Sheet metal part welding machining device

Abstract

The invention belongs to the technical field of sheet metal welding processing, and relates to a sheet metal part welding processing device which comprises a processing table, electric push rods, a mounting plate, a mounting frame, a welding gun and a fixing mechanism, the electric push rods are mounted on the two sides of the processing table, the mounting plate is connected between telescopic rods of the two electric push rods, and the mounting frame is slidably connected to the mounting plate; a welding gun is mounted on the mounting frame, and a fixing mechanism is arranged between the machining table and the mounting plate. When a sheet metal part is fixed, the multiple upper fixing rods and the multiple lower fixing rods make contact with multiple points of the sheet metal part so that the sheet metal part can be fixed, fixing treatment can be conveniently carried out according to complex geometrical shapes, it is guaranteed that alignment between the sheet metal parts is accurate, and therefore the welding precision and quality are guaranteed; and positioning is carried out in a multi-point positioning mode, so that the stress on the special-shaped sheet metal part is more uniform, deformation caused by non-uniform stress is avoided, and the yield after welding is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of sheet metal welding processing and relates to a sheet metal welding processing device. Background Art

[0002] Sheet metal welding processing equipment is mainly used for the connection and fixation of metal sheets, and its application range is extremely wide, especially in many industries such as automobile manufacturing, aerospace, shipbuilding, and home appliances. In automobile manufacturing, body structures, chassis components, and interior parts all require high-precision welding to ensure the safety and aesthetics of the vehicle.

[0003] At present, when welding metal sheets, clamps and bolts are usually used to fix the sheet metal parts. However, when dealing with non-planar special-shaped sheet metal parts, the traditional clamp and bolt fixing method is difficult to firmly clamp complex geometric shapes, which can easily lead to inaccurate alignment between sheet metal parts, affecting the accuracy and quality of welding. In addition, this fixing method may also squeeze and deform the special-shaped sheet metal parts during the fixing process, thereby affecting the yield rate after welding. Summary of the invention

[0004] In view of this, the present invention provides a sheet metal welding processing device.

[0005] The technical solution is: a sheet metal welding processing device, including a processing table, an electric push rod, a mounting plate, a mounting frame, a welding gun and a fixing mechanism, electric push rods are installed on both sides of the processing table, a mounting plate is connected between the telescopic rods of the two electric push rods, a mounting frame is slidably connected to the mounting plate, a welding gun is installed on the mounting frame, and a fixing mechanism for fixing the sheet metal is provided between the processing table and the mounting plate.

[0006] Furthermore, the fixing mechanism includes a lower cylinder body, an upper cylinder body, an upper fixing rod, a lower fixing rod, a connecting pipe and an elastic member. Multiple lower cylinder bodies are evenly spaced and connected on both sides of the processing table, multiple upper cylinder bodies are evenly spaced and connected on both sides of the mounting plate, an upper fixing rod is slidably connected to the bottom of the upper cylinder body, a lower fixing rod is slidably connected to the top of the lower cylinder body, a connecting pipe is connected between the multiple upper cylinder bodies and the multiple lower cylinder bodies, the connecting pipe, the upper cylinder body and the lower cylinder body are all filled with hydraulic oil, and an elastic member is connected between the lower fixing rod and the lower cylinder body.

[0007] Furthermore, it also includes a driving mechanism, which includes a screw and a driving motor. The screw is rotatably connected to the mounting plate, the screw is threadedly matched with the mounting frame, the driving motor is installed on the mounting plate, and the output shaft of the driving motor is connected to the screw.

[0008] Furthermore, it also includes an extrusion mechanism, which includes an elastic member 2, a contact frame and a contact wheel. The elastic member 2 is connected between the welding gun and the mounting frame. The lower part of the welding gun is connected to the contact frame. The bottom of both sides of the contact frame are rotatably connected to contact wheels, and the contact wheels can contact the sheet metal.

[0009] Furthermore, it also includes a grinding mechanism, which includes a sliding frame, a third elastic member and an electric grinding wheel. The sliding frame is slidably connected to the mounting frame, and the third elastic member is connected between the sliding frame and the mounting frame. The electric grinding wheel is installed at the bottom of the sliding frame.

[0010] Furthermore, the grinding mechanism also includes a limiting arc plate, the lower portion of the sliding frame is connected to the limiting arc plate, and the bottom of the limiting arc plate is lower than the electric grinding wheel.

[0011] Furthermore, it also includes a supporting mechanism, which includes a supporting airbag, an air pipe and an air pump. Both sides of the top of the processing table are connected to supporting airbags for supporting sheet metal parts. An air pump is installed at the bottom of the processing table. Air pipes are connected between the air pump and the two supporting airbags.

[0012] Furthermore, it also includes a limiting mechanism, which includes a limiting plate, four elastic parts and a guide rod. The limiting plate is slidably connected in the middle of the processing table, and guide rods are connected on both sides of the limiting plate. The guide rods are slidably connected to the processing table, and four elastic parts are connected between the guide rods and the processing table.

[0013] The beneficial effects are as follows: 1. When fixing sheet metal parts, the present invention achieves the fixing of sheet metal parts by contacting multiple points of the sheet metal parts with multiple upper fixing rods and lower fixing rods, so as to facilitate the fixing processing of complex geometric shapes and ensure the accurate alignment between sheet metal parts, thereby ensuring the accuracy and quality of welding, and positioning is performed by multi-point positioning, so that the stress on special-shaped sheet metal parts is more uniform, and deformation due to uneven stress is not caused, thereby ensuring the yield after welding.

[0014] 2. After the welding of the sheet metal parts is completed, the present invention can contact the welding position of the two sheet metal parts through the electric grinding wheel, control the rotation of the electric grinding wheel, and grind the welds at the welding position of the sheet metal parts to achieve the effect of automatic grinding after welding is completed, without the need for subsequent manual grinding, and the operation is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0016] Figure 2 It is a structural schematic diagram of the driving mechanism of the present invention.

[0017] Figure 3 It is a front view of the fixing mechanism of the present invention.

[0018] Figure 4 It is a cross-sectional view of the fixing mechanism of the present invention.

[0019] Figure 5 This is a schematic diagram of the first structure of the extrusion mechanism of the present invention.

[0020] Figure 6 It is a second structural schematic diagram of the extrusion mechanism of the present invention.

[0021] Figure 7 This is a third structural schematic diagram of the extrusion mechanism of the present invention.

[0022] Figure 8 It is a schematic diagram of the first structure of the grinding mechanism of the present invention.

[0023] Fig. 9 This is a second structural schematic diagram of the grinding mechanism of the present invention.

[0024] Fig.10 It is a structural schematic diagram of the support mechanism of the present invention.

[0025] Fig.11 It is a cross-sectional view of the support mechanism of the present invention.

[0026] Fig.12 It is a structural schematic diagram of the limiting mechanism of the present invention.

[0027] The names and serial numbers of the parts in the figure are: 1_processing table, 2_electric push rod, 3_mounting plate, 4_mounting frame, 51_screw, 52_driving motor, 6_welding gun, 71_lower cylinder body, 72_upper cylinder body, 73_upper fixing rod, 731_lower fixing rod, 74_connecting pipe, 75_elastic part one, 81_elastic part two, 82_contact frame, 83_contact wheel, 91_sliding frame, 92_elastic part three, 93_electric grinding wheel, 94_limiting arc plate, 101_support airbag, 102_air pipe, 103_air pump, 111_limiting plate, 112_elastic part four, 113_guide rod, 100_sheet metal part. DETAILED DESCRIPTION

[0028] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the present application and are not limited to the scope of the present application. The implementation conditions adopted in the examples can be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0029] A sheet metal welding processing device, such as Figure 1-Figure 4As shown, it includes a processing table 1, an electric push rod 2, a mounting plate 3, a mounting frame 4, a welding gun 6 and a fixing mechanism. The electric push rods 2 are installed on the left and right sides of the processing table 1. The mounting plate 3 is connected between the telescopic rods of the two electric push rods 2. The mounting frame 4 is slidably connected to the mounting plate 3. The mounting frame 4 can slide left and right along the mounting plate 3. The welding gun 6 is installed on the mounting frame 4. The welding end of the welding gun 6 faces downward and can slide up and down on the mounting frame 4. A fixing mechanism for fixing the sheet metal part 100 is provided between the processing table 1 and the mounting plate 3.

[0030] like Figure 3 and Figure 4 As shown, the fixing mechanism includes a lower cylinder 71, an upper cylinder 72, an upper fixing rod 73, a lower fixing rod 731, a connecting pipe 74 and an elastic member 75. The front and rear sides of the processing table 1 are evenly spaced and connected with a plurality of lower cylinders 71, and the front and rear sides of the mounting plate 3 are evenly spaced and connected with a plurality of upper cylinders 72. The bottom of the upper cylinder 72 is slidably connected with the upper fixing rod 73, and the top of the lower cylinder 71 is slidably connected with the lower fixing rod 731. The lower fixing rod 731 and the upper fixing rod 73 can resist the sheet metal part 100, and the sheet metal part 100 is fixed, and a connecting pipe 74 is connected between the multiple upper cylinder bodies 72 and the multiple lower cylinder bodies 71. The connecting pipe 74, the upper cylinder bodies 72 and the lower cylinder bodies 71 are all filled with hydraulic oil, so that the lower fixing rod 731 can squeeze the hydraulic oil when it moves downward in the lower cylinder body 71, so that the hydraulic oil squeezes the upper fixing rod 73 to move downward against the sheet metal part 100, thereby assisting in fixing the sheet metal part 100. An elastic member 75 is connected between the lower fixing rod 731 and the lower cylinder body 71, and the elastic member 75 is a return spring.

[0031] When it is necessary to perform welding processing on the sheet metal part 100, the present device can be used. When in use, the telescopic rod of the electric push rod 2 can be controlled to extend to drive the mounting plate 3 to move upward, so that the upper fixing rod 73 and the lower fixing rod 731 are separated, and then the two sheet metal parts 100 to be welded together are placed on the front and rear sides of the processing table 1 respectively. After the placement is completed, the electric push rod 2 is controlled to drive the mounting plate 3 to descend. When the mounting plate 3 descends, it can drive the upper fixing rod 73 to move downward. When the upper fixing rod 73 moves down to contact with the sheet metal part 100, it can squeeze the sheet metal part 100 to move downward. When the sheet metal part 100 moves downward, it will squeeze the lower fixing rod 731 to move downward, and the elastic member 75 is compressed. When the lower fixing rod 731 descends, The hydraulic oil in the lower cylinder 71 will be squeezed and injected into the upper cylinder 72 through the connecting pipe 74, so that the upper fixing rod 73 will descend and press against the top of the sheet metal 100, and the upper and lower sides of the sheet metal 100 will be pressed against by multiple lower fixing rods 731 and upper fixing rods 73 respectively to fix the sheet metal 100. After fixation, the welding gun 6 can be pulled out to weld the two sheet metals 100. In this way, the sheet metal 100 can be welded using the device, and when fixing, it is fixed at multiple points by multiple upper fixing rods 73 and lower fixing rods 731, so that the sheet metal 100 will not be squeezed and deformed, thereby ensuring that the two sections of the sheet metal 100 can be aligned with each other and that stability during welding can be ensured.

[0032] like Figure 2 As shown, a driving mechanism is also included, and the driving mechanism includes a screw 51 and a driving motor 52. The screw 51 is rotatably connected to the mounting plate 3, and the screw 51 is threadedly matched with the mounting frame 4, so that the screw 51 can drive the mounting frame 4 to move left and right through the thread when rotating. The driving motor 52 is installed on the mounting plate 3, and the output shaft of the driving motor 52 is connected to the screw 51 through a coupling.

[0033] like Figure 5-Figure 7 As shown, an extrusion mechanism is also included, and the extrusion mechanism includes an elastic member 81, a contact frame 82 and a contact wheel 83. An elastic member 81 is connected between the welding gun 6 and the mounting frame 4, and the elastic member 81 is a pressure spring. The lower part of the welding gun 6 is connected to the contact frame 82, and the bottom of the front and rear sides of the contact frame 82 are rotatably connected to the contact wheel 83, and the contact wheel 83 can contact the sheet metal part 100.

[0034] When the welding end of the welding gun 6 is against the gap between the two sheet metal parts 100, the elastic part 2 81 is in a stretched state. At this time, the contact wheel 83 also contacts the sheet metal part 100. Then, the welding gun 6 can be controlled to operate to weld the sheet metal part 100. During welding, the driving motor 52 is controlled to drive the screw 51 to rotate. The rotation of the screw 51 can drive the mounting frame 4 and the welding gun 6 to move left and right, thereby adjusting the position of the welding gun 6 to facilitate the welding of the sheet metal part 100. When encountering a position on the sheet metal part 100 that can be moved up and down, the welding gun 6 will move up and down under the action of the elastic part 2 81, so that the welding gun 6 always maintains contact with the sheet metal part 100, and the contact wheel 83 can assist the movement of the welding gun 6. In this way, the automatic welding of the sheet metal part 100 can be realized, and there is no need for manual operation for welding, which is more convenient during operation.

[0035] like Figure 8 and Fig. 9 As shown, it also includes a grinding mechanism, which includes a sliding frame 91, an elastic member 92, an electric grinding wheel 93 and a limiting arc plate 94. The sliding frame 91 is slidably connected to the left side of the mounting frame 4, and an elastic member 92 is connected between the sliding frame 91 and the mounting frame 4. The elastic member 92 is a connecting spring. An electric grinding wheel 93 is installed at the bottom of the sliding frame 91, and a limiting arc plate 94 is connected to the lower part of the sliding frame 91. The bottom of the limiting arc plate 94 is slightly lower than the electric grinding wheel 93.

[0036] During the welding process, the electric grinding wheel 93 will contact the welding position, and the elastic member 3 92 can apply downward pressure to the electric grinding wheel 93, while the limiting arc plate 94 can limit the electric grinding wheel 93 to prevent the electric grinding wheel 93 from grinding too deep. Then the electric grinding wheel 93 is controlled to start rotating. At this time, the movement of the mounting frame 4 can drive the electric grinding wheel 93 to grind the welding position of the two sheet metal parts 100 and grind the welding position smooth. In this way, the effect of automatic grinding of the sheet metal parts 100 after welding can be achieved, without the need for manual subsequent grinding work, and the operation is more convenient.

[0037] like Fig.10 and Fig.11 As shown, a supporting mechanism is also included, and the supporting mechanism includes a supporting airbag 101, an air pipe 102 and an air pump 103. The front and rear sides of the top of the processing table 1 are connected to the supporting airbag 101, and the supporting airbag 101 is used to support the sheet metal part 100. An air pump 103 is installed at the bottom of the processing table 1, and the air pipe 102 is connected between the air pump 103 and the two supporting airbags 101.

[0038] When placing the sheet metal part 100, the support airbag 101 is used to support the outside of the sheet metal part 100, and then the air pump 103 is controlled to operate to inflate the support airbag 101 through the air pipe 102, so that the support airbag 101 lifts the outside of the sheet metal part 100, so that the sheet metal part 100 is in a balanced state as a whole, which is convenient for welding.

[0039] like Fig.12 As shown, it also includes a limiting mechanism, which includes a limiting plate 111, an elastic member 112 and a guide rod 113. The limiting plate 111 is slidably connected in the middle of the processing table 1, and the left and right sides of the limiting plate 111 are connected to guide rods 113. The guide rod 113 is slidably connected to the processing table 1, and an elastic member 112 is connected between the guide rod 113 and the processing table 1. The elastic member 112 is a compression spring, and the guide rod 113 is located below the mounting plate 3.

[0040] When placing the sheet metal parts 100, the two sheet metal parts 100 can be respectively pressed against the two sides of the limit plate 111, and the two sheet metal parts 100 are separated by the limit plate 111. Then, when the installation plate 3 moves downward, it can contact the guide rod 113 and squeeze the guide rod 113 downward, thereby driving the limit plate 111 to move downward, and the elastic member 112 is compressed. After the limit plate 111 moves downward, it is no longer located in the middle of the two sheet metal parts 100, and welding can be carried out at this time. In this way, the spacing between the two sheet metal parts 100 can be controlled by the limit plate 111, and there is no need to leave a gap through manual measurement, which makes the operation more convenient.

[0041] The technical principles of the embodiments of the present invention are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present invention and cannot be interpreted in any way as limiting the protection scope of the embodiments of the present invention. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the embodiments of the present invention without creative work, and these methods will fall within the protection scope of the embodiments of the present invention.

Claims

1. A sheet metal welding processing device, characterized in that: The invention comprises a processing table (1), an electric push rod (2), a mounting plate (3), a mounting frame (4), a welding gun (6) and a fixing mechanism, wherein the electric push rods (2) are mounted on both sides of the processing table (1), a mounting plate (3) is connected between the telescopic rods of the two electric push rods (2), the mounting plate (3) is slidably connected to the mounting frame (4), the welding gun (6) is mounted on the mounting frame (4), and a fixing mechanism for fixing the sheet metal part (100) is provided between the processing table (1) and the mounting plate (3).

2. A sheet metal welding processing device according to claim 1, characterized in that: The fixing mechanism comprises a lower cylinder (71), an upper cylinder (72), an upper fixing rod (73), a lower fixing rod (731), a connecting pipe (74) and an elastic member (75). The two sides of the processing table (1) are evenly spaced and connected to a plurality of lower cylinders (71); the two sides of the mounting plate (3) are evenly spaced and connected to a plurality of upper cylinders (72); the bottom of the upper cylinder (72) is slidably connected to an upper fixing rod (73); the top of the lower cylinder (71) is slidably connected to a lower fixing rod (731); a connecting pipe (74) is connected between the plurality of upper cylinders (72) and the plurality of lower cylinders (71); the connecting pipe (74), the upper cylinder (72) and the lower cylinder (71) are all filled with hydraulic oil; and an elastic member (75) is connected between the lower fixing rod (731) and the lower cylinder (71).

3. The sheet metal welding processing device according to claim 1, characterized in that: The device also comprises a driving mechanism, the driving mechanism comprising a screw rod (51) and a driving motor (52); the screw rod (51) is rotatably connected to the mounting plate (3); the screw rod (51) is threadably matched with the mounting frame (4); the driving motor (52) is mounted on the mounting plate (3); and the output shaft of the driving motor (52) is connected to the screw rod (51).

4. A sheet metal welding processing device according to claim 3, characterized in that: The invention also includes an extrusion mechanism, the extrusion mechanism including an elastic member 2 (81), a contact frame (82) and a contact wheel (83), the elastic member 2 (81) is connected between the welding gun (6) and the mounting frame (4), the lower part of the welding gun (6) is connected to the contact frame (82), the bottoms of both sides of the contact frame (82) are rotatably connected to the contact wheels (83), and the contact wheels (83) are capable of contacting the sheet metal part (100).

5. The sheet metal welding processing device according to claim 1, characterized in that: The invention also comprises a grinding mechanism, the grinding mechanism comprising a sliding frame (91), a third elastic member (92) and an electric grinding wheel (93); the sliding frame (91) is slidably connected to the mounting frame (4); the third elastic member (92) is connected between the sliding frame (91) and the mounting frame (4); and the electric grinding wheel (93) is installed at the bottom of the sliding frame (91).

6. The sheet metal welding processing device according to claim 5, characterized in that: The grinding mechanism further comprises a limiting arc plate (94), the lower portion of the sliding frame (91) is connected to the limiting arc plate (94), and the bottom of the limiting arc plate (94) is lower than the electric grinding wheel (93).

7. The sheet metal welding processing device according to claim 1, characterized in that: It also includes a support mechanism, the support mechanism including a support airbag (101), an air pipe (102) and an air pump (103), both sides of the top of the processing table (1) are connected to support airbags (101) for supporting the sheet metal part (100), the bottom of the processing table (1) is equipped with an air pump (103), and the air pipe (102) is connected between the air pump (103) and the two support airbags (101).

8. The sheet metal welding processing device according to claim 1, characterized in that: The processing platform (1) further comprises a limiting mechanism, wherein the limiting mechanism comprises a limiting plate (111), a fourth elastic member (112) and a guide rod (113); the middle of the processing platform (1) is slidably connected to the limiting plate (111); both sides of the limiting plate (111) are connected to guide rods (113); the guide rods (113) are slidably connected to the processing platform (1); and the fourth elastic member (112) is connected between the guide rod (113) and the processing platform (1).

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