Welding machine for manufacturing electric instrument

Abstract

The invention discloses a welding machine for electric instrument manufacturing, and relates to the technical field of welding, the welding machine comprises a material table, a feeding mechanism is arranged at the top of the material table, a gas transmission mechanism is arranged on a fixing clamp, a welding mechanism is arranged on a supporting frame, and a blanking mechanism is arranged at the top of the material table. By arranging the feeding mechanism, the gas conveying mechanism, the welding mechanism and the discharging mechanism, batch automatic feeding of hemispherical workpieces can be achieved before welding, and then the welding machining efficiency is improved; in addition, the outer surfaces of the semispherical workpieces can be comprehensively cleaned through the spray heads, and follow-up welding machining of the two semispherical workpieces is facilitated; during welding, inert gas for cooling can be sprayed to the welding position, so that the welding position is effectively cooled and not prone to deformation, the welding position can be prevented from being oxidized, and the welding effect is improved; and finally, welding slag falling in the welding process can be cleaned away together in the discharging process, manual cleaning is not needed, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of welding, and in particular relates to a welding machine for manufacturing electric instruments and apparatuses. Background Art

[0002] Magnetostrictive level gauge is an electric instrument. A float is installed outside the sensor rod of the magnetostrictive level gauge, and the float can move up and down along the rod with the change of liquid level. Magnetostrictive level gauge is used for industrial measurement and control of liquid level of various liquid tanks such as petroleum, chemical raw material storage, industrial process, biochemistry, medicine, food and beverage, tank area management and underground storage of gas stations, dam water level, reservoir water level monitoring and sewage treatment, etc.

[0003] The existing spherical float is made by manually placing two hemispherical workpieces on a fixture for docking, then cleaning the fixed hemispherical workpiece, and then welding the two cleaned hemispherical workpieces through a welding gun to form a spherical float, and finally removing the welded float manually. However, during welding, the hemispherical workpiece needs to be manually loaded, and batch automatic loading is not possible, which affects the welding process efficiency; in addition, the outer surface of the hemispherical workpiece is an arc surface, which makes it impossible for the existing welding device to fully clean the outer surface of the hemispherical workpiece, which is not conducive to subsequent welding processing; and the welding ends of the two hemispherical workpieces are relatively weak. If the temperature is not effectively reduced during welding, it is easy to cause welding deformation, resulting in reduced welding effect; finally, during the process of discharging, the welding slag dropped during the welding process cannot be cleaned up together, and it needs to be cleaned manually, which increases the labor intensity of the staff. Summary of the invention

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A welding machine for manufacturing electric instruments and apparatuses, comprising a material table, the top of the material table is fixedly connected to a support frame, the inner side of the support frame is fixedly connected to a first driving cylinder, the output end of the first driving cylinder is fixedly connected to a first connecting plate, the first connecting plate is fixedly mounted with a second driving cylinder, the output end of the second driving cylinder is fixedly connected to a second connecting plate, the second connecting plate is fixedly mounted with a first driving motor, the output end of the first driving motor is fixedly connected to a third connecting plate, the third connecting plate is fixedly mounted with a second driving motor, the output end of the second driving motor is fixedly connected to a fixing fixture via an air-electric slip ring, the bottom of the material table is fixedly connected to a supporting leg, a loading mechanism is arranged on the top of the material table, a gas transmission mechanism is arranged on the fixing fixture, a welding mechanism is arranged on the support frame, and a blanking mechanism is arranged on the top of the material table.

[0006] Preferably, the loading mechanism includes a fifth driving cylinder fixedly installed on the top of the material table, the output end of the fifth driving cylinder is fixedly connected to a sliding plate, the top of the sliding plate is fixedly connected to a barrel, the bottom of the material table is fixedly installed with a third driving cylinder, the output end of the third driving cylinder is fixedly connected to a push plate, a connecting groove is provided on the inner side of the material table and the sliding plate, the push plate is slidably connected to the connecting groove, a plurality of stacked hemispherical workpieces are arranged on the inner side of the barrel, and the plurality of stacked hemispherical workpieces are placed on the sliding plate.

[0007] Preferably, the feeding mechanism also includes a support plate fixedly connected to the outer wall of the barrel, a fourth driving cylinder is fixedly installed on the support plate, an output end of the fourth driving cylinder is fixedly connected to a limiting plate, a movable groove is opened on the inner side of the barrel, and the limiting plate is slidably connected to the movable groove.

[0008] Preferably, the feeding mechanism further comprises a first dust shield plate fixedly connected to the outer wall of the limiting plate, and a second dust shield plate is fixedly connected to the outer wall of the sliding plate.

[0009] Preferably, the gas delivery mechanism includes a spiral air tube arranged in the inner cavity of the fixing clamp, one end of the spiral air tube is connected to an annular air tube, the annular air tube is connected to a plurality of nozzles, the plurality of nozzles are distributed in a ring shape, and an air bag is fixedly arranged on the inner side of the fixing clamp.

[0010] Preferably, the gas delivery mechanism also includes a mounting plate fixedly connected to the fixing clamp, the top of the mounting plate is fixedly connected to a storage box, the top of the storage box is provided with a liquid inlet pipe, the liquid inlet pipe is provided with a control valve, and the storage box is connected to the inner cavity of the fixing clamp through a first liquid infusion pipe.

[0011] Preferably, the gas delivery mechanism also includes a driving pump fixedly installed on the top of the storage box, one end of the driving pump is connected to the inner cavity of the fixing clamp through a second infusion tube, and the other end of the driving pump is connected to the storage box through a third infusion tube, and a cooling fan is fixedly installed on the top of the mounting plate.

[0012] Preferably, the welding mechanism comprises a mounting frame fixedly connected to the supporting frame, a sixth driving cylinder is fixedly mounted on the mounting frame, and a welding gun is fixedly connected to an output end of the sixth driving cylinder.

[0013] Preferably, the material dropping mechanism includes a discharge channel fixedly connected to the material platform, a discharge hopper is fixedly connected to the top of the discharge channel, a connecting frame is fixedly connected to the outer wall of the discharge channel, a seventh driving cylinder is fixedly installed on the connecting frame, a baffle plate is fixedly connected to the output end of the seventh driving cylinder, a sliding groove is provided on the inner side of the discharge hopper, and the baffle plate is slidably connected to the sliding groove.

[0014] Preferably, the blanking mechanism further comprises an eighth driving cylinder fixedly connected to the connecting frame, an output end of the eighth driving cylinder is fixedly connected to a wind hood, the wind hood matches the blanking hopper, and an air supply channel is arranged on the top of the wind hood.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention provides a feeding mechanism, a gas transmission mechanism, a welding mechanism and a blanking mechanism, so that hemispherical workpieces can be automatically fed in batches before welding, thereby improving the welding processing efficiency; in addition, the nozzle can completely clean the outer surface of the hemispherical workpiece, which is beneficial to the subsequent welding processing of the two hemispherical workpieces; and during welding, an inert gas for cooling can be sprayed to the welding point, so that the welding point is effectively cooled and not easily deformed, and oxidation of the welding point can be prevented, thereby improving the welding effect; finally, in the process of discharging, the welding slag dropped during the welding process can be cleaned up together, without the need for manual cleaning, thereby reducing the labor intensity of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the local structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the disassembled structure of the feeding mechanism of the present invention;

[0020] Figure 4 It is a schematic diagram of the overall structure of the feeding mechanism of the present invention;

[0021] Figure 5 This is a diagram of the docking state of two hemispherical workpieces of the present invention;

[0022] Figure 6 It is a schematic diagram of the local structure of the gas transmission mechanism of the present invention;

[0023] Figure 7 It is a schematic diagram of the overall structure of the gas transmission mechanism of the present invention.

[0024] Figure 8 It is a schematic diagram of the overall structure of the welding mechanism of the present invention.

[0025] Fig. 9 It is a schematic diagram of the overall structure of the blanking mechanism of the present invention.

[0026] Fig.10 It is a schematic diagram of the local structure of the blanking mechanism of the present invention.

[0027] In the figure: 1, material table; 2, support frame; 3, first driving cylinder; 4, first connecting plate; 5, second driving cylinder; 6, second connecting plate; 7, first driving motor; 8, third connecting plate; 9, second driving motor; 10, gas-electric slip ring; 11, fixing fixture; 12, supporting leg; 13, feeding mechanism; 1301, sliding plate; 1302, barrel; 1303, third driving cylinder; 1304, connecting groove; 1305, push plate; 1306, hemispherical workpiece; 1307, supporting plate; 1308, fourth driving cylinder; 1309, limit plate; 1310, movable groove; 1311, fifth driving cylinder; 1312, first dust shield; 1313, second dust shield; 14, gas transmission mechanism;

[0028] 1401, spiral air tube; 1402, annular air tube; 1403, nozzle; 1404, air bag;

[0029] 1405, mounting plate; 1406, storage box; 1407, liquid inlet pipe; 1408, control valve;

[0030] 1409, first infusion tube; 1410, driving pump; 1411, second infusion tube; 1412, third infusion tube; 1413, cooling fan; 15, welding mechanism; 1501, mounting frame; 1502, sixth driving cylinder; 1503, welding gun; 16, blanking mechanism; 1601, discharge channel; 1602, blanking hopper; 1603, connecting frame; 1604, seventh driving cylinder; 1605, baffle plate; 1606, sliding groove; 1607, eighth driving cylinder; 1608, wind hood; 1609, air channel. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] The following electrical components are all electrically connected to the peripheral PLC controller.

[0033] Reference Figure 1 - Fig.10A welding machine for manufacturing electric instruments and apparatuses comprises a material table 1, a support frame 2 is fixedly connected to the top of the material table 1, a first driving cylinder 3 is fixedly connected to the inner side of the support frame 2, an output end of the first driving cylinder 3 is fixedly connected to a first connecting plate 4, a second driving cylinder 5 is fixedly installed on the first connecting plate 4, an output end of the second driving cylinder 5 is fixedly connected to a second connecting plate 6, a first driving motor 7 is fixedly installed on the second connecting plate 6, a third connecting plate 8 is fixedly connected to the output end of the first driving motor 7, a second driving motor 9 is fixedly installed on the third connecting plate 8, an output end of the second driving motor 9 is fixedly connected to a fixing fixture 11 through an air-electric slip ring 10, a supporting leg 12 is fixedly connected to the bottom of the material table 1, a feeding mechanism 13 is arranged on the top of the material table 1, a gas transmission mechanism 14 is arranged on the fixing fixture 11, a welding mechanism 15 is arranged on the support frame 2, and a blanking mechanism 16 is arranged on the top of the material table 1.

[0034] In the embodiment, the loading mechanism 13 includes a fifth driving cylinder 1311 fixedly installed on the top of the material table 1, the output end of the fifth driving cylinder 1311 is fixedly connected to the sliding plate 1301, the top of the sliding plate 1301 is fixedly connected to the barrel 1302, the bottom of the material table 1 is fixedly installed with a third driving cylinder 1303, the output end of the third driving cylinder 1303 is fixedly connected to a push plate 1305, a connecting groove 1304 is provided on the inner side of the material table 1 and the sliding plate 1301, the push plate 1305 is slidably connected to the connecting groove 1304, a plurality of stacked hemispherical workpieces 1306 are arranged on the inner side of the barrel 1302, and the plurality of stacked hemispherical workpieces 1306 are placed on the sliding plate 1301.

[0035] Specifically, the present invention first stacks the hemispherical workpieces 1306 to be welded together when loading, and then feeds the stacked hemispherical workpieces 1306 into the barrel 1302 from the top of the barrel 1302. After entering the barrel 1302, the stacked hemispherical workpieces 1306 are placed on the sliding plate 1301. Then, the third driving cylinder 1303 fixedly mounted at the bottom of the material table 1 is started, so that the output end of the third driving cylinder 1303 drives the push plate 1305 to move upward. Because multiple stacked hemispherical workpieces 1306 are placed on the sliding plate 1301, the push plate 1305 can drive the hemispherical workpieces 1306 inside the barrel 1302 to be ejected from the barrel 1302. This method does not require manual picking up of the hemispherical workpieces 1306 for loading, and realizes the automatic feeding function of the hemispherical workpieces 1306.

[0036] In addition, in the present invention, when the hemispherical workpieces 1306 stacked inside the barrel 1302 are consumed, the third driving cylinder 1303 drives the push plate 1305 to retract downward and reset to the inside of the material platform 1. Then, the output end of the fifth driving cylinder 1311 on one side drives the sliding plate 1301 to slide, so that the sliding plate 1301 can drive the barrel 1302 with the hemispherical workpieces 1306 consumed to slide out from above the push plate 1305, and then the output end of the fifth driving cylinder 1311 on the other side drives the barrel 1302 with the hemispherical workpieces 1306 stacked inside to move to above the push plate 1305 through the sliding plate 1301. This alternating loading method is convenient for the staff to fill the hemispherical workpieces 1306.

[0037] In the embodiment, the feeding mechanism 13 also includes a support plate 1307 fixedly connected to the outer wall of the barrel 1302, and a fourth driving cylinder 1308 is fixedly installed on the support plate 1307. The output end of the fourth driving cylinder 1308 is fixedly connected to a limiting plate 1309. A movable groove 1310 is opened on the inner side of the barrel 1302, and the limiting plate 1309 is slidably connected to the movable groove 1310.

[0038] Specifically, in the present invention, when a hemispherical workpiece 1306 is pushed out of the barrel 1302 by the push plate 1305 below, the fourth driving cylinder 1308 fixedly installed on the support plate 1307 is started, and the output end of the fourth driving cylinder 1308 drives the limit plate 1309 to slide in the movable groove 1310, so that the limit plate 1309 can clamp and fix the next hemispherical workpiece 1306 from both sides, making it convenient to separate and take out the stacked hemispherical workpieces 1306 one by one.

[0039] In the embodiment, the gas delivery mechanism 14 includes a spiral air tube 1401 arranged in the inner cavity of the fixing clamp 11, one end of the spiral air tube 1401 is connected to an annular air tube 1402, and the annular air tube 1402 is connected to multiple nozzles 1403, and the multiple nozzles 1403 are distributed in a ring shape. An air bag 1404 is fixedly arranged on the inner side of the fixing clamp 11.

[0040] Specifically, in the present invention, when a hemispherical workpiece 1306 is pushed out of the barrel 1302 by the push plate 1305 below and the next hemispherical workpiece 1306 is clamped and fixed from both sides by the limit plate 1309, the output shaft of the second driving cylinder 5 will drive the parts connected to the second connecting plate 6 to move downward, so that the fixing fixture 11 is located above the hemispherical workpiece 1306. Then the external air pump will supply gas into the spiral air pipe 1401, so that the gas will enter the annular air pipe 1402 through the spiral air pipe 1401, and finally spray gas to the hemispherical workpiece 1306 below through multiple nozzles 1403. At the same time, the second driving motor 9 can drive the multiple nozzles 1403 on the fixing fixture 11 to rotate, and the first driving cylinder 3 can drive the multiple nozzles 1403 on the fixing fixture 11 to move, so that the dust and impurities on the hemispherical workpiece 1306 can be completely cleaned, and the hemispherical workpiece 1306 can be effectively cleaned before welding.

[0041] In addition, after the dust and impurities on the hemispherical workpiece 1306 are completely cleaned, the second driving cylinder 5 will drive the fixing fixture 11 to continue to move downward and get stuck on the hemispherical workpiece 1306, and then the external air pump will inflate the airbag 1404, and the airbag 1404 can fill the gap between the hemispherical workpiece 1306 and the fixing fixture 11, so that the hemispherical workpiece 1306 is firmly fixed in the fixing fixture 11. Then the second driving cylinder 5 will drive the hemispherical workpiece 1306 inside the fixing fixture 11 to move upward and separate from the next hemispherical workpiece 1306 below. Then the first driving motor 7 drives the hemispherical workpiece 1306 to rotate to the horizontal direction and the two hemispherical workpieces 1306 can be docked together under the action of the first driving cylinder 3.

[0042] In the embodiment, the feeding mechanism 13 further includes a first dust shield plate 1312 fixedly connected to the outer wall of the limiting plate 1309 , and a second dust shield plate 1313 fixedly connected to the outer wall of the sliding plate 1301 .

[0043] Specifically, when the present invention cleans the hemispherical workpiece 1306 through multiple nozzles 1403, because the first dust shield plate 1312 is fixedly connected to the limit plate 1309 and is located above the output shaft of the fourth driving cylinder 1308, and the second dust shield plate 1313 is fixedly connected to the sliding plate 1301 and is located above the output shaft of the fifth driving cylinder 1311, the first dust shield plate 1312 and the second dust shield plate 1313 have a dust shielding and protective effect on the output shafts of the fourth driving cylinder 1308 and the fifth driving cylinder 1311, thereby preventing dust from above from falling directly onto the cylinder output shaft and affecting the service life of the cylinder.

[0044] In the embodiment, the welding mechanism 15 includes a mounting frame 1501 fixedly connected to the support frame 2 , a sixth driving cylinder 1502 is fixedly mounted on the mounting frame 1501 , and a welding gun 1503 is fixedly connected to the output end of the sixth driving cylinder 1502 .

[0045] Specifically, in the present invention, after the two hemispherical workpieces 1306 are butt-jointed together, the sixth driving cylinder 1502 on the mounting frame 1501 is started, so that the output end of the sixth driving cylinder 1502 drives the welding gun 1503 to approach the welding point of the two hemispherical workpieces 1306, and then the two second driving motors 9 rotate synchronously and drive the two hemispherical workpieces 1306 to rotate, so that the welding gun 1503 can weld the two hemispherical workpieces 1306 together and obtain a float, thereby realizing the welding processing function.

[0046] In the embodiment, the gas delivery mechanism 14 also includes a mounting plate 1405 fixedly connected to the fixing fixture 11, a storage box 1406 is fixedly connected to the top of the mounting plate 1405, a liquid inlet pipe 1407 is arranged on the top of the storage box 1406, a control valve 1408 is arranged on the liquid inlet pipe 1407, and the storage box 1406 is connected to the inner cavity of the fixing fixture 11 through a first liquid infusion pipe 1409.

[0047] Specifically, when the present invention performs welding processing on the two hemispherical workpieces 1306, since the storage box 1406 stores coolant inside, the coolant inside the storage box 1406 can be transported to the inner cavity of the fixing fixture 11 through the first liquid delivery tube 1409. In addition, the external air pump will transport inert gas to the inside of the spiral air pipe 1401. When the inert gas is transported in the spiral air pipe 1401, the coolant in the inner cavity of the fixing fixture 11 has a cooling effect on the inert gas, so that the inert gas is transported to the annular air pipe 1402 after being cooled in the spiral air pipe 1401 and finally sprayed to the welding point of the two hemispherical workpieces 1306 through the nozzle 1403. The cooled inert gas can prevent oxidation of the welding point and also has a cooling effect on the welding point, which can effectively improve the welding effect.

[0048] In the embodiment, the gas delivery mechanism 14 also includes a driving pump 1410 fixedly installed on the top of the storage box 1406, one end of the driving pump 1410 is connected to the inner cavity of the fixing clamp 11 through a second infusion tube 1411, and the other end of the driving pump 1410 is connected to the storage box 1406 through a third infusion tube 1412, and a cooling fan 1413 is fixedly installed on the top of the mounting plate 1405.

[0049] Specifically, when the present invention cools down the inert gas in the spiral air pipe 1401, the driving pump 1410 can transport the coolant in the inner cavity of the fixing clamp 11 to the storage box 1406 through the second infusion pipe 1411 and the third infusion pipe 1412. The cooling fan 1413 has a heat dissipation effect on the coolant in the storage box 1406, so that the coolant can circulate and cool down, thereby improving the cooling effect on the inert gas in the spiral air pipe 1401.

[0050] In the embodiment, the material discharge mechanism 16 includes a discharge channel 1601 fixedly connected to the material platform 1, a discharge hopper 1602 is fixedly connected to the top of the discharge channel 1601, a connecting frame 1603 is fixedly connected to the outer wall of the discharge channel 1601, a seventh driving cylinder 1604 is fixedly installed on the connecting frame 1603, a material baffle plate 1605 is fixedly connected to the output end of the seventh driving cylinder 1604, a sliding groove 1606 is opened on the inner side of the discharge hopper 1602, and the material baffle plate 1605 is slidably connected to the sliding groove 1606.

[0051] Specifically, when the present invention performs welding processing on two hemispherical workpieces 1306, the seventh driving cylinder 1604 will drive the baffle plate 1605 to slide in the sliding groove 1606 and insert into the drop hopper 1602, and the output end of the eighth driving cylinder 1607 will drive the wind hood 1608 to separate from the top of the drop hopper 1602, so that the welding slag generated during the welding process will fall onto the baffle plate 1605.

[0052] In the embodiment, the blanking mechanism 16 also includes an eighth driving cylinder 1607 fixedly connected to the connecting frame 1603, and the output end of the eighth driving cylinder 1607 is fixedly connected to a wind hood 1608, the wind hood 1608 matches the blanking hopper 1602, and an air supply channel 1609 is arranged on the top of the wind hood 1608.

[0053] Specifically, in the present invention, after the two hemispherical workpieces 1306 are welded into a float, the eighth driving cylinder 1607 will drive the wind hood 1608 to cover the top of the drop hopper 1602. At this time, the external vacuum pump will extract the welding slag on the baffle plate 1605 through the wind hood 1608 and the air supply channel 1609, so as to facilitate the cleaning of the welding slag generated during the welding process.

[0054] In addition, in the present invention, when the welding slag is cleaned, the output end of the eighth driving cylinder 1607 drives the wind hood 1608 to separate from the top of the drop hopper 1602, and the output end of the seventh driving cylinder 1604 drives the baffle plate 1605 to move out from the inside of the drop hopper 1602. Then, the first driving cylinder 3 drives the docked fixing fixture 11 to separate and the gas in the air bag 1404 inside the fixing fixture 11 is discharged, so that the welded float will be moved out of the fixing fixture 11 and fall into the drop hopper 1602. Because the drop hopper 1602 is connected to the discharge channel 1601, the welded float can be discharged through the discharge channel 1601, which is convenient for collecting the welded float.

[0055] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A welding machine for electric instrument manufacturing, characterized in that: The invention comprises a material platform (1), the top of the material platform (1) is fixedly connected to a support frame (2), the inner side of the support frame (2) is fixedly connected to a first driving cylinder (3), the output end of the first driving cylinder (3) is fixedly connected to a first connecting plate (4), the first connecting plate (4) is fixedly mounted with a second driving cylinder (5), the output end of the second driving cylinder (5) is fixedly connected to a second connecting plate (6), the second connecting plate (6) is fixedly mounted with a first driving motor (7), the output end of the first driving motor (7) is fixedly connected to A third connecting plate (8) is provided, a second drive motor (9) is fixedly mounted on the third connecting plate (8), an output end of the second drive motor (9) is fixedly connected to a fixing fixture (11) via a gas-electric slip ring (10), a support leg (12) is fixedly connected to the bottom of the material platform (1), a loading mechanism (13) is provided at the top of the material platform (1), a gas transmission mechanism (14) is provided on the fixing fixture (11), a welding mechanism (15) is provided on the support frame (2), and a blanking mechanism (16) is provided at the top of the material platform (1).

2. The welding machine for electric instrument manufacturing according to claim 1, characterized in that: The feeding mechanism (13) comprises a fifth driving cylinder (1311) fixedly mounted on the top of the material platform (1); the output end of the fifth driving cylinder (1311) is fixedly connected to a sliding plate (1301); the top of the sliding plate (1301) is fixedly connected to a barrel (1302); a third driving cylinder (1303) is fixedly mounted on the bottom of the material platform (1); the output end of the third driving cylinder (1303) is fixedly connected to a push plate (1305); a connecting groove (1304) is provided on the inner side of the material platform (1) and the sliding plate (1301); the push plate (1305) is slidably connected to the connecting groove (1304); a plurality of stacked hemispherical workpieces (1306) are arranged on the inner side of the barrel (1302); and the plurality of stacked hemispherical workpieces (1306) are placed on the sliding plate (1301).

3. The welding machine for electric instrument manufacturing according to claim 2, characterized in that: The feeding mechanism (13) further comprises a support plate (1307) fixedly connected to the outer wall of the barrel (1302), a fourth driving cylinder (1308) being fixedly mounted on the support plate (1307), an output end of the fourth driving cylinder (1308) being fixedly connected to a limiting plate (1309), a movable groove (1310) being provided on the inner side of the barrel (1302), and the limiting plate (1309) being slidably connected to the movable groove (1310).

4. The welding machine for electric instrument manufacturing according to claim 3, characterized in that: The feeding mechanism (13) further comprises a first dust shield plate (1312) fixedly connected to the outer wall of the limiting plate (1309), and a second dust shield plate (1313) is fixedly connected to the outer wall of the sliding plate (1301).

5. The welding machine for electric instrument manufacturing according to claim 4, characterized in that: The gas delivery mechanism (14) comprises a spiral air tube (1401) arranged in the inner cavity of the fixing fixture (11); one end of the spiral air tube (1401) is connected to an annular air tube (1402); the annular air tube (1402) is connected to a plurality of nozzles (1403); the plurality of nozzles (1403) are distributed in an annular shape; and an air bag (1404) is fixedly arranged on the inner side of the fixing fixture (11).

6. The welding machine for electric instrument manufacturing according to claim 1, characterized in that: The gas delivery mechanism (14) further comprises a mounting plate (1405) fixedly connected to the fixing fixture (11); a storage box (1406) is fixedly connected to the top of the mounting plate (1405); a liquid inlet pipe (1407) is arranged on the top of the storage box (1406); a control valve (1408) is arranged on the liquid inlet pipe (1407); and the storage box (1406) is connected to the inner cavity of the fixing fixture (11) via a first liquid infusion pipe (1409).

7. A welding machine for manufacturing electric instruments and equipment according to claim 6, characterized in that: The gas delivery mechanism (14) further comprises a driving pump (1410) fixedly mounted on the top of the storage box (1406); one end of the driving pump (1410) is connected to the inner cavity of the fixing fixture (11) via a second infusion tube (1411); the other end of the driving pump (1410) is connected to the storage box (1406) via a third infusion tube (1412); and a cooling fan (1413) is fixedly mounted on the top of the mounting plate (1405).

8. The welding machine for electric instrument manufacturing according to claim 1, characterized in that: The welding mechanism (15) comprises a mounting frame (1501) fixedly connected to the support frame (2), a sixth driving cylinder (1502) being fixedly mounted on the mounting frame (1501), and a welding gun (1503) being fixedly connected to the output end of the sixth driving cylinder (1502).

9. The welding machine for electric instrument manufacturing according to claim 1, characterized in that: The material discharge mechanism (16) comprises a discharge channel (1601) fixedly connected to the material platform (1); a discharge hopper (1602) is fixedly connected to the top of the discharge channel (1601); a connecting frame (1603) is fixedly connected to the outer wall of the discharge channel (1601); a seventh driving cylinder (1604) is fixedly mounted on the connecting frame (1603); a baffle plate (1605) is fixedly connected to the output end of the seventh driving cylinder (1604); a sliding groove (1606) is provided on the inner side of the discharge hopper (1602); and the baffle plate (1605) is slidably connected to the sliding groove (1606).

10. The welding machine for electric instrument manufacturing according to claim 9, characterized in that: The material dropping mechanism (16) further comprises an eighth driving cylinder (1607) fixedly connected to the connecting frame (1603); an output end of the eighth driving cylinder (1607) is fixedly connected to a wind hood (1608); the wind hood (1608) matches the material dropping hopper (1602); and a gas transmission channel (1609) is arranged on the top of the wind hood (1608).

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