A flange vacuum brazing device for thickening tantalum diaphragm

Abstract

The invention discloses a flange vacuum brazing device for thickening tantalum diaphragm, which relates to the field of vacuum brazing. Its technical scheme mainly comprises a vacuum suction base, a first linear motor base, a mechanical clamping claw, and a first electric servo telescopic rod. A mechanical clamping claw is arranged in each linear moving track. A heating sealing cover capable of sealingly fitting with the vacuum suction base is fixedly installed on the output end of the first electric servo telescopic rod. The thickened tantalum diaphragm and the flange can be clamped on the left and right by the mechanical clamping claws arranged on the output ends on both sides of the first linear motor base, respectively. In conjunction with the rotating coating action of the brazing material coating mechanism on both sides of the output ends of the middle end cooperative driving module, the brazing material nozzles work synchronously, one is responsible for coating the inner side surface of the tantalum diaphragm, and the other is responsible for coating the inner side surface of the flange, so as to ensure that the brazing material on both sides is coated evenly and matched, so that the brazing material on the coated end surface is uniform and consistent.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum brazing, and more particularly to a flange vacuum brazing device for thickening a tantalum diaphragm. Background Art

[0002] In the existing field of pressure transmitter manufacturing technology, the connection quality between the flange and the tantalum diaphragm is a key factor in ensuring product performance. Traditional welding processes often face the challenge of unstable and difficult-to-guarantee welding joint quality when dealing with high-melting-point and difficult-to-process materials such as tantalum diaphragms. In view of this, in order to improve the welding effect and stability of thickened tantalum diaphragms and flanges, the industry generally adopts vacuum brazing technology. This technology uses brazing filler metal to achieve high-temperature welding in a vacuum environment, avoiding the melting of the base material, significantly reducing the heat-affected zone, and reducing the risk of thermal deformation.

[0003] The core of vacuum brazing process lies in the selection of brazing filler metal, which is directly related to the strength and sealing performance of the connection interface. For tantalum diaphragms, metals or alloys with excellent wettability are often selected as brazing fillers, such as silver-based or nickel-based alloys. Taking nickel-based alloys as an example, such brazing filler metals are often in powder form, which are made into paste by mixing solvents and then evenly coated on the surface to be welded with the help of hand tools such as brushes and scrapers.

[0004] However, when processing the thickened tantalum diaphragm, due to its unique structural characteristics, its connecting end face needs to be closely matched with the annular flange, and the thickened design leads to an increase in the joint area, which brings new difficulties to the application of the brazing filler metal. In order to ensure the sufficiency and uniformity of the brazing filler metal on the joint surface during vacuum brazing, the brazing filler metal needs to be finely applied to the inner surfaces of the tantalum diaphragm and the flange respectively. However, in practice, manual application is difficult to accurately control the brazing filler metal matching degree on both sides, and mechanical application is limited by the equipment capacity and is difficult to act on both sides efficiently at the same time. It often needs to be carried out in steps, which not only prolongs the exposure time of the brazing filler metal, but also increases the risk of oxidation of the parent material surface, affecting the overall vacuum brazing welding quality. Therefore, it is necessary to provide a flange vacuum brazing device for thickened tantalum diaphragms. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a flange vacuum brazing device for thickening tantalum diaphragms, aiming to solve the above technical problems.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A flange vacuum brazing device for thickening a tantalum diaphragm, comprising a vacuum suction base, a first linear motor base, and a mechanical clamping claw, wherein the first linear motor base is fixedly mounted on the upper surface of the vacuum suction base; linear moving tracks are provided at both sides of the upper surface of the first linear motor base on both sides; and a mechanical clamping claw is disposed in each linear moving track, first electric servo telescopic rods are fixedly mounted at the four side corners of the first linear motor base, and a heating sealing cover capable of sealingly fitting with the vacuum suction base is fixedly mounted on the output end of the first electric servo telescopic rod;

[0008] An auxiliary bracket is sleeved and installed on the upper surface of the first linear motor base at a position between the mechanical clamping claws on both sides, a servo motor is fixedly installed at the middle position of the bottom of the auxiliary bracket, and a joint drive module capable of synchronously driving three sides is configured at the bottom of the servo motor through its output end, and a solder coating mechanism is configured on the left and right output ends of the joint drive module, and a solder recovery mechanism is configured on the bottom output end;

[0009] Among them, the solder coating mechanism includes a residual material recovery mechanism and a solder spray nozzle at relatively symmetrical positions on both sides. Through the driving action of the cooperative driving module, the solder spray nozzle can simultaneously align the thickened tantalum diaphragm and the welding surface of the flange plate clamped by the mechanical clamping claws on both sides to apply solder; and cooperate with the residual material recovery mechanism to recover the oxidized or residual solder on the outer layer to ensure the vacuum brazing effect of the parent material surface.

[0010] As a further solution of the present invention: a second shaft is fixedly connected to the bottom output end of the servo motor, a first bevel gear is fixedly installed on the bottom of the second shaft, an auxiliary hanger is fixedly installed on the bottom of the servo motor, second bevel gears corresponding to the first bevel gear meshing with the bottom end of the auxiliary hanger are movably installed respectively at the two side ends of the bottom, a third shaft extending outward is fixedly connected at the center position of the outer side surface of the second bevel gear, and the brazing material applying mechanism includes a side plate fixedly connected to the outer surface of the third shaft on each side.

[0011] As a further solution of the present invention: the outer surface of the side panel is fixedly installed with a second linear motor base on the left and right with the third axis rod as the dividing point; and symmetrically arranged mobile cavity holders are fixedly installed on the linear output ends of the second linear motor bases on both sides; a residual material recovery mechanism is arranged on the outer surface of the mobile cavity holder on one side; a solder nozzle is arranged on the outer surface of the mobile cavity holder on the other side; and an infrared ranging module facing the two side ends of the side panel is fixedly installed on the side surface of the mobile cavity holder on each side.

[0012] As a further solution of the present invention: the residual material recovery mechanism includes a cavity shell, and both sides of the cavity shell are fixedly installed with bevel side panels that gather toward the middle end of the shell; and a notch sleeve block is fixedly installed on the surface of the bevel side panel on each side, close to the inner side of the cavity shell, and a feeding crawler is fixedly installed in the notch of the notch sleeve block, and a second electric servo telescopic rod is fixedly installed on the surface of the bevel side panel, close to the outer side of the cavity shell.

[0013] As a further solution of the present invention: the output end of the second electric servo telescopic rod extends outward along the side of the bevel side plate; and a pointed scraper is fixedly installed on its output end, and an elastic film is fixedly connected between the pointed scraper and the groove sleeve block on the same side, and interface covers are fixedly installed at the positions of the two side corners of the interior of the cavity shell that are aligned with the conveying end of the feed crawler, and a conical partition is fixedly installed at the middle position of the interior of the cavity shell, and suction modules that are connected to the interface covers on the same side are fixedly installed on both sides of the interior of the conical partition.

[0014] As a further solution of the present invention: the cooperative drive module also includes a straight reset rod fixedly connected to the four side corners of the bottom of the servo motor, a disc plate is fixedly installed on the bottom of the straight reset rod, and a circular opening is opened at the center of the disc plate; and a sealing ring is fixedly installed on the bottom edge of the circular opening, and a reciprocating pull rod inserted in the sealing ring is fixedly connected at the bottom axial position of the first bevel gear; and a sealing rubber sleeve wrapped around the bottom of the sealing ring is fixedly connected to the bottom of the reciprocating pull rod, the track surface of the feed track is flush with the surface of the slot block, and the side of the pointed scraper parallel to the inclined surface of the bevel side plate is higher than the surface of the slot block at the same side end.

[0015] As a further solution of the present invention: the solder recovery mechanism includes a first cavity tube fixedly installed on the bottom of the disc plate, the top of the first cavity tube is open, and a second cavity tube is fixedly installed on the bottom of the first cavity tube, and the outer edge surfaces of the first cavity tube and the second cavity tube are both in a visible and transparent state, and a leak hole partition disk is fixedly connected to the middle position inside the first cavity tube, and an elastic annular cavity is fixedly installed on the bottom of the leak hole partition disk; and a rod that is connected and corresponding to the elastic annular cavity is fixedly connected to the side of the elastic annular cavity; and an adsorption conduit that passes through the first cavity tube outward, and the bottom of the reciprocating pull rod is fixedly connected to the first shaft rod.

[0016] As a further solution of the present invention: a plurality of protrusions are fixedly installed on the outer edge surface of the second bevel gear, the bottom of the first shaft rod is movably inserted into the interior of the second cavity tube, a first stirring blade is fixedly installed on the outer surface of the first shaft rod at a position on the upper side of the leakage hole partition plate, a circular extrusion plate is fixedly installed on the outer surface of the first shaft rod at a position on the lower side of the elastic circular ring cavity, a plurality of leakage stirring plates are fixedly installed on the bottom of the circular extrusion plate in a circular arrangement, and a second stirring blade is fixedly installed on the outer surface of the first shaft rod at a position inside the second cavity tube.

[0017] As a further solution of the present invention: an elastic material delivery hose is fixedly connected to the movable cavity holder on one side of the cavity shell and the movable cavity holder on one side of the solder nozzle, the outer end of the elastic material delivery hose on one side of the cavity shell is connected to the top of the first cavity tube, and the outer end of the elastic material delivery hose on one side of the solder nozzle is connected to the bottom of the second cavity tube; and a corresponding pump is arranged inside the second cavity tube and on the connection end of the elastic material delivery hose.

[0018] As a further solution of the present invention: a communicating conduit is fixedly connected at the bottom side of the first cavity tube and the top side of the second cavity tube; and an electric control valve is arranged on the conduit.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The thickened tantalum diaphragm and the flange are clamped on the left and right by the mechanical clamping claws configured on the output ends on both sides of the first linear motor base, and they are moved closer to the middle. In conjunction with the rotating and coating action of the brazing material coating mechanism on the output ends on both sides of the middle end cooperative drive module, two independent brazing material nozzles on the left and right sides work synchronously, one is responsible for coating the inner side of the tantalum diaphragm, and the other is responsible for coating the inner side of the flange, ensuring that the brazing material on both sides is evenly coated and matched, so that the brazing material on the coated end surface is uniform and consistent, and the entire coating process is carried out in the sealed environment of the heating sealing cover on the cover to create a relatively closed, low-oxygen ring to reduce the risk of oxidation of the outer brazing material.

[0021] 2. Through the residual material recovery mechanism on the other symmetrical side of the solder coating mechanism, when the joint driving module drives the solder nozzle to perform solder coating work, the residual material recovery mechanism can also rotate synchronously, following closely at an interval of 180 degrees. By selecting a solder nozzle of corresponding length according to the coating thickness, a height difference between the solder nozzle and the cavity shell can be created, so that the pointed scraper on the cavity shell following closely can scrape the coated solder layer flat, and the length of the pointed scraper extended by the second electric servo telescopic rod can be controlled to selectively scrape off the oxidized outer layer of solder on the outer surface, thereby further ensuring the activity of the solder on the two welding surfaces during the vacuum brazing process.

[0022] 3. Through the brazing material nozzle and the elastic material delivery hose connected to the first cavity tube and the second cavity tube on the cavity shell respectively, the residual material and oxidized brazing material can be recovered to the first cavity tube during the brazing material coating and residual material recovery process, and the linkage force generated by the cooperative driving module during the operation of the brazing material coating mechanism is used to drive the first stirring blade and the second stirring blade on the first shaft to rotate in their respective cavities to ensure the fluidity and activity of the brazing material in the recovery end and the storage end, and the convex block on the outer surface of the second bevel gear is used to reciprocately squeeze the disc plate, so that the annular squeezing plate reciprocates to squeeze the elastic annular cavity, so that the elastic annular cavity automatically extrude and replenish the recovery reagent to the upper surface of the leak hole partition plate, the oxidized brazing material is recovered and discharged for use again, and the cycle stability of vacuum brazing is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 A schematic diagram of the working state structure of vacuum brazing of thickened tantalum diaphragm and flange;

[0025] Figure 2 It is a schematic diagram of the overall structure of the auxiliary bracket;

[0026] Figure 3 It is a structural diagram of the cooperative drive module;

[0027] Figure 4 for Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0028] Figure 5 It is a structural schematic diagram of the brazing material applying mechanism;

[0029] Figure 6 It is a schematic diagram of the overall structure of the brazing material applying mechanism;

[0030] Figure 7 It is a structural schematic diagram of the internal cross-sectional state of the brazing material applying mechanism;

[0031] Figure 8 It is a structural schematic diagram of the internal cross-section state of the brazing material recovery mechanism.

[0032] Reference numerals:

[0033] 1. Vacuum suction base; 2. First linear motor base; 3. Mechanical clamping claw; 4. First electric servo telescopic rod; 5. Heating sealing cover; 6. Auxiliary bracket; 7. Servo motor;

[0034] 8. Brazing material applying mechanism; 81. Side plate; 82. Second linear motor base; 83. Moving cavity holder; 84. Infrared ranging module;

[0035] 85. Residual material recovery mechanism; 851. Cavity shell; 852. Bevel side plate; 853. Notch sleeve block; 854. Material conveying crawler; 855. Second electric servo telescopic rod; 856. Pointed scraper; 857. Elastic film; 858. Interface cover; 859. Conical partition; 8510. Suction module;

[0036] 86. Brazing material nozzle; 87. Elastic material delivery hose;

[0037] 9. Solder recovery mechanism; 91. First cavity cylinder; 92. Second cavity cylinder; 93. Leakage hole spacer; 94. Elastic annular cavity; 95. Adsorption catheter; 96. First shaft; 97. First stirring blade; 98. Annular extrusion plate; 99. Leakage stirring plate; 910. Second stirring blade;

[0038] 10. Joint driving module; 101. Second shaft; 102. First bevel gear; 103. Auxiliary hanger; 104. Second bevel gear; 105. Third shaft; 106. Bump; 107. Straight reset rod; 108. Disc plate; 109. Sealing ring; 1010. Reciprocating pull rod; 1011. Sealing rubber sleeve;

[0039] 11. Electric control valve. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0041] Reference Figures 1 to 8 The following is a further description of an embodiment of a flange vacuum brazing device for thickening a tantalum diaphragm according to the present invention.

[0042] A flange vacuum brazing device for thickening a tantalum diaphragm, comprising a vacuum suction base 1, a first linear motor base 2, and a mechanical clamping claw 3, wherein the first linear motor base 2 is fixedly mounted on the upper surface of the vacuum suction base 1; linear moving tracks are provided at both sides of the upper surface of the first linear motor base 2 on both sides; and a mechanical clamping claw 3 is disposed in each linear moving track, first electric servo telescopic rods 4 are fixedly mounted at the four side corners of the first linear motor base 2, and a heating sealing cover 5 capable of sealingly fitting with the vacuum suction base 1 is fixedly mounted on the output end of the first electric servo telescopic rod 4;

[0043] An auxiliary bracket 6 is sleeved and installed on the upper surface of the first linear motor base 2 at a position between the mechanical clamping claws 3 on both sides, and a servo motor 7 is fixedly installed at the middle position of the bottom of the auxiliary bracket 6. The bottom of the servo motor 7 is equipped with a joint drive module 10 capable of synchronously driving three sides through its output end, and the left and right output ends of the joint drive module 10 are both equipped with a solder coating mechanism 8, and the bottom output end is equipped with a solder recovery mechanism 9;

[0044] Among them, the solder coating mechanism 8 includes a residual material recovery mechanism 85 and a solder nozzle 86 at relatively symmetrical positions on both sides. Through the driving action of the cooperative driving module 10, the solder nozzle 86 can simultaneously align the thickened tantalum diaphragm and the welding surface of the flange plate clamped by the mechanical clamping claws 3 on both sides to apply solder; and cooperate with the residual material recovery mechanism 85 to recover the oxidized or residual solder on the outer layer to ensure the vacuum brazing effect of the parent material surface.

[0045] In view of the deficiencies in the prior art, the above technical scheme is now adopted to solve the problems. The above technical scheme mainly consists of a vacuum suction base 1, a first linear motor base 2, a mechanical clamping claw 3, a first electric servo telescopic rod 4, a heating sealing cover 5, a servo motor 7, a solder coating mechanism 8, a solder recovery mechanism 9, and a cooperative drive module 10. The vacuum suction base 1, the first linear motor base 2, the mechanical clamping claw 3, the first electric servo telescopic rod 4, the heating sealing cover 5, and the servo motor 7 are all prior art. The vacuum suction base 1 is used in conjunction with the heating sealing cover 5. When the sealing cover 5 is sealed on the upper surface of the first linear motor base 2 through the first electric servo telescopic rod 4, it can be evacuated and heated in the vacuum cavity in cooperation with the heating module in the heating sealing cover 5. The first linear motor base 2 is a motor base device equipped with four linear drives. The mechanical clamping claws 3 on each driving end are multi-axis mechanical clamping devices in the prior art, which are used to clamp the thickened tantalum diaphragm and the flange. After clamping the thickened tantalum diaphragm and the flange on the left and right, the linear driving end of the first linear motor base 2 can be used to approach the brazing material application mechanism 8.

[0046] Among them, the configured solder coating mechanism 8 is composed of a residual material recovery mechanism 85 and a solder nozzle 86, which are arranged on the left and the right, and the overall symmetrical design allows them to process the coating surface one after the other at an interval of 180 degrees during operation. Therefore, it is only necessary to change the extended length of the solder nozzle 86 to make the height difference between the two working ends fitting the coating surface, that is, the residual material recovery mechanism 85 can be used to scrape off the residual material, so that the thickness of the coating surface is easier to control, and the separate solder coating mechanisms 8 on both sides are driven by the cooperative driving module 10, so that the solder nozzle 86 can be simultaneously aligned with the surfaces to be coated on both sides to work, ensuring the degree of fit of the solder at the welding end, and in conjunction with the residual material recovery mechanism 85, the oxidized or residual solder on the outer layer can be recovered to ensure the effect of vacuum brazing on the surface of the base material, effectively solving the shortcomings of the technology.

[0047] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a second shaft 101 is fixedly connected to the bottom output end of the servo motor 7, a first bevel gear 102 is fixedly installed at the bottom of the second shaft 101, an auxiliary hanger 103 is fixedly installed at the bottom of the servo motor 7, and second bevel gears 104 corresponding to the first bevel gear 102 are movably installed at the two side ends of the bottom of the auxiliary hanger 103, and a third shaft 105 extending outward is fixedly connected at the center position of the outer side surface of the second bevel gear 104, and the solder applying mechanism 8 includes a side plate 81 fixedly connected to the outer surface of the third shaft 105 on each side.

[0048] Among them, the second bevel gears 104 movably installed on both sides of the first bevel gear 102 through the auxiliary hanger 103 are meshed with its surface one on the left and one on the right. When the servo motor 7 drives the first bevel gear 102 to rotate, the meshed second bevel gears 104 on both sides can also rotate in opposite directions. The configured third shaft 105 extends outward to ensure that the side plate 81 on the outer surface does not interfere with the servo motor 7 during rotation.

[0049] like Figure 2 , Figure 5 , Figure 6 , Figure 7As shown, the outer surface of the side plate 81 is fixedly installed with a second linear motor base 82 on the left and right with the third shaft rod 105 as the dividing point; and symmetrically arranged movable cavity holders 83 are fixedly installed on the linear output ends of the second linear motor bases 82 on both sides; a residual material recovery mechanism 85 is arranged on the outer surface of the movable cavity holder 83 on one side; a solder nozzle 86 is arranged on the outer surface of the movable cavity holder 83 on the other side; and an infrared ranging module 84 is fixedly installed on the side surface of the movable cavity holder 83 on each side facing the two side ends of the side plate 81.

[0050] Among them, the configured second linear motor base 82 is also a motor device capable of linear drive in the prior art, which is used to drive the mobile cavity holder 83 on the output end to perform reciprocating linear motion, and the infrared ranging module 84 configured on its surface is also a device that uses infrared for ranging in the prior art. It is connected to the outer control module, and the infrared emitting end is aligned with the two side end faces of the side plate 81 to measure the specific position of the mobile cavity holder 83 on the side plate 81 in real time, to accurately control the position of the mobile cavity holder 83 on each side, so as to synchronize the left and right sides.

[0051] like Figure 2 , Figure 5 , Figure 6 , Figure 7 As shown, the residual material recovery mechanism 85 includes a cavity shell 851, and both sides of the cavity shell 851 are fixedly installed with bevel side panels 852 that gather toward the middle end of the shell; and a notch sleeve block 853 is fixedly installed on the surface of the bevel side panel 852 on each side, close to the inner side of the cavity shell 851, and a material conveying crawler 854 is fixedly installed in the notch of the notch sleeve block 853, and a second electric servo telescopic rod 855 is fixedly installed on the surface of the bevel side panel 852, close to the outer side of the cavity shell 851.

[0052] like Figure 2 , Figure 5 , Figure 6 , Figure 7 As shown, the output end of the second electric servo telescopic rod 855 extends outward along the side of the bevel side plate 852; and a pointed scraper 856 is fixedly installed on its output end, and an elastic film 857 is fixedly connected between the pointed scraper 856 and the slot sleeve block 853 on the same side, and an interface cover 858 is fixedly installed at the position where the two side corners of the interior of the cavity shell 851 are aligned with the conveying end of the feed crawler 854, and a conical partition plate 859 is fixedly installed at the middle position of the interior of the cavity shell 851, and suction modules 8510 that communicate with the interface cover 858 on the same side are fixedly installed on both sides of the interior of the conical partition plate 859.

[0053] The cavity shell 851 and the bevel side plate 852 are integrally formed, and the ends of the bevel side plates 852 on both sides are open to cooperate with the extension and retraction of the pointed scraper 856. The two sides of the elastic film 857 disposed between the notch sleeve 853 and the pointed scraper 856 are stuck in the side wall of the cavity shell 851. During the retraction and extension process, the two sides will not be separated from the inner wall of the cavity shell 851. It is an elastic film with a certain toughness in the prior art. Membrane material, its feed track 854 is stuck in the slot of the slot sleeve block 853, the outer surface of the slot sleeve block 853 is flush with the track plane of the feed track 854, and the feed direction of the feed track 854 on the oblique side plates 852 at both ends of the cavity shell 851 is toward the inner side of the cavity shell 851, that is, toward the side of the interface cover 858, and the configured suction module 8510 is a suction device in the prior art, which will draw away the paste solder entering the interface cover 858.

[0054] like Figure 2 , Figure 3 , Figure 4 , Figure 8 As shown, the cooperative drive module 10 also includes a straight reset rod 107 fixedly connected to the four side corners of the bottom of the servo motor 7, a disc plate 108 is fixedly installed at the bottom of the straight reset rod 107, and a circular opening is opened at the center of the disc plate 108; and a sealing ring 109 is fixedly installed on the bottom edge of the circular opening, and a reciprocating pull rod 1010 inserted into the sealing ring 109 is fixedly connected at the bottom axial position of the first bevel gear 102; and a sealing rubber sleeve 1011 wrapped around the bottom of the sealing ring 109 is fixedly connected to the bottom of the reciprocating pull rod 1010, the track surface of the feeding track 854 is flush with the surface of the slot block 853, and the side of the pointed scraper 856 parallel to the inclined surface of the bevel side plate 852 is higher than the surface of the slot block 853 at the same side.

[0055] The purpose of the configured sharp-nosed scraper 856 having one side parallel to the inclined surface of the bevel side plate 852 higher than the surface of the slotted sleeve block 853 at the same side end is that during the process of the sharp-nosed scraper 856 being retracted, the protrusion higher than the slotted sleeve block 853 at the same side end can push the paste solder on the elastic film 857 toward the feeding track 854 of the slotted sleeve block 853. The straight reset rod 107 configured at the four side corners of the bottom of the servo motor 7 is a reset rod structure in the prior art, which pulls the disc plate 108 upward so that the disc plate 108 always has an upward lifting force.

[0056] The specific working process of the solder coating mechanism 8 is as follows:

[0057] First, the thickened tantalum diaphragm to be welded and the flange are clamped on the left and right by the mechanical clamping claws 3 arranged on both sides of the first linear motor base 2, and then the heating sealing cover 5 is closed downward by the first electric servo telescopic rod 4, and the vacuum suction base 1 is opened to evacuate the cavity;

[0058] Then, the servo motor 7 at the bottom of the auxiliary bracket 6 is used to control the second shaft rod 101 at its output end to rotate, thereby driving the meshing second bevel gears 104 on both sides to rotate, and controlling the rotation range of the second shaft rod 101 to drive it in a reciprocating cycle of 360 degrees clockwise and 360 degrees counterclockwise, so that the side plates 81 on the outer sides of the second bevel gears 104 on both sides are synchronously reciprocated. After the soldering material nozzle 86 of the corresponding length is configured according to the coating thickness requirement, during the slow servo rotation of the side plate 81, the soldering material nozzle 86 can be used to smear the solder on the surface to be welded at the bonding end;

[0059] Finally, while the side plate 81 controls the solder nozzle 86 to rotate and apply the solder, the residual material recovery mechanism 85 at the symmetrical position on the other side of the side plate 81 can also recover the residual material synchronously. The second electric servo telescopic rod 855 on the separate bevel side plates 852 on both sides of the cavity shell 851 can control the extended position of the pointed scraper 856 on the cavity shell 851, so that when it rotates 360 degrees clockwise and 360 degrees counterclockwise, the extended pointed scraper 856 corresponds to it, ensuring It is ensured that during the rotation, only the pointed scraper 856 on one side extends out to work, and the pointed scraper 856 on the other side does not interfere with its scraping work. The material scraped away by the pointed scraper 856 moves inward under the retraction action of the second electric servo telescopic rod 855, the suction action of the suction module 8510 and the action of its own flow, and is pushed onto the feed track 854 with the help of the protruding end on the inner side of the pointed scraper 856, and is finally transported away through the interface cover 858 and the elastic feed hose 87 on the corresponding side.

[0060] like Figure 2 , Figure 3 , Figure 4 , Figure 8 As shown, the solder recovery mechanism 9 includes a first cavity tube 91 fixedly mounted on the bottom of the disc plate 108, the top of the first cavity tube 91 is open, and a second cavity tube 92 is fixedly mounted on the bottom of the first cavity tube 91, and the outer edge surfaces of the first cavity tube 91 and the second cavity tube 92 are both visible and transparent, and a leak hole partition plate 93 is fixedly connected to the middle position of the interior of the first cavity tube 91, and an elastic annular cavity 94 is fixedly mounted on the bottom of the leak hole partition plate 93; and a corresponding one is fixedly connected to the side of the elastic annular cavity 94; and an adsorption conduit 95 that passes through the first cavity tube 91 outwards, and a first shaft rod 96 is fixedly connected to the bottom of the reciprocating pull rod 1010.

[0061] Among them, the configured first cavity tube 91 and the second cavity tube 92 are separated from each other and do not interfere with each other, and the interpenetrating end of the first shaft rod 96 passing through the two cavities is attached with a corresponding sealing circle, and the leakage hole opened by the leakage hole partition plate 93 can be designed according to the size of the oxidized solder agglomerate, so that it can intercept the solder that cannot be used directly, and the configured elastic annular cavity 94 is a resettable annular cavity in the prior art, and its annular cavity does not block the bottom of the leakage hole partition plate 93, so that the solder that is suitable for direct recycling can leak out, and the outer end of the adsorption conduit 95 extending outward is used to connect the recovery reagent, and the negative pressure generated in the process of squeezing and expanding the elastic annular cavity 94 can be sucked into the recovery reagent through the adsorption conduit 95, and the recovery reagent can be selected as the reagent used to recover nickel-based alloy solder in the prior art, such as alcohol.

[0062] like Figure 2 , Figure 3 , Figure 4 , Figure 8 As shown, a plurality of protrusions 106 are fixedly installed on the outer edge surface of the second bevel gear 104, the bottom of the first shaft rod 96 is movably inserted into the interior of the second cavity tube 92, and a first stirring blade 97 is fixedly installed on the outer surface of the first shaft rod 96 at a position on the upper side of the leakage hole partition plate 93, and a circular extrusion plate 98 is fixedly installed on the outer surface of the first shaft rod 96 at a position on the lower side of the elastic circular cavity 94, and a plurality of leakage stirring plates 99 are fixedly installed on the bottom of the circular extrusion plate 98 in a circular arrangement, and a second stirring blade 910 is fixedly installed on the outer surface of the first shaft rod 96 at a position inside the second cavity tube 92.

[0063] like Figure 2 , Figure 3 , Figure 4 , Figure 8 As shown, the movable cavity holder 83 on one side of the cavity shell 851 and the movable cavity holder 83 on one side of the solder nozzle 86 are both connected and fixedly provided with an elastic material delivery hose 87, the outer end of the elastic material delivery hose 87 on one side of the cavity shell 851 is connected to the top of the first cavity tube 91, and the outer end of the elastic material delivery hose 87 on one side of the solder nozzle 86 is connected to the bottom of the second cavity tube 92; and a corresponding pump is arranged inside the second cavity tube 92 and on the connection end of the elastic material delivery hose 87.

[0064] like Figure 1 , Figure 2 As shown, a communicating conduit is fixedly connected at the bottom side of the first cavity tube 91 and the top side of the second cavity tube 92; and an electric control valve 11 is arranged on the conduit.

[0065] Among them, the distance between the bottom of the leakage stirring plate 99 arranged in the first cavity tube 91 and the leakage hole partition plate 93 is consistent with the length of the protrusion 106 on the outer side of the second bevel gear 104, so as to ensure that when the protrusion 106 lifts the reciprocating pull rod 1010, the leakage stirring plate 99 will not hit the leakage hole partition plate 93, and the other first stirring blades 97 and second stirring blades 910 are also arranged in the same way. A corresponding pump is arranged on the connection end of the elastic feeding hose 87 inside the second cavity tube 92 for extracting solder outwards. Similarly, the side of the second cavity tube 92 is also arranged with an interface for injecting solder to directly replenish the solder, and the configured electric control valve 11 is a control valve tube in the prior art, which is convenient for re-introducing the solder at the bottom of the first cavity tube 91 into the second cavity tube 92, and the upper surface of the elastic annular cavity 94 is provided with a plurality of extrusion ports, which are in a closed state when there is no extrusion force, similar to the rubber extrusion port in the prior art;

[0066] The specific recycling process of the solder recycling mechanism 9 is as follows:

[0067] First, before the work starts, the second cavity tube 92 can be injected with directly usable solder to cooperate with the solder spray head 86 for application;

[0068] Then, when the cooperative driving module 10 drives the solder coating mechanism 8 to work, the first shaft 96 at the bottom of the reciprocating pull rod 1010 can also rotate, driving the first stirring blade 97 in the first cavity tube 91 and the second stirring blade 910 in the second cavity tube 92 to stir, so as to ensure the fluidity of the solder in the second cavity tube 92. Since the second bevel gear 104 on each side is provided with a convex block 106, the convex block 106 reciprocates to squeeze the disc plate 108, and cooperates with the pulling force of the straight reset pull rod 107, the first shaft 96 can also reciprocate up and down during the rotation process;

[0069] Finally, under the action of the up and down reciprocating movement of the first shaft 96, its annular extrusion plate 98 can reciprocately squeeze the elastic annular cavity 94 upward, so that the elastic annular cavity 94 cooperates with the adsorption catheter 95 to reciprocately extrude the recovery reagent to the upper side of the leak hole partition plate 93, mix it with the residual material recovered by the residual material recovery mechanism 85, and cooperate with the first stirring blade 97 to stir and recover it. After the agglomerated material regains its fluidity, it can enter the bottom of the first cavity tube 91 from the leak hole partition plate 93, and its fluidity is guaranteed in real time through the leak stirring plate 99, and then it is transported to the second cavity tube 92 at the bottom through the electric control valve 11, and it works in this reciprocating cycle.

[0070] Instructions for use: First, clamp the thickened tantalum diaphragm and flange on both sides through the mechanical clamping claws 3, close to the middle brazing material coating mechanism 8, and when the servo motor 7 drives the second bevel gears 104 on both sides of the cooperative driving module 10 to rotate, the brazing material nozzles 86 can be controlled to work one after the other, and the residual material recovery mechanism 85 can work synchronously to squeeze and apply the solder in the second cavity tube 92, and simultaneously recover the residual material and oxidized surface solder, and transport it to the first cavity tube 91, and extrude the elastic circular ring cavity 94 through the circular ring extrusion plate 98, and cooperate with the first stirring blade 97 to restore it, and finally remove the entire auxiliary bracket 6 installed by closing the heating sealing cover 5, and close the thickened tantalum diaphragm and flange through the first linear motor base 2, and heat it to achieve full vacuum brazing.

[0071] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A flange vacuum brazing device for thickening a tantalum diaphragm, comprising a vacuum suction base (1), a first linear motor base (2), and a mechanical clamping claw (3), characterized in that: The first linear motor base (2) is fixedly mounted on the upper surface of the vacuum suction base (1); linear motion tracks are provided at both sides of the upper surface of the first linear motor base (2); and each linear motion track is provided with a mechanical clamping claw (3); first electric servo telescopic rods (4) are fixedly mounted at the four side corners of the first linear motor base (2); and a heating sealing cover (5) capable of sealingly fitting with the vacuum suction base (1) is fixedly mounted on the output end of the first electric servo telescopic rod (4); An auxiliary bracket (6) is sleeved and installed on the upper surface of the first linear motor base (2) at a position between the mechanical clamping claws (3) on both sides, a servo motor (7) is fixedly installed at the middle position of the bottom of the auxiliary bracket (6), and a joint drive module (10) capable of synchronously driving three sides is configured at the bottom of the servo motor (7) through its output end, and a solder coating mechanism (8) is configured on the left and right output ends of the joint drive module (10), and a solder recovery mechanism (9) is configured on the bottom output end; The solder coating mechanism (8) comprises a residual material recovery mechanism (85) and a solder spray head (86) at symmetrical positions on both sides. The solder spray head (86) can be driven by a cooperative driving module (10) to simultaneously apply solder to the welding surfaces of the thickened tantalum diaphragm and the flange plate clamped by the mechanical clamping claws (3) on both sides; and cooperate with the residual material recovery mechanism (85) to recover the oxidized or residual solder on the outer layer to ensure the vacuum brazing effect of the parent material surface.

2. A flange vacuum brazing device for thickening tantalum diaphragm according to claim 1, characterized in that: A second shaft (101) is fixedly connected to the output end at the bottom of the servo motor (7), a first bevel gear (102) is fixedly mounted at the bottom of the second shaft (101), an auxiliary hanger (103) is fixedly mounted at the bottom of the servo motor (7), second bevel gears (104) corresponding to the first bevel gear (102) are movably mounted at both side ends of the bottom of the auxiliary hanger (103), and a third shaft (105) extending outward is fixedly connected at the center of the outer side surface of the second bevel gear (104), and the solder coating mechanism (8) comprises a side plate (81) fixedly connected to the outer surface of the third shaft (105) on each side.

3. A flange vacuum brazing device for thickening tantalum diaphragm according to claim 2, characterized in that: The outer surface of the side plate (81) is fixedly mounted with a second linear motor base (82) on the left and right with the third shaft rod (105) as a dividing point; and the linear output ends of the second linear motor bases (82) on both sides are fixedly mounted with symmetrically arranged movable cavity holders (83); a residual material recovery mechanism (85) is arranged on the outer surface of the movable cavity holder (83) on one side; and a soldering material nozzle (86) is arranged on the outer surface of the movable cavity holder (83) on the other side; and an infrared ranging module (84) is fixedly mounted on the side surface of the movable cavity holder (83) on each side, facing the two side ends of the side plate (81).

4. A flange vacuum brazing device for thickening tantalum diaphragm according to claim 3, characterized in that: The residual material recovery mechanism (85) comprises a hollow shell (851), and both sides of the hollow shell (851) are fixedly mounted with bevel side plates (852) that converge toward the middle end of the shell; and a notch sleeve block (853) is fixedly mounted on the surface of the bevel side plate (852) on each side at one end close to the inner side of the hollow shell (851), and a material conveying crawler (854) is fixedly mounted in the notch of the notch sleeve block (853); and a second electric servo telescopic rod (855) is fixedly mounted on the surface of the bevel side plate (852) at one end close to the outer side of the hollow shell (851).

5. A flange vacuum brazing device for thickening tantalum diaphragm according to claim 4, characterized in that: The output end of the second electric servo telescopic rod (855) extends outward along the side of the bevel side plate (852); and a pointed scraper (856) is fixedly installed on the output end, and an elastic film (857) is fixedly connected between the pointed scraper (856) and the notch sleeve block (853) on the same side, and interface covers (858) are fixedly installed at the positions of the two side corners of the cavity shell (851) aligned with the conveying end of the feeding crawler (854), and a conical partition (859) is fixedly installed at the middle position of the cavity shell (851), and suction modules (8510) that are in communication with the interface covers (858) on the same side are fixedly installed on both sides of the interior of the conical partition (859).

6. A flange vacuum brazing device for thickening tantalum diaphragm according to claim 5, characterized in that: The cooperative drive module (10) further comprises a straight reset rod (107) fixedly connected to the four side corners of the bottom of the servo motor (7); a disc plate (108) is fixedly mounted on the bottom of the straight reset rod (107); a circular opening is provided at the center of the circular plate (108); and a sealing ring (109) is fixedly mounted on the bottom edge of the circular opening; a reciprocating pull rod (1010) inserted into the sealing ring (109) is fixedly connected to the bottom axis of the first bevel gear (102); and a sealing rubber sleeve (1011) wrapped around the bottom of the sealing ring (109) is fixedly connected to the bottom of the reciprocating pull rod (1010); the track surface of the feeding track (854) is flush with the surface of the notch sleeve block (853); and the side of the pointed scraper (856) parallel to the inclined surface of the bevel side plate (852) is higher than the surface of the notch sleeve block (853) at the same side end.

7. A flange vacuum brazing device for thickening tantalum diaphragm according to claim 6, characterized in that: The solder recovery mechanism (9) comprises a first cavity tube (91) fixedly mounted on the bottom of the disc plate (108), the top of the first cavity tube (91) being open, the bottom of the first cavity tube (91) being fixedly mounted with a second cavity tube (92), the outer edge surfaces of the first cavity tube (91) and the second cavity tube (92) being both in a visible and transparent state, a leak hole partition plate (93) being fixedly connected at the middle position inside the first cavity tube (91), the bottom of the leak hole partition plate (93) being fixedly mounted with an elastic annular cavity (94); and a rod which is in communication with and corresponds to the elastic annular cavity (94) being fixedly connected to the side surface of the elastic annular cavity (94); and an adsorption conduit (95) passing out of the first cavity tube (91), and the bottom of the reciprocating pull rod (1010) being fixedly connected with a first shaft rod (96).

8. A flange vacuum brazing device for thickening tantalum diaphragm according to claim 7, characterized in that: A plurality of protrusions (106) are fixedly mounted on the outer edge surface of the second bevel gear (104); the bottom of the first shaft rod (96) is movably inserted into the interior of the second cavity tube (92); a first stirring blade (97) is fixedly mounted on the outer surface of the first shaft rod (96) at a position located above the leakage hole partition plate (93); a circular extrusion plate (98) is fixedly mounted on the outer surface of the first shaft rod (96) at a position located below the elastic circular ring cavity (94); a plurality of leakage stirring plates (99) are fixedly mounted on the bottom of the circular extrusion plate (98) in a circumferential arrangement; and a second stirring blade (910) is fixedly mounted on the outer surface of the first shaft rod (96) at a position located inside the second cavity tube (92).

9. A flange vacuum brazing device for thickening tantalum diaphragm according to claim 8, characterized in that: An elastic material delivery hose (87) is fixedly connected to the movable cavity holder (83) on one side of the cavity shell (851) and the movable cavity holder (83) on one side of the solder nozzle (86); the outer end of the elastic material delivery hose (87) on one side of the cavity shell (851) is connected to the top of the first cavity tube (91); the outer end of the elastic material delivery hose (87) on one side of the solder nozzle (86) is connected to the bottom of the second cavity tube (92); and a corresponding pump is arranged inside the second cavity tube (92) and on the connection end of the elastic material delivery hose (87).

10. A flange vacuum brazing device for thickening tantalum diaphragm according to claim 9, characterized in that: A communicating conduit is fixedly connected at the bottom side of the first cavity tube (91) and the top side of the second cavity tube (92); and an electric control valve (11) is arranged on the conduit.

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