An intelligent welding robot for heat exchanger production

Abstract

The present invention discloses an intelligent welding robot for heat exchanger production, which relates to the field of heat exchanger production welding. The robot comprises a base, two groups of symmetrically arranged welding heads and a replacement component, and the top of the base is fixedly connected with a rotating seat, the rotating seat is fixedly connected with a mechanical arm, the end of the mechanical arm is rotatably connected with a rotating shaft, the rotating shaft is fixedly connected with a rotating block, and the end of the rotating block is fixedly connected with an operating arm. The present invention enables a force storage part to operate through the rotation of the operating arm, and automatically releases the force storage value after reaching a preset value, and simultaneously links with a limiting part. After the force storage value reaches the preset value, the limit of the rotating disk is automatically released, thereby facilitating the rotation of the rotating disk, so that the positions of the two groups of welding heads are exchanged, thereby solving the problem in the prior art that a group of welding heads works at high temperature for a long time and affects their service life.

Description

Technical Field

[0001] The invention relates to the technical field of heat exchanger production welding, and in particular to an intelligent welding robot for heat exchanger production. Background Art

[0002] A heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid. It is also called a heat exchanger. Heat exchangers play an important role in chemical, petroleum, power, food and many other industrial productions. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators and reboilers, etc., and are widely used.

[0003] At present, welding is an indispensable process in the production of various types of heat pipes. The main welding methods in the existing technology are generally manual welding and automatic welding robots. In order to improve production efficiency, the current production process is mostly welded by welding robots. The welding robots in the existing technology are all a group of welding heads, which are driven by the action of the mechanical arm to move the welding head for welding. The welding robot is not tired, so the welding robot is basically in a state of long-term work, which causes the welding head to be in a high-temperature working state for a long time, which will cause it to be seriously damaged. Therefore, intermittent work of the welding head is conducive to improving its service life. To this end, we propose an intelligent welding robot for heat exchanger production. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent welding robot for heat exchanger production to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an intelligent welding robot for heat exchanger production that is convenient for intermittent use of welding heads and does not affect their welding efficiency, comprising a base and two groups of symmetrically arranged welding heads, the base being fixedly connected to an operation screen, and the top of the base being fixedly connected to a rotating seat, a mechanical arm being fixedly connected to the rotating seat, the end of the mechanical arm being rotatably connected to a rotating shaft, a rotating block being fixedly connected to the rotating shaft, and an operating arm being fixedly connected to the end of the rotating block; and also comprising: a replacement component, the replacement component comprising a fixed disk fixedly connected to the operating arm, the outer side surface of the fixed disk being rotatably connected to a rotating disk fixedly connected to the welding head, the rotating disk The axis of the gear is fixedly connected to a connecting shaft rotatably connected to the fixed disk, one end of the connecting shaft extends into the operating arm and is rotatably connected to the operating arm, a limiting member is installed between the fixed disk and the rotating disk, and the end of the connecting shaft is fixedly connected to a first flat gear, the replacement assembly is used to store force when the rotating shaft rotates, and through the action of the stored force, the first flat gear rotates to drive the rotating disk to rotate, thereby realizing the position exchange of the two groups of welding heads; the insulation assembly includes an insulation box sleeved on the outside of the welding head, the insulation assembly is used to insulate the replaced welding head to avoid rapid temperature loss resulting in a long heating time after switching to the working state later, affecting work efficiency.

[0006] Preferably, the replacement assembly includes a sliding plate slidably connected to the operating arm, the sliding plate is fixedly connected to the first rack, the outer side of the first rack is meshed with a one-way rotating gear, and the sliding plate is also connected to a force storage piece for storing force, and the axis of the one-way rotating gear is fixedly connected to a rotating column rotatably connected to the operating arm, the end of the rotating column is fixedly connected to the first transmission wheel, the outer side surface of the first transmission wheel is transmission-connected to the first belt, one end of the first belt is transmission-connected to the second transmission wheel, the axis of the second transmission wheel is fixedly connected to a connecting column extending to the inside of the operating arm, the connecting column is rotationally connected to the operating arm, and the end is connected to a transmission piece connected to the first flat gear.

[0007] Preferably, the transmission member includes a connecting rod fixedly connected to the said device, the outer side surface of the connecting rod is rotatably connected to a fixed seat fixedly connected to the operating arm, the end of the connecting rod away from the first flat gear is fixedly connected to a first bevel gear, and the outer side of the first bevel gear is meshed with a second bevel gear fixedly connected to the connecting column.

[0008] Preferably, the one-way rotating gear includes a connecting disk fixedly connected to the rotating column, and a plurality of groups of circumferentially arranged movable shafts are rotatably connected to the connecting disk, a first torsion spring fixedly connected to the movable shaft is fixedly connected to the connecting disk, and a connecting frame is fixedly connected to the movable shaft, a tooth block is fixedly connected to the connecting frame, multiple groups of tooth blocks are meshed with the first rack, and a limiting column is fixedly connected to the connecting disk on one side of the connecting frame.

[0009] Preferably, the force storage member includes a rotating piece rotatably connected to the rotating shaft, the rotating piece is rotatably connected to the operating arm, and the rotating piece is rotatably connected to the operating arm, and the rotating piece is fixedly connected to the rotating piece, the outer side surface of the third transmission wheel is transmission-connected to the second belt, one end of the second belt is transmission-connected to the third transmission wheel, the axis of the third transmission wheel is connected to a sliding member connected to the sliding plate, the sliding member is used to drive the sliding plate to slide and thus accumulate force, and the rotating piece is also rotatably connected to a ratchet gear fixedly connected to the rotating shaft, the outer side of the ratchet gear is meshed with a pawl, the pawl is fixedly connected to a pin shaft rotatably connected to the rotating piece, and the pin shaft is fixedly connected to a second torsion spring fixedly connected to the rotating piece.

[0010] Preferably, the sliding member includes a second rack fixedly connected to the sliding plate, and a tension member connected to the operating arm is installed on the sliding plate, the outer side of the second rack is meshed with a second spur gear rotatably connected to the operating arm, the axis of the second spur gear is fixedly connected to a transmission shaft fixedly connected to the fourth transmission wheel, and the transmission shaft is rotatably connected to the operating arm.

[0011] Preferably, the tension member comprises a fixed block fixedly connected to the sliding plate, a tension spring is fixedly connected to the fixed block, and one end of the tension spring is fixedly connected to a fixing plate fixedly connected to the operating arm.

[0012] Preferably, the limit member includes a sliding ring slidably connected to the operating arm, four groups of symmetrically arranged limit rods are fixedly connected to the sliding ring, the limit rods are plugged into the fixed disk and the rotating disk, and a limit groove matched with the limit rod is opened between the fixed disk and the rotating disk, and the end of the limit rod is conical, a first spring is fixedly connected to the sliding ring, one end of the first spring is fixedly connected to the fixing ring fixedly connected to the operating arm, and a connecting block is fixedly connected to the sliding ring, a pull rod extending to the inside of the operating arm is fixedly connected to the connecting block, the pull rod is slidably connected to the operating arm, the fixing plate and the fixing block, and the end of the pull rod is fixedly connected to the limiting block.

[0013] Preferably, the insulation component includes a support frame fixedly connected to the operating arm, a sliding column slidably connected to the support frame, a support plate fixedly connected to the sliding column, a second spring fixedly connected to the support frame fixedly connected to the support plate, the sliding column is also fixedly connected to a support rod fixedly connected to the insulation box, and the bottom end of the sliding column is connected to a pushing member for pushing the sliding column upward.

[0014] Preferably, the pushing member includes a first inclined block fixedly connected to the sliding column, the first inclined block is slidably connected to the support frame, and a second inclined block is provided on the oblique edge of the first inclined block, and a pushing rod fixedly connected to the sliding ring is fixedly connected to the second inclined block.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention provides an intelligent welding robot for heat exchanger production. By setting the working parameters of the rotating seat, the mechanical arm and the operating arm on the operating screen, during the welding process, the rotating shaft is rotated by the rotation of the operating arm, so that the force storage member is operated by the rotation of the rotating shaft, and the sliding plate is moved and force is stored by the action of the force storage member. After the force is fully stored, the sliding plate slides to the end position. After the sliding plate slides to the end position, the limit of the rotating disk will be released. At the same time, after the force is fully stored, the mechanical arm will stop operating. At this time, the sliding plate will be reset by the action of the tension spring to drive the sliding plate and the second rack to move in the opposite direction. The unidirectional rotating gear is driven to rotate through the reverse movement of the second rack, thereby causing the rotating column fixedly connected thereto to rotate, and then the first transmission wheel is rotated through the action of the rotating column, and then the second transmission wheel is rotated through the action of the first belt, so that the first flat gear is rotated through the transmission member, thereby causing the connecting shaft to rotate, and then driving the rotating disk to rotate so that the rotation degrees of the two groups of welding heads are exchanged. After the exchange, the limit member automatically limits the rotating disk again, thereby facilitating the welding head to perform welding work stably, thereby solving the problem in the prior art that a group of welding heads work at high temperatures for a long time and affect their service life.

[0017] 2. The present invention provides an intelligent welding robot for heat exchanger production. During the process of replacing two groups of welding heads, the pusher is operated by the action of the sliding ring. Therefore, the operation of the pusher causes the sliding column to drive the support rod to move upward, thereby preventing the insulation box from hindering the replacement of the welding heads. After the replacement is completed, the insulation box automatically covers the outside of the replaced welding heads, thereby facilitating the insulation of the welding heads, preventing the welding heads from losing temperature too quickly and causing low temperatures while waiting for the replacement, thereby preventing the welding heads from heating up for a long time during work and affecting work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the operating arm of the present invention;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the operating arm of the present invention;

[0021] Figure 4 This is a schematic diagram of the replacement assembly structure of the present invention;

[0022] Figure 5 It is a schematic diagram of the transmission structure of the present invention;

[0023] Figure 6 This is a schematic diagram of the one-way rotating gear structure of the present invention;

[0024] Figure 7 It is a schematic diagram of the structure of the power storage member of the present invention;

[0025] Figure 8 It is a schematic diagram of the matching structure of the ratchet gear and the ratchet pawl of the present invention;

[0026] Fig. 9 It is a schematic diagram of the connection structure of the sliding member of the present invention;

[0027] Fig.10 For the present invention Fig. 9 Schematic diagram of the structure of the middle A area;

[0028] Fig.11 It is a schematic diagram of the connection structure between the limiter, the fixed disk and the rotating disk of the present invention;

[0029] Fig.12 This is a schematic diagram of the matching structure of the thermal insulation component and the welding head of the present invention;

[0030] Fig.13 This is a schematic diagram of the structure of area B in the figure of the present invention;

[0031] Fig.14 It is a schematic diagram of the connection structure between the pusher and the sliding ring of the present invention.

[0032] In the figure: 1-base; 2-welding head; 3-operating screen; 4-rotating seat; 5-mechanical arm; 6-rotating shaft; 7-rotating block; 8-operating arm; 9-swapping assembly; 10-fixed disk; 11-rotating disk; 12-connecting shaft; 13-first flat gear; 14-limiting member; 15-insulating assembly; 16-insulating box; 17-sliding plate; 18-first rack; 19-unidirectional rotating gear; 20-power storage member; 21-rotating column; 22-first transmission wheel; 23-first belt; 24-second transmission wheel; 25-connecting column; 26-transmission member; 28-connecting rod; 29-fixed seat; 30-first bevel gear; 31-second bevel gear; 32-connecting disk; 33-movable shaft; 34-connecting frame; 35-first torsion spring; 36 -tooth block; 37-limiting column; 38-rotating plate; 39-third transmission wheel; 40-second belt; 41-fourth transmission wheel; 42-sliding member; 43-ratchet gear; 44-pawl; 45-pin shaft; 46-second torsion spring; 47-second rack; 48-tension member; 49-second flat gear; 50-transmission shaft; 52-fixing block; 53-tension spring; 54-fixing plate; 55-sliding ring; 56-limiting rod; 57-limiting groove; 58-first spring; 59-fixing ring; 60-connecting block; 61-pull rod; 62-limiting block; 63-support frame; 64-sliding column; 66-support rod; 67-pushing member; 68-support plate; 69-second spring; 70-first inclined block; 71-second inclined block; 72-pushing rod. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-Figure 14The present invention provides a technical solution: an intelligent welding robot for heat exchanger production, comprising a base 1 and two groups of symmetrically arranged welding heads 2, an operating screen 3 is fixedly connected to the base 1, and a rotating seat 4 is fixedly connected to the top of the base 1, a mechanical arm 5 is fixedly connected to the rotating seat 4, an end of the mechanical arm 5 is rotatably connected to a rotating shaft 6, a rotating block 7 is fixedly connected to the rotating shaft 6, and an operating arm 8 is fixedly connected to the end of the rotating block 7; and also includes a replacement component 9, the replacement component 9 includes a fixed disk 10 fixedly connected to the operating arm 8, the outer side surface of the fixed disk 10 is rotatably connected to a rotating disk 11 fixedly connected to the welding head 2, and the axis of the rotating disk 11 is fixedly connected to a rotating shaft 6 and a rotating block 7 is fixedly connected to the end of the rotating block 7. A connecting shaft 12 is connected, one end of the connecting shaft 12 extends into the operating arm 8 and is rotatably connected to the operating arm 8, a limiting member 14 is installed between the fixed disk 10 and the rotating disk 11, and the end of the connecting shaft 12 is fixedly connected to the first flat gear 13, the replacement component 9 is used to store force when the rotating shaft 6 rotates, and through the action of the stored force, the first flat gear 13 rotates to drive the rotating disk 11 to rotate, thereby realizing the position exchange of the two groups of welding heads 2; the insulation component 15, the insulation component 15 includes an insulation box 16 sleeved on the outside of the welding head 2, the insulation component 15 is used to insulate the replaced welding head 2 to avoid excessive temperature loss resulting in a long heating time after switching to the working state later, affecting the work efficiency. The exchange assembly 9 includes a sliding plate 17 slidably connected to the operating arm 8, a first rack 18 is fixedly connected to the sliding plate 17, a one-way rotating gear 19 is meshed on the outer side of the first rack 18, and a force storage member 20 for storing force is also connected to the sliding plate 17, and the axis of the one-way rotating gear 19 is fixedly connected to a rotating column 21 rotatably connected to the operating arm 8, the end of the rotating column 21 is fixedly connected to a first transmission wheel 22, the outer side surface of the first transmission wheel 22 is transmission-connected to a first belt 23, one end of the first belt 23 is transmission-connected to a second transmission wheel 24, the axis of the second transmission wheel 24 is fixedly connected to a connecting column 25 extending to the inside of the operating arm 8, the connecting column 25 is rotationally connected to the operating arm 8, and the end is connected to a transmission member 26 connected to the first flat gear 13.

[0035] In this solution, when welding the heat exchanger, the operating data of the rotating seat 4, the mechanical arm 5 and the operating arm 8 are controlled by the operating screen 3, and the heat exchanger is automatically welded by the mutual cooperation of the mechanical arm 5 and the operating arm 8. During the operation, the operating arm 8 will drive the rotating shaft 6 to rotate through the rotating block 7, so that the rotation of the rotating shaft 6 causes the force storage member 20 to operate. After the force storage member 20 makes the stored force reach the preset value, the limit member 14 will release the limit on the rotating disk 11 and will release the fully stored force, thereby causing the first rack 18 to move. Therefore, the movement of the first rack 18 drives the one-way rotating gear 19 to rotate, thereby driving the first transmission wheel 22 to rotate, and the second transmission wheel 24 is driven to rotate through the first belt 23, and the connecting column 25 is driven to rotate through the rotation of the second transmission wheel 24, and then the rotating disk 11 is rotated 180 degrees through the action of the transmission member 26, so that the two groups of welding heads 2 are exchanged.

[0036] It is worth noting that: the diameter of the first transmission wheel 22 in this solution is smaller than the diameter of the second transmission wheel 24, so when the first transmission wheel 22 rotates, the second transmission wheel 24 slows down and rotates slowly, and the first flat gear 13 drives the connecting shaft 12 to rotate slowly through the action of the transmission member 26, thereby driving the rotating disk 11 to rotate slowly by 180 degrees.

[0037] The transmission member 26 includes a connecting rod 28 fixedly connected to the first flat gear 13, the outer side of the connecting rod 28 is rotatably connected to a fixing seat 29 fixedly connected to the operating arm 8, and the end of the connecting rod 28 away from the first flat gear 13 is fixedly connected to a first bevel gear 30, and the outer side of the first bevel gear 30 is meshed with a second bevel gear 31 fixedly connected to the connecting column 25.

[0038] In this solution, when the connecting column 25 rotates, the second bevel gear 31 will be driven to rotate. Therefore, the rotation of the second bevel gear 31 drives the first bevel gear 30 to rotate, and further drives the first flat gear 13 to rotate.

[0039] The one-way rotating gear 19 includes a connecting disk 32 fixedly connected to the rotating column 21, and a plurality of groups of movable shafts 33 arranged in a circle are rotatably connected to the connecting disk 32. The movable shaft 33 is fixedly connected to a first torsion spring 35 fixedly connected to the connecting disk 32, and a connecting frame 34 is fixedly connected to the movable shaft 33, and a tooth block 36 is fixedly connected to the connecting frame 34. The plurality of groups of tooth blocks 36 are all meshedly connected to the first rack 18, and a limiting column 37 is fixedly connected to the connecting disk 32 on one side of the connecting frame 34.

[0040] In the present solution, during the operation of the force storage member 20, the sliding plate 17 will be driven to move backward, thereby driving the first rack 18 to move backward. During this process, the movement of the first rack 18 will push the tooth block 36 and the connecting frame 34 to rotate along the movable shaft 33, and thus this process will not drive the connecting disk 32 to rotate, and thus the rotating column 21 will not rotate. During the force storage process, the rotating disk 11 will not rotate. After full force is stored, the sliding plate 17 is reset to drive the first rack 18 to move in the opposite direction and reset. At this time, due to the action of the limiting column 37, the first rack 18 cannot push the tooth block 36 and the connecting frame 34 to rotate along the movable shaft 33, and then due to the meshing effect, the tooth block 36 is driven to rotate along the axis of the connecting disk 32, thereby driving the connecting disk 32 to rotate, and then driving the rotating column 21 to rotate. This process will drive the rotating disk 11 to rotate.

[0041] The force storage member 20 includes a rotating piece 38 rotatably connected to the rotating shaft 6, the rotating piece 38 is rotatably connected to the operating arm 8, and the rotating piece 38 is rotatably connected to the operating arm 8, and a third transmission wheel 39 is fixedly connected to the rotating piece 38, the outer side surface of the third transmission wheel 39 is transmission-connected to the second belt 40, one end of the second belt 40 is transmission-connected to the third transmission wheel 39, the axis of the third transmission wheel 39 is connected to a sliding member 42 connected to the sliding plate 17, the sliding member 42 is used to drive the sliding plate 17 to slide and thus store force, and the rotating piece 38 is also rotatably connected to a ratchet gear 43 fixedly connected to the rotating shaft 6, the outer side of the ratchet gear 43 is meshed with a pawl 44, the pawl 44 is fixedly connected to a pin shaft 45 rotatably connected to the rotating piece 38, and the pin shaft 45 is fixedly connected to a second torsion spring 46 fixedly connected to the rotating piece 38. The sliding member 42 includes a second rack 47 fixedly connected to the sliding plate 17, and a tension member 48 connected to the operating arm 8 is installed on the sliding plate 17, and a second flat gear 49 rotatably connected to the operating arm 8 is meshed on the outer side of the second rack 47, and a transmission shaft 50 fixedly connected to the fourth transmission wheel 41 is fixedly connected to the axis of the second flat gear 49, and the transmission shaft 50 is rotatably connected to the operating arm 8. The tension member 48 includes a fixed block 52 fixedly connected to the sliding plate 17, and a tension spring 53 is fixedly connected to the fixed block 52, and one end of the tension spring 53 is fixedly connected to a fixed sheet 54 fixedly connected to the operating arm 8.

[0042] In this solution, the rotation of the rotating shaft 6 drives the ratchet gear 43 to rotate, so the cooperation of the ratchet gear 43 and the pawl 44 makes the rotating plate 38 rotate unidirectionally, thereby driving the third transmission wheel 39 to rotate, and thus driving the fourth transmission wheel 41 to rotate through the second belt 40. During the rotation of the fourth transmission wheel 41, the second rack 47 will be driven to move, and then the sliding plate 17 will be driven to move backward to accumulate force, and the tension spring 53 is in a stretched state during the backward movement of the sliding plate 17, so it is convenient to release the tension through the action of the tension spring 53 after full force is accumulated.

[0043] In this solution, the one-way rotation of the ratchet gear 43 and the pawl 44 is coordinated to reduce the number of times the second flat gear 49 is driven to rotate, so that the power storage time is prolonged, and the welding head 2 will not be replaced in a very short time, that is, the frequent replacement of the welding head 2 will not affect the work efficiency.

[0044] The limiting member 14 includes a sliding ring 55 slidably connected to the operating arm 8, and four groups of symmetrically arranged limiting rods 56 are fixedly connected to the sliding ring 55. The limiting rods 56 are plugged into the fixed disk 10 and the rotating disk 11, and a limiting groove 57 adapted to the limiting rods 56 is opened between the fixed disk 10 and the rotating disk 11, and the end of the limiting rod 56 is conical, and a first spring 58 is fixedly connected to the sliding ring 55, one end of the first spring 58 is fixedly connected to a fixing ring 59 fixedly connected to the operating arm 8, and a connecting block 60 is fixedly connected to the sliding ring 55, and a pull rod 61 extending to the inside of the operating arm 8 is fixedly connected to the connecting block 60, and the pull rod 61 is slidably connected to the operating arm 8, the fixing plate 54 and the fixing block 52, and the end of the pull rod 61 is fixedly connected to the limiting block 62.

[0045] In this solution, during the limiting process, the limiting rod 56 is inserted into the limiting groove 57, thereby limiting the rotating disk 11. After full force is accumulated, the pull rod 61 is driven to slide through the cooperation between the fixed block 52 and the limiting block 62, thereby driving the sliding ring 55 to move, thereby driving the limiting rod 56 away from the limiting groove 57, thereby releasing the limiting of the rotating disk 11.

[0046] In this solution, during the process of releasing the stored force, the limit block 62 loses the squeezing force of the fixed block 52. At this time, the sliding ring 55 and the limit rod 56 are reset and moved through the action of the first spring 58. However, during the rotation of the rotating disk 11, the limit rod 56 cannot be inserted into the limit groove 57. When the rotating disk 11 rotates 180 degrees, the limit groove 57 corresponds to the limit rod 56. At this time, the limit rod 56 enters the limit groove 57 to limit the rotating disk 11.

[0047] The heat preservation assembly 15 includes a support frame 63 fixedly connected to the operating arm 8, a sliding column 64 is slidably connected to the support frame 63, a support sheet 68 is fixedly connected to the sliding column 64, a second spring 69 fixedly connected to the support frame 63 is fixedly connected to the support sheet 68, a support rod 66 fixedly connected to the heat preservation box 16 is also fixedly connected to the sliding column 64, and a pusher 67 for pushing the sliding column 64 upward is connected to the bottom end of the sliding column 64. The pusher 67 includes a first inclined block 70 fixedly connected to the sliding column 64, the first inclined block 70 is slidably connected to the support frame 63, and a second inclined block 71 is provided on the hypotenuse of the first inclined block 70, and a pusher 72 fixedly connected to the sliding ring 55 is fixedly connected to the second inclined block 71.

[0048] In this scheme, in the initial state, the insulation box 16 is sleeved on the outside of the welding head 2. After full force is stored, the push rod 72 is driven to move by the movement of the sliding ring 55, thereby driving the second inclined block 71 to move, thereby driving the first inclined block 70 to move upward, and then the sliding column 64 moves upward to drive the support rod 66 to move upward, thereby driving the insulation box 16 to move upward, so that the welding head is exposed, thereby not affecting its replacement, and in the process of releasing the stored force, the push rod 72 is reset by the resetting of the sliding ring 55, thereby resetting the second inclined block 71, and the first inclined block 70 is reset by the action of the second spring 69, thereby causing the sliding column 64 to drive the support rod 66 to reset, and then the insulation box 16 is reset to insulate the replaced welding head 2.

[0049] Working principle: When welding the heat exchanger, the operating data of the rotating seat 4, the mechanical arm 5 and the operating arm 8 are controlled by the operating screen 3, and the heat exchanger is automatically welded through the cooperation of the mechanical arm 5 and the operating arm 8. During the operation, the operating arm 8 drives the rotating shaft 6 to rotate through the rotating block 7, and the rotation of the rotating shaft 6 drives the ratchet gear 43 to rotate. Therefore, the cooperation of the ratchet gear 43 and the pawl 44 makes the rotating piece 38 rotate unidirectionally, thereby driving the third transmission wheel 39 to rotate, and driving the fourth transmission wheel 41 to rotate through the second belt 40. During the rotation of the fourth transmission wheel 41, the second flat gear 49 will be driven to rotate through the transmission shaft 50, thereby driving the second rack 47 to move, and then driving the sliding plate 17 to move backward to accumulate force, and during the backward movement of the sliding plate 17, the tension spring 53 is in a stretched state. During the accumulation of force, the fixed block 52 Gradually approaching the limit block 62, after about to reach the preset force storage value, the fixed block 52 contacts the limit block 62, and the force storage sliding plate 17 continues to move at this time, so that the fixed block 52 drives the limit block 62 to move, so the pull rod 61 is pulled to move by the movement of the limit block 62, so the pull rod 61 pulls the sliding ring 55 to move, so that the first spring 58 is compressed, and the limit rod 56 is driven to move by the movement of the sliding ring 55, so as to drive the limit rod 56 away from the limit groove 57, so as to release the limit on the rotating disk 11, and the push rod 72 is driven to move by the movement of the sliding ring 55, so as to drive the second inclined block 71 to move, so as to drive the first inclined block 70 to move upward, and then the sliding column 64 moves upward to drive the support rod 66 to move upward, so as to drive the insulation box 16 to move upward, so that the welding machine head is exposed, so as not to affect its replacement, and the force storage is completed at this time and the force storage is about to be released.

[0050] In the above process, since the movement of the sliding plate 17 will also drive the movement of the first rack 18, the movement of the first rack 18 in this process will push the tooth block 36 and the connecting frame 34 to rotate along the movable shaft 33, and thus this process will not drive the connecting disk 32 to rotate, and thus the rotating column 21 will not rotate, and thus the rotating disk 11 will not rotate during the process of accumulating force.

[0051] After the stored force reaches the preset value, the operating arm 8 and the mechanical arm 5 stop running. At this time, the sliding plate 17 is reset by the action of the tension spring 53, thereby driving the first rack 18 to reset and move. At this time, due to the action of the limiting column 37, the first rack 18 cannot push the tooth block 36 and the connecting frame 34 to rotate along the movable shaft 33, and then at this time, due to the meshing effect, the tooth block 36 is driven to rotate along the axis of the connecting plate 32, thereby driving the connecting plate 32 to rotate, thereby driving the rotating column 21 to rotate, thereby driving the first transmission wheel 22 to rotate, and then driving the second transmission wheel 24 to rotate through the first belt 23, and the rotation of the second transmission wheel 24 drives the connecting column 25 to rotate. When the connecting column 25 rotates, it will drive the second bevel gear 31 to rotate. Therefore, the rotation of the second bevel gear 31 drives the first bevel gear 30 to rotate, thereby driving the connecting rod 28 fixedly connected thereto to rotate, thereby driving the connecting shaft 12 to rotate, thereby driving the rotating disk 11 to rotate 180 degrees. It is worth noting that: the diameter of the first transmission wheel 22 in this scheme is smaller than The diameter of the second transmission wheel 24 is such that the first transmission wheel 22 rotates and slowly drives the second transmission wheel 24 to rotate, thereby ensuring that the rotating disk 11 slowly rotates 180 degrees. At this time, the two sets of welding heads 2 are replaced. In this process, the sliding plate 17 moves and resets, so that the limit block 62 loses the squeezing force of the fixed block 52 on it. At this time, the sliding ring 55 and the limit rod 56 are reset and moved by the action of the first spring 58. However, during the rotation of the rotating disk 11, the limit rod 56 cannot be inserted into the limit rod 56. In the groove 57, when the rotating disk 11 rotates 180 degrees, the limit groove 57 corresponds to the limit rod 56. At this time, the limit rod 56 enters the limit groove 57 to limit the rotating disk 11. Since the limit rod 56 drives the sliding ring 55 to reset after being reset, the push rod 72 is reset and moved, so the second bevel block 71 is reset, and the first bevel block 70 is reset through the action of the second spring 69, so that the sliding column 64 drives the support rod 66 to reset, and then the insulation box 16 is reset to keep the replaced welding head 2 warm.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent welding robot for heat exchanger production, comprising: A base (1) and two groups of symmetrically arranged welding heads (2), wherein an operating screen (3) is fixedly connected to the base (1), and a rotating seat (4) is fixedly connected to the top of the base (1), a mechanical arm (5) is fixedly connected to the rotating seat (4), one end of the mechanical arm (5) is rotatably connected to a rotating shaft (6), a rotating block (7) is fixedly connected to the rotating shaft (6), and one end of the rotating block (7) is fixedly connected to an operating arm (8); It is characterized by further comprising: A replacement component (9), the replacement component (9) comprising a fixed disk (10) fixedly connected to the operating arm (8), the outer side surface of the fixed disk (10) being rotatably connected to a rotating disk (11) fixedly connected to the welding head (2), the axis of the rotating disk (11) being fixedly connected to a connecting shaft (12) rotatably connected to the fixed disk (10), one end of the connecting shaft (12) extending into the operating arm (8) and being rotatably connected to the operating arm (8), a limiting member (14) being installed between the fixed disk (10) and the rotating disk (11), and one end of the connecting shaft (12) close to the operating arm being fixedly connected to a first spur gear (13), the replacement component (9) being used to realize position replacement of two groups of welding heads (2); A heat preservation component (15), the heat preservation component (15) comprising a heat preservation box (16) sleeved on the outside of the welding head (2), the heat preservation component (15) being used to keep the replaced welding head (2) warm; The exchange assembly (9) comprises a sliding plate (17) slidably connected to the operating arm (8), a first rack (18) being fixedly connected to the sliding plate (17), a one-way rotating gear (19) being meshed on the outer side of the first rack (18), a force storage member (20) for storing force being connected to the sliding plate (17), and a rotating column (21) rotatably connected to the operating arm (8) being fixedly connected to the axis of the one-way rotating gear (19), and an end of the rotating column (21) away from the one-way rotating gear 19 being fixedly A first transmission wheel (22) is connected, the outer side surface of the first transmission wheel (22) is transmission-connected to a first belt (23), one end of the first belt (23) is transmission-connected to a second transmission wheel (24), the axis of the second transmission wheel (24) is fixedly connected to a connecting column (25) extending into the interior of the operating arm (8), the connecting column (25) is rotationally connected to the operating arm (8), and one end of the connecting column 25 away from the second transmission wheel 24 is connected to a transmission member (26) connected to the first flat gear (13); The transmission member (26) comprises a connecting rod (28) fixedly connected to the first flat gear (13); an outer side surface of the connecting rod (28) is rotatably connected to a fixing seat (29) fixedly connected to the operating arm (8); an end of the connecting rod (28) away from the first flat gear (13) is fixedly connected to a first bevel gear (30); and the first bevel gear (30) is meshed with a second bevel gear (31) fixedly connected to the connecting column (25).

2. The intelligent welding robot for heat exchanger production according to claim 1, characterized in that: The one-way rotating gear (19) comprises a connecting disk (32) fixedly connected to the rotating column (21); a plurality of groups of movable shafts (33) arranged in a circle are rotatably connected to the connecting disk (32); a first torsion spring (35) fixedly connected to the movable shaft (33) is fixedly connected to the connecting disk (32); a connecting frame (34) is fixedly connected to the movable shaft (33); a tooth block (36) is fixedly connected to the connecting frame (34); a plurality of groups of the tooth blocks (36) are all meshingly connected to the first rack (18); and a limiting column (37) is fixedly connected to one side of the connecting frame (34) on the connecting disk (32).

3. The intelligent welding robot for heat exchanger production according to claim 2, characterized in that: The force storage member (20) comprises a rotating plate (38) rotatably connected to the rotating shaft (6), the rotating plate (38) being rotatably connected to the operating arm (8), the rotating plate (38) being rotatably connected to the operating arm (8), and the rotating plate (38) being rotatably connected to the operating arm (8), and a third transmission wheel (39) being fixedly connected to the rotating plate (38), the outer side surface of the third transmission wheel (39) being transmission-connected to a second belt (40), one end of the second belt (40) being transmission-connected to a fourth transmission wheel (41), and the axis of the fourth transmission wheel (41) being connected to the A sliding member (42) connected to the sliding plate (17), the sliding member (42) is used to drive the sliding plate (17) to slide and thereby store force, and the rotating plate (38) is also rotatably connected to a ratchet gear (43) fixedly connected to the rotating shaft (6), the outer side of the ratchet gear (43) is meshed with a pawl (44), the pawl (44) is fixedly connected to a pin shaft (45) rotatably connected to the rotating plate (38), and the pin shaft (45) is fixedly connected to a second torsion spring (46) fixedly connected to the rotating plate (38).

4. The intelligent welding robot for heat exchanger production according to claim 3 is characterized in that: The sliding member (42) comprises a second rack (47) fixedly connected to the sliding plate (17), and a tension member (48) connected to the operating arm (8) is mounted on the sliding plate (17); a second spur gear (49) rotatably connected to the operating arm (8) is meshed on the outer side of the second rack (47); a transmission shaft (50) fixedly connected to the fourth transmission wheel (41) is fixedly connected to the axis of the second spur gear (49); and the transmission shaft (50) is rotatably connected to the operating arm (8).

5. The intelligent welding robot for heat exchanger production according to claim 4, characterized in that: The tension member (48) comprises a fixed block (52) fixedly connected to the sliding plate (17), a tension spring (53) fixedly connected to the fixed block (52), and an end of the tension spring (53) away from the fixed block 52 is fixedly connected to a fixing plate (54) fixedly connected to the operating arm (8).

6. The intelligent welding robot for heat exchanger production according to claim 5, characterized in that: The limiting member (14) comprises a sliding ring (55) slidably connected to the operating arm (8); four groups of symmetrically arranged limiting rods (56) are fixedly connected to the sliding ring (55); the limiting rods (56) are plug-connected to the fixed disk (10) and the rotating disk (11); and limiting grooves (57) adapted to the limiting rods (56) are provided between the fixed disk (10) and the rotating disk (11); a first spring (58) is fixedly connected to the sliding ring (55); One end of the first spring (58) away from the sliding ring (55) is fixedly connected to a fixing ring (59) fixedly connected to the operating arm (8), and the sliding ring (55) is fixedly connected to a connecting block (60), and the connecting block (60) is fixedly connected to a pull rod (61) extending into the interior of the operating arm (8), the pull rod (61) is slidably connected to the operating arm (8), the fixing plate (54) and the fixing block (52), and the end of the pull rod (61) is fixedly connected to a limiting block (62).

7. The intelligent welding robot for heat exchanger production according to claim 6, characterized in that: The heat preservation component (15) comprises a support frame (63) fixedly connected to the operating arm (8), a sliding column (64) being slidably connected to the support frame (63), a supporting sheet (68) being fixedly connected to the sliding column (64), a second spring (69) fixedly connected to the support frame (63) being fixedly connected to the supporting sheet (68), a supporting rod (66) fixedly connected to the heat preservation box (16) being further fixedly connected to the sliding column (64), and a pushing member (67) for pushing the sliding column (64) upward being connected to the bottom end of the sliding column (64).

8. The intelligent welding robot for heat exchanger production according to claim 7, characterized in that: The pushing member (67) comprises a first inclined block (70) fixedly connected to the sliding column (64), the first inclined block (70) being slidably connected to the support frame (63), and a second inclined block (71) being arranged on the inclined edge of the first inclined block (70), and a pushing rod (72) fixedly connected to the sliding ring (55) being fixedly connected to the second inclined block (71).

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