CN116423004B - Vacuum brazing furnace for small metal parts - Google Patents
Vacuum brazing furnace for small metal parts Download PDFInfo
- Publication number
- CN116423004B CN116423004B CN202310700184.1A CN202310700184A CN116423004B CN 116423004 B CN116423004 B CN 116423004B CN 202310700184 A CN202310700184 A CN 202310700184A CN 116423004 B CN116423004 B CN 116423004B
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- Prior art keywords
- brazing furnace
- rotating
- frame
- vacuum
- furnace
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- 238000005219 brazing Methods 0.000 title claims abstract description 111
- 239000002184 metal Substances 0.000 title claims abstract description 50
- 230000007246 mechanism Effects 0.000 claims abstract description 40
- 230000001681 protective effect Effects 0.000 claims abstract description 31
- 230000001105 regulatory effect Effects 0.000 claims abstract description 16
- 238000001125 extrusion Methods 0.000 claims description 34
- 230000006835 compression Effects 0.000 claims description 28
- 238000007906 compression Methods 0.000 claims description 28
- 238000007789 sealing Methods 0.000 claims description 16
- 239000012535 impurity Substances 0.000 claims description 14
- 238000007790 scraping Methods 0.000 claims description 13
- 238000004140 cleaning Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 230000009471 action Effects 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 26
- 238000003466 welding Methods 0.000 description 22
- 239000000945 filler Substances 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910001338 liquidmetal Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/008—Soldering within a furnace
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention relates to the technical field of vacuum brazing, in particular to a vacuum brazing furnace for small metal parts, which comprises a support frame, a brazing furnace, a rotating cover, an inflating device and a moving mechanism, wherein the support frame is connected with the brazing furnace, the inflating device for inflating protective gas is arranged on the brazing furnace, the rotating cover is rotatably connected on the brazing furnace, and the moving mechanism for moving a sliding plate is arranged on the brazing furnace. The locking block can lock the rotating cover, the brazing furnace reaches proper vacuum degree under the action of the vacuumizing assembly, the heater is controlled to heat and braze, heated and expanded protective gas enters the collecting box to enable the piston plate and the screw rod to move right and left, the sliding plate and the small metal part can reciprocate left and right, the small metal part is heated uniformly, the vacuum brazing effect is improved, and after the small metal part is replaced, the first regulating valve is controlled to enable the protective gas in the collecting box to enter the brazing furnace, so that the protective gas is reused.
Description
Technical Field
The invention relates to the technical field of vacuum brazing, in particular to a vacuum brazing furnace for small metal parts.
Background
Vacuum brazing is to heat metal parts in a vacuum chamber, and is mainly used for welding products with high quality and oxidizable materials, metal fillers are generally required to be attached to the joint surfaces of the metal parts before vacuum brazing, protective gas such as nitrogen is filled into the metal parts under vacuum, and then the metal fillers are heated and melted, and capillary action is generated between melted liquid metal and small-sized metal parts, so that the brazing effect is achieved.
The patent publication No. CN217551367U discloses a precision vacuum brazing furnace, which comprises a furnace body, wherein an inflation system is arranged at the left end of the furnace body, a material changing port is arranged at the right end of the furnace body, a sealing block is arranged in the material changing port, a fixing mechanism for positioning the sealing block is connected with the right end of the furnace body, a sealing sleeve is fixedly connected with the inside of the material changing port, and the inner side wall of the sealing sleeve is in sealing sliding fit with the outer side wall of the sealing block.
The above patent is to fix the metal part through the fixing seat, but the position of the metal part is under the fixed condition in the vacuum brazing process, and the heating spray gun also carries out heating treatment on the metal part at the fixed position, which easily causes uneven heating of the metal part and influences the vacuum brazing effect.
Disclosure of Invention
The invention aims to overcome the defects that the metal part is easy to be heated unevenly and the vacuum brazing effect is affected because the position of the metal part is fixed when the metal part is subjected to vacuum brazing in the prior art.
The technical proposal is as follows: the utility model provides a vacuum brazing furnace of small-size metal parts, including the support frame, braze welding furnace and relief valve, be connected with the braze welding furnace on the support frame, install the relief valve on the braze welding furnace, still including rotating the lid, aerating device, the heater, the sliding plate, the evacuation subassembly, collecting mechanism and moving mechanism, install the aerating device who is used for filling the shielding gas on the braze welding furnace, the last rotation of braze welding furnace is connected with the rotating lid, the one side that the rotating lid is close to the braze welding furnace is equipped with rubber seal, braze welding furnace internally mounted has the heater that is used for heating small-size metal parts, the sliding plate that is used for placing small-size metal parts that the bottom slidingtype is connected with the level setting in the braze welding furnace, it has a plurality of through-hole to open on the sliding plate, be equipped with the evacuation subassembly that is used for making the braze welding furnace be in the vacuum state on the braze welding furnace, be equipped with collecting mechanism on the braze welding furnace, be equipped with the moving mechanism that is used for making the sliding plate remove on the braze welding furnace.
Preferably, the vacuumizing assembly comprises a vacuum pump, a vacuum gauge and a control box, the vacuum pump is arranged on the brazing furnace, the vacuum gauge for detecting the vacuum degree is arranged on the brazing furnace, the control box is connected to the supporting frame, and the vacuum pump and the vacuum gauge are electrically connected with the control box.
Preferably, the collecting mechanism comprises a collecting box, a piston plate, a second compression spring, a first regulating valve, a connecting cylinder, a one-way pipe, a sliding plug and a third compression spring, wherein the collecting box for collecting protective gas is connected to the top of the brazing furnace, the piston plate is connected to the inside of the collecting box in a sliding manner, the piston plate is in sealing contact with the collecting box, the second compression spring is connected between the piston plate and the collecting box, the first regulating valve is arranged between the collecting box and the brazing furnace, the connecting cylinder is connected to the brazing furnace, the one-way pipe is communicated between the connecting cylinder and the collecting box, the sliding plug is connected to the inside of the connecting cylinder in a sliding manner, and the third compression spring is connected between the sliding plug and the connecting cylinder.
Preferably, the moving mechanism comprises a connecting rod, a telescopic sleeve, a screw rod, a connecting frame, an extrusion frame, a first toothed ring, a first gear, a first compression spring and an extrusion rod, wherein the connecting rod is connected to the piston plate and is connected with the collecting box in a sliding mode, the connecting rod extends out of the collecting box and is connected with the brazing furnace in a sliding mode, the telescopic sleeve is connected between the connecting rod and the brazing furnace, the screw rod is connected to the connecting rod, the screw rod is located inside the brazing furnace, the connecting frame is connected to the connecting frame in a rotating mode, the extrusion rod is connected to the sliding plate in a rotating mode, the extrusion frame is intermittently contacted with the extrusion rod, the first toothed ring is connected to the extrusion frame in a rotating mode, the first gear is connected to the screw rod in a threaded mode, the first gear is meshed with the first toothed ring, and the first compression spring is connected between the sliding plate and the brazing furnace.
Preferably, the locking mechanism comprises a motor, a second gear, a rotating ring, a second toothed ring and locking blocks, wherein the motor is connected to the brazing furnace, the second gear is connected to an output shaft of the motor through a coupling, the rotating ring is rotatably connected to the brazing furnace, the second toothed ring is connected to the rotating ring, the second gear is meshed with the second toothed ring, a plurality of locking blocks used for locking the rotating cover are connected to the rotating ring at intervals in the circumferential direction, and the locking blocks are in contact with the rotating cover.
Preferably, the cleaning device comprises a cleaning mechanism, the cleaning mechanism comprises an air pump, a connecting box, a connecting pipe, a second regulating valve, a collecting frame, a rotating cylinder, a scraping plate, a rotating fan, a filter screen and a rotating frame, wherein the air pump is arranged on a brazing furnace, the connecting box is connected on the brazing furnace, the connecting pipe is communicated between the connecting box and the brazing furnace, the collecting frame for collecting impurities is connected on the connecting pipe in a sliding sealing manner, the second regulating valve is arranged between the connecting box and the brazing furnace, the rotating frame is connected inside the connecting pipe in a rotating manner, the rotating fan is connected on the rotating frame, the rotating cylinder with a plurality of round holes is connected on the rotating frame, the filter screen is connected on the connecting pipe, the scraping plate for scraping the impurities is connected on the connecting pipe in an inner connecting manner, and the rotating cylinder rotates to be contacted with the scraping plate.
Preferably, the edge of one side of the extrusion frame, which is close to the extrusion rod, is in a reciprocating concave-convex shape.
Preferably, a plurality of protruding parts are arranged on the rotating cover at intervals in the circumferential direction, and the locking blocks are in one-to-one correspondence with the protruding parts.
The invention has the beneficial effects that: 1. the locking block can lock the rotating cover, the brazing furnace reaches proper vacuum degree under the action of the vacuumizing assembly, the heater is controlled to heat and braze, heated and expanded protective gas enters the collecting box to enable the piston plate and the screw rod to move right and left, the sliding plate and the small metal part can reciprocate left and right, the small metal part is heated uniformly, the vacuum brazing effect is improved, and after the small metal part is replaced, the first regulating valve is controlled to enable the protective gas in the collecting box to enter the brazing furnace, so that the protective gas is reused.
2. According to the invention, the protective gas in the brazing furnace is pumped into the connecting pipe by controlling the air pump, the air flow can push the rotating fan to rotate to drive the rotating frame and the rotating cylinder to rotate, the filter screen can filter the protective gas, the scraping plate can scrape the impurities on the rotating cylinder, the impurities fall into the collecting frame through the round hole, and the collected impurities can be cleaned by pulling out the collecting frame.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic cross-sectional view of the present invention.
FIG. 3 is a schematic view of a partially cut-away structure of the present invention.
Fig. 4 is a schematic view of the structure of the moving mechanism and the collecting mechanism of the present invention.
Fig. 5 is a schematic view showing the structure of the connecting cylinder, the one-way pipe, the sliding plug and the third compression spring according to the present invention.
Fig. 6 is a schematic structural view of the locking mechanism of the present invention.
FIG. 7 is a schematic view of a cleaning mechanism according to the present invention.
FIG. 8 is a schematic view in partial cross-section of a cleaning mechanism of the present invention.
Fig. 9 is an exploded view of the rotating drum, scraper, rotating fan and rotating frame of the present invention.
Reference numerals illustrate: 1_support, 2_braze furnace, 21_relief valve, 3_swivel cap, 31_projection, 4_vacuum pump, 5_vacuum gauge, 51_inflator, 6_control box, 7_heater, 8_slide plate, 9_travel mechanism, 91_connecting rod, 92_telescoping sleeve, 93_screw, 94_connecting frame, 95_extrusion frame, 96_first toothed ring, 97_first gear, 98_first compression spring, 99_extrusion rod, 10_collection mechanism, 101_collection box, 102_piston plate, 103_second compression spring, 104_first adjustment valve, 105_connecting cylinder, 106_check tube, 107_slide plug, 108_third compression spring, 11_locking mechanism, 111_motor, 112_second gear, 113_swivel ring, 114_second toothed ring, 115_locking block, 12_purge mechanism, 120_pump, 121_connecting box, 122_connecting tube, 123_second adjustment valve, 124_collection frame, 125_swivel cylinder, 126_swivel scraper, 127_128_filter screen, 129_swivel fan.
Detailed Description
The invention is further described below with reference to the drawings and the detailed description.
Example 1
1-6, including support frame 1, braze welding furnace 2, relief valve 21, rotating cover 3, aerating device 51, heater 7, sliding plate 8, vacuum pumping assembly, collecting mechanism 10 and moving mechanism 9, braze welding furnace 2 is welded on support frame 1, the right side of braze welding furnace 2 is equipped with relief valve 21, the left side of braze welding furnace 2 top is equipped with aerating device 51, the left side of braze welding furnace 2 is connected with rotating cover 3 in a rotating way, the right side of rotating cover 3 is equipped with rubber sealing ring, braze welding furnace 2 is equipped with heater 7, the bottom in braze welding furnace 2 is connected with sliding plate 8 horizontally arranged, sliding plate 8 is equipped with a plurality of through holes, through putting small metal parts on sliding plate 8, when braze welding furnace 2 is in vacuum state, aerating device 51 is controlled to charge protective gas into braze welding furnace 2, the heater 7 is controlled to heat again, so that the metal filler on the small metal parts is melted, and the small metal parts are subjected to vacuum brazing, a vacuumizing assembly for enabling the brazing furnace 2 to be in a vacuum state is arranged on the brazing furnace 2, a collecting mechanism 10 is arranged on the brazing furnace 2, a moving mechanism 9 for enabling the sliding plate 8 to move is arranged on the brazing furnace 2, the vacuumizing assembly comprises a vacuum pump 4, a vacuum gauge 5 and a control box 6, the vacuum pump 4 is arranged on the front side of the brazing furnace 2, the vacuum gauge 5 is arranged on the top of the brazing furnace 2, the control box 6 is arranged on the left part of the front side of the support frame 1, the vacuum pump 4 and the vacuum gauge 5 are electrically connected with the control box 6, when the rotary cover 3 is closed, air in the brazing furnace 2 is pumped out by controlling the vacuum pump 4, the small metal parts are prevented from being oxidized, the vacuum gauge 5 can detect the vacuum degree, thereby bringing the vacuum degree of the brazing furnace 2 into a proper range.
As shown in fig. 1, fig. 2, fig. 4 and fig. 5, the collecting mechanism comprises a collecting box 101, a piston plate 102, a second compression spring 103, a first regulating valve 104, a connecting cylinder 105, a one-way pipe 106, a sliding plug 107 and a third compression spring 108, wherein the collecting box 101 is fixedly connected to the right side of the top of the brazing furnace 2, the piston plate 102 is slidably connected to the inside of the collecting box 101, the piston plate 102 is in sealing contact with the collecting box 101, the second compression spring 103 is connected between the piston plate 102 and the collecting box 101, a first regulating valve 104 is arranged between the left side of the bottom of the collecting box 101 and the brazing furnace 2, the connecting cylinder 105 is fixedly connected to the top of the brazing furnace 2, the one-way pipe 106 is communicated between the connecting cylinder 105 and the collecting box 101, the sliding plug 107 is slidably connected to the inside of the connecting cylinder 105, and the third compression spring 108 is connected between the sliding plug 107 and the connecting cylinder 105, and when the protective gas in the brazing furnace 2 is heated and expands, the protective gas can push the sliding plug 107 to move upwards, so as to enter the collecting box 101 to collect.
As shown in fig. 1 and 4, the moving mechanism 9 includes a connecting rod 91, a telescopic sleeve 92, a spiral rod 93, a connecting frame 94, an extrusion frame 95, a first toothed ring 96, a first gear 97, a first compression spring 98 and an extrusion rod 99, wherein the connecting rod 91 is fixedly connected to the right side of the piston plate 102, the connecting rod 91 is slidably connected to the collecting box 101, the connecting rod 91 extends from the right side of the collecting box 101, the connecting rod 91 is slidably connected to the brazing furnace 2, a telescopic sleeve 92 is fixedly connected between the connecting rod 91 and the brazing furnace 2, the spiral rod 93 is fixedly connected to the lower portion of the connecting rod 91, the spiral rod 93 is located inside the brazing furnace 2, when a protective gas enters the collecting box 101, the protective gas pushes the piston plate 102 to move to the right, the spiral rod 93 is driven to move to the right, the connecting rod 94 is welded to the right, the connecting frame 94 is rotatably connected to the extrusion frame 95, the left side edge of the extrusion frame 95 is in a reciprocating concave-convex shape, the right side edge of the sliding frame 8 is fixedly connected to the extrusion rod 99, the extrusion frame 95 is intermittently contacted with the extrusion frame 99, a first toothed ring 96 is fixedly connected to the extrusion frame 95, the top of the connecting frame 94 is rotatably connected to the first gear 97, the first toothed ring 97 is rotatably connected to the first toothed ring 97, and the first toothed ring 97 is in a reciprocating shape, and the intermittent contact with the first toothed ring is made to the first toothed ring 98, and the first toothed ring is in a reciprocating shape, the intermittent compression spring is in the intermittent contact with the first toothed ring, and the first toothed ring 97 is made to move to the first toothed ring and the extrusion frame 97.
As shown in fig. 1, fig. 2 and fig. 6, the locking mechanism 11 comprises a motor 111, a second gear 112, a rotating ring 113, a second toothed ring 114 and locking blocks 115, a plurality of protruding parts 31 are circumferentially arranged on the rotating cover 3 at intervals, the motor 111 is bolted to the left side of the top of the brazing furnace 2, the second gear 112 is connected to an output shaft of the motor 111 through a coupling, the rotating ring 113 is rotationally connected to the left part of the brazing furnace 2, the second toothed ring 114 is fixedly connected to the rotating ring 113, the second gear 112 is meshed with the second toothed ring 114, a plurality of locking blocks 115 are fixedly connected to the rotating ring 113 at intervals circumferentially, the locking blocks 115 are all L-shaped, the locking blocks 115 are in one-to-one correspondence with the protruding parts 31, the locking blocks 115 are in contact with the rotating cover 3, the locking blocks 115 can lock the rotating cover 3, the second gear 112 is driven to rotate by controlling the motor 111, the rotating ring 113 and the locking blocks 115 are driven to rotate, and the locking blocks 115 are separated from the rotating cover 3, and the rotating cover 3 can be opened.
Initially, the first compression spring 98 is in a stretched state, when vacuum brazing is required to be carried out on small metal parts, the motor 111 is controlled to drive the second gear 112 to rotate, the second gear 114 is driven to rotate under the meshing action, the rotating ring 113 and the locking block 115 are driven to rotate, when the locking block 115 is separated from the convex part 31 of the rotating cover 3, the rotating cover 3 can be rotated left to open, then the small metal parts with metal fillers are placed on the sliding plate 8, the rotating cover 3 is rotated right to close, the motor 111 is controlled to drive the second gear 112 to rotate reversely, the locking block 115 can lock the rotating cover 3, then the vacuum pump 4 is controlled by the control box 6 to pump out air in the brazing furnace 2, the vacuum gauge 5 can detect the vacuum degree in the brazing furnace 2, so that the brazing furnace 2 can reach proper vacuum degree under the cooperation of the vacuum gauge 5, the vacuum pump 4 and the control box 6, the air charging device 51 is controlled to charge the protective gas into the brazing furnace 2, the rubber sealing ring plays a sealing role to prevent the protective gas from leaking, the heater 7 is controlled to heat the protective gas in the brazing furnace 2, the metal filler is heated and melted, capillary action is generated between the melted liquid metal and the small metal parts to achieve the effect of mutual adhesion, the small metal parts are subjected to vacuum brazing, meanwhile, the protective gas expanded by heating pushes the sliding plug 107 to move upwards, the third compression spring 108 stretches, so that the protective gas enters the collecting box 101 through the unidirectional pipe 106, the protective gas pushes the piston plate 102 to move rightwards, the second compression spring 103 compresses to drive the connecting rod 91 and the spiral rod 93 to move rightwards, the telescopic sleeve 92 stretches, and the sealing role can be played, the first gear 97 is driven to rotate under the action of threaded connection, thereby driving the first toothed ring 96 and the extrusion frame 95 to rotate, when the extrusion frame 95 is separated from the extrusion rod 99, the first compression spring 98 is restored to be original shape, the extrusion rod 99 is driven to move to the right, thereby driving the sliding plate 8 and the small metal parts to move to the right, when the extrusion frame 95 continues to rotate, the extrusion frame 95 can extrude the extrusion rod 99 to move to the left, the sliding plate 8 and the small metal parts are driven to move to the left, the first compression spring 98 stretches, the reciprocating operation is performed in such a way, the sliding plate 8 and the small metal parts can reciprocate to the left and the right, so that the small metal parts are heated uniformly, the vacuum brazing effect is improved, after the vacuum brazing is finished, the decompression valve 21 is opened, the brazed small metal parts can be taken out through opening the rotary cover 3, then the next batch of small metal parts to be brazed are put in, then the rotary cover 3 is closed, after the brazing furnace 2 is in a vacuum state, the first regulating valve 104 is controlled, the protective gas in the collection box 101 can enter the brazing furnace 2, the second compression spring is controlled to be restored to be original shape, and the piston plate is repeatedly moved to the left, and the protective gas is used to the left 102.
Example two
On the basis of embodiment 1, as shown in fig. 1, fig. 2, fig. 7, fig. 8 and fig. 9, the device further comprises a cleaning mechanism 12, the cleaning mechanism 12 comprises a sucking pump 120, a connecting box 121, a connecting pipe 122, a second regulating valve 123, a collecting frame 124, a rotating cylinder 125, a scraping plate 126, a rotating fan 127, a filter screen 128 and a rotating frame 129, the sucking pump 120 is installed on the right part of the brazing furnace 2, a connecting box 121 is fixedly connected to the bottom of the brazing furnace 2, the connecting pipe 122 is communicated between the connecting box 121 and the brazing furnace 2, the collecting frame 124 is hermetically connected to the left part of the connecting pipe 122 in a sliding manner, a rotating frame 129 is rotatably connected to the left side of the inside of the connecting pipe 122, a rotating fan 127 is fixedly connected to the rotating frame 129, a rotating cylinder 125 provided with a plurality of round holes is fixedly connected to the rotating frame 129, the air flow can push the rotating fan 127 to rotate through controlling the protecting air in the brazing furnace 2 to the connecting pipe 122, the rotating frame 129 and the rotating cylinder 125 is fixedly connected to the left side of the connecting pipe 128, the scraping plate 122 is internally provided with the second regulating valve 123, and impurities can be fallen into the round holes 125 through the rotating frame 125 when the scraping plate 126 is rotatably connected to the rotating frame 125.
After vacuum brazing is finished, the air pump 120 is controlled to pump the protective gas in the brazing furnace 2 into the connecting pipe 122 and the connecting box 121, the air flow can push the rotating fan 127 to rotate, the rotating frame 129 and the rotating cylinder 125 are driven to rotate, the filter screen 128 can filter the protective gas, impurities in the protective gas can be adhered to the rotating cylinder 125, when the rotating cylinder 125 contacts with the scraping plate 126, the scraping plate 126 can scrape the impurities on the rotating cylinder 125, the impurities fall into the collecting frame 124 through round holes, the second regulating valve 123 is controlled to enable the protective gas in the connecting box 121 to flow back into the brazing furnace 2, the protective gas circularly flows, and after more impurities are collected in the collecting frame 124, the impurities can be cleaned by pulling the collecting frame 124, so that the impurities in the brazing furnace 2 can be cleaned.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (5)
1. The vacuum brazing furnace for the small metal parts comprises a supporting frame (1), a brazing furnace (2) and a pressure release valve (21), wherein the brazing furnace (2) is connected to the supporting frame (1), the pressure release valve (21) is arranged on the brazing furnace (2), the vacuum brazing furnace is characterized by further comprising a rotating cover (3), an air charging device (51), a heater (7), a sliding plate (8), a vacuumizing assembly, a collecting mechanism (10) and a moving mechanism (9), the air charging device (51) for charging protective gas is arranged on the brazing furnace (2), the rotating cover (3) is connected to the brazing furnace (2) in a rotating mode, a rubber sealing ring is arranged on one side, close to the brazing furnace (2), of the rotating cover (3), a heater (7) for heating the small metal parts is arranged in the brazing furnace (2), a sliding plate (8) for placing the small metal parts is arranged at the bottom of the brazing furnace (2) in a sliding mode, a plurality of through holes are formed in the sliding plate (8), the vacuumizing assembly for enabling the brazing furnace (2) to be in a vacuum state is arranged on the brazing furnace (2), and the collecting mechanism (10) is arranged on the moving mechanism (9) for enabling the brazing furnace (2) to be arranged on the moving mechanism (2); the collecting mechanism (10) comprises a collecting box (101), a piston plate (102), a second compression spring (103), a first regulating valve (104), a connecting cylinder (105), a one-way pipe (106), a sliding plug (107) and a third compression spring (108), wherein the top of the brazing furnace (2) is connected with the collecting box (101) for collecting protective gas, the piston plate (102) is connected inside the collecting box (101) in a sliding manner, the piston plate (102) is in sealing contact with the collecting box (101), the second compression spring (103) is connected between the piston plate (102) and the collecting box (101), the first regulating valve (104) is arranged between the collecting box (101) and the brazing furnace (2), the connecting cylinder (105) is connected on the brazing furnace (2), the one-way pipe (106) is communicated between the connecting cylinder (105) and the collecting box (101), the sliding plug (107) is connected inside the connecting cylinder (105), and the third compression spring (108) is connected between the sliding plug (107) and the connecting cylinder (105); the moving mechanism (9) comprises a connecting rod (91), a telescopic sleeve (92), a spiral rod (93), a connecting frame (94), an extrusion frame (95), a first toothed ring (96), a first gear (97), a first compression spring (98) and an extrusion rod (99), wherein the connecting rod (91) is connected to a piston plate (102), the connecting rod (91) is connected with a collecting box (101) in a sliding manner, the connecting rod (91) extends out of the collecting box (101), the connecting rod (91) is connected with a brazing furnace (2) in a sliding manner, the telescopic sleeve (92) is connected between the connecting rod (91) and the brazing furnace (2), the spiral rod (93) is connected with the spiral rod (93) on the connecting rod (91), the spiral rod (93) is positioned in the brazing furnace (2), the connecting frame (94) is internally connected with the connecting frame (94), the extrusion rod (95) is rotationally connected to the sliding plate (8), the extrusion rod (99) is rotationally contacted with the extrusion rod (99), the first toothed ring (96) is connected to the extrusion frame (95), the first toothed ring (97) is intermittently meshed with the first gear (97) on the connecting frame (97), a first compression spring (98) is connected between the sliding plate (8) and the brazing furnace (2); the edge of one side of the extrusion frame (95) close to the extrusion rod (99) is in a reciprocating concavo-convex shape.
2. The vacuum brazing furnace for small metal parts according to claim 1, wherein the vacuumizing assembly comprises a vacuum pump (4), a vacuum gauge (5) and a control box (6), the vacuum pump (4) is installed on the brazing furnace (2), the vacuum gauge (5) for detecting the vacuum degree is installed on the brazing furnace (2), the control box (6) is connected to the supporting frame (1), and the vacuum pump (4) and the vacuum gauge (5) are electrically connected with the control box (6).
3. The vacuum brazing furnace for small metal parts according to claim 1, wherein the locking mechanism (11) comprises a motor (111), a second gear (112), a rotating ring (113), a second toothed ring (114) and locking blocks (115), the motor (111) is connected to the brazing furnace (2), the second gear (112) is connected to an output shaft of the motor (111) through a coupling, the rotating ring (113) is connected to the brazing furnace (2) in a rotating manner, the second toothed ring (114) is connected to the rotating ring (113), the second gear (112) is meshed with the second toothed ring (114), a plurality of locking blocks (115) for locking the rotating cover (3) are connected to the rotating ring (113) at intervals in the circumferential direction, and the locking blocks (115) are in contact with the rotating cover (3).
4. The vacuum brazing furnace for small metal parts according to claim 1, further comprising a cleaning mechanism (12), wherein the cleaning mechanism (12) comprises a sucking pump (120), a connecting box (121), a connecting pipe (122), a second regulating valve (123), a collecting frame (124), a rotating cylinder (125), a scraping plate (126), a rotating fan (127), a filter screen (128) and a rotating frame (129), the sucking pump (120) is installed on the brazing furnace (2), the connecting box (121) is connected on the brazing furnace (2), a connecting pipe (122) is communicated between the connecting box (121) and the brazing furnace (2), a collecting frame (124) for collecting impurities is connected on the connecting pipe (122) in a sliding and sealing manner, a second regulating valve (123) is installed between the connecting box (121) and the brazing furnace (2), the rotating frame (129) is connected inside the connecting pipe (122), the rotating cylinder (125) with a plurality of round holes is connected on the rotating frame (129), the filter screen (128) is connected on the rotating frame (129), and the connecting pipe (122) is connected inside the connecting pipe (122) for scraping the impurities (126) to contact the scraping plate (126).
5. A vacuum brazing furnace for small metal parts according to claim 1, characterized in that the rotary cover (3) is provided with a plurality of projections (31) at intervals in the circumferential direction, and the locking blocks (115) are in one-to-one correspondence with the projections (31).
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| CN202310700184.1A CN116423004B (en) | 2023-06-14 | 2023-06-14 | Vacuum brazing furnace for small metal parts |
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| CN202310700184.1A CN116423004B (en) | 2023-06-14 | 2023-06-14 | Vacuum brazing furnace for small metal parts |
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| CN116423004B true CN116423004B (en) | 2023-08-25 |
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| CN114850603A (en) * | 2022-06-20 | 2022-08-05 | 韶山恒升机械工业有限公司 | Welding process and welding device of vacuum furnace |
| CN217343920U (en) * | 2022-01-12 | 2022-09-02 | 沈阳佳誉真空科技有限公司 | High vacuum brazing furnace |
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| CN1646250A (en) * | 2002-02-05 | 2005-07-27 | 伊普森国际公司 | Vacuum compression brazing furnace and method of using same |
| CN203003301U (en) * | 2012-12-24 | 2013-06-19 | 沈阳真空技术研究所 | Trolley vacuum brazing furnace |
| JP2014049746A (en) * | 2013-01-10 | 2014-03-17 | Yamato Seisakusho:Kk | Heating furnace |
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| CN116423004A (en) | 2023-07-14 |
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