An intelligent welding system for the bottom frame of an elevator car

Abstract

The present invention discloses an intelligent welding system for the bottom frame of an elevator car, comprising: a base, horizontally arranged on the ground; a turntable, horizontally rotating and connected to the base; four chucks, all arranged on the turntable, and used for steel beams to be embedded and clamped; a slider is arranged on the back side of the chuck, and a slide groove is arranged on the surface of the turntable, and the slide groove extends from the center position of the turntable to the edge position; a driving mechanism is arranged on the base, and used to control the four chucks to approach or move away from each other; a feeding mechanism is arranged on the base, and used to transport each steel beam into the chuck; a welding machine manipulator is arranged on the base, and used to weld the surrounded steel beams. The present invention has the following advantages and effects: by setting a highly automated welding system, automatic feeding and automatic placement and positioning of the bottom frame of the car are realized, and automatic welding is realized at the same time, reducing the labor intensity of workers and improving welding efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of welding, and in particular to an intelligent welding system for a car bottom frame of an elevator car. Background Art

[0002] The elevator car is a box-shaped space used by the elevator to carry and transport people and materials. The elevator car is generally composed of the main parts such as the car bottom, car wall, car top, car door, etc., and its internal net height should be at least 2m. In the production process of the car bottom, a square frame needs to be welded first, and then the bottom plate is fixed on the frame.

[0003] In the traditional welding process of the car bottom frame, four steel beams are usually laid on the horizontal ground, the beveled surfaces at both ends of the steel beams are aligned, and then the steel beams are welded by manual welding. However, this welding method is time-consuming and labor-intensive, affects production efficiency, and needs to be improved. Summary of the invention

[0004] In view of the deficiencies in the prior art, an object of the present invention is to provide an intelligent welding system for a car bottom frame of an elevator car, which has the effect of improving production efficiency.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: an intelligent welding system for a car bottom frame of an elevator car, comprising:

[0006] A base, horizontally arranged on the ground;

[0007] A turntable, horizontally rotatably connected to the base;

[0008] Four clamps are all arranged on the rotating disk and are used for the steel beam to be embedded and clamp the steel beam;

[0009] A slider is arranged on the back side of the chuck, and a slide groove is arranged on the surface of the turntable, and the slide groove extends from the center position to the edge position of the turntable;

[0010] A driving mechanism is disposed on the base and is used to control the four clamps to move closer to or farther from each other;

[0011] A loading mechanism, disposed on the base and used for transporting each steel beam into the clamping head;

[0012] The welding machine manipulator is arranged on the base and is used for welding the surrounded steel beams.

[0013] In a preferred example, the present invention can be further configured as follows: the chuck includes a base plate and a pair of side plates, the pair of side plates are vertically arranged on both sides of the base plate, a locking rod is vertically slidably connected to the middle position of the base plate, the locking rod is used to insert into the hole in the middle of the steel beam, and a reset spring is arranged between the locking rod and the base to control the upward movement of the locking rod.

[0014] In a preferred example, the present invention can be further configured as follows: a wheel frame is laterally arranged on one side of a pair of side plates close to each other, a roller is rotatably connected to the wheel frame, and a compression spring is arranged between the wheel frame and the side plate.

[0015] In a preferred example, the present invention can be further configured as follows: a magnet is embedded on the bottom plate.

[0016] In a preferred example, the present invention can be further configured as follows: the driving mechanism includes a driving ring, four driving blocks and a return spring, the driving ring surrounds the four sliders, the driving blocks are evenly arranged on the inner wall of the driving ring, the side of the slider facing the driving ring is an inclined surface, the driving block is arranged in a triangular shape, and the hypotenuse matches the inclined surface of the slider, the return spring is embedded in the slide groove, and is used to drive the slider to slide outward.

[0017] In a preferred example, the present invention can be further configured as follows: the feeding mechanism includes a material pipe, a hopper, a push block, a baffle and a cylinder; the material pipe is horizontally arranged, and one end of the material pipe is provided with a discharge port for aligning with the chuck; the hopper is arranged on the material pipe, and a feed port is arranged between the hopper and the material pipe, and the feed port is used for allowing steel beams to fall into the material pipe; the push block is horizontally slidably connected in the material pipe, and is used to push the steel beams in the material pipe out; the baffle is arranged on the inner wall of the upper end of the push block, and is used to block the discharge port; the cylinder is arranged on the material pipe, and is used to control the horizontal sliding of the push block and the baffle.

[0018] In a preferred example, the present invention can be further configured as follows: an inspection port is horizontally provided at a position below the hopper, and a first sealing block and a second sealing block are respectively embedded in a pair of the inspection ports.

[0019] In a preferred example, the present invention can be further configured as follows: an infrared transmitter is provided at the edge of the front side below the hopper, and an infrared receiver is provided at the back side.

[0020] In a preferred example, the present invention can be further configured as follows: a supporting plate is horizontally arranged on the outer wall of the upper end of the first sealing block, and an electric cylinder for controlling the horizontal sliding of the first sealing block is arranged on the hopper, the electric cylinder is connected to the infrared receiver, a sliding block is arranged on the outer wall of the second sealing block, a sliding rail for horizontal sliding of the sliding block is horizontally arranged on the hopper, and a positioning spring for controlling the second sealing block to be embedded in the inspection port is arranged on the sliding rail.

[0021] In summary, the present invention has the following beneficial effects:

[0022] 1. By setting up a highly automated welding system, the car bottom frame can be automatically loaded and placed, and automatic welding can be achieved, which can reduce the labor intensity of workers and improve welding efficiency;

[0023] 2. By setting up a feeding mechanism that can automatically feed materials, the steel beams can be fed one by one, ensuring the continuous and efficient operation of the entire welding system;

[0024] 3. By setting up a feeding mechanism with detection function, it is ensured that each steel beam can be fed in a predetermined direction to ensure stable welding of the car bottom frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of an embodiment;

[0026] Figure 2 is a schematic structural diagram of a turntable in an embodiment;

[0027] Figure 3 is a schematic structural diagram of a chuck and a driving mechanism of an embodiment;

[0028] Figure 4 It is a structural schematic diagram of a feeding mechanism of an embodiment.

[0029] : 1. base; 2. turntable; 21. slide; 3. chuck; 31. slider; 32. bottom plate; 33. side plate; 34. magnet; 35. lock rod; 36. return spring; 37. wheel frame; 38. roller; 39. compression spring; 4. driving mechanism; 41. driving ring; 42. driving block; 43. return spring; 5. feeding mechanism; 51. material pipe; 52. hopper; 53. push block; 54. baffle; 55. cylinder; 56. discharge port; 57. feed port; 6. welding machine manipulator; 7. inspection port; 71. first sealing block; 72. second sealing block; 73. infrared transmitter; 74. infrared receiver; 75. support plate; 76. electric cylinder; 77. sliding block; 78. slide rail; 79. positioning spring. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0031] like Figure 1 As shown, an intelligent welding system for a car bottom frame of an elevator car includes a base 1, a turntable 2, a chuck 3, a drive mechanism 4, a feeding mechanism 5 and a welding machine manipulator 6.

[0032] like Figure 1 , Figure 2 As shown, the base 1 is horizontally arranged on the ground, the turntable 2 is horizontally rotatably connected to the base 1, and four clamps 3 are all arranged on the turntable 2 and are used for the steel beam to be embedded and clamp the steel beam.

[0033] like Figure 1 , Figure 2 , Figure 3 As shown, a slider 31 is provided on the back side of the chuck 3, and a slide groove 21 is provided on the surface of the turntable 2, and the slide groove 21 extends from the center position to the edge position of the turntable 2. The driving mechanism 4 is arranged on the base 1 and is used to control the four chucks 3 to approach or move away from each other.

[0034] like Figure 1 , Figure 2 , Figure 3 As shown, the feeding mechanism 5 is arranged on the base 1 and is used to transport each steel beam into each clamp 3 one by one, so that the four steel beams are arranged in a square shape. The welding machine manipulator 6 is arranged on the base 1 and is used to weld the surrounded steel beams.

[0035] Therefore, when it is necessary to weld the car bottom frame, first control the turntable 2 to rotate so that any one of the chucks 3 is aligned with the feeding mechanism 5. At this time, the feeding mechanism 5 pushes the steel beam into the chuck 3 aligned with it, until the chuck 3 clamps the steel beam, the turntable 2 rotates 90 degrees, at this time the next chuck 3 is aligned with the feeding mechanism 5, and reciprocates in sequence to push four steel beams into the four chucks 3, at this time the beveled surfaces of the steel beams are aligned with each other.

[0036] Then, the driving mechanism 4 is used to control all the slide blocks 31 to move synchronously, and the clamp 3 is controlled to work synchronously, so that the four steel beams are close to each other and the chamfered surfaces at the ends of the steel beams are fitted to each other. Finally, the welding machine manipulator 6 is used to weld the connection positions of the four steel beams to achieve the welding operation of the car bottom frame.

[0037] After the welded lower frame is removed from the clamp 3, the driving mechanism 4 controls the slider 31 and the clamp 3 to reset, and the feeding mechanism 5 continues to work, thereby realizing the continuous welding operation of the car bottom frame. During the welding process, there is no need to manually place the steel beams. The welding system can realize automatic loading and automatic placement of the steel beams, and realize automatic welding at the same time, reducing the labor intensity of workers and improving welding efficiency.

[0038] like Figure 1 , Figure 2 , Figure 3 As shown, the chuck 3 includes a bottom plate 32 and a pair of side plates 33. The pair of side plates 33 are vertically arranged on both sides of the bottom plate 32. A magnet 34 is embedded on the bottom plate 32. Therefore, when the steel beam is embedded in the chuck 3, the magnet 34 can adsorb and fix the steel beam to prevent the steel beam from jumping and ensure the stability of the steel beam.

[0039] like Figure 1 , Figure 2 , Figure 3 As shown, a locking rod 35 is vertically slidably connected to the middle of the bottom plate 32, and the locking rod 35 is used to be inserted into the hole in the middle of the steel beam and fix the steel beam. A return spring 36 is arranged between the locking rod 35 and the base 1 to control the locking rod 35 to move upward, so as to control the locking rod 35 to automatically fix the steel beam.

[0040] like Figure 1 , Figure 2 , Figure 3 As shown, a wheel frame 37 is laterally arranged on one side of a pair of side plates 33 that are close to each other. The wheel frame 37 is laterally slidably connected to the side plate 33 , a roller 38 is rotatably connected to the wheel frame 37 , and a compression spring 39 is arranged between the wheel frame 37 and the side plate 33 .

[0041] Therefore, when the steel beam is conveyed into the chuck 3, the steel beam is positioned between a pair of side plates 33, and the wheel frame 37 and the roller 38 on the side plates 33 clamp the two sides of the steel beam, ensuring that the steel beam can slide smoothly into the chuck 3. And when the steel beam slides, the steel beam presses the locking rod 35 to move downward until the hole on the steel beam is aligned with the locking rod 35, and the locking rod 35 pops open and plugs into the hole on the steel beam to limit the position of the steel beam, and under the adsorption effect of the magnet 34, the position of the steel beam is accurately fixed, ensuring that when the steel beam is close, the chamfered surface of the steel beam can be accurately fitted, thereby ensuring the accuracy of the welding process.

[0042] At the same time, when the steel beam is embedded in a pair of side plates 33, the rollers 38 on the wheel frame 37 clamp the steel beam. When all the clamps 3 are controlled to approach each other, since the wheel frame 37 is elastic, even if the force applied to the clamp 3 is relatively large, the elasticity of the wheel frame 37 can offset the external force, ensuring that the external force does not act on the steel beam and preventing the steel beam from bending.

[0043] like Figure 1 , Figure 2 , Figure 3As shown, the driving mechanism 4 includes a driving ring 41, four driving blocks 42 and a return spring 43. The driving ring 41 surrounds the four sliders 31, and the driving blocks 42 are evenly arranged on the inner wall of the driving ring 41. The side of the slider 31 facing the driving ring 41 is an inclined surface, and the driving blocks 42 are arranged in a triangular shape, and the inclined side is matched with the inclined surface of the slider 31. The return spring 43 is embedded in the slide groove 21 and is used to drive the slider 31 to slide outward.

[0044] Therefore, when the multiple sliders 31 are controlled to slide synchronously to make the chucks 3 approach each other, the driving ring 41 is controlled to drive the driving block 42 to rotate together. At this time, under the cooperation of the driving block 42 and the inclined surface on the slider 31, the sliders 31 are pressed to move synchronously, so that all the sliders 31 move synchronously and all the chucks 3 are controlled to work synchronously. When all the sliders 31 are controlled to move away from each other, the driving ring 41 moves in the opposite direction. At this time, under the action of the return spring 43, the sliders 31 move away from each other and move away synchronously.

[0045] like Figure 1 , Figure 4 As shown, the feeding mechanism 5 includes a material pipe 51, a hopper 52, a push block 53, a baffle 54 and a cylinder 55. The material pipe 51 is arranged horizontally, and one end thereof is provided with a discharge port 56 for aligning the chuck 3, the hopper 52 is inclined and bent on the material pipe 51, and a feed port 57 is arranged between the hopper 52 and the material pipe 51, and the feed port 57 is used for allowing the steel beam to fall into the material pipe 51.

[0046] like Figure 1 , Figure 4 As shown, the push block 53 is horizontally slidably connected in the material pipe 51 and is used to push out the steel beam in the material pipe 51. The baffle plate 54 is arranged on the inner wall of the upper end of the push block 53 and is used to block the discharge port 56. The cylinder 55 is arranged on the material pipe 51 and is used to control the horizontal sliding of the push block 53 and the baffle plate 54.

[0047] When the steel beams need to be transported into the chuck 3, the steel beams are stacked one by one in the hopper 52, and then the cylinder 55 is used to drive the push block 53 and the baffle 54 to slide horizontally. At this time, the push block 53 pushes the steel beam to move outward, and the baffle 54 blocks the discharge port 56 to prevent other steel beams from falling.

[0048] When the steel beam is pushed into the chuck 3, the cylinder 55 controls the push block 53 and the baffle 54 to move in the opposite direction, until the baffle 54 is separated from the discharge port 56, and the steel beam in the hopper 52 falls. Repeat the above steps to realize the conveying of steel beams one by one and the automatic loading of steel beams.

[0049] like Figure 1 , Figure 4As shown, an inspection port 7 is horizontally provided below the hopper 52, and a first sealing block 71 and a second sealing block 72 are respectively embedded in a pair of inspection ports 7. An infrared transmitter 73 is provided at the edge of the front side below the hopper 52, and an infrared receiver 74 is provided at the back side.

[0050] like Figure 1 , Figure 4 As shown, a supporting plate 75 is horizontally arranged on the outer wall of the upper end of the first sealing block 71, and an electric cylinder 76 for controlling the horizontal sliding of the first sealing block 71 is arranged on the hopper 52. The electric cylinder 76 is connected to the infrared receiver 74 and is used to work after receiving a signal.

[0051] like Figure 1 , Figure 4 As shown, a sliding block 77 is disposed on the outer wall of the second sealing block 72 , a slide rail 78 is horizontally disposed on the hopper 52 for the sliding block 77 to slide horizontally, and a positioning spring 79 is disposed on the slide rail 78 to control the second sealing block 72 to be embedded in the inspection port 7 .

[0052] When stacking the steel beams, the two ends of the steel beams are beveled, and the beveled surfaces need to face downwards to ensure that the steel beams can be welded together after transportation. Therefore, when the steel beams are stacked, when the steel beams move to the lowest position, if the steel beams are stacked correctly, the steel beams block the infrared transmitter 73, and the infrared receiver 74 cannot receive the signal, so the electric cylinder 76 does not work, ensuring that the steel beams can slide downward and be transported in an orderly manner.

[0053] Once the direction of the steel beam is wrong, the steel beam cannot block the infrared transmitter 73. At this time, the infrared receiver 74 receives the signal and transmits the signal to the electric cylinder 76. At this time, the electric cylinder 76 controls the first sealing block 71 to slide horizontally and push out the wrongly stacked steel beam, so that the steel beam presses the second sealing block 72 to slide outward. At the same time, the supporting plate 75 on the first sealing block 71 blocks the upper steel beam to prevent the upper steel beam from falling.

[0054] After the incorrectly stacked steel beam is pushed out, the electric cylinder 76 controls the first sealing block 71 and the supporting plate 75 to reset. At this time, the positioning spring 79 controls the second sealing block 72 to move in the opposite direction and seal the inspection port 7. At this time, the upper steel beam slides down, and the stacking of the steel beam is checked again to ensure the stable transportation and loading of the steel beam.

[0055] The specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, such modifications are protected by the patent law as long as they are within the scope of the claims of the present invention.

Claims

1. An intelligent welding system for an elevator car bottom frame, characterized in that: include: A base (1) is horizontally arranged on the ground; A turntable (2) is horizontally rotatably connected to the base (1); Four clamps (3) are all arranged on the rotating disk (2) and are used for the steel beam to be embedded and clamp the steel beam; A sliding block (31) is arranged on the back side of the chuck (3), and a sliding groove (21) is arranged on the surface of the rotating disk (2), wherein the sliding groove (21) extends from the center position to the edge position of the rotating disk (2); A driving mechanism (4) is arranged on the base (1) and is used to control the four clamps (3) to move closer to or farther from each other; A loading mechanism (5) is arranged on the base (1) and is used to transport each steel beam into the clamping head (3); A welding machine manipulator (6) is arranged on the base (1) and is used to weld the surrounded steel beams; The driving mechanism (4) comprises a driving ring (41), four driving blocks (42) and a return spring (43); the driving ring (41) surrounds the four sliders (31); the driving blocks (42) are evenly arranged on the inner wall of the driving ring (41); the side of the slider (31) facing the driving ring (41) is an inclined surface; the driving block (42) is arranged in a triangular shape, and the inclined side matches the inclined surface of the slider (31); the return spring (43) is embedded in the slide groove (21) and is used to drive the slider (31) to slide outward; The feeding mechanism (5) comprises a material pipe (51), a hopper (52), a push block (53), a baffle (54) and a cylinder (55); the material pipe (51) is arranged horizontally, and one end of the material pipe is provided with a discharge port (56) for aligning with the chuck (3); the hopper (52) is arranged on the material pipe (51); a feed port (57) is arranged between the hopper (52) and the material pipe (51); the feed port (57) is used to When the steel beam falls into the material pipe (51), the push block (53) is horizontally slidably connected to the material pipe (51) and is used to push the steel beam in the material pipe (51). The baffle (54) is arranged on the inner wall of the upper end of the push block (53) and is used to block the discharge port (56). The cylinder (55) is arranged on the material pipe (51) and is used to control the horizontal sliding of the push block (53) and the baffle (54). An inspection port (7) is horizontally provided below the hopper (52), and a first sealing block (71) and a second sealing block (72) are respectively embedded in a pair of the inspection ports (7); An infrared transmitter (73) is arranged at the edge of the front side below the hopper (52), and an infrared receiver (74) is arranged at the back side; A supporting plate (75) is horizontally arranged on the outer wall of the upper end of the first sealing block (71), and an electric cylinder (76) for controlling the horizontal sliding of the first sealing block (71) is arranged on the hopper (52), and the electric cylinder (76) is connected to the infrared receiver (74). A sliding block (77) is arranged on the outer wall of the second sealing block (72), and a slide rail (78) for the horizontal sliding of the sliding block (77) is horizontally arranged on the hopper (52), and a positioning spring (79) for controlling the second sealing block (72) to be embedded in the inspection port (7) is arranged on the slide rail (78).

2. The intelligent welding system for the bottom frame of an elevator car according to claim 1 is characterized in that: The chuck (3) comprises a bottom plate (32) and a pair of side plates (33), wherein the pair of side plates (33) are vertically arranged on both sides of the bottom plate (32), and a locking rod (35) is vertically slidably connected to the middle position of the bottom plate (32), and the locking rod (35) is used to be inserted into the hole in the middle of the steel beam, and a return spring (36) is arranged between the locking rod (35) and the base (1) to control the upward movement of the locking rod (35).

3. The intelligent welding system for the bottom frame of an elevator car according to claim 2, characterized in that: A wheel frame (37) is transversely arranged on one side of a pair of side plates (33) close to each other, a roller (38) is rotatably connected to the wheel frame (37), and a compression spring (39) is arranged between the wheel frame (37) and the side plate (33).

4. The intelligent welding system for the bottom frame of an elevator car according to claim 2, characterized in that: A magnet (34) is embedded on the bottom plate (32).

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