A positioning welding device and a welding method for processing a semiconductor heating plate

Abstract

The present invention relates to the technical field of heating plate welding, and discloses a positioning welding device and a welding method for semiconductor heating plate processing. Through the setting of a loading mechanism, after the heating plate and the electrode rod are placed in a carrier, the main clamping plate and the auxiliary clamping plate of the clamping assembly are driven to move toward each other by rotating the hand wheel of the driving assembly to clamp the electrode rod. At the same time, the driving assembly also synchronously drives the positioning assembly, so that the pull rod of the positioning assembly pulls the positioning rod to the top of the heating plate, and the positioning rod abuts against the two sides of the heating plate through the positioning protrusion, and fixes the heating plate in the placement groove, thereby completing the clamping and positioning of the heating plate and the electrode rod, facilitating the subsequent welding. After the welding is completed, the clamping assembly and the positioning assembly are driven by the hand wheel to end the clamping and fixing of the electrode rod and the heating plate, so that the welded heating plate can be taken out from the carrier, and the next batch of production can be quickly carried out, thereby saving a lot of time and reducing the labor intensity of workers.

Description

Technical Field

[0001] The invention relates to the technical field of heating plate welding, in particular to a positioning welding device and a welding method for processing a semiconductor heating plate. Background Art

[0002] The heating plate is a device widely used in the preparation and processing of semiconductor materials. In the process of producing the heating plate, the electrode rod needs to be welded to the heating plate;

[0003] Chinese patent CN219684483U discloses a positioning fixture for brazing electrode rods of semiconductor ceramic heaters, which positions the electrode rod by fixing a positioning block on a cavity tube through a positioning pin, and applies downward pressure to the electrode rod by sleeve-mounting a counterweight cap on the electrode rod, so that the electrode rod contacts the welding pin. However, in mass production, before welding, it is necessary to install positioning blocks on each heating plate to be welded, and sleeve a counterweight cap on the electrode rod to position the electrode rod and the heating plate. After welding, it is necessary to disassemble them one by one, which is very time-consuming and increases the labor intensity of workers. Moreover, since there is a clearance fit between the electrode rod and the positioning hole on the positioning block, when the motor tube is skewed in the positioning hole, the counterweight cap sleeved on the upper end of the electrode rod causes the center of gravity of the upper end of the electrode rod to be further offset, thereby aggravating the skewness of the electrode rod, causing the electrode rod to be stuck in the positioning hole and unable to move, so that after the brazing material is melted, there is a gap between the electrode rod and the welding pin, resulting in poor welding effect. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a positioning welding device and a welding method for processing a semiconductor heating disk to overcome the above-mentioned technical problems existing in the prior art.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a positioning welding device and a welding method for processing a semiconductor heating disk, comprising a brazing furnace, wherein a loading mechanism is arranged in the brazing furnace, wherein the loading mechanism comprises a carrier, a driving assembly, a clamping assembly and a positioning assembly, wherein a plurality of the carriers are stacked into a pile and placed in the brazing furnace, wherein a plurality of evenly arranged placement grooves are provided at the bottom of the carrier, wherein a heating disk is placed in the placement groove, wherein a welding groove is provided on the heating disk, wherein an electrode rod is inserted in the welding groove, wherein a driving assembly is installed on each of the carriers, wherein the clamping assembly comprises a main clamping plate, an auxiliary clamping plate and a clamping block, wherein the main The clamping plate and the auxiliary clamping plate are both matched on the driving assembly, and the clamping blocks are respectively installed on the main clamping plate and the auxiliary clamping plate. The driving assembly drives the main clamping plate and the auxiliary clamping plate to move toward each other to clamp and fix the electrode rod, and the clamping block applies a downward thrust to the clamped electrode rod. The positioning assembly includes a pull rod and a positioning rod, and the pull rod is installed at the bottom of the carrier and cooperates with the driving assembly. A plurality of positioning rods are connected to the pull rod, and the positioning rod corresponds to the placement slot. The driving assembly drives the pull rod while driving the clamping assembly, and the pull rod fixes the heating plate through the positioning rod.

[0006] Preferably, the main clamping plate and the auxiliary clamping plate are each provided with half a clamping groove, the clamping grooves on the two correspond to each other, and the clamping grooves on the main clamping plate and the auxiliary clamping plate are both provided with grooves, one side of the groove is fixedly connected to a fixed shaft, and the other side of the groove is fixedly connected to a wedge block, the inclined surface of the wedge block faces the groove, and one side of the main clamping plate and the auxiliary clamping plate are both welded with a driving block.

[0007] Preferably, one end of the clamping block is rotatably mounted on the fixed shaft, a clamping spring is fixedly connected between the lower side of the clamping block and the bottom of the groove, the clamping spring is sleeved on the fixed shaft, a top block is fixedly connected to the lower side of the other end of the clamping block, the top block has an arc-shaped surface corresponding to the inclined surface of the wedge block, and a friction pattern is provided on the outward side of the clamping block.

[0008] Preferably, the clamping assembly also includes a sliding block, which is slidably installed in the groove and located in the middle of the groove. A support spring is fixedly connected between one side of the sliding block and the inner wall of the groove, and the support spring pushes the sliding block to contact the clamping block.

[0009] Preferably, a bearing seat is fixedly installed on both sides of the carrier, and a guide rod is provided on the carrier, and both ends of the guide rod are fixedly connected to the inner walls on both sides of the carrier, and the guide rod is located directly above the bearing seat. A sliding groove is provided at the bottom of the carrier, and the sliding groove is located on one side of the placement groove. A mounting seat is fixedly connected to one side of the carrier, and the mounting seat is located between the bearing seat and the sliding groove.

[0010] Preferably, the driving assembly includes a driving rod, both ends of the driving rod are rotatably mounted on the bearing seat, and one end of the driving rod extends out from the bearing seat, a section of the driving rod is a worm, and the worm is located in the carrier, and a handwheel is coaxially fixedly connected to the extended end of the driving rod, and the handwheel is located on one side of the worm, and the driving rod is also provided with a plurality of evenly distributed bidirectional threaded sections at intervals, which are located on the other side of the worm, and each bidirectional threaded section of the driving rod corresponds to one of the placement grooves, and the driving blocks on the main clamping plate and the auxiliary clamping plate are assembled on the two ends of the bidirectional threaded section of the driving rod through threads.

[0011] Preferably, the drive assembly also includes a transmission rod, which is rotatably mounted on the mounting seat, the upper end of the transmission rod is coaxially fixedly connected with a turbine, the turbine is engaged with one side of the worm, and the lower end of the transmission rod is coaxially fixedly connected with a driving gear, and the driving gear is located in the sliding groove.

[0012] Preferably, the pull rod is slidably installed in the sliding groove, one end of the pull rod is fixedly connected to a driving rack, the driving gear is meshed with the driving gear, a plurality of the positioning rods are evenly arranged on the pull rod, and one end of each of the positioning rods is fixedly connected to the pull rod, the other end of the positioning rod extends to the other side of the carrier, and two convex strips are symmetrically fixedly connected to the extended end of the positioning rod, the two convex strips correspond to the two sides of the heating plate respectively, a positioning groove is provided on the convex strip, a positioning protrusion is slidably installed in the positioning groove, a positioning spring is fixedly connected between the upper end of the positioning protrusion and the top of the positioning groove, and the positioning spring pushes the positioning protrusion to contact the heating plate.

[0013] Preferably, a connecting piece is fixedly connected to each of the four corners of the bottom of the carrier, and the four connecting pieces are symmetrical to each other. A connecting groove is respectively opened on the four corners of the top of the carrier, and each connecting groove corresponds to a connecting piece at the bottom of the carrier. The connecting pieces are also fixedly connected to the four corners of one side of the carrier, and the connecting groove is also opened correspondingly on the other side of the carrier. A plurality of carriers are stacked by cooperating with the connecting pieces and the connecting grooves thereon.

[0014] Preferably, a welding method for semiconductor heater plate processing uses a tack welding device.

[0015] Compared with the prior art, the present invention provides a positioning welding device and a welding method for semiconductor heating plate processing, which have the following beneficial effects:

[0016] 1. The positioning welding device and the welding method for processing semiconductor heating disks, through the setting of the loading mechanism, after the heating disk and the electrode rod are placed in the carrier, the main clamping plate and the auxiliary clamping plate of the clamping assembly are driven by the hand wheel of the rotating driving assembly to clamp the electrode rod. At the same time, the driving assembly also synchronously drives the positioning assembly, so that the pull rod of the positioning assembly pulls the positioning rod to the top of the heating disk, and the positioning rod abuts against the two sides of the heating disk through the positioning protrusions, and fixes the heating disk in the placement groove, thereby completing the clamping and positioning of the heating disk and the electrode rod, facilitating the subsequent welding, and after the welding is completed, the clamping assembly and the positioning assembly are driven by the hand wheel to end the clamping and fixing of the electrode rod and the heating disk, so that the welded heating disk can be taken out from the carrier, and the next batch of production can be quickly carried out, thereby saving a lot of time and reducing the labor intensity of workers.

[0017] 2. The positioning welding device and the welding method for processing semiconductor heating plates, through the setting of clamping blocks, when the clamping plate and the auxiliary clamping plate clamp the electrode rod, the clamping blocks in the clamping grooves of the two are pushed by their respective sliding blocks to clamp on both sides of the electrode rod respectively, so that the electrode rod can be kept vertical in the clamping groove, and under the action of the clamping spring, a downward thrust is applied to the electrode rod, ensuring that the electrode rod can always be in contact with the welding groove, thereby ensuring the welding effect of the heating plate, and making the welding quality of the heating plate better. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the cross-sectional structure of the upper part of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the left part of the present invention;

[0020] Figure 3 It is a schematic diagram of the exploded cross-sectional structure of some components on the right side of the present invention;

[0021] Figure 4 for Figure 3 A local enlarged structural schematic diagram;

[0022] Figure 5 It is a schematic diagram of the right side structure of the clamping assembly of the present invention;

[0023] Figure 6 It is a schematic diagram of the exploded cross-sectional structure of the left part of the components of the present invention;

[0024] Figure 7 It is a schematic diagram of the left side structure of the clamping assembly of the present invention;

[0025] Figure 8 It is a front structural schematic diagram of the present invention;

[0026] Fig. 9 It is a schematic cross-sectional structural diagram of the left side parts of the present invention;

[0027] Fig.10 It is a schematic diagram of a top view and a cross-sectional structure of some components of the loading mechanism of the present invention.

[0028] In the figure: 1, brazing furnace; 2, loading mechanism; 21, loading rack; 211, bearing seat; 212, placement slot; 213, guide rod; 214, sliding slot; 215, mounting seat; 22, connecting piece; 23, connecting slot; 3, driving assembly; 31, driving rod; 32, worm; 33, hand wheel; 34, transmission rod; 35, turbine; 36, driving gear; 4, clamping assembly; 41, main clamping plate; 42, auxiliary clamping plate; 43 , clamping groove; 431, groove; 432, fixed shaft; 433, wedge block; 44, driving block; 5, clamping block; 51, clamping spring; 52, top block; 6, sliding block; 61, supporting spring; 7, positioning assembly; 71, pull rod; 711, driving rack; 72, positioning rod; 721, convex strip; 722, positioning groove; 73, positioning convex block; 74, positioning spring; 8, heating plate; 81, welding groove; 82, electrode rod. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 10A positioning welding device includes a brazing furnace 1, a loading mechanism 2 is arranged in the brazing furnace 1, the loading mechanism 2 includes a carrier 21, a driving assembly 3, a clamping assembly 4 and a positioning assembly 7, a plurality of carriers 21 are stacked into a pile and placed in the brazing furnace 1, a plurality of evenly arranged placement grooves 212 are opened at the bottom of the carrier 21, a heating plate 8 is placed in the placement groove 212, a welding groove 81 is opened on the heating plate 8, an electrode rod 82 is inserted in the welding groove 81, each carrier 21 is installed with a driving assembly 3, the clamping assembly 4 includes a main clamping plate 41, a sub-clamping plate 42 and a clamping block 5, the main clamping plate 41 and the sub-clamping plate 42 They are all matched on the driving component 3, and the clamping blocks 5 are respectively installed on the main clamping plate 41 and the auxiliary clamping plate 42. The driving component 3 drives the main clamping plate 41 and the auxiliary clamping plate 42 to move toward each other to clamp and fix the electrode rod 82. The clamping block 5 applies a downward thrust to the clamped electrode rod 82. The positioning component 7 includes a pull rod 71 and a positioning rod 72. The pull rod 71 is installed at the bottom of the carrier 21 and cooperates with the driving component 3. A plurality of positioning rods 72 are connected to the pull rod 71. The positioning rod 72 corresponds to the placement groove 212. The driving component 3 drives the pull rod 71 while driving the clamping component 4, and the pull rod 71 fixes the heating plate 8 through the positioning rod 72.

[0031] When in use, firstly, a plurality of heating plates 8 are sequentially placed in the placement slots 212 of a plurality of carriers 21, and the heating plates 8 are aligned so that the welding slots 81 on the heating plates 8 correspond to between the main clamping plate 41 and the auxiliary clamping plate 42. At this time, the main clamping plate 41 and the auxiliary clamping plate 42 are in an open state, and the positioning rod 72 is away from the placement slot 212. Then, one end of the electrode rod 82 is inserted into the welding slot 81 and the solder is placed. After a heating plate 8 is placed in the placement slot 212 of each carrier 21 and inserted, After the electrode rod 82 is moved, the driving assembly 3 drives the main clamping plate 41 and the auxiliary clamping plate 42 to move synchronously toward each other, so as to align and clamp the electrode rod 82 to prevent the electrode rod 82 from deviating in the following process. At the same time, the driving assembly 3 also drives the pull rod 71 to move, and the pull rod 71 drives the positioning rod 72 to approach the heating plate 8. When the electrode rod 82 is clamped by the clamping assembly 4, the positioning rod 72 moves to the top of the heating plate 8 to fix the heating plate 8 in the placement groove 212, so as to prevent the heating plate 8 from deviating in the following process. After the clamping assembly 4 and the positioning assembly 7 position the electrode rod 82 and the heating plate 8, the driving assembly 3 stops working, and then a plurality of carriers 21 are stacked into a pile and placed in the brazing furnace 1 for welding. During the welding process, the brazing furnace 1 heats up to melt the brazing material so that it is fully filled between the welding groove 81 and the electrode rod 82. The clamping block 5 pushes the electrode rod 82 downward so that the electrode rod 82 keeps contact with the bottom of the welding groove 81 in the molten brazing material. Then the brazing furnace 1 stops heating and waits for the brazing furnace 1 to heat up. After cooling to room temperature, the stack loading mechanism 2 is taken out, and the multiple load racks 21 stacked in a stack are disassembled. When the welding-completed heating disk 8 is taken out, the main clamping plate 41 and the auxiliary clamping plate 42 in the clamping state are driven to separate through the driving component 3, thereby completing the clamping and fixation of the electrode rod 82. At the same time, the pull rod 71 drives the positioning rod 72 to disengage from the heating disk 8, thereby completing the fixation of the heating disk 8. After the welding-completed heating disk 8 is taken out from the placement slot 212, the above steps are repeated to weld the next batch of heating disks 8.

[0032] The difference from the above embodiment lies in that half a clamping groove 43 is provided on the main clamping plate 41 and the auxiliary clamping plate 42, the clamping grooves 43 on both correspond to each other, and a groove 431 is provided in the clamping grooves 43 on the main clamping plate 41 and the auxiliary clamping plate 42, one side of the groove 431 is fixedly connected with a fixed shaft 432, and the other side of the groove 431 is fixedly connected with a wedge block 433, the inclined surface of the wedge block 433 faces the groove 431, and a driving block 44 is welded to one side of the main clamping plate 41 and the auxiliary clamping plate 42.

[0033] Among them, when clamping the motor tube, each driving block 44 drives the main clamping plate 41 and the auxiliary clamping plate 42 thereon to move synchronously toward the electrode rod 82 under the drive of the driving component 3. Finally, the main clamping plate 41 and the auxiliary clamping plate 42 are clamped on both sides of the electrode rod 82 through the clamping grooves 43 thereon to clamp the electrode rod 82. The clamped electrode rod 82 is clearance-matched with the clamping grooves 43 and can only move in the vertical direction. When the clamping of the electrode rod 82 is finished, the driving component 3 drives the main clamping plate 41 and the auxiliary clamping plate 42 clamped on the electrode rod 82 to move to both sides of the electrode rod 82 through the driving block 44 and separate from the electrode rod 82.

[0034] The difference from the above embodiment is that one end of the clamping block 5 is rotatably mounted on the fixed shaft 432, a clamping spring 51 is fixedly connected between the lower side of the clamping block 5 and the bottom of the groove 431, the clamping spring 51 is sleeved on the fixed shaft 432, and a top block 52 is fixedly connected to the lower side of the other end of the clamping block 5, the top block 52 has an arc-shaped surface corresponding to the inclined surface of the wedge block 433, and a friction pattern is provided on the outward side of the clamping block 5.

[0035] When the clamping assembly 4 does not clamp the electrode rod 82, the clamping block 5 is located in the clamping groove 43, and the top block 52 under the clamping block 5 abuts against the top of the wedge block 433. At this time, the clamping block 5 is located at the top of the groove 431 and the clamping spring 51 is stretched. When the clamping assembly 4 clamps the electrode rod 82, the main clamping plate 41 and the auxiliary clamping plate 42 move toward the electrode rod 82, and the electrode rod 82 pushes the clamping block 5 located in the clamping groove 43 into the groove 431. The top block 52 under the clamping block 5 slides down along the inclined surface of the wedge block 433. The clamping blocks 5 on the main clamping plate 41 and the auxiliary clamping plate 42 tightly abut against both sides of the electrode rod 82, so that the electrode rod 82 can remain vertical in the clamping groove 43, and the stretched clamping spring 51 A downward thrust is applied to the clamped electrode rod 82 through the clamping block 5, so that the lower end of the electrode rod 82 is pressed against the welding groove 81. During the welding process, as the solder melts, a gap will be generated between the contact surfaces of the electrode rod 82 and the welding groove 81. At this time, the clamping spring 51 contracts downward, pushing the electrode rod 82 downward to continue to be in close contact with the welding groove 81, thereby improving the welding quality. When the clamping assembly 4 finishes clamping the electrode rod 82, the clamping block 5 squeezed into the groove 431 by the electrode rod 82 returns to the position before the electrode rod 82 is not clamped, and the top block 52 slides along the inclined surface of the wedge block 433 to the top of the wedge block 433, thereby lifting the clamping block 5 to the top of the groove 431 and stretching the clamping spring 51 again.

[0036] The difference from the above embodiment is that the clamping assembly 4 also includes a sliding block 6, which is slidably installed in the groove 431 and is located in the middle of the groove 431. A support spring 61 is fixedly connected between one side of the sliding block 6 and the inner wall of the groove 431, and the support spring 61 pushes the sliding block 6 to contact the clamping block 5.

[0037] Among them, when the clamping assembly 4 does not clamp the electrode rod 82, the support spring 61 pushes the clamping block 5 out of the groove 431 through the sliding block 6, so that the side of the clamping block 5 with the friction pattern is located in the clamping groove 43, and the top block 52 on the lower side of the clamping block 5 is located on the top of the wedge block 433. When clamping the electrode rod 82, the clamping block 5 enters the groove 431 under the push of the electrode rod 82, and pushes the sliding block 6 to compress the support spring 61. After the clamping assembly 4 finishes clamping the electrode rod 82, the support spring 61 restores its deformation and pushes the clamping block 5 in the groove 431 to the position when the electrode rod 82 is not clamped through the sliding block 6.

[0038] The difference from the above embodiment is that a bearing seat 211 is fixedly installed on both sides of the carrier 21, a guide rod 213 is provided on the carrier 21, both ends of the guide rod 213 are fixedly connected to the inner walls on both sides of the carrier 21, the guide rod 213 is located directly above the bearing seat 211, a sliding groove 214 is opened at the bottom of the carrier 21, the sliding groove 214 is located on one side of the placement groove 212, and a mounting seat 215 is fixedly connected to one side of the carrier 21, and the mounting seat 215 is located between the bearing seat 211 and the sliding groove 214.

[0039] The difference from the above embodiment is that the driving assembly 3 includes a driving rod 31, both ends of the driving rod 31 are rotatably mounted on the bearing seat 211, and one end of the driving rod 31 extends out from the bearing seat 211, a section of the driving rod 31 is a worm 32, the worm 32 is located in the carrier 21, a hand wheel 33 is coaxially fixedly connected to the extended end of the driving rod 31, the hand wheel 33 is located on one side of the worm 32, and a plurality of evenly distributed bidirectional thread sections are also provided on the driving rod 31 at intervals, which are located on the other side of the worm 32, each bidirectional thread section of the driving rod 31 corresponds to a placement groove 212, and the driving blocks 44 on the main clamping plate 41 and the auxiliary clamping plate 42 are assembled on the two ends of the bidirectional thread section of the driving rod 31 through threads.

[0040] Among them, after placing the heating plate 8 and the electrode rod 82, the driving rod 31 is rotated by turning the hand wheel 33 in the forward direction, and the driving rod 31 drives the driving block 44 to move through the bidirectional threaded rod thereon. When the welded heating plate 8 needs to be taken out, the driving rod 31 is driven to rotate by turning the hand wheel 33 in the reverse direction, and the driving rod 31 drives the driving block 44 to move in the reverse direction through the bidirectional threaded rod thereon.

[0041] The difference from the above-mentioned embodiment is that the driving assembly 3 also includes a transmission rod 34, which is rotatably mounted on the mounting seat 215, and the upper end of the transmission rod 34 is coaxially fixedly connected with a turbine 35, and the turbine 35 is engaged with one side of the worm 32, and the lower end of the transmission rod 34 is coaxially fixedly connected with a driving gear 36, and the driving gear 36 is located in the sliding groove 214.

[0042] When the driving rod 31 rotates forward, the transmission rod 34 and the driving gear 36 thereon are driven to rotate forward through the worm 32; when the driving rod 31 rotates reversely, the transmission rod 34 and the driving gear 36 thereon are driven to rotate reversely through the worm 32.

[0043] The difference from the above embodiment is that the pull rod 71 is slidably installed in the sliding groove 214, one end of the pull rod 71 is fixedly connected to the driving rack 711, the driving gear 36 is meshed with the driving gear 36, a plurality of positioning rods 72 are evenly arranged on the pull rod 71, and one end of each positioning rod 72 is fixedly connected to the pull rod 71, the other end of the positioning rod 72 extends to the other side of the carrier 21, and two convex strips 721 are symmetrically fixedly connected to the extended end of the positioning rod 72, the two convex strips 721 correspond to the two sides of the heating plate 8 respectively, and a positioning groove 722 is opened on the convex strip 721, a positioning protrusion 73 is slidably installed in the positioning groove 722, and a positioning spring 74 is fixedly connected between the upper end of the positioning protrusion 73 and the top of the positioning groove 722, and the positioning spring 74 pushes the positioning protrusion 73 to contact the heating plate 8.

[0044] Among them, when the driving gear 36 rotates forward, the driving rack 711 engaged with it pushes the pull rod 71 to move in the sliding groove 214 toward the driving rod 31, so that the pull rod 71 drags the positioning rod 72 to the top of the heating plate 8. At this time, the two convex strips 721 on the positioning rod 72 are respectively located on both sides of the heating plate 8, and the positioning spring 74 pushes the positioning protrusion 73 downward to contact the heating plate 8, fixing the heating plate 8 in the placement groove 212. When the driving gear 36 rotates reversely, the driving rack 711 engaged with it pushes the pull rod 71 to move in the sliding groove 214 in the direction away from the driving rod 31, so that the pull rod 71 pulls the positioning rod 72 and the positioning protrusion 73 thereon away from the top of the heating plate 8.

[0045] The difference from the above embodiment lies in that a connecting piece 22 is fixedly connected to each of the four corners at the bottom of the carrier 21, and the four connecting pieces 22 are symmetrical to each other. A connecting groove 23 is respectively provided at each of the four corners at the top of the carrier 21, and each connecting groove 23 corresponds to a connecting piece 22 at the bottom of the carrier 21. Connecting pieces 22 are also fixedly connected to the four corners on one side of the carrier 21, and corresponding connecting grooves 23 are also provided on the other side of the carrier 21. Several carriers 21 are stacked by means of the connecting pieces 22 and connecting grooves 23 thereon cooperating with each other.

[0046] When stacking, the upper carrier 21 is inserted into the connecting groove 23 on the upper side of the lower carrier 21 through the connecting piece 22 at the bottom, and the carrier 21 located on the side is inserted into the connecting groove 23 of the opposite carrier 21 through the connecting piece 22 at the side, so that the carriers 21 are tightly connected and will not be scattered during the welding process, thereby maintaining order, providing convenience for placing and taking out the brazing furnace 1.

[0047] The invention discloses a welding method for processing a semiconductor heating plate, which uses a positioning welding device.

[0048] Working principle: When in use, firstly, a plurality of heating plates 8 are sequentially placed in the placement slots 212 of a plurality of carriers 21, and the heating plates 8 are aligned so that the welding slots 81 on the heating plates 8 correspond to between the main clamping plate 41 and the auxiliary clamping plate 42. At this time, the main clamping plate 41 and the auxiliary clamping plate 42 are in an open state, and the positioning rod 72 is away from the placement slot 212. Then, one end of the electrode rod 82 is inserted into the welding slot 81 and the solder is placed. After the heating plates 8 are placed in the placement slots 212 of each carrier 21 and the electrode rod 82 is inserted, the welding is performed by the alignment. The hand wheel 33 is turned to rotate the driving rod 31, and the driving rod 31 drives the driving block 44 to move through the bidirectional thread thereon, and the driving block 44 drives the main clamping plate 41 and the auxiliary clamping plate 42 to move synchronously toward each other, approaching the electrode rod 82, aligning and clamping the electrode rod 82, and at the same time, the driving assembly 3 drives the transmission rod 34 and the driving gear 36 thereon to rotate forward through the worm 32, and the driving rod 71 moves in the sliding groove 214 toward the direction of the driving rod 31, so that the rod 71 drags the positioning rod 72 to the top of the heating plate 8. At this time, the positioning rod 72 The two convex strips 721 on the 2 are respectively located on both sides of the heating plate 8, and the positioning spring 74 pushes the positioning convex block 73 downward to abut against the heating plate 8, fixing the heating plate 8 in the placement groove 212 to prevent the heating plate 8 from moving in the subsequent process. In particular, when the clamping assembly 4 does not clamp the electrode rod 82, the clamping block 5 is located in the clamping groove 43, and the top block 52 under the clamping block 5 abuts against the top of the wedge block 433. At this time, the clamping block 5 is located at the top of the groove 431 and stretches the clamping spring 51. When the clamping assembly 4 clamps the electrode rod 82 When the main clamping plate 41 and the auxiliary clamping plate 42 move toward the electrode rod 82, the electrode rod 82 pushes the clamping block 5 located in the clamping groove 43 into the groove 431, and the top block 52 under the clamping block 5 slides down along the inclined surface of the wedge block 433. The clamping blocks 5 on the main clamping plate 41 and the auxiliary clamping plate 42 tightly abut against both sides of the electrode rod 82, so that the electrode rod 82 can remain vertical in the clamping groove 43, and the stretched clamping spring 51 applies a downward thrust to the clamped electrode rod 82 through the clamping block 5, so that the lower end of the electrode rod 82 abuts against the welding groove 81;

[0049] After the clamping assembly 4 and the positioning assembly 7 position the electrode rod 82 and the heating plate 8, the driving assembly 3 stops working, and then the multiple carriers 21 are stacked and stacked into a pile and put into the brazing furnace 1 for welding. During the welding process, the brazing furnace 1 heats up to melt the brazing material so that it is fully filled between the welding groove 81 and the electrode rod 82. The clamping block 5 pushes the electrode rod 82 downward so that the electrode rod 82 keeps contact with the bottom of the welding groove 81 in the molten brazing material. Then the brazing furnace 1 stops heating. After the brazing furnace 1 cools to room temperature, the stack loading mechanism 2 is taken out, and the multiple carriers 21 stacked into a pile are disassembled. When the heating plate 8 that has been welded is taken out, the hand wheel 33 is turned in the opposite direction to drive the stack. The driving rod 31 is rotated to drive the main clamping plate 41 and the auxiliary clamping plate 42 in the clamping state to separate, thereby completing the clamping and fixing of the electrode rod 82. The clamping block 5 squeezed into the groove 431 by the electrode rod 82 returns to the position before the electrode rod 82 is not clamped, and the top block 52 slides along the inclined surface of the wedge block 433 to the top of the wedge block 433, thereby lifting the clamping block 5 to the top of the groove 431 and stretching the clamping spring 51 again. At the same time, the driving gear 36 drives the pull rod 71 to drive the positioning rod 72 to disengage from the heating disk 8, thereby completing the fixation of the heating disk 8. After the welding-completed heating disk 8 is taken out from the placement groove 212, the above steps are repeated to weld the next batch of heating disks 8.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning welding device, characterized in that: The brazing furnace comprises a loading mechanism, wherein the loading mechanism comprises a carrier, a driving assembly, a clamping assembly and a positioning assembly, wherein a plurality of carriers are stacked into a pile and placed in the brazing furnace, a plurality of evenly arranged placement slots are provided at the bottom of the carrier, a heating plate is placed in the placement slots, a welding slot is provided on the heating plate, an electrode rod is inserted in the welding slot, a driving assembly is installed on each carrier, the clamping assembly comprises a main clamping plate, a sub-clamping plate and a clamping block, the clamping blocks are respectively installed on the main clamping plate and the sub-clamping plate, the driving assembly drives the main clamping plate and the sub-clamping plate to move toward each other to clamp and fix the electrode rod, the clamping block applies a downward thrust to the clamped electrode rod, the positioning assembly comprises a pull rod and a positioning rod, the pull rod is installed at the bottom of the carrier and cooperates with the driving assembly, a plurality of positioning rods are connected to the pull rod, the positioning rod corresponds to the placement slot, the driving assembly drives the pull rod while driving the clamping assembly, and the pull rod fixes the heating plate through the positioning rod; a sliding slot is provided at the bottom of the carrier, and a mounting seat is fixedly connected to one side of the carrier; The driving assembly includes a driving rod and a transmission rod. Both ends of the driving rod are rotatably mounted on the bearing seat, and one end of the driving rod extends out from the bearing seat. One section of the driving rod is a worm gear, which is located in the carrier. A handwheel is coaxially fixedly connected to the extended end of the driving rod, and the handwheel is located on one side of the worm gear. The driving rod is also provided with a plurality of evenly distributed bidirectional threaded sections at intervals, which are located on the other side of the worm gear. Each bidirectional threaded section of the driving rod corresponds to a placement groove, and the driving blocks on the main clamping plate and the auxiliary clamping plate are assembled on both ends of the bidirectional threaded section of the driving rod through threads; the transmission rod is rotatably mounted on the mounting seat, and the upper end of the transmission rod is coaxially fixedly connected to a worm wheel, which is fitted on one side of the worm gear. The lower end of the transmission rod is coaxially fixedly connected to a driving gear, and the driving gear is located in the sliding groove.

2. A positioning welding device according to claim 1, characterized in that: The main clamping plate and the auxiliary clamping plate are both provided with half a clamping groove, and the clamping grooves on the two plates correspond to each other. A groove is provided in the clamping grooves on the main clamping plate and the auxiliary clamping plate. A fixed shaft is fixedly connected to one side of the groove, and a wedge block is fixedly connected to the other side of the groove. The inclined surface of the wedge block faces the groove. A driving block is welded on one side of the main clamping plate and the auxiliary clamping plate.

3. A positioning welding device according to claim 2, characterized in that: One end of the clamping block is rotatably mounted on the fixed shaft, a clamping spring is fixedly connected between the lower side of the clamping block and the bottom of the groove, the clamping spring is sleeved on the fixed shaft, a top block is fixedly connected to the lower side of the other end of the clamping block, the top block has an arc-shaped surface corresponding to the inclined surface of the wedge block, and a friction pattern is provided on the outward side of the clamping block.

4. A positioning welding device according to claim 3, characterized in that: The clamping assembly also includes a sliding block, which is slidably installed in the groove and located in the middle of the groove. A supporting spring is fixedly connected between one side of the sliding block and the inner wall of the groove, and the supporting spring pushes the sliding block to contact the clamping block.

5. A positioning welding device according to claim 4, characterized in that: A bearing seat is fixedly installed on both sides of the carrier, and a guide rod is arranged on the carrier. The two ends of the guide rod are fixedly connected to the inner walls on both sides of the carrier. The guide rod is located directly above the bearing seat, the sliding groove is located on one side of the placement groove, and the mounting seat is located between the bearing seat and the sliding groove.

6. A positioning welding device according to claim 5, characterized in that: The pull rod is slidably installed in the sliding groove, one end of the pull rod is fixedly connected to a driving rack, the driving rack is meshed with the driving gear, a number of positioning rods are evenly arranged on the pull rod, and one end of each positioning rod is fixedly connected to the pull rod, the other end of the positioning rod extends to the other side of the carrier, and two convex strips are symmetrically fixedly connected to the extended end of the positioning rod, the two convex strips correspond to the two sides of the heating plate respectively, and a positioning groove is provided on the convex strip, a positioning protrusion is slidably installed in the positioning groove, a positioning spring is fixedly connected between the upper end of the positioning protrusion and the top of the positioning groove, and the positioning spring pushes the positioning protrusion to contact the heating plate.

7. A positioning welding device according to claim 1, characterized in that: A connecting piece is fixedly connected to each of the four corners of the bottom of the carrier, and the four connecting pieces are symmetrical to each other. A connecting groove is opened on each of the four corners of the top of the carrier, and each connecting groove corresponds to a connecting piece at the bottom of the carrier. Connecting pieces are also fixedly connected to the four corners of one side of the carrier, and corresponding connecting grooves are opened on the other side of the carrier. Several carriers are stacked by means of the connecting pieces and connecting grooves thereon cooperating with each other.

8. A welding method for semiconductor heating plate processing, characterized in that: A positioning welding device as described in any one of claims 1 to 7 is used.

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