CN213053482U - Frame welding tool for air source system - Google Patents

Abstract

The utility model discloses a wind source system frame welding tool, which comprises a supporting seat, wherein a first base plate, a second base plate, a third base plate and a fourth base plate which are used for supporting a frame and have the same height are sequentially arranged on a workbench of the supporting seat from front to back, and the front end and the rear end of two L-shaped side sheet metal parts are respectively placed on the first base plate and the fourth base plate and then are fixed; the front bottom sheet metal part is placed on the second base plate and then fixed; the middle bottom sheet metal part is placed on the third base plate and then fixed; the rear bottom sheet metal part is placed on the fourth base plate and then fixed; the L-shaped bottom sheet metal part is placed on the transverse base plate of the third base plate and then fixed. The utility model discloses simple structure, design benefit, frame location is fixed quick, assembles swiftly, improves work efficiency, and convenient welding can reduce welding deformation, improves the product percent of pass.

Description

Frame welding tool for air source system

Technical Field

The utility model relates to a welding frock, more specifically say, relate to a wind regime frame welding frock.

Background

The wind source system is used as a key part of the railway vehicle, and the main function of the wind source system is to generate compressed air and purify the compressed air to obtain clean and dry compressed air to supply to a vehicle braking system and other wind utilization equipment. The performance of the wind source system directly concerns the running safety and riding comfort of the train.

The frame welded structure used in the wind source system comprises two L-shaped side sheet metal parts, a front bottom sheet metal part, a middle bottom sheet metal part and a rear bottom sheet metal part, wherein the front bottom sheet metal part, the middle bottom sheet metal part and the rear bottom sheet metal part are positioned between the two L-shaped side sheet metal parts, and the two L-shaped side sheet metal parts, the front bottom sheet metal part, the middle bottom sheet metal part and the rear bottom sheet metal part need to be assembled and then welded together. Because the frame welding structure part is characterized by thin material thickness, large product volume, complex welding position and large welding deformation, a welding tool is specially designed in order to reduce the workload of splicing points and the welding deformation and meet the requirements of drawing size and form and position tolerance.

Disclosure of Invention

1. Technical problem to be solved by the utility model

The utility model aims to overcome foretell not enough, provide a wind regime system frame welding frock, adopt the technical scheme of the utility model, simple structure, design benefit, frame location is fixed quick, assembles swiftly, improves work efficiency, and convenient welding can reduce welding deformation, improves the product percent of pass.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model discloses a wind regime system frame welding frock, including the supporting seat, the workstation of supporting seat on from the front to back set gradually be used for braced frame and equal high first backing plate, second backing plate, third backing plate and fourth backing plate, the left and right sides both ends of first backing plate all processed and have the first locating hole that is used for being connected with first connecting hole on the horizontal plate of L shape side sheet metal component, the left and right sides both ends of fourth backing plate all processed and have the second locating hole that is used for being connected with second connecting hole on the horizontal plate of L shape side sheet metal component; the first base plate supports a front lower layer longitudinal plate I of the front bottom sheet metal part, and the second base plate supports a rear lower layer longitudinal plate I of the front bottom sheet metal part; a third positioning hole used for being connected with a third connecting hole in a front lower-layer longitudinal plate I of the front bottom sheet metal part is formed in the middle of the first base plate, the front upper-layer longitudinal plate I of the front bottom sheet metal part is pressed and fixed by a first pressing plate assembly arranged on the workbench, and a rear upper-layer longitudinal plate I of the front bottom sheet metal part is clamped and fixed by a C-shaped clamp assembly arranged on the second base plate;

the third base plate supports a front lower layer longitudinal plate II of the middle bottom sheet metal part, and fourth positioning holes for connecting with fourth connecting holes on the two convex tongues of the middle bottom sheet metal part are formed in the two front convex blocks of the third base plate;

the fourth base plate supports a rear lower-layer longitudinal plate III of the rear bottom sheet metal part, a fifth positioning hole used for being connected with a fifth connecting hole in the rear lower-layer longitudinal plate III of the rear bottom sheet metal part is machined in the middle of the fourth base plate, and a front upper-layer longitudinal plate III of the rear bottom sheet metal part is pressed and fixed by a second pressing plate assembly arranged on the workbench;

the horizontal backing plate of third backing plate support the horizontal board of sheet metal component at the bottom of the L shape, the vertical board III of back upper strata of sheet metal component at the bottom of the back and the vertical board of the shape of falling L of sheet metal component at the bottom of the centre all by the locating component location of setting at the workstation fixed.

Furthermore, first clamp plate subassembly and second clamp plate subassembly all include the clamp plate, control two relative settings be used for supporting before the vertical board of upper strata I or preceding vertical board III's of upper strata the supporting pad piece and set up the fixed block for fixed pressing plate between two first supporting pad pieces, the clamp plate on process have along the waist shape hole that left right direction set up, preceding vertical board of upper strata I or preceding vertical board III of upper strata are pressed from both sides the back between first supporting pad piece and clamp plate, fastening bolt passes and twists in the screw hole on the fixed block behind the waist shape hole.

Furthermore, a sixth positioning hole used for being connected with a sixth connecting hole in the front upper layer longitudinal plate I or the front upper layer longitudinal plate III is machined in the first supporting cushion block.

Furthermore, the C-shaped clamp assembly comprises a supporting assembly used for supporting the rear upper layer longitudinal plate I, and the supporting assembly comprises two second supporting cushion blocks fixedly arranged on the two rear convex blocks of the second cushion plate respectively and a supporting cushion plate fixedly arranged between the two second supporting cushion blocks; c-shaped clamps which are oppositely arranged at the left and the right are fixed on the supporting base plate, and a clamping bolt is arranged on an upper cantilever of each C-shaped clamp; and the rear upper-layer longitudinal plate I is arranged between the support component and the butt joint end of the clamping bolt and then is clamped by screwing the clamping bolt.

Furthermore, a seventh positioning hole used for being connected with a seventh connecting hole in the rear upper layer longitudinal plate I is machined in the second supporting cushion block.

Furthermore, the positioning assembly comprises a third supporting cushion block for supporting the longitudinal plate of the inverted L-shaped longitudinal plate, a supporting longitudinal plate for abutting against the vertical plate of the inverted L-shaped longitudinal plate, a supporting transverse plate for abutting against the vertical plate of the L-shaped bottom sheet metal part and a positioning plate which is horizontally arranged, wherein the supporting transverse plate and the supporting longitudinal plate are fixedly arranged at the bottom of the positioning plate; the transverse plate of the inverted L-shaped longitudinal plate is arranged between the third supporting cushion block and the front end of the positioning plate, and the front end of the positioning plate is provided with an eighth positioning hole used for being connected with an eighth connecting hole in the transverse plate of the inverted L-shaped longitudinal plate; the front side surface of the supporting longitudinal plate is fixedly provided with a positioning column which is used for being connected with a ninth connecting hole on the vertical plate of the inverted L-shaped longitudinal plate; the supporting transverse plate is provided with a tenth positioning hole used for being connected with a tenth connecting hole in the vertical plate of the L-shaped bottom sheet metal part; and the rear upper layer longitudinal plate III is abutted against the lower surface of the rear end of the positioning plate, and the rear end of the positioning plate is provided with an eleventh positioning hole for being connected with an eleventh connecting hole in the rear upper layer longitudinal plate III.

Furthermore, hanging rings are fixedly arranged at four corners of the workbench.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with existing well-known technique, have following beneficial effect:

(1) the utility model discloses a wind regime system frame welding frock, it places two L shape side sheet metal parts, the front bottom sheet metal part, the middle bottom sheet metal part, the back bottom sheet metal part and L shape bottom sheet metal part respectively behind the upper surface of first backing plate, the second backing plate, the third backing plate and the fourth backing plate, the L shape side sheet metal part is fixed a position fast through the mode that connecting hole and locating hole are connected, the front bottom sheet metal part is fixed a position fast through the mode that connecting hole and locating hole are connected, the mode that the first clamp plate subassembly compresses tightly and the mode that C-shaped clamp subassembly centre gripping is fixed, the middle bottom sheet metal part is fixed a position fast through the mode that connecting hole and locating hole are connected and the mode that locating component is fixed a position fast, the L shape bottom sheet metal part is fixed a position fast through the mode that connecting hole and locating hole are connected and the mode that locating component is fixed a position, the frame is fast in positioning and fixing, fast in assembling, capable of improving working efficiency, convenient to weld, capable of reducing welding deformation and improving product percent of pass;

(2) the utility model discloses a wind regime system frame welding frock, four angle departments of its workstation all set firmly rings, make things convenient for the frock to remove, hoist and mount.

Drawings

Fig. 1 is a schematic structural view of a wind source system frame welding tool of the present invention;

fig. 2 is a partial enlarged view of a positioning component in the wind source system frame welding tool of the present invention;

fig. 3 is a schematic view of a connection structure between a frame welding tool and a frame of the wind source system of the present invention;

fig. 4 is a schematic structural diagram of a conventional frame.

The reference numerals in the schematic drawings illustrate: 1. a supporting seat; 1-1, a workbench; 2. a first backing plate; 2-1, a first positioning hole; 2-2, a third positioning hole; 3. a second backing plate; 3-1, rear lug; 4. a third base plate; 4-1, a front convex block; 4-2, a fourth positioning hole; 4-3, a transverse cushion plate; 5. a fourth base plate; 5-1, second positioning holes; 5-2, a fifth positioning hole; 6-1, pressing a plate; 6-1-1, a waist-shaped hole; 6-2, a first support pad; 6-2-1, a sixth positioning hole; 6-3, fixing blocks; 6-4, fastening bolts; 7-1, a second supporting cushion block; 7-2, supporting a base plate; 7-3, C-shaped clamp; 7-4, clamping bolts; 8-1, a third supporting cushion block; 8-2, supporting the longitudinal plate; 8-3, supporting the transverse plate; 8-3-1, a tenth positioning hole; 8-4, positioning plates; 8-4-1, an eighth positioning hole; 8-4-2, an eleventh positioning hole; 8-5, a positioning column; 9. a hoisting ring; A. an L-shaped side sheet metal part; a-1, a first connecting hole; a-2, a second connecting hole; B. a front bottom sheet metal part; b-1, a front lower layer longitudinal plate I; b-2, a rear lower layer longitudinal plate I; b-3, a third connecting hole; b-4, a front upper layer longitudinal plate I; b-5, a rear upper layer longitudinal plate I; b-6, a seventh connecting hole; C. a middle bottom sheet metal part; c-1, a front lower layer longitudinal plate II; c-2, a convex tongue; c-3, a fourth connecting hole; c-4, an inverted L-shaped longitudinal plate; c-5, an eighth connecting hole; c-6, ninth connecting hole; D. a back bottom sheet metal part; d-1, a rear lower layer longitudinal plate III; d-2, a fifth connecting hole; d-3, a front upper layer longitudinal plate III; d-4, a rear upper layer longitudinal plate III; d-5, an eleventh connecting hole; E. an L-shaped bottom sheet metal part; e-1 and a tenth connecting hole.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

Examples

With reference to fig. 1, 3 and 4, the wind source system frame welding tool of the embodiment includes a support base 1, and rings 9 are fixedly arranged at four corners of a workbench 1-1, so that the tool is convenient to move and hoist; a first base plate 2, a second base plate 3, a third base plate 4 and a fourth base plate 5 which are used for supporting a frame and have the same height are sequentially arranged on a workbench 1-1 of the supporting seat 1 from front to back, first positioning holes 2-1 used for being connected with first connecting holes A-1 on a transverse plate of an L-shaped side sheet metal part A are processed at the left end and the right end of the first base plate 2, and second positioning holes 5-1 used for being connected with second connecting holes A-2 on the transverse plate of the L-shaped side sheet metal part A are processed at the left end and the right end of the fourth base plate 5; the first backing plate 2 supports a front lower layer longitudinal plate IB-1 of the front bottom sheet metal part B, and the second backing plate 3 supports a rear lower layer longitudinal plate IB-2 of the front bottom sheet metal part B; a third positioning hole 2-2 used for being connected with a third connecting hole B-3 on a front lower layer longitudinal plate IB-1 of a front bottom sheet metal part B is formed in the middle of the first base plate 2, a front upper layer longitudinal plate IB-4 of the front bottom sheet metal part B is pressed and fixed by a first pressing plate assembly arranged on the workbench 1-1, and a rear upper layer longitudinal plate IB-5 of the front bottom sheet metal part B is clamped and fixed by a C-shaped clamp assembly arranged on the second base plate 3;

subsequently, the third backing plate 4 supports a front lower layer longitudinal plate IIC-1 of the middle bottom sheet metal part C, and fourth positioning holes 4-2 used for being connected with fourth connecting holes C-3 on two convex tongues C-2 of the middle bottom sheet metal part C are processed on two front convex blocks 4-1 of the third backing plate 4;

subsequently, a fourth backing plate 5 supports a rear lower layer longitudinal plate III D-1 of the rear bottom sheet metal part D, a fifth positioning hole 5-2 used for being connected with a fifth connecting hole D-2 in the rear lower layer longitudinal plate III D-1 of the rear bottom sheet metal part D is machined in the middle of the fourth backing plate 5, and a front upper layer longitudinal plate III D-3 of the rear bottom sheet metal part D is pressed and fixed by a second pressing plate assembly arranged on the workbench 1-1;

and continuously, the transverse backing plate 4-3 of the third backing plate 4 supports the transverse plate of the L-shaped bottom sheet metal part E, and the vertical plate of the L-shaped bottom sheet metal part E, the rear upper layer longitudinal plate III D-4 of the rear bottom sheet metal part D and the inverted L-shaped longitudinal plate C-4 of the middle bottom sheet metal part C are all fixedly positioned by a positioning component arranged on the workbench 1-1.

When welding is needed, firstly, two L-shaped side sheet metal parts A are placed on a horizontal plane where the upper surfaces of a first base plate 2, a second base plate 3, a third base plate 4 and a fourth base plate 5 are located, and then the L-shaped side sheet metal parts A are located and fixed in a mode that a first connecting hole A-1 on a transverse plate of the L-shaped side sheet metal parts A is connected with a first locating hole 2-1 on the first base plate 2 and a second connecting hole A-2 on the transverse plate of the L-shaped side sheet metal parts A is connected with a second locating hole 5-1 on the fourth base plate 5; then arranging a front bottom sheet metal part B between the two L-shaped side sheet metal parts A, placing a front lower layer longitudinal plate IB-1 of the front bottom sheet metal part B on the first backing plate 2, placing a rear lower layer longitudinal plate IB-2 of the front bottom sheet metal part B on the second backing plate 3, positioning and fixing the front lower layer longitudinal plate IB-1 in a manner that a third connecting hole B-3 on the front lower layer longitudinal plate IB-1 is connected with a third positioning hole 2-2 on the first backing plate 2, pressing and fixing a front upper layer longitudinal plate IB-4 of the front bottom sheet metal part B through the first pressing plate assembly, and clamping and fixing a rear upper layer longitudinal plate IB-5 of the front bottom sheet metal part B through the C-shaped clamping assembly; then arranging a middle bottom sheet metal part C between the two L-shaped side sheet metal parts A, placing a front lower layer longitudinal plate IIC-1 of the middle bottom sheet metal part C on a third backing plate 4, and positioning and fixing the front lower layer longitudinal plate IIC-1 of the middle bottom sheet metal part C in a mode that a fourth positioning hole 4-2 on two front convex blocks 4-1 of the third backing plate 4 is connected with a fourth connecting hole C-3 on two convex tongues C-2 of the middle bottom sheet metal part C; then, a rear bottom sheet metal part D is placed between the two L-shaped side sheet metal parts A, a rear lower layer longitudinal plate III D-1 of the rear bottom sheet metal part D is placed on the fourth base plate 5, and the rear bottom sheet metal part D is positioned and fixed in a mode of connecting a fifth positioning hole 5-2 in the fourth base plate 5 with a fifth connecting hole D-2 in the rear lower layer longitudinal plate III D-1 of the rear bottom sheet metal part D; then, a transverse plate of the L-shaped bottom sheet metal part E is arranged on a transverse base plate 4-3 of the third base plate 4, and is positioned and fixed by a positioning component through a vertical plate of the L-shaped bottom sheet metal part E, a rear upper layer longitudinal plate III D-4 of the rear bottom sheet metal part D and an inverted L-shaped longitudinal plate C-4 of the middle bottom sheet metal part C; the frame is fast in positioning and fixing, fast in assembling, capable of improving working efficiency, convenient to weld, capable of reducing welding deformation and improving product percent of pass;

the first pressing plate assembly and the second pressing plate assembly respectively comprise a pressing plate 6-1, two first supporting cushion blocks 6-2 which are oppositely arranged at the left and right and used for supporting a front upper layer longitudinal plate IB-4 or a front upper layer longitudinal plate IIID-3, and a fixing block 6-3 which is arranged between the two first supporting cushion blocks 6-2 and used for fixing the pressing plate 6-1, a kidney-shaped hole 6-1-1 which is arranged along the left and right direction is processed on the pressing plate 6-1, after the front upper layer longitudinal plate IB-4 or the front upper layer longitudinal plate IIID-3 is clamped between the first supporting cushion block 6-2 and the pressing plate 6-1, a fastening bolt 6-4 penetrates through the kidney-shaped hole 6-1-1 and then is screwed into a threaded hole in the fixing block 6-3; after the front upper layer longitudinal plate IB-4 or the front upper layer longitudinal plate IIID-3 is placed on the first supporting cushion block 6-2, the pressing plate 6-1 covers the front upper layer longitudinal plate IB-4 or the front upper layer longitudinal plate IIID-3 and is fixed by screwing the fastening bolt 6-4; in order to ensure that the front upper layer longitudinal plate IB-4 or the front upper layer longitudinal plate IIID-3 is more stably installed; a sixth positioning hole 6-2-1 used for being connected with a sixth connecting hole in the front upper layer longitudinal plate IB-4 or the front upper layer longitudinal plate IIID-3 is machined in the first supporting cushion block 6-2;

the C-shaped clamp assembly comprises a supporting assembly used for supporting the rear upper layer longitudinal plate IB-5, the supporting assembly comprises two second supporting cushion blocks 7-1 fixedly arranged on the two rear convex blocks 3-1 of the second base plate 3 respectively and a supporting base plate 7-2 fixedly arranged between the two second supporting cushion blocks 7-1, the supporting base plate 7-2 is provided with C-shaped clamps 7-3 which are arranged oppositely left and right, and an upper cantilever of each C-shaped clamp 7-3 is provided with a clamping bolt 7-4; the rear upper layer longitudinal plate IB-5 is arranged between the support assembly and the abutting end of the clamping bolt 7-4 and then is clamped by screwing the clamping bolt 7-4; after the rear upper layer longitudinal plate IB-5 is placed on the supporting assembly, the clamping bolt 7-4 is screwed so that the abutting end of the clamping bolt 7-4 abuts against the rear upper layer longitudinal plate IB-5; in order to ensure that the upper-layer longitudinal plate IB-5 is installed more stably, a seventh positioning hole 7-1-1 used for being connected with a seventh connecting hole B-6 on the rear upper-layer longitudinal plate IB-5 is machined in the second supporting cushion block 7-1;

continuing and combining with the figure 2, the positioning assembly comprises a third supporting cushion block 8-1 for supporting the longitudinal plate of the inverted L-shaped longitudinal plate C-4, a supporting longitudinal plate 8-2 for abutting against the vertical plate of the inverted L-shaped longitudinal plate C-4, a supporting transverse plate 8-3 for abutting against the vertical plate of the L-shaped bottom sheet metal part E and a positioning plate 8-4 arranged horizontally, wherein the supporting transverse plate 8-3 and the supporting longitudinal plate 8-2 are fixedly arranged at the bottom of the positioning plate 8-4; a transverse plate of the inverted L-shaped longitudinal plate C-4 is arranged between the third supporting cushion block 8-1 and the front end of the positioning plate 8-4, and the front end of the positioning plate 8-4 is provided with an eighth positioning hole 8-4-1 used for being connected with an eighth connecting hole C-5 on the transverse plate of the inverted L-shaped longitudinal plate C-4; the front side surface of the supporting longitudinal plate 8-2 is fixedly provided with a positioning column 8-5 which is used for being connected with a ninth connecting hole C-6 on the vertical plate of the inverted L-shaped longitudinal plate C-4; a tenth positioning hole 8-3-1 used for being connected with a tenth connecting hole E-1 in the vertical plate of the L-shaped bottom sheet metal part E is formed in the supporting transverse plate 8-3; the rear upper layer longitudinal plate IIID-4 is abutted against the lower surface of the rear end of the positioning plate 8-4, and the rear end of the positioning plate 8-4 is provided with an eleventh positioning hole 8-4-2 used for being connected with an eleventh connecting hole D-5 on the rear upper layer longitudinal plate IIID-4.

The utility model discloses a wind regime system frame welding frock, the frame location is fixed quick, assembles swiftly, improves work efficiency, and convenient welding can reduce welding deformation, improves the product percent of pass.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims (7)

1. The utility model provides a wind regime frame welding frock which characterized in that: the support comprises a support seat (1), wherein a first base plate (2), a second base plate (3), a third base plate (4) and a fourth base plate (5) which are used for supporting a frame and have the same height are sequentially arranged on a workbench (1-1) of the support seat (1) from front to back, first positioning holes (2-1) used for being connected with first connecting holes (A-1) on a transverse plate of an L-shaped side sheet metal part (A) are respectively processed at the left end and the right end of the first base plate (2), and second positioning holes (5-1) used for being connected with second connecting holes (A-2) on a transverse plate of the L-shaped side sheet metal part (A) are respectively processed at the left end and the right end of the fourth base plate (5); the first backing plate (2) supports a front lower layer longitudinal plate I (B-1) of the front bottom sheet metal part (B), and the second backing plate (3) supports a rear lower layer longitudinal plate I (B-2) of the front bottom sheet metal part (B); a third positioning hole (2-2) used for being connected with a third connecting hole (B-3) in a front lower layer longitudinal plate I (B-1) of a front bottom sheet metal part (B) is machined in the middle of the first base plate (2), a front upper layer longitudinal plate I (B-4) of the front bottom sheet metal part (B) is pressed and fixed by a first pressing plate assembly arranged on the workbench (1-1), and a rear upper layer longitudinal plate I (B-5) of the front bottom sheet metal part (B) is clamped and fixed by a C-shaped clamp assembly arranged on the second base plate (3);

the third base plate (4) supports a front lower layer longitudinal plate II (C-1) of the middle bottom sheet metal part (C), and fourth positioning holes (4-2) for connecting with fourth connecting holes (C-3) on two convex tongues (C-2) of the middle bottom sheet metal part (C) are processed on two front convex blocks (4-1) of the third base plate (4);

the fourth backing plate (5) supports a rear lower layer longitudinal plate III (D-1) of the rear bottom sheet metal part (D), a fifth positioning hole (5-2) used for being connected with a fifth connecting hole (D-2) in the rear lower layer longitudinal plate III (D-1) of the rear bottom sheet metal part (D) is machined in the middle of the fourth backing plate (5), and a front upper layer longitudinal plate III (D-3) of the rear bottom sheet metal part (D) is pressed and fixed by a second pressing plate assembly arranged on the workbench (1-1);

the transverse backing plate (4-3) of the third backing plate (4) supports the transverse plate of the L-shaped bottom sheet metal part (E), and the vertical plate of the L-shaped bottom sheet metal part (E), the rear upper layer longitudinal plate III (D-4) of the rear bottom sheet metal part (D) and the inverted L-shaped longitudinal plate (C-4) of the middle bottom sheet metal part (C) are all fixed by a positioning component arranged on the workbench (1-1).

2. The wind source system frame welding tool of claim 1, wherein: the first pressure plate component and the second pressure plate component both comprise a pressure plate (6-1), two first supporting cushion blocks (6-2) which are oppositely arranged at the left and the right and are used for supporting a front upper layer longitudinal plate I (B-4) or a front upper layer longitudinal plate III (D-3), and a fixing block (6-3) which is arranged between the two first supporting cushion blocks (6-2) and is used for fixing the pressure plate (6-1), the pressing plate (6-1) is provided with a waist-shaped hole (6-1-1) arranged along the left-right direction, the front upper layer longitudinal plate I (B-4) or the front upper layer longitudinal plate III (D-3) is clamped between the first supporting cushion block (6-2) and the pressing plate (6-1), the fastening bolt (6-4) passes through the waist-shaped hole (6-1-1) and then is screwed into the threaded hole on the fixing block (6-3).

3. The wind source system frame welding tool of claim 2, wherein: and a sixth positioning hole (6-2-1) used for being connected with a sixth connecting hole in the front upper layer longitudinal plate I (B-4) or the front upper layer longitudinal plate III (D-3) is processed in the first supporting cushion block (6-2).

4. The wind source system frame welding tool of claim 1, wherein: the C-shaped clamp assembly comprises a supporting assembly used for supporting a rear upper layer longitudinal plate I (B-5), the supporting assembly comprises two second supporting cushion blocks (7-1) fixedly arranged on two rear convex blocks (3-1) of a second base plate (3) respectively and a supporting base plate (7-2) fixedly arranged between the two second supporting cushion blocks (7-1), the supporting base plate (7-2) is provided with C-shaped clamps (7-3) which are arranged oppositely left and right, and an upper cantilever of each C-shaped clamp (7-3) is provided with a clamping bolt (7-4); and the rear upper layer longitudinal plate I (B-5) is arranged between the support component and the butt joint end of the clamping bolt (7-4) and then clamped by screwing the clamping bolt (7-4).

5. The wind source system frame welding tool of claim 4, wherein: and a seventh positioning hole (7-1-1) used for being connected with a seventh connecting hole (B-6) in the rear upper layer longitudinal plate I (B-5) is machined in the second supporting cushion block (7-1).

6. The wind source system frame welding tool of claim 1, wherein: the positioning assembly comprises a third supporting cushion block (8-1) for supporting a longitudinal plate of the inverted L-shaped longitudinal plate (C-4), a supporting longitudinal plate (8-2) for abutting against a vertical plate of the inverted L-shaped longitudinal plate (C-4), a supporting transverse plate (8-3) for abutting against a vertical plate of the L-shaped bottom sheet metal part (E) and a positioning plate (8-4) which is horizontally arranged, wherein the supporting transverse plate (8-3) and the supporting longitudinal plate (8-2) are fixedly arranged at the bottom of the positioning plate (8-4); the transverse plate of the inverted L-shaped longitudinal plate (C-4) is arranged between the third supporting cushion block (8-1) and the front end of the positioning plate (8-4), and the front end of the positioning plate (8-4) is provided with an eighth positioning hole (8-4-1) used for being connected with an eighth connecting hole (C-5) in the transverse plate of the inverted L-shaped longitudinal plate (C-4); the front side surface of the supporting longitudinal plate (8-2) is fixedly provided with a positioning column (8-5) which is used for being connected with a ninth connecting hole (C-6) on the vertical plate of the inverted L-shaped longitudinal plate (C-4); a tenth positioning hole (8-3-1) used for being connected with a tenth connecting hole (E-1) in the vertical plate of the L-shaped bottom sheet metal part (E) is formed in the supporting transverse plate (8-3); the rear upper layer longitudinal plate III (D-4) is abutted against the lower surface of the rear end of the positioning plate (8-4), and the rear end of the positioning plate (8-4) is provided with an eleventh positioning hole (8-4-2) which is used for being connected with an eleventh connecting hole (D-5) in the rear upper layer longitudinal plate III (D-4).

7. The wind source system frame welding tool of claim 1, wherein: and hanging rings (9) are fixedly arranged at four corners of the workbench (1-1).

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