CN224073675U - Welding fixture for tubular heat exchanger - Google Patents

Abstract

This utility model belongs to the field of tubular heat exchanger processing, specifically a welding fixture for tubular heat exchangers. It includes a processing table, a base fixedly connected to one side of the processing table, an mounting block fixedly connected to the top of the base, and a moving block slidably connected to the inner cavity of the mounting block. This utility model uses a first servo motor to drive the rotating ring block and the fixed ring block to rotate during operation. The rotational connection between the first and second limiting rods and the rotating and fixed ring blocks drives the sliding sleeve block to rotate. The rotation of the sliding sleeve block smoothly drives the clamping ring block to rotate and move, thereby achieving the clamping of heat exchanger tubes of different sizes. This allows for convenient and easy adjustment of the clamping size when clamping heat exchanger tubes of different sizes, reducing the tediousness of adjusting the clamping size and increasing the efficiency of clamping and welding heat exchanger tubes.

Description

Welding fixture for tubular heat exchanger

Technical Field

The utility model relates to the field of processing of tubular heat exchangers, in particular to a welding tool of a tubular heat exchanger.

Background

A tubular heat exchanger is a common heat exchange device, the heat exchange wall of which is formed by tubes, the working principle of which is based on heat transfer and fluid flow. It is composed of a group of parallel tubes, one fluid (called working fluid) flows through the tubes, and the other fluid (called heat transfer medium) flows outside the tubes to process the tube type heat exchanger, so that the tube type heat exchanger can be successfully processed and used later due to various processes such as cutting, forming, welding, surface treatment and the like;

in the prior art, when a tubular heat exchanger is processed, a plurality of heat exchange tubes are usually welded together, so that the normal use of the tubular heat exchanger is ensured, and when the tubular heat exchanger is welded, the stability of the heat exchange tubes when the heat exchange tubes are welded is generally ensured by clamping the heat exchange tubes, but when the heat exchange tubes are welded, the conventional clamps for clamping the heat exchange tubes are usually fixed in size, so that when workers need to weld the heat exchange tubes with different sizes, the clamps are required to be disassembled and replaced, even if the sizes of the clamps are adjusted by adopting threaded rods, the sizes of the clamps are still troublesome to adjust when the clamps are used, thereby increasing the complexity when clamping the heat exchange tubes with different sizes and reducing the efficiency when welding the heat exchange tubes.

Disclosure of utility model

In order to make up for the defects of the prior art, the conventional clamp for clamping the heat exchange tube is fixed in general size when the heat exchange tube is welded, so that when workers need to weld the heat exchange tubes with different sizes, the adjustment of the clamp size is troublesome and tedious, the efficiency of welding the heat exchange tubes is reduced, and the like.

The technical scheme includes that the welding fixture for the tubular heat exchanger comprises a machining table, wherein a base is fixedly connected to one side of the machining table, a mounting block is fixedly connected to the top of the base, moving blocks are slidably connected to inner cavities of the mounting block, two moving blocks are arranged, a connecting plate is fixedly connected to the top of each moving block, and a clamping mechanism is arranged on one side of each connecting plate;

The clamping mechanism comprises a fixing rod, one end of the fixing rod is fixedly connected with one side of a connecting plate, the surface of the fixing rod is rotationally connected with a rotating plate, the surface of the rotating plate is slidably connected with a sliding sleeve block, the top and the bottom of the sliding sleeve block are respectively rotationally connected with a first limiting rod and a second limiting rod, the inner cavity of the rotating plate is rotationally connected with a clamping ring block, one side of the connecting plate is rotationally connected with a rotating ring block, one side of the rotating ring block is fixedly connected with a connecting block, one side of the connecting block is fixedly connected with a fixing ring block, the surface of the first limiting rod is rotationally connected with the inner cavity of the fixing ring block, one side of the connecting plate is fixedly connected with a first servo motor, and the output end of the first servo motor penetrates through the connecting plate and is fixedly connected with a driving assembly.

Preferably, the driving assembly comprises a driving gear, one side of the driving gear is fixedly connected with the output end of the first servo motor, one side of the driving gear is rotationally connected with one side of the connecting plate, a driven toothed ring is fixedly connected with the surface of the rotary ring block, and teeth of the driven toothed ring are meshed with teeth of the driving gear.

Preferably, the inner cavity of the installation block is rotationally connected with a bidirectional screw rod, the inner cavity of the moving block is in threaded connection with the surface of the bidirectional screw rod, one side of the installation block is fixedly connected with a second servo motor, and the output end of the second servo motor penetrates through the installation block and is fixedly connected with one end of the bidirectional screw rod.

Preferably, the top sliding connection of base has electric telescopic handle, electric telescopic handle's one end fixedly connected with backup pad, the spacing groove has been seted up to the inner chamber of installation piece, one side fixedly connected with stopper of movable block, the surface and the inner chamber sliding connection of spacing groove of stopper.

Preferably, one side of the connecting plate is fixedly connected with a reinforcing ring block, and an inner cavity of the reinforcing ring block is fixedly connected with the surface of the fixing rod.

Preferably, a hollow groove is formed in one side of the connecting plate, a sliding rod is fixedly connected to one side of the rotary ring block, and the surface of the sliding rod is in sliding connection with the inner cavity of the hollow groove.

Preferably, the inner cavity of the mounting block is fixedly connected with a baffle, the surface of the baffle is in sliding connection with the inner cavity of the moving block, and the surface of the clamping ring block is movably bonded with a rubber sleeve.

The utility model has the advantages that:

According to the utility model, through the operation of the first servo motor, the first servo motor can smoothly drive the rotary ring block and the fixed ring block to rotate during the operation, and the sliding sleeve block is driven to rotate by utilizing the rotary connection between the first limiting rod and the second limiting rod as well as between the rotary ring block and the fixed ring block, meanwhile, the sliding sleeve block can smoothly rotate by driving the clamping ring block through the rotary plate to rotate and move, so that the clamping of heat exchange pipes with different sizes is realized, the problems that the clamping size can be conveniently and conveniently adjusted when the heat exchange pipes with different sizes are required to be clamped, the complexity of adjusting the clamping size is further reduced, the efficiency of clamping and welding the heat exchange pipes is increased, the common size of a clamp used for clamping the heat exchange pipes is fixed when the heat exchange pipes with different sizes are required to be welded by workers are solved, the problems that the clamping size adjustment of the clamp is troublesome and the efficiency when the heat exchange pipes are required to be welded by workers are reduced, and the like are solved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a processing station and a base of the present utility model;

FIG. 2 is a schematic diagram of the structure of the limit groove and the bidirectional screw of the present utility model;

FIG. 3 is a schematic view of a stopper and a first servo motor according to the present utility model;

FIG. 4 is a schematic view of the sliding sleeve block and the driving gear of the present utility model;

FIG. 5 is a schematic view of the structure of the hollow channel and reinforcing ring block of the present utility model;

FIG. 6 is a schematic view of the structure of the slide bar and the rotary ring block of the present utility model;

Fig. 7 is a schematic structural view of a first stop lever and a second stop lever according to the present utility model.

The device comprises a machining table 1, a base 2, a mounting block 3, a moving block 4, a connecting plate 5, a clamping mechanism 6, a 601, a fixed rod 602, a rotating plate 603, a sliding sleeve block 604, a first limiting rod 605, a second limiting rod 606, a clamping ring block 607, a rotating ring block 608, a connecting block 609, a fixed ring block 610, a driving assembly 6101, a driving gear 6102, a driven toothed ring 611, a first servo motor 7, a bidirectional screw rod 8, a second servo motor 9, a limiting groove 10, a limiting block 11, a baffle plate 12, an electric telescopic rod 13, a supporting plate 14, a rubber sleeve 15, a reinforcing ring block 16, a hollow groove 17 and a sliding rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The application will be described in further detail with reference to figures 1-7,

The embodiment of the application discloses a welding tool for a tubular heat exchanger. Referring to fig. 1 and 4, a welding fixture of tubular heat exchanger, including processing platform 1, one side fixedly connected with base 2 of processing platform 1, the top fixedly connected with installation piece 3 of base 2, the inner chamber sliding connection of installation piece 3 has movable block 4, and movable block 4 is provided with two, and the top fixedly connected with connecting plate 5 of movable block 4, one side of connecting plate 5 is provided with fixture 6.

The clamping mechanism 6 comprises a fixing rod 601, one end of the fixing rod 601 is fixedly connected with one side of a connecting plate 5, the surface of the fixing rod 601 is rotationally connected with a rotary plate 602, the surface of the rotary plate 602 is slidably connected with a sliding sleeve block 603, the top and the bottom of the sliding sleeve block 603 are respectively rotationally connected with a first limiting rod 604 and a second limiting rod 605, the inner cavity of the rotary plate 602 is rotationally connected with a clamping ring block 606, one side of the connecting plate 5 is rotationally connected with a rotating ring block 607, one side of the rotating ring block 607 is fixedly connected with a connecting block 608, one side of the connecting block 608 is fixedly connected with a fixing ring block 609, the surface of the first limiting rod 604 is rotationally connected with the inner cavity of the fixing ring block 609, the surface of the second limiting rod 605 is rotationally connected with the inner cavity of the rotating ring block 607, one side of the connecting plate 5 is fixedly connected with a first servo motor 611, and the output end of the first servo motor 611 penetrates through the connecting plate 5 and is fixedly connected with a driving component 610;

the processing platform 1 accessible base 2 is connected installation piece 3, and the movable block 4 that installation piece 3 inside was connected then can utilize connecting plate 5 to connect fixture 6, simultaneously movable block 4 can be in the inside of installation piece 3 to remove, make the position of connecting plate 5 and fixture 6 can be according to the needs, and dead lever 601 then can be connected rotatory board 602, and the grip ring piece 606 that rotor plate 602 inside was connected can realize the centre gripping and the spacing to the heat exchange tube, rotor plate 602 accessible slip cap piece 603 is connected first gag lever post 604 and second gag lever post 605, rotatory ring piece 607 then can utilize connecting block 608 to connect fixed ring piece 609, simultaneously when rotatory ring piece 607 is rotating, can drive fixed ring piece 609 through connecting block 608 and rotate together, and the rotation between first gag lever post 604 and the fixed ring piece 609 is connected, and the rotation between second gag lever post 605 and the rotatory piece, make when rotatory ring piece 605 is rotating, can drive slip cap piece 605 through first gag lever post 604 and second gag lever post 603 smoothly and the slip cap piece 603 is rotating, thereby realize that the slip cap piece 602 is not rotated and can be rotated 602, and the size is rotated 602 is rotated and can be rotated and the fixed 602 simultaneously.

Referring to fig. 5 and 6, the driving assembly 610 includes a driving gear 6101, one side of the driving gear 6101 is fixedly connected with an output end of the first servo motor 611, one side of the driving gear 6101 is rotatably connected with one side of the connecting plate 5, a driven toothed ring 6102 is fixedly connected to a surface of the rotary ring block 607, teeth of the driven toothed ring 6102 are meshed with teeth of the driving gear 6101, the first servo motor 611 can smoothly drive the driving gear 6101 to rotate when operating, and the first servo motor 611 can smoothly drive the rotary ring block 607 to rotate through the driven toothed ring 6102 when operating due to the mutual meshing of the driving gear 6101 and the driven toothed ring 6102, so as to realize the rotation and movement of the clamping ring block 606.

Referring to fig. 1 and 3, the inner cavity of the installation block 3 is rotationally connected with a bidirectional screw rod 7, the inner cavity of the moving block 4 is in threaded connection with the surface of the bidirectional screw rod 7, one side of the installation block 3 is fixedly connected with a second servo motor 8, the output end of the second servo motor 8 penetrates through the installation block 3 and is fixedly connected with one end of the bidirectional screw rod 7, the two moving blocks 4 are in threaded connection with the surface of the bidirectional screw rod 7, threads on two sides of the bidirectional screw rod 7 are opposite, when the second servo motor 8 operates, the two moving blocks 4 can smoothly drive the bidirectional screw rod 7 to rotate and connect, and the moving block 4 is in sliding connection with the inner part of the installation block 3 by utilizing the threaded connection of the moving block 4 and the bidirectional screw rod 7, so that the moving block 4 and the clamping mechanism 6 can horizontally move when needed, and further clamping and limiting heat exchange pipes with different lengths can be realized.

Referring to fig. 1 and 2, the top sliding connection of base 2 has electric telescopic handle 12, electric telescopic handle 12's one end fixedly connected with backup pad 13, spacing groove 9 has been seted up to the inner chamber of installation piece 3, one side fixedly connected with stopper 10 of movable block 4, the surface and the inner chamber sliding connection of spacing groove 9 of stopper 10, electric telescopic handle 12 can drive backup pad 13 through the operation of oneself and go up and down, and backup pad 13 then can play certain supporting role to placing the inside of connecting plate 5, and the heat exchange tube that is not held, make when the staff is in the state of horizontal slope because of the heat exchange tube when needs to carry out the centre gripping, and the condition that can't be held smoothly appears, the limiting groove 9 accessible stopper 10 plays spacing effect to the removal of movable block 4, make the removal of movable block 4 can be enough stable, and be difficult for taking place the circumstances of rotation or skew by a wide margin at the in-process of removal.

Referring to fig. 4 and 5, a reinforcing ring block 15 is fixedly connected to one side of the connecting plate 5, an inner cavity of the reinforcing ring block 15 is fixedly connected with a surface of the fixing rod 601, the reinforcing ring block 15 can be fixedly connected with the connecting plate 5 through the fixing rod, and the fixing rod 601 is connected with and used for reinforcing the fixing rod 601, so that the fixing rod 601 can be stable enough to shake or break when the rotating plate 602 is driven to rotate and move.

Referring to fig. 5 and 6, a hollow groove 16 is formed in one side of the connecting plate 5, a sliding rod 17 is fixedly connected to one side of the rotating ring block 607, the surface of the sliding rod 17 is slidably connected with the inner cavity of the hollow groove 16, and the hollow groove 16 plays an important role in assisting and limiting the rotating ring block 607 through the sliding rod 17, so that the rotating ring block 607 is not easy to fall and shake when rotating, and the stability of the rotating plate 602 and the clamping ring block 606 in use is greatly improved.

Referring to fig. 2 and 5, the baffle 11 is fixedly connected with the inner cavity of the installation block 3, the surface of the baffle 11 is slidably connected with the inner cavity of the moving block 4, the rubber sleeve 14 is movably adhered to the surface of the clamping ring block 606, the baffle 11 not only can play a further limiting role on the movement of the moving block 4, but also can play a shielding role on fragments generated during welding of the heat exchange pipe, so that the fragments are not easy to fall into the installation block 3 in a large amount, the use of the bidirectional screw 7 is affected, the rubber sleeve 14 can reduce the abrasion of the surface of the heat exchange pipe when the clamping ring block 606 clamps the heat exchange pipe, and meanwhile, the friction force of the clamping ring block 606 during clamping the heat exchange pipe can be increased, and the stability during clamping is increased.

Working principle: when the device is used, a worker can adjust the positions of the moving block 4 and the clamping mechanism 6 according to the length of a heat exchange pipe to be welded, a second servo motor 8 can be started during adjustment, the bidirectional screw rod 7 is driven to rotate through the operation of the second servo motor 8, the moving block 4 is driven to move by utilizing the threaded connection between the moving block 4 and the bidirectional screw rod 7, and the two moving blocks 4 can move in opposite directions because the threads on the two sides of the bidirectional screw rod 7 are opposite, after the two moving blocks 4 move to a proper position, the heat exchange pipe to be welded can be placed in the connecting plate 5, then an electric telescopic rod 12 is started, a supporting plate 13 is driven to ascend through the electric telescopic rod 12, the supporting plate 13 can play a certain supporting role on the heat exchange pipe, and the heat exchange pipe can be kept in a relatively horizontal state, after the horizontal angle of the heat exchange tube is adjusted, a worker can start the first servo motor 611, and the driven toothed ring 6102 and the rotary ring block 607 are driven to rotate by the operation of the first servo motor 611 and the mutual engagement between the driving gear 6101 and the driven toothed ring 6102, and the rotary ring block 607 is driven to rotate by the connection block 608 and the rotary ring block 607 and the clamping ring block 606, so that the rotary ring block 607 can rotate the fixed ring block 609 together, the rotary ring block 607 and the fixed ring block 609 are connected in a rotating way, the sliding sleeve block 603 is driven to rotate between the rotary ring block 607 and the fixed ring block 609 by the first limiting rod 604 and the second limiting rod 605 smoothly, and the sliding sleeve block 603 can rotate by the sliding connection between the rotary plate 602 and the rotary plate 602, so as to drive the rotary plate 602 to rotate around the center of the fixed rod 601, remove to make rotor plate 602 can drive clamping ring piece 606 and rotate, remove, and then realize the regulation to clamping ring piece 606 position, with the realization to the centre gripping and the fixed of not unidimensional heat exchange tube, afterwards the reverse operation of accessible electric telescopic handle 12, make backup pad 13 move down, reset can, after that only need with the heat exchange tube that needs welded weld can.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims (7)

1. The welding tool for the tubular heat exchanger is characterized by comprising a processing table (1), wherein one side of the processing table (1) is fixedly connected with a base (2), the top of the base (2) is fixedly connected with a mounting block (3), the inner cavity of the mounting block (3) is slidably connected with moving blocks (4), two moving blocks (4) are arranged, the top of each moving block (4) is fixedly connected with a connecting plate (5), and one side of each connecting plate (5) is provided with a clamping mechanism (6);

Clamping mechanism (6) are including dead lever (601), one end of dead lever (601) and one side fixedly connected with connecting plate (5), the surface rotation of dead lever (601) is connected with rotor plate (602), the surface sliding connection of rotor plate (602) has slip cap piece (603), the top and the bottom of slip cap piece (603) rotate respectively and are connected with first gag lever post (604) and second gag lever post (605), the inner chamber rotation of rotor plate (602) is connected with centre gripping loop block (606), one side rotation of connecting plate (5) is connected with rotatory loop block (607), one side fixedly connected with connecting block (608) of rotatory loop block (607), one side fixedly connected with fixed loop block (609) of connecting block (608), the surface of first gag lever post (604) is connected with the inner chamber rotation of fixed loop block (609), one side fixedly connected with first servo motor (611) of connecting plate (5), one side fixedly connected with servo subassembly (610) of output and penetration drive of first servo assembly (611).

2. The welding fixture of the tubular heat exchanger of claim 1, wherein the driving assembly (610) comprises a driving gear (6101), one side of the driving gear (6101) is fixedly connected with the output end of the first servo motor (611), one side of the driving gear (6101) is rotatably connected with one side of the connecting plate (5), a driven toothed ring (6102) is fixedly connected with the surface of the rotary ring block (607), and teeth of the driven toothed ring (6102) are meshed with teeth of the driving gear (6101).

3. The welding fixture of a tubular heat exchanger according to claim 2, wherein the inner cavity of the installation block (3) is rotationally connected with a bidirectional screw rod (7), the inner cavity of the moving block (4) is in threaded connection with the surface of the bidirectional screw rod (7), one side of the installation block (3) is fixedly connected with a second servo motor (8), and the output end of the second servo motor (8) penetrates through the installation block (3) and is fixedly connected with one end of the bidirectional screw rod (7).

4. The welding fixture of a tubular heat exchanger according to claim 3, wherein the top of the base (2) is slidably connected with an electric telescopic rod (12), one end of the electric telescopic rod (12) is fixedly connected with a supporting plate (13), a limiting groove (9) is formed in an inner cavity of the mounting block (3), a limiting block (10) is fixedly connected to one side of the moving block (4), and the surface of the limiting block (10) is slidably connected with the inner cavity of the limiting groove (9).

5. The welding fixture of a tubular heat exchanger according to claim 4, wherein one side of the connecting plate (5) is fixedly connected with a reinforcing ring block (15), and an inner cavity of the reinforcing ring block (15) is fixedly connected with the surface of the fixing rod (601).

6. The welding fixture of a tubular heat exchanger according to claim 3, wherein a hollow groove (16) is formed in one side of the connecting plate (5), a sliding rod (17) is fixedly connected to one side of the rotary ring block (607), and the surface of the sliding rod (17) is in sliding connection with an inner cavity of the hollow groove (16).

7. The welding fixture of a tubular heat exchanger according to claim 4, wherein the inner cavity of the mounting block (3) is fixedly connected with a baffle plate (11), the surface of the baffle plate (11) is slidably connected with the inner cavity of the moving block (4), and a rubber sleeve (14) is movably bonded on the surface of the clamping ring block (606).