Adjustable repairing device for variable cross-section pipe cavity filler block

Abstract

The invention provides an adjustable repairing device for a variable cross-section pipe cavity filler block, which comprises a molded surface inspection template 1, an upper molded block 2, a lower molded block 3, a locking screw 4 and a bent handle bolt 5, and is characterized in that the molded surface inspection template 1 is of a plate-shaped structure, and the upper surface and the lower surface of the molded surface inspection template 1 are in mirror symmetry; reinforcing ribs 1-1 are arranged in the middle of the upper surface and the middle of the lower surface corresponding to a girder inner cavity sealing area respectively, six holes 1-2 are formed in the middle of the sample plate corresponding to girder stud holes, and the side face of each hole is in a rod shape. The upper and lower surfaces are consistent with a girder inner cavity sealing area in theoretical shape; the upper mold block 2 is of a hollow blocky structure, and a pointed-end rod-shaped boss 2-1 is arranged in an inner cavity of the upper mold block 2; three step-shaped through holes 2-2 are formed in the upper surface, the large-diameter sections of the step-shaped through holes 2-2 face the upper surface, and the small-diameter sections of the step-shaped through holes 2-2 face the lower surface; two through holes 2-3 are formed in the vertical face of the outer end of the upper mold block 2, and the nominal diameter of the through holes 2-3 is consistent with that of the two holes in the outer end of the variable cross-section pipe cavity filler block; two through holes 2-4 are formed in the vertical face of the inner end of the upper mold block 2, and the nominal diameter of the through holes 2-4 is consistent with that of two holes in the inner end of the variable cross-section pipe cavity filler block.

Description

Technical Field

[0001] The present application relates to the field of adhesive sealing, and in particular to an adjustable repair device for a variable-section tube cavity liner. Background Art

[0002] As attached Figure 1 As shown in the figure, the main blade of a certain series of aircraft (hereinafter referred to as the main blade) uses a tubular aluminum alloy beam (hereinafter referred to as the beam) as the main load-bearing component, and the root of the main blade is connected to the main hub with a steel flange end joint. The joint and the beam are connected with screws and nuts.

[0003] As attached Figure 2 As shown in the figure, in order to prevent the beam from being deformed by the bolt tightening pressure, a variable-section pipe cavity liner is installed in the bolt connection area of ​​the beam inner cavity to support the bolt tightening pressure on the beam. Therefore, the variable-section pipe cavity liner is required to be closely matched with the inner cavity profile of the beam to reduce the deformation of the beam under the bolt tightening force.

[0004] As attached Figure 3 As shown, the boundary between the mating surface of the variable-section tubular cavity liner and the inner cavity of the beam is coated with sealant to achieve a sealing effect to prevent leakage of nitrogen filled in the inner cavity of the beam, thereby maintaining a certain air pressure in the inner cavity of the beam, and ultimately realizing the function of using a pressure signal device to monitor the generation of through cracks in the beam.

[0005] As attached Figure 4 As shown in the figure, since the beam is formed by extrusion, the cross-sectional dimensions of the inner cavity vary to a certain extent, so the profile area of ​​the variable-section pipe cavity liner block that matches it needs to have a margin. As a result, before assembling the variable-section pipe cavity liner block, the profile area of ​​the variable-section pipe cavity liner block needs to be manually filed to remove the excess.

[0006] When using the existing technology, due to the lack of a repair benchmark, the only way to repair it is to rely on visual inspection and compare the variable-section pipe cavity liner with the inner cavity of the beam. Due to the small space in the inner cavity of the beam, it is impossible to observe the overall coordination between the variable-section pipe cavity liner and the inner cavity of the beam, which leads to different sizes of coordination gaps between the variable-section pipe cavity liner and the inner cavity of the beam, and excessive setback in local areas, resulting in excessive coordination gaps. Summary of the invention

[0007] The present application provides an adjustable repair device for a variable-section tubular cavity liner, which solves the problem of different sizes of matching gaps between the variable-section tubular cavity liner and the inner cavity of the beam.

[0008] Technical solution: A variable cross-section pipe cavity liner adjustment and repair device, including a profile inspection template 1, an upper profile block 2, a lower profile block 3, a locking screw 4, and a bent handle latch 5, wherein:

[0009] The profile inspection sample 1 is a plate-like structure, and its upper and lower surfaces are mirror-symmetrical. The middle of the upper and lower surfaces are respectively provided with reinforcing ribs 1-1 corresponding to the sealing area of ​​the inner cavity of the beam, and 6 holes 1-2 are opened in the middle of the sample corresponding to the screw pile holes of the beam. Its side surface is rod-shaped; the upper and lower surfaces are respectively consistent with the theoretical appearance of the sealing area of ​​the inner cavity of the beam;

[0010] The upper block 2 is a hollow block structure, and the inner cavity of the upper block 2 has a pointed rod-shaped boss 2-1; 3 stepped through holes 2-2 are opened from the upper surface, and the large diameter section of the stepped through hole 2-2 faces the upper surface, and the small diameter section faces the lower surface; 2 through holes 2-3 are opened on the outer end elevation of the upper block 2, and the nominal diameter of the through hole 2-3 is consistent with the 2 holes on the outer end of the variable-section tube cavity liner; 2 through holes 2-4 are opened on the inner end elevation of the upper block 2, and the nominal diameter of the through hole 2-4 is consistent with the 2 holes on the inner end of the variable-section tube cavity liner; 2 stop holes 2-5 are opened at the root of the pointed rod-shaped boss 2-1 in the inner cavity of the upper block 2; the upper surface of the upper block 2 is a curved surface, and a corresponding shape groove 2-6 is opened in the middle of the upper surface corresponding to the inner cavity reinforcement rib of the beam, and the lower surface of the upper block 2 is a plane;

[0011] The lower mold block 3 is a hollow block structure, and the inner cavity of the lower mold block 3 has a pointed rod-shaped boss 3-1; 3 threaded through holes 3-2 are opened; 2 through holes 3-3 are opened on the outer end vertical surface of the lower mold block 3, and the nominal diameter of the through hole 3-3 is consistent with the 2 holes on the outer end of the variable-section tube cavity liner block; 2 through holes 3-4 are opened on the inner end vertical surface of the lower mold block 3, and the nominal diameter of the through hole 3-4 is consistent with the 2 holes on the inner end of the variable-section tube cavity liner block; 2 stop holes 3-5 are opened at the root of the pointed rod-shaped boss 3-1 in the inner cavity of the lower mold block 3; the lower surface of the lower mold block 3 is a curved surface, and the middle part of the lower surface is opened with a corresponding shape groove 3-6 corresponding to the inner cavity reinforcement rib of the beam, and the upper surface of the lower mold block 3 is a plane;

[0012] The locking screw 4 passes through the upper mold block 2 and is screwed into the threaded hole opened in the lower mold block 3.

[0013] Specifically, the upper mold block 2 and the lower mold block 3 are matched in plane, and the three stepped holes 2-2 opened on the upper mold block 2 are aligned with the three threaded holes 3-2 opened on the lower mold block 3 to form a mold block assembly; at the same time, the inner cavities of the upper mold block 2 and the lower mold block 3 are combined to form a mold block inner cavity for placing a variable-section pipe cavity liner; a feeler gauge is inserted into the gap formed by the matching surfaces of the upper mold block 2 and the lower mold block 3.

[0014] Specifically, the surrounding facades of the profile inspection template 1 are consistent with the surrounding outer facades of the upper block 2 and the lower block 3, and the upper surface of the profile inspection template 1 matches the upper surface of the upper block 2; the lower surface of the profile inspection template 1 matches the lower surface of the lower block 3; after the profiles are matched, the profile inspection template 1 slides along the extension direction of the reinforcement 1-1.

[0015] Specifically, the vertical surfaces of the upper block 2 and the lower block 3 are aligned on all sides, and the groove 3-6 in the middle of the lower surface of the lower block 3 cooperates with the reinforcement ribs of the inner cavity of the beam to ensure the placement direction of the upper block 2 and the lower block 3; in the process of pushing the upper 2 and lower blocks 3 into the inner cavity of the beam, their placement direction is always kept the same as the placement direction of the variable-section tubular cavity liner, and at the same time, the upper 2 and lower blocks 3 are placed in the sealing position of the variable-section tubular cavity liner as needed.

[0016] Specifically, after placing the upper mold block 2 and the lower mold block 3 in the sealing position, insert a feeler gauge steel sheet into the gap between the upper mold block 2 and the lower mold block 3 until the upper surface of the upper mold block 2 fits with the inner surface of the beam and a feeler gauge steel sheet with a larger total thickness cannot be inserted, and measure the total thickness of the feeler gauge steel sheet.

[0017] Specifically, the upper mold block 2 and the lower mold block 3 are taken out from the inner cavity of the beam, and the four sides are aligned. The inner cavity of the upper mold block 2 and the inner cavity of the lower mold block 3 are combined to form the mold block inner cavity, and the variable cross-section tube cavity liner is placed in the liner block inner cavity. During the placement process, when the two through holes 2-3 on the outer end vertical surface of the upper mold block 2 are aligned with the upper two holes opened at the outer end of the variable cross-section tube cavity liner or the two through holes 3-3 on the outer end vertical surface of the lower mold block 3 are aligned with the lower two holes opened at the outer end of the variable cross-section tube cavity liner, the bent handle latch 5 is inserted into the two outer end vertical surfaces of the upper mold block 2. At the same time, the bent handle pin 5 is inserted into the two through holes 2-4 on the inner end vertical surface of the upper mold block 2 and the two upper holes opened at the inner end of the variable cross-section tubular cavity liner or the two through holes 3-3 on the outer end vertical surface of the lower mold block 3 and the two lower holes opened at the outer end of the variable cross-section tubular cavity liner, so as to determine the relative position of the variable cross-section tubular cavity liner and the upper mold block 2 or the lower mold block 3.

[0018] Specifically, the locking screw 4 is passed through the three stepped through holes 2-2 opened in the upper mold block 2 and the three threaded through holes 3-2 opened in the lower mold block 3 to ensure the relative position of the upper mold block 2 and the lower mold block 3 in their mating planes; the locking screw 4 is tightened to lock the upper mold block 2 and the lower mold block 3, and at the same time, the feeler gauge steel sheet inserted in the gap between the mating planes of the upper mold block 2 and the lower mold block 3 is clamped.

[0019] Specifically, the profile inspection template 1 slides along the reinforcement rib, and the profile inspection template 1 is observed from the peripheral interface of the template to see whether there is a gap between the surface of the profile inspection template 1 and the surface of the variable-section tubular cavity liner, or whether there is a partial contact between the surface of the profile inspection template 1 and the surface of the variable-section tubular cavity liner, resulting in the profile inspection template 1 being unable to fit with the upper surface of the upper mold block 2.

[0020] To sum up, the adjustable repair device of a variable-section tubular cavity liner provided in the present application is easy to operate and can repair the profile of the variable-section tubular cavity liner in place at one time, avoiding repeated testing of the variable-section tubular cavity liner placed in the inner cavity of the beam; it greatly improves the matching accuracy of the upper and lower profiles of the variable-section tubular cavity liner and the inner cavity of the beam, improves the sealing effect and the uniformity of the distribution of the supporting force of the variable-section tubular cavity liner on the inner cavity of the beam, and avoids excessive local pressure on the beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the blade root structure;

[0022] Figure 2 It is a schematic diagram of the assembly of the variable cross-section lumen liner;

[0023] Figure 3 It is a schematic diagram of the sealing structure around the variable cross-section lumen liner;

[0024] Figure 4 It is a schematic diagram of the repair of the variable-section pipe cavity liner and the beam;

[0025] Figure 5 A structural diagram of an adjustable repair device for a variable-section lumen liner provided in the present application;

[0026] Figure 6 Schematic diagram of the surface inspection template structure provided for this application;

[0027] Figure 7 A schematic diagram of the upper block structure provided for this application;

[0028] Figure 8 A schematic diagram of the lower block structure provided for this application;

[0029] Fig. 9 Schematic diagram of the upper and lower mold blocks provided in this application being placed into the inner cavity of the beam;

[0030] Fig.10 Schematic diagram of the upper mold block and the lower mold block being matched and the feeler gauge being inserted provided in this application;

[0031] Fig.11 A schematic diagram of the installation and repair of the variable cross-section lumen liner provided in this application;

[0032] Fig.12 A schematic diagram of the profile inspection of the variable cross-section lumen liner provided in this application;

[0033] Among them: 1-surface inspection template, 2-upper mold block, 3-lower mold block, 4-locking screw, 5-bent handle pin. DETAILED DESCRIPTION

[0034] This patent is a repair device and method for variable-section tubular cavity liner blocks, which are applied in the field of adhesive sealing and can meet the appearance repair requirements of variable-section tubular cavity liner blocks within a certain size range, so as to achieve precise matching between the variable-section tubular cavity liner blocks and the tubular cavity, and improve the adhesive sealing effect between the variable-section tubular cavity liner blocks and the inner wall of the tubular cavity.

[0035] Embodiment 1

[0036] like Figure 5 As shown, the present application provides an adjustable repair device for a variable-section lumen liner, comprising a profile inspection template 1, an upper profile block 2, a lower profile block 3, a locking screw 4, and a bent handle latch 5, wherein:

[0037] like Figure 6 As shown, the profile inspection template 1 is a plate-like structure made of aluminum. Its upper and lower surfaces are mirror-symmetrical. Reinforcement ribs 1-1 are set in the middle of the upper and lower surfaces respectively corresponding to the sealing area of ​​the inner cavity of the beam. Six holes 1-2 are opened in the middle of the template corresponding to the screw pile holes of the beam. Its side surface is rod-shaped as shown in FIG. Figure 5 As shown; the upper and lower surfaces are respectively consistent with the theoretical shapes of the sealing area of ​​the inner cavity of the beam.

[0038] like Figure 7 As shown, the upper block 2 is a hollow block structure, made of steel, and has great hardness and strong wear resistance. The inner cavity of the upper block 2 has a pointed rod-shaped boss 2-1; three stepped through holes 2-2 are opened from the upper surface, with the large diameter section of the stepped through hole 2-2 facing the upper surface and the small diameter section facing the lower surface; two through holes 2-3 are opened on the outer end elevation of the upper block 2, and the nominal diameter of the through hole 2-3 is consistent with the two holes at the outer end of the variable cross-section tube cavity liner; two through holes 2-4 are opened on the inner end elevation of the upper block 2, and the nominal diameter of the through hole 2-4 is consistent with the two holes at the inner end of the variable cross-section tube cavity liner; two stop crack holes 2-5 are opened at the root of the pointed rod-shaped boss 2-1 in the inner cavity of the upper block 2; the upper surface of the upper block 2 is a curved surface, and the middle part of the upper surface is opened with a corresponding shape groove 2-6 corresponding to the inner cavity reinforcement rib of the beam, and the lower surface of the upper block 2 is a plane.

[0039] like Figure 8 As shown, the lower block 3 is a hollow block structure, made of steel, and has great hardness and wear resistance. The inner cavity of the lower block 3 has a pointed rod-shaped boss 3-1; 3 threaded through holes 3-2 are opened; 2 through holes 3-3 are opened on the outer end elevation of the lower block 3, and the nominal diameter of the through holes 3-3 is consistent with the 2 holes on the outer end of the variable cross-section tube cavity liner; 2 through holes 3-4 are opened on the inner end elevation of the lower block 3, and the nominal diameter of the through holes 3-4 is consistent with the 2 holes on the inner end of the variable cross-section tube cavity liner; 2 stop crack holes 3-5 are opened at the root of the pointed rod-shaped boss 3-1 in the inner cavity of the lower block 3; the lower surface of the lower block 3 is a curved surface, and the middle part of the lower surface is opened with a corresponding shape groove 3-6 corresponding to the inner cavity reinforcement rib of the beam, and the upper surface of the lower block 3 is a plane.

[0040] like Fig.10As shown, the upper mold block 2 and the lower mold block 3 are plane-matched, and the three stepped holes 2-2 opened on the upper mold block 2 are aligned with the three threaded holes 3-2 opened on the lower mold block 3 to form a mold block assembly; at the same time, the inner cavities of the upper mold block 2 and the lower mold block 3 are combined to form a mold block inner cavity for placing a variable-section pipe cavity liner; a feeler gauge can be inserted into the gap formed by the mating surfaces of the upper mold block 2 and the lower mold block 3;

[0041] The surface inspection template 1 is used during repair inspection and can be attached to the upper surface of the upper mold block 2 or the lower surface of the lower mold block;

[0042] The locking screw 4 can pass through the upper mold block 2 and be screwed into the threaded hole opened in the lower mold block 3;

[0043] Specifically, Fig.12 As shown, the surrounding elevations of the profile inspection template 1 are consistent with the surrounding outer elevations of the upper block 2 and the lower block 3, and the upper surface of the profile inspection template 1 can be matched with the upper surface of the upper block 2; the lower surface of the profile inspection template 1 can be matched with the lower surface of the lower block 3; after the profiles are matched, the profile inspection template 1 can slide along the extension direction of the reinforcement 1-1.

[0044] Specifically, Fig. 9 As shown, the vertical surfaces of the upper block 2 and the lower block 3 can be aligned, and the groove 3-6 in the middle of the lower surface of the lower block 3 can cooperate with the reinforcement ribs of the inner cavity of the beam to ensure the placement direction of the upper block 2 and the lower block 3; the process of pushing the upper 2 and lower blocks 3 into the inner cavity of the beam can always keep their placement direction the same as the placement direction of the variable-section tubular cavity liner, and at the same time, the upper 2 and lower blocks 3 can be placed in the sealing position of the variable-section tubular cavity liner as needed.

[0045] Specifically, Fig.10 As shown, after placing the upper mold block 2 and the lower mold block 3 in the sealing position, a feeler gauge steel sheet of appropriate thickness can be inserted into the gap between the upper mold block 2 and the lower mold block 3 until the upper surface of the upper mold block 2 fits with the inner surface of the beam cavity and a feeler gauge steel sheet with a larger total thickness cannot be inserted. At this time, measure and record the total thickness of the feeler gauge steel sheet.

[0046] Specifically, Fig.11As shown, the upper mold block 2 and the lower mold block 3 are taken out from the inner cavity of the beam, and the surrounding facades can be aligned. The inner cavity of the upper mold block 2 and the inner cavity of the lower mold block 3 are combined to form the mold block inner cavity, and the variable cross-section tube cavity liner block can be placed in the liner block inner cavity. During the placement process, when the two through holes 2-3 on the outer end facade of the upper mold block 2 are aligned with the upper two holes opened at the outer end of the variable cross-section tube cavity liner block or the two through holes 3-3 on the outer end facade of the lower mold block 3 are aligned with the lower two holes opened at the outer end of the variable cross-section tube cavity liner block, the bent handle latch 5 can be inserted into the two through holes 2-3 on the outer end facade of the upper mold block 2. At the same time, the bent handle pin 5 can be inserted into the two through holes 2-4 on the inner end vertical surface of the upper mold block 2 and the two upper holes opened at the inner end of the variable cross-section tubular cavity liner or the two through holes 3-3 on the outer end vertical surface of the lower mold block 3 and the two lower holes opened at the outer end of the variable cross-section tubular cavity liner, so as to determine the relative position of the variable cross-section tubular cavity liner and the upper mold block 2 or the lower mold block 3.

[0047] Specifically, Fig.11 As shown, after the recorded total thickness of the feeler gauge is inserted into the plane matching gap of the upper mold block 2 and the lower mold block 3, it can be ensured that the plane distance between the upper mold block 2 and the lower mold block 3 is consistent when the two are in the inner cavity of the beam.

[0048] Specifically, Fig.11 As shown, passing the locking screw 4 through the three stepped through holes 2-2 opened in the upper mold block 2 and the three threaded through holes 3-2 opened in the lower mold block 3 can ensure the relative position of the upper mold block 2 and the lower mold block 3 in their mating planes; tightening the locking screw 4 can lock the upper mold block 2 and the lower mold block 3, and at the same time clamp the feeler gauge steel sheet inserted in the gap between the mating planes of the upper mold block 2 and the lower mold block 3.

[0049] Specifically, Fig.12 As shown, the profile inspection template 1 can slide along the reinforcing rib, and it can be observed from the peripheral interface of the template whether there is a gap between the surface of the profile inspection template 1 and the surface of the variable-section tubular cavity liner, or whether there is a partial contact between the surface of the profile inspection template 1 and the surface of the variable-section tubular cavity liner, resulting in the profile inspection template 1 being unable to fit with the upper surface of the upper mold block 2. If so, it indicates that there is interference, and the contact area needs to be repaired to eliminate the interference.

[0050] Embodiment 2

[0051] The present application provides an adjustable repair method for a variable-section tubular cavity liner, which is implemented by using the adjustable repair device for a variable-section tubular cavity liner provided by the present application according to the above embodiment. The method includes:

[0052] Step 1: Place the block: Align the inner reinforcement ribs of the beam with the grooves on the upper block 2 and the lower block 3, and then push the block along the reinforcement ribs into the inner cavity of the beam. Fig. 9 ;

[0053] Step 2: Insert the feeler gauge: Align the vertical surfaces of the upper block 2 and the lower block 3, and insert the feeler gauge into the gap between the upper block 2 and the lower block 3 until the upper block 2 and the lower block 3 fit in the inner cavity of the beam respectively. Record the total thickness of the inserted steel sheet. Fig.10 ;

[0054] Step 3: Block assembly: Take out the block and feeler gauge from the inner cavity of the beam, and insert the feeler gauge steel sheet of the thickness described in step 2 into the four corners of the gap between the upper block 2 and the lower block 3, and then tighten the locking screws as shown in the figure. Fig.11 ;

[0055] Step 4: Variable cross-section pipe cavity liner assembly: Place the variable cross-section pipe cavity liner to be repaired into the inner cavity formed by the upper mold block 2 and the lower mold block 3, and insert the bent handle pin 5 so that the pin is inserted into the outer end vertical through hole 2-3 of the upper mold block 2 or the outer end vertical through hole 3-3 of the lower mold block 3. Fig.11 ;

[0056] Step 5: Repair of variable-section pipe cavity liner: Based on the surface of upper block 2 and lower block 3, grind and frustrate the surface of variable-section pipe cavity liner, and remove the excess such as Fig.11 ;

[0057] Step 6: Surface inspection: Fit the surface inspection template 1 with the corresponding surfaces of the upper mold block 2 and the lower mold block 3. Observe from the outer end of the template whether the gap between the upper surface of the surface inspection template 1 and the upper surface of the variable-section tube cavity liner is qualified, or whether the surface of the surface inspection template 1 is partially in contact with the surface of the variable-section tube cavity liner, resulting in the inability of the surface inspection template 1 to fit the upper surface of the upper mold block 2 or the lower surface of the lower mold block 3. If so, it means there is interference, and the contact area needs to be repaired to eliminate the interference. Fig.12 .

[0058] Step 7: Repeat steps 5 and 6 until all interference between the surface inspection template 1 and the upper surface of the upper mold block 2 or the lower surface of the lower mold block 3 is eliminated;

[0059] In summary, the adjustable repair device for a variable-section tubular cavity liner provided by the present application is easy to operate and can repair the profile of the variable-section tubular cavity liner in place at one time, avoiding repeated testing of placing the variable-section tubular cavity liner into the inner cavity of the beam; it greatly improves the matching accuracy between the upper and lower profiles of the variable-section tubular cavity liner and the inner cavity of the beam, improves the sealing effect and the uniformity of the distribution of the supporting force of the variable-section tubular cavity liner on the inner cavity of the beam, and avoids excessive local pressure on the beam. The adjustable repair device for a variable-section tubular cavity liner provided by the present application meets the repair needs of variable-section tubular cavity liner blocks within a certain size range, and greatly reduces the matching gap between the profile of the variable-section tubular cavity liner and the tube cavity at various locations, so as to achieve one-time repair according to the size of the inner cavity of the beam.

Claims

1. A variable cross-section pipe lumen liner adjustment and repair device, characterized in that: It comprises a profile inspection template (1), an upper profile block (2), a lower profile block (3), a locking screw (4), and a bent handle latch (5), wherein: The profile inspection template (1) is a plate-like structure, and its upper and lower surfaces are mirror-symmetrical, and reinforcing ribs (1-1) are arranged in the middle of the upper and lower surfaces respectively corresponding to the beam inner cavity sealing area, and 6 holes (1-2) are opened in the middle of the template corresponding to the beam screw pile hole positions, and its side surface is rod-shaped; the upper and lower surfaces are respectively consistent with the theoretical shape of the beam inner cavity sealing area; The upper mold block (2) is a hollow block structure, and the inner cavity of the upper mold block (2) has a pointed rod-shaped boss (2-1); three stepped through holes (2-2) are opened from the upper surface, and the large diameter section of the stepped through hole (2-2) faces the upper surface, and the small diameter section faces the lower surface; two through holes (2-3) are opened on the outer end vertical surface of the upper mold block (2), and the nominal diameter of the through holes (2-3) is consistent with the two holes at the outer end of the variable cross-section tube cavity liner block; two through holes (2-4) are opened on the inner end vertical surface of the upper mold block (2), and the nominal diameter of the through holes (2-4) is consistent with the two holes at the inner end of the variable cross-section tube cavity liner block; two crack stop holes (2-5) are opened at the root of the pointed rod-shaped boss (2-1) in the inner cavity of the upper mold block (2); the upper surface of the upper mold block (2) is a curved surface, and a corresponding groove (2-6) is opened in the middle of the upper surface corresponding to the inner cavity reinforcement rib of the beam, and the lower surface of the upper mold block (2) is a plane; The lower mold block (3) is a hollow block structure, and the inner cavity of the lower mold block (3) has a pointed rod-shaped boss (3-1); three threaded through holes (3-2) are opened; two through holes (3-3) are opened on the outer end vertical surface of the lower mold block (3), and the nominal diameter of the through holes (3-3) is consistent with the two holes at the outer end of the variable cross-section tube cavity liner block; two through holes (3-4) are opened on the inner end vertical surface of the lower mold block (3), and the nominal diameter of the through holes (3-4) is consistent with the two holes at the inner end of the variable cross-section tube cavity liner block; two crack stop holes (3-5) are opened at the root of the pointed rod-shaped boss (3-1) in the inner cavity of the lower mold block (3); the lower surface of the lower mold block (3) is a curved surface, and a corresponding groove (3-6) is opened in the middle of the lower surface corresponding to the inner cavity reinforcement rib of the beam, and the upper surface of the lower mold block (3) is a plane; The locking screw 4 passes through the upper mold block (2) and is screwed into the threaded hole opened in the lower mold block (3).

2. The adjustment and repair device according to claim 1, characterized in that: The upper mold block (2) and the lower mold block (3) are matched in plane, and the three stepped holes (2-2) opened on the upper mold block (2) and the three threaded holes (3-2) opened on the lower mold block (3) are aligned to form a mold block assembly; at the same time, the inner cavities of the upper mold block (2) and the lower mold block (3) are combined to form a mold block inner cavity for placing a variable-section pipe cavity liner; a feeler gauge is inserted into the gap formed by the matching surfaces of the upper mold block (2) and the lower mold block (3).

3. The adjustment and repair device according to claim 1, characterized in that: The four sides of the profile inspection template (1) are consistent with the four sides of the outer side of the upper mold block (2) and the lower mold block (3); the upper surface of the profile inspection template (1) matches the upper surface of the upper mold block (2); the lower surface of the profile inspection template (1) matches the lower surface of the lower mold block (3); after the profiles are matched, the profile inspection template (1) slides along the extension direction of the reinforcing rib (1-1).

4. The adjustment and repair device according to claim 1, characterized in that: The vertical surfaces of the upper mold block (2) and the lower mold block (3) are aligned, and the groove (3-6) in the middle of the lower surface of the lower mold block (3) cooperates with the reinforcement ribs of the inner cavity of the beam to ensure the placement direction of the upper mold block (2) and the lower mold block (3); in the process of pushing the upper (2) and lower mold blocks (3) into the inner cavity of the beam, the placement direction thereof is always kept the same as the placement direction of the variable-section pipe cavity liner, and at the same time, the upper (2) and lower mold blocks (3) are placed in the sealing position of the variable-section pipe cavity liner as required.

5. The adjustment and repair device according to claim 1, characterized in that: After placing the upper mold block (2) and the lower mold block (3) in the sealing position, insert a feeler gauge steel sheet into the gap between the upper mold block (2) and the lower mold block (3) until the upper surface of the upper mold block (2) fits the inner surface of the beam cavity and a feeler gauge steel sheet with a larger total thickness cannot be inserted, and measure the total thickness of the feeler gauge steel sheet.

6. The adjustment and repair device according to claim 1, characterized in that: The upper mold block (2) and the lower mold block (3) are taken out from the inner cavity of the beam, and the four sides are aligned. The inner cavity of the upper mold block (2) and the inner cavity of the lower mold block (3) are combined to form the mold block inner cavity, and the variable cross-section tube cavity lining block is placed in the lining block inner cavity. During the placement process, when the two through holes (2-3) on the outer end vertical surface of the upper mold block (2) are aligned with the two upper holes opened at the outer end of the variable cross-section tube cavity lining block, or the two through holes (3-3) on the outer end vertical surface of the lower mold block (3) are aligned with the two lower holes opened at the outer end of the variable cross-section tube cavity lining block, the bent handle latch (5) is inserted into the two through holes on the outer end vertical surface of the upper mold block (2). The variable cross-section tubular liner block is inserted into the two through holes (2-3) on the outer end of the variable cross-section tubular liner block and the two through holes (3-3) on the outer end of the lower mold block (3) and the two lower holes on the outer end of the variable cross-section tubular liner block; at the same time, the bent handle latch (5) is inserted into the two through holes (2-4) on the inner end of the upper mold block (2) and the two upper holes on the inner end of the variable cross-section tubular liner block or the two through holes (3-4) on the inner end of the lower mold block (3) and the two lower holes on the inner end of the variable cross-section tubular liner block, thereby determining the relative position of the variable cross-section tubular liner block and the upper mold block (2) or the lower mold block (3).

7. The adjustment and repair device according to claim 1, characterized in that: The locking screw (4) is passed through three stepped through holes (2-2) opened in the upper mold block (2) and three threaded through holes (3-2) opened in the lower mold block (3) to ensure the relative position of the upper mold block (2) and the lower mold block (3) in their mating planes; the locking screw (4) is tightened to lock the upper mold block (2) and the lower mold block (3), and at the same time, the feeler gauge steel sheet inserted in the gap between the mating planes of the upper mold block (2) and the lower mold block (3) is clamped.

8. The adjustment and repair device according to claim 1, characterized in that: The surface inspection template (1) slides along the reinforcing ribs and the peripheral interface of the template is observed to see whether there is a gap between the surface of the surface inspection template (1) and the surface of the variable-section tube cavity liner, or whether there is a partial contact between the surface of the surface inspection template (1) and the surface of the variable-section tube cavity liner, resulting in the surface inspection template (1) being unable to fit with the upper surface of the upper mold block (2).

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