A continuous atmosphere-protected brazing furnace

Abstract

The present invention relates to a vacuum brazing furnace, which comprises a brazing furnace body, a drying furnace communicated with the brazing furnace body, a carrying mechanism movably arranged inside the drying furnace and the brazing furnace body and used for carrying and positioning a first part and a second part, a feeding mechanism arranged outside the drying furnace and the brazing furnace body and used for filling the first part and the second part into the carrying mechanism, a conveying mechanism arranged between the feeding mechanism and the drying furnace and used for conveying the carrying mechanism to the feeding mechanism, the drying furnace or the brazing furnace body, and a coating mechanism arranged between the feeding mechanism and the carrying mechanism and used for evenly applying solder between the first part and the second part. The present invention solves the technical problems that the existing vacuum brazing furnace cannot produce continuously, the welding gaps are uneven, and the solder application is uneven.

Description

Technical Field

[0001] The present invention relates to the technical field of brazing, and particularly to a continuous atmosphere protection brazing furnace. Background Art

[0002] The brazing process in an atmosphere protection furnace is a process method of brazing in a hot-wall or cold-wall gas protection furnace under a specific protective atmosphere. In recent years in China, a large amount of research work has been done on atmosphere protection brazing furnaces. Generally, the commonly used equipment mainly includes a cold-wall inert protection atmosphere (such as nitrogen or argon) brazing furnace or a cold-wall reducing atmosphere (such as hydrogen) brazing furnace. It can protect parts from oxidation during the brazing process, is a relatively economical and practical brazing process method, does not use corrosive brazing fluxes, improves the quality of brazed joints, and is convenient for precise temperature control and the realization of mechanization and automation of the brazing process.

[0003] The patent document with the patent number CN201090852Y discloses a copper and stainless steel joint. It includes a copper component and a stainless steel component. One end of the copper component is provided with a groove, and one end of the stainless steel component is installed in the groove. A nickel-based brazing filler metal layer capable of fusing the copper component and the stainless steel component together is provided at the installation gap. The utility model has the advantages of high strength, large welding density, low cost, and easy popularization. The utility model provides a new product that uses a nickel-based brazing filler metal to weld copper and stainless steel together in a vacuum environment, thereby making the welding of copper and stainless steel relatively easy, and the welded parts can work in a high-temperature working environment.

[0004] However, in the actual use process, the inventor found that the existing continuous atmosphere protection brazing furnace cannot be continuously produced during use. It is necessary to manually or semi-automatically move two parts to be brazed to each working station for step-by-step processing, which will not only reduce the production efficiency, but also cause the welding gap between two parts to be brazed that are inserted into each other to be extremely uneven, thereby resulting in uneven brazing joints, reduced welding strength, and reduced finished product rate. In addition, during the existing welding process, the solder is usually manually applied, and it is extremely easy for the solder between two parts to be brazed to be uneven, which will further cause the situation of uneven brazing joints. Summary of the Invention

[0005] The object of the present invention is to address the deficiencies of the prior art. Through the mutual cooperation of a loading mechanism, a feeding mechanism, a conveying mechanism, and a coating mechanism, continuous production during the brazing process is achieved. By setting a fixing component to cooperate with the feeding of the feeding mechanism to fix and position the first part and the second part on the loading tray, it is convenient to cooperate with the coating mechanism to evenly apply solder on the first part and / or the second part. By setting a connecting component to connect and position two loading trays, and with the fixing and positioning functions of the fixing component, the first part and the second part can be accurately inserted into each other. Moreover, the entire brazing process can ensure uniform gaps. Thus, in the case of uniform solder and gaps, the brazing joints are uniform, the welding strength is high, and the yield rate is high. Thereby, the problems that the existing continuous atmosphere protection brazing furnace cannot carry out continuous production, the welding gaps are uneven, and the solder application is uneven are solved.

[0006] For the above technical problems, the following technical solutions are adopted: A continuous atmosphere protection brazing furnace, including a brazing furnace body, further including:

[0007] A loading mechanism disposed on the brazing furnace body and used for loading and positioning the first part and the second part, a feeding mechanism disposed outside the brazing furnace body and used for filling the first part and the second part into the loading mechanism, a conveying mechanism disposed outside the brazing furnace body and used for conveying the loading mechanism to the feeding mechanism or the brazing furnace body, and a coating mechanism disposed on the feeding mechanism and used for evenly applying solder between the first part and the second part;

[0008] The loading mechanism includes two loading trays detachably connected to the conveying mechanism and respectively used for loading the first part and the second part, a fixing component disposed on the loading trays and used for fixing and positioning the first part and the second part, and a connecting component disposed between the two loading trays and used for connecting and positioning the two loading trays.

[0009] Preferably, a plurality of loading grooves for loading the first part and / or the second part are arranged in an array on both of the two loading trays;

[0010] The fixing component includes a plurality of positioning plates that are arranged at equal intervals along the circumference of the bearing groove and are slidably arranged on the bearing disc in the direction of approaching or departing from the axis of the bearing groove and are used for clamping and positioning the first part and the second part, a guiding slide bar arranged on the positioning plate, a driving ring rotatably arranged on the bearing disc, a plurality of guiding grooves arranged on the driving ring and cooperating with the plurality of guiding slide bars as the driving ring rotates to force the plurality of positioning plates to slide simultaneously in the direction of approaching or departing from the axis of the bearing groove, a driving rod arranged on the driving ring, and a driving member arranged on the bearing disc and cooperating with the driving rod to drive the plurality of driving rings to rotate simultaneously.

[0011] Preferably, the driving member includes a connecting rod that is reciprocatingly arranged on the bearing disc, a plurality of driving grooves arranged on the connecting rod and cooperating with the plurality of driving rods as the connecting rod moves to drive the plurality of driving rings to rotate simultaneously, at least two push-pull rods that are hinged between the connecting rod and the bearing disc and are used to push the connecting rod to make a reciprocating motion, a push-pull groove arranged on the push-pull rod, a locking disc that is threadedly connected to the bearing disc, and an eccentric rod that is arranged at a position away from the axis on the locking disc and cooperates with the push-pull groove as the locking disc rotates to force the push-pull rod to rotate.

[0012] Preferably, the connecting component includes a female head and a male head that are respectively arranged on the two bearing discs and are detachably connected to each other;

[0013] The female head includes a plurality of connecting grooves arranged on one of the bearing discs;

[0014] The male head includes a plurality of positioning rods arranged on the other bearing disc and connecting the plurality of connecting grooves to position the two bearing discs, a guiding rod arranged on the positioning rod and used to guide the positioning rod to slide into the connecting groove, a connecting arm rotatably arranged on the guiding rod and / or the positioning rod, a first elastic member arranged on the connecting arm and used to force the connecting arm to push the two bearing discs to approach and connect to each other, and a locking member arranged on the positioning rod or the guiding rod and used to limit the rotation of the connecting arm.

[0015] Preferably, the locking member includes a locking rod that is slidably arranged inside the positioning rod and is inserted into a locking groove on the connecting arm to limit the rotation of the connecting arm, a push rod arranged on the locking rod and cooperating with the connecting groove to push the locking rod out of the locking groove when the connecting groove connects the positioning rod, and a second elastic member arranged inside the positioning rod and used to force the locking rod to be inserted into the locking groove.

[0016] The female connector further includes a pushing block disposed in the connection groove and configured to push the connecting arm to rotate until the locking groove aligns with the locking rod when the connection groove is detached from the positioning rod.

[0017] Preferably, the feeding mechanism includes two hoppers respectively disposed above the two carrying trays and respectively used for storing the first part and the second part, a discharging tray reciprocally movingly disposed at the discharging openings of the hoppers, a receiving groove disposed on the discharging tray and used for receiving parts, a positioning groove disposed on the discharging tray and communicating with the receiving groove, and a pressing rod vertically movably disposed above the discharging tray and used for pushing the parts to rotate until they are positioned with the positioning groove and then vertically fall into the carrying tray.

[0018] Preferably, the coating mechanism includes a discharging channel disposed inside the pressing rod, a discharging bin communicating with the discharging channel and configured to fill solder into the groove of the part while the pressing rod presses the part, a scraping plate rotatably disposed on the pressing rod and used for spreading the solder evenly on the inner bottom and side walls of the groove, a first limiting plate disposed on the scraping plate and configured to cooperate with the scraping plate to limit the solder to the outer periphery of the inner bottom of the groove, and a second limiting plate disposed on the scraping plate and configured to cooperate with the scraping plate to limit the solder to the lower end of the side wall of the groove.

[0019] Preferably, the conveying mechanism includes a first conveying assembly disposed outside the brazing furnace body and used for conveying the two carrying trays to be connected with each other after being fed by the feeding mechanism, a first grasping assembly disposed above the first conveying assembly and used for grasping the two connected carrying trays on the first conveying assembly to the loading end of the brazing furnace body, a second conveying assembly disposed outside the brazing furnace body and used for conveying the carrying mechanism from the unloading end of the brazing furnace body to the loading end, and a second grasping assembly disposed at the unloading end of the brazing furnace body and used for grasping the carrying mechanism at the unloading end of the brazing furnace body onto the second conveying assembly.

[0020] Preferably, the first conveying assembly includes a first frame, a first mounting bracket movably disposed on the first frame, two first grasping arms opening and closing on the first mounting bracket and configured to grip and position one of the carrying trays in cooperation with the positioning notch on the carrying tray, a second mounting bracket movably disposed on the first frame, two second grasping arms opening and closing above the second mounting bracket and configured to grip and position the other carrying tray in cooperation with the positioning notch, a turning frame disposed between the second mounting bracket and the second grasping arm and used for turning the second grasping arm to directly above the first grasping arm, and a first pushing member disposed on the turning frame and used for pushing the second grasping arm to move up and down.

[0021] Preferably, both the first grasping assembly and the second grasping assembly include a second frame, a support frame movably arranged on the second frame, a third mounting frame movably arranged on the support frame, two third grasping arms arranged below the third mounting frame and opening and closing to cooperate with the positioning notch for grasping and positioning the carrier plate, and a second pushing member arranged on the third mounting frame and used for pushing the third grasping arms to move up and down.

[0022] Advantages of the present invention:

[0023] (1) In the present invention, through the mutual cooperation of the carrier mechanism, the feeding mechanism, the conveying mechanism and the coating mechanism, continuous production in the brazing process is realized. By setting the fixing component to cooperate with the feeding of the feeding mechanism to fix and position the first part and the second part on the carrier plate, it is convenient to cooperate with the coating mechanism to evenly apply solder on the first part and / or the second part. By setting the connecting component to connect and position the two carrier plates, and with the fixing and positioning functions of the fixing component, the first part and the second part can be accurately inserted into each other. Moreover, the gap is uniform throughout the brazing process. Therefore, under the conditions of uniform solder and uniform gap, the brazing joints are uniform, the welding strength is high, and the yield is high.

[0024] (2) In the present invention, by setting that the fixing component includes the connecting groove of the female head to cooperate with the male head, the guiding rod and the positioning rod, the positioning of the two carrier plates is conveniently realized. By setting that the male head includes the connecting arm to cooperate with the first elastic member to push the two carrier plates to approach and connect with each other, not only the mutual connection of the two carrier plates is realized, but also when the solder melts during the welding process and a large gap is generated between the first part and the second part, the first elastic member cooperates with the connecting arm to continue to push the two carrier plates to approach each other to reduce the gap between the first part and the second part, so that the gap is uniform and the welding is stable.

[0025] (3) In the present invention, by setting the discharge bin to cooperate with the discharge channel to fill solder into the groove while the pressing rod of the discharging mechanism presses the part, the continuity of production is improved. By setting the scraping plate to cooperate with the first limiting plate and the second limiting plate to evenly apply the solder on the outer periphery of the inner bottom and the lower end of the side wall of the groove, it not only avoids too much solder at the inner bottom of the groove, which is difficult to extrude and flow, resulting in a large gap after welding between the two parts, but also avoids too much solder on the side wall of the groove, which causes the solder to be extruded out of the groove when the two parts are inserted, resulting in solder waste. In addition, when there is a through hole at the inner bottom of the groove, the first limiting plate avoids the solder flowing into the through hole, causing solder waste and blockage of the through hole.

[0026] In summary, the equipment has the effects of being able to continuously produce, having uniform welding gaps and uniform solder application, and is particularly suitable for the field of brazing technology. Description of the Drawings

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following-described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 It is a perspective view of a continuous atmosphere protection brazing furnace provided by the present invention.

[0029] Figure 2 It is a perspective view of a carrier mechanism provided by the present invention.

[0030] Figure 3 It is an exploded view of a fixing component provided by the present invention.

[0031] Figures 4 - 5 It is a process diagram of the fixing and positioning of a fixing component provided by the present invention.

[0032] Figure 6 It is a cross-sectional view of a connection component provided by the present invention.

[0033] Figures 7 - 8 It is a process diagram of the connection and positioning of a connection component provided by the present invention.

[0034] Figure 9 It is a perspective view of a loading mechanism and a coating mechanism provided by the present invention.

[0035] Figure 10 Provided by the present invention Figure 9 Local enlarged view at A in

[0036] Figure 11 It is a schematic diagram of a scraper cooperating with a first limit plate and a second limit plate to scrape and level the solder provided by the present invention.

[0037] Figure 12 It is a structural schematic diagram of a discharge tray provided by the present invention.

[0038] Figures 13 - 15 It is a process diagram of the loading and coating of a loading mechanism and a coating mechanism provided by the present invention.

[0039] Figure 16 It is a perspective view of a conveying mechanism provided by the present invention.

[0040] Figure 17 It is a structural schematic diagram of a first conveying component provided by the present invention.

[0041] Figures 18 - 19 It is a conveying process diagram of a first conveying component provided by the present invention.

[0042] Figure 20 Schematic structural diagram of the first grasping component provided by the present invention.

[0043] Figure 21 Schematic structural diagram of the first grasping arm provided by the present invention.

[0044] Figure 22 Schematic structural diagram of the parts after welding provided by the present invention. Specific embodiments

[0045] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0046] Embodiment 1

[0047] As Figures 1 - 2 , Figure 9 and Figure 22 shown, a continuous atmosphere protection brazing furnace includes a brazing furnace body 1, and further includes:

[0048] A loading mechanism 2 disposed on the brazing furnace body 1 and used for carrying and positioning the first part 6 and the second part 7, a feeding mechanism 3 disposed outside the brazing furnace body 1 and used for filling the first part 6 and the second part 7 into the loading mechanism 2, a conveying mechanism 4 disposed outside the brazing furnace body 1 and used for conveying the loading mechanism 2 to the feeding mechanism 3 or the brazing furnace body 1, and a coating mechanism 5 disposed on the feeding mechanism 3 and used for evenly applying solder 8 between the first part 6 and the second part 7;

[0049] The loading mechanism 2 includes two loading trays 21 detachably connected to the conveying mechanism 4 and respectively used for carrying the first part 6 and the second part 7, a fixing component 22 disposed on the loading trays 21 and used for fixing and positioning the first part 6 and the second part 7, and a connecting component 23 disposed between the two loading trays 21 and used for connecting and positioning the two loading trays 21.

[0050] In this embodiment, through the mutual cooperation of the loading mechanism 2, the feeding mechanism 3, the conveying mechanism 4 and the coating mechanism 5, continuous production in the brazing process is realized. After the first part 6 and the second part 7 are fixed and positioned on the loading tray 21 by setting the fixing component 22 to cooperate with the feeding of the feeding mechanism 3, it is convenient to cooperate with the coating mechanism 5 to evenly apply solder 8 on the first part 6 and / or the second part 7. By setting the connecting component 23 to connect and position the two loading trays 21, and under the fixing and positioning action of the fixing component 22, the first part 6 and the second part 7 can be accurately inserted into each other, and the gap can be ensured to be uniform throughout the brazing process. Furthermore, under the condition of uniform solder 8 and gap, the brazing joints are uniform, the welding strength is high, and the yield is high.

[0051] Specifically, first, the conveying mechanism 4 conveys the bearing mechanism 2 to the feeding mechanism 3, and after filling the first part 6 and the second part 7 on the two bearing trays 21 respectively through the feeding mechanism 3, the fixing component 22 is used to fix and position the first part 6 and the second part 7 on the bearing tray 21; then, the conveying mechanism 4 conveys the bearing tray 21 with the first part 6 and / or the second part 7 to the coating mechanism 5, and under the positioning action of the fixing component 22, the coating mechanism 5 evenly applies the solder 8 on the first part 6 and / or the second part 7; then, the conveying mechanism 4 conveys the two bearing trays 21 to approach each other and cooperates with the connecting component 23 to connect and position the two bearing trays 21. At this time, under the positioning action of the fixing component 22 and the connecting component 23, the first part 6 and the second part 7 are accurately inserted into each other, making the gap between them uniform; finally, the conveying mechanism 4 conveys the two connected bearing trays 21 into the brazing furnace body 1 for brazing, and then conveys them in the direction of the feeding mechanism 3 again. During this process, the connecting component 23 and the fixing component 22 are opened to unload the welded parts, realizing continuous production.

[0052] It should be noted that the number of the bearing mechanisms 2 is multiple, and the multiple bearing mechanisms 2 cooperate with the conveying mechanism 4 to move at each working station, so as to perform step-by-step processing simultaneously, improve the continuity of processing, and improve production efficiency.

[0053] Furthermore, as Figures 2 - 5 shown, a plurality of bearing grooves 211 for bearing the first part 6 and / or the second part 7 are arranged in an array on both bearing trays 21;

[0054] The fixing component 22 includes a plurality of positioning plates 221 that are arranged at equal intervals along the circumferential direction of the bearing groove 211 and slide along the direction close to or away from the axis of the bearing groove 211 on the bearing tray 21 and are used for clamping and positioning the first part 6 and the second part 7, a guiding slide bar 222 arranged on the positioning plate 221, a driving ring 223 rotatably arranged on the bearing tray 21, a plurality of guiding grooves 224 arranged on the driving ring 223 and used for forcing the plurality of positioning plates 221 to slide simultaneously in the direction close to or away from the axis of the bearing groove 211 in cooperation with the plurality of guiding slide bars 222 as the driving ring 223 rotates, a driving rod 225 arranged on the driving ring 223, and a driving member 226 arranged on the bearing tray 21 and used for driving the plurality of driving rings 223 to rotate simultaneously in cooperation with the driving rod 225.

[0055] In this embodiment, by arranging the driving ring 223 to cooperate with the guiding groove 224, a plurality of positioning plates 221 are forced to slide simultaneously in the direction close to or away from the axis of the bearing groove 211 along with the guiding slide rod 222. Then, the part can be pushed to the axis of the bearing groove 211 and fixed, thus completing the positioning. By arranging the driving member 226 to cooperate with the driving rod 225 to drive a plurality of driving rings 223 to rotate simultaneously to fix a plurality of parts, the production efficiency is improved.

[0056] It should be noted that the present application does not limit the connection structure between the positioning plate 221 and the bearing plate 21. Only one structure is provided below for reference. For example:

[0057] The bearing plate 21 is provided with a sliding groove 212, and the positioning plate 221 is provided with at least two slide rods 2211 slidably connected to the sliding groove 212, which not only realizes the connection between the positioning plate 221 and the bearing plate 21, but also improves the connection stability and restricts the rotation of the positioning plate 221.

[0058] Furthermore, as Figures 2 - 5 shown, the driving member 226 includes a connecting rod 2261 reciprocally arranged on the bearing plate, a plurality of driving grooves 2262 arranged on the connecting rod 2261 and used to drive a plurality of driving rings 223 to rotate simultaneously in cooperation with the connecting rod 2261, at least two push-pull rods 2263 hinged between the connecting rod 2261 and the bearing plate 21 and used to push the connecting rod 2261 to perform reciprocating motion, a push-pull groove 2264 arranged on the push-pull rod 2263, a locking disc 2265 threadedly connected to the bearing plate 21, and an eccentric rod 2266 arranged at a position far from the axis on the locking disc 2265 and used to force the push-pull rod 2263 to rotate in cooperation with the push-pull groove 2264 as the locking disc 2265 rotates.

[0059] In this embodiment, through the mutual transmission of the locking disc 2265, the eccentric rod 2266, the push-pull groove 2264, the push-pull rod 2263, the connecting rod 2261, and the driving groove 2262, the effect of driving a plurality of driving rings 223 to rotate simultaneously is achieved. The locking disc 2265 threadedly connected to the bearing plate 21 can lock each component and thus lock the fixing assembly 22 in the fixed position or the open position, which is convenient for the feeding of parts and the stable fixing of parts.

[0060] Specifically, when the locking disc 2265 rotates in one direction, the eccentric rod 2266 pushes the push-pull rod 2263 to rotate along with the push-pull groove 2264 while forcing the connecting rod 2261 to move. The driving groove 2262 cooperates with the driving rod 225 to drive the driving ring 223 to rotate until the positioning plate 221 fixes and positions the parts, and then the locking disc 2265 stops rotating to lock the fixing assembly 22 in the fixed position. When the locking disc 2265 rotates in the other direction, the eccentric rod 2266, the connecting rod 2261, and the driving ring 223 move in the opposite direction until the positioning plate 221 opens, and then the locking disc 2265 stops rotating to lock the fixing assembly 22 in the open position.

[0061] It should be noted that the number of the connecting rods 2261 is two, and the two connecting rods 2261 are respectively hinged to both ends of the push-pull rod 2263. Correspondingly, the number of the driving rods 225 on the driving ring 223 is two, which improves the connection and driving stability between the connecting rod 2261 and the driving ring 223.

[0062] Furthermore, as Figure 2 and Figures 6 - 8 shown, the connecting assembly 23 includes a female head 231 and a male head 232 which are respectively arranged on two bearing discs 21 and are detachably connected to each other;

[0063] The female head 231 includes a plurality of connecting grooves 2311 arranged on one bearing disc 21;

[0064] The male head 232 includes a plurality of positioning rods 2321 arranged on the other bearing disc 21 and connected to the plurality of connecting grooves 2311 for positioning the two bearing discs 21, a guiding rod 2322 arranged on the positioning rod 2321 and used for guiding the positioning rod 2321 to slide into the connecting groove 2311, a connecting arm 2323 rotatably arranged on the guiding rod 2322 and / or the positioning rod 2321, a first elastic member arranged on the connecting arm 2323 and used for forcing the connecting arm 2323 to push the two bearing discs 21 to approach and connect with each other, and a locking member 233 arranged on the positioning rod 2321 or the guiding rod 2322 and used for restricting the rotation of the connecting arm 2323.

[0065] In this embodiment, by providing the connecting groove 2311 to cooperate with the guiding rod 2322 and the positioning rod 2321, the positioning of the two bearing discs 21 is conveniently realized. By providing the connecting arm 2323 to cooperate with the first elastic member to push the two bearing discs 21 to approach and connect with each other, not only the mutual connection of the two bearing discs 21 is realized, but also when the solder 8 melts during the welding process, resulting in a large gap between the first part 6 and the second part 7, the first elastic member cooperates with the connecting arm 2323 to continue to push the two bearing discs 21 to approach each other to reduce the gap between the first part 6 and the second part 7, making the gap uniform and the welding stable.

[0066] Specifically, when two carrier plates 21 are connected to each other, the guide rod 2322 is inserted into the connection groove 2311 until the guide positioning rod 2321 is inserted into the connection groove 2311 to position the two carrier plates 21. Then, the locking member 233 is opened, and the connecting arm 2323 pushes the two carrier plates 21 closer to each other and connects them under the action of the first elastic member. When the two carrier plates 21 are disassembled, after the connection groove 2311 forces the connecting arm 2323 to rotate into the positioning rod 2321 or the guide rod 2322, the locking member 233 restricts the rotation of the connecting arm 2323, facilitating the next connection between the two carrier plates 21.

[0067] It should be noted that the connection grooves 2311 and the positioning rods 2321 are arranged at equal intervals along the circumferential direction of the carrier plate 21, so that the force for the connecting arm 2323 to push the two carrier plates 21 to connect is more uniform, thereby improving the connection stability.

[0068] Furthermore, as Figures 6 - 8 shown, the locking member 233 includes a locking rod 2331 that is slidably disposed inside the positioning rod 2321 and inserted into the locking groove 2324 on the connecting arm 2323 to restrict the rotation of the connecting arm 2323, a push rod 2332 disposed on the locking rod 2331 and cooperating with the connection groove 2311 to push the locking rod 2331 out of the locking groove 2324 when the connection groove 2311 is connected to the positioning rod 2321, and a second elastic member 2333 disposed inside the positioning rod 2321 and used to force the locking rod 2331 to be inserted into the locking groove 2324.

[0069] The female head 231 further includes a push block 2312 disposed in the connection groove 2311 and used to push the connecting arm 2323 to rotate until the locking groove 2324 is aligned with the locking rod 2331 when the connection groove 2311 and the positioning rod 2321 are disassembled.

[0070] In this embodiment, the locking function of the connecting arm 2323 is realized by setting the locking rod 2331 to cooperate with the locking groove 2324. By setting the push rod 2332, when the connection groove 2311 is connected to the positioning rod 2321, the connection groove 2311 can push the locking rod 2331 to slide away from the locking groove 2324 along with the push rod 2332. By setting the push block 2312 in the connection groove 2311, when the connection groove 2311 and the positioning rod 2321 are disassembled, the push block 2312 can completely push the connecting arm 2323 into the guide rod 2322 so that the locking groove 2324 is aligned with the locking rod 2331. This not only avoids the interference of the connecting arm 2323 with the next connection between the guide rod 2322 and the connection groove 2311, but also enables the locking rod 2331 to automatically insert into the elastic groove under the action of the second elastic member 2333.

[0071] It should be noted that the first elastic member (not shown in the drawings) and the second elastic member 2333 are spiral springs, torsion springs, etc., and their structures and installation methods are all prior arts, so no detailed description will be given here.

[0072] Furthermore, as Figures 9 - 15 shown, the feeding mechanism 3 includes two hoppers 31 respectively arranged above the two bearing plates 21 and respectively used for storing the first part 6 and the second part 7, a discharge plate 32 reciprocally movingly arranged at the discharge port 311 of each hopper 31, a receiving groove 33 arranged on the discharge plate 32 and used for accommodating the parts, a positioning groove 34 arranged on the discharge plate 32 and communicating with the receiving groove 33, and a pressing rod 35 arranged above the discharge plate 32 and moving up and down and used for pushing the part to rotate until it is positioned with the positioning groove 34 and then vertically fall into the bearing plate 21.

[0073] In this embodiment, by setting the hopper 31 in cooperation with the discharge plate 32, the receiving groove 33, the positioning groove 34 and the pressing rod 35, the automatic feeding of the parts is realized.

[0074] Specifically, when the discharge plate 32 slides to align the receiving groove 33 with the discharge port 311, the part falls into the receiving groove 33. When the discharge plate 32 moves in the direction close to the pressing rod 35, the receiving groove 33 extends out from below the hopper 31, and the discharge plate 32 blocks the discharge port 311 to prevent discharging. When the pressing rod 35 presses the part downward, the part rotates from the receiving groove 33 to the positioning groove 34 and is positioned by the clamping during the movement between the pressing rod 35 and the discharge plate 32. Then, the discharge plate 32 moves in the direction away from the pressing rod 35, and the part vertically falls into the bearing plate 21.

[0075] It should be noted that when the positioning plate 221 positions the part after the part falls into the bearing groove 211 of the bearing plate 21, the pressing rod 35 is used to push the part to closely fit with the bottom of the bearing groove 211, so as to prevent the part from separating from the bottom of the bearing groove 211 when the positioning plate 221 positions the part, resulting in inaccurate positioning.

[0076] Furthermore, as Figures 9 - 15 and Figure 22 shown, the coating mechanism 5 includes a discharge channel 51 arranged inside the pressing rod 35, a discharge bin 52 communicating with the discharge channel 51 and used for filling the solder 8 into the groove 71 of the part while the pressing rod 35 presses the part, a scraper 53 rotatably arranged on the pressing rod 35 and used for scraping the solder 8 evenly on the inner bottom and side walls of the groove 71, a first limiting plate 54 arranged on the scraper 53 and used for cooperating with the scraper 53 to limit the solder 8 to the outer periphery of the inner bottom of the groove 71, and a second limiting plate 55 arranged on the scraper 53 and used for cooperating with the scraper 53 to limit the solder 8 to the lower end of the side wall of the groove 71.

[0077] In this embodiment, by setting the discharge bin 52 to cooperate with the discharge channel 51 to fill the solder 8 into the groove 71 while the pressing rod 35 presses the parts, the production continuity is improved. By setting the scraper 53 to cooperate with the first limit plate 54 and the second limit plate 55 to evenly apply the solder 8 on the outer periphery of the inner bottom of the groove 71 and the lower end of the side wall, it not only avoids too much solder 8 at the inner bottom of the groove 71, which is difficult to extrude and flow, resulting in a large gap between the two parts after welding, but also avoids too much solder 8 on the side wall of the groove 71, which causes the solder 8 to be extruded from the groove 71 when the two parts are inserted, resulting in waste of solder 8. In addition, when there is a through hole at the inner bottom of the groove 71, the first limit plate 54 prevents the solder 8 from flowing into the through hole, causing waste of solder 8 and blockage of the through hole.

[0078] It should be noted that the scraper 53 and the pressing rod 35 are connected by an extension frame 56, so that while the discharge bin 52 fills the solder 8 into one part, the scraper 53 can scrape and level the solder 8 in the other part, further improving the production continuity.

[0079] In addition, the discharge bin 52 transports the solder 8 into the discharge channel 51 through a pump and a pipeline, and its itself and the installation method are both prior arts, and will not be elaborated in detail here.

[0080] Furthermore, as Figures 16 - 22 shown, the conveying mechanism 4 includes a first conveying component 41 arranged outside the brazing furnace body 1 and used for conveying two carrier trays 21 that are connected to each other after being loaded by the loading mechanism 3, a first grasping component 42 arranged above the first conveying component 41 and used for grasping the two carrier trays 21 connected to each other on the first conveying component 41 to the loading end 11 of the brazing furnace body 1, a second conveying component 43 arranged outside the brazing furnace body 1 and used for conveying the carrying mechanism 2 from the unloading end 12 of the brazing furnace body 1 to the loading end 11, and a second grasping component 44 arranged at the unloading end 12 of the brazing furnace body 1 and used for grasping the carrying mechanism 2 at the unloading end 12 of the brazing furnace body 1 onto the second conveying component 43.

[0081] In this embodiment, by setting the first conveying component 41 to cooperate with the loading mechanism 3 and the coating mechanism, the assembly and insertion between the first part 6 and the second part 7 are realized. By setting the first conveying component 41, the first grasping component 42, the second conveying component 43, and the second grasping component 44 to cooperate with each other to convey the carrying mechanism 2 to move at each station, the continuous production of the brazing process is realized.

[0082] It should be noted that the second conveying component 43 can be a conveyor belt, and positioning plate structures 431 for positioning the carrying mechanism 2 in cooperation with the carrying slots 211 are provided on both the second conveying mechanism 4 and the conveying mechanism 13 for conveying the carrying mechanism 2 in the brazing furnace body 1.

[0083] Further, as Figures 16 - 19 shown, the first conveying assembly 41 includes a first frame 411, a first mounting bracket 412 movably arranged on the first frame 411, two first gripping arms 413 that are openably and closably arranged on the first mounting bracket 412 and cooperate with the positioning notches 213 on the carrier plate 21 to grip and position one carrier plate 21, a second mounting bracket 414 movably arranged on the first frame 411, two second gripping arms 415 that are openably and closably arranged above the second mounting bracket 414 and cooperate with the positioning notches 213 to grip and position the other carrier plate 21, a turning frame 416 arranged between the second mounting bracket 414 and the second gripping arms 415 and used to turn the second gripping arms 415 directly above the first gripping arms 413, and a first pushing member 417 arranged on the turning frame 416 and used to push the second gripping arms 415 to move up and down.

[0084] In this embodiment, by arranging the first gripping arms 413 and the second gripping arms 415 to cooperate with the positioning notches 213, the carrier plate 21 can be gripped and positioned, so that it is convenient to cooperate with the feeding mechanism 3 and the coating mechanism 5 to perform feeding and coating work when the first mounting bracket 412 and the second mounting bracket 414 move. By arranging the turning frame 416 to cooperate with the first pushing member 417, the two carrier plates 21 can be connected together.

[0085] Specifically, when feeding the loading mechanism 2, first, the first gripping arms 413 and the second gripping arms 415 cooperate with the positioning notches 213 to grip and position the two carrier plates 21. Then, the first mounting bracket 412 and the second mounting bracket 414 move and cooperate with the feeding mechanism 3 to respectively fill the first part 6 and the second part 7 onto the two carrier plates 21 and cooperate with the coating mechanism 5 to evenly apply the solder 8 on the first part 6 and / or the second part 7. Finally, the turning frame 416 rotates so that the first part 6 and the second part 7 are aligned, and then the first pushing member 417 cooperates with the connecting assembly 23 to connect the two carrier plates 21 while the first part 6 and the second part 7 are accurately inserted into each other, completing the feeding;

[0086] When discharging the loading mechanism 2, first, the fixing assembly 22 on the lower carrier plate 21 among the two carrier plates 21 is opened first. Then, the first pushing member 417 cooperates with the connecting assembly 23 to disassemble the two carrier plates 21. The upper carrier plate 21 is fixedly connected with the welded parts. Finally, when the first mounting bracket 412 and the second mounting bracket move away from each other, the fixing assembly 22 on the upper carrier plate 21 is opened, and the welded parts fall into the storage box 419 below the first frame 411, completing the discharging.

[0087] It should be noted that in order to ensure the clamping force of the positioning plate 221 on the parts, the driving source for driving the rotation of the locking disc 2265 is an electric torque wrench 418, and the torque wrench 418 is arranged on the first mounting bracket 412 and the first pushing member 417, which enables the positioning plate 221 to be driven to clamp or release the parts in a timely manner according to the conveying requirements of the first conveying assembly 41 in cooperation with the torque wrench 418.

[0088] Furthermore, as Figure 16 and Figures 20 - 21 shown, both the first grasping assembly 42 and the second grasping assembly 44 include a second frame 421, a support frame 422 movably arranged on the second frame 421, a third mounting bracket movably arranged on the support frame 422, two third grasping arms 423 which are arranged in an opening and closing manner below the third mounting bracket and cooperate with the positioning notch 213 to grasp and position the bearing plate 21, and a second pushing member 424 arranged on the third mounting bracket and used to push the third grasping arm 423 to move up and down.

[0089] In this embodiment, by arranging the movable support frame 422, the interference of the support frame 422 on the operation of the first conveying assembly 41 is avoided. At the same time, compared with the fixed equivalent support frame 422, the moving range of the third grasping arm 423 is increased, the occupied space is reduced, and the grasping range is improved.

[0090] It should be noted that the first pushing member 417 and the second pushing member 424 can be telescopic rods, and the second grasping arm 415 and the third grasping arm 423 are both arranged at the telescopic ends of the telescopic rods;

[0091] In addition, the specific structures of the first grasping arm 413, the second grasping arm 415 and the third grasping arm 423 are not limited in this application. The following only provides a structure for reference. For example:

[0092] The first grasping arm 413, the second grasping arm 415 and the third grasping arm 423 all include two first grasping plates 4131 and second grasping plates 4132 which are arranged at intervals, and the length of the first grasping plate 4131 is greater than the length of the second grasping plate 4132. When grasping the bearing plate 21, the first grasping plate 4131 first positions the bearing plate 21, and then the second grasping plate 4132 moves in the direction close to the bearing plate 21 along with the first grasping plate 4131, and then clamps and fixes the bearing plate 21 between the first grasping plate 4131 and the second grasping plate 4132.

[0093] Working process:

[0094] First of all, the conveying mechanism 4 conveys the bearing mechanism 2 to the feeding mechanism 3, and the first part 6 and the second part 7 are filled on the two bearing plates 21 respectively through the feeding mechanism 3, and then the first part 6 and the second part 7 are fixed and positioned on the bearing plate 21 in cooperation with the fixing component 22;

[0095] Next, the conveying mechanism 4 conveys the carrier tray 21 with the first part 6 and / or the second part 7 to the coating mechanism 5, and under the positioning action of the fixing assembly 22, the coating mechanism 5 evenly applies solder 8 to the first part 6 and / or the second part 7.

[0096] Then, the conveying mechanism 4 conveys two carrier trays 21 to be close to each other and cooperates with the connecting assembly 23 to connect and position the two carrier trays 21. At this time, under the positioning action of the fixing assembly 22 and the connecting assembly 23, the first part 6 and the second part 7 are accurately inserted into each other, and the gap between them is made uniform.

[0097] Finally, the conveying mechanism 4 conveys the two connected carrier trays 21 into the brazing furnace body 1 for brazing, then conveys them in the direction of the loading mechanism 3 again, and during this process, cooperates with the opening of the connecting assembly 23 and the fixing assembly 22 to unload the welded parts, realizing continuous production.

[0098] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "front and back", "left and right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0099] Certainly, in this technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of one element can be one, while in other embodiments, the number of this element can be multiple. The term "one" should not be construed as a limitation on the number.

[0100] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any change or replacement that can be easily thought of by those skilled in the art under the technical disclosure of the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A continuous atmosphere protection brazing furnace, comprising a brazing furnace body, characterized in that: Also includes: A carrying mechanism disposed on the brazing furnace body and used for carrying and positioning the first part and the second part, a loading mechanism disposed outside the brazing furnace body and used for filling the first part and the second part into the carrying mechanism, a conveying mechanism disposed outside the brazing furnace body and used for conveying the carrying mechanism to the loading mechanism or the brazing furnace body, and a coating mechanism disposed on the loading mechanism and used for evenly coating solder between the first part and the second part; The carrying mechanism includes two carrying plates detachably connected to the conveying mechanism and used to carry the first part and the second part respectively, a fixing assembly disposed on the carrying plates and used to fix and position the first part and the second part, and a connecting assembly disposed between the two carrying plates and used to connect and position the two carrying plates; The two carrying plates are both provided with a plurality of carrying slots in an array for carrying the first part and / or the second part; The fixing assembly includes a plurality of positioning plates which are arranged at equal intervals along the circumference of the bearing slot and are slidably arranged on the bearing plate along the axial direction close to or away from the bearing slot and are used to clamp and position the first part and the second part, a guide slide bar arranged on the positioning plate, a driving ring rotatably arranged on the bearing plate, a plurality of guide grooves arranged on the driving ring and cooperating with the plurality of guide slide bars with the rotation of the driving ring to force the plurality of positioning plates to slide towards or away from the axial direction of the bearing slot at the same time, a driving rod arranged on the driving ring, and a driving member arranged on the bearing plate and cooperating with the driving rod to drive the plurality of driving rings to rotate simultaneously; The connection assembly comprises a female head and a male head which are respectively arranged on the two carrying plates and are detachably connected to each other; The female head includes a plurality of connection slots disposed on one of the carrier plates; The male head includes a plurality of positioning rods which are arranged on another of the supporting plates and connected to a plurality of the connecting grooves for positioning the two supporting plates, a guide rod which is arranged on the positioning rod and used to guide the positioning rod to slide into the connecting groove, a connecting arm which is rotatably arranged on the guide rod and / or the positioning rod, a first elastic member which is arranged on the connecting arm and used to force the connecting arm to push the two supporting plates to be close to each other for connection, and a locking member which is arranged on the positioning rod or the guide rod and used to limit the rotation of the connecting arm.

2. A continuous atmosphere protection brazing furnace according to claim 1, characterized in that: The driving member includes a connecting rod reciprocatingly arranged on the supporting plate, a plurality of driving grooves arranged on the connecting rod and cooperating with the plurality of driving rods as the connecting rod moves to drive the plurality of driving rings to rotate simultaneously, at least two push-pull rods hinged on the connecting rod and the supporting plate and used to push the connecting rod to reciprocate, a push-pull groove arranged on the push-pull rod, a locking plate threadedly connected to the supporting plate, and an eccentric rod arranged at a position on the locking plate away from the axis and cooperating with the push-pull groove as the locking plate rotates to force the push-pull rod to rotate.

3. A continuous atmosphere protection brazing furnace according to claim 1, characterized in that: The locking member includes a locking rod slidably arranged inside the positioning rod and inserted into the locking groove on the connecting arm to limit the rotation of the connecting arm, a pushing rod arranged on the locking rod and cooperating with the connecting groove to push the locking rod out of the locking groove when the connecting groove is connected to the positioning rod, and a second elastic member arranged in the positioning rod and used to force the locking rod to be inserted into the locking groove; The female head also includes a pushing block which is arranged in the connecting groove and is used to push the connecting arm to rotate until the locking groove is aligned with the locking rod when the connecting groove and the positioning rod are disassembled.

4. A continuous atmosphere protection brazing furnace according to claim 1, characterized in that: The loading mechanism includes two hoppers respectively arranged above the two supporting plates and used to store the first part and the second part respectively, a discharge tray reciprocatingly arranged at the discharge ports of each hopper, a receiving groove arranged on the discharge tray and used to receive the parts, a positioning groove arranged on the discharge tray and connected to the receiving groove, and a pressing rod arranged above the discharge tray so as to move up and down and used to push the parts to rotate until they are positioned in the positioning groove and then fall vertically into the supporting plate.

5. A continuous atmosphere protection brazing furnace according to claim 4, characterized in that: The coating mechanism includes a discharge channel arranged inside the pressing rod, a discharge bin connected to the discharge channel and cooperating with the pressing rod to press the part while filling solder into the groove of the part, a scraper rotatably arranged on the pressing rod and used to evenly scrape the solder on the inner bottom and side walls of the groove, a first limiting plate arranged on the scraper and used to cooperate with the scraper to limit the solder to the outer periphery of the inner bottom of the groove, and a second limiting plate arranged on the scraper and used to cooperate with the scraper to limit the solder to the lower end of the side wall of the groove.

6. The continuous atmosphere protection brazing furnace according to claim 1, characterized in that: The conveying mechanism includes a first conveying component arranged on the outside of the brazing furnace body and used to convey the two carrying plates to be connected to each other after cooperating with the loading mechanism to load the materials, a first grabbing component arranged above the first conveying component and used to grab the two carrying plates connected to each other on the first conveying component to the loading end of the brazing furnace body, a second conveying component arranged on the outside of the brazing furnace body and used to convey the carrying mechanism from the unloading end of the brazing furnace body to the loading end, and a second grabbing component arranged at the unloading end of the brazing furnace body and used to grab the carrying mechanism at the unloading end of the brazing furnace body to the second conveying component.

7. A continuous atmosphere protection brazing furnace according to claim 6, characterized in that: The first conveying assembly includes a first frame, a first mounting frame movably arranged on the first frame, two first grabbing arms that are opened and closed on the first mounting frame and cooperate with the positioning notches on the carrying plate to grasp and position one of the carrying plates, a second mounting frame movably arranged on the first frame, two second grabbing arms that are opened and closed above the second mounting frame and cooperate with the positioning notches to grasp and position another of the carrying plates, a flipping frame arranged between the second mounting frame and the second grabbing arm and used to flip the second grabbing arm to directly above the first grabbing arm, and a first pushing member arranged on the flipping frame and used to push the second grabbing arm to move up and down.

8. The continuous atmosphere protection brazing furnace according to claim 7, characterized in that: The first grabbing assembly and the second grabbing assembly both include a second frame, a support frame movably arranged on the second frame, a third mounting frame movably arranged on the support frame, two third grabbing arms opened and closed and arranged below the third mounting frame and cooperating with the positioning notch for grasping and positioning the carrying plate, and a second pushing member arranged on the third mounting frame and used for pushing the third grabbing arm to move up and down.

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