CN111168335B - Processing technology of internal combustion engine radiator - Google Patents
Processing technology of internal combustion engine radiator Download PDFInfo
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- CN111168335B CN111168335B CN202010095957.4A CN202010095957A CN111168335B CN 111168335 B CN111168335 B CN 111168335B CN 202010095957 A CN202010095957 A CN 202010095957A CN 111168335 B CN111168335 B CN 111168335B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/008—Soldering within a furnace
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
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- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention discloses a processing technology of a radiator of an internal combustion engine, which comprises the following steps: s1, selecting materials; s2, blanking, and integrally extruding and forming the water chamber and the clamping part at the lower end; s3, assembling the core body; s4, assembling the core body and the water chamber; s5, pressing the core body and the water chamber, and pressing the clamping part and the main sheet inside the clamping part through an extruding device; s6, assembling the water chamber end plate; s7, assembling a reinforcing plate; s8, brazing and forming; the processing technology of the internal combustion engine radiator provided by the invention can improve the welding quality and the qualification rate of water testing and pressing, so that the qualification rate of one-time pressing reaches more than 98%; the assembly efficiency of the aluminum water chamber and the main sheet is improved, and the molding period of the radiator is shortened; the automation level is improved, the manual operation is reduced, and the yield of finished products of the radiator is not restricted by argon arc welders; compared with other processes, the product appearance is more beautiful.
Description
Technical Field
The invention relates to a processing technology of a radiator of an internal combustion engine, belonging to the technical field of heat exchange equipment.
Background
At present, engineering machinery, a generator set, various heavy trucks and light trucks are used as radiators, the radiator specifically comprises a water chamber and a core body, and the core body is formed by assembling a main sheet, a radiating pipe, a radiating belt and a reinforcing plate; the water chamber of the radiator is made of aluminum or carbon steel, the aluminum water chamber and the main sheet are connected and sealed through argon arc welding, and the carbon steel water chamber and the main sheet are connected and sealed through bolts and sealing gaskets.
The manufacturing process of the existing aluminum water chamber radiator mainly comprises the following steps: assembling the radiating pipe, the radiating belt and the main sheet, and placing the core body into a brazing furnace for brazing after the assembly is inspected to be qualified; after the brazing is finished, assembling the core body and the water chamber, and after the assembly is inspected to be qualified, welding, connecting and sealing the water chamber and the core body by adopting argon arc welding; this way of production has significant drawbacks:
1. the argon arc welding is adopted for welding the connected radiators, the qualified rate of water testing and pressing is low, when the pressing test pressure is 0.125Mpa, the qualified rate of the radiators is only 90% -92%, the qualified rate of water testing and pressing of the radiators is limited by the skill of argon arc welders, the welding quality is unstable, and welding defects are easy to generate;
2. the efficiency of assembling the aluminum water chamber and the main sheet is extremely low, so that the molding cycle of the whole radiator is influenced;
3. at present, argon arc welders with qualified operation skills are in short supply, and become a bottleneck link in the whole manufacturing process of the radiator, and the yield of finished products of the radiator is restricted;
4. the argon arc welding has poor weld joint forming appearance and influences the attractiveness.
In summary, the manufacturing method in the prior art has great disadvantages, so it is necessary to provide a novel processing technology of the internal combustion engine radiator to solve the disadvantages in the prior art.
Disclosure of Invention
The invention aims to solve the technical problems and provides a processing technology of a radiator of an internal combustion engine, which can improve the welding quality and the qualification rate of water test pressing, and enables the qualification rate of one-time pressing to reach more than 98%; the assembly efficiency of the aluminum water chamber and the main sheet is improved, and the molding period of the radiator is shortened; the automation level is improved, the manual operation is reduced, and the yield of finished products of the radiator is not restricted by argon arc welders; compared with other processes, the product appearance is more beautiful.
The invention adopts the following technical scheme:
a processing technology of an internal combustion engine radiator comprises the following steps:
s1, selecting materials: the main sheet, the water chamber end plate and the heat dissipation belt are all made of double-sided composite aluminum materials; the water chamber, the radiating pipe and the reinforcing plate are all made of 3003 aluminum alloy materials;
s2, blanking: punching the main sheet, and forming a long hole on the main sheet; the water chamber and the clamping part at the lower end are integrally extruded and formed; punching and forming the water chamber end plate after the die is opened according to the cross section sizes of the two ends of the water chamber;
s3, core body assembly: paving the radiating pipes layer by layer, placing radiating belts between the radiating pipes, taking out the radiating pipes after compressing and fixing, and finally placing the main sheets at two ends of the radiating pipes for assembly;
s4, assembling the core body and the water chamber: after the core body is assembled, the main sheets at the two end parts of the core body are inserted into the clamping grooves of the clamping part at the lower end part of the water chamber from one side, and the water chamber is pushed to enable the center of the water chamber to coincide with the center of the core body;
s5, pressing the core body and the water chamber: the core body and the water chamber are positioned through a positioning tool in the extruding device, then the clamping part and the main sheet in the clamping part are compressed through a compressing tool controlled by an oil cylinder, and after the compression is finished, the assembling clearance between the main sheet and the water chamber is controlled within 0.08 mm;
s6, assembling the water chamber end plate: the water chamber end plate is in interference fit with the inner cross section of the water chamber, and the water chamber end plate is manually pressed into the inner cross section of the water chamber;
s7, assembling the reinforcing plate: inserting the two ends of the reinforcing plate into the strip holes in the main sheet;
s8, brazing and forming: firstly, the assembled core body, the water chamber end plate and the reinforcing plate are integrally sprayed with welding powder, and the whole body is placed into a brazing furnace for brazing after being sprayed, and sequentially enters a preheating zone, a first-stage heating zone, a second-stage heating zone and a cooling zone of the brazing furnace.
Further, the intermediate substrate of the double-sided composite aluminum material in the step S1 is 3003 aluminum alloy layer, the upper and lower compound layers of the aluminum material are 4045 or 4343 brazing layers, the tensile strength of the composite aluminum plate is 170 MPa-210 MPa, and the elongation after fracture is 8% -10%.
Further, the pressure of the oil cylinder in the step S5 is 8-10MPa, the oil cylinder is kept for 2-3 seconds after being pressed tightly, and the stroke of the oil cylinder is controlled through a stroke switch.
Further, the lower tip outside of hydroecium is equipped with the joint portion of a U type respectively, and the U type opening level of two joint portions sets up to inboard symmetry, and joint portion inside is equipped with a bar draw-in groove, and the degree of depth of draw-in groove is 5mm, and the width of draw-in groove is 2.1 ~ 2.15 mm.
Further, the main sheet is of a rectangular plate-shaped structure, and the thickness of the main sheet is 2 mm.
Furthermore, the extrusion device comprises two positioning tools which are symmetrically arranged up and down and two pressing tools which are symmetrically arranged left and right; the positioning tool is used for accurately positioning the assembled core body and the water chamber; the pressing tool is used for pressing the clamping portion and the inner main sheet.
Furthermore, the positioning tool is fixedly connected with a vertically arranged cylinder piston rod through a mounting plate, and two sides of the cylinder piston rod are respectively provided with a vertical guide rod; two sides of the end part of the positioning tool are respectively provided with a strip-shaped positioning block, and the positioning blocks are used for positioning the clamping parts.
Further, the pressing tool comprises a vertical plate, and the vertical plate is fixedly connected with the end part of a piston rod of the oil cylinder which is horizontally arranged through a mounting plate; two extrusion plates which are horizontally arranged up and down are fixed on the inner side of the vertical plate, and a rectangular accommodating cavity is arranged between the two extrusion plates; two end parts of the vertical plate are respectively fixed with an ear plate, and a transverse guide rod is arranged on the ear plate in a penetrating way.
After the technical scheme is adopted, compared with the prior art, the invention has the following advantages:
1. according to the processing technology of the internal combustion engine radiator, the connection structure of the water chamber and the main sheet is redesigned, the connection part of the lower end of the water chamber and the main sheet is designed into a clamping groove structure, and the adaptability of the section size of the clamping groove and the main sheet is guaranteed; and the special extrusion equipment and the special tooling are used for correcting and accurately controlling the fit clearance in the assembling process;
2. by the processing technology, the production efficiency of the radiator is greatly improved, the welding quality is stable and reliable, the one-time pressing qualified rate reaches more than 98% when the radiator passes the 0.125Mpa pressing test, and the qualified rate is greatly improved compared with the prior art;
3. the water chamber is matched with the main sheet through the clamping groove, is corrected through special extrusion equipment, and is finally formed with the core body through one-time brazing, the assembly mode that the traditional radiator is brazed firstly and then argon arc welding is replaced, the assembly efficiency is greatly improved, and the forming period of the whole radiator is shortened;
4. the assembly between the water chamber and the main sheet is completed through automatic equipment, so that the automation level is improved, the manual operation is reduced, the problem of personnel shortage of argon arc welders is solved, and the yield of finished products of the radiator is not limited by the argon arc welders;
5. the smoothness and appearance of the weld seam of the radiator formed by the new process are improved.
The present invention will be described in detail below with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic view of a heat sink according to the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is an enlarged view of portion M of FIG. 2;
FIG. 4 is a schematic structural view of an end plate of a water chamber in the present invention;
FIG. 5 is a schematic view illustrating a process of compressing the water chamber and the main panel in the present invention;
FIG. 6 is a schematic structural view of the pressing tool of the present invention;
in the figure, 1-core body, 2-main sheet, 3-water chamber, 4-water chamber end plate, 5-clamping part, 6-clamping groove, 7-positioning tool, 8-pressing tool, 81-vertical plate, 82-extrusion plate, 83-containing cavity, 84-stiffening plate, 85-ear plate, 86-guide hole, 9-cylinder piston rod, 10-vertical guide rod, 11-cylinder piston rod and 12-positioning block.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings.
As shown in fig. 1, 2, 3, 4, 5 and 6, the invention provides a process for processing a radiator of an internal combustion engine, which comprises the following steps:
s1, selecting materials: the main sheet 2, the water chamber end plate 4 and the heat dissipation belt are all made of double-sided composite aluminum materials, a base body in the middle of the aluminum material is a 3003 aluminum alloy layer, composite layers on the upper surface and the lower surface of the aluminum material are 4045 or 4343 brazing layers, the tensile strength of the composite aluminum plate is 170 Mpa-210 Mpa, and the elongation after fracture is 8% -10%; the water chamber 3, the radiating pipe and the reinforcing plate are all made of 3003 aluminum alloy materials;
s2, blanking: punching the main sheet 2, forming a long hole on the main sheet 2, and ensuring the gap between the hole of the main sheet 2 and the used radiating pipe to be 0.08-0.1 mm; the water chamber 3 and the clamping part 5 at the lower end are integrally extruded and formed; the water chamber end plate 4 is punched and formed after dies are opened according to the cross section sizes of two ends of the water chamber 3;
s3, core body assembly: the assembling process is carried out by using a core body assembling machine, the radiating pipes are paved layer by layer, a radiating belt is placed between the radiating pipes, the radiating belt is taken out after being compressed and fixed, and finally the main sheet 2 is placed at the two ends of the radiating pipes for assembling;
s4, assembling the core body and the water chamber: after the core body 1 is assembled, the main sheets 2 at two end parts of the core body 1 are inserted into the clamping grooves 6 of the clamping parts 5 at the lower end parts of the water chambers 3 from one side; then the water chamber 3 is pushed, so that the center of the water chamber 3 is superposed with the center of the core body 1 to finish the assembly;
s5, pressing the core body and the water chamber: the core and the water chamber 3 which are assembled in the step S4 are integrated, firstly, the core and the water chamber are positioned through an upper positioning tool 7 and a lower positioning tool 7 which are controlled by an air cylinder in an extrusion device, then the clamping part 5 and the main sheet 2 in the clamping part are compressed through a left compressing tool 8 and a right compressing tool 8 which are controlled by an oil cylinder, the pressure of the oil cylinder is 8-10MPa, the stroke of the oil cylinder is controlled through a stroke switch to adjust a compression gap, the crushing is prevented, the smoothness of a workpiece is ensured, and the pressure is maintained for 2-3 seconds after the oil cylinder is compressed; then the oil cylinder returns, the upper positioning tool 7 is lifted, and the lower positioning tool is pushed out to finish the pressing operation; after the compression is finished, the assembly gap between the main sheet 2 and the water chamber 3 is controlled within 0.08mm so as to meet the size requirement required by brazing;
s6, assembling the water chamber end plate: the water chamber end plate 4 is in interference fit with the inner cross section of the water chamber 3, and the water chamber end plate 4 is manually pressed into the inner cross section of the water chamber 3;
s7, assembling the reinforcing plate: the sizes of the two ends of the reinforcing plate are consistent with the size of the heat exchange tube, and the two ends of the reinforcing plate are inserted into the strip holes in the main sheet 2;
s8, brazing and forming: firstly, integrally putting the assembled core body 1, the water chamber 3, the water chamber end plate 4 and the reinforcing plate into a welding powder spraying machine for welding powder spraying, wherein the parts of the welding powder are a radiating pipe and a radiating belt, a radiating pipe and a main sheet 2, a clamping groove 6 of the main sheet 2 and the water chamber 3, and the reinforcing plate and the main sheet 2; putting the whole radiator sprayed with the welding powder into a brazing furnace for brazing, and preheating for 3min to 300 ℃ in a preheating zone of the brazing furnace; then the mixture enters a first-stage heating zone of a brazing furnace to be heated, wherein the heating time is 4min, and the temperature is 580 ℃; then the workpiece enters a secondary heating area of a brazing furnace, the heating time is 5min, the temperature is 610-620 ℃, and a composite layer on the surface of the workpiece is melted and is completely welded with a brazed part; after brazing, feeding the brazing material into a brazing furnace cooling area, cooling the brazing material by low-temperature nitrogen, wherein the cooling process is about 3-5min, and the final tapping temperature is required to be lower than 50 ℃;
s9, a pressing process: firstly, a pressure test is carried out on the brazed and cooled radiator, the test pressure is 0.125Mpa, and the radiator is qualified after pressure maintaining for 1min without leakage.
As shown in fig. 3, in the invention, the outer sides of the lower end parts of the water chambers 3 are respectively provided with a U-shaped clamping part 5, the two clamping parts 5 are symmetrically arranged, the U-shaped openings of the clamping parts 5 are horizontally arranged towards the inner side, a strip-shaped clamping groove 6 is arranged in each clamping part 5, the depth of each clamping groove 6 is 5mm, the width of each clamping groove 6 is 2.1-2.15 mm, and the clamping grooves 6 are used for installing the edges of the two sides of the main sheet 2; the main sheet 2 is of a rectangular plate-shaped structure, and the thickness of the main sheet 2 is 2 mm.
As shown in fig. 3, 5 and 6, in step S5, an extruding apparatus is used, and the extruding apparatus includes two positioning tools 7 arranged vertically symmetrically and two compressing tools 8 arranged horizontally symmetrically; the positioning tool 7 is used for accurately positioning the assembled core body 1 and the water chamber 3, wherein the core body 1 comprises a main sheet 2, and the main sheet 2 is inserted into a clamping groove 6 of a clamping part 5 at the lower end part of the water chamber 3; the pressing tool 8 is used for pressing the clamping portion 5 and the inner main piece 2.
The main body of the positioning tool 7 is of a rectangular plate-shaped structure, a circular mounting plate is arranged at the outer center of the main body, the circle center of the mounting plate is fixedly connected with a vertically arranged cylinder piston rod 9, and two sides of the cylinder piston rod 9 are respectively provided with a vertical guide rod 10; the cylinder piston rod 9 drives the positioning tool 7 to perform lifting motion, and the vertical guide rod 10 plays a role in assisting in guiding, so that the straightness of the lifting motion of the positioning tool 7 is ensured, and the deviation of a positioning position is avoided; two sides of the lower end part of the positioning tool 7 are respectively provided with a strip-shaped positioning block 12, the positioning blocks 12 can be used for positioning the clamping part 5, and the clamping part can also play a role in supporting and pressing in the extrusion process.
The pressing tool 8 comprises a vertical plate 81, the vertical plate 81 is of a rectangular plate-shaped structure, a mounting plate is fixed on the outer side of the vertical plate 81, and the mounting plate is fixedly connected with the end part of the horizontally arranged oil cylinder piston rod 11; two extrusion plates 82 which are horizontally arranged up and down are fixed on the inner side of the vertical plate 81, and chamfers are arranged inside the suspended ends of the extrusion plates 82 and are used for extruding an included angle between the clamping part 5 and the water chamber 3; a rectangular accommodating cavity 83 is formed between the two extrusion plates 82, the accommodating cavity 83 is used for accommodating the main body of the water chamber 3, and the clamping part 5 is prevented from damaging the main body of the water chamber 3 in the extrusion process; stiffening plates 84 arranged at equal intervals are arranged in an included angle between the outer side of the extrusion plate 82 and the inner side of the vertical plate 81, and the stiffening plates 84 can enhance the bearing capacity of the extrusion plate 82 and the vertical plate 81 and enable the extrusion plate 82 and the vertical plate 81 not to be deformed easily; two end parts of the vertical plate 81 are respectively fixed with a triangular ear plate 85, the ear plates 85 are provided with circular guide holes 86, transverse guide rods penetrate through the interior of the guide holes 86 and play a role in auxiliary guide, the straightness of the horizontal movement of the pressing tool 8 is ensured, and the position of the pressing tool 8 in the extrusion process is ensured not to deviate.
The working process of the extrusion device is as follows: the assembled core body 1 and the water chamber 3 are integrally placed on a lower positioning tool 7, then an air cylinder above the upper positioning tool 7 is started, the upper positioning tool 7 is pressed down, a positioning block 2 and a clamping portion 5 are positioned, then oil cylinders on two sides work, two pressing tools 8 are pushed to contract inwards and extrude, the clamping portion 5 and a main sheet 2 inside are pressed tightly, a pressing gap is controlled through a travel switch, and the oil cylinders are kept for 2-3 seconds after pressing; then the oil cylinder returns, the upper positioning tool 7 is lifted, and the lower positioning tool is pushed upwards to finish the pressing operation; and the compacted core body 1 and the water chamber 3 are subjected to next welding powder spraying and brazing.
The foregoing is illustrative of the best mode of the invention and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The scope of the present invention is defined by the appended claims, and any equivalent modifications based on the technical teaching of the present invention are also within the scope of the present invention.
Claims (8)
1. A processing technology of a radiator of an internal combustion engine is characterized in that: the method comprises the following steps:
s1, selecting materials: the main sheet (2), the water chamber end plate (4) and the heat dissipation belt are all made of double-sided composite aluminum materials; the water chamber (3), the radiating pipe and the reinforcing plate are all made of 3003 aluminum alloy materials;
s2, blanking: the main sheet (2) is punched and formed, and the main sheet (2) is provided with a long hole; the water chamber (3) and the clamping part (5) at the lower end are integrally extruded and formed; the water chamber end plate (4) is punched and formed after dies are opened according to the cross section sizes of the two ends of the water chamber (3);
s3, core body assembly: paving the radiating pipes layer by layer, placing the radiating belts among the radiating pipes, taking out the radiating belts after compressing and fixing, and finally placing the main sheets (2) at the two ends of the radiating pipes for assembly;
s4, assembling the core body and the water chamber: after the core body (1) is assembled, the main sheets (2) at the two end parts of the core body (1) are inserted into the clamping grooves (6) of the clamping parts (5) at the lower end parts of the water chamber (3) from one side, and the water chamber (3) is pushed to enable the center of the water chamber (3) to coincide with the center of the core body (1);
s5, pressing the core body and the water chamber: the core body (1) and the water chamber (3) are positioned through a positioning tool (7) in the extruding device, then the clamping part (5) and the main sheet (2) inside the clamping part are compressed through a compressing tool (8) controlled by an oil cylinder, and after the compression is finished, the assembling clearance between the main sheet (2) and the water chamber (3) is controlled within 0.08 mm;
s6, assembling the water chamber end plate: the water chamber end plate (4) is in interference fit with the inner section of the water chamber (3), and the water chamber end plate (4) is manually pressed into the inner section of the water chamber (3);
s7, assembling the reinforcing plate: inserting the two ends of the reinforcing plate into the strip holes in the main sheet (2);
s8, brazing and forming: and (3) performing powder spraying on the assembled core body (1), the water chamber (3), the water chamber end plate (4) and the reinforcing plate, placing the whole body into a brazing furnace for brazing after spraying, and then sequentially entering a preheating zone, a first-level heating zone, a second-level heating zone and a cooling zone of the brazing furnace for forming.
2. A process for manufacturing a radiator for an internal combustion engine according to claim 1, wherein: in the step S1, the middle substrate of the double-sided composite aluminum material is a 3003 aluminum alloy layer, the upper and lower composite layers of the aluminum material are 4045 or 4343 brazing layers, the tensile strength of the composite aluminum plate is 170 Mpa-210 Mpa, and the elongation after fracture is 8% -10%.
3. A process for manufacturing a radiator for an internal combustion engine according to claim 1, wherein: and in the step S5, the pressure of the oil cylinder is 8-10MPa, the oil cylinder is kept for 2-3 seconds after being pressed tightly, and the stroke of the oil cylinder is controlled through a stroke switch.
4. A process for manufacturing a radiator for an internal combustion engine according to claim 1, wherein: the lower tip outside of hydroecium (3) is equipped with joint portion (5) of a U type respectively, and the U type opening level of two joint portions (5) sets up to inboard symmetry, and joint portion (5) inside is equipped with a bar draw-in groove (6), and the degree of depth of draw-in groove (6) is 5mm, and the width of draw-in groove (6) is 2.1 ~ 2.15 mm.
5. A process for manufacturing a radiator for an internal combustion engine according to claim 1, wherein: the main sheet (2) is of a rectangular plate-shaped structure, and the thickness of the main sheet (2) is 2 mm.
6. A process for manufacturing a radiator for an internal combustion engine according to claim 1, wherein: the extrusion device comprises two positioning tools (7) which are arranged in an up-down symmetrical manner and two pressing tools (8) which are arranged in a left-right symmetrical manner; the positioning tool (7) is used for accurately positioning the assembled core body (1) and the water chamber (3); the pressing tool (8) is used for pressing the clamping portion (5) and the main piece (2) inside.
7. A process for manufacturing a radiator for an internal combustion engine according to claim 1, wherein: the positioning tool (7) is fixedly connected with a vertically arranged cylinder piston rod (9) through a mounting plate, and two sides of the cylinder piston rod (9) are respectively provided with a vertical guide rod (10); two sides of the end part of the positioning tool (7) are respectively provided with a strip-shaped positioning block (12), and the positioning blocks (12) are used for positioning the clamping parts (5).
8. A process for manufacturing a radiator for an internal combustion engine according to claim 1, wherein: the pressing tool (8) comprises a vertical plate (81), and the vertical plate (81) is fixedly connected with the end part of a horizontally arranged oil cylinder piston rod (11) through a mounting plate; two squeezing plates (82) which are horizontally arranged up and down are fixed on the inner side of the vertical plate (81), and a rectangular accommodating cavity (83) is arranged between the two squeezing plates (82); two end parts of the vertical plate (81) are respectively fixed with an ear plate (85), and a transverse guide rod penetrates through the ear plates (85).
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| CN112108844B (en) * | 2020-09-18 | 2022-04-12 | 常州秉瑞换热器科技有限公司 | Heat exchanger production process convenient for leak repairing |
| CN114571196B (en) * | 2022-05-06 | 2022-07-29 | 新乡市杰达精密电子器件有限公司 | Production process of membrane heater with hot water and steam dual-purpose function |
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| CN102536420A (en) * | 2012-01-13 | 2012-07-04 | 保定汇智达汽车散热器有限公司 | Radiator with aluminum water chamber and method for manufacturing water chamber |
| CN202985031U (en) * | 2012-12-28 | 2013-06-12 | 葛建锋 | Assembly mechanism on radiator core |
| CN104533594A (en) * | 2014-12-18 | 2015-04-22 | 广州坤江汽车配件工业制造有限公司 | Automobile radiator and manufacturing method thereof |
| CN105798610A (en) * | 2016-05-13 | 2016-07-27 | 广州市弘道汽车配件有限公司 | Radiator core assembling equipment |
| CN106475755A (en) * | 2017-01-04 | 2017-03-08 | 天津市旭通伟泰汽车部件有限公司 | A kind of automobile radiators processing technology |
| CN107979949A (en) * | 2017-11-13 | 2018-05-01 | 山东同创汽车散热装置股份有限公司 | The radiator and technique manufacturing method of install convenient and stabilized structure |
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