CN105665860A - Welding device and preparation method for welded metal honeycomb structure - Google Patents
Welding device and preparation method for welded metal honeycomb structure Download PDFInfo
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- CN105665860A CN105665860A CN201610164235.3A CN201610164235A CN105665860A CN 105665860 A CN105665860 A CN 105665860A CN 201610164235 A CN201610164235 A CN 201610164235A CN 105665860 A CN105665860 A CN 105665860A
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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
- B23K1/06—Soldering, e.g. brazing, or unsoldering making use of vibrations, e.g. supersonic vibrations
-
- 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
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
-
- 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
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/26—Selection of soldering or welding materials proper with the principal constituent melting at less than 400 degrees C
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/02—Honeycomb structures
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- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a welding device and a preparation method for a welded metal honeycomb structure. The welding device comprises a honeycomb core fixing device and a heating device used for melting solder. The heating device can move relative to the honeycomb core fixing device. The heating device comprises at least two heating rods which are arranged horizontally, and the heating rods are horizontally arranged on the same straight line at equal intervals. The preparation method comprises the step that a honeycomb core is welded by placing a lower tooth-shaped strip, prearranging the solder, placing the upper tooth-shaped strip and heating a welding surface. According to the welding device and the preparation method, the metal foil strips are subjected to fixed-point heating, the technique is simple, and the welded honeycomb core is high in strength and good in corrosion resistance; automatic production modes such as automatic displacement control, accurate positioning and accurate temperature control are adopted, so that the working period is short, and the efficiency is high.
Description
Technical field
The present invention relates to field of mechanical technique, particularly relate to welding plant and the preparation method of a kind of metal solder honeycomb structure.
Background technology
Honeycomb structure: being a kind of biomimetic features practical novel according to honeybee honeycomb, honeycomb structure refers to have the structure of sexangle honeycomb core sandwich structure. Honeycomb structure has very high flexural strength and structure to subtract heavy efficiency, and the performances such as excellent resistance to air loss and heat insulation, sound insulation, are therefore widely used in the fields such as space flight space flight, automobile, building decoration.
Honeycomb core: refer to the cellular material that or injection moulding cementing with foil or sheet material (such as paper, metal, plastics etc.) etc. is prepared into, honeycomb hole is positive hexagon mainly, also has the shapes such as rectangle, rhombus, sine-shaped, sinusoidal hexagon. Honeycomb core mainly bears shear-stress in honeycomb structure so that it is have high flexural stiffness.
Perforated plate: be have two layers of thin and strong panel material (such as sheet metal, plank, plastics etc.), therebetween thick layer and light honeycomb core is composited. Perforated plate is that honeycomb structure is the most typically applied.
Its inspiration of the honeycomb structure of industrial application derives from the honeycomb of the Nature, is the successful case of bionics Application Areas. Honeycomb structure is the maximum a kind of structure of specific tenacity in the material structure that finds up to now of the mankind, specific rigidity, and the material structure formed with it is light and handy, unique properties, and has good damping noise reduction performance. Honeycomb structure is widely used in the fields such as space flight space flight, communications and transportation, military affairs and daily life with the advantage of its uniqueness, particularly plays an important role in lightweight and energy-conserving and environment-protective.
The mode mainly cementing method of current existing production honeycomb core, the i.e. body material superposition of multilayer tablet, stickup, stretching, impregnation curing process, mainly there is following problem in the production technique of cementing honeycomb core: the intensity of (1) honeycomb core, the Working environment of work-ing life and permission to a great extent performance by glue caking agent affect, limit honeycomb structure and apply under the Service Environment of requirements at the higher level; (2) cementing method prepares honeycomb core, mostly there is the volatilization of organic solvent in its technological process, and staff's health and environment are brought very big harm;(3) cementation process process is complicated, and the cementation solidifying time is long, reduces efficiency, increases cost. Publication number is the Chinese patent of CN104129103A and CN204054775U, disclose a kind of method prepared by honeycomb core, the method by forming machine high-level efficiency, automatization, high-accuracy the metallic foil of high strength is prepared the profile of tooth band that angle is 120 °, then by cementing for profile of tooth band successively superposition formation honeycomb core or honeycomb structure. The method weak point is to adopt cementing connection, still there is the problem existing for traditional cementing honeycomb core structures.
Summary of the invention
It is desirable to provide the preparation method of a kind of metal solder honeycomb structure and device, it is possible to produce welded honeycomb structure.
For achieving the above object, the technical solution used in the present invention is as follows:
The welding plant of a kind of metal solder honeycomb structure, comprise honeycomb core stationary installation and the heating unit for melting solder, honeycomb core stationary installation comprises horizontally disposed worktable, the right baffle-plate vertically arranged and right baffle plate, worktable is arranged between right baffle-plate and right baffle plate, right baffle-plate and right baffle plate can move horizontally relative to worktable, described heating unit and worktable can relative movements, described heating unit comprises horizontally disposed heating rod, heating rod has at least two, and the spaced and parallel arrangement such as heating rod is point-blank.
Further, described honeycomb core stationary installation comprises horizontally disposed worktable, the right baffle-plate vertically arranged and right baffle plate, worktable is arranged between right baffle-plate and right baffle plate, and described right baffle-plate and right baffle plate can move horizontally relative to worktable, and described heating unit and worktable can relative movements.
Further, also comprise honeycomb core is play pressurization effect add pressing plate, add pressing plate and be located at above worktable, described in add pressing plate lower surface be provided with lug boss, the spaced and parallel arrangement such as described lug boss, the arrangement direction of lug boss is parallel with the arrangement direction of heating rod.
Further, also comprising ultrasonic unit, described ultrasonic unit comprises ultrasonic generator, transverter, horn, tool heads, and described ultrasonic generator and transverter electrically connect, and described transverter, horn, tool heads connect successively.
Further, welding plant also comprises upper rail and a column of lower guide rail, guide rail, heating unit back up pad and vertically setting, upper rail and lower guide rail are horizontally disposed with and are parallel to each other, guide rail is horizontally disposed with and is perpendicular to upper rail and lower guide rail, described heating unit back up pad, right baffle-plate and right baffle plate are set in parallel between upper rail and lower guide rail successively and are slidably connected with upper rail and lower guide rail, described worktable is located between two columns and is slidably connected with column, and described column and guide rail are slidably connected; Described heating unit is arranged in heating unit back up pad, and heating rod, towards worktable, described right baffle-plate and right baffle plate has for the through hole that heating rod passes.
Further, the pair of brackets also comprising base, being arranged on base, described getting on the right track is one to parallel straight line optical axis guide rail spaced apart from each other, described lower guide rail is one to parallel straight line optical axis guide rail spaced apart from each other, the two ends of described straight optical axis guide rail are separately fixed on support, being equipped with, on every bar straight optical axis guide rail, the slide block being slidably matched with it, described heating unit back up pad, right baffle-plate and right baffle plate are arranged on slide block.
Preferably, the cross section of described heating rod is positive hexagon. The end face of heating rod and the upper surface laminating of honeycomb hole.
Further, the movement of described ultrasonic unit, heating unit, right baffle-plate, right baffle plate and worktable is controlled by displacement control system.
Further, other face attachment thermal insulation layer of described heating rod except upper surface.
Preferably, the cross section of described through hole is square, and the quantity of through hole is not less than the quantity of heating rod.
Compared with prior art, apparatus of the present invention have following benefit effect:
1. tooth shape high strength metal foil band can be carried out fixed point heating by the present invention, melts solder, it is achieved welding;
2. adopt the method for ultrasonic unit assistant brazing effect to increase work efficiency, energy-conserving and environment-protective;
3. adopt row's formula heating system, additional insulated design, it is possible to realize the welding of monolayer honeycomb core fast;
4. the present invention can automatically command displacement, accurately location, accurate temperature controlling, automatic production, the work period is short, efficiency height, easily operate, it is possible to realizes batch production, meets industrial production demand, have suitability widely;
5. use the metal honeycomb core intensity height of this device welding, good corrosion resistance, life-span long, Working environment is required low, reliable operation;
6. can preparing various metal (such as magnesium alloy, aluminium alloy, titanium alloy etc.) material metal honeycomb core structures, applicable scope is wide.
The preparation method of metal solder honeycomb structure, comprises the following steps:
Step 1: by a profile of tooth band horizontal positioned on the table, as lower floor's profile of tooth band;
Step 2: place solder at the junction place to be welded of lower floor's profile of tooth band;
Step 3: be placed on lower floor's profile of tooth band by another profile of tooth band, as upper strata profile of tooth band, fixes upper and lower layer profile of tooth band by stationary installation, and upper strata profile of tooth band and lower floor's profile of tooth band are symmetrical up and down, and solder is clipped in the middle by the junction to be welded of upper and lower layer profile of tooth band;
Step 4: lower floor's profile of tooth band is carried out local heating, melts solder;
Step 5: stop heating, cooling brazed joint;
Repeating step 2-step 5, now the lower floor's profile of tooth band in step 2 is the upper strata profile of tooth band in step 4.
Further, in described step 4, adopt heating rod that lower floor's profile of tooth band is carried out local heating, a corresponding solder of heating rod.
Preferably, after described step 3, above honeycomb core structures, apply pressure, the junction to be welded of upper and lower layer profile of tooth band is fitted tightly.
Further, in described step 4, treat face of weld and apply ultrasonic wave, promote the wetting of solder and sprawl.
Further, in described step 3, stationary installation comprises the right baffle-plate of vertically setting and right baffle plate, and worktable is arranged between right baffle-plate and right baffle plate; Move horizontally right baffle-plate to fitting tightly with honeycomb core structures end face; The right baffle plate of level is to closely pasting with honeycomb core structures other end, thus is fixed by upper and lower layer profile of tooth band;
Carry out after described step 3 operating:
Moving horizontally heating rod, make heating rod pass right baffle-plate, honeycomb hole, the end of heating rod is overlapped on right baffle plate, and heating rod is positioned at below lower floor's profile of tooth band, and the travel direction of heating rod is identical with the travel direction of right baffle plate with right baffle-plate;
To add pressing plate is placed in honeycomb core structures, and the lower surface adding pressing plate and junction to be welded are fitted tightly;
The tool heads of mobile ultrasonic unit, pressing plate is in close contact with adding to make tool heads;
In described step 4, the Heating temperature of setting heating rod, the place to be welded of lower floor's profile of tooth band is heated by heating rod; Start ultrasonic unit, honeycomb core structures is applied ultrasonic wave effect;
In described step 5: move horizontally heating rod, heating rod is exited honeycomb core structures;
Moving down worktable, move horizontally worktable, the travel direction of worktable is vertical with the travel direction of heating rod.
Further, described solder is low-temperature brazing filler metal, and described heating and temperature control is within 400 DEG C.
Compared with prior art, the inventive method has following benefit effect:
1. adopt the metal honeycomb core intensity height of the inventive method welding, good corrosion resistance, Working environment is required low, reliable operation. Brazing is relative to cementing connection, and its joint can obtain higher intensity, higher work-ing life, and range of application widely. Soldering is applicable to connect component accurate, complicated, bigger connection area, and honeycomb structure is connected with very strong suitability. Adopting method for brazing to replace glue connection metal honeycomb core, technique is simple, it may be achieved while differing materials, and method for brazing prepares honeycomb core can realize batch production, meets industrial production demand;
2. solder adopts the low melting point brazing filler metal compositions useful of autonomous preparation, and welding temperature is low, and as magnesium alloy honeycomb core structure adopts self-control Mg-Zn-X brazing filler metal compositions useful, brazing temperature controls within 400 DEG C, and weld interval is short, and the impact of honeycomb core mother metal is less, intensity height.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment 1;
Fig. 2 is the structural representation of embodiment 2;
Fig. 3 is the structural representation of embodiment 3;
Fig. 4 is the vertical view of heating rod;
Fig. 5 is the front view of heating rod;
Fig. 6 is the left view of heating rod;
Fig. 7 is the upward view adding pressing plate;
Fig. 8 is the front view adding pressing plate;
Fig. 9 is the schema of preparation method of the present invention;
In figure: 1-heating unit 1,2-right baffle-plate, 3-add pressing plate, 4-worktable, the right baffle plate of 5-, 6-ultrasonic unit, 7-ultrasonic unit displacement control system, the right baffle plate displacement control system of 8-, 9-worktable displacement Controlling System, 10-right baffle-plate displacement control system, guide rail, 14-column, 15-heating unit back up pad, 16-base, 17-support, 18-slide block, 19-crossbeam, 20-through hole, 21-guide rail, 22-heating rod under 11-heating unit displacement control system, 12-upper rail, 13-.
Embodiment
In order to make the object of the present invention, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, the present invention is further elaborated.
Embodiment 1
As shown in Figure 1, the welding plant of metal solder honeycomb structure disclosed in the present embodiment, comprise honeycomb core stationary installation and the heating unit 1 for melting solder, heating unit 1 and honeycomb core stationary installation can relative movements, heating unit 1 comprises horizontally disposed heating rod 22, as shown in Figure 4,5, 6, the spaced and parallel arrangements such as heating rod 22 has at least two, heating rod 22 are point-blank. The honeycomb core structures size that the number of heating rod 22 and cross section size, length are produced by reality determines. This heating rod is evenly heated by electric heating, accurate temperature controlling, simultaneously sprays heat insulating coating in other faces except upper surface (face contacted with face of weld) except of heating rod 22, prevents not welding portion's mother metal and be influenced by heat and cause the degradation such as intensity. Owing to honeycomb hole in practice is that the use of just hexagonal honeycomb structure is more, as shown in Figure 5, the cross section of heating rod 22 is positive hexagon preferably, preferably, the height of heating rod 22 is equal with the height of honeycomb hole, fit on the upside of the end face of such heating rod 22 and honeycomb hole inwall, fit on the downside of the bottom surface of heating rod 22 and honeycomb hole inwall, can prevent from the extruding of honeycomb hole is out of shape by pressure process.
Further, honeycomb core stationary installation comprises horizontally disposed worktable 4, the right baffle-plate 2 vertically arranged and right baffle plate 5, worktable 4 is arranged between right baffle-plate 2 and right baffle plate 5, and right baffle-plate 2 and right baffle plate 5 can move horizontally relative to worktable 4, and heating unit 1 and worktable 4 can relative movements.The object of design is because adopting and weld by layer, it is necessary to moving up and down heating unit or worktable like this; In addition upper and lower two layers of honeycomb hole stagger, so after having welded one layer of honeycomb hole, it is necessary to translational worktable or heating unit. Heating rod can be designed to by concrete use: moving up and down, move left and right and move forward and backward, namely x, y, z tri-directions are all removable, and worktable does not move; Can also being designed to x direction and move by heating rod, table design is the movement in y, z direction. Preferably, worktable 4 can vertically move relative to right baffle-plate 2 and right baffle plate 5 and move horizontally, right baffle-plate 2 and right baffle plate 5 can move horizontally relative to worktable 4, the travel direction of worktable 4 is vertical with the travel direction of right baffle plate 5 with right baffle-plate 2, and heating unit 1 is consistent with the travel direction of right baffle-plate 2 and right baffle plate 5.
Using method, first by the shaping semi-hexagonal profile of tooth band of precise forming machine, the angle at each angle is 120 °. Workpiece is welded front cleaning, removes the greasy dirt of workpiece surface, impurity and surface film oxide so that it is surface quality reaches brazing requirements. Article 1 profile of tooth band is placed on the table 4, fixes with fixture, as the first layer profile of tooth band, then Article 2 profile of tooth band is accurately placed on corresponding position, as second layer profile of tooth band, second layer profile of tooth band and the first layer profile of tooth band formation the first layer honeycomb hole; Being cleaned by solder, it is to increase its surface quality, and will meet the requirements of solder and be placed on the junction of perforated plate, solder form is sheet, thread or paste, and the thickness of solder and specification of quality are determined according to corresponding soldering processes. Placing solder at each tooth top place of second layer profile of tooth band, then be placed on second layer profile of tooth band by Article 3 profile of tooth band, second layer profile of tooth band and third layer profile of tooth band form second layer honeycomb hole, move horizontally back up pad 2 and right baffle plate 5, are added by profile of tooth band and fasten; Moving horizontally heating unit 1, make heating rod 22 pierce in the first layer honeycomb hole, setting brazing temperature, starts heating unit, and temperature to be brazed rises to set temperature, brazing filler metal melts, forms brazed joint. Moving horizontally heating unit 1, exit heating rod 22, honeycomb core brazed joint cools or adopts other modes to cool fast in atmosphere. Repeating above-mentioned steps, complete the brazing of multilayer profile of tooth band, final production goes out satisfactory honeycomb core.
Preferably, welding plant also comprise honeycomb core is play pressurization effect add pressing plate 3, add pressing plate 3 and be located at above worktable 4; As shown in Figure 7,8, the lower surface adding pressing plate 3 is provided with lug boss, realize the pressurization effect that honeycomb core layer is connected face, the spaced and parallel arrangement such as lug boss, the arrangement direction of lug boss is parallel with the arrangement direction of heating rod 22, the end face of lug boss is plane, and the size of lug boss is mated mutually with the connection face size of adjacent layers profile of tooth band. Preferably, the cross section of lug boss is rectangle, and the length and width of lug boss, height and adjacent spaces distance are suitable with the size of honeycomb hole. After heating rod 22 pierces into honeycomb hole, adding pressing plate 3 and be pressed in honeycomb core structures, the boss adding pressing plate is in the teeth groove of profile of tooth band.
When heating rod 22 pierces into after in the first layer honeycomb hole, being placed on adding pressing plate 3 on the profile of tooth band of top layer, the tooth end face adding pressing plate 3 and surface to be welded are fitted tightly, apply pressure, pressure size is determined according to concrete soldering processes by force value.
Embodiment 2
As shown in Figure 2, the difference of the present embodiment and embodiment 4 is: welding plant also comprises ultrasonic unit 6, ultrasonic unit 6 comprises ultrasonic generator, transverter, horn, tool heads, and ultrasonic generator and transverter electrically connect, and transverter, horn, tool heads connect successively.Auxiliary water cooling system transverter temperature can be prevented too high and damage simultaneously. After placing and adding pressing plate 3, the tool heads of ultrasonic unit 6 is made to move to honeycomb core central position, and pressing plate is in close contact with adding to make tool heads. When starting heating unit 1, start ultrasonic unit 6, honeycomb core is applied hyperacoustic effect, promote the wetting of solder and sprawl. Preferably, the movement of ultrasonic unit 6, heating unit 1, right baffle-plate 2, right baffle plate 5 and worktable 4 is controlled by displacement control system.
Embodiment 3
As shown in Figure 3, the difference of the present embodiment and embodiment 4 or embodiment 5 is: welding plant also comprises upper rail 12 and lower guide rail 13, guide rail 21, , heating unit back up pad 15 and the column 14 vertically arranged, upper rail 12 and lower guide rail 13 are horizontally disposed with and are parallel to each other, guide rail 21 is horizontally disposed with and is perpendicular to upper rail 12 and lower guide rail 13, heating unit back up pad 15, right baffle-plate 2 and right baffle plate 5 are set in parallel between upper rail 12 and lower guide rail 13 successively and are slidably connected with upper rail 12 and lower guide rail 13, worktable 4 is located between two columns 14 and is slidably connected with column 14, column 14 and guide rail 21 are slidably connected, the slip direction of worktable 4 is vertical with the slip direction of column 14, preferably, being provided with the crossbeam 19 being slidably matched with it between two root posts 14, the slip direction of crossbeam 19 is vertical with the slip direction of column 14, and worktable 4 is arranged on crossbeam 19, locking limit guide rail slide block and guide rail 21 are slidably matched, and column 9 is arranged on locking limit guide rail slide block. heating unit 1 is arranged in heating unit back up pad 15, heating rod 22 vertically worktable, right baffle-plate 2 and right baffle plate 5 has for the through hole 20 that heating rod 22 passes. through hole 20 can be 1 strip hole, and namely all heating rods 22 all pass from this hole, through hole 20 can also be multiple independent holes, and namely a heating rod 22 passes from a hole, and the quantity of through hole 20 is not less than the quantity of heating rod 22. preferably, the cross section of through hole 20 is square. in actual use, the position of through hole 20 is mated with heating rod 22 phase, and the lower surface of heating rod 22 and the lower surface of through hole 20 fit tightly, and are played a supportive role by heating rod 22.
Further, the pair of brackets 17 that welding plant also comprises base 16, is arranged on base 16, get on the right track 12 is one to parallel straight line optical axis guide rail spaced apart from each other, lower guide rail 13 is also one to parallel straight line optical axis guide rail spaced apart from each other, the two ends of straight optical axis guide rail are separately fixed on support 17, being equipped with, on every bar straight optical axis guide rail, the slide block 18 being slidably matched with it, heating unit back up pad 15, right baffle-plate 2 and right baffle plate 5 are arranged on slide block 18. Guide rail 21 is straight optical axis guide rail preferably. Further, the movement of ultrasonic unit, heating unit back up pad 15, right baffle-plate 2, right baffle plate 5 and worktable 4 is controlled by displacement control system. Ultrasonic unit 6 is controlled by ultrasonic unit displacement control system 7; Right baffle-plate 2 is controlled by right baffle-plate displacement control system 10, and right baffle plate 5 is controlled by right baffle plate displacement control system 8, and worktable 4 is controlled by worktable displacement Controlling System 9, and heating unit back up pad 15 is controlled by heating unit displacement control system 11.
Embodiment 4
The preparation method of metal solder honeycomb structure, comprises the following steps:
Step 1: lie in a horizontal plane on worktable 4 by a profile of tooth band, as lower floor's profile of tooth band;
Step 2: place solder at the junction place to be welded of lower floor's profile of tooth band;
Step 3: be placed on lower floor's profile of tooth band by another profile of tooth band, as upper strata profile of tooth band, fixes upper and lower layer profile of tooth band by stationary installation, and upper strata profile of tooth band and lower floor's profile of tooth band are symmetrical up and down, and solder is clipped in the middle by the junction to be welded of upper and lower layer profile of tooth band;
Step 4: lower floor's profile of tooth band is carried out local heating, melts solder;
Step 5: stop heating, cooling brazed joint;
Repeating step 2-step 5, now the lower floor's profile of tooth band in step 2 is the upper strata profile of tooth band in step 4.
Further, in step 4, adopting heating rod 22 to treat face of weld and carry out local heating, a corresponding solder of heating rod 22, the spaced and parallel arrangements such as heating rod 22 has at least two, heating rod 22 are point-blank. Preferably, face of weld is only heated by heating rod, and other faces of honeycomb hole are done heat insulation process. Other faces of honeycomb hole are done heat insulation process and can spray heat insulating coating in heating rod 22 other faces except upper surface (face contacted with face of weld), prevent not welding portion's mother metal and be influenced by heat and cause the degradation such as intensity.
Preferably, after described step 3, applying pressure above honeycomb core structures, the junction to be welded of upper and lower layer profile of tooth band is fitted tightly, pressure size is determined according to concrete soldering processes. Can select and add pressing plate 3 to apply pressure, add pressing plate 3 and be located at above worktable 4; As shown in Figure 7,8, the lower surface adding pressing plate 3 is provided with lug boss, realize the pressurization effect that honeycomb core layer is connected face, the spaced and parallel arrangement such as lug boss, the arrangement direction of lug boss is parallel with the arrangement direction of heating rod 22, the end face of lug boss is plane, and the size of lug boss is mated mutually with the connection face size of adjacent layers profile of tooth band. Preferably, the cross section of lug boss is rectangle, and the length and width of lug boss, height and adjacent spaces distance are suitable with the size of honeycomb hole. After heating rod 22 pierces into honeycomb hole, adding pressing plate 3 and be pressed in honeycomb core structures, the boss adding pressing plate is in the teeth groove of profile of tooth band.
Preferably, in step 4, face of weld is applied ultrasonic wave, promote the wetting of solder and sprawl. Can selecting ultrasonic unit 6 that face of weld is applied ultrasonic wave, ultrasonic unit 6 comprises ultrasonic generator, transverter, horn, tool heads, and ultrasonic generator and transverter electrically connect, and transverter, horn, tool heads connect successively. Auxiliary water cooling system transverter temperature can be prevented too high and damage simultaneously. After placing and adding pressing plate 3, the tool heads of ultrasonic unit 6 is made to move to honeycomb core central position, and pressing plate is in close contact with adding to make tool heads. When starting heating unit 1, start ultrasonic unit 6.
Profile of tooth band is first by the shaping semi-hexagonal profile of tooth band of precise forming machine, and the angle at each angle is 120 °. Workpiece is welded front cleaning, removes the greasy dirt of workpiece surface, impurity and surface film oxide so that it is surface quality reaches brazing requirements.
Further, solder adopts the low melting point brazing filler metal compositions useful of autonomous preparation, and welding temperature is low, such as welding magnesium alloy metal honeycomb core, adopts self-control Mg-Zn-X brazing filler metal compositions useful, and wherein X represents Sn, Al or rare earth element; Brazing temperature controls within 400 DEG C, and weld interval is short, and the impact of honeycomb core mother metal is less, intensity height. For improving solder surface quality, solder cleans, and will meet the requirements of solder and be placed on the junction of profile of tooth band, and solder form is sheet, thread or paste, and the thickness of solder and specification of quality are determined according to corresponding soldering processes.
Embodiment 5
The difference of the present embodiment and embodiment 1 is: honeycomb core stationary installation comprises the through hole 20 having confession heating rod 22 on horizontally disposed worktable 4, the right baffle-plate 2 vertically arranged and right baffle plate 5, right baffle-plate 2 and right baffle plate 5 and passing. Profile of tooth band is lain in a horizontal plane in worktable 4 by step 1, in step 3, moves horizontally right baffle-plate 2 and fit tightly to the end face with honeycomb core structures, ensure the concordant degree of the end face of honeycomb core; Move horizontally right baffle plate to fit tightly to the other end with honeycomb core structures, ensure the concordant degree of the end face of honeycomb core. Further, in step 4, heating unit 1 is moved in X direction, heating rod 22 passes right baffle-plate 2, honeycomb hole from through hole 20, and is finally overlapped on right baffle plate 5.
In step 3, stationary installation comprises right baffle-plate 2 and the right baffle plate 5 of vertically setting, and wherein worktable 4 is arranged between right baffle-plate 2 and right baffle plate 5; Move horizontally right baffle-plate 2 to fit tightly to honeycomb core structures end face; The right baffle plate 5 of level closely pastes to honeycomb core structures other end, thus is fixed by upper and lower layer profile of tooth band;
Carry out after described step 3 operating:
Moving horizontally heating rod 22, make heating rod 22 through right baffle-plate 2, honeycomb hole, the end of heating rod 22 is overlapped on right baffle plate 5, and heating rod 22 is positioned at below lower floor's profile of tooth band, and the travel direction of heating rod 22 is identical with the travel direction of right baffle plate 5 with right baffle-plate 2;
To add pressing plate 3 is placed in honeycomb core structures, and the lower surface adding pressing plate 3 and junction to be welded are fitted tightly;
The tool heads of mobile ultrasonic unit 6, pressing plate 3 is in close contact with adding to make tool heads;
In described step 4, the Heating temperature of setting heating rod, the place to be welded of lower floor's profile of tooth band is heated by heating rod 22; Start ultrasonic unit 6, honeycomb core structures is applied ultrasonic wave effect;
In described step 5: move horizontally heating rod 22, heating rod 22 is exited honeycomb core structures;
Moving down worktable 4, move horizontally worktable 4, the travel direction of worktable 4 is vertical with the travel direction of heating rod 22.
Embodiment 6
The difference of the present embodiment and embodiment 2 is: the movement of ultrasonic unit, heating rod 22, right baffle-plate 2, right baffle plate 5 and worktable 4 is controlled by displacement control system, automatically controls it by Controlling System and moves, and heating unit 1 comprises heating rod 22. Heating unit 1 is arranged in heating unit back up pad 15, concrete, and ultrasonic unit 6 is controlled by ultrasonic unit displacement control system 7; Right baffle-plate 2 is controlled by right baffle-plate displacement control system 10, and right baffle plate 5 is controlled by right baffle plate displacement control system 8, and worktable 4 is controlled by worktable displacement Controlling System 9, and heating unit back up pad 15 is controlled by heating unit displacement control system 11.
Composition graphs 9, illustrates the inventive method in detail:
Step 1: lie in a horizontal plane on worktable 4 by a profile of tooth band, as lower floor's profile of tooth band;
Step 2: place solder at the junction place to be welded of lower floor's profile of tooth band;
Step 3: another profile of tooth band is placed on lower floor's profile of tooth band, as upper strata profile of tooth band, upper strata profile of tooth band and lower floor's profile of tooth band are symmetrical up and down, and solder is clipped in the middle by the junction to be welded of upper and lower layer profile of tooth band;
Start right baffle-plate displacement control system 10, right baffle-plate 2 is moved in X direction, to fitting tightly with honeycomb core structures end face; Start right baffle plate displacement control system 8, right baffle plate 5 is moved in X direction, to fitting tightly with honeycomb core structures other end;
Starting heating unit displacement control system 11, heating unit 1 is moved in X direction, heating rod 22 passes right baffle-plate 2, honeycomb hole from through hole 20, and is finally overlapped on right baffle plate 5, and heating rod is positioned at the lower section of junction to be welded.When welding the profile of tooth band of the first layer, worktable upper surface can be designed to tooth shape or as shown in Figure 1, a bottom profile of tooth band is placed again below lower floor's profile of tooth band, as auxiliary profile of tooth band, lower floor's profile of tooth band and auxiliary profile of tooth band form honeycomb hole, weld the first layer profile of tooth band time, heating rod can wear from this honeycomb hole into.
To add pressing plate 3 is placed on honeycomb core, and the tooth end face adding pressing plate 3 and surface to be welded are fitted tightly, and applies pressure, and pressure size is determined according to concrete soldering processes by force value;
Starting ultrasonic unit displacement system 7, make ultrasonic unit 6 move to tool heads along Y-direction and move to honeycomb core central position, moved along Z-direction by ultrasonic unit 6 subsequently, pressing plate 3 is in close contact with adding to make tool heads;
Step 4: starting heating unit 1, and set brazing temperature, temperature to be brazed rises to set temperature, brazing filler metal melts. The junction to be welded of upper and lower layer profile of tooth band is carried out local heating by heating dress rod.
Starting ultrasonic unit 6, apply ultrasonic wave effect, fusing solder and mother metal reaction, form brazed joint;
Step 5: starting heating unit displacement control system 11, make heating rod 22 exit honeycomb hole, honeycomb core brazed joint cools or adopt other modes to cool fast in atmosphere.
Start ultrasonic unit displacement system 7, ultrasonic unit 6 is moved along Z-direction and Y-direction successively, finally makes ultrasonic unit 6 return to original position;
Starting right baffle-plate displacement control system 10 and right baffle plate displacement control system 8, it is returned to original position to make right baffle-plate 2 and right baffle plate 5;
Starting worktable displacement Controlling System 9, make the worktable 4 of carrying honeycomb core along Z-direction decline, shift length is determined according to weld width and honeycomb core born of the same parents' length of side. Secondly, worktable 4 is moved along Y-direction, owing to honeycomb hole in the present embodiment is positive hexagon, so worktable 4 is 1.5 times of honeycomb core born of the same parents' length of sides along the displacement of Y-direction.
Repeating step 2-step 5, welds out the honeycomb core determining size by layer. Now the lower floor's profile of tooth band in step 2 is the upper strata profile of tooth band in step 4.
In step 1, first place a profile of tooth band and fix with fixture on the table, as lower floor's profile of tooth band; Lower floor's profile of tooth band is placed a profile of tooth band again, as upper strata profile of tooth band. Upper strata profile of tooth band and lower floor's profile of tooth band are symmetrical up and down to be placed thus forms honeycomb hole.
This welding process is fixed by lower floor's profile of tooth band, preseting solder, placement upper strata profile of tooth band, face of weld heat, apply ultrasonic wave effect etc., has welded satisfactory honeycomb core. Profile of tooth strip is placed on the worktable of accurate level of control position and vertical position, and worktable is by moving a vertical section distance under displacement control system and move horizontally a pitch, and rhythm links with welding to swing frequency, it is achieved automatic welding; Heating rod returns heating location, places new solder and profile of tooth band, enters next layer of welding assembly, it is achieved the welding of multi-layer honeycomb core. Solder be specialized designs, by melting, forge, be rolled into foil or thread or paste, it is preset at honeycomb core to be welded surface, concrete size and quality are relevant to honeycomb born of the same parents' size, and then accurately cloth is placed on through the specific position heated, temperature reaches the above-mentioned sawtooth strip determining temperature. Solder density is little, and solder fusing point is low, strength of joint height, good corrosion resistance. Welding process carries out under ultrasonic assistant effect, by displacement control system, tool heads surface is contacted with the institute face of weld, applies ultrasonic wave effect, it is achieved ultrasonic assistant welding.Connected by welding process and substitute cementing connection, can greatly improve the intensity of honeycomb core, solidity to corrosion and weathering resistance.
In the inventive method, heating system is type of heating in electrothermic type, also realizes by other type of heating such as electromagnetic induction heating simultaneously. Welding system is ultrasonic assistant welding system under atmospheric environment, also can adopt brazing flux simultaneously or weld in the inferior realization of protective atmosphere.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art can make various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection domain that all should belong to the claim appended by the present invention.
Claims (15)
1. the welding plant of a metal solder honeycomb structure, it is characterized in that: comprise honeycomb core stationary installation and the heating unit (1) for melting solder, described honeycomb core stationary installation comprises horizontally disposed worktable (4), the right baffle-plate (2) vertically arranged and right baffle plate (5), worktable (4) is arranged between right baffle-plate (2) and right baffle plate (5), described right baffle-plate (2) and right baffle plate (5) can move horizontally relative to worktable (4), described heating unit (1) and worktable (4) can relative movements, described heating unit (1) comprises horizontally disposed heating rod (22), heating rod (22) has at least two, the spaced and parallel arrangements such as heating rod (22) are point-blank.
2. welding plant according to claim 1, it is characterized in that: also comprise honeycomb core is play pressurization effect add pressing plate (3), add pressing plate (3) and it is located at worktable (4) top, the described lower surface adding pressing plate (3) is provided with lug boss, the spaced and parallel arrangement such as described lug boss, the arrangement direction of lug boss is parallel with the arrangement direction of heating rod (22).
3. welding plant according to claim 2, it is characterized in that: also comprise ultrasonic unit (6), described ultrasonic unit (6) comprises ultrasonic generator, transverter, horn, tool heads, described ultrasonic generator and transverter electrically connect, and described transverter, horn, tool heads connect successively.
4. welding plant according to claim 1,2 or 3, it is characterized in that: also comprise upper rail (12) and a column (14) of lower guide rail (13), guide rail (21), heating unit back up pad (15) and vertically setting, upper rail (12) and lower guide rail (13) are horizontally disposed with and are parallel to each other, and guide rail (21) is horizontally disposed with and is perpendicular to upper rail (12) and lower guide rail (13);
Described heating unit back up pad (15), right baffle-plate (2) and right baffle plate (5) are set in parallel between upper rail (12) and lower guide rail (13) successively and are slidably connected with upper rail (12) and lower guide rail (13), described worktable (4) is located between two columns (14) and is slidably connected with column (14), and described column (14) and guide rail (21) are slidably connected; Described heating unit (1) is arranged in heating unit back up pad (15), heating rod (22) has for the through hole (20) that heating rod (22) passes on worktable (4), described right baffle-plate (2) and right baffle plate (5).
5. welding plant according to claim 4, it is characterized in that: also comprise base (16), the pair of brackets (17) being arranged on base (16), described get on the right track (12) are one to parallel straight line optical axis guide rail spaced apart from each other, described lower guide rail (13) is one to parallel straight line optical axis guide rail spaced apart from each other, the two ends of described straight optical axis guide rail are separately fixed on support (17), every bar straight optical axis guide rail is equipped with the slide block (18) being slidably matched with it, described heating unit back up pad (15), right baffle-plate (2) and right baffle plate (5) are arranged on slide block (18).
6. welding plant according to claim 4, it is characterised in that: the cross section of described heating rod (22) is positive hexagon.
7. welding plant according to claim 3, it is characterised in that: the movement of described ultrasonic unit, heating unit (1), right baffle-plate (2), right baffle plate (5) and worktable (4) is controlled by displacement control system.
8. welding plant according to claim 1, it is characterised in that: other face attachment thermal insulation layer of described heating rod (22) except upper surface.
9. welding plant according to claim 4, it is characterised in that: the cross section of described through hole (20) is square, and the quantity of through hole (20) is not less than the quantity of heating rod (22).
10. adopt welding plant described in claim 1-9 any claim to prepare the method for honeycomb structure, it is characterised in that: comprise the following steps:
Step 1: a profile of tooth band is lain in a horizontal plane on worktable (4), as lower floor's profile of tooth band;
Step 2: place solder at the junction place to be welded of lower floor's profile of tooth band;
Step 3: be placed on lower floor's profile of tooth band by another profile of tooth band, as upper strata profile of tooth band, fixes upper and lower layer profile of tooth band by stationary installation, and upper strata profile of tooth band and lower floor's profile of tooth band are symmetrical up and down, and solder is clipped in the middle by the junction to be welded of upper and lower layer profile of tooth band;
Step 4: lower floor's profile of tooth band is carried out local heating, melts solder;
Step 5: stop heating, cooling brazed joint;
Repeating step 2-step 5, now the lower floor's profile of tooth band in step 2 is the upper strata profile of tooth band in step 4.
11. methods according to claim 10, it is characterised in that: in described step 4, adopt heating rod (22) that lower floor's profile of tooth band is carried out local heating, a corresponding solder of heating rod (22).
12. methods according to claim 10 or 11, it is characterised in that: after described step 3, above honeycomb core structures, apply pressure, the junction to be welded of upper and lower layer profile of tooth band is fitted tightly.
13. preparation methods according to claim 12, it is characterised in that: in described step 4, treat face of weld and apply ultrasonic wave.
14. methods according to claim 13, it is characterised in that:
In described step 3, stationary installation comprises right baffle-plate (2) and the right baffle plate (5) of vertically setting, and worktable (4) is arranged between right baffle-plate (2) and right baffle plate (5); Move horizontally right baffle-plate (2) to fitting tightly with honeycomb core structures end face; The right baffle plate of level (5) is to fitting tightly with honeycomb core structures other end, thus is fixed by upper and lower layer profile of tooth band;
Carry out after described step 3 operating:
Move horizontally heating rod (22), make heating rod (22) through right baffle-plate (2), honeycomb hole, the end of heating rod (22) is overlapped on right baffle plate (5), heating rod (22) is positioned at below lower floor's profile of tooth band, and the travel direction of heating rod (22) is identical with the travel direction of right baffle plate (5) with right baffle-plate (2);
To add pressing plate (3) is placed in honeycomb core structures, and the lower surface adding pressing plate (3) and junction to be welded are fitted tightly; The tool heads of mobile ultrasonic unit (6), pressing plate (3) is in close contact with adding to make tool heads;
In described step 4, the Heating temperature of setting heating rod, the place to be welded of lower floor's profile of tooth band is heated by heating rod (22); Start ultrasonic unit (6), honeycomb core structures is applied ultrasonic wave effect;
In described step 5: move horizontally heating rod (22), heating rod (22) is exited honeycomb core structures;
Moving down worktable (4), move horizontally worktable (4), the travel direction of worktable (4) is vertical with the travel direction of heating rod (22).
15. methods according to claim 10 or 14, it is characterised in that: described solder is low-temperature brazing filler metal, and heating and temperature control is within 400 DEG C.
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| CN106425001A (en) * | 2016-09-02 | 2017-02-22 | 深圳市新益昌自动化设备有限公司 | Rail-type welding device and LED (Light Emitting Diode) reflow welding machine |
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| TWI674390B (en) * | 2018-07-09 | 2019-10-11 | 天樂國際有限公司 | Honeycomb thermal gluing machine |
| CN110666451A (en) * | 2019-09-18 | 2020-01-10 | 南京航空航天大学 | Preparation method of metal honeycomb core and device for realizing method |
| CN111283380A (en) * | 2020-04-03 | 2020-06-16 | 株洲时代电子技术有限公司 | Steel rail welding operation method at low temperature |
| CN114393269A (en) * | 2022-02-12 | 2022-04-26 | 代堂艳 | Plate gluing machine for brazing silencing materials |
| CN116021102A (en) * | 2022-12-13 | 2023-04-28 | 郑州机械研究所有限公司 | Large-thickness high-strength aluminum alloy honeycomb plate and preparation method thereof |
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| CN111283380B (en) * | 2020-04-03 | 2021-06-08 | 株洲时代电子技术有限公司 | Steel rail welding operation method at low temperature |
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| CN116021102B (en) * | 2022-12-13 | 2023-10-17 | 郑州机械研究所有限公司 | Large-thickness high-strength aluminum alloy honeycomb plate and preparation method thereof |
| CN117206675A (en) * | 2023-09-28 | 2023-12-12 | 山东鸣途精密机械有限公司 | Microporous honeycomb assembling and laser welding method |
| CN117206675B (en) * | 2023-09-28 | 2024-05-31 | 山东鸣途精密机械有限公司 | Microporous honeycomb assembling and laser welding method |
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Effective date of registration: 20181210 Address after: 611200 Chengzhou Economic Development Zone, Chengdu City, Sichuan Province Patentee after: Chongzhou Tianzhi lighter manufacturing Co. Ltd. Address before: 610000 Industrial Concentration Zone of Southwest Airport Economic Development Zone, Shuangliu County, Chengdu City, Sichuan Province (West Airport Science and Technology Enterprise Incubation Park) Patentee before: CHENGDU TIANZHI LIGHTWEIGHT TECHNOLOGY CO., LTD. |
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