Fixture for improving welding quality of guider and using method

Abstract

The invention provides a clamp for improving welding quality of a guider and a using method, and relates to the technical field of clamps, the clamp comprises a supporting seat, and the supporting seat is used for placing a central annular support; the bottom frame is fixedly connected to the supporting seat, and the bottom frame is arranged below the supporting seat and used for being connected with external equipment or serving as an integral supporting structure of the supporting seat; by arranging the positioning device, the central annular support can be extruded and fixed in multiple directions at the same time, and other components can be fixed together in the clamping process, so that the other components can be placed at the designated position of the central annular support for welding, and the welding difficulty caused by the fact that the central annular support is clamped and fixed is reduced. The situation that normal welding is affected due to the fact that the central annular support is extruded by different forces in multiple directions and deviates due to uneven stress of the central annular support is avoided, the clamping stability and welding convenience of the central annular support are improved, and the welding quality is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of jigs, and in particular to a jig for improving the welding quality of a guide vane and a usage method thereof. Background Art

[0002] The aero-engine guide vane is an important component in an aero-engine, mainly used to guide the airflow through various parts of the engine. Its main function is to optimize the airflow inside the engine to ensure the efficient operation of the engine, reduce turbulence, and maintain stable pressure and temperature. The aero-engine guide vane is usually composed of multiple components welded together. These components may be cut, formed, processed during the design and manufacturing process, and connected by welding to form the final guide vane assembly. Therefore, before welding, the various components of the guide vane need to be accurately docked and fixed with a jig to ensure that their positions do not shift during the welding process.

[0003] When the existing guide vane welding jig is in use, the central annular bracket is placed in the support seat, and then by turning multiple screws to push multiple clamping blocks closer to each other, the central annular bracket is squeezed by the clamping blocks in multiple directions to obtain a fixed position. Subsequently, multiple vanes are welded to the central annular bracket to form a complete guide vane. However, when the operator clamps and fixes the central annular bracket through multiple clamping blocks, it is necessary to adjust and move the clamping blocks individually, which may cause the multiple clamping blocks to squeeze the central annular bracket with different forces, resulting in uneven stress on the central annular bracket, causing its position to shift and affecting the welding quality of the guide vane. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that when the operator clamps and fixes the central annular bracket through multiple clamping blocks, it is necessary to adjust and move the clamping blocks individually, which may cause the multiple clamping blocks to squeeze the central annular bracket at different times and positions, resulting in uneven stress on the central annular bracket, causing its position to shift and affecting the welding quality of the guide vane.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a jig for improving the welding quality of a guide vane and a usage method thereof, including: a support seat for placing the central annular bracket; a chassis fixedly connected to the support seat, where the chassis is located below the support seat and is used to connect to external equipment or serve as the overall support structure of the support seat; a positioning device provided on the support seat, where the positioning device is arranged around the support seat to clamp and fix the central annular bracket placed inside the support seat.

[0006] Preferably, the positioning device includes: an L-shaped rod fixedly connected to the support base, with a cross-shaped hole formed in the L-shaped rod; an L-shaped clamp block slidably mounted on the L-shaped rod through a sliding rod, where the cross-section of the sliding rod is cross-shaped, and a spring is fixedly connected between the sliding rod and the L-shaped rod for resetting the sliding rod; a threaded rod fixedly connected between the support base and the chassis; a connecting ring sleeved on the threaded rod, with a rope fixedly connected between the connecting ring and the sliding rod, a snap ring fixedly connected to one side of the connecting ring and sleeved on the surface of the threaded rod; a threaded hole ring, the inner wall of which is threadedly connected to the surface of the threaded rod; a sleeve fixedly connected to the threaded hole ring, the inner wall of the sleeve being larger than the surface of the threaded rod, and the snap ring is placed inside the sleeve to limit the connecting ring, and the cross-sections of the sleeve and the connecting ring are both L-shaped.

[0007] The effects achieved by the above components are as follows: By setting the positioning device, first place the central annular bracket on the support base, and then manually rotate the threaded hole ring so that the threaded hole ring moves along the surface of the threaded rod away from the support base. During the movement of the threaded hole ring, it pulls the snap ring through the sleeve, and during the movement of the snap ring, it drives the connecting ring to move along the surface of the threaded rod. During the movement of the connecting ring, it pulls multiple ropes to move, and multiple ropes respectively pull multiple sliding rods to move inward along the inside of multiple L-shaped rods towards the inside of the support base, causing multiple sliding rods to push multiple L-shaped clamp blocks to move closer to each other simultaneously. When multiple L-shaped clamp blocks move to the position where they squeeze the surface of the central annular bracket simultaneously, multiple L-shaped clamp blocks clamp the central annular bracket from multiple directions simultaneously, thereby achieving the clamping and positioning of the central annular bracket, reducing the situation where multiple clamp blocks squeeze the central annular bracket with different forces, resulting in uneven force on the central annular bracket and causing its position to shift, affecting the normal welding of the central annular bracket, improving the clamping stability and convenience of the central annular bracket, and further improving the welding quality.

[0008] Preferably, the positioning device further includes: a roller shaft frame fixedly connected to the support base and the L-shaped rod respectively, with the rope placed between two rollers inside the roller shaft frame for limiting, and the roller shaft is made of metal and has a smooth surface.

[0009] The effects achieved by the above components are as follows: By setting the roller shaft frame, the roller shaft frame can support and limit the internal rope, so that the rope does not contact the edge position of the support base during the process of being pulled by the connecting ring, avoiding the situation that the rope is severely worn at the edge position of the support base during the movement, affecting the service life of the rope.

[0010] Preferably, a plurality of operating rods are fixedly connected to the surface of the threaded hole ring, and the plurality of operating rods are arranged at equal distances, with the end of the operating rod away from the threaded hole ring being larger.

[0011] The effect achieved by the above components is: by setting the operating rod, the operating rod can provide a fulcrum for personnel to manually rotate the screw hole ring, so that personnel can drive the screw hole ring to rotate by manually rotating the operating rod, thereby improving the convenience and stability of manually rotating the screw hole ring.

[0012] Preferably, the positioning device also includes: a screw hole plate, which is fixedly connected to the inner side of the L-shaped clamp block, wherein the inner wall of the screw hole plate is threadedly connected to a screw rod; a slot plate, which is rotatably connected to the screw rod via a bearing, and a porous rod is fixedly connected to the side of the slot plate away from the L-shaped clamp block, wherein the cross-section of the inner wall of the slot of the slot plate is T-shaped; a flat plate clamp block, wherein the flat frame block is sleeved on the porous rod, wherein the inner wall of the flat plate clamp block is threadedly connected to a bolt, wherein the bolt is adjusted and fixed to the flat plate clamp block by being screwed into any hole of the flat plate clamp block and the porous rod.

[0013] The effect achieved by the above components is: by setting the flat frame block, when it is necessary to clamp and fix other welding components, manually rotate the screw rod so that the screw rod moves up and down along the inside of the screw hole plate, so that the screw rod drives the slot plate to move up and down, and the slot plate drives the flat plate clamp block to move up and down, until the flat plate clamp block moves to a position that matches the height of the component and stops rotating the screw, at this time manually move the flat plate clamp block along the surface of the porous rod away from the L-shaped clamp block, when the flat plate clamp block moves to a position that matches the size of the component, the inner wall of the hole on the flat plate clamp block coincides with the inner wall of any hole on the porous rod, at this time manually screw the bolt into the flat plate clamp block and the inside of the porous rod to align The plate clamp block is fixed to complete the adjustment of the size of the component corresponding to the flat plate clamp block. At this time, personnel can place other components at the designated position on the central annular bracket. When the L-shaped clamp block moves, it drives the flat plate clamp block to move, so that multiple L-shaped clamp blocks clamp and fix the central annular bracket, and multiple flat plate clamp blocks are close to each other to clamp and fix other welding components. At the same time, other components can be placed between the L-shaped clamp block and the flat plate clamp block, and the flat plate clamp block is driven by a screw to move up and down to clamp and fix the components, so as to achieve the clamping and fixation of other components, so that they can be quickly placed at the designated position of the central annular bracket for welding, thereby improving the welding convenience of the guide assembly by personnel.

[0014] Preferably, a T-shaped block is fixedly connected to the inner side of the L-shaped clamp block, wherein the T-shaped block is placed inside the slot plate to limit the position thereof.

[0015] The effect achieved by the above components is: by setting the T-block, the T-block can be placed inside the slot plate to limit and reinforce it, thereby reducing the shaking or deviation of the slot plate during use, affecting the stability of the flat plate clamp, and causing the flat plate clamp to fail to clamp.

[0016] Preferably, the positioning device further includes: anti-slip patterns, which are respectively fixedly connected to the mutually adjacent sides of the L-shaped clamping block and the flat clamping block, and the anti-slip patterns are composed of multiple strip-shaped aluminum alloys.

[0017] The effects achieved by the above components are as follows: By setting the anti-slip strips, the friction between the flat clamping block, the L-shaped clamping block and the surface of the welded component can be increased, the situation of sliding during the clamping of the welded component can be reduced, and the clamping stability of the welded component can be further improved.

[0018] Preferably, a plurality of cylindrical blocks are fixedly connected to the sides of the L-shaped clamping block and the flat clamping block close to the support seat, and the cylindrical blocks are carbon composite materials.

[0019] The effects achieved by the above components are as follows: By setting the cylindrical blocks, the friction and the degree of fit between the L-shaped clamping block, the flat clamping block and the surface of the component can be increased, the situation of the component sliding during the clamping process can be reduced, and at the same time, the extrusion wear caused by the L-shaped clamping block and the flat clamping block to the surface of the component can be reduced.

[0020] A method for using a fixture to improve the welding quality of a guide, using the fixture for improving the welding quality of a guide, includes the following steps:

[0021] S1: Place the central annular bracket steadily in the center of the support seat to ensure that the axis of the bracket coincides with the axis of the support seat;

[0022] S2: Manually rotate the screw hole ring clockwise so that it moves away from the support seat along the threaded rod;

[0023] S3: Visually check or gently shake the bracket to confirm that there is no gap and no shaking between the L-shaped clamping block and the bracket;

[0024] S4: Manually rotate the screw rod to drive the groove plate and the flat clamping block to lift and lower, and stop when it is flush with the height of the component;

[0025] S5: Slide the flat clamping block along the porous rod until its holes are aligned with the corresponding holes of the porous rod;

[0026] S6: Screw the bolt into the hole where the flat clamping block coincides with the porous rod and tighten it;

[0027] S7: Place the component at the designated position on the bracket, repeat the above steps, and drive the flat clamping block to clamp synchronously through the L-shaped clamping block;

[0028] S8: Apply force evenly when rotating the screw hole ring and the screw rod to avoid over-tightening;

[0029] S9: Confirm that the size of the clamped component is within the adjustment range of the L-shaped clamping block and the flat clamping block to avoid forced operation;

[0030] S10: Keep away from the clamping area during operation. After fixation, check whether the bolts and screw hole rings are tightened to prevent loosening.

[0031] The beneficial effects of the present invention are as follows:

[0032] By setting the positioning device, the central annular bracket can be squeezed and fixed simultaneously in multiple directions, and other components can be fixed together during the clamping process, enabling other components to be placed at the designated position of the central annular bracket for welding. This reduces the situation where the central annular bracket is squeezed by different forces in multiple directions during clamping and fixation, resulting in uneven stress on the central annular bracket and causing deviation, which affects normal welding. It improves the clamping stability of the central annular bracket and the welding convenience, and further improves the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention will be further described below in conjunction with the drawings and embodiments.

[0034] Figure 1 FIG.

[0035] Figure 2 is a three-dimensional structural schematic diagram of a fixture and a using method for improving the welding quality of a guide device proposed by the present invention;

[0036] Figure 3 is a three-dimensional structural schematic diagram of an L-shaped rod in a fixture and a using method for improving the welding quality of a guide device proposed by the present invention; Figure 1 is a partial three-dimensional structural schematic diagram of

[0037] Figure 4 is a partial cross-sectional view of a sleeve in a fixture and a using method for improving the welding quality of a guide device proposed by the present invention;

[0038] Figure 5 is a partial three-dimensional structural schematic diagram of an L-shaped clamping block in a fixture and a using method for improving the welding quality of a guide device proposed by the present invention;

[0039] Figure 6 is a partial three-dimensional structural schematic diagram of a T-shaped block in a fixture and a using method for improving the welding quality of a guide device proposed by the present invention;

[0040] Figure 7 is a partial three-dimensional structural schematic diagram of a flat clamping block in a fixture and a using method for improving the welding quality of a guide device proposed by the present invention.

[0041] Legend: 1. Chassis; 2. Support seat; 3. Positioning device; 31. L-shaped rod; 32. Roller shaft frame; 33. Threaded rod; 34. Connecting ring; 35. Snap ring; 36. Sleeve; 37. Threaded hole ring; 38. Operating rod; 39. Slide bar; 310. Spring; 311. L-shaped clamping block; 312. Cylindrical block; 313. Threaded hole plate; 314. T-shaped block; 315. Screw; 316. Grooved plate; 317. Porous rod; 318. Flat clamping block; 319. Bolt; 320. Anti-slip pattern; 321. Rope. Detailed implementation

[0042] Now, the present invention will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present invention in a schematic manner, so they only show the components related to the present invention.

[0043] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] Figures 1-7 A fixture and its usage method for improving the welding quality of a guide are shown, including: a support seat 2 for placing a central annular bracket; a chassis 1 fixedly connected to the support seat 2, where the chassis 1 is located below the support seat 2 and is used to connect to external equipment or serve as the overall support structure of the support seat 2; a positioning device 3 provided on the support seat 2, where the positioning device 3 is arranged around the support seat 2 to clamp and fix the central annular bracket placed inside the support seat 2.

[0045] Figures 2-6The positioning device 3 shown includes: an L-shaped rod 31, which is fixedly connected to the support base 2, and a cross-shaped hole is provided on the L-shaped rod 31; an L-shaped clamp 311, which is slidably mounted on the L-shaped rod 31 through a slide rod 39. The cross-section of the slide rod 39 is cross-shaped. A spring 310 is fixedly connected between the slide rod 39 and the L-shaped rod 31, and the spring 310 is used to reset the slide rod 39; a threaded rod 33, which is fixedly connected between the support base 2 and the chassis 1; a connecting ring 34, which is sleeved on the threaded rod 33. A rope 321 is fixedly connected between the connecting ring 34 and the slide rod 39. A snap ring 35 is fixedly connected to one side of the connecting ring 34, and the snap ring 35 is sleeved on the surface of the threaded rod 33; a threaded hole ring 37, the inner wall of which is threadedly connected to the surface of the threaded rod 33; a sleeve 36, which is fixedly connected to the threaded hole ring 37. The inner wall of the sleeve 36 is larger than the surface of the threaded rod 33. The snap ring 35 is placed inside the sleeve 36 to limit the connecting ring 34. The cross-sections of the sleeve 36 and the connecting ring 34 are both L-shaped. By setting the positioning device 3, first place the central annular bracket on the support base 2, and then manually rotate the threaded hole ring 37, so that the threaded hole ring 37 moves along the surface of the threaded rod 33 away from the support base 2. During the movement of the threaded hole ring 37, the snap ring 35 is pulled by the sleeve 36 to move. During the movement of the snap ring 35, the connecting ring 34 is driven to move along the surface of the threaded rod 33. During the movement of the connecting ring 34, multiple ropes 321 are pulled to move. The multiple ropes 321 respectively pull the multiple slide rods 39 to move inward along the inside of the multiple L-shaped rods 31 towards the inside of the support base 2. The multiple slide rods 39 push the multiple L-shaped clamps 311 to move closer to each other simultaneously. When the multiple L-shaped clamps 311 simultaneously move to the position where they squeeze the surface of the central annular bracket, the multiple L-shaped clamps 311 clamp the central annular bracket from multiple directions simultaneously, thereby achieving the clamping and positioning of the central annular bracket, reducing the situation that multiple clamps squeeze the central annular bracket with different forces, resulting in uneven force on the central annular bracket and causing the position to shift, affecting the normal welding of the central annular bracket, improving the clamping stability and convenience of the central annular bracket, and further improving the welding quality.

[0046] Figures 3-6The positioning device 3 shown also includes: a roller frame 32, wherein the roller frame 32 is respectively fixed to the support seat 2 and the L-shaped rod 31, wherein the rope 321 is placed between the two roller shafts inside the roller frame 32 for limiting, wherein the roller shaft is made of metal and has a smooth surface. By setting the roller frame 32, the roller frame 32 can support and limit the internal rope 321, so that the rope 321 does not contact the edge position of the support seat 2 during the process of being pulled by the connecting ring 34, thereby avoiding the rope 321 from causing large wear and tear on the edge position of the support seat 2 during the movement, thereby affecting the service life of the rope 321. A plurality of operating rods 38 are fixedly connected to the surface of the screw hole ring 37, and the plurality of operating rods 38 are arranged at equal distances, wherein the end of the operating rod 38 away from the screw hole ring 37 is larger. By setting the operating rod 38, the operating rod 38 can provide a fulcrum for a person to manually rotate the screw hole ring 37, so that the person can drive the screw hole ring 37 to rotate by manually rotating the operating rod 38, thereby improving the convenience and stability of manually rotating the screw hole ring 37.

[0047] Figure 5 , Figure 6 and Figure 7The positioning device 3 shown also includes: a screw hole plate 313, which is fixedly connected to the inner side of the L-shaped clamp 311, and a screw 315 is threadedly connected to the inner wall of the screw hole plate 313; a groove plate 316, which is rotatably connected to the screw 315 through a bearing, and a porous rod 317 is fixedly connected to the side of the groove plate 316 away from the L-shaped clamp 311, and the cross-section of the inner wall of the groove of the groove plate 316 is T-shaped; a flat clamp 318, wherein the flat clamp is sleeved on the porous rod 317, and a bolt 319 is threadedly connected to the inner wall of the flat clamp 318, and the bolt 319 is adjusted and fixed to the flat clamp 318 by screwing into any hole inside the flat clamp 318 and the porous rod 317. By setting the flat clamp, when it is necessary to clamp and fix other welding parts, manually rotate the screw 315 to make the screw 315 move up and down inside the screw hole plate 313, so that the screw 315 drives the groove plate 316 to move up and down, so that the groove plate 316 drives the flat clamp 318 to move up and down until the flat clamp 318 moves to a position adapted to the height of the part, then stop rotating the screw 315. At this time, manually move the flat clamp 318 along the surface of the porous rod 317 in the direction away from the L-shaped clamp 311. When the flat clamp 318 moves to a position adapted to the size of the part, make the inner wall of the hole on the flat clamp 318 coincide with the inner wall of any hole on the porous rod 317. At this time, manually screw the bolt 319 into the flat clamp 318 and the porous rod 317 to fix the flat clamp 318, thereby completing the adjustment of the flat clamp 318 corresponding to the part size. At this time, the operator can place other parts at the designated position on the central annular bracket. When the L-shaped clamp 311 moves, it drives the flat clamp 318 to move, so that multiple L-shaped clamps 311 clamp and fix the central annular bracket, and multiple flat clamps 318 move closer to each other to clamp and fix other welding parts. At the same time, other parts can be placed between the L-shaped clamp 311 and the flat clamp 318, and the screw 315 is used to drive the flat clamp 318 to move up and down to clamp and fix the part, so as to clamp and fix other parts, so that they can be quickly placed at the designated position on the central annular bracket for welding, improving the welding convenience of the operator for the guide component.

[0048] Figure 5 , Figure 6 and Figure 7An inner side of the shown L-shaped clamping block 311 is fixedly connected with a T-shaped block 314. The T-shaped block 314 is placed inside a groove plate 316 to limit the groove plate 316. By providing the T-shaped block 314, the T-shaped block 314 can be placed inside the groove plate 316 to limit and reinforce the groove plate 316, reducing the occurrence of shaking or deviation of the groove plate 316 during use, which affects the use stability of the flat clamping block 318 and causes the situation where the flat clamping block 318 fails to clamp. The positioning device 3 further includes: anti-slip lines 320. The anti-slip lines 320 are respectively fixedly connected to the mutually approaching sides of the L-shaped clamping block 311 and the flat clamping block 318. The anti-slip lines 320 are composed of multiple strip-shaped aluminum alloys. By providing the anti-slip strips, the friction between the flat clamping block 318, the L-shaped clamping block 311 and the surface of the welded component can be increased, reducing the occurrence of sliding during the clamping of the welded component, and further improving the clamping stability of the welded component. A plurality of cylindrical blocks 312 are fixedly connected to the sides of the L-shaped clamping block 311 and the flat clamping block 318 close to the support base 2. The cylindrical blocks 312 are made of carbon composite materials. By providing the cylindrical blocks 312, the friction and the degree of fit between the L-shaped clamping block 311, the flat clamping block 318 and the surface of the component can be increased, reducing the occurrence of sliding of the component during the clamping process, and at the same time reducing the extrusion wear caused by the L-shaped clamping block 311 and the flat clamping block 318 to the surface of the component.

[0049] Working principle: First, place the central annular bracket on the support base 2. Then manually rotate the threaded hole ring 37, so that the threaded hole ring 37 moves along the surface of the threaded rod 33 in a direction away from the support base 2. During the movement of the threaded hole ring 37, the sleeve 36 is used to pull the clamping ring 35 to move. During the movement of the clamping ring 35, the connecting ring 34 is driven to move along the surface of the threaded rod 33. During the movement of the connecting ring 34, a plurality of ropes 321 are pulled to move. A plurality of ropes 321 respectively pull a plurality of sliding rods 39 to move along the inside of a plurality of L-shaped rods 31 in a direction close to the inside of the support base 2. A plurality of sliding rods 39 push a plurality of L-shaped clamping blocks 311 to move closer to each other simultaneously. When a plurality of L-shaped clamping blocks 311 simultaneously move to the position where they squeeze the surface of the central annular bracket, a plurality of L-shaped clamping blocks 311 clamp the central annular bracket from a plurality of directions simultaneously, thereby achieving the clamping and positioning of the central annular bracket.

[0050] When it is necessary to clamp other welding components together, manually rotate the screw 315 so that the screw 315 moves up and down inside the screw hole plate 313, causing the screw 315 to drive the groove plate 316 to move up and down, and the groove plate 316 to drive the flat clamping block 318 to move up and down. Stop rotating the screw 315 until the flat clamping block 318 moves to a position adapted to the height of the component. At this time, manually move the flat clamping block 318 along the surface of the porous rod 317 in a direction away from the L-shaped clamping block 311. When the flat clamping block 318 moves to a position adapted to the size of the component, align the inner wall of the hole on the flat clamping block 318 with the inner wall of any hole on the porous rod 317. Then, manually screw the bolt 319 into the flat clamping block 318 and the porous rod 317 to fix the flat clamping block 318, thus completing the adjustment of the flat clamping block 318 corresponding to the component size. At this time, the operator can place other components at the designated position on the central annular bracket. When the L-shaped clamping block 311 moves, it drives the flat clamping block 318 to move, so that multiple L-shaped clamping blocks 311 clamp and fix the central annular bracket, and multiple flat clamping blocks 318 move closer to each other to clamp and fix other welding components. At the same time, other components can also be placed between the L-shaped clamping block 311 and the flat clamping block 318, and the screw 315 is used to drive the flat clamping block 318 to move up and down to clamp and fix the component, achieving the clamping and fixing of other components.

[0051] Inspired by the above ideal embodiments of the present invention, through the above description, relevant staff can make various changes and modifications within the scope not deviating from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A fixture for improving the welding quality of a guide, characterized in that: Including: A support base (2) for placing a central annular bracket; A chassis (1) fixedly connected to the support base (2), where the chassis (1) is located below the support base (2) and is used to connect to external devices or serve as the overall support structure of the support base (2); A positioning device (3) provided on the support base (2), where the positioning device (3) is arranged around the support base (2) to clamp and fix the central annular bracket placed inside the support base (2).

2. The fixture and the using method for improving the welding quality of a guide device according to claim 1, characterized in that: The positioning device (3) includes: an L-shaped rod (31) fixedly connected to the support base (2), with a hole having a cross-section in the shape of a cross formed on the L-shaped rod (31); An L-shaped clamping block (311) slidably mounted on the L-shaped rod (31) through a slide rod (39), where the cross-section of the slide rod (39) is in the shape of a cross, and a spring (310) is fixedly connected between the slide rod (39) and the L-shaped rod (31), and the spring (310) is used to reset the slide rod (39); A threaded rod (33) fixedly connected between the support base (2) and the chassis (1); A connecting ring (34) sleeved on the threaded rod (33), with a rope (321) fixedly connected between the connecting ring (34) and the slide rod (39). A snap ring (35) is fixedly connected to one side of the connecting ring (34), and the snap ring (35) is sleeved on the surface of the threaded rod (33); A threaded hole ring (37) whose inner wall is threadedly connected to the surface of the threaded rod (33); A sleeve (36) fixedly connected to the threaded hole ring (37), where the inner wall of the sleeve (36) is larger than the surface of the threaded rod (33). The snap ring (35) is placed inside the sleeve (36) to limit the connecting ring (34), and the cross-sections of the sleeve (36) and the connecting ring (34) are both L-shaped.

3. The fixture and the using method for improving the welding quality of the guide vane according to claim 2, characterized in that: The positioning device (3) further includes: a roller shaft frame (32) fixedly connected to the support base (2) and the L-shaped rod (31) respectively. The rope (321) is limited between two rollers inside the roller shaft frame (32), and the rollers are made of metal and have a smooth surface.

4. A fixture and method of use for improving the welding quality of a guide, characterized in that: A plurality of operating rods (38) are fixedly connected to the surface of the threaded hole ring (37), and the plurality of operating rods (38) are arranged at equal distances, with the end of the operating rod (38) away from the threaded hole ring (37) being larger.

5. A fixture for improving the welding quality of a guide vane and a using method according to claim 2, characterized in that: The positioning device (3) further includes: a threaded hole plate (313) fixedly connected to the inner side of the L-shaped clamping block (311), and a screw rod (315) is threadedly connected to the inner wall of the threaded hole plate (313); A groove plate (316) is rotatably connected to the screw rod (315) through a bearing. A porous rod (317) is fixedly connected to the side of the groove plate (316) away from the L-shaped clamping block (311), and the cross-section of the groove inner wall of the groove plate (316) is T-shaped; Flat clamping block (318), wherein the flat frame block is sleeved on the porous rod (317), and a bolt (319) is threadedly connected to the inner wall of the flat clamping block (318). The flat clamping block (318) is adjusted and fixed by screwing the bolt (319) into any hole of the flat clamping block (318) and the porous rod (317).

6. A fixture for improving the welding quality of a guide vane and a using method according to claim 5, characterized in that: A T-shaped block (314) is fixedly connected to the inner side of the L-shaped clamping block (311), and the T-shaped block (314) is placed inside the groove plate (316) to limit it.

7. A fixture for improving the welding quality of a guide vane and a method of using the same according to claim 5, characterized in that: The positioning device (3) further includes: anti-slip patterns (320), and the anti-slip patterns (320) are fixedly connected to the mutually approaching sides of the L-shaped clamping block (311) and the flat clamping block (318) respectively.

8. A fixture and its usage method for improving the welding quality of a guide device according to claim 7, characterized in that: Wherein the anti-slip patterns (320) are composed of multiple strip-shaped aluminum alloys.

9. A fixture for improving the welding quality of a guide vane and a using method according to claim 8, characterized in that: A plurality of cylindrical blocks (312) are fixedly connected to the sides of the L-shaped clamping block (311) and the flat clamping block (318) close to the support base (2).

10. A method of using a fixture for improving the welding quality of a guide, characterized in that: Using the fixture for improving the welding quality of the guide device according to any one of claims 1-9, including the following steps: S1: Place the central annular bracket steadily at the center of the support base (2) to ensure that the axis of the bracket coincides with the axis of the support base; S2: Manually rotate the screw hole ring (37) clockwise to move it along the threaded rod (33) away from the support base (2); S3: Visually check or gently shake the bracket to confirm that there is no gap or shaking between the L-shaped clamping block (311) and the bracket; S4: Manually rotate the screw (315) to drive the groove plate (316) and the flat clamping block (318) to lift and lower, and stop when it is flush with the height of the component; S5: Slide the flat clamping block (318) along the porous rod (317) until its hole is aligned with the corresponding hole of the porous rod; S6: Screw the bolt (319) into the hole where the flat clamping block (318) coincides with the porous rod (317) and tighten it; S7: Place the component at the designated position on the bracket, repeat the above steps, and synchronously clamp the flat clamping block through the L-shaped clamping block; S8: Apply force evenly when rotating the screw hole ring (37) and the screw (315) to avoid over-tightening; S9: Confirm that the size of the clamped component is within the adjustment range of the L-shaped clamping block and the flat clamping block to avoid forced operation; S10: Keep away from the clamping area during operation, and check whether the bolt (319) and the screw hole ring (37) are locked after fixing to prevent loosening.

Images