CN211192404U

CN211192404U - Fin coating and brazing tool for cooler

Info

Publication number: CN211192404U
Application number: CN201922004548.4U
Authority: CN
Inventors: 姚建华; 徐磊
Original assignee: Wuxi Aiqite Auto Environmental Protection Technology Co ltd
Current assignee: Wuxi Aiqite Auto Environmental Protection Technology Co ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-08-07
Anticipated expiration: 2029-11-19

Abstract

The utility model discloses a frock of brazing is scribbled to fin for cooler belongs to the technical field of cooler, aims at providing an improve work efficiency scribble frock of brazing, and its technical scheme main points are including base, silk screen version and the scraper blade of setting in the base top, an at least landing leg on the base, silk screen version border is connected with the landing leg, leave the space that is used for placing the ripple fin between silk screen version and the base, the landing leg is provided with four, four the landing leg is the rectangle and arranges on the base, be equipped with the actuating mechanism that slides of drive scraper blade at silk screen version between scraper blade and the landing leg, be equipped with the hold-down mechanism of drive scraper blade towards the motion of base direction between actuating mechanism and the scraper blade of sliding. Through the setting of scribbling the frock of brazing, can play and make the quick cladding of solder at the both sides limit of corrugated fin face of weld, promote work efficiency effect.

Description

Fin coating and brazing tool for cooler

Technical Field

The utility model relates to a technical field of cooler, in particular to fin is scribbled frock of brazing for cooler.

Background

With increasingly stringent emissions requirements, exhaust gas recirculation technology is increasingly being used on power plants, and EGR coolers of various configurations are being produced in succession. Among them, the plate-fin EGR cooler is more applied due to its excellent heat dissipation performance. The whole vehicle layout requirement is more and more compact, so the plate type EGR cooler with high efficiency and U shape is more and more applied.

In a conventional U-shaped plate-fin EGR cooler, the air-side passages are formed by a plurality of flat tube assembly units. The single flat pipe assembly unit consists of flat pipes and heat exchange fins plugged inside the flat pipes. Each flat tube assembly unit is welded with the corresponding holes of the end plates at the two ends to form a core assembly. The end plates at two ends of the core component are welded with the shell, the air inlet (outlet) chamber, the end cover and the like. And a water inlet interface and a water outlet interface are welded on the shell to form the EGR cooler assembly. Therefore, waste gas flows through the inner sides of the flat pipe component units, namely the waste gas flows in from one part of the flat pipe component units and flows out from the other part of the flat pipe components to form a U-shaped channel. The outer side of the flat pipe component unit and the inner cavity of the shell are communicated with cooling liquid, and the cooling liquid absorbs the heat of the waste gas and takes away the heat.

Chinese patent No. CN102900570B discloses a U-shaped EGR cooler, which includes a first connecting flange, a first main connecting plate, a second main connecting plate, a first auxiliary connecting plate, a second auxiliary connecting plate, a housing, a gas-side end cover and a water-side end cover, wherein at least two flat tube assembly unit groups are arranged in the housing, the first main connecting plate is provided with through holes corresponding to the flat tubes, the periphery containing all the through holes is provided with an inward-concave inclined surface, and the front and rear end surfaces of the first main connecting plate are respectively connected with the first connecting flange and the first auxiliary connecting plate; the first auxiliary connecting plate is provided with a plurality of through holes with flanges corresponding to the flat pipes, and the periphery containing all the through holes is provided with an inwards concave inclined plane.

As shown in fig. 1, 2 and 3, in the production of the U-shaped EGR cooler, it is necessary to load the corrugated fin 101 into the flat tube 100, and solder-weld the contact portion between the corrugated fin 101 and the flat tube 100 by brazing, and if the solder 102 is directly applied to the welding surface between the corrugated fin 101 and the flat tube 100, it is not only inconvenient in welding but also poor in welding effect, so the solder 102 is generally applied to both sides of the welding surface of the corrugated fin 101, and the strip solder 102 is cooled and solidified and then inserted into the flat tube 100 for welding. During soldering, the solder 102 melts and overflows to the soldering surface of the corrugated fin 101, thereby soldering the corrugated fin 101 and the flat tube 100 together.

At present, the welding flux 102 is generally applied to two side edges of the welding surface of the corrugated fin 101 manually, and since the welding surface of the corrugated fin 101 is more, workers need to spend a lot of effort to apply the welding flux 102 to the two side edges of the welding surface of the corrugated fin 101, thereby greatly reducing the working efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a frock of brazing is scribbled to fin for cooler has the advantage that improves work efficiency.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the fin coating and brazing tool for the cooler comprises a base, a screen printing plate and a scraper, wherein the screen printing plate and the scraper are arranged above the base, at least one supporting leg is arranged on the base, the edge of the screen printing plate is connected with the supporting leg, and a space for placing corrugated fins is reserved between the screen printing plate and the base.

Through adopting above-mentioned technical scheme, place the ripple fin on the base, cover the screen printing plate on the ripple fin surface to at the solder coating screen printing plate surface, then support and lean on the screen printing plate surface through the scraper blade, and extrude the solder in the hole of screen printing plate, make the solder cladding in the both sides limit of ripple fin face of weld, thereby make work efficiency obtain very big promotion.

Furthermore, four supporting legs are arranged on the base in a rectangular shape, a sliding driving mechanism for driving the scraper to slide on the silk screen printing plate is arranged between the scraper and the supporting legs, and a pressing mechanism for driving the scraper to move towards the direction of the base is arranged between the sliding driving mechanism and the scraper.

Through adopting above-mentioned technical scheme, place the ripple fin on the base, hold-down mechanism drive scraper blade moves towards the silk screen version, and the scraper blade compresses tightly the silk screen version and makes the silk screen version laminate ripple fin, and the actuating mechanism that slides drives the scraper blade and removes for the solder passes the silk screen version, and the solder passes and coats the both sides limit of ripple fin face of weld behind the silk screen version, drives the scraper blade through the actuating mechanism that slides and removes, has greatly promoted work efficiency.

Further, the driving mechanism that slides includes two slide bars that are parallel to each other, slide bar both ends and corresponding landing leg fixed connection, the slip cover is equipped with the slider on the slide bar, the driving mechanism that slides still includes the cylinder that slides that the drive slider slided along the slide bar, the slider both ends are connected with corresponding slider respectively.

Through adopting above-mentioned technical scheme, the cylinder that slides stretches out and draws back its piston rod and drives the slider and remove, and two sliders drive the scraper blade and remove on the silk screen board, and two slide bars carry on spacingly to the slippage route of scraper blade, avoid scraper blade route skew to reinforcing coating effect.

Furthermore, the driving mechanism that slides includes two mutual parallel arrangement's lead screw, the lead screw both ends are rotated with corresponding landing leg and are connected, the spiro union has the slider on the lead screw, the driving mechanism that slides still includes drive lead screw pivoted driving motor, the scraper blade both ends are connected with corresponding slider respectively.

By adopting the technical scheme, the two driving motors simultaneously drive the two corresponding lead screws to synchronously rotate, the lead screws drive the sliding blocks to slide on the lead screws in a reciprocating manner, and the sliding blocks drive the scraping plates to slide on the silk screen printing plate, so that the welding flux is extruded out of the silk screen printing plate and coated on two side edges of the welding surface of the corrugated fin.

Further, hold-down mechanism wears to establish the compression bar in the slider including sliding, the compression bar sets up along vertical direction, the top surface and the bottom surface of slider are passed respectively at compression bar both ends, the compression bar top is equipped with the locating part, the compression bar bottom is rotated with the scraper blade and is connected, the cover is equipped with the pressure spring on the compression bar, pressure spring one end is contradicted with the scraper blade, and the other end is contradicted with the slider bottom surface.

Through adopting above-mentioned technical scheme, thereby the pressure spring that is in under the compression state contradicts the scraper blade and orders about the clamp plate and move towards the silk screen version, and the pressure spring contradicts the silk screen version and makes silk screen version and ripple fin laminating. In addition, the height of the scraper can be adjusted in a self-adaptive mode through the pressure spring according to the thickness of the corrugated fin, and the applicability is stronger.

Further, the slider is equipped with the sleeve of vertical setting corresponding to the position department of compression bar, set up two bar grooves that set up along vertical direction on the sleeve, two bar grooves set up about telescopic axis symmetry, the locating part is the spacer pin that the level set up.

Through adopting above-mentioned technical scheme, when the scraper blade is not in operating condition, upwards mention the tucking bar, the pressure spring is compressed, when the spacer pin breaks away from the bar groove, rotates the tucking bar and makes the spacer pin support and lean on at the sleeve terminal surface to the convenience is placed the ripple fin between the silk screen version base, also can avoid the scraper blade to contradict the silk screen version always, avoids causing the damage to the silk screen version.

Furthermore, the limiting pin is detachably connected with the pressing rod.

Through adopting above-mentioned technical scheme, make things convenient for the dismouting of compress tightly the pole on sleeve and slider, reduce the later maintenance cost.

Furthermore, the surface of the base is provided with grooves for placing corrugated fins.

By adopting the technical scheme, the grooves limit the corrugated fins, so that the corrugated fins are prevented from sliding on the base under extrusion when the welding flux is coated on the corrugated fins, and the effect of coating the welding flux is enhanced.

To sum up, the utility model discloses following beneficial effect has:

1. through the arrangement of the coating and brazing tool, the welding flux can be quickly coated on two side edges of the welding surface of the corrugated fin, and the working efficiency is improved;

2. through the arrangement of the sliding driving mechanism, the effect of greatly improving the working efficiency can be achieved;

3. through the arrangement of the grooves, the corrugated fins can be prevented from sliding on the base under extrusion when the welding flux is coated on the corrugated fins, and therefore the welding flux coating effect is enhanced.

Drawings

FIG. 1 is a schematic view of a prior art corrugated fin;

FIG. 2 is a schematic diagram of the position relationship of corrugated fins in flat tubes in the prior art;

FIG. 3 is a side view of a prior art corrugated fin;

FIG. 4 is a schematic view of a coating and brazing tool used in embodiment 1;

FIG. 5 is an enlarged view of part A of FIG. 4 in example 1;

FIG. 6 is a schematic view of a coating and brazing tool used in example 2.

In the figure, 1, a base; 11. a groove; 12. a support leg; 2. a screen printing plate; 21. a collar; 3. a squeegee; 31. angle steel; 4. a slip drive mechanism; 41. a slide bar; 42. a slider; 43. a slipping cylinder; 44. a lead screw; 45. a drive motor; 5. a hold-down mechanism; 51. a hold down bar; 52. a limiting member; 53. a pressure spring; 54. a sleeve; 541. a strip-shaped groove; 100. flat tubes; 101. a corrugated fin; 102. and (3) soldering.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1: a fin coating and brazing tool for a cooler is shown in figure 4 and comprises a base 1, a screen printing plate 2, a scraper 3 and a sliding driving mechanism 4.

As shown in fig. 3 and 4, grooves 11 are formed in the surface of the base 1, the grooves 11 are used for placing the corrugated fins 101 and positioning and limiting the corrugated fins 101, and the depth of the grooves 11 is smaller than the height of the corrugated fins 101.

Four supporting legs 12 are arranged on the base 1, the four supporting legs 12 are arranged on the base 1 in a rectangular mode, and the supporting legs 12 are fixed on the base 1 through welding. The silk screen plate 2 is made of rectangular iron wire, and edges of the iron wire are sealed. The four corners of the screen printing plate 2 are provided with the lantern rings 21, and the screen printing plate 2 is sleeved on the supporting legs 12, so that the screen printing plate 2 can be limited, and the screen printing plate 2 is prevented from deviating on the base 1 during working.

When the collar 21 and the leg 12 are welded together, a space for placing the corrugated fin 101 is left between the screen plate 2 and the base 1. In addition, the collar 21 and the leg 12 can be slidably fitted together.

The scraper 3 is a strip-shaped lath, and the bottom of the scraper 3 is arranged into a triangular prism shape, so that the solder 102 on the screen printing plate 2 can be conveniently scraped.

A sliding driving mechanism 4 for driving the scraper 3 to slide on the screen printing plate 2 is arranged between the scraper 3 and the supporting legs 12, the sliding mechanism comprises two sliding rods 41 which are arranged in parallel, and two ends of each sliding rod 41 are welded with the corresponding supporting legs 12. The sliding rod 41 is slidably sleeved with a sliding block 42, the sliding block 42 is provided with a shaft hole, and the sliding rod 41 penetrates through the shaft hole.

The sliding driving mechanism 4 further comprises a sliding cylinder 43 for driving the sliding block 42 to slide along the sliding rod 41, the sliding cylinder 43 is horizontally arranged, a cylinder body of the sliding cylinder 43 is fixedly installed on the corresponding supporting leg 12, and two ends of the scraping plate 3 are respectively connected with the corresponding sliding block 42.

The sliding cylinder 43 extends and retracts the piston rod thereof to drive the slide block 42 to move along the slide rod 41, the slide block 42 drives the scraper 3 to move, and the scraper 3 coats the solder 102 on the screen plate 2 on the corrugated fin 101.

As shown in fig. 4 and 5, a pressing mechanism 5 for driving the scraper 3 to move towards the base 1 is arranged between the slider 42 and the scraper 3, the pressing mechanism 5 includes a pressing rod 51 slidably inserted into the slider 42, the pressing rod 51 is arranged along the vertical direction, two ends of the pressing rod 51 respectively penetrate through the top surface and the bottom surface of the slider 42, a limiting member 52 is arranged at the top end of the pressing rod 51, the limiting member 52 is a horizontally arranged limiting pin, a shaft hole is arranged at the top end of the pressing rod 51, and the limiting pin is slidably inserted into the shaft hole.

The bottom end of the pressing rod 51 is rotatably connected with the scraper 3, two ends of the scraper 3 are provided with angle steel 31, and the pressing rod 51 penetrates through the angle steel 31 and is connected with a bolt in a threaded mode. The pressing rod 51 of the scraper 3 is sleeved with a pressure spring 53, one end of the pressure spring 53 is abutted against the scraper 3, and the other end of the pressure spring is abutted against the bottom surface of the sliding block 42.

The slider 42 is provided with a vertically arranged sleeve 54 at a position corresponding to the pressing rod 51, the sleeve 54 is provided with two strip-shaped grooves 541 arranged along the vertical direction, and the two strip-shaped grooves 541 are symmetrically arranged about the axis of the sleeve 54.

When the scraper 3 is not in a working state, the pressing rod 51 is lifted upwards, the pressure spring 53 is compressed, and when the limit pin is separated from the strip-shaped groove 541, the pressing rod 51 is rotated to enable the limit pin to abut against the end surface of the sleeve 54, so that the corrugated fin 101 (see fig. 3) is conveniently placed between the screen printing plate 2 and the base 1, the scraper 3 can be prevented from always abutting against the screen printing plate 2, and the screen printing plate 2 is prevented from being damaged.

The specific implementation process comprises the following steps: the corrugated fin 101 is placed in the groove 11 on the base 1, the surface of the corrugated fin 101 is covered by the screen printing plate 2, the solder 102 is coated on the surface of the screen printing plate 2, the piston rod of the telescopic screen printing plate is driven to drive the sliding block 42 to slide back and forth, the scraper 3 abuts against the surface of the screen printing plate 2, and the solder 102 is extruded out of the hole of the screen printing plate 2, so that the solder 102 is coated on two side edges of the welding surface of the corrugated fin 101.

Example 2: a fin coating and brazing tool for a cooler is shown in figure 6 and is different from the fin coating and brazing tool in embodiment 1 in that a sliding driving mechanism 4 comprises two lead screws 44 which are arranged in parallel, and two ends of each lead screw 44 are rotatably connected with corresponding supporting legs 12 through bearings. The two screw rods 44 are respectively screwed with a sliding block 42, the sliding driving mechanism 4 further comprises a driving motor 45 for driving the screw rods 44 to rotate, the driving motor 45 is fixedly installed on the corresponding supporting leg 12, and two ends of the scraper 3 are respectively connected with the corresponding sliding blocks 42. The two driving motors 45 can be controlled by the same frequency converter, so that the two driving screws 44 can be started at the same rotating speed and at the same time, and the problem caused by asynchronous rotation of the two screws 44 is avoided.

Two driving motors 45 simultaneously drive two corresponding lead screws 44 to synchronously rotate, the lead screws 44 drive the slide blocks 42 to slide on the lead screws in a reciprocating manner, and the slide blocks 42 drive the scraper plates 3 to slide on the screen printing plate 2, so that the solder 102 is extruded out of the screen printing plate 2 and coated on two sides of the welding surface of the corrugated fin 101 (see fig. 3).

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a fin scribbles frock of brazing for cooler which characterized in that: the novel corrugated fin plate is characterized by comprising a base (1), a screen plate (2) and a scraper (3), wherein the screen plate (2) and the scraper (3) are arranged above the base (1), at least one supporting leg (12) is arranged on the base (1), the edge of the screen plate (2) is connected with the supporting leg (12), and a space for placing a corrugated fin (101) is reserved between the screen plate (2) and the base (1).

2. The fin coating and brazing tool for the cooler is characterized in that: the screen printing machine is characterized in that four supporting legs (12) are arranged on the base (1), four supporting legs (12) are arranged on the base in a rectangular mode, a sliding driving mechanism (4) for driving the scraper (3) to slide on the screen printing plate (2) is arranged between the scraper (3) and the supporting legs (12), and a pressing mechanism (5) for driving the scraper (3) to move towards the direction of the base (1) is arranged between the sliding driving mechanism (4) and the scraper (3).

3. The fin coating and brazing tool for the cooler is characterized in that: slide actuating mechanism (4) include two mutual parallel arrangement's slide bar (41), slide bar (41) both ends and corresponding landing leg (12) fixed connection, the slip cap is equipped with slider (42) on slide bar (41), slide actuating mechanism (4) still include drive slider (42) along slide bar (41) the cylinder (43) that slides that slide, slider (42) both ends are connected with corresponding slider (42) respectively.

4. The fin coating and brazing tool for the cooler is characterized in that: the sliding driving mechanism (4) comprises two lead screws (44) which are arranged in parallel, two ends of each lead screw (44) are rotatably connected with corresponding supporting legs (12), each lead screw (44) is connected with a sliding block (42) in a threaded mode, the sliding driving mechanism (4) further comprises a driving motor (45) for driving each lead screw (44) to rotate, and two ends of each scraper blade (3) are respectively connected with the corresponding sliding blocks (42).

5. The fin coating and brazing tool for the cooler is characterized in that: hold-down mechanism (5) wear to establish compressing rod (51) in slider (42) including sliding, compressing rod (51) sets up along vertical direction, compressing rod (51) both ends pass the top surface and the bottom surface of slider (42) respectively, compressing rod (51) top is equipped with locating part (52), compressing rod (51) bottom is rotated with scraper blade (3) and is connected, the cover is equipped with pressure spring (53) on compressing rod (51), pressure spring (53) one end is contradicted with scraper blade (3), and the other end is contradicted with slider (42) bottom surface.

6. The fin coating and brazing tool for the cooler according to claim 5, wherein the fin coating and brazing tool comprises: slider (42) are equipped with sleeve (54) of vertical setting corresponding to the position department of compressing tightly pole (51), set up two bar grooves (541) that set up along vertical direction on sleeve (54), two bar grooves (541) are about the axis symmetry setting of sleeve (54), locating part (52) are the spacer pin of level setting.

7. The fin coating and brazing tool for the cooler is characterized in that: the limiting pin is detachably connected with the pressing rod (51).

8. The fin coating and brazing tool for the cooler is characterized in that: the surface of the base (1) is provided with grooves (11) for placing corrugated fins (101).