A welding equipment with adjustable aluminum fin and heat exchange plate positioning interval structure

Abstract

The present application relates to heat exchanger processing technical field, specifically to a kind of welding equipment with adjustable aluminum fin and heat exchange plate positioning pitch structure, including base, the top of the base is equipped with the positioning plate of several symmetrical distribution left and right and the pitch adjusting mechanism for adjusting the positioning pitch of positioning plate, several The positioning plate is jointly installed with the centering positioning mechanism for limiting the front and back of plate bundle body.This application sets the distance between adjacent two positioning plates by limiting assembly one, when the rightmost positioning plate is pushed to move left by servo cylinder one, scissor frame one drives several positioning plates to move left together and makes adjacent two positioning plates close to each other to clamp and fix plate bundle body, limiting assembly one can limit the positioning pitch between adjacent two positioning plates, avoid clamping to damage fin and heat exchange plate in plate bundle body, while using baffle rod and pushing assembly to position the front and back of plate bundle body, facilitate the up and down alignment of plate bundle body and head.

Description

TECHNICAL FIELD

[0001] The present application relates to heat exchanger processing technology field, specifically to a welding equipment with adjustable aluminum fin and heat exchange plate positioning spacing structure. BACKGROUND

[0002] The heat exchanger is a device for transferring part of the heat of hot fluid to cold fluid, and the heat exchanger includes a tube heat exchanger, a plate heat exchanger and a plate-fin heat exchanger. The plate-fin heat exchanger is usually composed of a partition plate (heat exchange plate), a fin, a sealing strip and a flow guide. The fin, the flow guide and the sealing strip are placed between the two adjacent partition plates to form a sandwich, which is called a channel. Such sandwich is stacked according to different ways of fluid and is brazed into a whole to form a plate bundle body. The plate bundle body is the core of the plate-fin heat exchanger. The plate bundle body is welded with a sealing head to form a common plate-fin heat exchanger.

[0003] When the plate bundle body and the sealing head are welded, the plate bundle body needs to be clamped and fixed to prevent the plate bundle body from moving during welding. However, since the plate bundle body contains a large number of fins, and the fins are relatively thin, the fins are often deformed due to excessive clamping force during the fixing of the plate bundle body. Workers need to use pliers to correct the deformed fins, which increases the processing steps of the heat exchanger and affects the processing efficiency of the heat exchanger. In addition, when the plate bundle body and the sealing head are welded, the plate bundle body and the sealing head need to be aligned manually. Since the precision of manual alignment is not high enough, misalignment and false welding may occur, which may affect the sealing between the plate bundle body and the sealing head. SUMMARY

[0004] In order to solve the above problems, the present application provides a welding equipment with adjustable aluminum fin and heat exchange plate positioning spacing structure, which comprises a base, the top of the base is provided with a plurality of positioning plates which are symmetrically distributed left and right, and a spacing adjusting mechanism for adjusting the positioning spacing of the positioning plates, a plurality of the positioning plates are jointly provided with a centering positioning mechanism for limiting the front and back of the plate bundle body, the top of the base is fixedly provided with support frames which are symmetrically distributed left and right, the top of the support frame is provided with a positioning mechanism and a welding mechanism.

[0005] The spacing adjusting mechanism comprises a scissor frame one jointly installed on the front and back of a plurality of positioning plates, the front side of the front scissor frame one is provided with a limiting assembly one for limiting the extension degree thereof, the right side of the support frame is provided with a servo cylinder one, the left side of the extension section of the servo cylinder one is fixedly connected with a push rod, and the bottom end of the push rod is fixedly connected with the rightmost positioning plate.

[0006] The centering positioning mechanism comprises a plurality of stop rods movably arranged on the top of the positioning plates, a limiting assembly two arranged on the leftmost and rightmost positioning plates for positioning the stop rods, a stop block movably arranged on the positioning plates and located at the rear side of the stop rods, a centering moving assembly arranged on the side of the positioning plates away from the plate bundle body and used for driving the stop rods and the stop blocks to move reversely and synchronously, and a pushing assembly arranged on the rear side of the adjacent positioning plates and located at the rear side of the plate bundle body.

[0007] In a possible implementation, the positioning plates are arranged in pairs, the plate bundle body is located between the two positioning plates arranged in pairs, the leftmost positioning plate is fixedly arranged on the top of the base, and a plurality of rollers are rotationally arranged on the top of the base and distributed equidistantly in the front-rear direction.

[0008] In a possible implementation, the scissors frame is composed of a plurality of scissors units arranged in X shape and equidistantly in the left-right direction, the scissors units are arranged between the adjacent positioning plates, the limiting assembly one comprises a sliding frame arranged on the front side of the leftmost scissors unit, the right end of the sliding frame is rotationally connected with the lower right end of the leftmost scissors unit, a plurality of positioning holes one are equidistantly arranged on the front side of the sliding frame in the left-right direction, a scale line is arranged on the top of the sliding frame and used for indicating the distance between the lower left end and the lower right end of the scissors unit, a first hook is rotationally arranged on the front side of the lower left end of the leftmost scissors unit, and a locking unit is arranged on the sliding frame and used for locking the first hook.

[0009] In a possible implementation, the locking unit comprises a sliding block movably arranged in the sliding frame and located at the right side of the first hook, a second hook is movably arranged on the left side of the sliding block in the front-rear direction, a first return spring is fixedly connected between the front side of the second hook and the inner wall of the sliding block, a pull rod is movably arranged on the sliding block in the front-rear direction, a baffle is fixedly connected to the rear end of the pull rod and protrudes into the rear side of the second hook, a wing plate is fixedly connected to the front side of the sliding block, a plurality of positioning columns symmetrically arranged in the up-down direction are fixedly connected to the rear side of the wing plate, and the positioning columns are inserted into the positioning holes one.

[0010] In a possible implementation, the centering moving assembly comprises a gear rotationally arranged on the side of the positioning plate away from the plate bundle body, a rack is engaged with the gear on the upper side and the lower side of the gear, a cover is arranged on the positioning plate and covers the gear and the rack, the rack is movably connected with the cover in the front-rear direction, a movable plate is fixedly connected to the front end of the upper rack, the rear end of the lower rack is fixedly connected with the stop block, the top end of the leftmost movable plate is fixedly connected with the left end of the stop rod, and the top end of the other movable plates is movably connected with the stop rod in the left-right direction.

[0011] In a possible implementation manner, the limiting assembly two comprises a plurality of limiting holes two arranged equidistantly in front and back on the side opposite to the positioning plate on the leftmost side and the rightmost side, an S-shaped buckle is rotatably arranged on the movable plate on the leftmost side and the rightmost side, the top end of the S-shaped buckle is close to the side of the corresponding positioning plate and is inserted and matched with the limiting holes two, and the bottom end of the S-shaped buckle is fixedly connected with the corresponding movable plate.

[0012] In a possible implementation manner, the pushing assembly comprises a first pushing plate movably arranged between the two positioning plates, a guide rod is slidably arranged on the first pushing plate, the front end of the guide rod is fixedly connected with a second pushing plate arranged on the front side of the first pushing plate, the front side of the first pushing plate and the rear side of the second pushing plate are fixedly connected with a reset spring two arranged on the outside of the guide rod, the rear side of the first pushing plate is rotatably connected with a plurality of linkage rods arranged equidistantly on the left and right sides, the rear end of the linkage rod is rotatably connected with the rear end of the corresponding positioning plate, and the left and right sides of the second pushing plate are fixedly connected with side blocking plates movably arranged on the rear side of the blocking block and penetrating through the corresponding positioning plate.

[0013] In a possible implementation manner, the alignment mechanism comprises a horizontal frame movably arranged on the top of the support frame, a plurality of clamping claws are equidistantly arranged on the bottom of the horizontal frame, the clamping claws are arranged above a corresponding pair of positioning plates, the horizontal frame is provided with a second scissor frame for driving the clamping claws to move leftward and rightward to adjust the interval, the structure of the scissor unit in the second scissor frame is same as that of the first scissor frame, the bottom of the right end of the second scissor frame is fixedly connected with a connecting rod, the bottom end of the connecting rod is slidably connected with the top of the pushing rod, the left and right sides of the horizontal frame are fixedly provided with second servo cylinders, and the bottom end of the telescopic section of the second servo cylinder is fixedly connected with the corresponding support frame.

[0014] In a possible implementation manner, the welding mechanism comprises a plurality of third servo cylinders slidably arranged on the top of the horizontal frame and equidistantly arranged on the left and right sides, the third servo cylinders are arranged directly above the corresponding clamping claws, the third servo cylinders are fixedly connected with the second scissor frame, and the telescopic section of the third servo cylinder is fixedly connected with a plurality of welding heads arranged equidistantly on the left and right sides.

[0015] The present application has the following beneficial effects: 1. The distance between the adjacent two positioning plates is set by the limiting assembly one, when the rightmost positioning plate is pushed to move leftward by the first servo cylinder, the first scissor frame drives a plurality of positioning plates to move leftward together and makes the adjacent two positioning plates close to each other to clamp and fix the plate bundle, the limiting assembly one can limit the positioning interval between the adjacent two positioning plates, so that the fins and heat exchange plates in the plate bundle are not clamped and damaged, while the positioning plates are clamped leftward and rightward, the plate bundle is pushed to move forward by the pushing assembly, the plate bundle is positioned front and back by the blocking rod and the pushing assembly, and the plate bundle and the head are conveniently aligned up and down.

[0016] 2、The present application adjusts and limits the front and rear positions of the stop lever through the limiting assembly two, the stop lever will drive the stop block to move synchronously and reversely through the centering moving assembly in the process of moving forward and backward, so that the stop block always keeps symmetrical distribution forward and backward with the stop lever, so that when the pushing and extruding assembly is positioned and clamped forward and backward to the plate bundle body, the stop block can block and limit the forward movement of the pushing and extruding assembly, avoid clamping and damaging the fins and heat exchange plates in the plate bundle body, and improve the welding quality of the heat exchanger.

[0017] 3、The servo cylinder one of the present application not only drives the scissor fork two to move synchronously and stretchably while driving the scissor fork one to move synchronously and stretchably left and right, so that the clamping claw moves left and right with the positioning plate, and the clamping claw always keeps between the two positioning plates, which is beneficial to the alignment of the head with the corresponding plate bundle body, and facilitates the subsequent welding of the head and the plate bundle body. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the first angle of the present application.

[0019] Figure 2 is the second angle of the present application.

[0020] Figure 3 is the three-dimensional structure diagram of the sliding frame of the present application.

[0021] Figure 4 is the top view of the sliding frame of the present application.

[0022] Figure 5 is the partial sectional view of the locking unit of the present application.

[0023] Figure 6 is the three-dimensional structure diagram of the centering positioning mechanism of the present application.

[0024] Figure 7 is the three-dimensional structure diagram of the present application Figure 6 is the enlarged view of A in the present application.

[0025] Figure 8 is the top view of the pushing and extruding assembly of the present application.

[0026] Figure 9 is the three-dimensional structure diagram of the present application.

[0027] Figure 10 is the three-dimensional structure diagram of the welding mechanism of the present application.

[0028] In the figure: 1, base; 11, support frame; 12, roller; 2, positioning plate; 3, spacing adjustment mechanism; 31, scissor frame I; 32, limiting assembly I; 321, sliding frame; 322, positioning hole I; 323, hook I; 324, locking unit; 3241, sliding block; 3242, hook II; 3243, reset spring I; 3244, pull rod; 3245, baffle; 3246, wing plate; 3247, positioning column; 33, servo cylinder I; 34, push rod; 4, centering positioning mechanism; 41, stop rod; 42, limiting assembly II; 421, positioning hole II; 422, S-shaped buckle; 423, compression spring; 43, stop block; 44, centering moving assembly; 441, gear; 442, rack; 443, cover; 444, movable plate; 45, pushing assembly; 451, push plate I; 452, guide rod; 453, push plate II; 454, reset spring II; 455, linkage rod; 5, alignment mechanism; 51, cross frame; 52, clamping claw; 53, scissor frame II; 54, connecting rod; 55, servo cylinder II; 6, welding mechanism; 61, servo cylinder III; 62, welding head. DETAILED DESCRIPTION

[0029] In order to make the above objectives, characteristics and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below. In the following description, a large number of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described below, and those skilled in the art can make similar improvements without departing from the concept of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0030] Please refer to Figure 1 - Figure 10 A welding device with adjustable aluminum fin and heat exchange plate positioning spacing structure, comprising a base 1, the top of the base 1 is provided with a plurality of positioning plates 2 distributed symmetrically left and right and a spacing adjustment mechanism 3 for adjusting the positioning spacing of the positioning plates 2, a plurality of positioning plates 2 are commonly provided with a centering positioning mechanism 4 for limiting the front and back of the plate bundle body, the top of the base 1 is fixedly provided with support frames 11 distributed symmetrically left and right, the top of the support frame 11 is provided with an alignment mechanism 5 and a welding mechanism 6.

[0031] The spacing adjustment mechanism 3 comprises a scissor frame I 31 commonly installed on the front and back of a plurality of positioning plates 2, the front side of the front scissor frame I 31 is provided with a limiting assembly I 32 for limiting the extension degree thereof, the right side of the support frame 11 is provided with a servo cylinder I 33, the left side of the extension section of the servo cylinder I 33 is fixedly connected with a push rod 34, and the bottom end of the push rod 34 is fixedly connected with the rightmost positioning plate 2.

[0032] The centering positioning mechanism 4 comprises a plurality of top common movable mounting stop rods 41 of the positioning plates 2, the leftmost and rightmost positioning plates 2 are provided with limiting assemblies two 42 for positioning the stop rods 41, the positioning plates 2 are slidably provided with stop blocks 43 located at the rear side of the stop rods 41, the positioning plates 2 are provided with centering moving assemblies 44 located at the side away from the corresponding plate bundle body, the rear side of the adjacent positioning plates 2 is provided with pushing assemblies 45 located at the rear side of the plate bundle body.

[0033] In specific use, the limiting assemblies one 32 are adjusted to limit the extension of the scissors frame one 31, so that the minimum distance between the adjacent two positioning plates 2 is equal to the width of the plate bundle body, the stop rods 41 are moved forward and backward according to the length of the plate bundle body, so that the distance between the stop rods 41 and the center of the positioning plates 2 is equal to half of the length of the plate bundle body, in the process of moving forward and backward of the stop rods 41, the stop rods 41 drive the stop blocks 43 to move synchronously and reversely through the centering moving assemblies 44, so that the distance between the stop rods 41 and the stop blocks 43 is equal to the length of the plate bundle body.

[0034] The plate bundle body is placed between the adjacent two positioning plates 2, the push rod 34 is pushed to move left through the servo cylinder one 33, the rightmost positioning plate 2 is pushed to move left through the push rod 34, in the process of moving left of the rightmost positioning plate 2, the scissors frame one 31 is driven to move left, the leftmost positioning plate 2 is fixed, the other positioning plates 2 except the leftmost positioning plate 2 are driven to move left through the scissors frame one 31, so that the adjacent two positioning plates 2 gradually approach to clamp the plate bundle body, the limiting assemblies one 32 limit the contraction of the scissors frame one 31, so as to limit the distance between the adjacent two positioning plates 2, avoiding that the positioning plates 2 clamp and damage the fins and heat exchange plates in the plate bundle body.

[0035] In the process of approaching of the positioning plates 2, the plate bundle body is pushed to move forward through the pushing assembly 45, when the plate bundle body is pushed to contact the stop rods 41, the stop blocks 43 limit the pushing assembly 45 to continue to move forward, avoiding that the pushing assembly 45 and the stop rods 41 clamp the plate bundle body with too large force to cause the fins and heat exchange plates in the plate bundle body to be deformed and damaged, after the plate bundle body is positioned, the alignment mechanism 5 aligns the head with the top of the plate bundle body, finally the head and the plate bundle body are welded through the welding mechanism 6.

[0036] Please refer to Figure 1 and Figure 2 , the positioning plates 2 are arranged in pairs, the plate bundle body is located between the two positioning plates 2 arranged in pairs, the leftmost positioning plate 2 is fixedly installed on the top of the base 1, a plurality of roller wheels 12 are rotationally installed on the top of the base 1 and are equidistantly distributed.

[0037] In specific use, the positioning plates 2 arranged in pairs can clamp the plate bundle body, a certain spacing can be left between adjacent plate bundle bodies, the plate bundle body and the end cover can be welded subsequently, the roller 12 at the top of the base 1 can rotate during the movement of the plate bundle body, the friction between the plate bundle body and the base 1 is reduced, and the plate bundle body is prevented from being abraded.

[0038] Please refer to Figure 1 , and Figure 3 The scissor frame 31 is composed of a plurality of X-shaped scissor units connected in head-to-tail mode and distributed equidistantly left and right, the scissor units are installed between adjacent two positioning plates 2, the limiting assembly 32 includes a sliding frame 321 installed at the front side of the leftmost scissor unit, the right end of the sliding frame 321 is rotationally connected with the lower right end of the leftmost scissor unit, a plurality of positioning holes 322 are equidistantly distributed at the front side of the sliding frame 321, a scale line is arranged at the top of the sliding frame 321 and used for indicating the distance between the lower left end and the lower right end of the scissor unit, a hook 323 is rotationally installed at the front side of the lower left end of the leftmost scissor unit, and a locking unit 324 is installed on the sliding frame 321 and used for locking the hook 323.

[0039] Please refer to Figure 3 - Figure 5 The locking unit 324 includes a sliding block 3241 slidably installed inside the sliding frame 321 and located at the right side of the hook 323, a hook 3242 is slidably installed at the left side of the sliding block 3241, a reset spring 3243 is fixedly connected between the front side of the hook 3242 and the inner wall of the sliding block 3241, a pull rod 3244 is slidably installed on the sliding block 3241, a baffle 3245 is fixedly connected to the rear end of the pull rod 3244 after the pull rod 3244 slides through the rear side of the hook 3242, a wing plate 3246 is fixedly connected to the front side of the sliding block 3241, upper and lower symmetrically distributed positioning columns 3247 are fixedly connected to the rear side of the wing plate 3246, and the positioning columns 3247 are insertedly connected with the positioning holes 322.

[0040] In specific use, before the clamping and positioning of the plate bundle body, the positioning plates 2 are in a state of moving away from each other, at this time, the distance between the left lower end and the right lower end of the scissor unit is the largest, the clamping hook one 323 slides to the left end of the sliding frame 321, and the clamping hook one 323 is moved forward by pulling the pull rod 3244, the pull rod 3244 drives the wing plate 3246 and the positioning column 3247 to move forward, so that the positioning column 3247 is separated from the positioning hole one 322, and the locking of the sliding block 3241 is released, at this time, the left and right sliding sliding blocks 3241 adjust the position of the clamping hook two 3242, and the scale line on the sliding frame 321 indicates the position of the clamping hook two 3242, the clamping hook two 3242 is moved to a value equal to the width of the plate bundle body, at this time, the pull rod 3244 is loosened, the clamping hook two 3242 and the baffle 3245 are pushed back by the elastic force of the reset spring one 3243, and then the pull rod 3244 and the positioning column 3247 are driven to move backward, so that the positioning column 3247 is reinserted into the corresponding positioning hole one 322, and the sliding block 3241 is locked.

[0041] When the scissor frame one 31 drives the positioning plates 2 to move close to each other, the right lower end of the scissor unit drives the sliding frame 321 to move left, so that the clamping hook two 3242 gradually approaches the clamping hook one 323, when the clamping hook two 3242 abuts against the clamping hook one 323, the clamping hook two 3242 is moved forward under the pushing of the clamping hook one 323, at this time, the reset spring one 3243 is compressed and shrunk, until the clamping hook one 323 and the clamping hook two 3242 are clamped together, due to the blockage of the clamping hook one 323, the sliding frame 321 cannot continue to move left, at this time, the distance between the adjacent two positioning plates 2 is just equal to the width of the plate bundle body, avoiding that the force of the positioning plates 2 clamping the plate bundle body is too large, causing the fins and heat exchange plates in the plate bundle body to be deformed and damaged, at the same time, since the clamping hook two 3242 and the clamping hook one 323 are clamped together, the sliding frame 321 cannot drive the clamping hook two 3242 to move right, so that the distance between the adjacent two positioning plates 2 is maintained, avoiding the clamping of the plate bundle body being released.

[0042] Please refer to Figure 1 、 Figure 6 、 Figure 7 and Figure 8 , the center moving assembly 44 comprises a gear 441 rotatably installed on the side of the positioning plate 2 away from the plate bundle body, the upper and lower sides of the gear 441 are engaged with racks 442, the positioning plate 2 is provided with a cover 443 covering the outside of the gear 441 and the rack 442, the rack 442 is slidably connected with the cover 443, the front end of the upper rack 442 is fixedly connected with a movable plate 444, the rear end of the lower rack 442 is fixedly connected with the stop block 43, the top end of the leftmost movable plate 444 is fixedly connected with the left end of the stop rod 41, and the top end of the other movable plate 444 is slidably connected with the stop rod 41.

[0043] In specific use, the front and rear movement of the blocking rod 41 is adapted to the front and rear centering and clamping of the plate bundle body of different lengths. During the front and rear movement of the blocking rod 41, the blocking rod 41 drives the upper rack 442 to move back and forth synchronously, the upper rack 442 drives the gear 441 to rotate, the gear 441 drives the lower rack 442 to move reversely, and the lower rack 442 drives the blocking block 43 to move reversely, so that the blocking block 43 and the blocking rod 41 can move reversely synchronously, the pushing and extruding degree of the pushing and extruding assembly 45 is limited by the blocking block 43, the plate bundle body is prevented from being damaged, and the centering and positioning of the plate bundle body of different lengths is facilitated.

[0044] Please refer to Figure 6 and Figure 7 The limiting assembly two 42 comprises a plurality of limiting holes two 421 which are equidistantly distributed on the front and rear sides of the leftmost and rightmost positioning plates 2 and a scale line below the limiting holes two 421. S-shaped buckles 422 are rotatably installed on the leftmost and rightmost movable plates 444. The top ends of the S-shaped buckles 422 are close to one side of the corresponding positioning plate 2 and are inserted and matched with the limiting holes two 421. The bottom ends of the S-shaped buckles 422 are fixedly connected with the corresponding movable plates 444.

[0045] In specific use, when the blocking rod 41 is to be moved, the bottom end of the S-shaped buckle 422 is pressed first. At this time, the compression spring 423 is compressed to make the top end of the S-shaped buckle 422 rotate away from the corresponding limiting hole two 421 and separate from the limiting hole two 421. When the blocking rod 41 is moved, the movable plate 444 is moved together. The scale line below the limiting hole two 421 can indicate the position of the front and rear movement of the blocking rod 41, so that the blocking rod 41 can be moved to a position suitable for the length of the plate bundle body. After the blocking rod 41 is moved to the position, the pressing on the bottom end of the S-shaped buckle 422 is released. At this time, the elastic force of the compression spring 423 pushes the S-shaped buckle 422 to rotate reversely, so that the top end of the S-shaped buckle 422 is inserted into the corresponding limiting hole two 421 again, the blocking rod 41 is limited, and the front and rear movement of the blocking rod 41 is prevented.

[0046] Please refer to Figure 6 and Figure 8 The pushing and extruding assembly 45 comprises a push plate one 451 movably installed between the pair of two positioning plates 2. A guide rod 452 is slidably installed on the push plate one 451. The front end of the guide rod 452 is fixedly connected with a push plate two 453 located on the front side of the push plate one 451. A reset spring two 454 is fixedly connected between the front side of the push plate one 451 and the rear side of the push plate two 453 and is sleeved on the outside of the guide rod 452. The rear side of the push plate one 451 is rotatably connected with left and right symmetrical linkage rods 455. The rear end of the linkage rod 455 is rotatably connected with the rear end of the corresponding positioning plate 2. The left and right sides of the push plate two 453 are fixedly connected with side plates movably penetrating through the corresponding positioning plate 2 and located on the rear side of the blocking block 43.

[0047] Specific use, the plate bundle body is placed between the stop lever 41 and the push plate two 453, when the two adjacent positioning plates 2 move close to each other, the positioning plate 2 will push the push plate one 451 to move forward through the linkage rod 455, the push plate one 451 pushes the reset spring two 454 and the push plate two 453 to move forward, so that the push plate two 453 pushes the plate bundle body to move forward, when the front end of the plate bundle body contacts the stop lever 41, the side stop plates on both sides of the push plate two 453 just abut against the stop block 43, which limits the push plate two 453 from moving forward any more, avoiding the deformation and damage of the fins and heat exchange plates inside the plate bundle body caused by excessive clamping force, at this time, as the adjacent positioning plates 2 continue to move close to each other, the push plate one 451 will continue to move forward, at this time, the reset spring two 454 will be further compressed, increasing the clamping force on the push plate two 453, preventing the push plate two 453 from loosening, but the push plate two 453 will not continue to move forward, avoiding further extrusion of the plate bundle body.

[0048] Please refer to Figure 1 , Figure 2 and Figure 9 , the alignment mechanism 5 includes a cross frame 51 movably mounted on the top of the support frame 11, a plurality of clamping claws 52 are equidistantly distributed on the bottom of the cross frame 51, the clamping claws 52 are located above a corresponding pair of positioning plates 2, the cross frame 51 is provided with a scissor frame two 53 for driving the clamping claws 52 to move left and right to adjust the distance, the scissor frame two 53 and the scissor unit in the scissor frame one 31 have the same structure, the bottom of the right end of the scissor frame two 53 is fixedly connected with a connecting rod 54, the bottom end of the connecting rod 54 is slidably connected with the top of the push rod 34, the left and right sides of the cross frame 51 are both fixedly provided with a servo cylinder two 55, the bottom end of the extension section of the servo cylinder two 55 is fixedly connected with the corresponding support frame 11.

[0049] Specific use, the head is clamped by the clamping claws 52, when the rightmost positioning plate 2 is pushed to move left by the servo cylinder one 33, the scissor frame one 31 shrinks leftward, at the same time, the push rod 34 drives the scissor frame two 53 to move leftward and shrink the distance between the adjacent two clamping claws 52, since the scissor unit in the scissor frame two 53 and the scissor frame one 31 has the same structure, the clamping claws 52 and the positioning plates 2 can move at the same speed, so that the clamping claws 52 can always be kept above a corresponding pair of positioning plates 2, after the fixation of the plate bundle body is completed, the head is just above the corresponding plate bundle body, then the cross frame 51 is driven by the servo cylinder two 55 to move downward, so that the head is connected with the corresponding plate bundle body, improving the accuracy of the connection between the head and the plate bundle body.

[0050] Please refer to Figure 1 , Figure 2 and Figure 10The welding mechanism 6 comprises a plurality of servo cylinders three 61 symmetrically arranged on the top of the horizontal frame 51, the servo cylinders three 61 are located above the corresponding clamping claws 52, the servo cylinders three 61 are fixedly connected with the scissors frame two 53, and the servo cylinders three 61 are fixedly connected with the welding heads 62 symmetrically arranged on the extension segments of the servo cylinders three 61.

[0051] In specific use, when the head is butted with the plate bundle body, the servo cylinders three 61 drive the welding heads 62 to move from the rear to the front, so that the welding heads 62 weld the connection between the head and the plate bundle body from the left and right sides, and a plurality of plate bundle bodies are welded at the same time, thereby improving the welding efficiency.

[0052] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "arranged", "connected", "mounted", and "connected" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected, or slidingly connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be connected inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0053] The embodiments of the specific implementation are the preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A welding device with an adjustable aluminum fin and heat exchange plate positioning spacing structure, characterized in that: The base (1) is provided with a plurality of positioning plates (2) symmetrically arranged on the top of the base (1), and a spacing adjustment mechanism (3) is arranged on the base (1) for adjusting the spacing of the positioning plates (2); a centering positioning mechanism (4) is arranged on the positioning plates (2) for limiting the front and back of the plate bundle; a support frame (11) is arranged on the top of the base (1); and a positioning mechanism (5) and a welding mechanism (6) are arranged on the top of the support frame (11). The spacing adjustment mechanism (3) comprises a scissor frame (31) arranged on the front and back of the positioning plate (2); a limiting assembly (32) is arranged on the front of the scissor frame (31) for limiting the extension of the scissor frame (31); a servo cylinder (33) is arranged on the right side of the support frame (11); a push rod (34) is arranged on the left side of the extension section of the servo cylinder (33); and the bottom end of the push rod (34) is fixedly connected with the rightmost positioning plate (2). The centering positioning mechanism (4) comprises a stop rod (41) movably arranged on the top of the positioning plate (2); a limiting assembly (42) is arranged on the leftmost and rightmost positioning plates (2) for limiting the stop rod (41); a stop block (43) is arranged on the positioning plate (2) behind the stop rod (41); a centering moving assembly (44) is arranged on the side of the positioning plate (2) away from the plate bundle for driving the stop rod (41) and the stop block (43) to move in the opposite direction; and a pushing assembly (45) is arranged on the rear side of the adjacent positioning plate (2) for pushing the plate bundle. The pushing assembly (45) comprises a push plate (451) movably arranged between the two positioning plates (2); a guide rod (452) is movably arranged on the push plate (451); a push plate (453) is arranged on the front side of the push plate (451); a reset spring (454) is arranged on the guide rod (452); a linkage rod (455) is rotatably arranged on the rear side of the push plate (451); the rear end of the linkage rod (455) is rotatably connected with the rear end of the positioning plate (2); and a side stop plate is movably arranged on the rear side of the stop block (43).

2. The welding apparatus with adjustable positioning distance between the aluminum fins and the heat exchange plates according to claim 1, characterized in that: The positioning plates (2) are arranged in pairs, and the plate bundle is arranged between the two positioning plates (2); the leftmost positioning plate (2) is fixedly arranged on the top of the base (1); and a plurality of rollers (12) are rotatably arranged on the top of the base (1).

3. The welding apparatus with adjustable positioning distance between the aluminum fins and the heat exchange plates according to claim 1, characterized in that: The scissor frame one (31) is composed of a plurality of X-shaped scissor units connected head to tail and equidistantly distributed left and right, the scissor units are installed between two adjacent positioning plates (2), the limiting assembly one (32) comprises a sliding frame (321) installed on the front side of the leftmost scissor unit, the right end of the sliding frame (321) is rotatably connected with the lower right end of the leftmost scissor unit, a plurality of positioning holes one (322) are equidistantly distributed on the front side of the sliding frame (321), the top of the sliding frame (321) is provided with a scale line for indicating the distance between the lower left end and the lower right end of the scissor unit, a hook one (323) is rotatably installed on the front side of the lower left end of the leftmost scissor unit, and a locking unit (324) is installed on the sliding frame (321) for locking the hook one (323).

4. The welding apparatus with adjustable positioning distance between the aluminum fins and the heat exchange plates according to claim 3, characterized in that: The locking unit (324) comprises a sliding block (3241) slidably installed inside the sliding frame (321) and located at the right side of the hook one (323), a hook two (3242) is slidably installed on the left side of the sliding block (3241), a reset spring one (3243) is fixedly connected between the front side of the hook two (3242) and the inner wall of the sliding block (3241), a pull rod (3244) is slidably installed on the sliding block (3241), a baffle (3245) is fixedly connected to the rear end of the pull rod (3244) after the pull rod (3244) slides through the rear side of the hook two (3242), a wing plate (3246) is fixedly connected to the front side of the sliding block (3241) on the pull rod (3244), and a positioning column (3247) symmetrically distributed upward and downward is fixedly connected to the rear side of the wing plate (3246). The positioning column (3247) is inserted and matched with the positioning hole one (322).

5. The welding apparatus with adjustable positioning distance between the aluminum fins and the heat exchange plates according to claim 1, characterized in that: The centering moving assembly (44) comprises a gear (441) rotatably installed on the side, away from the plate bundle body, of the positioning plate (2), a rack (442) is engaged with the upper and lower sides of the gear (441), the positioning plate (2) is provided with a cover (443) covering the outside of the gear (441) and the rack (442), the rack (442) is slidably connected to the front and rear of the cover (443), the front end of the rack (442) is fixedly connected with an activity plate (444) above, the rear end of the rack (442) is fixedly connected with the stop block (43) below, the top end of the leftmost activity plate (444) is fixedly connected with the left end of the stop rod (41), and the top ends of the other activity plates (444) are slidably connected with the stop rod (41).

6. The welding apparatus with adjustable positioning distance between the aluminum fins and the heat exchange plates according to claim 5, characterized in that: The limiting assembly two (42) comprises a plurality of positioning holes two (421) equidistantly distributed and arranged on the side, away from the positioning plate (2), of the leftmost and rightmost positioning plates (2), S-shaped buckles (422) are rotatably installed on the leftmost and rightmost activity plates (444), the top end of the S-shaped buckle (422) is inserted and matched with the positioning hole two (421) on the side close to the corresponding positioning plate (2), and compression springs (423) are fixedly connected between the bottom end of the S-shaped buckle (422) and the corresponding activity plate (444).

7. The welding apparatus with adjustable positioning distance between the aluminum fins and the heat exchange plates according to claim 3, characterized in that: The alignment mechanism (5) comprises a cross frame (51) movably installed on the top of the support frame (11), the bottom of the cross frame (51) is provided with a plurality of clamping claws (52) equidistantly distributed left and right, the clamping claws (52) are located above a corresponding pair of positioning plates (2), a scissor frame two (53) for driving the clamping claws (52) to move left and right to adjust the spacing is installed on the cross frame (51), the scissor frame two (53) and the scissor unit in the scissor frame one (31) are the same in structure, the bottom of the right end of the scissor frame two (53) is fixedly connected with a connecting rod (54), the bottom end of the connecting rod (54) is slidably connected with the top of the push rod (34), the left and right sides of the cross frame (51) are both fixedly installed with servo cylinders two (55), and the bottom end of the extension section of the servo cylinders two (55) is fixedly connected with a corresponding support frame (11).

8. The welding apparatus with adjustable positioning distance between the aluminum fins and the heat exchange plates according to claim 7, characterized in that: The welding mechanism (6) comprises a plurality of servo cylinders three (61) slidably installed on the top of the cross frame (51) and equidistantly distributed left and right, the servo cylinders three (61) are located directly above the corresponding clamping claws (52), the servo cylinders three (61) are fixedly connected with the scissor frame two (53), and the extension sections of the servo cylinders three (61) are fixedly connected with symmetrically distributed welding heads (62).

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