A processing technology of a faucet elbow

Abstract

The application discloses a processing technology of a faucet elbow pipe, which comprises the following steps: step one, a mechanical hand is used to grab a pipe to be processed in a stock bin and then the pipe is conveyed to a machine tool one, and the machine tool one is used to process inlet threads on one end of the pipe; step two, after the processing is completed, the pipe is conveyed to a bending machine by the mechanical hand, and the other end of the pipe is subjected to bending treatment; step three, the pipe after bending is conveyed to a cutting and shaping machine by the mechanical hand, and the pipe is subjected to cutting and shaping treatment; step four, the mechanical hand is used to place the pipe on a positioning piece, and then the pipe is conveyed to a machine tool two, and the machine tool two is used to process outlet threads on the other end of the pipe; and step five, the mechanical hand is used to convey the processed pipe to a conveying belt, and the pipe is dropped into a dropping frame by the conveying belt. The application has the beneficial effects that work efficiency is improved, the safety hidden danger of operation is reduced, and the quality control of the faucet pipe is facilitated.

Description

Technical Field

[0001] This invention relates to the technical field of faucet bends, and in particular to a processing technology for faucet bends. Background Technology

[0002] A faucet is a common term for a water valve, used to control the flow of water and thus saving water. Faucets are constantly being updated, evolving from old-fashioned cast iron faucets to electroplated knob faucets, and then to stainless steel single-temperature single-control faucets, stainless steel dual-temperature dual-control faucets, and semi-automatic kitchen faucets. Now, more and more consumers consider factors such as material, function, and design when purchasing faucets, leading to increasingly stringent requirements for the processing of faucet fittings.

[0003] In the existing technology, the processing of faucet fittings requires multiple processes, especially the processing of bends, which is more complex. Therefore, it is often necessary to manually transfer faucet fittings from one process to the next, resulting in low work efficiency. In particular, as the demand for faucet fittings increases, it adds a lot of labor to front-line workers, which is not conducive to the quality control of faucet fittings. Summary of the Invention

[0004] The present invention aims to overcome the shortcomings of low processing efficiency in the existing technology of faucet fittings and provides a processing technology for faucet bends that can improve work efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A processing method for a faucet bend includes the following steps:

[0007] Step 1: The robotic arm grabs the pipe fittings to be processed in the hopper and transfers them to machine tool 1. Machine tool 1 processes the imported threads on one end of the pipe fittings.

[0008] Step two: After processing, the pipe fitting is transported to the bending machine by a robotic arm, and the other end of the pipe fitting is bent.

[0009] Step 3: After bending, the pipe fittings are transported by a robotic arm to a cutting and shaping machine for cutting and shaping.

[0010] Step four: The robot places the pipe on the positioning piece, which facilitates secondary positioning of the bent pipe and also facilitates counting of the pipe. Then the pipe is transferred to the second machine tool. The second machine tool processes the outlet thread on the other end of the pipe. After the pipe is placed into the second machine tool after secondary positioning, it is easier for the second machine tool to accurately position the pipe, thereby improving the processing accuracy of the outlet thread.

[0011] Step 5: The robotic arm transfers the processed pipe fittings onto the conveyor belt, and the pipe fittings are then transported by the conveyor belt into the material drop box.

[0012] The robotic arm is used to transport pipe fittings between the hopper, machine tool one, bending machine, cutting and shaping machine, positioning parts, machine tool two, and conveyor belt, and collects them in the dropping frame via the conveyor belt. This realizes the operation of the entire production line for faucet pipe bending through the robotic arm, which can improve work efficiency, reduce operational safety hazards, and facilitate the quality control of faucet pipe fittings.

[0013] Preferably, in step one, the specific steps for the robot to transfer the pipe fitting into machine tool one are as follows:

[0014] Step A: The control system lowers the lifting arm so that the gripper is inside the hopper;

[0015] Step B: The control system starts the finger cylinder, enabling it to grip the corresponding pipe. After gripping, the lifting arm is raised.

[0016] Step C: The control system controls the robot arm to move along the gantry to directly above machine tool one;

[0017] Step D: The control system lowers the lifting arm, sending the pipe fitting from directly above the machine tool into the corresponding position within the machine tool. The machine tool then positions the pipe fitting and processes the imported threads. The control system controls the lifting arm's raising and lowering operation, facilitating the gripper cylinders to grasp and transport the pipe fitting. This allows the robotic arm to move along the gantry, enabling the pipe fitting to be transferred between different processes, significantly saving labor and improving work efficiency.

[0018] Preferably, the control system can adjust the position of the finger cylinder by controlling a lead screw stepper motor and a rotary motor. When the lead screw stepper motor is working, it drives the sliding block to move horizontally, thereby causing the finger cylinder and the rotary motor to move synchronously. The rotary motor can drive the finger cylinder to rotate at a certain angle. This improves the degree of freedom of the robot and allows it to adapt to different workflows.

[0019] Preferably, the specific steps of the bending process in step two are as follows:

[0020] Step S1: The left clamping block is located at one end of the left limiting block. The robot arm inserts the pipe into the arc-shaped limiting groove 2 and the arc-shaped clamping groove 2 from the other end of the left limiting block.

[0021] In step S2, the control system controls cylinder one and cylinder two to start simultaneously. Cylinder one drives slider one to slide, and cylinder two drives slider two to slide, so that the right limiting block and the right clamping block move synchronously until the surface of the pipe comes into contact with the arc-shaped limiting groove one and the arc-shaped clamping groove one respectively. At this time, the pipe is positioned under the combined action of the left limiting block and the right limiting block, as well as the left clamping block and the right clamping block.

[0022] Step S3: The control system controls the robotic arm to detach from the pipe and retracts the robotic arm to facilitate the bending operation of the pipe.

[0023] Step S4: The control system starts the oil pump and delivers the oil in the oil tank to the arc-shaped limiting groove one and the arc-shaped limiting groove two respectively, so as to facilitate spraying on the surface of the pipe fitting.

[0024] Step S5: The control system starts the drive motor, which rotates the worktable two at a certain angle. At the same time, the left and right clamping blocks rotate synchronously. During the rotation, the end of the pipe that is limited by the left and right limiting blocks moves relative to the arc-shaped limiting groove one and arc-shaped limiting groove two. Since the grease is sprayed on the surface of the pipe, the wear of the pipe surface is reduced during this movement, making the pipe less prone to deformation and helping to ensure the dimensional accuracy of the pipe. The other end of the pipe is positioned by the mutual clamping of the arc-shaped clamping groove one and arc-shaped clamping groove two and rotates together. The pipe is bent along the bending direction of the arc-shaped clamping groove two, which helps to improve the accuracy of the bending radius of the pipe.

[0025] Step S6: After bending is completed, the control system controls the oil pump and drive motor to stop working respectively, and at the same time, controls the robotic arm to clamp the pipe.

[0026] In step S7, the control system controls cylinder one and cylinder two to drive the right limit block and the right clamping block to move in opposite directions, so that the pipe is released from the clamping state. Then, the control robot is controlled to transport the pipe to the cutting and shaping machine.

[0027] Preferably, in step S4, the oil in the oil drum, under the action of the oil pump, is sent into the oil chamber of the left limiting block through the delivery pipe, and then sequentially enters the oil chamber of the right limiting block through the second flow hole and the corresponding first flow hole. The oil in the oil chamber is sprayed onto the surface of the pipe fitting through the spray hole. This allows the grease to be evenly coated on the outer wall of the pipe fitting during bending and movement, further reducing the wear on the pipe fitting surface and thus improving the dimensional accuracy of the pipe fitting.

[0028] Preferably, in steps S6 and S7, the control system controls the robotic arm to move directly above the first and second clearance notches, then controls the robotic arm to extend and grip the pipe. After the pipe is released from the gripping state, the control system finally controls the robotic arm to retract, causing the pipe to be released from the bending machine and transferred to the cutting and shaping machine. The first and second clearance notches facilitate the robotic arm's gripping of the pipe, realizing the transfer of the pipe.

[0029] As a preferred option, the specific operating steps of the cutting and shaping machine are as follows:

[0030] Step A1: The robotic arm transports the pipe fitting to the lifting platform, so that the bent part of the pipe fitting is located between the arc-shaped limiting protrusion and the positioning block;

[0031] Step A2: The control system controls cylinder three to work, causing the positioning block to move toward the lifting platform until the bent part of the pipe is limited to the circular space formed by the first and second arc grooves. At this time, the positioning block is on the lifting platform, and the part of the pipe clamped by the first and second arc clamping grooves is outside the circular space formed by the first and second arc grooves and is directly above the material drop port. Since the clamped part of the pipe is deformed, placing this part outside the circular space formed by the first and second arc grooves makes it easier for the cutting device to cut it off.

[0032] Step A3: The control system controls the lifting platform to rise to the set position. Since the telescopic shaft one is slidably connected to the positioning block, the positioning block can rise together with the lifting platform, so that the pipe is always in a fixed state, so that the cutting device can cut the clamping part of the pipe. The cutting device cuts off the part of the pipe clamped by the arc-shaped clamping groove one and the arc-shaped clamping groove two and forms a cut at the end of the pipe. The cut waste falls into the discharge port, which helps to prevent waste accumulation and keep it clean.

[0033] Step A4: After cutting, the cut is shaped by a shaping device to improve the roundness of the cut, thus facilitating the machining of the exit thread on the second machine tool.

[0034] In step A5, the control system controls the lifting platform to descend, the positioning block descends accordingly, and controls cylinder three to work again, causing the positioning block to move in the opposite direction a certain distance. The robotic arm then grips the pipe and transfers it to the positioning block.

[0035] Preferably, in step A3, the specific operating steps of the cutting device are as follows:

[0036] Step B1: The control system controls cylinder six to change the vertical position of the electric cutting wheel so that it is positioned at the location where the pipe needs to be cut.

[0037] Step B2: The control system controls the second rotating motor and the electric cutting wheel to work. The second rotating motor drives the connecting rod to rotate, and the electric cutting wheel cuts the pipe fitting.

[0038] Step B3: After cutting is completed, the electric cutting wheel stops working, and at the same time, the control system controls the second rotating motor to work again. The second rotating motor drives the connecting rod to rotate in the opposite direction, so that the electric cutting wheel gradually moves away from the material discharge port. The second rotating motor enables the electric cutting wheel to rotate under the drive of the connecting rod, avoiding interference with the robot arm during the sliding process, thus facilitating the robot arm to pick up the pipe fittings. At the same time, it can make adaptive adjustments to different cutting requirements of the pipe fittings, making it highly practical.

[0039] As a preferred option, the specific steps of the plastic surgery procedure are as follows:

[0040] Step C1: The control system controls cylinder four to work, pushing the moving block toward the cut end of the pipe fitting until the inner wall shaping block is located inside the cut. At this time, the arc surface of the inner wall shaping block is in contact with the inner wall of the pipe fitting.

[0041] Step C2: The control system controls cylinder five to work, and cylinder five drives the outer wall shaping block to move until the arc-shaped concave surface of the outer wall shaping block fits against the outer wall of the pipe fitting.

[0042] Step C3: The control system controls the rotating motor to work. The rotating motor drives the support plate to rotate. At the same time, the inner wall shaping block and the outer wall shaping block rotate synchronously. During the rotation, the inner wall shaping block shapes the inner wall of the pipe through the arc surface, and the outer wall shaping block shapes the outer wall of the pipe through the arc-shaped concave surface. This helps to improve the roundness of the pipe and the uniformity of the thickness of the pipe sidewall.

[0043] Step C4: After the shaping is completed, the control system controls cylinder five to work again. Cylinder five drives the outer wall shaping block to move in the opposite direction, causing it to detach from the outer wall of the pipe fitting. Then, the control system controls cylinder four to work, causing the moving block to move in the opposite direction, ultimately causing the inner wall shaping block and the outer wall shaping block to detach from the pipe fitting.

[0044] Preferably, the robotic arm places the cut and shaped pipe fitting into the positioning groove, so that the cut end of the pipe fitting contacts the convex plate, the bent portion of the pipe fitting is confined within the first limiting groove, and the end of the pipe fitting with the inlet thread is confined within the second limiting groove. The design of the convex plate, the first limiting groove, and the second limiting groove facilitates secondary positioning of the pipe fitting when placed in the positioning groove, and enables precise positioning when transported by the robotic arm to the second machine tool. This facilitates precise machining of the outlet thread and also makes it easier to count the pipe fittings.

[0045] The beneficial effects of this invention are: improved work efficiency, reduced operational safety hazards, and facilitated quality control of faucet fittings; facilitated secondary positioning of bent fittings, enabling precise positioning of fittings by the machine tool, thereby improving the processing accuracy of the outlet thread and facilitating fitting counting; high degree of freedom for the robotic arm, allowing it to adapt to different workflows; reduced wear on the fitting surface, making it less prone to deformation and ensuring dimensional accuracy; improved accuracy of the bending radius; prevention of waste accumulation and maintenance of cleanliness; improved roundness at the cut; improved uniformity of the fitting sidewall thickness; facilitated robotic arm handling of fittings, and adaptable adjustments to different cutting requirements, making it highly practical. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of the structure involved in this invention;

[0047] Figure 2 yes Figure 1 Schematic diagram of the structure of the bending machine;

[0048] Figure 3 yes Figure 2 Top view;

[0049] Figure 4 yes Figure 2 Sectional view of AA;

[0050] Figure 5 This is a structural diagram of the cutting and shaping machine in the equipment;

[0051] Figure 6 yes Figure 5 Enlarged view of the structure at point B;

[0052] Figure 7 This is a structural diagram of the positioning component in the equipment;

[0053] Figure 8 This is a schematic diagram of the gripper structure in the equipment.

[0054] In the diagram: 1. Truss, 2. Hopper, 3. Machine Tool 1, 4. Bending Machine, 5. Cutting and Shaping Machine, 6. Machine Tool 2, 7. Robot Arm, 8. Limiting Component, 9. Bending Component, 10. Workbench 1, 11. Oil Drum, 12. Limiting Part, 13. Conveying Pipe, 14. Oil Pump, 15. Workbench 2, 16. Drive Motor, 17. Clamping Part, 18. Slider 1, 19. Left Limiting Block, 20. Cylinder 1, 21. Right Limiting Block, 22. Arc-shaped Limiting Groove 1, 23. Arc-shaped Limiting Groove 2, 24. Oil Chamber, 25. Injection Hole, 26. Flow Hole 1, 27. Flow Hole 2, 28. Clearance Notch 1, 29. Clearance Notch 2, 30. Slider 2, 31. Left Clamping Block, 32. 33. Right clamping block, 34. Arc-shaped clamping groove one, 35. Arc-shaped groove, 36. Arc-shaped clamping groove two, 37. Operating table, 38. Lifting platform, 39. Cutting device, 40. Shaping device, 41. Material discharge port, 42. Arc-shaped limiting protrusion, 43. Cylinder three, 44. Telescopic shaft one, 45. Positioning block, 46. Arc-shaped groove one, 47. Arc-shaped groove two, 48. Moving block, 49. Shaping assembly, 50. Cylinder four, 51. Support plate, 52. Rotary motor one, 53. Inner wall shaping block, 54. Arc surface, 55. Cylinder five, 56. Outer wall shaping block, 57. Cylinder six, 58. Telescopic shaft two, 59. Mounting bracket, 60. Rotary motor two, 61. Connecting rod, 62. 63. Electric cutting wheel; 64. Positioning component; 65. Positioning groove; 66. Protruding plate; 67. Limiting groove one; 68. Limiting groove two; 69. Conveyor belt; 70. Material dropping frame; 71. Lifting arm; 72. Gripper; 73. Slide block; 74. Lead screw stepper motor; 75. Sliding block; 76. Rotary motor; 77. Finger cylinder. Detailed Implementation

[0055] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0056] like Figure 1 In the described embodiment, a processing method for a faucet bend includes the following steps:

[0057] Step 1: The robotic arm 7 grabs the pipe fitting to be processed in the hopper 2 and transfers it to the machine tool 3. The machine tool 3 processes the inlet thread on one end of the pipe fitting.

[0058] Step 2: After processing, the pipe fitting is transported to the bending machine 4 by the robot arm 7, and the other end of the pipe fitting is bent.

[0059] Step 3: The bent pipe is conveyed by the robot arm 7 to the cutting and shaping machine 5 for cutting and shaping.

[0060] Step four: The robot arm 7 places the pipe on the positioning piece 63, which facilitates the secondary positioning of the bent pipe and the counting of the pipe. Then the pipe is transferred to the second machine tool 6. The second machine tool 6 processes the outlet thread on the other end of the pipe. After the pipe is placed into the second machine tool 6 after secondary positioning, the second machine tool 6 can accurately position the pipe, thereby improving the processing accuracy of the outlet thread.

[0061] Step 5: The robotic arm 7 transfers the processed pipe to the conveyor belt 68, and the pipe falls into the drop box 69 through the conveyor belt 68.

[0062] The robotic arm 7 is used to transport pipe fittings between the hopper 2, machine tool 1 3, bending machine 4, cutting and shaping machine 5, positioning component 63, machine tool 2 6 and conveyor belt 68, and collects them in the drop box 69 via the conveyor belt 68. This realizes the entire production line operation of faucet pipe bending through the robotic arm 7, which can improve work efficiency, reduce safety hazards during operation, and facilitate the quality control of faucet pipe fittings.

[0063] like Figure 1 and Figure 8 As shown, in step one, the specific steps by which the robot arm 7 transfers the pipe fitting into machine tool 3 are as follows:

[0064] Step A: The control system controls the lifting arm 70 to descend, so that the gripper 71 is located inside the hopper 2;

[0065] Step B: The control system controls the finger cylinder 76 to start, so that the finger cylinder 76 can grip the corresponding pipe. After gripping, the lifting arm 70 is controlled to rise.

[0066] Step C: The control system controls the robot arm 7 to move along the gantry to directly above the machine tool 3;

[0067] Step D: The control system controls the lifting arm 70 to descend and send the pipe fitting into the corresponding position inside the machine tool 3 from directly above the machine tool 3. The machine tool 3 positions the pipe fitting and processes the inlet thread.

[0068] like Figure 8 As shown, the control system can adjust the position of the finger cylinder 76 by controlling the lead screw stepper motor 73 and the rotary motor 75. When the lead screw stepper motor 73 is working, it drives the sliding block 74 to move horizontally, thereby causing the finger cylinder 76 and the rotary motor 75 to move synchronously. The rotary motor 75 can drive the finger cylinder 76 to rotate a certain angle.

[0069] like Figure 2 , Figure 3 and Figure 4 As shown, the specific steps of the bending process in step two are as follows:

[0070] Step S1: The left clamping block 31 is located at one end of the left limiting block 19. The robot arm 7 inserts the pipe from the other end of the left limiting block 19 into the arc-shaped limiting groove 23 and the arc-shaped clamping groove 36 respectively.

[0071] In step S2, the control system controls cylinder 20 and cylinder 32 to start simultaneously. Cylinder 20 drives slider 18 to slide, and cylinder 32 drives slider 30 to slide, so that the right limiting block 21 and the right clamping block 33 move synchronously until the surface of the pipe comes into contact with the arc-shaped limiting groove 22 and the arc-shaped clamping groove 34 respectively. At this time, the pipe is positioned under the combined action of the left limiting block 19 and the right limiting block 21, as well as the left clamping block 31 and the right clamping block 33.

[0072] Step S3: The control system controls the robotic arm 7 to detach from the pipe fitting and controls the robotic arm 7 to retract, so as to facilitate the bending operation of the pipe fitting;

[0073] Step S4: The control system starts the oil pump 14 to deliver the oil in the oil tank 11 to the arc-shaped limiting groove 22 and the arc-shaped limiting groove 23 respectively, so as to facilitate spraying on the surface of the pipe fitting.

[0074] In step S5, the control system starts the drive motor 16, which drives the worktable 15 to rotate at a certain angle. At the same time, the left clamping block 31 and the right clamping block 33 rotate synchronously. During the rotation, the end of the pipe that is limited by the left limit block 19 and the right limit block 21 moves relative to the arc-shaped limit groove 22 and the arc-shaped limit groove 23. Since the grease is sprayed on the surface of the pipe, the wear of the pipe surface is reduced during this movement, making the pipe less prone to deformation and helping to ensure the dimensional accuracy of the pipe. The other end of the pipe is positioned by the mutual clamping of the arc-shaped clamping groove 34 and the arc-shaped clamping groove 36 and rotates together. The pipe is bent along the bending direction of the arc-shaped clamping groove 36, which helps to improve the accuracy of the bending radius of the pipe.

[0075] Step S6: After bending is completed, the control system controls the oil pump 14 and drive motor 16 to stop working respectively, and at the same time, controls the robot arm 7 to clamp the pipe.

[0076] In step S7, the control system controls cylinder 20 and cylinder 32 to drive the right limit block 21 and right clamping block 33 to move in opposite directions, so that the pipe is released from the clamping state. Then, the control robot 7 is controlled to transport the pipe to the cutting and shaping machine 5.

[0077] like Figure 2 and Figure 4As shown, in step S4, the oil in the oil drum 11 is sent into the oil chamber 24 of the left limiting block 19 through the delivery pipe 13 under the action of the oil pump 14, and then enters the oil chamber 24 of the right limiting block 21 through the flow hole 27 and the corresponding flow hole 26 in sequence. The oil in the oil chamber 24 is sprayed onto the surface of the pipe through the spray hole 25.

[0078] like Figure 1 , Figure 2 and Figure 3 As shown, in steps S6 and S7, the control system controls the robot arm 7 to move directly above the first clearance notch 28 and the second clearance notch 29, then controls the robot arm 7 to extend and clamp the pipe. When the pipe is released from the clamping state, the robot arm 7 is finally controlled to retract, so that the pipe is released from the bending machine 4 and transferred to the cutting and shaping machine 5.

[0079] like Figure 1 and Figure 5 As shown, the specific operating steps of the cutting and shaping machine 5 are as follows:

[0080] Step A1: The robot arm 7 transports the pipe to the lifting platform 38, so that the bent part of the pipe is located between the arc-shaped limiting protrusion 42 and the positioning block 45.

[0081] In step A2, the control system controls cylinder 3 43 to work, causing positioning block 45 to move toward lifting platform 38 until the bent part of the pipe is limited to the circular space formed by arc groove 1 46 and arc groove 2 47. At this time, positioning block 45 is on lifting platform 38, and the part of the pipe clamped by arc clamping groove 1 34 and arc clamping groove 2 36 is outside the circular space formed by arc groove 1 46 and arc groove 2 47 and is directly above the material drop port 41. Since the part of the pipe clamped by clamping part 17 is deformed, this part is placed outside the circular space formed by arc groove 1 46 and arc groove 2 47, which is convenient for cutting device 39 to cut it off.

[0082] Step A3: The control system controls the lifting platform 38 to rise to the set position. Since the telescopic shaft 44 and the positioning block 45 are slidably connected, the positioning block 45 can rise together with the lifting platform 38, so that the pipe is always in a fixed state, so that the cutting device 39 can cut the clamping part of the pipe. The cutting device 39 cuts off the part of the pipe clamped by the arc-shaped clamping groove 34 and the arc-shaped clamping groove 36 and forms a cut at the end of the pipe. The cut waste falls into the discharge port 41.

[0083] Step A4: After cutting, the cut is shaped using the shaping device 40.

[0084] In step A5, the control system controls the lifting platform 38 to descend, the positioning block 45 descends accordingly, and controls the cylinder 3 43 to work again, so that the positioning block 45 moves in the opposite direction by a certain distance, the robot arm 7 picks up the pipe and transfers it to the positioning part 63.

[0085] like Figure 5 As shown, in step A3, the specific operating steps of the cutting device 39 are as follows:

[0086] Step B1: The control system controls cylinder 6 57 to work, and changes the vertical position of electric cutting wheel 62 through telescopic shaft 2 58, so that it is located at the position where the pipe needs to be cut.

[0087] Step B2: The control system controls the rotating motor 60 and the electric cutting wheel 62 to work. The rotating motor 60 drives the connecting rod 61 to rotate, and the electric cutting wheel 62 cuts the pipe.

[0088] Step B3: After cutting is completed, the electric cutting wheel 62 stops working, and at the same time, the control system controls the rotating motor 60 to work again. The rotating motor 60 drives the connecting rod 61 to rotate in the opposite direction, so that the electric cutting wheel 62 gradually moves away from the material discharge port 41.

[0089] like Figure 5 and Figure 6 As shown, the specific steps of the plastic surgery procedure are as follows:

[0090] Step C1: The control system controls cylinder 4 50 to work, pushing moving block 48 toward the cut end of the pipe fitting until the inner wall shaping block 53 is located inside the cut. At this time, the arc surface 54 of the inner wall shaping block 53 is in contact with the inner wall of the pipe fitting.

[0091] Step C2: The control system controls cylinder 55 to work, and cylinder 55 drives the outer wall shaping block 56 to move until the arc-shaped concave surface of the outer wall shaping block 56 fits against the outer wall of the pipe fitting.

[0092] In step C3, the control system controls the rotating motor 52 to work, and the rotating motor 52 drives the support plate 51 to rotate. At the same time, the inner wall shaping block 53 and the outer wall shaping block 56 rotate synchronously. During the rotation, the inner wall shaping block 53 shapes the inner wall of the pipe through the arc surface 54, and the outer wall shaping block 56 shapes the outer wall of the pipe through the arc-shaped concave surface. This helps to improve the roundness of the pipe and the uniformity of the thickness of the pipe sidewall.

[0093] Step C4: After the shaping is completed, the control system controls cylinder 55 to work again. Cylinder 55 drives the outer wall shaping block 56 to move in the opposite direction, so that it is separated from the outer wall of the pipe fitting. Then the control system controls cylinder 4 to work, so that the moving block 48 moves in the opposite direction, and finally the inner wall shaping block 53 and the outer wall shaping block 56 are separated from the pipe fitting.

[0094] like Figure 1 and Figure 7 As shown, the robot arm 7 places the cut and shaped pipe fitting into the positioning groove 64, so that the cut end of the pipe fitting contacts the protrusion 65. The bent portion of the pipe fitting is confined within the limiting groove 66, and the end of the pipe fitting with the inlet thread is confined within the limiting groove 67. The design of the protrusion 65, the limiting groove 66, and the limiting groove 67 facilitates secondary positioning of the pipe fitting when placed in the positioning groove 64, and enables precise positioning when transported by the robot arm 7 to the machine tool 6. This facilitates precise machining of the outlet thread and also makes it easier to count the pipe fittings.

Claims

1. A processing technology for a faucet bend, characterized in that, Includes the following steps: Step 1: The robotic arm (7) grabs the pipe fitting to be processed in the hopper (2) and transfers it to the machine tool (3). The machine tool (3) processes the inlet thread on one end of the pipe fitting. Step 2: After processing, the pipe fitting is transported to the bending machine (4) by the robot (7) to bend the other end of the pipe fitting. Step 3: The bent pipe fitting is transferred by the robot arm (7) to the cutting and shaping machine (5) for cutting and shaping. Specifically, the bent part of the pipe fitting is placed between the arc-shaped limiting protrusion (42) and the positioning block (45). The arc-shaped limiting protrusion (42) is provided with an arc-shaped groove 2 (47), and the positioning block (45) is provided with an arc-shaped groove 1 (46). The bent part of the pipe fitting is located in the circular space formed by the arc-shaped groove 1 (46) and the arc-shaped groove 2 (47). The clamping part of the pipe fitting is placed in the circular space formed by the arc-shaped groove 1 (46) and the arc-shaped groove 2 (47). Outside the space, the cutting device cuts off the clamping part and forms a cut at the end of the pipe fitting. After the cutting is completed, the cut is shaped by the shaping device. The arc surface (54) of the inner wall shaping block (53) fits against the inner wall of the pipe fitting, and the arc concave surface of the outer wall shaping block (56) fits against the outer wall of the pipe fitting. By rotating the inner wall shaping block (53) and the outer wall shaping block (56) synchronously, the inner wall shaping block (53) shapes the inner wall of the pipe fitting through the arc surface (54), and the outer wall shaping block (56) shapes the outer wall of the pipe fitting through the arc concave surface. Step 4: The robot (7) places the pipe on the positioning piece (63) and then transfers the pipe to the second machine tool (6). The second machine tool (6) processes the outlet thread on the other end of the pipe. Step 5: The robot (7) transfers the processed pipe to the conveyor belt (68) and drops it into the dropping frame (69) through the conveyor belt (68); In step one, the specific steps by which the robot (7) transfers the pipe fitting to machine tool one (3) are as follows: Step A: The control system controls the lifting arm (70) to descend, so that the gripper (71) is located inside the hopper (2); Step B: The control system controls the finger cylinder (76) to start, so that the finger cylinder (76) can clamp the corresponding pipe. After clamping, the lifting arm (70) is controlled to rise. Step C, the control system controls the robot (7) to move along the truss to directly above the machine tool (3); In step D, the control system controls the lifting arm (70) to descend and send the pipe fitting into the corresponding position inside the machine tool (3) from directly above the machine tool (3). The machine tool (3) positions the pipe fitting and processes the inlet thread. The control system adjusts the position of the finger cylinder (76) by controlling the lead screw stepper motor (73) and the rotary motor (75). The rotary motor (75) is set on the sliding block (74). When the lead screw stepper motor (73) is working, it drives the sliding block (74) to move horizontally, thereby making the finger cylinder (76) and the rotary motor (75) move synchronously. The rotary motor (75) can drive the finger cylinder (76) to rotate a certain angle.

Images