A brazing apparatus and welding process for semiconductor heating plates

Abstract

The application relates to the technical field of welding equipment, and discloses a brazing equipment and a welding process for a semiconductor heating disc. When brazing the heating disc welding piece, the heating disc welding piece is placed flat in a placing disc through cooperation of a clamping assembly and a driving assembly; a support spring pushes a top pressing plate to move downwards, a rotating plate under the top pressing plate is in contact with the upper end of the heating disc welding piece, a downward pressure is applied to the heating disc welding piece, the heating disc welding piece is fixed in the placing disc, and the heating disc welding piece is driven by the placing disc driven by the driving assembly under cooperation of the rotating plate during the welding process, and rotates on a welding table, so that the melted filler metal can be uniformly distributed at the welding position of the heating disc welding piece, the melted filler metal solution can be prevented from flowing downwards under the action of gravity to generate a welding bump, and the welding quality of the heating disc welding piece is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding equipment, in particular to a brazing equipment and a welding process for a semiconductor heating disc. BACKGROUND

[0002] The semiconductor heating disc is a device specially used for heat treatment of silicon wafers in a semiconductor manufacturing process. When manufacturing the heating disc, the constituent parts of the heating disc need to be welded.

[0003] Chinese patent CN118492827B discloses a welding equipment for a heating disc of a drying machine. The equipment is provided with a supporting assembly and a rotating assembly, so that the heating disc and the rotating shaft rotate by themselves during spot welding, reducing the labor intensity of workers during operation and improving the welding precision. However, the high temperature during spot welding can cause deformation of the welded part, so it is not suitable for welding of the semiconductor heating disc with high precision requirements. Using brazing with lower temperature can solve the problem, but during brazing in the prior art, the welded part is placed horizontally on the equipment, and the molten brazing solution flows downward under the action of gravity to the lower part of the welding position, thereby producing a welding bump, so that the brazing solution is unevenly distributed at the welding position, resulting in poor welding quality. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a brazing equipment and a welding process for a semiconductor heating disc to overcome the above technical problems existing in the prior art.

[0005] To solve the above technical problems, the present application provides the following technical scheme: a brazing equipment and a welding process for a semiconductor heating disc, comprising a main body and a welding table installed on the main body, the main body is provided with a clamping assembly, a driving assembly, a feeding assembly and a welding assembly, the clamping assembly comprises a placing disc and an upper pressing plate, the placing disc is installed on the welding table, the upper pressing plate is arranged above the placing disc, the placing disc is used for containing heating disc welding pieces, the upper pressing plate can push the heating disc welding pieces from above to below, so that the heating disc welding pieces are tightly pressed on the placing disc, the driving assembly is arranged at the bottom of the welding table and matched with the placing disc, the driving assembly can drive the placing disc to rotate with the heating disc welding pieces on the welding table, the feeding assembly comprises a filler metal box, a pushing plate and a pushing rod, the filler metal box is installed on the welding table, a plurality of filler metal rods are stored in the filler metal box, and the pushing plate and the pushing rod are sequentially installed in the filler metal box, the pushing plate can move linearly in the filler metal box, when the pushing plate moves away from the heating disc welding pieces, the pushing rod can send one of the filler metal rods in the filler metal box to the pushing plate, and when the pushing plate moves towards the heating disc welding pieces, the pushing plate can push the filler metal rod to extend out of the filler metal box and press on the welding position of the heating disc welding pieces, and the welding assembly comprises a welding gun, the welding gun can melt the filler metal on the welding position of the heating disc welding pieces for welding.

[0006] Preferably, the welding table is fixedly installed on the main body, the placing disc is rotatably installed on the upper side of the welding table, a rubber gasket is fixedly connected to the inner wall of the placing disc, the bottom of the heating disc welding piece is placed in the gasket, and the gasket can prevent the heating disc welding piece from moving in the placing disc.

[0007] Preferably, the clamping assembly further comprises a fixing frame, the fixing frame is fixedly installed on the welding table, an installation sleeve is fixedly connected above the fixing frame, the installation sleeve is located above the placing disc, the opening of the installation sleeve corresponds to the placing disc, and a limiting block is fixedly connected to the inner wall of the installation sleeve.

[0008] Preferably, a limiting groove is formed in the side edge of the upper pressing plate, the upper pressing plate is movably installed in the installation sleeve, the limiting block is slidably installed in the limiting groove, a supporting spring is fixedly connected between the upper side of the upper pressing plate and the top of the installation sleeve, the supporting spring initially pushes the upper pressing plate to slide to the bottom of the installation sleeve, a rotating plate is rotatably connected to the bottom of the upper pressing plate, when the upper pressing plate is located at the bottom of the installation sleeve, the rotating plate extends out of the opening of the installation sleeve, and a friction pad is fixedly connected to the bottom side of the rotating plate.

[0009] Preferably, the driving assembly comprises a driving motor and a connecting shaft, the driving motor is fixedly connected on the welding table, the upper end of the connecting shaft is coaxially fixedly connected with the bottom of the placing disc, the lower end of the connecting shaft is rotatably connected with the bottom of the welding table, and an output shaft of the driving motor and the connecting shaft are coaxially fixedly connected with a belt pulley.

[0010] Preferably, the feeding assembly further comprises a mounting seat, the mounting seat is fixedly connected on the side of the welding table, the solder box is rotatably mounted on the mounting seat, the feeding groove and the feeding channel are respectively formed in the solder box, the upper side of the feeding channel is communicated with the upper side of the feeding groove, the feeding groove is matched with the solder rod, the spring groove is formed below the feeding groove, the top of the spring groove is communicated with the bottom of the feeding groove, the upper side of the spring groove is communicated with the lower side of the feeding channel, the feeding spring is arranged in the spring groove, one end of the feeding spring is fixedly connected with the inner wall of the spring groove, the notch is formed above the feeding groove, the notch penetrates through the top of the solder box and is communicated with the top of the feeding groove.

[0011] Preferably, the pushing plate is slidably mounted in the feeding groove, the upper side of the pushing plate is fixedly connected with a marker block, the marker block extends out of the top of the solder box through the notch, the side, away from the placing disc, of the pushing plate is fixedly connected with a connecting rod, the connecting rod is located in the feeding groove, the end, away from the pushing plate, of the connecting rod is fixedly connected with a pulling block, the pulling block extends out of the upper end of the solder box from the notch, the lower end of the pushing plate extends into the spring groove, and the lower end of the pushing plate is fixedly connected with the other end of the feeding spring, the side, facing the feeding channel, of the lower end of the pushing plate is fixedly connected with a wedge-shaped protrusion, and the wedge-shaped protrusion is located at the bottom of the feeding channel.

[0012] Preferably, the top of the solder box is fixedly connected with a storage box, the storage box is used for storing the solder rod, the bottom of the side, close to the feeding groove, of the storage box is provided with a discharging port, the discharging port is communicated with the feeding channel, and the discharging port can only pass one solder rod at a time, the bottom of the storage box is an inclined slope towards the discharging port, a pushing rod is rotatably mounted on the inner wall of the side, close to the feeding groove, of the feeding channel, a groove is formed in the pushing rod, the groove is located below the discharging port, and a baffle is fixedly connected with the end, away from the marker block, of the pushing rod.

[0013] Preferably, the welding assembly further comprises a mounting frame, the mounting frame is fixedly connected on the main body and located on the side of the welding table, the upper end of the mounting frame is fixedly mounted with an electric lifting rod, and the welding gun is matched with the output shaft of the electric lifting rod.

[0014] Preferably, a welding process for a semiconductor heating disc uses a brazing device.

[0015] Compared with the prior art, the present application provides a brazing device and a welding process for a semiconductor heating disc, which has the following beneficial effects:

[0016] 1. The brazing device and the welding process for a semiconductor heating disc, by the cooperation of the clamping assembly and the driving assembly, the heating disc welding piece is placed flat in the placement disc when brazing the heating disc welding piece, the support spring pushes the upper pressing plate to move down, the rotating plate under the upper pressing plate is in contact with the upper end of the heating disc welding piece, the downward pressure is applied to the heating disc welding piece, so that the heating disc welding piece is fixed in the placement disc, and in the welding process, the heating disc welding piece can be driven by the placement disc driven by the driving assembly under the cooperation of the rotating plate, and rotate on the welding table, so that the melted filler metal can be uniformly distributed at the welding position of the heating disc welding piece, avoiding that the melted filler metal solution flows downward under the action of gravity to generate a welding tumor, thereby improving the welding quality of the heating disc welding piece.

[0017] 2. The brazing device and the welding process for a semiconductor heating disc, by the setting of the feeding assembly, a sufficient amount of filler metal rod is stored in the storage tank before brazing, when the heating disc welding piece needs to be welded, the pushing plate is pulled to move, the pushing plate leaks the space at the communication place of the feeding groove and the feeding groove, and drives the stirring rod to rotate to the feeding groove, the filler metal rod in the groove is filled into the feeding groove, then the pushing plate is loosened, the feeding spring pushes the filler metal rod in the feeding groove out of the filler metal box through the pushing plate, so that the filler metal rod is in contact with the welding position of the heating disc welding piece, facilitating the welding of the heating disc welding piece, as the filler metal rod is consumed, the feeding spring can push the continuously consumed filler metal rod through the pushing plate to be in contact with the welding position, thereby ensuring the normal welding, when a new filler metal rod needs to be replaced, the pushing plate is pulled to move the stroke and then released, the filler metal rod can be quickly replaced, thereby improving the welding efficiency of the heating disc welding piece. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of the three-dimensional structure of the present application;

[0019] Figure 2 is a schematic view of the side surface structure of the clamping assembly of the present application;

[0020] Figure 3 is a schematic view of the internal structure of the mounting sleeve of the present application;

[0021] Figure 4 is a schematic view of the A part of the enlarged structure of the present application; Figure 3

[0022] Figure 5 ​It is the schematic diagram of side structure of the welding assembly of the application;

[0023] Figure 6 It is the schematic diagram of internal plane structure of the solder box of the application;

[0024] Figure 7 It is Figure 6 The schematic diagram of partial enlargement structure at B of

[0025] Figure 8 It is the position relation diagram of internal structure of the solder box of the application;

[0026] Figure 9 It is Figure 8 The schematic diagram of partial enlargement structure at C of

[0027] Figure 10 It is Figure 8 The schematic diagram of partial enlargement structure at D of

[0028] In the figure: 1, main body; 2, welding table; 3, clamping assembly; 31, placing disc; 311, gasket; 32, fixing frame; 33, mounting sleeve; 331, limiting block; 34, upper pressing plate; 341, limiting groove; 35, supporting spring; 36, rotating plate; 37, friction pad; 4, driving assembly; 41, driving motor; 42, connecting shaft; 43, belt pulley; 44, transmission belt; 5, feeding assembly; 51, mounting seat; 52, solder box; 521, feeding groove; 522, feeding slot; 523, spring groove; 524, notch; 53, feeding spring; 54, pushing plate; 541, marking block; 542, wedge-shaped protrusion; 55, connecting rod; 551, pulling block; 56, storage box; 561, discharging port; 57, shifting rod; 571, groove; 58, baffle; 6, welding assembly; 61, mounting frame; 62, electric lifting rod; 63, welding gun; 7, heating disc welding part; 8, solder rod. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0030] Embodiment one

[0031] Please refer to Figures 1-10The utility model provides a kind of brazing equipment and welding process for semiconductor heating disc, including main body 1 and welding table 2 installed on main body 1, clamping assembly 3, drive assembly 4, feeding assembly 5 and welding assembly 6 are provided on main body 1, clamping assembly 3 includes placing disc 31 and upper pressing plate 34, placing disc 31 is installed on welding table 2, upper pressing plate 34 is arranged above placing disc 31, placing disc 31 is used to hold heating disc weldment 7, upper pressing plate 34 can push heating disc weldment 7 from above heating disc weldment 7 to down, so that heating disc weldment 7 is tightly contacted on placing disc 31, drive assembly 4 is arranged in the bottom of welding table 2, and is cooperated with placing disc 31, drive assembly 4 can drive placing disc 31 to drive heating disc weldment 7 to rotate on welding table 2, feeding assembly 5 includes filler metal box 52, pusher plate 54 and push rod 57, filler metal box 52 is installed on welding table 2, several filler metal rods 8 are stored in filler metal box 52, and pusher plate 54 and push rod 57 are successively installed in filler metal box 52, pusher plate 54 can move linearly in filler metal box 52, when pusher plate 54 moves in the direction away from heating disc weldment 7, push rod 57 can be driven to send one filler metal rod 8 in filler metal box 52 to pusher plate 54, when pusher plate 54 moves in the direction of heating disc weldment 7, pusher plate 54 can push filler metal rod 8 to extend filler metal box 52 and contact in the welding place of heating disc weldment 7, welding assembly 6 includes welding gun 63, and welding gun 63 can melt filler on the welding place of heating disc weldment 7 and carry out welding.

[0032] Wherein, in use, first place the heating disc welding piece 7 to be welded into the placing disc 31, and apply pressure to the heating disc welding piece 7 from the upper direction to the lower direction through the upper pressing plate 34, so as to fix the heating disc welding piece 7 on the placing disc 31, then put a plurality of solder rods 8 required for brazing into the solder box 52, one of which will fall on the push rod 57, pull the push plate 54 to move in the solder box 52 away from the heating disc welding piece 7, when the push plate 54 moves to the maximum stroke, it will drive the push rod 57 to rotate towards the push plate 54, so that the push rod 57 sends the solder rod 8 on it to the push plate 54, then release the push plate 54, the released push plate 54 pushes the solder rod 8 on it to move towards the heating disc welding piece 7, so that the solder rod 8 is in contact with the welding position of the heating disc welding piece 7, at the same time the push rod 57 resets, the next solder rod 8 falls on the push rod 57, then the welding assembly 6 melts the solder rod 8 in contact with the welding position of the heating disc welding piece 7 through the welding head, starts to weld the heating disc welding piece 7, in the welding process, the driving assembly 4 drives the placing disc 31 to rotate, at the same time, as the solder rod 8 is consumed, the push plate 54 continuously pushes the solder rod 8 to move towards the heating disc welding piece 7, so that the solder rod 8 can always be in contact with the welding position, as the placing disc 31 drives the heating disc welding piece 7 to rotate, the solution of the solder rod 8 melted by the welding gun 63 is evenly distributed on the welding position of the heating disc welding piece 7, when the placing disc 31 drives the heating disc to rotate for one round, the welding of the heating disc welding piece 7 is completed, at this time the driving assembly 4 stops driving the placing disc 31 to rotate, and lifts the solder box 52 upwards, so that the solder rod 8 is no longer in contact with the heating disc welding piece 7, then closes the welding gun 63, then takes out the heating disc welding piece 7 completed welding from the placing disc 31, and places the next heating disc welding piece 7 to be welded on the placing disc 31, after the clamping assembly 3 fixes the heating disc welding piece 7, puts down the solder box 52, the push plate 54 pushes the remaining solder rod 8 to the welding position of the heating disc welding piece 7, then the welding gun 63 starts to weld, at the same time the driving assembly 4 drives the placing disc 31 to rotate with the heating disc welding piece 7, when the solder rod 8 on the push plate 54 is used up, pull the push plate 54 to the maximum stroke away from the heating disc welding piece 7, so that the push rod 57 sends the new solder rod 8 to the push plate 54, then release the push plate 54, so that the push plate 54 pushes the new solder rod 8 to the welding position of the heating disc welding piece 7, thereby quickly completing the feeding work of the solder rod 8, improving the welding efficiency of the heating disc welding piece 7.

[0033] The difference from the above embodiment is that the welding table 2 is fixedly installed on the main body 1, the placing disc 31 is rotatably installed on the upper side of the welding table 2, the inner wall of the placing disc 31 is fixedly connected with a rubber ring 311, the bottom of the heating disc welding piece 7 is placed in the rubber ring 311, and the rubber ring 311 can prevent the heating disc welding piece 7 from moving in the placing disc 31.

[0034] Wherein, by the setting of the gasket 311, when the heating disc weldment 7 is placed into the placing disc 31, the bottom of the heating disc weldment 7 is embedded into the gasket 311, and is embedded into the placing disc 31 under the extrusion of the gasket 311, so that the rotation is not easy to occur, and the placing disc 31 can drive the heating disc weldment 7 to rotate when the placing disc 31 rotates.

[0035] The difference from the above embodiment is that the clamping assembly 3 further comprises a fixing frame 32, the fixing frame 32 is fixedly installed on the welding table 2, a mounting sleeve 33 is fixedly connected above the fixing frame 32, the mounting sleeve 33 is located above the placing disc 31, and the opening of the mounting sleeve 33 corresponds to the placing disc 31, and a limiting block 331 is fixedly connected to the inner wall of the mounting sleeve 33.

[0036] The difference from the above embodiment is that a limiting groove 341 is formed in the side edge of the upper pressing plate 34, the upper pressing plate 34 is movably installed in the mounting sleeve 33, the limiting block 331 is slidably installed in the limiting groove 341, a supporting spring 35 is fixedly connected between the upper side of the upper pressing plate 34 and the top of the mounting sleeve 33, the supporting spring 35 pushes the upper pressing plate 34 to slide to the bottom of the mounting sleeve 33 at the beginning, a rotating plate 36 is rotatably connected to the bottom of the upper pressing plate 34, the rotating plate 36 extends out of the opening of the mounting sleeve 33 when the upper pressing plate 34 is located at the bottom of the mounting sleeve 33, and a friction pad 37 is fixedly connected to the bottom side of the rotating plate 36.

[0037] Wherein, when placing the heating disc weldment 7, first need to push the rotating plate 36 extending out of the mounting sleeve 33 back into the mounting sleeve 33, the rotating plate 36 pushed back into the mounting sleeve 33 drives the upper pressing plate 34 to move upwards in the mounting sleeve 33 under the cooperation of the limiting groove 341 and the limiting block 331, and compresses the supporting spring 35, after the heating disc weldment 7 is placed into the placing disc 31, the rotating block is loosened, the compressed supporting spring 35 restores deformation, thereby pushing the upper pressing plate 34 to move downwards, so that the rotating plate 36 under the upper pressing plate 34 is in contact with the top of the heating disc weldment 7, and the supporting spring 35 applies pressure to the heating disc weldment 7 through the upper pressing plate 34 to fix the heating disc weldment 7, during the welding process, when the driving assembly 4 drives the placing disc 31 to rotate with the heating disc weldment 7, the heating disc weldment 7 drives the rotating plate 36 in contact with the top of the heating disc weldment 7 to rotate in the same direction under the upper pressing plate 34, through the cooperation of the friction pad 37, not only increases the friction between the rotating plate 36 and the top of the heating disc weldment 7, makes the connection between the rotating plate 36 and the heating disc weldment 7 more firm, but also plays a buffering role, avoids wear and tear between the rotating plate 36 and the heating disc weldment 7 during the welding process, thereby damaging the heating disc weldment 7, after completing the welding, pulling out the welded heating disc weldment 7 upwards, after taking out the heating disc weldment 7, the compressed supporting spring 35 pushes the upper pressing plate 34 to the bottom of the mounting sleeve, so that the rotating plate 36 extends out of the mounting sleeve 33, and then repeats the above steps to place the next heating disc weldment 7 to be welded for welding.

[0038] The difference from the above embodiment is that the driving assembly 4 includes a driving motor 41 and a connecting shaft 42, the driving motor 41 is fixedly connected to the welding table 2, the connecting shaft 42 is coaxially fixedly connected to the bottom of the placing disc 31 at the upper end, and the lower end of the connecting shaft 42 is rotatably connected to the bottom of the welding table 2, and a belt pulley 43 is coaxially fixedly connected to the output shaft of the driving motor 41 and the connecting shaft 42.

[0039] Wherein, when the placing disc 31 needs to be rotated, the driving motor 41 is started, the driving motor 41 drives the belt pulley 43 on the output shaft to rotate, the transmission belt 44 connected between the two belt pulleys 43 drives the belt pulley 43 on the connecting shaft 42 to rotate, thereby driving the connecting shaft 42 to rotate with the placing disc 31 on the welding table 2.

[0040] The difference from the above-mentioned embodiment is that the feeding assembly 5 further comprises a mounting seat 51 fixedly connected to the side of the welding table 2, and a filler metal box 52 rotatably mounted on the mounting seat 51, wherein the filler metal box 52 is provided with a feeding groove 521 and a feeding groove 522 respectively, the upper side of the feeding groove 522 is communicated with the upper side of the feeding groove 521, the feeding groove 521 is matched with the filler metal rod 8, a spring groove 523 is formed below the feeding groove 521, the top of the spring groove 523 is communicated with the bottom of the feeding groove 521, the upper side of the spring groove 523 is communicated with the lower side of the feeding groove 522, a feeding spring 53 is arranged in the spring groove 523, one end of the feeding spring 53 is fixedly connected with the inner wall of the spring groove 523, and a notch 524 is formed above the feeding groove 521, the notch 524 penetrates through the top of the filler metal box 52 and is communicated with the top of the feeding groove 521.

[0041] The difference from the above-mentioned embodiment is that the feeding assembly 5 further comprises a mounting seat 51 fixedly connected to the side of the welding table 2, and a filler metal box 52 rotatably mounted on the mounting seat 51, wherein the filler metal box 52 is provided with a feeding groove 521 and a feeding groove 522 respectively, the upper side of the feeding groove 522 is communicated with the upper side of the feeding groove 521, the feeding groove 521 is matched with the filler metal rod 8, a spring groove 523 is formed below the feeding groove 521, the top of the spring groove 523 is communicated with the bottom of the feeding groove 521, the upper side of the spring groove 523 is communicated with the lower side of the feeding groove 522, a feeding spring 53 is arranged in the spring groove 523, one end of the feeding spring 53 is fixedly connected with the inner wall of the spring groove 523, and a notch 524 is formed above the feeding groove 521, the notch 524 penetrates through the top of the filler metal box 52 and is communicated with the top of the feeding groove 521.

[0042] The difference from the above-mentioned embodiment is that the feeding assembly 5 further comprises a mounting seat 51 fixedly connected to the side of the welding table 2, and a filler metal box 52 rotatably mounted on the mounting seat 51, wherein the filler metal box 52 is provided with a feeding groove 521 and a feeding groove 522 respectively, the upper side of the feeding groove 522 is communicated with the upper side of the feeding groove 521, the feeding groove 521 is matched with the filler metal rod 8, a spring groove 523 is formed below the feeding groove 521, the top of the spring groove 523 is communicated with the bottom of the feeding groove 521, the upper side of the spring groove 523 is communicated with the lower side of the feeding groove 522, a feeding spring 53 is arranged in the spring groove 523, one end of the feeding spring 53 is fixedly connected with the inner wall of the spring groove 523, and a notch 524 is formed above the feeding groove 521, the notch 524 penetrates through the top of the filler metal box 52 and is communicated with the top of the feeding groove 521.

[0043] Wherein, before starting welding, first pull the connecting rod 55 by the pull block 551, drive the pushing plate 54 to move in the tin box 52 to the direction away from the heating disc welding part 7, the pushing plate 54 in movement will drive the mark block 541 and the wedge-shaped convex block 542 on both ends to move synchronously, and compress the feeding spring, when the pushing plate 54 moves to the maximum stroke, the tin rod 8 on the push rod 57 is sent into the feeding groove 521, then release the pull block 551, the compressed feeding spring 53 restores deformation, thus drives the pushing plate 54 to push the tin rod 8 in the feeding groove 521 to move to the welding part of the heating disc welding part 7, so that the tin rod 8 is in contact with the welding part of the heating disc welding part 7, in the welding process, with the consumption of the tin rod 8, the feeding spring 53 will continuously drive the pushing plate 54 to push the tin rod 8 to move to the heating disc welding part 7, keep the tin rod 8 in contact with the heating disc welding part 7, when the tin rod 8 is used up, pull the pushing plate 54 to the direction away from the heating disc welding part 7 to the maximum stroke by the pull block 551 again, so that the push rod 57 fills the new tin rod 8 into the feeding groove 521, then release the pull block 551, so that the feeding spring 53 drives the pushing plate 54 to push the new tin rod 8 to contact the welding part of the heating disc welding part 7, wherein, with the consumption of the tin rod 8, the pushing plate 54 drives the mark block 541 to move gradually to the direction of the tin box 52 close to the heating disc welding part 7 under the pushing of the feeding spring 53, when the mark block 541 no longer moves, the operator can judge that the tin rod 8 has been used up and needs to be replaced with a new tin rod 8.

[0044] The difference from the above embodiment is that the top of the tin box 52 is fixedly connected with a storage tank 56, the storage tank 56 is used for storing the tin rod 8, the bottom of the side close to the feeding groove 521 of the storage tank 56 is provided with a discharge port 561, the discharge port 561 is communicated with the feeding groove 522, and the discharge port 561 only contains one tin rod 8 each time, the bottom of the storage tank 56 is a slope inclined to the direction of the discharge port 561, the push rod 57 is rotatably installed on the inner wall of the side close to the feeding groove 521 of the feeding groove 522, the push rod 57 is provided with a groove 571, the groove 571 corresponds below the discharge port 561, and the end away from the mark block 541 of the push rod 57 is fixedly connected with a baffle 58.

[0045] Wherein, before welding, the storage box 56 needs to be opened, and several solder rods 8 are put into the storage box 56, and then the storage box 56 is closed. The several solder rods 8 falling into the storage box 56 will roll along the slope at the bottom of the storage box 56 to the direction of the discharge port 561. One of the solder rods 8 will fall into the groove 571 of the push rod 57 through the discharge port 561 and block the discharge port 561, so that there is only one solder rod 8 in the feeding groove 522. When the pushing plate 54 moves to the maximum stroke away from the heating disc welding piece 7, the wedge-shaped protrusion 542 at the lower end of the pushing plate 54 gradually pushes the baffle 58 on the push rod 57 to move away from the feeding groove 521 through the inclined surface, so that the push rod 57 moves to the feeding groove 521. With the rotation of the push rod 57, the groove 571 on the push rod 57 will tilt to the feeding groove 521, and the solder rod 8 in the groove 571 will be sent into the feeding groove 521. At the same time, the raised push rod 57 will block the feeding port, preventing the solder rods 8 in the storage box 56 from falling into the feeding groove 522. When the pushing plate 54 pushes the solder rod 8 to move under the drive of the feeding spring 53, the wedge-shaped protrusion 542 is separated from the baffle 58. After the wedge-shaped protrusion 542 is removed, the push rod 57 is reset under the action of its own gravity, the discharge port 561 is opened, and the next solder rod 8 falls into the groove 571 through the discharge port 561. When the previous solder rod is used up, it is replaced.

[0046] Embodiment two

[0047] The difference from the above-mentioned embodiments is that the welding assembly 6 further comprises a mounting bracket 61 fixedly connected to the main body 1 and located at the side of the welding table 2. The electric lifting rod 62 is fixedly installed at the upper end of the mounting bracket 61, and the welding gun 63 is matched with the output shaft of the electric lifting rod 62.

[0048] Wherein, before welding, the electric lifting rod 62 retracts its output shaft, so that the welding gun 63 is located above the mounting sleeve 33. When starting welding, the electric lifting rod 62 extends its output shaft, so that the welding gun 63 moves downward to the welding position of the heating disc welding piece 7. Then the welding gun 63 is started to melt the solder and weld the heating disc welding piece 7. After completing the welding work of this batch, the welding gun 63 is turned off, and the electric lifting rod 62 retracts the output shaft again to lift the welding gun 63.

[0049] The difference from the above-mentioned embodiments is that a soldering device is used in a welding process for a semiconductor heating disc.

[0050] Working principle: in use, first of all, the heating disc welding parts 7 to be welded are placed in the placing disc 31, when the heating disc welding parts 7 are placed in the placing disc 31, the bottom of the heating disc welding parts 7 is embedded in the gasket 311, and is embedded in the placing disc 31 under the extrusion of the gasket 311, so that rotation is not easy to occur, so that the placing disc 31 can drive the heating disc welding parts 7 to rotate when rotating, and the supporting spring 35 pushes the upper pressing plate 34 to move downward, the upper pressing plate 34 abuts against the top of the heating disc welding parts 7 through the rotating plate 36, so that the supporting spring 35 exerts pressure on the heating disc welding parts 7 through the upper pressing plate 34, and exerts pressure on the heating disc welding parts 7 from the top to the bottom, so that the heating disc welding parts 7 are fixed on the placing disc 31, before welding, it is necessary to open the storage box 56, and a plurality of solder rods 8 are put into the storage box 56, and then the storage box 56 is closed, and the plurality of solder rods 8 falling in the storage box 56 will roll along the slope at the bottom of the storage box 56 to the discharge port 561 direction, one of the solder rods 8 will fall into the groove 571 of the push rod 57 through the discharge port 561, and will block the discharge port 561, so that there is only one solder rod 8 in the feeding groove 522, the connecting rod 55 is pulled by the pull block 551, and the pushing plate 54 is driven to move in the solder box 52 away from the heating disc welding parts 7, and the pushing plate 54 moves synchronously with the mark block 541 and the wedge-shaped protrusion 542 at both ends, and the upper and lower ends are compressed, and the pushing plate 54 is moved to the maximum stroke, the wedge-shaped protrusion 542 gradually pushes the baffle 58 on the push rod 57 away from the feeding groove 521 through the slope, so that the push rod 57 moves to the feeding groove 521, with the rotation of the push rod 57, the groove 571 on the push rod 57 will tilt to the feeding groove 521, and the solder rod 8 in the groove 571 will be sent into the feeding groove 521, and the push rod 57 will block the feeding port, preventing the solder rod 8 in the storage box 56 from falling into the feeding groove 522, and then the pull block 551 is released, and the feeding spring 53 is restored to deformation, so as to drive the pushing plate 54 to move the solder rod 8 in the feeding groove 521 to the welding position of the heating disc welding parts 7, so that the solder rod 8 abuts against the welding position of the heating disc welding parts 7;

[0051] In the welding process, as the filler rod 8 is consumed, the feeding spring 53 will constantly drive the push plate 54 to push the filler rod 8 to move towards the heating disc welding piece 7, keeping the contact between the filler rod 8 and the heating disc welding piece 7, when the filler rod 8 is used up, the pull block 551 pulls the push plate 54 again to move away from the heating disc welding piece 7 to the maximum stroke, so that the push rod 57 loads the new filler rod 8 into the feeding groove 521, and then releases the pull block 551, so that the feeding spring 53 drives the push plate 54 to push the new filler rod 8 to contact the welding position of the heating disc welding piece 7, wherein, as the filler rod 8 is consumed, the push plate 54 drives the marker block 541 to gradually move towards the heating disc welding piece 7, when the marker block 541 no longer moves, the operator can judge that the filler rod 8 has been used up and needs to be replaced, when the placing disc 31 drives the heating disc to rotate one turn, the welding of the heating disc welding piece 7 is completed, at this time the driving assembly 4 stops driving the placing disc 31 to rotate, and the filler rod box 52 is lifted upwards, so that the filler rod 8 no longer contacts the heating disc welding piece 7, then the welding gun 63 is turned off, then the heating disc welding piece 7 that has completed welding is taken out from the placing disc 31, and the next heating disc welding piece 7 to be welded is placed on the placing disc 31, after the clamping assembly 3 fixes the heating disc welding piece 7, the filler rod box 52 is lowered, the push plate 54 pushes the remaining filler rod 8 to contact the welding position of the heating disc welding piece 7, then the welding gun 63 starts to weld, and the driving assembly 4 drives the placing disc 31 to rotate with the heating disc welding piece 7, so the above steps are repeated until the heating disc welding pieces 7 of the batch are completely welded.

[0052] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application being defined by the appended claims and their equivalents.

Claims

1. A brazing apparatus comprising a main body and a welding station mounted on the main body, characterized in that: The main body is provided with a clamping assembly, a driving assembly, a feeding assembly and a welding assembly. The clamping assembly comprises a placing disc and an upper pressing plate. The placing disc is installed on the welding table, and the upper pressing plate is arranged above the placing disc. The placing disc is used for containing the heating disc welding piece. The upper pressing plate can push the heating disc welding piece downward from above to tightly abut against the placing disc. The driving assembly is arranged at the bottom of the welding table and cooperates with the placing disc. The driving assembly can drive the placing disc to rotate with the heating disc welding piece on the welding table. The feeding assembly comprises a filler metal box, a pushing plate and a pushing rod. The filler metal box is installed on the welding table. A plurality of filler metal rods are stored in the filler metal box. The pushing plate and the pushing rod are sequentially installed in the filler metal box. The pushing plate can move linearly in the filler metal box. When the pushing plate moves away from the heating disc welding piece, the pushing rod can send one of the filler metal rods in the filler metal box to the pushing plate. When the pushing plate moves toward the heating disc welding piece, the pushing plate can push the filler metal rod to extend out of the filler metal box and abut against the welding position of the heating disc welding piece. The welding assembly comprises a welding gun. The welding gun can melt the filler metal on the welding position of the heating disc welding piece to perform welding.

2. A brazing apparatus as defined in claim 1, wherein: The welding table is fixedly installed on the main body. The placing disc is rotatably installed on the upper side of the welding table. A rubber gasket is fixedly connected to the inner wall of the placing disc. The bottom of the heating disc welding piece is placed in the gasket. The gasket can prevent the heating disc welding piece from moving in the placing disc.

3. A brazing apparatus as defined in claim 2, wherein: The clamping assembly further comprises a fixing frame. The fixing frame is fixedly installed on the welding table. An installation sleeve is fixedly connected above the fixing frame. The installation sleeve is located above the placing disc. The opening of the installation sleeve corresponds to the placing disc. A limiting block is fixedly connected to the inner wall of the installation sleeve.

4. A brazing apparatus as defined in claim 3, wherein: A limiting groove is formed in the side edge of the upper pressing plate. The upper pressing plate is movably installed in the installation sleeve. The limiting block is slidably installed in the limiting groove. A supporting spring is fixedly connected between the upper side of the upper pressing plate and the top of the installation sleeve. Initially, the supporting spring pushes the upper pressing plate to slide to the bottom of the installation sleeve. A rotating plate is rotatably connected to the bottom of the upper pressing plate. When the upper pressing plate is located at the bottom of the installation sleeve, the rotating plate extends out of the opening of the installation sleeve. A friction pad is fixedly connected to the bottom side of the rotating plate.

5. A brazing apparatus as defined in claim 4, wherein: The driving assembly comprises a driving motor and a connecting shaft. The driving motor is fixedly connected to the welding table. The upper end of the connecting shaft is fixedly connected coaxially with the bottom of the placing disc. The lower end of the connecting shaft is rotatably connected to the bottom of the welding table. A belt pulley is coaxially fixedly connected to the output shaft of the driving motor and the connecting shaft. The two belt pulleys are connected by a transmission belt.

6. A brazing apparatus as defined in claim 5, wherein: The feeding assembly further comprises a mounting seat fixedly connected to the side of the welding table, the filler metal box is rotatably mounted on the mounting seat, an upper feeding groove and a feeding groove are respectively formed in the filler metal box, the upper side of the feeding groove is communicated with the upper side of the upper feeding groove, the upper feeding groove is matched with the filler metal rod, a spring groove is formed below the upper feeding groove, the top of the spring groove is communicated with the bottom of the upper feeding groove, the upper side of the spring groove is communicated with the lower side of the feeding groove, a feeding spring is arranged in the spring groove, one end of the feeding spring is fixedly connected to the inner wall of the spring groove, and a notch is formed above the upper feeding groove, the notch penetrates through the top of the filler metal box and is communicated with the top of the upper feeding groove.

7. A brazing apparatus as defined in claim 6, wherein: The pushing plate is slidably mounted in the upper feeding groove, the upper side of the pushing plate is fixedly connected with a marker block, the marker block extends to the top of the filler metal box through the notch, a connecting rod is fixed to the side of the pushing plate away from the placing disc, the connecting rod is located in the upper feeding groove, a pull block is fixedly connected to the end of the connecting rod away from the pushing plate, the pull block extends to the upper end of the filler metal box from the notch, the lower end of the pushing plate extends into the spring groove, and the lower end of the pushing plate is fixedly connected to the other end of the feeding spring, a wedge-shaped protrusion is fixedly connected to the side of the lower end of the pushing plate facing the feeding groove, and the wedge-shaped protrusion is located at the bottom of the feeding groove.

8. A brazing apparatus as defined in claim 7, wherein: The top of the filler metal box is fixedly connected with a storage box, the storage box is used for storing the filler metal rod, a discharging port is formed in the bottom of the side of the storage box close to the upper feeding groove, the discharging port is communicated with the feeding groove, only one filler metal rod can pass through the discharging port at a time, the bottom of the storage box is an inclined slope inclined to the discharging port, a push rod is rotatably mounted on the inner wall of the side of the feeding groove close to the upper feeding groove, a groove is formed in the push rod, the groove is located below the discharging port, and a baffle is fixedly connected to the end of the push rod away from the marker block.

9. The brazing apparatus of claim 1, wherein: The welding assembly further comprises a mounting frame fixedly connected to the main body and located at the side of the welding table, an electric lifting rod is fixedly mounted on the upper end of the mounting frame, and the welding gun is fitted on the output shaft of the electric lifting rod.

10. A welding process for a semiconductor heating disc, characterized by: The welding equipment is used.

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