Welding tool for manufacturing mechanical and electrical equipment

Abstract

The invention relates to the field of mechanical electrical equipment manufacturing, in particular to a welding tool for mechanical electrical equipment manufacturing, which comprises a workbench and a fixing mechanism arranged on the workbench, an electrical box is arranged on the workbench, and the fixing mechanism clamps and fixes the electrical box. A flue gas recovery unit and a welding shielding unit are arranged at the position, corresponding to a longitudinal splicing seam of the electrical box, of the workbench, a through hole is formed in the workbench, the flue gas recovery unit is arranged in the through hole in a lifting mode, and the welding shielding unit is arranged on the flue gas recovery unit. A welding opening corresponding to a longitudinal splicing seam of the electrical box is formed in the welding shielding unit, and the opening degree of the welding opening can be adjusted. The flue gas recovery unit is arranged on the workbench, the draught fan is started in the welding process, and negative pressure is formed in the flow channel of the recovery part and near the air holes, so that flue gas generated by welding can be absorbed into the flow channel and finally discharged into the collection box to be recovered, and the welding flue gas is prevented from polluting the environment or being absorbed by welding workers.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical and electrical equipment manufacturing, and in particular to a welding tool for mechanical and electrical equipment manufacturing. BACKGROUND

[0002] The welding tool is an industrial equipment used to assist the welding process, and its main functions include part positioning, pressing and fixing, which can significantly improve the welding quality and production efficiency. The electrical box is a key equipment in mechanical and electrical equipment, and its production and manufacturing process includes welding of the longitudinal joint. The welding of the longitudinal joint of the electrical box is a key process to ensure the structural strength, sealing and protection performance of the electrical box.

[0003] In the related art, the welding tool for the longitudinal joint of the electrical box generally consists of a workbench and a fixing mechanism. After the electrical box is pre-positioned, it is transferred to the workbench, and the fixing assembly can press and fix each side plate of the electrical box. Then, the joint is welded by a welding robot or a welder.

[0004] The related art has the problem that in the process of welding the longitudinal joint of the electrical box, the welding gun will cause spatter and smoke overflow when it contacts the joint. The welding tool in the related art lacks protective measures for the above problems, and there is a certain safety hazard in the actual manufacturing process. SUMMARY

[0005] In order to protect against spatter and smoke overflow during welding, the present application provides a welding tool for mechanical and electrical equipment manufacturing.

[0006] The welding tool for mechanical and electrical equipment manufacturing provided by the present application adopts the following technical solution:

[0007] A welding tool for mechanical and electrical equipment manufacturing is used to fix the welding of the longitudinal joint of the electrical box, which includes a workbench and a fixing mechanism arranged on the workbench. The electrical box is arranged on the workbench and clamped and fixed by the fixing mechanism. The workbench is provided with a smoke recovery unit and a welding shielding unit corresponding to the position of the longitudinal joint of the electrical box. A through hole is formed on the workbench. The smoke recovery unit is arranged in the through hole in a lifting manner. The welding shielding unit is arranged on the smoke recovery unit. The welding shielding unit forms a welding port corresponding to the longitudinal joint of the electrical box. The opening degree of the welding port can be adjusted.

[0008] Optionally, the fixing mechanism includes a first fixing assembly and a second fixing assembly arranged in cooperation. A gantry is arranged on the workbench. The first fixing assembly and the second fixing assembly are both mounted on the gantry. The first fixing assembly is used to fix two opposite side plates of the electrical box, and the second fixing assembly is used to fix the other two opposite side plates of the electrical box.

[0009] Optionally, the first fixing component includes a first driver mounted on the gantry and a clamp connected to the first driver. Multiple first drivers are provided, and the multiple first drivers are divided into two groups. One group of first drivers drives the clamp to abut against the outer side wall of the electrical box, and the other group of first drivers drives the clamp to abut against the inner side wall of the electrical box.

[0010] Optionally, the second fixing component includes a second driver mounted on the gantry and a pressure plate connected to the second driver. The pressure plate is parallel to the side wall of the electrical box, and the second driver drives the pressure plate to abut against the side wall of the electrical box.

[0011] Optionally, the fixing mechanism further includes a third fixing component mounted on the gantry. The third fixing component includes a third driver and a lowering rod. The lowering rod corresponds to the upper end face of each side plate of the electrical box. The third driver is connected to the lowering rod, driving the lowering rod to abut against the upper end face of each side plate of the electrical box.

[0012] Optionally, the gantry includes a crossbeam and a longitudinal beam, a first electric rail is laid on the workbench, the longitudinal beam is installed on the drive end of the first electric rail, the second fixing component is installed on the side facing the electrical box, the crossbeam is installed on the upper end of the longitudinal beam, a second electric rail is laid on the crossbeam, and the first fixing component is installed on the drive end of the second electric rail.

[0013] Optionally, the flue gas recovery unit includes a recovery component, a collection box, and a fan. The collection box is installed in a through hole, the recovery component is installed on the collection box and extends along the longitudinal splice seam of the electrical box, a flow channel is formed inside the recovery component, the flow channel connects to the inside of the collection box, the fan is installed inside the collection box and its exhaust port is connected to the flow channel, and air holes are also provided on the surface of the recovery component, the air holes are connected to the flow channel.

[0014] Optionally, the welding shielding unit includes two symmetrically arranged shielding plates, which are symmetrically distributed along the longitudinal splice seam of the electrical box, forming a welding joint between the two shielding plates.

[0015] Optionally, the two baffles are rotatably mounted on the flue gas recovery unit at the end closest to the electrical box. An adjustment assembly is provided inside the flue gas recovery unit. The adjustment assembly has two drive ends, and the ends of the two baffles furthest from the electrical box are respectively connected to the two drive ends.

[0016] Optionally, the adjustment assembly includes a transmission component, a gear, and a fourth driver. There are two transmission components, one end of which is provided with meshing teeth. The other end of each transmission component is connected to two baffles. The gear meshes with the teeth on one of the transmission components. The fourth driver is connected to the gear.

[0017] In summary, this application includes at least one of the following beneficial technical effects:

[0018] 1. By setting up a fume recovery unit on the workbench and starting the fan during the welding process, a negative pressure is formed in the flow channel and near the air hole of the recovery part, which can absorb the welding fume into the flow channel and finally discharge it into the collection box for recovery. This avoids welding fume pollution of the environment or absorption by welding workers. At the same time, it can also absorb the heat generated during welding and accelerate the heat dissipation of the weld seam.

[0019] 2. By setting a welding shielding unit on the worktable, the welding work is carried out in the welding port formed between two shielding plates. Most of the welding slag produced during welding is blocked by the shielding plates to prevent spatter. The opening degree of the welding port can be adjusted by adjusting the settings of the components to avoid the welding gun from working normally due to the welding port being too small, or the welding port from being too large to block the spatter. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a partial cross-sectional structure in front view of an embodiment of this application.

[0021] Figure 2 This is a side view cross-sectional structural diagram of an embodiment of this application.

[0022] Figure 3 This is a top view of an embodiment of the present application.

[0023] Figure 4 This is a top cross-sectional view of the collection box in an embodiment of this application.

[0024] Figure 5 yes Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0025] Reference numerals: 1. Workbench; 2. Flue gas recovery unit; 21. Recovery component; 22. Collection box; 23. Fan; 3. Welding shielding unit; 31. Shielding plate; 32. Adjustment component; 321. Transmission component; 322. Gear; 323. Fourth actuator; 4. First fixing component; 41. First actuator; 42. Clamping plate; 5. Second fixing component; 51. Second actuator; 52. Pressure plate; 6. Gantry frame; 61. Crossbeam; 62. Longitudinal beam; 7. Third fixing component; 71. Third actuator; 72. Downward pressure rod; 8. First electric guide rail; 9. Second electric guide rail. Detailed Implementation

[0026] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0027] This application discloses a welding fixture for manufacturing mechanical and electrical equipment. (Refer to...) Figure 1 A welding fixture for manufacturing mechanical and electrical equipment is used for fixing the longitudinal splice seam of an electrical box during welding. The welding fixture includes a workbench 1 and a fixing mechanism. The workbench 1 is used to support the electrical box plate and the fixing mechanism, providing the same reference surface. The workbench 1 is made of Q235 steel plate with sandblasting anti-rust treatment. The fixing mechanism is used to clamp and fix the electrical box set on the workbench 1. A polyurethane pad can be installed at the contact point between the fixing mechanism and the electrical box plate to avoid the fixing mechanism damaging the surface of the plate.

[0028] Through holes are provided on the workbench 1 at the positions of each longitudinal splice seam of the electrical box. A flue gas recovery unit 2 is installed in the through holes in a height-adjustable manner. During the welding process, the flue gas recovery unit 2 can absorb the flue gas generated at the welding point to prevent it from overflowing. At the same time, it can also absorb the heat energy generated during welding and accelerate the heat dissipation of the weld seam.

[0029] Specifically, the flue gas recovery unit 2 includes a collection box 22 installed in a through hole. The collection box 22 has a hollow structure, and the absorbed flue gas is finally collected in the collection box 22. To facilitate the treatment of the absorbed flue gas, water can be added to the collection box 22. A recovery component 21 is installed on the collection box 22. The extension direction of the recovery component 21 is parallel to the longitudinal splice seam of the electrical box. A flow channel is formed inside the recovery component 21. The collection box 22 has a through hole corresponding to the position of the recovery component 21. The through hole connects the flow channel to the inside of the collection box 22. A vent is also provided on the surface of the recovery component 21. The vent connects to the flow channel, allowing the flue gas to enter the collection box 22 through the vent and the flow channel. Preferably, the side of the recovery component 21 with the vent faces the longitudinal splice seam of the electrical box to facilitate the recovery of flue gas. The flue gas recovery unit 2 also includes a fan 23 installed in the collection box 22. The exhaust port of the fan 23 is connected to the flow channel. During the welding process, the fan 23 is started to form a negative pressure around the flow channel and the air hole so as to absorb the flue gas.

[0030] In addition, a lifting assembly for raising and lowering the flue gas recovery unit 2 can be installed inside the through hole, so that the flue gas recovery unit 2 can be hidden under the worktable 1 when welding work is not being performed. The specific structure and arrangement of the lifting assembly adopt existing technology and will not be described in detail here.

[0031] Reference Figure 1 and Figure 3A welding shielding unit 3 is also provided on the flue gas recovery unit 2. The welding shielding unit 3 forms a welding port corresponding to the longitudinal welding seam of the electrical box. The welding torch can be inserted into the welding port to perform welding. The opening degree of the welding port can be adjusted as needed.

[0032] Specifically, the collection box 22 of the flue gas recovery unit 2 is provided with two relatively distributed recovery components 21. The side of the two recovery components 21 with air holes faces the weld seam. The aforementioned welding shielding unit 3 includes shielding plates 31 that are rotatably installed on the two recovery components 21 respectively. The weld joint is formed between the two shielding plates 31. An adjustment component 32 is provided in the collection box 22. The adjustment component 32 has two driving ends, which are respectively connected to the two shielding plates 31. The adjustment component 32 can adjust the two shielding plates 31 to rotate towards or away from each other, thereby realizing the adjustment of the opening degree of the weld joint.

[0033] Furthermore, the adjustment assembly 32 includes two transmission members 321 rotatably mounted within the collection box 22. One end of each transmission member 321 is annular and has meshing teeth (not shown in the figures) on its surface. The other ends of each transmission member 321 extend radially and have grooves formed on the surface of the collection box 22. The lower ends of two baffle plates 31 extend into the grooves and are connected to the two transmission members 321 respectively. The adjustment assembly 32 also includes a gear 322 meshing with the toothed end of one of the transmission members 321, and a fourth driver 323 that drives the gear 322 to rotate. With the above structure, when the fourth driver 323 starts and drives the gear 322 to rotate, the two transmission members 321 rotate synchronously in opposite directions, thereby driving the two baffle plates 31 to rotate towards or away from each other, so as to adjust the opening degree of the weld joint. Preferably, the fourth driver 323 is a reversible motor.

[0034] Reference Figure 3 Two first electrical rails 8 are laid on the workbench 1, symmetrically distributed on both sides of the electrical box to be welded. Two gantry frames 6 are installed between the two first electrical rails 8, and the aforementioned fixing mechanism is set on the two gantry frames 6. Specifically, the fixing mechanism includes a first fixing component 4, a second fixing component 5, and a third fixing component 7. The first fixing component 4 is used to clamp and fix two opposite side plates of the electrical box, the second fixing component 5 is used to clamp and fix the other two side plates of the electrical box, and the third fixing component 7 is used to apply clamping force to the upper end face of the four side plates of the electrical box.

[0035] Furthermore, the gantry frame 6 includes longitudinal beams 62 and transverse beams 61. The longitudinal beams 62 are mounted on the drive end of the first electrical guide rail 8 and extend upwards. The second fixing component 5 is mounted on the longitudinal beams 62 of both gantry frames 6. The transverse beam 61 is mounted on the upper end of the longitudinal beams 62, and a second electrical guide rail 9 is mounted on the transverse beam 61. The first fixing component 4 is mounted on the drive end of the second electrical guide rail 9. It is understood that the first electrical guide rail 8 should be parallel to the width direction of the electrical box to be welded on the workbench 1, and the second electrical guide rail 9 should be parallel to the length direction. With this structure, the positions of the first fixing component 4 and the second fixing component 5 can be easily adjusted.

[0036] In some preferred embodiments of this application, the second electrical rails 9 on the two gantry frames 6 each have two drive ends. The first fixing component 4 includes eight first drivers 41, which are arranged in pairs on the four drive ends. The drive ends of the two first drivers 41 in the same group face the outer and inner sides of the electrical box, respectively. A clamping plate 42 is connected to the drive end of the first driver 41. The clamping plate 42 can be pressed against or moved away from the side wall of the electrical box under the drive of the first driver 41. With the above structure, the clamping plate 42 connected to the drive ends of the two first drivers 41 in the same group can correspond to the inner and outer side walls of the electrical box, respectively. Before welding, the eight first drivers 41 move synchronously, driving each clamping plate 42 to press against the outer or inner side of the electrical box to achieve clamping and fixing. Preferably, the first driver 41 adopts a rotary drive component. The rotary drive component is used to drive the clamping plate 42 to rotate in the vertical plane to facilitate the removal and placement of the electrical box. The specific setting of the rotary drive component is common knowledge and is not specifically limited here.

[0037] The second fixing assembly 5 includes four second actuators 51 and a pressure plate 52 mounted on the driving end of each second actuator 51. The second actuators 51 are evenly distributed on the longitudinal beams 62 of the two gantry frames 6. The pressure plate 52 is parallel to the side wall of the electrical box. The second actuators 51 can drive the pressure plate 52 to move closer to or further away from the electrical box in the horizontal direction. Preferably, the second actuators 51 are telescopic cylinders.

[0038] The third fixing assembly 7 includes four third actuators 71 and a pressing rod 72 mounted on the driving end of each third actuator 71. Each pressing rod 72 is positioned above the electrical box and corresponds to the end face of each side plate of the electrical box. The third actuators 71 can drive the pressing rods 72 to move closer to or further away from the electrical box in the vertical direction. Preferably, the third actuators 71 are telescopic cylinders.

[0039] With the above structure, after the electrical box is placed in the preset position on the workbench 1, each of the first drivers 41 is started synchronously to clamp and fix two of the oppositely distributed side plates of the electrical box. Then, the second driver 51 and the third driver 71 are started synchronously, and the pressure plate 52 clamps and fixes the other two oppositely distributed side plates of the electrical box. The downward pressure rod 72 applies a downward pressing force to the upper end face of each side plate of the electrical box, thereby fixing the electrical box on the workbench 1.

[0040] Afterwards, the welding torch is brought close to each longitudinal joint by a welding robot or welding operator to prepare for welding. The operator can adjust the opening and closing angle of the weld joint to a suitable degree by controlling the rotation of the two baffles 31 via the adjusting component 32, according to the actual situation. At this point, welding begins, and the fan 23 starts simultaneously to absorb the welding fumes into the collection box 22. After welding is completed, the welding torch is withdrawn, and each clamping plate 42, pressure plate 52, and lowering rod 72 moves away from the electrical box to its initial position. The operator then removes the electrical box, thus completing one welding operation.

[0041] This application embodiment provides a welding fixture for manufacturing mechanical and electrical equipment. By setting a fume recovery unit 2 on the workbench 1, a fan 23 is started during the welding process to form a negative pressure in the flow channel and near the air hole of the recovery part 21, thereby absorbing the welding fumes into the flow channel and finally discharging them into the collection box 22 for recovery. This avoids the welding fumes from polluting the environment or being absorbed by the welding workers. At the same time, it can also absorb the heat energy generated during welding and accelerate the heat dissipation of the weld seam.

[0042] By setting a welding shielding unit 3 on the workbench 1, the welding work is carried out in the welding port formed between two shielding plates 31. Most of the welding slag generated during welding is shielded by the shielding plates 31 to prevent spatter. The opening degree of the welding port can be adjusted by adjusting the setting of the component 32 to avoid affecting the normal operation of the welding gun due to the welding port being too small, or failing to block the spatter due to the welding port being too large.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A welding fixture for manufacturing mechanical and electrical equipment, used for fixing the longitudinal splice seam of an electrical box during welding, comprising a workbench (1) and a fixing mechanism disposed on the workbench (1), wherein the electrical box is disposed on the workbench (1), and the fixing mechanism clamps and fixes it, characterized in that: The workbench (1) is provided with a flue gas recovery unit (2) and a welding shielding unit (3) corresponding to the longitudinal splice seam of the electrical box. A through hole is provided on the workbench (1). The flue gas recovery unit (2) is installed in the through hole in a height-adjustable manner. The welding shielding unit (3) is provided on the flue gas recovery unit (2). The welding shielding unit (3) forms a welding joint corresponding to the longitudinal splice seam of the electrical box. The opening degree of the welding joint is adjustable.

2. The welding fixture for manufacturing mechanical and electrical equipment according to claim 1, characterized in that: The fixing mechanism includes a first fixing component (4) and a second fixing component (5) that are configured to cooperate. A gantry frame (6) is provided on the workbench (1). The first fixing component (4) and the second fixing component (5) are both installed on the gantry frame (6). The first fixing component (4) is used to fix two opposite side plates of the electrical box, and the second fixing component (5) is used to fix the other two opposite side plates of the electrical box.

3. The welding fixture for manufacturing mechanical and electrical equipment according to claim 2, characterized in that: The first fixing component (4) includes a first driver (41) mounted on the gantry (6) and a clamp (42) connected to the first driver (41). There are multiple first drivers (41), which are divided into two groups. One group of first drivers (41) drives the clamp (42) to abut against the outer wall of the electrical box, and the other group of first drivers (41) drives the clamp (42) to abut against the inner wall of the electrical box.

4. The welding fixture for manufacturing mechanical and electrical equipment according to claim 2, characterized in that: The second fixing component (5) includes a second driver (51) mounted on the gantry (6) and a pressure plate (52) connected to the second driver (51). The pressure plate (52) is parallel to the side wall of the electrical box, and the second driver (51) drives the pressure plate (52) to abut against the side wall of the electrical box.

5. The welding fixture for manufacturing mechanical and electrical equipment according to claim 1, characterized in that: The fixing mechanism also includes a third fixing component (7) set on the gantry (6). The third fixing component (7) includes a third driver (71) and a lowering rod (72). The lowering rod (72) corresponds to the upper end face of each side plate of the electrical box. The third driver (71) is connected to the lowering rod (72) and drives the lowering rod (72) to abut against the upper end face of each side plate of the electrical box.

6. The welding fixture for manufacturing mechanical and electrical equipment according to any one of claims 2-4, characterized in that: The gantry (6) includes a crossbeam (61) and a longitudinal beam (62). A first electric rail (8) is laid on the workbench (1). The longitudinal beam (62) is installed at the drive end of the first electric rail (8). The second fixing component (5) is installed on the side facing the electrical box. The crossbeam (61) is installed at the upper end of the longitudinal beam (62). A second electric rail (9) is laid on the crossbeam (61). The first fixing component (4) is installed at the drive end of the second electric rail (9).

7. The welding fixture for manufacturing mechanical and electrical equipment according to claim 1, characterized in that: The flue gas recovery unit (2) includes a recovery component (21), a collection box (22) and a fan (23). The collection box (22) is installed in the through hole. The recovery component (21) is installed on the collection box (22) and extends along the longitudinal splice seam of the electrical box. A flow channel is formed inside the recovery component (21) and the flow channel connects to the inside of the collection box (22). The fan (23) is installed inside the collection box (22) and the exhaust port is connected to the flow channel. A vent is also provided on the surface of the recovery component (21) and the vent is connected to the flow channel.

8. The welding fixture for manufacturing mechanical and electrical equipment according to claim 1, characterized in that: The welding shielding unit (3) includes two shielding plates (31) arranged symmetrically. The two shielding plates (31) are symmetrically distributed along the longitudinal splice seam of the electrical box, forming a welding joint between the two shielding plates (31).

9. The welding fixture for manufacturing mechanical and electrical equipment according to claim 8, characterized in that: The two baffles (31) are rotatably mounted on the flue gas recovery unit (2) at the end closest to the electrical box. An adjustment component (32) is provided in the flue gas recovery unit (2). The adjustment component (32) has two drive ends. The ends of the two baffles (31) furthest from the electrical box are respectively connected to the two drive ends.

10. The welding fixture for manufacturing mechanical and electrical equipment according to claim 9, characterized in that: The adjustment assembly (32) includes a transmission component (321), a gear (322), and a fourth driver (323). There are two transmission components (321), one end of each transmission component (321) is provided with meshing teeth, and the other end of each transmission component (321) is connected to two baffles (31). The gear (322) meshes with the teeth on one of the transmission components (321), and the fourth driver (323) is connected to the gear (322).

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