CN115178933A

CN115178933A - Welding manufacturing tool for heat exchanger

Info

Publication number: CN115178933A
Application number: CN202210976850.XA
Authority: CN
Inventors: 王俊虎
Original assignee: Sinohydro Power Beijing Co ltd
Current assignee: Sinohydro Power Beijing Co ltd
Priority date: 2022-08-15
Filing date: 2022-08-15
Publication date: 2022-10-14

Abstract

The invention belongs to the technical field of pipe welding, and particularly relates to a heat exchanger welding manufacturing tool which comprises a bottom frame, wherein a lifting device is arranged at the left side position of the upper end face of the bottom frame, a primary adjusting device is arranged on the lifting device, a stretching device is arranged on the primary adjusting device, a clamping device is arranged on the stretching device, a secondary adjusting device positioned below the clamping device is arranged on the lifting device, a transmission device is arranged on the secondary adjusting device, and a polishing device is arranged on the transmission device; according to the device, the first-stage adjusting device is used for controlling the second clamping plates at the left end and the right end to move in the opposite direction or in the opposite direction, so that U-shaped pipes with different widths are clamped and limited in the left horizontal direction and the right horizontal direction, the stretching device is used for controlling the clamping jaw in the clamping device to clamp and limit the U-shaped pipes in the front horizontal direction and the back horizontal direction, and finally the transmission device drives the polishing device to polish the welding positions of the U-shaped pipes with different pipe diameters through the second-stage adjusting device.

Description

Welding manufacturing tool for heat exchanger

Technical Field

The invention belongs to the technical field of pipe welding, and particularly relates to a welding and manufacturing tool for a heat exchanger.

Background

Welding, also called fusion welding, is a manufacturing process and technology for joining metals or other thermoplastic materials in a heating, high-temperature or high-pressure manner, and in addition, welding is a local rapid heating and cooling process at the same time, a welding zone cannot freely expand and contract due to the constraint of a peripheral workpiece body, and welding stress and deformation are generated in a weldment after cooling;

the U-shaped pipe is commonly called a trap and has the main function of separating two ends of the pipe by using water stored in the U-shaped pipe to prevent air in an outer pipe from entering an air conditioner;

in the prior art, a welding position is welded at a fixed point at the same time in three different directions for welding a U-shaped pipe, or the welding position is welded according to self experience by an operator holding a welding gun, no matter which method is adopted, a certain welding bead residual height appears in a welding area after welding is finished, the welding bead residual height can concentrate stress of a welding bead, the welding bead is torn due to overlarge stress, and meanwhile, the problem of corrosion is easy to occur, and an enterprise still has no efficient method for solving the problem until now due to the complexity of a U-shaped pipe machining position; the welding positioning of the U-shaped pipe generally only depends on the force of splicing between the pipe fittings as support and limit, but vibration which influences the welding precision and performance generally occurs in the welding process.

Disclosure of Invention

In order to achieve the purpose, the invention adopts the following technical scheme that the heat exchanger welding manufacturing tool comprises a bottom frame, wherein a lifting device is arranged at the left side position of the upper end face of the bottom frame, a primary adjusting device is arranged on the lifting device, a stretching device is arranged on the primary adjusting device, a clamping device is arranged on the stretching device, a positioning device is arranged at the rear end of the clamping device, a secondary adjusting device is arranged below the clamping device on the lifting device, a transmission device is arranged on the secondary adjusting device, and a polishing device is arranged on the transmission device;

the stretching device comprises a U-shaped plate, and the U-shaped plate is arranged on the lifting device;

clamping device includes an arc, no. two arcs, baffle, pillar, clamping jaw, rubber pad, flexible post and chute, U-shaped board horizontal end up end install with an arc of half slot position one-to-one, an arc inboard install rather than with the axle center and with No. two arcs of U-shaped board horizontal segment up end sliding fit installation, an arc inner wall symmetry installs the baffle, installs the pillar on the baffle, no. two arc outer walls rotate through the mount pad install with the clamping jaw of corresponding position department the installation of pillar sliding fit, install the rubber pad on the clamping jaw, no. two arc inner wall sliding fit with an arc is close to the flexible post of extrusion stem one end sliding fit installation has seted up the chute on the flexible post.

Preferably, elevating gear includes slide rail, contraband shaped plate, transmission shaft, driving motor, rolling wheel, bearing board, chain and L shape card strip, the slide rail is installed to chassis up end left side position front and back symmetry, and around Contraband shaped plate is installed jointly to the slide rail upper end, the 21274is installed rotating jointly around the shape board between vertical section opposite face, the chassis up end is installed and is located the front end driving motor of slide rail left side below position department, and driving motor output shaft end installs the rolling wheel, and is preceding back the bearing board is installed to upper and lower symmetry slidable between the slide rail, the rolling wheel with the chain has been twined jointly on the transmission shaft, and chain expansion end and upper end bearing board fixed connection, from top to bottom the L shape card strip is installed to the symmetry around all on the bearing board.

Preferably, stretching device still includes L shaped plate, extrusion pole, reset spring, track groove, half slot, joint board and reference column, below around on the bearing board the bilateral symmetry installs the U-shaped plate between the L shape gib, controls both ends the L shaped plate is all installed to U-shaped plate front end face, the L shaped plate with rotate jointly between the U-shaped plate horizontal segment up end install with chute matched with extrusion pole, the L shaped plate vertical section with between the U-shaped plate front end the cover is equipped with reset spring on the extrusion pole outer wall, U-shaped plate horizontal segment up end seted up with extrusion pole matched with track groove, U-shaped plate horizontal segment up end go to the equidistance from the back seted up with the half slot that the track groove is linked together, the joint board is installed to the extrusion pole rear end face, and the joint board is kept away from the reference column is installed to the one end of half slot

Preferably, one-level adjusting device includes spout, a guide arm, an regulation pole, a cardboard, no. two cardboards and open slot, the spout has been seted up to L shape calorie of strip horizontal segment, the rear end L shape calorie of strip horizontal segment internally mounted has a guide arm, the front end L shape calorie of strip horizontal segment rotates and installs an regulation pole, and an regulation pole outer wall bilateral symmetry has seted up and revolves to opposite thread groove, an regulation pole with both ends outer wall all rotates jointly and installs a cardboard about a guide arm, an regulation pole has the regional bilateral symmetry screw thread install with No. two cardboards of a guide arm clearance fit installation, and No. two cardboard are located both ends about No. one between the cardboard, a cardboard with No. two cardboard all set up the open slot of mutually supporting face to face.

Preferably, positioner includes worker shape seat, strengthening rib, fender position board, guide cylinder, riser, spring post, no. two spring posts, draw-in groove and the groove of stepping down, the below rear end L shape card strip up end bilateral symmetry just installs worker shape seat through the bolt, and the vertical section of worker shape seat is kept away from install the strengthening rib jointly between the terminal surface under a side end face of U-shaped board and its horizontal segment, fender position board is installed to worker shape seat horizontal segment rear end, and fender position board is close to the terminal surface of U-shaped board one side install with reference column matched with guide cylinder, worker shape seat horizontal segment up end left and right sides installs the riser from going to back equidistance, homonymy the upper end of riser adopts alternative and spaced mode to install spring post and No. two spring posts respectively from going to the back, worker shape seat horizontal segment up end seted up with the draw-in groove of joint looks matched with mutually, worker shape seat horizontal segment up end is from going to back equidistance and offers the groove of stepping down that lies in between homonymy and the adjacent riser.

Preferably, second grade adjusting device includes a layer board, no. two layer boards, no. two guide arms, no. two regulation poles, U-shaped support and displacement groove, is located both sides around the below install a layer board between the L shape card strip left side opposite face jointly, both sides around being located the below the L shape card strip right side down the terminal surface install No. two layer boards jointly, no. one layer board internally mounted has No. two guide arms, no. two layer board internal rotation installs No. two regulation poles, and No. two regulation pole outer wall equidistance have been seted up and have been revolved to opposite a plurality of groups thread groove, no. two on adjusting the pole outer wall equidistant threaded mounting with the U-shaped support of No. two guide arm sliding fit installations, and two U-shaped supports are a set of, and the displacement groove has all been seted up to both sides terminal surface around the U-shaped support horizontal segment.

Preferably, transmission includes a movable block, no. two movable blocks, die cavity, half gear, master gear, support, telescopic link, telescopic rack and No. two telescopic racks, and is organized No. one the inside slidable mounting respectively of displacement inslot of U-shaped support opposite face has and corresponding position No. one movable block and No. two movable blocks of terminal surface sliding fit installation under cardboard or No. two cardboards, a movable block with No. two movable blocks opposite faces all rotate and install the die cavity, and the half gear is all installed to the outer wall of die cavity, and No. two movable block top horizontal segments install the master gear with corresponding position half gear engaged with through the pivot, and different groups just are in adjacent position the equal slidable mounting in displacement inslot portion of U-shaped support opposite face has the support, and the telescopic link is installed jointly to support opposite face lower extreme, left side support upper end slidable mounting have with corresponding position No. one telescopic rack of master gear engaged with, right side support upper end slidable mounting have with corresponding position No. two telescopic racks of master gear engaged with.

Preferably, grinding device includes fixed plate, toper platform, the grinding roller and the ball of polishing, the fixed plate is installed to die cavity outer wall lower extreme, and the toper platform is installed through the nut to the fixed plate lower extreme, and the grinding roller is evenly installed along circumference to toper platform outer wall, and the ball of polishing is installed to the lower extreme of grinding roller.

Preferably, a through hole matched with the shaft end of the second telescopic rack is formed in the shaft end of the first telescopic rack, a groove is formed in the left end of the section part of the half gear, and a lock catch is installed at the right end of the section part of the half gear.

Preferably, the left end and the right end of the lower end face of the front vertical section and the right end of the rear vertical section of the underframe are respectively rotatably provided with a self-locking wheel, and the front end and the rear end between the opposite surfaces of the upper bearing plate and the lower bearing plate are respectively provided with a connecting column.

The invention has the following beneficial effects:

1. according to the invention, the clamping jaws are controlled to clamp and limit U-shaped pipes with different pipe diameters in the front and back horizontal directions through the moving distance of the extrusion rod into the chute, and meanwhile, the first clamping plate and the second clamping plate are controlled by the first adjusting rod to clamp and limit the U-shaped pipes with different pipe diameters in the left and right horizontal directions and correspondingly clamp and adjust the U-shaped pipes with different widths, so that the position limitation of the U-shaped pipes with different types is promoted, the welding precision of the U-shaped pipes is improved, the functionality of the device is increased, and the market competitiveness of enterprises is improved.

2. According to the invention, the two half gears which are opposite and vertical are combined into a complete gear through the matching between the groove and the lock catch, and then the grinding roller and the grinding ball are ground to the extra height of the welding channel in the rotating process through the relative movement between the first telescopic rack or the second telescopic rack and the main gear, so that the extra height of the welding channel is reduced, and simultaneously, air holes, burrs and residues at the welding channel are reduced to a certain extent, so that the welding channel is smoother and smoother, the attractiveness is improved, and the occurrence rate of influence on the welding performance caused by the extra height of the welding channel is reduced.

3. According to the invention, the position of the clamping plate between the adjacent vertical plates is limited through the first spring column or the second spring column, so that the interaction stability between the extrusion rod and the chute is improved, the U-shaped pipe at the corresponding position of the clamping jaw is stably clamped, the stability during welding is favorably improved, the welding precision is further improved, the welding quality is ensured, and the enterprise competitiveness is indirectly improved.

Drawings

Fig. 1 is a first perspective view of the overall structure of the present invention.

Fig. 2 is a second perspective view of the general structure of the present invention.

Fig. 3 is a partial structural sectional view of the lifting device and the primary adjusting device of the present invention.

FIG. 4 is a partial sectional view of the primary adjustment device and the stretching device of the present invention.

Fig. 5 is a partial structure schematic diagram of the stretching device and the clamping device of the invention.

Fig. 6 is an enlarged view of a portion of the structure at a in fig. 5 according to the present invention.

FIG. 7 is a partial structural view of the clamping device of the present invention.

FIG. 8 is a partial mechanism schematic view of the two-stage adjustment device of the present invention.

Fig. 9 is a partial structure diagram of a first view angle of the transmission device and the grinding device of the invention.

Fig. 10 is a partial structure diagram of the transmission device and the grinding device at a second viewing angle.

Fig. 11 is a schematic view of the polishing apparatus of the present invention.

FIG. 12 is a schematic view of a ground U-shaped tube according to the present invention.

The reference numbers in the figures: 1. a chassis; 11. a self-locking wheel; 2. a lifting device; 21. a slide rail; 22. contraband shaped plate; 23. a drive shaft; 24. a drive motor; 25. a winding wheel; 26. a bearing plate; 261. connecting columns; 27. a chain; 28. an L-shaped clamping strip; 3. a primary adjustment device; 31. a chute; 32. a first guide rod; 33. a first adjusting rod; 34. a first card board; 35. a second card board; 36. an open slot; 4. a stretching device; 41. a U-shaped plate; 42. an L-shaped plate; 43. an extrusion stem; 44. a return spring; 45. a track groove; 46. a semicircular groove; 47. a clamping and connecting plate; 48. a positioning column; 5. a clamping device; 51. a first arc-shaped plate; 52. a second arc plate; 53. a baffle plate; 54. a support post; 55. a clamping jaw; 56. a rubber pad; 57. a telescopic column; 58. a chute; 6. a positioning device; 61. an I-shaped seat; 62. reinforcing ribs; 63. a stop plate; 64. a guide cylinder; 65. a vertical plate; 66. a first spring post; 67. a second spring post; 68. a card slot; 69. a yielding groove; 7. a secondary regulating device; 71. a first support plate; 72. a second supporting plate; 73. a second guide rod; 74. a second adjusting rod; 75. a U-shaped bracket; 76. a displacement groove; 8. a transmission device; 81. a first movable block; 82. a second movable block; 83. a mold cavity; 84. a half gear; 841. a groove; 842. locking; 85. a main gear; 86. a support; 87. a telescopic rod; 88. a first telescopic rack; 881. a through hole; 89. a second telescopic rack; 9. a polishing device; 91. a fixing plate; 92. a conical table; 93. grinding a roller; 94. and (5) grinding the ball.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It should be noted that the terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Specific implementations of the present invention are described in detail below with reference to specific embodiments.

Referring to fig. 1, 5, 8 and 10, a heat exchanger welding manufacturing tool comprises an underframe 1, wherein a lifting device 2 is arranged at the left side of the upper end face of the underframe 1, a primary adjusting device 3 is arranged on the lifting device 2, a stretching device 4 is arranged on the primary adjusting device 3, a clamping device 5 is arranged on the stretching device 4, a positioning device 6 is arranged at the rear end of the clamping device 5, a secondary adjusting device 7 positioned below the clamping device 5 is arranged on the lifting device 2, a transmission device 8 is arranged on the secondary adjusting device 7, and a polishing device 9 is arranged on the transmission device 8;

referring to fig. 1 and 2, the lifting device 2 comprises a slide rail 21, an extending 21274, a shape plate 22, a transmission shaft 23, a driving motor 24, a winding wheel 25, a support plate 26, a chain 27 and an L-shaped clamping strip 28, the slide rail 21 is symmetrically installed on the front and back of the left side of the upper end face of the underframe 1, the Contraband shape plates 22 and the extending 21274are installed on the upper ends of the front and back slide rails 21, the transmission shaft 23 is installed between the front and back vertical section opposite faces of the shape plate 22 in a rotating mode, the driving motor 24 is installed on the upper end face of the underframe 1 at the left lower position of the front end slide rail 21, the winding wheel 25 is installed at the output shaft end of the driving motor 24, the support plate 26 is installed between the front and back slide rails 21 in an up and down symmetric mode, the chain 27 is wound on the winding wheel 25 and the transmission shaft 23, the movable end of the chain 27 is fixedly connected with the upper end support plate 26, and the L-shaped clamping strip 28 is installed on both the upper and back support plate 26 in a forward and back symmetric mode; both ends are all rotated and are installed auto-lock wheel 11 about the vertical section lower extreme surface around chassis 1, and spliced pole 261 is all installed jointly at both ends around between the opposite face of upper and lower bearing plate 26.

Before the work is started, an operator applies acting force to the v-shaped plate 22 or the sliding rail 21, the underframe 1 drives the whole equipment to move to a specified processing position under the combined action of the sliding rail 21 and the self-locking wheel 11, and the position of the underframe 1 is fixed and limited through an external fixing piece and the self-locking wheel 11 after the underframe reaches the specified position;

during specific work, the winding wheel 25 is controlled to rotate forwards and backwards correspondingly through the driving motor 24, at the moment, the chain 27 drives the upper bearing plate 26 to move up and down under the guiding and supporting effects of the sliding rail 21 under the combined action of the winding wheel 25 and the transmission shaft 23, meanwhile, the lower bearing plate 26 synchronously moves through the connecting column 261, and in the process, the upper and lower L-shaped clamping strips 28 synchronously drive the upper primary adjusting device 3, the stretching device 4, the positioning device 6, the clamping device 5, the secondary adjusting device 7, the transmission device 8 and the polishing device 9 to move along with the corresponding position bearing plate 26;

after the U-shaped pipe is welded, the displacement of the grinding device 9 in the vertical direction is regulated and controlled through the lifting device 2, namely the grinding device 9 rotates under the action of the transmission device 8, corresponding similar feeding actions are carried out in the vertical direction, and further more comprehensive processing treatment is carried out on the weld bead height.

Referring to fig. 1, 3 and 4, the primary adjusting device 3 includes a sliding groove 31, a guide rod 32, a first adjusting rod 33, a first clamping plate 34, a second clamping plate 35 and an opening groove 36, the sliding groove 31 is formed in the horizontal section of the L-shaped clamping strip 28, the guide rod 32 is installed inside the horizontal section of the rear L-shaped clamping strip 28, the first adjusting rod 33 is installed in the horizontal section of the front L-shaped clamping strip 28 in a rotating mode, opposite thread grooves are formed in the left and right sides of the outer wall of the first adjusting rod 33 in a symmetrical mode, the first clamping plate 34 is installed in the left and right sides of the outer walls of the left and right ends of the first adjusting rod 33 and the first guide rod 32 in a rotating mode, the second clamping plate 35 installed in a movable fit mode with the first guide rod 32 is installed in the left and right symmetrical mode through threads in the region of the first adjusting rod 33, the second clamping plate 35 is located between the first clamping plate 34 at the left and right ends, and the opening groove 36 matched with the opposite surface of the first clamping plate 34 and the second clamping plate 35.

When pegging graft or the joint location to the U-shaped pipe, operating personnel adjusts pole 33 soon to through the rotatory one number of control, make about the messenger the joint guide effect of a guide arm 32 and spout 31 No. two cardboard 35 in both ends do the opposite directions or back-to-back motion, thereby adjust the distance between 34 and No. two cardboard 35 of cardboard of the same end, it is spacing to finally cooperate open slot 36 to realize carrying out the centre gripping on the horizontal direction about the U-shaped pipe of different width sizes, and then enlarge the operation scope of this equipment, be favorable to improving enterprise competitiveness.

Referring to fig. 1, 3, 5, 6 and 7, the stretching device 4 includes a U-shaped plate 41, an L-shaped plate 42, an extrusion rod 43, a return spring 44, a rail groove 45, a semicircular groove 46, a clamping plate 47 and a positioning column 48, the U-shaped plate 41 is symmetrically installed between the front and rear L-shaped clamping strips 28 on the lower support plate 26, the L-shaped plate 42 is installed on the front end face of the U-shaped plate 41 at the left and right ends, the extrusion rod 43 matched with the inclined groove 58 is installed between the L-shaped plate 42 and the horizontal section upper end face of the U-shaped plate 41 in a co-rotating manner, the return spring 44 is sleeved on the outer wall of the extrusion rod 43 between the vertical section of the L-shaped plate 42 and the front end of the U-shaped plate 41, the rail groove 45 matched with the extrusion rod 43 is opened on the upper end face of the horizontal section of the U-shaped plate 41, the semicircular groove 46 communicated with the rail groove 45 is opened at equal distance from front to back on the upper end face of the horizontal section of the U-shaped plate 41, the clamping plate 47 is installed on the rear end face of the extrusion rod 43, and the clamping plate 47, and the positioning column 48 is installed on the end face of the clamping plate 47 far away from the semicircular groove 46.

The clamping device 5 comprises a first arc-shaped plate 51, a second arc-shaped plate 52, a baffle plate 53, a support column 54, a clamping jaw 55, a rubber pad 56, a telescopic column 57 and a chute 58, wherein the first arc-shaped plate 51 which corresponds to the position of the semicircular groove 46 in a one-to-one manner is installed on the upper end face of the horizontal end of the U-shaped plate 41, the second arc-shaped plate 52 which is coaxial with the first arc-shaped plate 51 and is installed in a sliding fit manner with the upper end face of the horizontal section of the U-shaped plate 41 is installed on the inner side of the first arc-shaped plate 51, the baffle plate 53 is symmetrically installed on the inner wall of the first arc-shaped plate 51, the support column 54 is installed on the baffle plate 53, the clamping jaw 55 which is installed in a sliding fit manner with the support column 54 at the corresponding position is installed on the outer wall of the second arc-shaped plate 52 through an installation seat in a rotating manner, the sawtooth-shaped rubber pad 56 is installed on the clamping jaw 55, the telescopic column 57 which is installed in a sliding fit manner with the end, which is close to the extrusion rod 43, and the chute 58 is installed on the inner wall of the telescopic column 57.

The positioning device 6 comprises an I-shaped seat 61, a reinforcing rib 62, a blocking plate 63, a guide cylinder 64, a vertical plate 65, a first spring column 66, a second spring column 67, a clamping groove 68 and a yielding groove 69, the upper end surfaces of the L-shaped clamping strips 28 at the rear end below are bilaterally symmetrical, the I-shaped seat 61 is installed through bolts, the reinforcing rib 62 is installed between the end surface of one side of the vertical section of the I-shaped seat 61, which is far away from the U-shaped plate 41, and the lower end surface of the horizontal section of the I-shaped seat 61, the blocking plate 63 is installed at the rear end of the horizontal section of the I-shaped seat 61, the guide cylinder 64 matched with the positioning column 48 is installed on the end surface of one side of the blocking plate 63, the vertical plate 65 is installed on the left side and the right side of the upper end surface of the horizontal section of the I-shaped seat 61 at equal intervals from front to back, the first spring column 66 and the second spring column 67 are installed on the upper end surface of the horizontal section of the I-shaped seat 61 at equal intervals from front to back, the upper end surface of the horizontal section of the I-shaped seat 61 is provided with the clamping plate 47, the upper end surface of the horizontal section of the I-shaped seat 61 is provided with the yielding groove 69 at equal intervals, and the same side as the yielding groove 69;

in the specific work of the embodiment, an operator presses the extrusion rod 43, the extrusion rod 43 moves to the rear end along the rail groove 45 after being subjected to an external force, in the process, the clamping plate 47 in the vertical state in the initial state synchronously moves to the rear end to a specified position under the guiding effect of the clamping groove 68 and the positioning support of the positioning column 48 and the guide cylinder 64, then the operator rotates the extrusion rod 43, at the moment, the clamping plate 47 is switched from the vertical state to the horizontal state under the effect of the extrusion rod 43, the clamping plate 47 cannot be limited by the horizontal section of the H-shaped seat 61 in the rotating process through the arrangement of the abdicating groove 69, in the process, the clamping plate 47 firstly contacts and extrudes with the first spring column 66 or the second spring column 67 at the corresponding position until the clamping plate 47 is in the horizontal state and located between the adjacent vertical plates 65, then the first spring column 66 or the second spring column 67 returns to the initial position under the self elastic force, so that the position of the clamping plate 47 is fixed and limited, and in addition, the clamping plate 47 is fixed at different positions through the multiple sets of the vertical plates 65, and the inclined grooves 43 are adapted to the extrusion rod 43 and the limited position after the extrusion rod 58 is extruded;

in the process that the extrusion rod 43 moves towards the rear end, the extrusion degree between the extrusion rod 43 and the chute 58 is continuously deepened, when the telescopic rod 87 is subjected to the acting force of the extrusion rod 43, the telescopic rod 87 moves towards the direction away from the axis of the U-shaped pipe, the second arc-shaped plate 52 drives the clamping jaws 55 to move towards the direction away from the axis of the U-shaped pipe under the telescopic action of the telescopic rod 87, the clamping jaws 55 in the same group move in opposite directions, the clamping jaws 55 in the contraction motion are guided and limited by the support column 54, the angle between the clamping jaws 55 in the same group can be controlled through the extrusion degree between the extrusion rod 43 and the chute 58, and the U-shaped pipes with different pipe diameters can be clamped and positioned;

the friction force between the clamping jaw 55 and the U-shaped pipe is increased through the sawtooth-shaped rubber pad 56, so that the clamping force of the clamping jaw 55 is improved, and the unnecessary damage of the rigid clamping jaw 55 to the surface of the U-shaped pipe is avoided;

when the targeted clamping fixation is performed on the U-shaped pipes with different pipe diameters, an operator reversely rotates the extrusion rod 43, finally, the extrusion rod 43 is restored to the initial position through the reset spring 44, and then the step of pressing the extrusion rod 43 is repeated, so that the clamping effect to be achieved can be achieved, wherein the difference is different from the degree of pressing the extrusion rod 43.

Referring to fig. 3, 4 and 8, the secondary adjusting device 7 includes a first supporting plate 71, a second supporting plate 72, a second guide rod 73, a second adjusting rod 74, a U-shaped bracket 75 and a displacement groove 76, the first supporting plate 71 is installed between the left opposite surfaces of the front and rear L-shaped clamping strips 28 located below, the second supporting plate 72 is installed on the lower end surface of the right side of the front and rear L-shaped clamping strips 28 located below, the second guide rod 73 is installed inside the first supporting plate 71, the second adjusting rod 74 is installed inside the second supporting plate 72 in a rotating manner, a plurality of sets of thread grooves with opposite rotating directions are formed in the outer wall of the second adjusting rod 74 at equal intervals, the U-shaped bracket 75 installed with the second guide rod 73 in a sliding fit manner is installed on the outer wall of the second adjusting rod 74 at equal intervals, the two U-shaped brackets 75 are in a set, and the displacement grooves 76 are formed in the front and rear end surfaces of the horizontal sections of the U-shaped brackets 75.

When the welding position excess height after welding is required to be polished, an operator controls the U-shaped brackets 75 in the same group to move in the opposite direction or the opposite direction under the guiding action of the second guide rod 73 and the supporting action of the first supporting plate 71 and the second supporting plate 72 by rotating the second adjusting rod 74, so that the positions of the transmission device 8 and the polishing device 9 in the front-back direction are correspondingly adjusted, and finally the transmission device 8 and the polishing device 9 move in the left-right direction through the displacement groove 76.

Referring to fig. 9, 10, 11 and 12, the transmission device 8 includes a first movable block 81, a second movable block 82, a cavity 83, a half gear 84, a main gear 85, a support 86, a telescopic rod 87, a first telescopic rack 88 and a second telescopic rack 89, the first movable block 81 and the second movable block 82 which are slidably fitted to the lower end surface of the first clamping plate 34 or the second clamping plate 35 at the corresponding positions are respectively slidably mounted inside the displacement groove 76 on the opposite surface of the U-shaped bracket 75 of the same group, the cavity 83 is rotatably mounted on the opposite surface of the first movable block 81 and the second movable block 82, the half gear 84 is mounted on the outer wall of the cavity 83, the main gear 85 which is engaged with the half gear 84 at the corresponding position is mounted on the horizontal section above the second movable block 82 through a rotating shaft, the support 86 is slidably mounted inside the displacement groove 76 on the opposite surface of the U-shaped bracket 75 at the different group and at the adjacent position is slidably mounted on the support 86, the telescopic rod 87 is mounted on the lower end of the opposite surface of the support 86, the upper end of the support 86 is slidably mounted on the upper end of the first telescopic rack 88 which is engaged with the main gear 85 at the corresponding position, and the telescopic rack 89 is mounted on the upper end of the second telescopic rack which is engaged with the corresponding position.

The grinding device 9 comprises a fixing plate 91, a conical table 92, a grinding roller 93 and a grinding ball 94, the fixing plate 91 is installed at the lower end of the outer wall of the die cavity 83, the conical table 92 is installed at the lower end of the fixing plate 91 through nuts, the grinding roller 93 is evenly installed on the outer wall of the conical table 92 along the circumferential direction, and the grinding ball 94 is installed at the lower end of the grinding roller 93.

A through hole 881 matched with the shaft end of the second telescopic rack 89 is formed at the shaft end of the first telescopic rack 88, a groove 841 is formed at the left end of the section part of the half gear 84, and a lock catch 842 is installed at the right end of the section part of the half gear 84.

In the specific operation of this embodiment, the shaft end of the second telescopic rack 89 in the initial state is located inside the through hole 881, and the telescopic rod 87 located between the opposite supports 86 is in the contracted state (hereinafter, polishing treatment is performed on the welding part of the minimum U-shaped pipe diameter);

when polishing treatment is required to be performed on a welding part, an operator controls the U-shaped bracket 75 in the same group to move in opposite directions through the secondary adjusting device 7 until the grooves 841 and the latches 842 on the two half gears 84 in the same group and oppositely arranged are respectively and correspondingly clamped, then the support 86 is driven to reciprocate leftwards and rightwards in the displacement groove 76, and particularly the support 86 can be driven to move through the electric slider, the first telescopic rack 88 or the second telescopic rack 89 moves relative to the main gear 85 in the process of synchronously following the support 86 to reciprocate, meanwhile, the complete gear consisting of the two half gears 84 synchronously drives the die cavity 83 to rotate under the meshing action of the main gear 85, the die cavity 83 synchronously drives the fixing plate 91 and the upper conical table 92 to rotate in the rotating process, the conical table 92 drives the polishing roller 93 and the polishing ball 94 to polish and process the extra height of the weld way in the circumferential rotating process around the pipe diameter at the lower end of the U-shaped pipe, and the polishing device 9 regulates and controls the displacement in the vertical direction, so that the polishing device 9 can more comprehensively complete polishing of the weld way, thereby avoiding the problem of excessive weld way, and the occurrence of concentrated tearing stress and the problem of tearing and the occurrence of the excessive corrosion and the like.

The working principle of the welding manufacturing tool for the heat exchanger provided by the invention is as follows: the first step is as follows: firstly, the first adjusting rod 33 is rotated to enable the second clamping plates 35 at the left end and the right end to move in the opposite direction or in the opposite direction under the action of the first guide rod 32, and then the extrusion rod 43 is pressed to enable the extrusion rod 43 and the inclined groove 58 to be extruded, so that the stretching device 4 controls the clamping device 5;

the second step is that: then, the position of the extrusion rod 43 is limited by the clamping between the clamping plate 47 and the adjacent vertical plate 65 at different positions and the limiting of the first spring column 66 or the second spring column 67, so that the clamping angle between the clamping jaws 55 in the same group is directly influenced;

the third step: finally, the U-shaped support 75 is controlled by rotating the second adjusting rod 74 to drive the transmission device 8 and the polishing device 9 to move to the designated positions, then the main gear 85 drives the half gear 84 to rotate by utilizing the reciprocating movement of the support 86, and then the die cavity 83 drives the polishing roller 93 and the polishing ball 94 to polish the extra height of the welding track.

The circuits and controls involved in the present invention are prior art and will not be described in detail herein.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a heat exchanger welding preparation frock which characterized in that: the device comprises an underframe (1), wherein a lifting device (2) is arranged at the left side of the upper end face of the underframe (1), a primary adjusting device (3) is arranged on the lifting device (2), a stretching device (4) is arranged on the primary adjusting device (3), a clamping device (5) is arranged on the stretching device (4), a positioning device (6) is arranged at the rear end of the clamping device (5), a secondary adjusting device (7) positioned below the clamping device (5) is arranged on the lifting device (2), a transmission device (8) is arranged on the secondary adjusting device (7), and a polishing device (9) is arranged on the transmission device;

the stretching device (4) comprises a U-shaped plate (41), and the U-shaped plate (41) is arranged on the lifting device (2);

clamping device (5) include No. one arc (51), no. two arcs (52), baffle (53), pillar (54), clamping jaw (55), rubber pad (56), flexible post (57) and chute (58), U-shaped plate (41) horizontal end up end install with arc (51) of half slot (46) position one-to-one, no. one arc (51) inboard install rather than with the axle center and with No. two arcs (52) of U-shaped plate (41) horizontal segment up end sliding fit installation, baffle (53) are installed to arc (51) inner wall symmetry, install pillar (54) on baffle (53), no. two arcs (52) outer wall rotate through the mount pad install with clamping jaw (55) of corresponding position department the installation of pillar (54) sliding fit, install rubber pad (56) on clamping jaw (55), no. two arcs (52) inner wall sliding fit have flexible post (57), have seted up chute (58) on flexible post (57).

2. The heat exchanger welding manufacturing tool according to claim 1, characterized in that: elevating gear (2) are including slide rail (21), 21274, shape board (22), transmission shaft (23), driving motor (24), rolling wheel (25), bearing board (26), chain (27) and L shape card strip (28), slide rail (21) are installed to symmetry around chassis (1) up end left side position, around slide rail (21) upper end is installed Contraband shaped plate (22) jointly, and 21274is installed shape board (22) around, vertical section is rotated jointly between opposite faces around, and is installed transmission shaft (23), chassis (1) up end is installed and is located the front end driving motor (24) of slide rail (21) left side below position department, and driving motor (24) output shaft end installs rolling wheel (25), around rolling wheel (25) up-down symmetry slidable mounting has bearing board (26) between slide rail (21), rolling wheel (25) with chain (27) have been twined jointly on transmission shaft (23), and chain (27) expansion end and upper end bearing board (26) fixed connection, go up-down all install L shape card strip (28) around on bearing board (26).

3. The heat exchanger welding manufacturing tool according to claim 2, characterized in that: stretching device still includes L shaped plate (42), pressure ram (43), reset spring (44), track groove (45), semicircular groove (46), joint board (47) and reference column (48), below around on bearing board (26) bilateral symmetry installs U-shaped plate (41) between L shape gib (28), controls both ends U-shaped plate (41) front end face all installs L shaped plate (42), L shaped plate (42) with rotate jointly between U-shaped plate (41) horizontal segment up end install with chute (58) matched with pressure ram (43), L shaped plate (42) vertical section with between U-shaped plate (41) front end on pressure ram (43) the outer wall on the cover be equipped with reset spring (44), U-shaped plate (41) horizontal segment up end seted up with pressure ram (43) matched with track groove (45), U-shaped plate (41) horizontal segment up end is from going to the equidistance back equidistance the equipartition seted up with semicircular groove (46) that are linked together are seted up with track groove (45), pressure ram (43) rear end face installs joint board (47), and reference column (47) one end is kept away from joint board (48) of reference column (47).

4. The heat exchanger welding manufacturing tool according to claim 3, characterized in that: one-level adjusting device (3) include spout (31), guide arm (32), regulation pole (33), cardboard (34), no. two cardboard (35) and open slot (36), spout (31) have been seted up to L shape card strip (28) horizontal segment, the rear end L shape card strip (28) horizontal segment internally mounted has guide arm (32), the front end L shape card strip (28) horizontal segment rotates and installs regulation pole (33), and regulation pole (33) outer wall bilateral symmetry sets up revolves to opposite thread groove, regulation pole (33) with guide arm (32) are controlled both ends outer wall and are all rotated jointly and install cardboard (34) No. one, regulation pole (33) have the regional bilateral symmetry screw thread install with No. two cardboard (35) of guide arm (32) clearance fit installation, and No. two cardboard (35) are located both ends about No. two cardboard (34), cardboard (34) with No. two cardboard (35) all set up mutually supporting opposite face (36).

5. The heat exchanger welding manufacturing tool according to claim 4, wherein: the positioning device (6) comprises an I-shaped seat (61), reinforcing ribs (62), a blocking plate (63), a guide cylinder (64), a vertical plate (65), a first spring column (66), a second spring column (67), a clamping groove (68) and a yielding groove (69), the upper end faces of the L-shaped clamping strips (28) are bilaterally symmetrical at the rear end below the positioning device, the I-shaped seat (61) is installed through bolts, the reinforcing ribs (62) are installed between one side end face of the U-shaped plate (41) and the lower end face of the horizontal section of the U-shaped plate together at the vertical section of the I-shaped seat (61), a position blocking plate (63) is arranged at the rear end of the horizontal section of the I-shaped seat (61), a guide cylinder (64) matched with the positioning column (48) is arranged on the end surface of the position blocking plate (63) close to one side of the U-shaped plate (41), vertical plates (65) are equidistantly arranged on the left side and the right side of the upper end surface of the horizontal section of the H-shaped seat (61) from front to back, a first spring column (66) and a second spring column (67) are respectively arranged on the upper end of the vertical plate (65) on the same side from front to back in an alternating and spaced mode, the upper end surface of the horizontal section of the I-shaped seat (61) is provided with a clamping groove (68) matched with the clamping plate (47), the upper end face of the horizontal section of the H-shaped seat (61) is provided with a yielding groove (69) which is positioned between the same side and the adjacent vertical plates (65) at the same distance from the front to the back.

6. The heat exchanger welding manufacturing tool according to claim 2, characterized in that: second grade adjusting device (7) include layer board (71), no. two layer boards (72), no. two guide arms (73), no. two regulation poles (74), U-shaped support (75) and displacement groove (76), both sides around being located the below install layer board (71) between L shape card strip (28) left side opposite face jointly, both sides around being located the below the terminal surface installs No. two layer board (72) jointly under L shape card strip (28) right side, no. one layer board (71) internally mounted has No. two guide arms (73), no. two layer board (72) internal rotation installs No. two regulation poles (74), and No. two regulation poles (74) outer wall equidistance seted up revolve to opposite a plurality of groups thread groove, on No. two regulation poles (74) outer wall equidistant threaded mounting with U-shaped support (75) of No. two guide arms (73) sliding fit installation, and two U-shaped support (75) are a set of, and displacement groove (76) have all been seted up to both sides terminal surface around U-shaped support (75) horizontal segment.

7. The heat exchanger welding manufacturing tool according to claim 6, wherein: transmission device (8) include No. one movable block (81), no. two movable blocks (82), die cavity (83), semi-gear (84), master gear (85), support (86), telescopic link (87), telescopic rack (88) and No. two telescopic rack (89), organize together displacement groove (76) inside difference slidable mounting of U-shaped support (75) opposite face has and corresponding position No. one movable block (81) and No. two movable blocks (82) of terminal surface sliding fit installation under cardboard (34) or No. two cardboard (35), no. one movable block (81) with No. two movable blocks (82) opposite face all rotate and install die cavity (83), semi-gear (84) are all installed to the outer wall of die cavity (83), no. two movable block (82) top horizontal segment install through the pivot with corresponding position semi-gear (84) engaged with master gear (85) mutually, different groups just are in adjacent position displacement groove (76) inside equal slidable mounting of the opposite face of U-shaped support (75) has support (86), support (86) lower extreme is installed through the pivot with corresponding position the corresponding gear (85) upper end of the telescopic rack (85) the corresponding gear (85) the telescopic rack (85) the corresponding position the rack (85) the right side of the telescopic rack (86) mesh position install the joint the displacement groove (86) upper end the telescopic rack (85) the corresponding position of No. two telescopic rack (85) the right side (85) the telescopic rack (86) the corresponding position of the right side of the telescopic rack (86) the telescopic rack (85) the sliding fit with the rack (86) side of the corresponding position (89).

8. The heat exchanger welding manufacturing tool according to claim 7, characterized in that: grinding device (9) are including fixed plate (91), toper platform (92), grinding roller (93) and ball (94) of polishing, fixed plate (91) are installed to die cavity (83) outer wall lower extreme, and toper platform (92) are installed through the nut to fixed plate (91) lower extreme, and toper platform (92) outer wall evenly installs grinding roller (93) along circumference, and ball (94) of polishing are installed to the lower extreme of grinding roller (93).

9. The heat exchanger welding manufacturing tool according to claim 7, characterized in that: flexible rack (88) axle head seted up with No. two flexible rack (89) axle head matched with through-hole (881), half gear (84) section position left end seted up fluted (841), hasp (842) are installed to half gear (84) section position right-hand member.

10. The heat exchanger welding manufacturing tool according to claim 7, characterized in that: the self-locking wheel (11) is installed in both ends all rotation about the vertical section lower extreme face around chassis (84), about all install spliced pole (261) jointly at both ends around between the opposite face of bearing board (26).