided on the clamping mechanism.

[0007] The second drive mechanism includes a second servo motor fixedly mounted above the cover plate. A first gear is fixedly connected to the output end of the second servo motor. Second gears are meshed on both sides of the first gear, and the first and second gears are on the same plane. A first drive shaft is fixedly connected to the bottom of each of the two second gears. A recess is formed at the upper end of the top plate, and the first and second gears are located inside the recess. The flared assembly includes a housing fixedly connected to the lower part of a shaft cylinder. A third gear is movably connected to the bottom of the housing cavity, and the upper end of the third gear is fixedly connected to the first drive shaft. Several second gears are evenly distributed circumferentially on the third gear. A helical gear block is provided. A first rack is provided on the side of the first helical gear block near the third gear. The first rack is meshed with the third gear. A guide shaft is movably sleeved inside the first helical gear block. The two ends of the guide shaft are fixedly connected to the inner wall of the box. Several second sliding grooves are provided on the top of the box. A second helical gear block is slidably connected inside each of the several second sliding grooves. Limiting strips are provided on both sides of the second sliding grooves. Limiting grooves are provided on both sides of the second helical gear block. The limiting strips are slidably engaged inside the limiting grooves. The top of the first helical gear block and the bottom of the second helical gear block mesh with each other. An expansion plate is fixedly connected to the upper end of the second helical gear block.

[0008] Preferably, the first drive mechanism includes a first servo motor symmetrically mounted on the upper end of a first lifting platform. Each output end of the first servo motor is rotatably provided with a U-shaped plate, and the bottom of the U-shaped plate is fixedly connected to the upper end of the first lifting platform. A first sliding groove is provided on the U-shaped plate, and a sliding plate is slidably installed in the first sliding groove. A positive shaft gear is fixedly connected between the output ends of the two first servo motors, and the positive shaft gear is eccentrically arranged. A negative shaft gear is provided between the two sliding plates. The positive shaft gear and the negative shaft gear mesh with each other. The upper end of the sliding plate is fixedly connected to the bottom of a second lifting platform. A connecting member connects the positive shaft gear and the negative shaft gear.

[0009] Preferably, a rotating shaft is rotatably connected between the two slide plates, and both ends of the rotating shaft pass through the slide plates respectively. The secondary shaft gear is rotatably sleeved on the outer circumference of the rotating shaft. The connecting member includes a first connecting rod and a second connecting rod. One end of the first connecting rod is rotatably sleeved on the output shaft of a first servo motor, and one end of the second connecting rod is rotatably sleeved on the rotating shaft. The first connecting rod and the second connecting rod are rotatably connected.

[0010] Preferably, the driven mechanism includes a second transmission shaft fixedly connected to the bottom of the first gear, a fourth gear fixedly connected to the bottom of the second transmission shaft, a fifth gear fixedly connected to the upper end of the molded part, and the fifth gear having a hollow structure at its center. The shaft cylinder and the first transmission shaft both pass through the fifth gear. The fourth gear and the fifth gear are on the same plane. A convex slide bar is slidably connected inside the top plate, and a second rack is fixedly connected to the bottom of the convex slide bar. Both the fourth gear and the fifth gear are meshed with the second rack.

[0011] Preferably, the shaping mechanism includes a No. 3 servo motor fixedly installed at the top of the inner cavity of the dark groove, a lead screw fixedly connected to the output end of the No. 3 servo motor, a movable part threadedly connected to the outer circumference of the lead screw, and a torsion spring plate provided at the location of the shaping part in the dark groove, with the movable part abutting against the torsion spring plate.

[0012] Preferably, each of the several dark grooves is provided with a lead screw, and the several lead screws are connected by a belt. The torsion spring plate is provided with a torsion spring inside. When the torsion spring plate is not subjected to external force, the torsion spring applies a force toward the dark groove to the torsion spring plate.

[0013] Preferably, the clamping mechanism includes a vacuum generator fixedly installed above the movable plate. Square tubes are provided on both sides of the upper end of the movable plate, and a flexible tube connects the two square tubes. Connecting pipes are fixedly connected to both sides of the upper end of the two square tubes, and suction cups are fixedly connected to the upper ends of the connecting pipes. The suction cups are perpendicular to the movable plate and have an arc-shaped structure. The two square tubes are a fixed square tube and a movable square tube, respectively. The fixed square tube is fixedly connected to the movable plate, and the movable square tube is movably installed on the movable plate. The fixed square tube communicates with the vacuum generator, and the suction cups above the fixed square tube and the movable square tube cooperate with each other.

[0014] Preferably, the rebound assembly includes a third slide groove at the upper end of the movable plate, a convex slider is slidably disposed inside the third slide groove, a movable square tube is fixedly connected to the top of the convex slider, an L-shaped plate is fixedly connected to one side of the movable square tube, and a spring is connected between the L-shaped plate and the movable plate.

[0015] Preferably, the locking assembly includes a positive locking block fixedly connected to the outer circumference of the suction cup, a lock core plate fixedly connected to one side of the positive locking block, a rotating component rotatably disposed inside the lock core plate, a locking rod fixedly connected to one end of the rotating component, and the lock core plate and the locking rod fitting together. A secondary locking block is also fixedly connected to the outer circumference of the suction cup, and the positive locking block and the secondary locking block are respectively located on the mutually fitting suction cup. A through groove is formed inside the secondary locking block, the length of the through groove being the same as the length of the lock core plate. Positive magnets are disposed at both ends of the locking rod near the lock core plate, and negative magnets are disposed on the lock core plate and the secondary locking block near the locking rod.

[0016] This invention also discloses an automatic forming method for flaring air conditioning short pipes, which specifically includes the following steps;

[0017] S1. To clamp the U-shaped tube, first open the locking assembly by rotating the locking rod, then pull the L-shaped plate to create a sufficient gap between the mating suction cups. Place the end of the U-shaped tube into the middle of the mating suction cups, then release the L-shaped plate to return the spring assembly to its initial position. Then start the vacuum generator to create negative pressure inside the suction cups to adsorb and clamp the U-shaped tube. Finally, rotate the locking rod to lock the suction cups with the locking assembly.

[0018] S2. The U-shaped tube is flared. The first lifting platform is lowered by a cylinder to allow the flaring component to enter the U-shaped tube. Then, the expansion plate is expanded outward by the second servo motor to perform the first-stage flaring of the U-shaped tube. The first lifting platform is lowered again by a cylinder, and the second lifting platform is shaken up and down by the first servo motor to make the shaping part hammer down. After the shaping part enters the U-shaped tube, the torsion spring plate is expanded outward by the third servo motor to perform the second-stage flaring of the U-shaped tube. Then, the first lifting platform is raised by a cylinder, and the second servo motor drives the shaping part to rotate through the driven mechanism to straighten the wall of the U-shaped tube.

[0019] S3. Release the U-tube from the clamp. After the U-tube is flared and released from the flaring assembly, the moving plate continues to flow on the worktable to the subsequent station. When the moving plate reaches the subsequent station, the operator first turns off the vacuum generator, then turns on the locking assembly, and then pulls the spring-loaded assembly to remove the U-tube.

[0020] III. Beneficial Effects:

[0021] 1. The second drive mechanism drives the flaring assembly to expand the flaring disc outward. Combined with the lifting and lowering of the flaring disc, the flaring disc extends into the interior of the U-tube, flaring it from the inside of the U-tube to prevent damage caused by flaring at the U-tube port.

[0022] 2. The U-shaped tube is further expanded by the shaping mechanism, and the expansion position corresponds to the gap of the expansion plate to avoid insufficient expansion curvature at the gap, making it difficult for the shaped part to enter.

[0023] 3. The lifting and lowering of the second lifting platform is controlled by the first driving mechanism, so that the plastic part will vibrate a certain amount when it enters the U-shaped tube, so as to prevent the plastic part from getting stuck at the U-shaped tube port when there is a certain deviation between the plastic part and the vertical direction of the U-shaped tube.

[0024] 4. The driven mechanism is driven by the second driving mechanism, which in turn drives the plastic part to rotate on the inner wall of the U-tube, smoothing the inner wall of the U-tube after it is flared. When the plastic part is pulled out of the U-tube, it rotates to a certain extent, making it easier to pull out of the U-tube.

[0025] 5. The clamping mechanism clamps the U-shaped tube by adsorption, preventing the flaring device from damaging the bottom of the U-shaped tube during flaring and preventing the clamping mechanism from damaging the tube wall due to its strong clamping force.

[0026] 6. The spring-loaded component drives the suction cup to automatically return to its original position, so that the suction cup fits into the U-shaped part, preventing the suction cup from failing to adhere to the U-shaped part if it does not fit properly. In addition, the L-shaped plate blocks the third slide groove to prevent foreign objects from falling into its interior.

[0027] 7. The locking assembly locks the mating suction cups together, forming a single structure. This prevents the suction cups from shifting due to the force exerted by the flaring assembly during the flaring process, thus preventing the U-shaped tube from detaching. Attached Figure Description

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] Figure 1 This is a schematic plan view of the entire invention.

[0030] Figure 2 This is a schematic diagram of the isometric structure of the present invention.

[0031] Figure 3 This is an exploded view of the first driving mechanism structure of the present invention.

[0032] Figure 4 This is a cross-sectional view of the second driving mechanism and the driven driving mechanism of the present invention.

[0033] Figure 5 This is the present invention. Figure 4 Enlarged view of point A in the middle.

[0034] Figure 6 This is a cross-sectional view of the flaring assembly of the present invention.

[0035] Figure 7 This is an exploded view of the flaring assembly of the present invention.

[0036] Figure 8 This is a cross-sectional view of the shaping mechanism of the present invention.

[0037] Figure 9 This is a schematic diagram of the clamping mechanism of the present invention.

[0038] Figure 10 This is a cross-sectional view of the springback assembly of the present invention.

[0039] Figure 11 This is the present invention. Figure 10 Enlarged view of point B in the middle.

[0040] Figure 12 This is a cross-sectional view of the locking assembly of the present invention.

[0041] Figure 13 This is the present invention. Figure 12 Enlarged view of point C.

[0042] Reference numerals: 1. Worktable; 2. Guide rod; 3. Cylinder; 4. First lifting platform; 5. First drive mechanism; 501. First servo motor; 502. U-shaped plate; 503. First slide groove; 504. Slide plate; 505. Spur gear; 506. Countersunk gear; 507. Connecting piece; 6. Second lifting platform; 7. Top plate; 8. Cover plate; 9. Second drive mechanism; 901. Second servo motor; 902. First gear; 903. Second gear; 904. First transmission shaft; 10. Shaft cylinder; 11. Flaring assembly; 111. Housing; 112. Third gear; 113. First helical gear block; 114. First rack; 115. Guide shaft; 116. Second slide groove; 117. Second helical gear block; 118. Limiting strip; 119. Limiting groove; 120. Expanding plate; 13. Molded part; 14. Driven part Drive mechanism; 141. Second drive shaft; 142. Fourth gear; 143. Fifth gear; 144. Convex slide bar; 145. Second rack; 15. Hidden groove; 16. Shaping mechanism; 161. Servo motor No. 3; 162. Lead screw; 163. Belt; 164. Moving part; 165. Torsion spring plate; 17. Moving plate; 18. Clamping mechanism; 181. Vacuum generator; 182. Square tube; 18 3. Hose; 184. Connecting tube; 185. Suction cup; 19. U-shaped tube; 20. Springback assembly; 201. Third slide groove; 202. Convex slider; 203. L-shaped plate; 204. Spring; 21. Locking assembly; 211. Positive locking block; 212. Lock core plate; 213. Rotating component; 214. Locking rod; 215. Secondary locking block; 216. Through groove; 217. Positive magnet; 218. Negative magnet. Detailed Implementation

[0043] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0044] An automatic forming device for flaring air conditioning short pipes according to an embodiment of the present invention is described below with reference to the accompanying drawings. (See attached drawings) Figure 1 , Figure 2 and Figure 8The system includes a workbench 1, with guide rods 2 arranged in a matrix above the workbench 1, one end of which is welded to the workbench 1. A cylinder 3 is fixedly installed above the workbench 1, located at the center of several guide rods 2. The output end of the cylinder 3 is fixedly connected to a first lifting platform 4, with its four corners movably fitted onto the guide rods 2. A first drive mechanism 5 is fixedly installed on the upper end of the first lifting platform 4. A second lifting platform 6 is located above the first drive mechanism 5, with its four corners movably fitted onto the guide rods 2. A top plate 7 is fixedly connected to one side of the second lifting platform 6. A cover plate 8 is bolted to the top of the top plate 7. A second drive mechanism 9 is fixedly installed on the upper end of the cover plate 8. Shaft cylinders 10 are fixedly connected to both ends of the bottom of the top plate 7, and both shaft cylinders 10 are fixedly connected to their bottoms. The flared assembly 11 has a rotatable sleeve of a plastic part 13 on the outer circumference of the shaft cylinder 10, and the shaft cylinder 10 and the plastic part 13 are rotatably connected by a bearing. The bottom of the top plate 7 is provided with a driven mechanism 14, and the plastic part 13 is connected to the second drive mechanism 9 through the driven mechanism 14. Several dark grooves 15 are evenly opened on the outer circumference of the plastic part 13, and each dark groove 15 is provided with a plasticizing mechanism 16. A movable plate 17 is movably arranged above the worktable 1, and a conveyor-type conveyor mechanism is provided on the worktable 1. The movable plate 17 is fixed on the conveyor mechanism. A clamping mechanism 18 is provided above the movable plate 17. A U-shaped tube 19 is connected inside the clamping mechanism 18. A spring-loaded assembly 20 is provided on one side of the movable plate 17, and the spring-loaded assembly 20 is connected to the clamping mechanism 18. A locking assembly 21 is provided on the clamping mechanism 18.

[0045] See Figure 4-5 The second drive mechanism 9 includes a second servo motor 901 fixedly mounted above the cover plate 8. A first gear 902 is fixedly connected to the output end of the second servo motor 901. Second gears 903 are meshed on both sides of the first gear 902. The first gear 902 and the second gears 903 are on the same plane. A first drive shaft 904 is fixedly connected to the bottom of each of the two second gears 903. A recess is provided at the upper end of the top plate 7, and both the first gear 902 and the second gear 903 are located inside the recess. The driven mechanism 14 includes a second servo motor 902 fixedly connected to the bottom of the first gear 902. A second drive shaft 141 has a fourth gear 142 fixedly connected to its bottom. A fifth gear 143 is fixedly connected to the upper end of the molded part 13, and the center of the fifth gear 143 is hollow. The shaft sleeve 10 and the first drive shaft 904 both pass through the fifth gear 143. The fourth gear 142 and the fifth gear 143 are on the same plane. A convex slide rail 144 is slidably connected inside the top plate 7, and a second rack 145 is fixedly connected to the bottom of the convex slide rail 144. Both the fourth gear 142 and the fifth gear 143 are meshed with the second rack 145. (See reference) Figure 6 and Figure 8The flared assembly 11 includes a housing 111 fixedly connected to the lower part of the shaft cylinder 10. A third gear 112 is movably connected to the bottom of the inner cavity of the housing 111, and a first transmission shaft 904 is fixedly connected to the upper end of the third gear 112. Several first helical tooth blocks 113 are evenly distributed around the third gear 112. A first rack 114 is provided on the side of the first helical tooth block 113 near the third gear 112. The first rack 114 meshes with the third gear 112. A guide shaft 115 is movably sleeved inside the first helical tooth block 113. 5. Both ends are fixedly connected to the inner wall of the box body 111. The top of the box body 111 is provided with several second sliding grooves 116, and each of the several second sliding grooves 116 is slidably connected with a second helical tooth block 117. Limiting strips 118 are provided on both sides of the inner side of the second sliding groove 116. Limiting grooves 119 are provided on both sides of the second helical tooth block 117. The limiting strips 118 are slidably engaged in the limiting grooves 119. The top of the first helical tooth block 113 and the bottom of the second helical tooth block 117 mesh with each other. An expansion plate 120 is fixedly connected to the upper end of the second helical tooth block 117.

[0046] During operation, when the second servo motor 901 rotates, the first gear 902 rotates, driving the second gears 903 on both sides, which in turn rotates the first transmission shaft 904 at the bottom of the second gear 903. This, in turn, causes the third gear 112 to rotate, which in turn moves the first rack 114, causing the first helical gear block 113 to slide on the guide shaft 115. Since the second helical gear block 117 and the first helical gear block 113 are obliquely meshed, and the second slide groove 116 guides the second helical gear block 117, the second helical gear block 117 slides within the second slide groove 116, thus moving the expansion disk 120 and causing the second servo motor 901 to rotate clockwise. When the expansion disk 120 retracts inward, and the second servo motor 901 rotates counterclockwise, the expansion disk 120 expands outward. At the same time as the second servo motor 901 rotates, the first gear 902 causes the fourth gear 142 to rotate synchronously with it through the second transmission shaft 141. Then, the fourth gear 142 pushes the second rack 145, which meshes with it, to slide. Since the fifth gear 143 also meshes with the second rack 145, the second rack 145 pushes the fifth gear 143 to rotate during its sliding. Since the fifth gear 143 is fixedly installed on the molding part 13, the molding part 13 rotates synchronously. The rotation direction of the molding part 13 is the same as that of the second servo motor 901.

[0047] See Figure 3The first drive mechanism 5 includes a first servo motor 501 symmetrically mounted on the upper end of the first lifting platform 4. A U-shaped plate 502 is rotatably mounted at the output end of each servo motor 501, and the bottom of the U-shaped plate 502 is fixedly connected to the upper end of the first lifting platform 4. A first sliding groove 503 is provided on the U-shaped plate 502, and a sliding plate 504 is slidably mounted within the first sliding groove. A positive shaft gear 505 is fixedly connected between the output ends of the two servo motors 501, and the positive shaft gear 505 is eccentrically positioned. A secondary shaft gear 506 is provided between the two sliding plates 504. 5 meshes with the secondary shaft gear 506. The upper end of the slide plate 504 is fixedly connected to the bottom of the second lifting platform 6. A connecting piece 507 connects the primary shaft gear 505 and the secondary shaft gear 506. A rotating shaft is rotatably connected between the two slide plates 504, and both ends of the rotating shaft pass through the slide plates 504 respectively. The secondary shaft gear 506 is rotatably sleeved on the outer wall of the rotating shaft. The connecting piece 507 includes a first connecting rod and a second connecting rod. One end of the first connecting rod is rotatably sleeved on the output shaft of the first servo motor 501, and one end of the second connecting rod is rotatably sleeved on the rotating shaft. The first connecting rod and the second connecting rod are rotatably connected.

[0048] During operation, when the No. 1 servo motor 501 is working, the positive shaft gear 505 at its output end rotates, which drives the negative shaft gear 506 meshing with the positive shaft gear 505 to rotate. Due to the eccentric setting of the positive shaft gear 505 and the position limitation of the slide plate 504 by the U-shaped plate 502, the distance from the output end of the No. 1 servo motor 501 to the axis of the negative shaft gear 506 changes continuously during the rotation of the positive shaft gear 505, resulting in the vertical up and down movement of the negative shaft gear 506, which in turn causes the No. 2 lifting platform 6 to slide up and down along the guide rod 2, causing the plastic part 13 to shake up and down.

[0049] See Figure 8 The shaping mechanism 16 includes a No. 3 servo motor 161 fixedly installed at the top of the inner cavity of the groove 15. The output end of the No. 3 servo motor 161 is fixedly connected to a lead screw 162. A moving part 164 is threadedly connected to the outer circumference of the lead screw 162. Each shaping part 13 is provided with a torsion spring plate 165 at the location of the groove 15. The moving part 164 abuts against the torsion spring plate 165. Lead screws 162 are provided in several grooves 15, and belts 163 are connected between several lead screws 162. A torsion spring is provided inside the torsion spring plate 165. When the torsion spring plate 165 is not subjected to external force, the torsion spring applies a force toward the groove 15 to the torsion spring plate 165.

[0050] During operation, when servo motor 161 rotates clockwise, lead screw 162 rotates clockwise, and multiple lead screws 162 are driven by belt 163, so that multiple lead screws 162 rotate synchronously, causing the moving part 164 on the lead screw 162 to move downward. Since the torsion spring plate 165 is in contact with the moving part 164 and has a certain curvature, the moving part 164 applies a force to the bottom of the torsion spring plate 165 during the downward movement. Since the upper end of the torsion spring plate 165 is fixed by the torsion spring (it can rotate through the torsion spring, but cannot move laterally), the moving part 164 pushes the lower end of the torsion spring plate 165 to expand outward. When servo motor 161 rotates counterclockwise, lead screw 162 rotates counterclockwise, the moving part 164 moves upward, and the torsion spring plate 165 loses the thrust of the moving part 164. Under the action of the torsion spring, the torsion spring plate 165 retracts into the dark groove 15.

[0051] See Figure 9 The clamping mechanism 18 includes a vacuum generator 181 fixedly installed above the movable plate 17. Square tubes 182 are provided on both sides of the upper end of the movable plate 17. A flexible hose 183 is connected between the two square tubes 182. Connecting pipes 184 are fixedly connected to both sides of the upper end of the two square tubes 182. A suction cup 185 is fixedly connected to the upper end of the connecting pipe 184. The suction cup 185 is perpendicular to the movable plate 17 and has an arc-shaped structure. The two square tubes 182 are a fixed square tube and a movable square tube, respectively. The fixed square tube is fixedly connected to the movable plate 17, and the movable square tube is movably installed on the movable plate 17. The fixed square tube is connected to the vacuum generator 181. The suction cup 185 above the fixed square tube and the suction cup 185 above the movable square tube cooperate with each other.

[0052] When working; when the vacuum generator 181 is working, the vacuum generator 181 discharges the air in the square tube 182, hose 183, connecting pipe 184 and suction cup 185 to generate negative pressure, thereby causing the suction cup 185 to adsorb the workpiece (the workpiece is a U-shaped copper tube in an air conditioner, which is small in size and light in weight, and the negative pressure adsorption force is between 30-60 Pa, and the adsorption surface required by the suction cup 185 to pick up the workpiece is small, so the negative pressure adsorption is sufficient to support the workpiece).

[0053] See Figure 10 and Figure 11 The rebound assembly 20 includes a third slide groove 201 opened at the upper end of the movable plate 17. A convex slider 202 is slidably arranged inside the third slide groove 201. A movable square tube is fixedly connected to the top of the convex slider 202. An L-shaped plate 203 is fixedly connected to one side of the movable square tube. A spring 204 is connected between the L-shaped plate 203 and the movable plate 17.

[0054] During operation, when the L-shaped plate 203 is pulled, the convex slider 202 slides in the third slide groove 201, and at the same time the spring 204 between the L-shaped plate 203 and the moving plate 17 is stretched. When the pulling force is removed, the contraction force of the spring 204 pulls the L-shaped plate 203 back to its original position.

[0055] See Figure 12 and Figure 13 The locking assembly 21 includes a positive locking block 211 fixedly connected to the outer circumference of the suction cup 185. A lock core plate 212 is fixedly connected to one side of the positive locking block 211. A rotating component 213 is rotatably arranged inside the lock core plate 212. A locking rod 214 is fixedly connected to one end of the rotating component 213, and the lock core plate 212 and the locking rod 214 are in contact. A secondary locking block 215 is also fixedly connected to the outer circumference of the suction cup 185. The positive locking block 211 and the secondary locking block 215 are respectively located on the suction cup 185 that are in contact with each other. A through groove 216 is opened through the interior of the secondary locking block 215. The length of the through groove 216 is the same as the length of the lock core plate 212. Positive magnets 217 are provided at both ends of the locking rod 214 near the lock core plate 212. Negative magnets 218 are provided on the lock core plate 212 and the secondary locking block 215 near the locking rod 214.

[0056] When in operation; when opening the locking assembly 21, rotate the locking rod 214 (rotating part 213 rotates inside the lock core plate 212), causing the positive magnet 217 on the locking rod 214 to move towards the negative magnet 218 on the lock core plate 212. Due to the attraction of the magnets, when the positive magnet 217 on the locking rod 214 comes into contact with the negative magnet 218 on the lock core plate 212, the locking rod 214 is attracted to the lock core plate 212, so that the locking rod 214 and the lock core plate 212 can pass through the through slot 216, so that there is no obstruction between the positive locking block 211 and the secondary locking block 215. When closing the locking assembly 21, rotate the locking rod 214, causing the negative magnet 218 on the secondary locking block 215 to attract the positive magnet 217 on the locking rod 214, so that an obstruction is formed between the positive locking block 211 and the secondary locking block 215, and the locking assembly 21 can be closed.

[0057] The following describes an automatic forming method for flaring an air conditioning short pipe according to an embodiment of the present invention, with reference to the accompanying drawings. Figure 1-13S1. To clamp the U-shaped tube 19, first, open the locking assembly 21 by rotating the locking rod 214, then pull the L-shaped plate 203 to create a sufficient gap between the mating suction cups 185. Place the end of the U-shaped tube 19 between the mating suction cups 185, then release the L-shaped plate 203 to return the spring assembly 20 to its initial position. Then, start the vacuum generator 181 to create negative pressure inside the suction cups 185 to adsorb and clamp the U-shaped tube 19. Then, rotate the locking rod 214 to lock the suction cups 185 with the locking assembly 21. S2. To flare the U-shaped tube 19, drive the first lifting platform 4 to descend using the cylinder 3, allowing the flaring assembly 11 to enter the U-shaped tube 19. Then, drive the expansion plate 120 to expand outward using the second servo motor 901 to flare the U-shaped tube 19 in one stage. Then, drive the first lifting platform 4 to continue descending using the cylinder 3. The first servo motor 501 drives the second lifting platform 6 to perform up-and-down shaking motions, causing the shaping part 13 to perform a downward hammering motion. After the shaping part 13 enters the U-shaped tube 19, the third servo motor 161 drives the torsion spring plate 165 to expand outwards, performing a secondary flaring of the U-shaped tube 19. Then, the cylinder 3 drives the first lifting platform 4 to rise, and the second servo motor 901 drives the shaping part 13 to rotate through the driven mechanism 14, so that the shaping part 13 straightens the tube wall of the U-shaped tube 19. S3, the U-shaped tube 19 is released from the clamp. After the U-shaped tube 19 is flared and released from the flaring assembly 11, the moving plate 17 continues to flow on the worktable 1 to the subsequent work station. When the moving plate 17 reaches the subsequent work station, the operator first turns off the vacuum generator 181, then opens the locking assembly 21, and then pulls the spring-loaded assembly 20 to remove the U-shaped tube 19.

[0058] During operation, this invention is based on the operator's operation of corresponding workstations. A conveyor system is installed on the workbench 1, with a moving plate 17 fixed to the conveyor system. The sequence of workstations includes a loading station, a flaring station, and a unloading station. The U-shaped tube 19 is clamped by a clamping mechanism 18 to facilitate subsequent flaring. Specifically, the operator opens the locking assembly 21 by rotating the locking rod 214, causing its positive magnet 217 to attract the negative magnet 218 on the lock core plate 212. The operator then pulls the L-shaped plate 203 towards themselves, causing the lock core plate 212 to pass through the through slot 216, disengaging the secondary locking block 215 from the primary locking block 211. Finally, the two ends of the U-shaped tube 19 are placed between the cooperating suction cups 185. Release the L-shaped plate 203 to return it to its initial position, then activate the vacuum generator 181. The vacuum generator 181 expels the air from the suction cup 185, connecting pipe 184, hose 183, and square tube 182, creating a negative pressure inside the suction cup 185, which attracts the U-shaped tube 19 onto the suction cup 185. Then, rotate the locking rod 214 again, causing its positive magnet 217 to attract the negative magnet 218 on the secondary locking block 215. Further, the clamped U-shaped tube 19 is transported directly below the flaring assembly 11. First, the cylinder 3 retracts, causing the first lifting platform 4 to descend a certain distance, and the flaring assembly 11 enters the U-shaped tube 19. At this time, the cylinder 3 stops, and then the second servo motor 901 starts, causing the expansion plate 120 to expand outward, thus expanding the U-shaped tube 19. The pipe wall at the opening expands outward. After the U-shaped tube 19 expands, the second servo motor 901 rotates counterclockwise, and the expanding plate 120 retracts inward, preparing for the flaring assembly 11 to pull out the U-shaped tube 19. Further, the cylinder 3 continues to retract, causing the first lifting platform 4 to continue descending, and the shaping part 13 enters the U-shaped tube 19. During the process of the shaping part 13 entering the U-shaped tube 19, the first servo motor 501 operates, driving the second lifting platform 6 to perform an up-and-down shaking motion, causing the shaping part 13 to form a downward hammering motion. Because there will be gaps between the expanding plates 120 when they expand outward, and these gaps are not supported by a rigid arc structure, the gaps cannot form an arc during expansion, preventing the shaping part 13 from getting stuck when entering the U-shaped tube 19. After part 13 is fully inserted into the U-shaped tube 19, servo motor 501 stops, cylinder 3 stops again, and then servo motor 161 starts. Torsion spring plate 165 expands outward to expand the missing part of the flared opening of U-shaped tube 19, making the arc of the flared opening of U-shaped tube 19 more rounded. After U-shaped tube 19 expands again, servo motor 161 works counterclockwise, and torsion spring plate 165 retracts inward to prepare for part 13 to be pulled out of U-shaped tube 19. Furthermore, cylinder 3 extends, causing lifting platform 4 to rise, and part 13 is pulled out of U-shaped tube 19. During the process of pulling out part 13, servo motor 901 drives part 13 to rotate under the transmission action of driven mechanism 14, so that part 13 straightens the tube wall of U-shaped tube 19.

[0059] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An automatic forming device for flaring air conditioning short pipes, comprising a workbench (1), characterized in that: The workbench (1) is provided with guide rods (2) in a matrix above it, and one end of the guide rods (2) is welded to the workbench (1). A cylinder (3) is fixedly installed above the workbench (1), and the cylinder (3) is located at the center of several guide rods (2). The output end of the cylinder (3) is fixedly connected to a first lifting platform (4), and the four corners of the first lifting platform (4) are movably sleeved on the guide rods (2). A first driving mechanism (5) is fixedly installed on the upper end of the first lifting platform (4), and a second lifting platform (6) is provided above the first driving mechanism (5). The four corners of the second lifting platform (6) are movably sleeved on the guide rod (2). A top plate (7) is fixedly connected to one side of the second lifting platform (6). A cover plate (8) is bolted to the top of the top plate (7). A second drive mechanism (9) is fixedly installed on the upper end of the cover plate (8). A shaft cylinder (10) is fixedly connected to both ends of the bottom of the top plate (7). A flared assembly (11) is fixedly connected to the bottom of both shaft cylinders (10). A plastic part (13) is rotatably sleeved on the outer circumference of the shaft cylinder (10). The shaft cylinder (10) and the plastic part (13) are rotatably connected by a bearing. The top plate (7) is provided with a driven mechanism (14) at the bottom. The plastic part (13) is connected to the second drive mechanism (9) through the driven mechanism (14). The outer circumference of the plastic part (13) is evenly provided with several dark grooves (15), and each dark groove (15) is provided with a plastic mechanism (16). A movable plate (17) is movably provided above the workbench (1). A conveyor system is provided on the workbench (1). The movable plate (17) is fixed on the conveyor system. A clamping mechanism (18) is provided above the movable plate (17). A U-shaped tube (19) is connected inside the clamping mechanism (18). A spring-loaded component (20) is provided on one side of the movable plate (17), and the spring-loaded component (20) is connected to the clamping mechanism (18). A locking component (21) is provided on the clamping mechanism (18). The shaping mechanism (16) includes a No. 3 servo motor (161) fixedly installed at the top of the inner cavity of the groove (15). The output end of the No. 3 servo motor (161) is fixedly connected to a lead screw (162). A moving part (164) is threadedly connected to the outer circumference of the lead screw (162). The shaping part (13) is provided with a torsion spring plate (165) at the location of the groove (15). The moving part (164) abuts against the torsion spring plate (165). Each of the aforementioned slots (15) is provided with a lead screw (162), and a belt (163) is connected between the aforementioned lead screws (162). A torsion spring is provided inside the torsion spring plate (165). When the torsion spring plate (165) is not subjected to external force, the torsion spring applies a force toward the slot (15) to the torsion spring plate (165). The clamping mechanism (18) includes a vacuum generator (181) fixedly installed above the movable plate (17). Square tubes (182) are provided on both sides of the upper end of the movable plate (17). A flexible hose (183) is connected between the two square tubes (182). Connecting pipes (184) are fixedly connected to both sides of the upper end of the two square tubes (182). A suction cup (185) is fixedly connected to the upper end of the connecting pipe (184). The suction cup (185) is perpendicular to the movable plate (17). The suction cup (185) has an arc-shaped structure. The two square tubes (182) are a fixed square tube and a movable square tube, respectively. The fixed square tube is fixedly connected to the movable plate (17). The movable square tube is movably installed on the movable plate (17). The fixed square tube is connected to the vacuum generator (181). The suction cup (185) above the fixed square tube and the suction cup (185) above the movable square tube cooperate with each other.

2. The automatic forming equipment for flaring air conditioning short pipes according to claim 1, characterized in that: The second drive mechanism (9) includes a second servo motor (901) fixedly installed above the cover plate (8). The output end of the second servo motor (901) is fixedly connected to a first gear (902). The first gear (902) is meshed with second gears (903) on both sides. The first gear (902) and the second gears (903) are on the same plane. The bottom of the two second gears (903) is fixedly connected to a first transmission shaft (904). The top plate (7) has a recessed groove at its upper end. The first gear (902) and the second gears (903) are both located inside the recessed groove. The flared assembly (11) includes a housing (111) fixedly connected to the bottom of the shaft cylinder (10). The bottom of the inner cavity of the housing (111) is movably connected to a third gear (112). The upper end of the third gear (112) is fixedly connected to the first transmission shaft (904). The third gear (112) has several first helical tooth blocks (113) evenly distributed around its circumference. The first helical tooth block (113) has a first rack (114) on the side near the third gear (112). The first rack (114) meshes with the third gear (112). A guide shaft (115) is movably sleeved inside the first helical tooth block (113), and both ends of the guide shaft (115) are fixedly connected to the inner wall of the housing (111). The top of the housing (111) has several second sliding grooves (116), and the several second sliding grooves... (116) is slidably connected with a second helical tooth block (117). The second slide groove (116) is provided with limit strips (118) on both sides. The second helical tooth block (117) is provided with limit grooves (119) on both sides. The limit strips (118) are slidably engaged in the limit grooves (119). The top of the first helical tooth block (113) and the bottom of the second helical tooth block (117) mesh with each other. The upper end of the second helical tooth block (117) is fixedly connected with an expansion plate (120).

3. The automatic forming equipment for flaring air conditioning short pipes according to claim 2, characterized in that: The first drive mechanism (5) includes a first servo motor (501) symmetrically mounted on the upper end of the first lifting platform (4). A U-shaped plate (502) is rotatably provided at the output end of the first servo motor (501), and the bottom of the U-shaped plate (502) is fixedly connected to the upper end of the first lifting platform (4). A first slide groove (503) is provided on the U-shaped plate (502), and a slide plate (504) is slidably installed in the first slide groove. A spur gear (505) is fixedly connected between the output ends of the two first servo motors (501), and the spur gear (505) is eccentrically set. A counterspur gear (506) is provided between the two slide plates (504). The spur gear (505) and the counterspur gear (506) mesh with each other. The upper end of the slide plate (504) is fixedly connected to the bottom of the second lifting platform (6), and a connector (507) is connected between the spur gear (505) and the counterspur gear (506).

4. The automatic forming equipment for flaring air conditioning short pipes according to claim 3, characterized in that: A rotating shaft is rotatably connected between the two slide plates (504), and the two ends of the rotating shaft pass through the slide plates (504) respectively. The secondary shaft gear (506) is rotatably sleeved on the outer wall of the rotating shaft. The connecting member (507) includes a first connecting rod and a second connecting rod. One end of the first connecting rod is rotatably sleeved on the output shaft of the first servo motor (501), and one end of the second connecting rod is rotatably sleeved on the rotating shaft. The first connecting rod and the second connecting rod are rotatably connected. The driven mechanism (14) includes a second transmission shaft (141) fixedly connected to the bottom of the first gear (902), a fourth gear (142) fixedly connected to the bottom of the second transmission shaft (141), a fifth gear (143) fixedly connected to the upper end of the molded part (13), and the fifth gear (143) has a hollow structure at its center. The shaft cylinder (10) and the first transmission shaft (904) both pass through the fifth gear (143). The fourth gear (142) and the fifth gear (143) are on the same plane. A convex slide bar (144) is slidably connected inside the top plate (7), and a second rack (145) is fixedly connected to the bottom of the convex slide bar (144). The fourth gear (142) and the fifth gear (143) are both meshed with the second rack (145).

5. The automatic forming equipment for flaring air conditioning short pipes according to claim 3, characterized in that: The rebound assembly (20) includes a third slide groove (201) opened at the upper end of the moving plate (17). A convex slider (202) is slidably arranged inside the third slide groove (201). A moving square tube is fixedly connected to the top of the convex slider (202). An L-shaped plate (203) is fixedly connected to one side of the moving square tube. A spring (204) is connected between the L-shaped plate (203) and the moving plate (17).

6. The automatic forming equipment for flaring air conditioning short pipes according to claim 5, characterized in that: The locking assembly (21) includes a positive locking block (211) fixedly connected to the outer circumference of the suction cup (185). A lock core plate (212) is fixedly connected to one side of the positive locking block (211). A rotating component (213) is rotatably arranged inside the lock core plate (212). A locking rod (214) is fixedly connected to one end of the rotating component (213), and the lock core plate (212) and the locking rod (214) are in contact. A secondary locking block (215) is also fixedly connected to the outer circumference of the suction cup (185). The main locking block (211) and the secondary locking block (215) are respectively located on the suction cup (185) that fit together. The secondary locking block (215) has a through groove (216) that runs through it. The length of the through groove (216) is the same as the length of the lock core plate (212). Positive magnets (217) are provided at both ends of the locking rod (214) near the lock core plate (212). Negative magnets (218) are provided on the side of the lock core plate (212) and the secondary locking block (215) near the locking rod (214).

7. An automatic forming method for flaring air conditioning short pipes, applied to the automatic forming equipment for flaring air conditioning short pipes as described in claim 6, characterized in that: Specifically, it includes the following steps; S1. To clamp the U-tube (19), first open the locking assembly (21) by rotating the locking rod (214), then pull the L-shaped plate (203) to make the gap between the mating suction cups (185) wide enough, place the end of the U-tube (19) into the middle of the mating suction cups (185), then release the L-shaped plate (203) to make the spring-loaded assembly (20) return to the initial position, then start the vacuum generator (181) to generate negative pressure inside the suction cups (185) to adsorb and clamp the U-tube (19), then rotate the locking rod (214) to make the locking assembly (21) lock the suction cups (185); S2. The U-shaped tube (19) is flared. The first lifting platform (4) is driven by the cylinder (3) to descend, so that the flaring component (11) enters the U-shaped tube (19). Then, the expansion plate (120) is driven by the second servo motor (901) to expand outward, so as to flare the U-shaped tube (19) in the first stage. The first lifting platform (4) is driven by the cylinder (3) to continue to descend, and the first servo motor (501) drives the second lifting platform (6) to make up-and-down shaking motion, so that the plastic part ( 13) Make a hammering motion. After the shaping part (13) enters the U-shaped tube (19), the torsion spring plate (165) is driven to expand outward by the third servo motor (161) to perform secondary flaring of the U-shaped tube (19). Then, the first lifting platform (4) is driven to rise by the cylinder (3), and the second servo motor (901) drives the shaping part (13) to rotate through the driven mechanism (14) so ​​that the shaping part (13) can straighten the tube wall of the U-shaped tube (19). S3. Release the U-tube (19) from the clamp. After the U-tube (19) is flared and released from the flaring assembly (11), the moving plate (17) continues to flow on the worktable (1) to the subsequent station. When the moving plate (17) reaches the subsequent station, the operator first turns off the vacuum generator (181), then turns on the locking assembly (21), and then pulls the spring-loaded assembly (20) to remove the U-tube (19).

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