A double-station automatic welding machine for small transformers

Abstract

The invention relates to a double-station automatic welding machine for small transformers, which belongs to the technical field of welding. The double-station automatic welding machine for small transformers comprises a base, wherein a transformer shell is arranged at the center of the upper side of the base, clamping mechanisms for fixing the transformer shell are arranged on both sides of the base, a plurality of columns are fixedly arranged around the upper side of the base, a top plate is fixedly arranged on the top ends of the plurality of columns, a lifting cylinder is fixedly arranged on the upper side of the top plate, a lifting plate slidably arranged between the plurality of columns is fixedly arranged on the output end of the lifting cylinder, a material discharge box is slidably arranged on the front and rear sides of the lifting plate, a driving mechanism for driving the material discharge box to slide is arranged on the lifting plate, a material discharge port is opened on the bottom of one side of the two material discharge boxes, and a material discharge mechanism cooperating with the material discharge port is arranged on the bottom of the two material discharge boxes. The invention can simultaneously perform double-station welding, thereby improving the welding efficiency of the transformer.

Description

Technical Field

[0001] The invention belongs to the technical field of welding, and in particular relates to a double-station automatic welding machine for small transformers. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. It plays a vital role in domestic electricity use. The heat sink of the transformer is an important component used to dissipate heat from the transformer. It is generally composed of metal sheets evenly distributed at equal intervals and welded to the outer surface of the transformer housing.

[0003] For example, in the Chinese invention patent with the announcement number CN114101994B and the name of a transformer heat sink automatic welding device, the transmission rack is provided with a transmission component for storing and conveying the heat sink, and the transmission rack is provided with a welding component for welding and detection. Although the above-mentioned prior art automatically welds the heat sink to the transformer through the welding component, generally in order to improve the heat dissipation effect of the transformer, it is necessary to weld multiple heat sinks on the front and rear sides of the transformer. Only one side can be welded by the above-mentioned prior art. For the welding of the other side of the transformer, the above-mentioned welding operation needs to be repeated, which reduces the welding efficiency. In order to be able to perform dual-station welding at the same time, a dual-station small transformer automatic welding machine is now needed. Summary of the invention

[0004] The purpose of the present invention is to provide a double-station small transformer automatic welding machine with simple structure and reasonable design in order to solve the above problems.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] A double-station small transformer automatic welding machine comprises a base, a transformer housing is arranged at the center of the upper side of the base, clamping mechanisms for fixing the transformer housing are arranged on both sides of the base, a plurality of columns are fixedly arranged around the upper side of the base, a top plate is fixedly arranged on the top of the plurality of columns, a lifting cylinder is fixedly arranged on the upper side of the top plate, a lifting plate slidably arranged between the plurality of columns is fixedly arranged on the output end of the lifting cylinder, a material discharge box is slidably arranged on the front and rear sides of the lifting plate, a driving mechanism for driving the material discharge box to slide is arranged on the lifting plate, a material discharge port is opened at the bottom of one side of the two material discharge boxes, a material discharge mechanism cooperating with the material discharge port is arranged at the bottom of the two material discharge boxes, an internal heat dissipation mechanism cooperating with the inner side wall of the transformer housing is arranged on one side of the material discharge box, an external heat dissipation mechanism cooperating with the heat sink of the outer side wall of the transformer housing is lifted and lowered on the other side of the material discharge box, a welding gun is arranged at one end of the external heat dissipation mechanism, and a lifting mechanism for driving the external heat dissipation mechanism to lift and lower is arranged on one side of the material discharge box.

[0007] As a further optimization scheme of the present invention, the unloading mechanism includes two groups of mounting plates fixedly arranged at the bottom of the unloading box, a first rotating shaft located on one side of the unloading port is rotatably arranged between one group of mounting plates, and a second rotating shaft located on the other side of the unloading port is rotatably arranged between the other group of mounting plates, a plurality of unloading rollers are fixedly arranged on the first rotating shaft and the second rotating shaft, a unloading motor for driving the first rotating shaft to rotate is fixedly arranged on one side of the unloading box, and a reverse transmission component is arranged between the first rotating shaft and the second rotating shaft.

[0008] As a further optimization solution of the present invention, the reverse transmission assembly includes a driving gear fixedly arranged at one end of the first rotating shaft, and a driven gear meshing with the driving gear is fixedly arranged at one end of the second rotating shaft.

[0009] As a further optimization solution of the present invention, the front and rear sides of the lifting plate are provided with slide grooves respectively slidably matched with the discharge boxes, and the interiors of the two discharge boxes are provided with pushing mechanisms.

[0010] As a further optimization scheme of the present invention, the pushing mechanism includes a pushing cylinder fixedly arranged on one side of the discharge box, and the output end of the pushing cylinder is fixedly provided with a pushing frame sliding on the inner side of the discharge box, and a number of equidistant partition plates are fixedly arranged on both sides of the pushing frame, and the bottoms of the several partition plates pass through and cooperate with the discharge port, and two through grooves are opened on the other side of the discharge box, which respectively cooperate with the partition plates.

[0011] As a further optimization scheme of the present invention, the driving mechanism includes a first screw rod rotatably arranged on one side of the slide groove and a second screw rod rotatably arranged on the other side of the slide groove, and both sides of the discharge box are fixedly provided with threaded sleeves which are respectively threadedly sleeved on the first screw rod and the second screw rod, and one side of the lifting plate is fixedly provided with a second servo motor which drives the first screw rod to rotate, a main synchronous wheel is fixedly provided at one end of the first screw rod, and a slave synchronous wheel is fixedly provided at one end of the second screw rod, and a synchronous belt is meshed between the main synchronous wheel and the slave synchronous wheel.

[0012] As a further optimization scheme of the present invention, the internal heat dissipation mechanism includes a horizontal plate fixedly arranged on one side of the bottom of the discharge box, a vertical pipe cooperating with the inner wall of the transformer housing is fixedly arranged on the lower side of the horizontal plate, a plurality of internal air outlet holes facing the inner wall of the transformer housing are opened on one side of the vertical pipe, and an internal air inlet pipe is connected to the upper end of the vertical pipe.

[0013] As a further optimization scheme of the present invention, the external heat dissipation mechanism includes a first fixed tube that is lifted and lowered on one side of the heat sink and a second fixed tube that is lifted and lowered on the other side of the heat sink, one end of the first fixed tube and the second fixed tube are connected to an external air intake pipe, the other ends of the first fixed tube and the second fixed tube are slidably connected to a sliding tube, the sliding tube is positioned between the first fixed tube and the second fixed tube by positioning screws, one side of the first fixed tube, the second fixed tube and the sliding tube are provided with a plurality of outgoing air holes facing the heat sink, and the welding gun is arranged at one end of the sliding tube.

[0014] As a further optimization scheme of the present invention, the lifting mechanism includes a hanging plate fixedly arranged on one side of the unloading box, a guide sleeve is fixedly arranged on the lower side of the hanging plate, a guide groove is opened on the inner side of the guide sleeve, a lifting screw is rotatably arranged on the inner side of the guide groove, a first servo motor driving the lifting screw to rotate is fixedly arranged on the upper side of the hanging plate, the outer threaded sleeve of the lifting screw is provided with a slider slidingly connected to the inner side of the guide groove, and one end of the first fixed tube and the second fixed tube are fixedly arranged on the slider.

[0015] As a further optimization scheme of the present invention, a support groove is provided at the center of the base, a heat dissipation port is opened at the center of the support groove, the transformer housing is arranged on the support groove, the clamping mechanism includes a fixing plate fixedly provided on the upper side of the base, a clamping cylinder is fixedly provided on one side of the fixing plate, and a clamping plate cooperating with the transformer housing is fixedly provided on the output end of the clamping cylinder.

[0016] The beneficial effects of the present invention are:

[0017] 1. In the present invention, by arranging welding guns on the front and rear sides of the lifting plate, the heat sink can be welded to the front and rear sides of the transformer at the same time, and the heat sink can be welded to both sides of the transformer at the same time through the double station, thereby improving the welding efficiency. In addition, the driving mechanism can drive the unloading boxes on the two stations to slide horizontally in the slide groove, thereby making the welding guns at the bottom of the two unloading boxes slide on the outside of the transformer, so that multiple heat sinks can be welded continuously, further improving the welding efficiency.

[0018] 2. In the present invention, the first rotating shaft is driven to rotate by the unloading motor, and then the unloading roller on the first rotating shaft is driven to rotate. At the same time, the driving gear on the first rotating shaft is meshed with the driven gear on the second rotating shaft, so that the second rotating shaft can be driven to rotate in the opposite direction, thereby making the unloading roller on the second rotating shaft rotate in the opposite direction to the unloading roller on the first rotating shaft, so that the unloading rollers on the first rotating shaft and the second rotating shaft clamp the heat sink unloaded from the unloading port and unload the heat sink, so that the heat sink automatically falls to the outer surface of the transformer, and there is no need for personnel to manually fit the heat sink to the outer surface of the transformer, thereby improving the unloading efficiency and in the welding process. When the heat sink is welded, the first and second feeder wheels are used to fix the heat sink, so as to prevent the heat sink from shaking during welding and affecting the welding accuracy. After the welding of the current heat sink is completed, the pushing cylinder drives the pushing frame to slide inside the feeding box, so that the heat sink on the pushing frame is close to the feeding port. When the two partition plates are located on the upper side of the feeding port, the heat sink between the two partition plates can slide out of the feeding port, so that the heat sink can be automatically unloaded by the unloading rollers on the first and second rotating shafts. After the unloading is complete, the welding gun does not need to be raised to weld from the bottom of the heat sink upwards, thereby improving the welding efficiency.

[0019] 3. In the present invention, the heat generated by welding the transformer housing and the heat sink can be automatically dissipated through the internal heat dissipation mechanism and the external heat dissipation mechanism, thereby improving the heat dissipation effect and preventing excessive thermal stress from being generated when multiple heat sinks are welded continuously, thereby preventing cracks from occurring at the weld during cooling. The heat at the weld can be dissipated quickly, and the temperatures inside and outside are consistent, making the temperatures inside and outside more uniform, thereby preventing excessive temperature differences from reducing the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a first overall structural schematic diagram of the present invention;

[0021] Figure 2 is a second overall structural schematic diagram of the present invention;

[0022] Figure 3 is a third overall structural schematic diagram of the present invention;

[0023] Figure 4 is a fourth overall structural schematic diagram of the present invention;

[0024] Figure 5 is a fifth overall structural schematic diagram of the present invention;

[0025] Figure 6 is a sixth overall structural schematic diagram of the present invention;

[0026] Figure 7It is a schematic diagram of the overall structure of the material unloading box, the lifting mechanism, the material unloading mechanism, the external heat dissipation mechanism and the welding gun of the present invention;

[0027] Figure 8 The present invention Figure 2 Enlarged view of point A in the middle;

[0028] Fig. 9 The present invention Figure 3 Enlarged view of point B in the middle;

[0029] Fig.10 The present invention Figure 3 Enlarged view of point C in the middle;

[0030] Fig.11 The present invention Figure 4 Enlarged view of point D in the middle;

[0031] Fig.12 The present invention Figure 5 Enlarged view of point E in the middle;

[0032] Fig.13 The present invention Figure 5 Enlarged view of point F in the middle;

[0033] Fig.14 The present invention Figure 6 Enlarged view of point S in the middle.

[0034] In the figure: 1. base; 2. column; 3. top plate; 4. lifting plate; 5. lifting cylinder; 6. unloading box; 601. push cylinder; 602. push frame; 603. partition plate; 604. through groove; 7. lifting mechanism; 701. hanging plate; 702. guide sleeve; 703. guide groove; 704. lifting screw rod; 705. first servo motor; 706. slider; 8. unloading mechanism; 801. first rotating shaft; 802. second rotating shaft; 803. unloading roller; 804. mounting plate; 805. unloading motor; 806. driving gear; 807. driven gear; 9. external heat dissipation mechanism; 901. first fixed tube; 902. second fixed tube; 903. external inlet Air pipe; 904, outgoing air hole; 905, positioning screw; 906, sliding pipe; 10, internal heat dissipation mechanism; 1001, horizontal plate; 1002, vertical pipe; 1003, internal air outlet hole; 1004, internal air inlet pipe; 11, slide groove; 12, driving mechanism; 1201, first screw rod; 1202, second servo motor; 1203, main synchronous wheel; 1204, synchronous belt; 1205, second screw rod; 1206, slave synchronous wheel; 1207, threaded sleeve; 13, clamping mechanism; 1301, fixing plate; 1302, clamping cylinder; 1303, clamping plate; 14, transformer housing; 15, supporting groove; 16, heat dissipation port; 17, feeding port; 18, welding gun. DETAILED DESCRIPTION

[0035] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0036] Example 1: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a double-station small transformer automatic welding machine includes a base 1, a support groove 15 is arranged at the center of the base 1, a heat dissipation port 16 is opened at the center of the support groove 15, and the internal heat of the transformer housing 14 is easily dissipated through the heat dissipation port 16. The heat dissipation port 16 is smaller than the size of the support groove 15. The transformer housing 14 can be supported by the edges of the support groove 15 and the heat dissipation port 16. The transformer housing 14 is arranged at the center of the upper side of the base 1. The transformer housing 14 adopts an annular housing that penetrates the upper and lower parts. The upper cover of the transformer housing 14 is connected to the After the lower cover and other heat sinks are welded, they are installed by screws. The transformer housing 14 is set on the edge of the support groove 15. Both sides of the base 1 are provided with clamping mechanisms 13 for fixing the transformer housing 14. Taking one of the clamping mechanisms 13 as an example, the clamping mechanism 13 includes a fixing plate 1301 fixedly set on the upper side of the base 1, a clamping cylinder 1302 is fixedly set on one side of the fixing plate 1301, and a clamping plate 1303 matching the transformer housing 14 is fixedly set on the output end of the clamping cylinder 1302. One side of the clamping plate 1303 A rubber sheet or sponge layer is provided to protect the transformer housing 14 and prevent the transformer housing 14 from being indented. When in use, the transformer housing 14 is placed on the support groove 15, and then the clamping cylinders 1302 on both sides of the transformer housing 14 respectively drive the clamping plates 1303 to move, so that the two sides of the transformer housing 14 can be clamped by the two clamping plates 1303. Four columns 2 are fixedly provided on the upper side of the base 1, and a top plate 3 is fixedly provided on the top of the four columns 2. A lifting plate 3 is fixedly provided on the upper side of the top plate 3. A lowering cylinder 5, an output end of the lifting cylinder 5 is fixedly provided with a lifting plate 4, the lifting plate 4 is slidably mounted on the column 2 at four corners, and the lifting plate 4 is guided by the column 2, and a slide groove 11 is provided on the front and rear sides of the lifting plate 4, and a discharge box 6 is slidably provided on the inner side of the slide groove 11, and a plurality of heat sinks (not shown in the figure) are vertically arranged inside the discharge box 6, and a discharge port 17 is provided on the bottom of one side of the two discharge boxes 6, and the width of the discharge port 17 is slightly larger than the thickness of the heat sink, and a plurality of heat sinks can be discharged in batches through the discharge port 17.

[0037] like Figure 4 , Figure 5 , Figure 6 , Fig.11 , Fig.12 , Fig.14 As shown, the interior of the two material boxes 6 is provided with a pushing mechanism, which includes a pushing cylinder 601 fixedly arranged on one side of the material box 6, and a pushing frame 602 sliding on the inner side of the material box 6 is fixedly arranged at the output end of the pushing cylinder 601. The pushing frame 602 adopts a square structure with one side open and the other three sides sealed, and the open side faces the material outlet 17. A plurality of equidistant partition plates 603 are fixedly arranged on both sides of the pushing frame 602, and the distance between the plurality of partition plates 603 is consistent with the thickness of the heat sink, so as to separate the plurality of heat sinks and make the plurality of heat sinks The materials are discharged according to the gaps respectively, and the bottoms of several partition plates 603 pass through and cooperate with the discharge port 17. Two through grooves 604 are provided on the other side of the discharge box 6 and cooperate with the partition plates 603 respectively. When in use, several heat sinks are respectively inserted into the gaps between the several partition plates 603, and then the pushing cylinder 601 drives the pushing frame 602 to slide on the inner side of the discharge box 6, so that the partition plates 603 on the inner side of the pushing frame 602 drive the several heat sinks to slide. When the bottoms of two adjacent partition plates 603 move to the upper side of the discharge port 17, the heat sink can be discharged through the discharge port 17.

[0038] like Figure 1 , Figure 3 , Figure 4 , Fig.10 , Fig.11 As shown, a driving mechanism 12 for driving the unloading box 6 to slide is arranged on the lifting plate 4, and the driving mechanism 12 includes a first screw rod 1201 rotatably arranged on one side of the slide slot 11 and a second screw rod 1205 rotatably arranged on the other side of the slide slot 11, and threaded sleeves 1207 respectively threadedly sleeved on the first screw rod 1201 and the second screw rod 1205 are fixedly arranged on both sides of the unloading box 6, and a second servo motor 1202 for driving the first screw rod 1201 to rotate is fixedly arranged on one side of the lifting plate 4, a main synchronous wheel 1203 is fixedly arranged on one end of the first screw rod 1201, and a slave synchronous wheel 1206 is fixedly arranged on one end of the second screw rod 1205, and the main synchronous wheel 1203 and the slave synchronous wheel 1206 are fixedly arranged. A synchronous belt 1204 is meshed between the synchronous wheels 1206. When in use, the first screw rod 1201 is driven to rotate by the second servo motor 1202, and the main synchronous wheel 1203 on the first screw rod 1201 is driven to rotate. The synchronous belt 1204 drives the slave synchronous wheel 1206 to rotate in the same direction, so that the second screw rod 1205 and the first screw rod 1201 rotate in the same direction synchronously, and at the same time, the threaded sleeves 1207 on both sides of the discharge box 6 slide along the slide groove 11, driving the discharge box 6 to slide on the inner side of the slide groove 11, so that the heat sink in the discharge box 6 is continuously discharged to the outer surface of the transformer housing 14, which is convenient for continuous welding and improves welding efficiency.

[0039] like Figure 1, Figure 4 , Figure 5 , Figure 7 , Fig.11 , Fig.12 As shown, the bottoms of the two unloading boxes 6 are each provided with an unloading mechanism 8 that cooperates with the unloading port 17, and the unloading mechanism 8 includes two groups of mounting plates 804 fixedly arranged at the bottom of the unloading box 6, a first rotating shaft 801 is rotatably arranged between one group of mounting plates 804, and a second rotating shaft 802 is rotatably arranged between the other group of mounting plates 804, and a plurality of unloading rollers 803 are fixedly arranged on the first rotating shaft 801 and the second rotating shaft 802, and the first rotating shaft 801 and the plurality of unloading rollers 803 thereon and the second rotating shaft 802 and the plurality of unloading rollers 803 thereon are respectively located on both sides of the unloading port 17, and the unloading rollers 803 on the first rotating shaft 801 and the unloading rollers 803 on the second rotating shaft 802 can be used to clamp and unload the heat sink, and the edges of the unloading rollers 803 are made of rubber material, and the rubber material is used to release the heat sink. The high-quality unloading roller 803 can telescopically clamp the heat sink and increase the friction between the two to facilitate the continuous lowering of the heat sink and prevent slipping. In this embodiment, three unloading rollers 803 are arranged on one rotating shaft, and the specific number can be adjusted. The edge distance between the first rotating shaft 801 and the two adjacent unloading rollers 803 on the second rotating shaft 802 is less than the thickness of the heat sink. A unloading motor 805 for driving the first rotating shaft 801 to rotate is fixedly arranged on one side of the unloading box 6, and a driving gear 806 is fixedly arranged at one end of the first rotating shaft 801, and a driven gear 807 meshing with the driving gear 806 is fixedly arranged at one end of the second rotating shaft 802. When in use, the first rotating shaft 801 is driven to rotate by the unloading motor 805, so that the three unloading rollers 803 on the first rotating shaft 801 can be rotated (such as Fig.11 , the unloading roller 803 on the first rotating shaft 801 rotates counterclockwise), and at the same time, the driving gear 806 at one end of the first rotating shaft 801 drives the driven gear 807 to rotate, so that the second rotating shaft 802 on the side of the driven gear 807 rotates in the opposite direction, so that the three unloading rollers 803 on the second rotating shaft 802 can rotate in the opposite direction (such as Fig.11 , the unloading roller 803 on the second rotating shaft 802 rotates clockwise), the first rotating shaft 801 can be rotated and the three unloading rollers 803 on the first rotating shaft 801 can be driven to rotate, and the second rotating shaft 802 can be driven to rotate and the three unloading rollers 803 on the second rotating shaft 802 can be driven to rotate at the same time. Through two sets of unloading rollers 803 rotating in opposite directions, the heat sink between them can be clamped and unloaded, so that the heat sink falls to the outer surface of the transformer housing 14, and when the heat sink is unloaded to the end point, the unloading roller 803 can also clamp the heat sink to prevent the heat sink from shaking during the welding process, which affects the welding quality.

[0040] Embodiment 2: Based on embodiment 1, further improvement is made in that Figure 1 , Figure 4 , Fig.11 As shown, one side of the material box 6 is provided with an internal heat dissipation mechanism 10 that cooperates with the inner wall of the transformer housing 14. The internal heat dissipation mechanism 10 includes a horizontal plate 1001 fixedly arranged on one side of the bottom of the material box 6, and a vertical pipe 1002 that cooperates with the inner wall of the transformer housing 14 is fixedly arranged on the lower side of the horizontal plate 1001. One side of the vertical pipe 1002 is provided with a plurality of inner air outlet holes 1003 facing the inner wall of the transformer housing 14. The upper end of the vertical pipe 1002 is connected to an inner air inlet pipe 1004, and one end of the inner air inlet pipe 1004 is connected to the fan ( (not shown in the figure), the gas can be blown into the inner air inlet pipe 1004 through the fan, and then into the interior of the vertical pipe 1002, and finally blown out through a plurality of inner air outlet holes 1003 on one side of the vertical pipe 1002. Since the outlet ends of the inner air outlet holes 1003 correspond to the inner sides of the welding parts of the transformer housing 14, the heat sink can dissipate heat during the welding process, thereby improving the heat dissipation effect of the welding parts, preventing the thermal stress inside the previous welding part from affecting the next welding part during continuous welding, avoiding cracks in the welding parts due to thermal stress, and improving the quality of welding.

[0041] like Figure 2 , Figure 3 , Figure 5 , Figure 7 , Figure 8 , Fig. 9 , Fig.13As shown, the other side of the material box 6 is lifted and provided with an external heat dissipation mechanism 9 that cooperates with the heat sink of the outer wall of the transformer housing 14. The external heat dissipation mechanism 9 includes a first fixed tube 901 that is lifted and provided on one side of the heat sink and a second fixed tube 902 that is lifted and provided on the other side of the heat sink. One end of the first fixed tube 901 and the second fixed tube 902 are both connected with an external air intake pipe 903, and the other ends of the first fixed tube 901 and the second fixed tube 902 are both slidably connected with a sliding tube 906. The sliding tube 906 is positioned between the first fixed tube 901 and the second fixed tube 902 by a positioning screw 905, and the positioning screw 905 can make the sliding tube 906 slide out a certain length When welding, the first fixed tube 901 and the second fixed tube 902 are fixed to one end of the first fixed tube 901 and the second fixed tube 902 to prevent the sliding tube 906 from sliding during welding and to avoid affecting the welding quality. The first fixed tube 901, the second fixed tube 902 and the sliding tube 906 are all provided with a plurality of outgoing air holes 904 facing the heat sink on one side. One end of the external air inlet pipe 903 is connected to a fan (not shown in the figure) through a hose (not shown in the figure). The fan can blow gas into the first fixed tube 901 and the second fixed tube 902, and then into the interior of the sliding tube 906, and finally blown out through the plurality of outgoing air holes 904 on one side of the first fixed tube 901, the second fixed tube 902 and the sliding tube 906. The heat sink is made of steel plate, so when one side of the heat sink is welded, the heat at the welding part is easily transferred to the heat sink, and the gas is blown out through the first fixed tube 901, the second fixed tube 902 and the plurality of outgoing air holes 904 on one side of the sliding tube 906, so that the gas is blown to the surface of the heat sink, so that the heat on the surface of the heat sink is lost, the cooling effect of the heat sink is improved, and the welding part of one end of the heat sink is prevented from affecting the welding of the next heat sink due to excessive heat, and the time between the welding of the two heat sinks is reduced, thereby improving the welding efficiency, and making the internal and external temperatures of the transformer housing 14 consistent, preventing the temperature difference from being too large, which may cause damage to the transformer housing 14, and the welding gun 18 is set at At one end of the sliding tube 906, the welding gun 18 is located between two adjacent heat sinks for welding. The cross-sectional diameters of the first fixed tube 901 and the second fixed tube 902 are smaller than the distance between the two adjacent heat sinks, so that the welding gun 18 is located between the two adjacent heat sinks for welding. Since the external heat dissipation mechanism 9 includes two sliding tubes 906, two welding guns 18 are provided, and are respectively provided at one end of the two sliding tubes 906. The two welding guns 18 can simultaneously weld both sides of the contact part between the heat sink and the transformer housing 14. By welding on both sides at the same time, the influence of thermal stress can be offset, thereby improving the welding strength, which is convenient for the subsequent heat sink to perform better heat dissipation.

[0042] like Figure 1 , Figure 2 , Figure 3 , Figure 7 , Figure 8 , Fig. 9As shown, a welding gun 18 is arranged at one end of the external heat dissipation mechanism 9, a lifting mechanism 7 for driving the external heat dissipation mechanism 9 to rise and fall is arranged at one side of the material box 6, the lifting mechanism 7 comprises a hanging plate 701 fixedly arranged at one side of the material box 6, a guide sleeve 702 is fixedly arranged at the lower side of the hanging plate 701, a guide groove 703 is provided at the inner side of the guide sleeve 702, a lifting screw rod 704 is rotatably arranged at the inner side of the guide groove 703, a first servo motor 705 for driving the lifting screw rod 704 to rotate is fixedly arranged at the upper side of the hanging plate 701, a slider 706 slidably connected to the inner side of the guide groove 703 is provided on the outer thread sleeve of the lifting screw rod 704, and the first fixed tube 9 01 and one end of the second fixed tube 902 are fixedly arranged on the slider 706. When in use, the first servo motor 705 drives the lifting screw rod 704 to rotate, so as to drive the slider 706 to rise and fall and slide on the inner side of the guide sleeve 702, thereby driving the first fixed tube 901, the second fixed tube 902 and the sliding tube 906 on one side of the slider 706 to rise and fall, so that the welding gun 18 at one end of the two sliding tubes 906 is lifted and lowered along the side of the heat sink, so that the heat sink is welded to the outer surface of the transformer housing 14, and in the process of welding, it can be welded by lifting upwards or lowering downwards, which can improve the welding efficiency.

[0043] It should be noted that when using this double-station small transformer automatic welding machine, the transformer housing 14 is first placed on the support groove 15, and then the clamping cylinders 1302 on both sides of the transformer housing 14 respectively drive the clamping plates 1303 to move, so that the two sides of the transformer housing 14 can be clamped by the two clamping plates 1303, and then the lifting cylinder 5 drives the lifting plate 4 to descend, so that the lower surface of the lifting plate 4 presses the upper end of the transformer housing 14. During the descent, the internal heat dissipation mechanism 10 located on one side of the discharge box 6 descends to the inside of the transformer housing 14, and the external heat dissipation mechanism located on the other side of the discharge box 6 descends to the outside of the transformer housing 14, and then a plurality of heat sinks are respectively inserted into the spaces between the plurality of partition plates 603. The push cylinder 601 then drives the push frame 602 to slide on the inner side of the discharge box 6, so that the partition plate 603 on the inner side of the push frame 602 drives a number of heat sinks to slide. When the bottoms of two adjacent partition plates 603 move to the upper side of the discharge port 17, the heat sink can be discharged through the discharge port 17. When the bottom of the heat sink slides between the first rotating shaft 801 and the discharge roller 803 on the second rotating shaft 802, the first rotating shaft 801 is driven to rotate by the discharge motor 805, so that the three discharge rollers 803 on the first rotating shaft 801 can rotate. At the same time, the driving gear 806 at one end of the first rotating shaft 801 drives the driven gear 807 to rotate, so that the second rotating shaft 802 on the side of the driven gear 807 rotates in the opposite direction. The three material unloading rollers 803 on the second rotating shaft 802 can be made to rotate in opposite directions, and the first rotating shaft 801 can be made to rotate and drive the three material unloading rollers 803 on the first rotating shaft 801 to rotate at the same time, and the second rotating shaft 802 can be made to rotate and drive the three material unloading rollers 803 on the second rotating shaft 802 to rotate at the same time. Through the two sets of material unloading rollers 803 rotating in opposite directions, the heat sink between them can be clamped and unloaded, and then the welding gun 18 is energized, and then the lifting screw rod 704 is driven to rotate by the first servo motor 705, so that the slider 706 can be driven to lift and slide on the inner side of the guide sleeve 702, thereby driving the first fixed tube 901, the second fixed tube 902 and the sliding tube 906 on one side of the slider 706 to lift and lower, so that the two slides The welding gun 18 at one end of the tube 906 is raised and lowered along the side of the heat sink, so that the heat sink is welded to the outer surface of the transformer housing 14, and during the welding process, the gas is blown into the inner side of the first fixed tube 901, the second fixed tube 902 and the vertical tube 1002 through the blower on one side of the inner air inlet pipe 1004 and the outer air inlet pipe 903, and finally the heat sink and the outer side of the transformer housing 14 are cooled through the outgoing air holes 904 on the first fixed tube 901, the second fixed tube 902 and the sliding tube 906, and the inner side of the transformer housing 14 is cooled through the inner air outlet holes 1003 on the vertical tube 1002, so that the welding part, the transformer housing 14 and the heat sink are cooled at the same time during welding. When a heat sink is welded,The first screw rod 1201 is driven to rotate by the second servo motor 1202, and the main synchronous wheel 1203 on the first screw rod 1201 is driven to rotate, and the slave synchronous wheel 1206 is driven to rotate in the same direction by the synchronous belt 1204, so that the second screw rod 1205 and the first screw rod 1201 are synchronously rotated in the same direction, and the threaded sleeves 1207 on both sides of the material box 6 slide along the slide groove 11, driving the material box 6 to slide on the inner side of the slide groove 11, and the material pushing frame 6 is driven by the material pushing cylinder 601. 02 slides inside the material box 6, so that the partition plate 603 inside the push frame 602 drives several heat sinks to slide. When the front heat sink slides to the position of the material discharge port 17, the heat sink is discharged between the first rotating shaft 801 and the material discharge roller 803 on the second rotating shaft 802. Repeat the above steps, the remaining heat sinks can be continuously welded to the outer surface of the transformer housing 14, and double-station welding is performed, so that the heat sinks are welded on the front and rear sides of the transformer housing 14 at the same time, improving welding efficiency.

[0044] The above-mentioned embodiments only express several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A double-station small transformer automatic welding machine, comprising a base (1), characterized in that: A transformer housing (14) is arranged at the center of the upper side of the base (1), and clamping mechanisms (13) for fixing the transformer housing (14) are arranged on both sides of the base (1). A plurality of columns (2) are fixedly arranged around the upper side of the base (1), and a top plate (3) is fixedly arranged on the top ends of the plurality of columns (2). A lifting cylinder (5) is fixedly arranged on the upper side of the top plate (3), and a lifting plate (4) slidably arranged between the plurality of columns (2) is fixedly arranged at the output end of the lifting cylinder (5), and a material discharge box (6) is slidably arranged on the front and rear sides of the lifting plate (4), and a driving material discharge box (6) is arranged on the lifting plate (4). A sliding drive mechanism (12), a material discharge port (17) is provided at the bottom of one side of the two material discharge boxes (6), a material discharge mechanism (8) cooperating with the material discharge port (17) is provided at the bottom of the two material discharge boxes (6), an internal heat dissipation mechanism (10) cooperating with the inner wall of the transformer housing (14) is provided on one side of the material discharge box (6), an external heat dissipation mechanism (9) cooperating with the heat dissipation fins on the outer wall of the transformer housing (14) is provided on the other side of the material discharge box (6), a welding gun (18) is provided at one end of the external heat dissipation mechanism (9), and a lifting mechanism (7) for driving the external heat dissipation mechanism (9) to be lifted and lowered is provided on one side of the material discharge box (6); The unloading mechanism (8) comprises two groups of mounting plates (804) fixedly arranged at the bottom of the unloading box (6), a first rotating shaft (801) located on one side of the unloading port (17) being rotatably arranged between one group of mounting plates (804), and a second rotating shaft (802) located on the other side of the unloading port (17) being rotatably arranged between the other group of mounting plates (804), a plurality of unloading rollers (803) being fixedly arranged on both the first rotating shaft (801) and the second rotating shaft (802), a unloading motor (805) for driving the first rotating shaft (801) to rotate being fixedly arranged on one side of the unloading box (6), and a reverse transmission component being arranged between the first rotating shaft (801) and the second rotating shaft (802).

2. A double-station small transformer automatic welding machine according to claim 1, characterized in that: The reverse transmission assembly comprises a driving gear (806) fixedly arranged at one end of the first rotating shaft (801), and a driven gear (807) meshing with the driving gear (806) fixedly arranged at one end of the second rotating shaft (802).

3. A double-station small transformer automatic welding machine according to claim 2, characterized in that: The front and rear sides of the lifting plate (4) are provided with sliding grooves (11) respectively slidably matched with the material discharge boxes (6), and the insides of the two material discharge boxes (6) are provided with a material pushing mechanism.

4. A double-station small transformer automatic welding machine according to claim 3, characterized in that: The pushing mechanism comprises a pushing cylinder (601) fixedly arranged on one side of a material discharge box (6); a pushing frame (602) sliding inside the material discharge box (6) is fixedly arranged at the output end of the pushing cylinder (601); a plurality of equally spaced partition plates (603) are fixedly arranged on both sides of the pushing frame (602); the bottoms of the plurality of partition plates (603) penetrate through and cooperate with the material discharge port (17); and two through grooves (604) respectively cooperating with the partition plates (603) are provided on the other side of the material discharge box (6).

5. A double-station small transformer automatic welding machine according to claim 4, characterized in that: The driving mechanism (12) comprises a first screw rod (1201) rotatably arranged on one side of the slide groove (11) and a second screw rod (1205) rotatably arranged on the other side of the slide groove (11); threaded sleeves (1207) respectively threadedly sleeved on the first screw rod (1201) and the second screw rod (1205) are fixedly arranged on both sides of the unloading box (6); a second servo motor (1202) for driving the first screw rod (1201) to rotate is fixedly arranged on one side of the lifting plate (4); a main synchronous wheel (1203) is fixedly arranged on one end of the first screw rod (1201); a slave synchronous wheel (1206) is fixedly arranged on one end of the second screw rod (1205); and a synchronous belt (1204) is meshed between the main synchronous wheel (1203) and the slave synchronous wheel (1206).

6. A double-station small transformer automatic welding machine according to claim 1, characterized in that: The internal heat dissipation mechanism (10) comprises a horizontal plate (1001) fixedly arranged on one side of the bottom of the discharge box (6); a vertical pipe (1002) matched with the inner wall of the transformer housing (14) is fixedly arranged on the lower side of the horizontal plate (1001); a plurality of inner air outlet holes (1003) facing the inner wall of the transformer housing (14) are opened on one side of the vertical pipe (1002); and an inner air inlet pipe (1004) is connected to the upper end of the vertical pipe (1002).

7. A double-station small transformer automatic welding machine according to claim 6, characterized in that: The external heat dissipation mechanism (9) comprises a first fixed tube (901) which is lifted and arranged on one side of the heat sink, and a second fixed tube (902) which is lifted and arranged on the other side of the heat sink, one end of each of the first fixed tube (901) and the second fixed tube (902) is connected to an external air inlet pipe (903), the other ends of each of the first fixed tube (901) and the second fixed tube (902) are slidably connected to a sliding tube (906), the sliding tube (906) is positioned with the first fixed tube (901) and the second fixed tube (902) by means of positioning screws (905), one side of each of the first fixed tube (901), the second fixed tube (902) and the sliding tube (906) is provided with a plurality of outgoing air holes (904) facing the heat sink, and the welding gun (18) is arranged at one end of the sliding tube (906).

8. A double-station small transformer automatic welding machine according to claim 7, characterized in that: The lifting mechanism (7) comprises a hanging plate (701) fixedly arranged on one side of the unloading box (6); a guide sleeve (702) is fixedly arranged on the lower side of the hanging plate (701); a guide groove (703) is provided on the inner side of the guide sleeve (702); a lifting screw rod (704) is rotatably arranged on the inner side of the guide groove (703); a first servo motor (705) for driving the lifting screw rod (704) to rotate is fixedly arranged on the upper side of the hanging plate (701); a slider (706) is provided on the outer thread sleeve of the lifting screw rod (704) and is slidably connected to the inner side of the guide groove (703); and one end of each of the first fixed tube (901) and the second fixed tube (902) is fixedly arranged on the slider (706).

9. A double-station small transformer automatic welding machine according to any one of claims 1 to 8, characterized in that: A support groove (15) is provided at the center of the base (1), a heat dissipation port (16) is provided at the center of the support groove (15), the transformer housing (14) is arranged on the support groove (15), the clamping mechanism (13) comprises a fixing plate (1301) fixedly arranged on the upper side of the base (1), a clamping cylinder (1302) is fixedly arranged on one side of the fixing plate (1301), and a clamping plate (1303) cooperating with the transformer housing (14) is fixedly arranged at the output end of the clamping cylinder (1302).

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