A box beam inner mold variable section profiling automatic grinding robot

Abstract

The present invention relates to the technical field of grinding robots, and specifically discloses an automatic grinding robot for variable-section profiling of box girder inner molds, comprising a truss body spanning the box girder inner mold and an elastic pressing and grinding unit, an integrated dust removal unit and a locking reinforcement unit arranged on the truss body, wherein the elastic pressing and grinding unit comprises an upper pressing and grinding component and two side pressing and grinding components that are symmetrical front and back. By arranging the integrated dust removal unit, a mounting cover covers most of the grinding roller and the grinding position, forming a relatively closed space and connecting all the grinding positions, achieving the effect of integrated dust removal, thereby effectively preventing the diffusion of flying dust, and avoiding the problem that some flying dust generated by grinding is scattered everywhere and cannot be adsorbed to pollute the environment. In addition, compared with the method of simply adopting negative pressure adsorption in the prior art, the dust removal efficiency and effect are greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of grinding robots, and more specifically to an automatic grinding robot for changing the cross-section of an inner mold of a box beam. Background Art

[0002] The inner formwork of the portal box girder refers to the steel formwork structure used for casting the portal box girder. The inner formwork of the portal box girder can ensure that the portal box girder maintains the required shape and size during the casting construction process, meeting the design requirements. The inner formwork of the portal box girder has variable width structures at both ends and equal width structure in the middle, and the size gradually increases from both ends to the middle.

[0003] The patent document with the announcement number CN218169833U discloses a grinding machine for the inner mold of a prefabricated box beam, which includes a truss body spanning the inner mold of a flexible box beam, an adjustable grinding device arranged inside the truss body and used to grind the inner mold of the flexible box beam, and a dust removal device arranged on the truss body. The adjustable grinding device is installed on the truss body, and the movement of the truss body drives the adjustable grinding device to move its position, and the inner mold of the flexible box beam is grinded. In combination with the dust removal device, the dust generated during the grinding process is adsorbed, thereby avoiding the damage caused by the dust to the surrounding environment and workers.

[0004] However, the above design still has some shortcomings. First, the dust generated during the grinding process will fly everywhere, and the dispersion of dust makes it difficult for the dust removal device to effectively capture and adsorb most of the generated dust. This greatly reduces the working efficiency of the dust removal device, and it can only adsorb part of the dust, while part of the dust will still be scattered in the air, thereby polluting the environment and affecting the health of workers.

[0005] Secondly, there is a lack of auxiliary reinforcement between the first grinding roller and the second grinding roller, which reduces the relative position stability between the two. When the grinding roller contacts the inner mold of the flexible box beam and applies pressure, a horizontal reaction force is generated and transmitted to the adjusting hydraulic cylinder. Vibration and impact are also generated during the grinding process. These vibrations and impact forces are also transmitted to the adjusting hydraulic cylinder, increasing the load on the adjusting hydraulic cylinder, thereby increasing its wear and shortening its life. Summary of the invention

[0006] The present invention provides a box girder inner mold variable-section profiling automatic grinding robot, which solves the technical problems in the related art that the dust removal device is difficult to effectively capture and absorb most of the generated dust and there is a lack of auxiliary reinforcement between the first grinding roller and the second grinding roller.

[0007] The present invention provides an automatic grinding robot for variable-section profiling of an inner mold of a box girder, comprising a truss body spanning the inner mold of the box girder, and an elastic pressing and grinding unit, an integrated dust removal unit and a locking reinforcement unit arranged on the truss body, wherein the elastic pressing and grinding unit comprises an upper pressing and grinding assembly, a limiting assembly and two side pressing and grinding assemblies that are symmetrical front and back.

[0008] The integrated dust removal unit includes an upper mounting cover and six side mounting covers. The three side mounting covers on the same side are connected by two connecting folding hoses, and the three side mounting covers on the same side are spaced apart in the left and right directions. The right mounting cover is connected to the upper mounting cover by a conveying folding hose. The upper pressing and grinding assembly includes a plurality of upper grinding rollers fixedly mounted on the inner wall of the upper mounting cover, and the side pressing and grinding assembly includes a side movable plate and a side grinding roller fixedly mounted on the inner wall of the side mounting cover.

[0009] The locking reinforcement unit includes a locking rod fixedly installed on the top of the side movable plate and a locking frame fixedly installed on the side of the upper mounting cover close to the side movable plate. A plurality of mounting grooves are provided on the front and rear inner walls of the locking frame. A wedge block slidably connected to the mounting groove is fixedly installed in the mounting groove by a thrust spring.

[0010] The upper mounting cover is controlled to move downward and the locking frame is driven to slide on the outside of the locking rod until the upper mounting cover is pressed against the top of the box beam inner mold. The side mounting cover is controlled to be close to the side wall of the inner mold. At the same time, the locking rod continuously squeezes the wedge block. When the side mounting cover is pressed against the side wall of the inner mold, the corresponding wedge block is reset to lock the upper mounting cover and the side movable plate. Then several upper grinding rollers and side grinding rollers grind the box beam inner mold. During grinding, dust is extracted through the connecting folding hose and the conveying folding hose.

[0011] Furthermore, the upper pressing and grinding assembly also includes an upper hydraulic cylinder fixedly mounted on the top of the truss body through an H-shaped frame and an upper movable plate fixedly mounted on the output end of the upper hydraulic cylinder, and an upper mounting frame is fixedly mounted on the bottom of the upper movable plate through a plurality of upper buffer springs.

[0012] Furthermore, a plurality of upper guide rods which slide through the upper movable plate and are covered by upper buffer springs are fixedly mounted on the top of the upper mounting frame, and the upper mounting cover is fixedly mounted on the bottom of the upper mounting frame.

[0013] Furthermore, the side clamping and grinding assembly includes a side hydraulic cylinder fixedly mounted on the side of the truss body through a plurality of fixed frames, a side movable plate fixedly mounted on the output end of the side hydraulic cylinder, and three side mounting frames fixedly mounted on the side of the side movable plate away from the side hydraulic cylinder through a plurality of side buffer springs.

[0014] Furthermore, a plurality of side guide rods slidingly penetrating the side moving plate and covered by side buffer springs are fixedly mounted on one side of the side mounting frame close to the side moving plate, and a side mounting cover is fixedly mounted on the corresponding side mounting frame.

[0015] Furthermore, the upper mounting cover and the side mounting cover are both composed of a cover body, a corrugated cover and an abutment frame, and a pulley is rotatably mounted on the abutment frame near the side of the box beam inner mold.

[0016] Furthermore, the limiting assembly includes a plurality of upper ear plates 1 fixedly mounted on the front and rear sides of the upper mounting cover abutment frame and an upper ear plate 2 fixedly mounted on the front and rear sides of the upper mounting cover body, an upper return spring is fixedly connected between the upper ear plate 1 and the upper ear plate 2, and an upper limit rod is fixedly mounted on the top of the upper ear plate 1, which slides through the upper ear plate 2 and is covered by the upper return spring.

[0017] Furthermore, the limiting assembly also includes a side ear plate 1 fixedly mounted on the rear side of the side mounting cover abutment frame and a side ear plate 2 fixedly mounted on the rear side of the side mounting cover body, a side return spring is fixedly connected between the side ear plate 1 and the side ear plate 2, and a side limiting rod is fixedly mounted on one side of the side ear plate 1 close to the side ear plate 2, which slides through the side ear plate 2 and is covered by the side return spring.

[0018] Furthermore, the integrated dust removal unit also includes a negative pressure fan and a dust collecting box fixedly mounted on the top of the truss body through a support plate, and an exhaust pipe and an air outlet pipe are fixedly mounted on the front side of the negative pressure fan.

[0019] Furthermore, the other end of the exhaust pipe is fixedly connected to the upper mounting cover through a plurality of diverter pipes, and the other end of the air outlet pipe is fixedly connected to the dust collecting box.

[0020] The beneficial effect of the present invention is that by arranging an integrated dust removal unit, the installation cover covers most of the grinding roller and the grinding position, forming a relatively closed space and connecting all the grinding positions, thereby achieving the effect of integrated dust removal, thereby effectively preventing the diffusion of flying dust, and avoiding the problem that some flying dust generated by grinding is scattered everywhere and cannot be adsorbed and pollutes the environment. Moreover, compared with the prior art that simply uses negative pressure adsorption, the dust removal efficiency and effect are greatly improved.

[0021] By setting a locking reinforcement unit to lock the upper mounting cover and the side movable plate, the horizontal limitation of the side mounting cover is achieved, which not only ensures that the upper grinding roller and the side grinding roller can be stably pressed on the box beam inner mold, but also prevents the side mounting cover from horizontal displacement during the grinding process, thereby achieving overall auxiliary reinforcement of the elastic pressing and grinding unit, greatly improving the stability of the elastic pressing and grinding unit, and reducing the horizontal reaction force generated when the side grinding roller contacts and applies pressure on the flexible box beam inner mold, as well as the influence of the vibration and impact force generated during the grinding process on the adjusting hydraulic cylinder.

[0022] The negative pressure generated by the negative pressure fan is transmitted to the dust box through the exhaust duct, the connecting folded hose, the conveying folded hose, the diversion pipe and the air outlet duct, forming an efficient flying dust transmission system, thereby ensuring that the flying dust can be quickly and effectively collected in the dust box, thereby greatly improving the dust removal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0024] Figure 2 It is a partial three-dimensional structural schematic diagram of the elastic pressing and polishing unit, the integrated dust removal unit and the locking and reinforcing unit of the present invention.

[0025] Figure 3 The present invention Figure 2 A partial enlarged view of part A.

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the negative pressure fan, dust collecting box, exhaust pipe and air outlet pipe of the present invention.

[0027] Figure 5 It is a partial three-dimensional structural schematic diagram of an upper hydraulic cylinder, an upper movable plate, an upper return spring, an upper guide rod and an upper grinding roller of the present invention.

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of the side mounting frame, the side mounting cover, the side movable plate, the side ear plate one and the side ear plate two of the present invention.

[0029] Figure 7 It is a schematic diagram of the locking reinforcement unit of the present invention in a separated state.

[0030] Figure 8 It is a schematic diagram of the locking state of the locking reinforcement unit of the present invention.

[0031] Fig. 9 It is a partial structural sectional view of the locking frame of the present invention.

[0032] Fig.10 It is a schematic diagram of the three-dimensional structure of the box beam inner mold of the present invention.

[0033] Fig.11 It is a schematic diagram of the staggered arrangement of the side grinding rollers and the upper grinding rollers of the present invention.

[0034] In the figure: 1, truss body; 2, H-shaped frame; 3, support plate; 4, elastic pressing and grinding unit; 5, integrated dust removal unit; 6, locking reinforcement unit; 7, fixed frame; 401, upper pressing and grinding assembly; 402, side pressing and grinding assembly; 403, limit assembly; 404, pulley; 4011, upper hydraulic cylinder; 4012, upper buffer spring; 4013, upper mounting frame; 4014, upper guide rod; 4015, upper moving plate; 4016, upper grinding roller; 4021, side hydraulic cylinder; 4022, side moving plate; 4023, side buffer spring; 4024, side mounting frame; 4025, side guide rod; 40 26. Side grinding roller; 4031. Upper ear plate one; 4032. Upper ear plate two; 4033. Upper return spring; 4034. Upper limit rod; 4035. Side ear plate one; 4036. Side ear plate two; 4037. Side return spring; 4038. Side limit rod; 501. Upper mounting cover; 502. Side mounting cover; 503. Connecting folding hose; 504. Conveying folding hose; 505. Negative pressure fan; 506. Dust collecting box; 507. Air outlet duct; 508. Exhaust duct; 509. Diverter duct; 601. Locking rod; 602. Locking frame; 603. Mounting slot; 604. Thrust spring; 605. Wedge block. DETAILED DESCRIPTION

[0035] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is to enable those skilled in the art to better understand and implement the subject matter described herein. The functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the present specification. Various examples may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0036] See also Figure 1 , Figure 2 and Figure 7 In this embodiment, a box girder inner mold variable-section profiling automatic grinding robot is proposed, including a truss body 1 spanning the box girder inner mold and an elastic pressing and grinding unit 4, an integrated dust removal unit 5 and a locking reinforcement unit 6 arranged on the truss body 1, the elastic pressing and grinding unit 4 includes an upper pressing and grinding component 401, a limit component 403 and two front-to-back symmetrical side pressing and grinding components 402, and the integrated dust removal unit 5 includes an upper mounting cover 501 and six side mounting covers 502.

[0037] See also Figure 1 , Figure 2 and Figure 5The upper pressing and grinding assembly 401 includes an upper hydraulic cylinder 4011 fixedly mounted on the top of the truss body 1 through an H-shaped frame 2, an upper movable plate 4015 fixedly mounted on the output end of the upper hydraulic cylinder 4011, and a plurality of upper grinding rollers 4016 fixedly mounted on the inner wall of the upper mounting cover 501. An upper mounting frame 4013 is fixedly mounted on the bottom of the upper movable plate 4015 through a plurality of upper buffer springs 4012.

[0038] See also Figure 2 and Figure 5 A plurality of upper guide rods 4014 are fixedly mounted on the top of the upper mounting frame 4013 , and the upper guide rods 4014 slide through the upper movable plate 4015 and are covered by the upper buffer springs 4012 . The upper mounting cover 501 is fixedly mounted on the bottom of the upper mounting frame 4013 .

[0039] See also Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 8 The side pressing and grinding assembly 402 includes a side moving plate 4022, a side grinding roller 4026 fixedly mounted on the inner wall of the side mounting cover 502, and a side hydraulic cylinder 4021 fixedly mounted on the side of the truss body 1 through a plurality of fixing frames 7. The side grinding roller 4026 and the upper grinding roller 4016 are arranged alternately ( Fig.11 As shown), to avoid interference with each other, the side movable plate 4022 is fixedly mounted on the output end of the side hydraulic cylinder 4021, and three side mounting frames 4024 are fixedly mounted on the side of the side movable plate 4022 away from the side hydraulic cylinder 4021 through a plurality of side buffer springs 4023.

[0040] See also Figure 2 , Figure 6 , Figure 7 and Figure 8 A plurality of side guide rods 4025 are fixedly installed on one side of the side mounting frame 4024 close to the side movable plate 4022, and the side guide rods 4025 slide through the side movable plate 4022 and are covered by the side buffer springs 4023. The side mounting cover 502 is fixedly installed on the corresponding side mounting frame 4024.

[0041] See also Figure 2 , Figure 3 , Figure 6 , Figure 7 and Figure 8 The upper mounting cover 501 and the side mounting cover 502 are both composed of a cover body, a corrugated cover and an abutment frame, and a pulley 404 is rotatably installed on the abutment frame near the inner mold of the box beam.

[0042] When in use, the truss body 1 spans the box girder inner mold, and a walking assembly (not shown in the figure) is set at the bottom of the truss body 1 to drive the truss body 1 to move and grind the box girder inner mold. First, the upper hydraulic cylinder 4011 is started, and the output end of the upper hydraulic cylinder 4011 pushes the upper movable plate 4015 to move downward, thereby driving the upper mounting cover 501 to move downward through the upper mounting frame 4013, and then a number of upper grinding rollers 4016 move downward accordingly, and then the pulley 404 on the upper abutment frame first contacts with the top of the box girder inner mold, as the output end of the upper hydraulic cylinder 4011 continues to push the bellows to fold, the upper grinding roller 4016 abuts against the top of the box girder inner mold, and then begins to compress the upper buffer spring 4012, and under the action of the upper buffer spring 4012, the upper grinding roller 4016 presses the box girder inner mold, and then starts the side hydraulic cylinder 4021, The output end of the side hydraulic cylinder 4021 pushes the side moving plate 4022 to move away from the side hydraulic cylinder 4021, thereby driving the three side mounting covers 502 to move through the side mounting frame 4024, and then the three side grinding rollers 4026 move close to the side wall of the box beam inner mold, and then the pulley 404 on the side abutment frame contacts the side wall of the box beam inner mold, as the output end of the side hydraulic cylinder 4021 pushes the bellows to fold, the three side grinding rollers 4026 abut against the side wall of the box beam inner mold, and then begin to compress the side buffer spring 4023, and under the action of the side buffer spring 4023, the side grinding roller 4026 presses the box beam inner mold, and at the same time, the locking and reinforcement unit 6 limits and locks the side mounting cover 502 in the front, back, left and right horizontal directions, so as to realize the overall auxiliary reinforcement of the elastic compression and grinding unit 4, so that the stability of the elastic compression and grinding unit 4 is greatly improved.

[0043] When the grinding is completed, the output end of the upper hydraulic cylinder 4011 contracts first, and the upper buffer spring 4012 gradually extends. Then, the upper grinding roller 4016 separates from the top of the box beam inner mold, and then the upper pulley 404 separates from the top of the box beam inner mold for reset. At the same time, the horizontal limit lock of the locking reinforcement unit 6 on the side mounting cover 502 is released. Then, the output end of the side hydraulic cylinder 4021 contracts, and the side buffer spring 4023 gradually extends. Then, the side grinding roller 4026 separates from the side wall of the box beam inner mold, and then the side pulley 404 separates from the side wall of the box beam inner mold for reset.

[0044] See also Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6The limiting assembly 403 includes a plurality of upper ear plates 4031 fixedly mounted on the front and rear sides of the upper mounting cover 501 abutting frame and an upper ear plate 2 4032 fixedly mounted on the front and rear sides of the upper mounting cover 501 cover body, an upper return spring 4033 is fixedly connected between the upper ear plate 1 4031 and the upper ear plate 2 4032, and an upper limiting rod 4034 is fixedly mounted on the top of the upper ear plate 1 4031, which slides through the upper ear plate 2 4032 and is covered by the upper return spring 4033.

[0045] See also Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The limiting assembly 403 also includes a side ear plate 1 4035 fixedly mounted on the rear side of the side mounting cover 502 abutting frame and a side ear plate 2 4036 fixedly mounted on the rear side of the side mounting cover 502 cover body, a side return spring 4037 is fixedly connected between the side ear plate 1 4035 and the side ear plate 2 4036, and a side limiting rod 4038 is fixedly mounted on the side of the side ear plate 1 4035 close to the side ear plate 2 4036, which slides through the side ear plate 2 4036 and is covered by the side return spring 4037.

[0046] When in use, when the pulley 404 of the upper abutment frame contacts the top of the box beam inner mold and folds the bellows, the upper abutment frame moves toward the side close to the upper cover body and compresses the upper return spring 4033. Under the action of the upper return spring 4033, the upper abutment frame pushes the upper pulley 404 to press the top of the box beam inner mold. At the same time, under the action of the upper limit rod 4034, the upper abutment frame, the upper bellows and the upper pulley 404 are limited and reinforced. Then, when the pulley of the side abutment frame When 404 contacts the side wall of the box beam inner mold and causes the corrugated tube to fold, the side abutment frame moves toward the side of the side cover body and compresses the side return spring 4037. Under the action of the side return spring 4037, the side abutment frame pushes the side pulley 404 to press the side wall of the box beam inner mold. At the same time, under the action of the side limit rod 4038, the side abutment frame, the side corrugated tube and the side pulley 404 are limited and reinforced, thereby avoiding deformation of the corrugated tube during the movement and grinding of the truss body 1.

[0047] When the grinding is completed, the output end of the upper hydraulic cylinder 4011 contracts, and the upper return spring 4033 gradually extends, driving the cover body to move away from the bellows, so that the bellows is extended and reset, and then the output end of the side hydraulic cylinder 4021 contracts, and the side return spring 4037 gradually extends, driving the cover body to move away from the bellows, so that the bellows is extended and reset.

[0048] See also Figure 1 , Figure 2 and Figure 4The integrated dust removal unit 5 also includes a negative pressure fan 505 and a dust collecting box 506 fixedly mounted on the top of the truss body 1 through a support plate 3, and an exhaust pipe 508 and an outlet pipe 507 are fixedly mounted on the front side of the negative pressure fan 505.

[0049] See also Figure 1 , Figure 2 and Figure 4 The other end of the exhaust pipe 508 is fixedly connected to the upper mounting cover 501 through a plurality of diversion pipes 509 , and the other end of the air outlet pipe 507 is fixedly connected to the dust collecting box 506 .

[0050] See also Figure 1 , Figure 2 and Figure 7 The side mounting covers 502 on the same side are connected by two connecting folded hoses 503, and the three side mounting covers 502 on the same side are spaced apart in the left-right direction, and the right mounting cover 502 is connected to the upper mounting cover 501 by a conveying folded hose 504.

[0051] During specific use, when the pulley 404 on the abutment frame presses the box beam inner mold, and the grinding roller presses the box beam inner mold, the upper mounting cover 501 and the side mounting cover 502 have covered the grinding roller and most of the grinding position, and then the truss body 1 is moved along the box beam inner mold for grinding. During the grinding process, the negative pressure fan 505 is started to generate negative pressure, and this negative pressure is transmitted to the dust collecting box 506 through the exhaust pipe 508 to form a low-pressure area. The flying dust generated by grinding and covered in the upper mounting cover 501 is absorbed by the low-pressure area, and enters the dust collecting box 506 through the shunt pipe 509, the exhaust pipe 508 and the air outlet pipe 507 in sequence with the air flow. The flying dust generated by grinding and contained in the cover 502 is also absorbed by the low-pressure area, and enters the upper mounting cover 502 through the connecting folding hose 503 and the conveying folding hose 504 in sequence with the air flow, and then passes through the diversion pipe 509, the exhaust pipe 508 and the outlet pipe 507 in sequence, and is discharged into the dust collecting box 506. The grinding roller and most of the grinding positions are covered by the upper mounting cover 501 and the side mounting cover 502, forming a relatively closed space and connecting all the grinding positions to achieve the effect of integrated dust removal, thereby effectively preventing the spread of flying dust and avoiding the problem that some flying dust generated by grinding is scattered everywhere and cannot be absorbed and pollutes the environment.

[0052] See also Figure 2 , Figure 4 , Figure 7 , Figure 8 and Fig. 9The locking reinforcement unit 6 includes a locking rod 601 fixedly installed on the top of the side movable plate 4022 and a locking frame 602 fixedly installed on the upper mounting cover 501 close to the side movable plate 4022. A plurality of mounting grooves 603 are provided on the front and rear inner walls of the locking frame 602. A wedge block 605 slidably connected to the mounting groove 603 is fixedly installed in the mounting groove 603 through a thrust spring 604.

[0053] When in use, when the output end of the upper hydraulic cylinder 4011 pushes the upper movable plate 4015 to move downward, and the upper mounting cover 501 is driven downward by the upper mounting frame 4013, the locking frame 602 is driven to move downward synchronously and slide on the outer side of the locking rod 601. When the upper grinding roller 4016 presses the inner mold of the box beam, the side hydraulic cylinder 4021 pushes the side movable plate 4022 to move away from the side hydraulic cylinder 4021 and drives the three side mounting covers 502 to move close to the side wall of the inner mold of the box beam through the side mounting frame 4024. During this process, the locking rod 601 continuously squeezes and passes over the wedge block 605. When the side grinding roller 4026 presses the inner mold of the box beam, the locking rod 601 continuously squeezes and passes over the wedge block 605. When pressing the side wall of the box beam inner mold, the wedge block 605 that has just passed over is reset under the action of its corresponding thrust spring 604, thereby clamping the locking rod 601 to lock the upper mounting cover 501 and the side movable plate 4022, thereby achieving horizontal limitation of the side mounting cover 502, which not only ensures that the upper grinding roller 4016 and the side grinding roller 4026 can be stably pressed on the box beam inner mold, but also prevents the side mounting cover 502 from horizontal displacement during the grinding process, thereby achieving overall auxiliary reinforcement of the elastic pressing and grinding unit 4, so that the stability of the elastic pressing and grinding unit 4 is greatly improved.

[0054] When the grinding is completed, the upper hydraulic cylinder 4011 drives the upper movable plate 4015 to move upward. During the upward movement of the upper mounting cover 501, the locking frame 602 will be driven to move upward and separate from the locking rod 601, thereby releasing the lock between the upper mounting cover 501 and the side movable plate 4022, and then releasing the horizontal limit of the side mounting cover 502. Then, the output end of the side hydraulic cylinder 4021 contracts, driving the side mounting cover 502 to reset.

[0055] See also Figure 1-Figure 11The operating principle of the present invention is now described as follows: the grinding roller 4016 is driven by the output end of the upper hydraulic cylinder 4011 to press the box beam inner mold, and at the same time, the upper mounting cover 501 covers the top grinding position of the box beam inner mold, and then the three side grinding rollers 4026 are driven by the output end of the side hydraulic cylinder 4021 to abut against the side walls of the box beam inner mold, and at the same time, the side mounting cover 502 covers the grinding position of the side walls of the box beam inner mold, and the locking and reinforcement unit 6 locks the side mounting cover 502 in the horizontal direction, and then the upper grinding roller 4016 and the side grinding roller 4026 are driven to rotate by the hydraulic motor to grind the box beam inner mold, and at the same time, the truss body 1 is driven to move along the box beam inner mold. During the grinding process, the negative pressure generated by the negative pressure fan 505 is used to draw the flying dust generated by grinding in the upper mounting cover 501 and the side mounting cover 502 into the dust collecting box 506 for integrated dust removal.

[0056] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A box beam inner mold variable cross-section profiling automatic grinding robot, characterized in that: include: A truss body (1) spanning the inner mold of a box beam, and an elastic pressing and polishing unit (4), an integrated dust removal unit (5) and a locking and reinforcing unit (6) arranged on the truss body (1), wherein the elastic pressing and polishing unit (4) comprises an upper pressing and polishing assembly (401), a limit assembly (403) and two side pressing and polishing assemblies (402) that are symmetrical in front and back; The integrated dust removal unit (5) comprises an upper mounting cover (501) and six side mounting covers (502); the three side mounting covers (502) on the same side are connected to each other via two connecting folding hoses (503); the three side mounting covers (502) on the same side are spaced apart in the left-right direction; the right mounting cover (502) is connected to the upper mounting cover (501) via a conveying folding hose (504); the upper pressing and grinding assembly (401) comprises a plurality of upper grinding rollers (4016) fixedly mounted on the inner wall of the upper mounting cover (501); and the side pressing and grinding assembly (402) comprises a side movable plate (4022) and a side grinding roller (4026) fixedly mounted on the inner wall of the side mounting cover (502); The locking reinforcement unit (6) comprises a locking rod (601) fixedly mounted on the top of the side movable plate (4022) and a locking frame (602) fixedly mounted on the upper mounting cover (501) on a side close to the side movable plate (4022), a plurality of mounting grooves (603) are provided on the front and rear inner walls of the locking frame (602), and a wedge block (605) slidably connected to the mounting groove (603) is fixedly mounted in the mounting groove (603) via a thrust spring (604); The upper mounting cover (501) is controlled to move downward and the locking frame (602) is driven to slide on the outer side of the locking rod (601) until the upper mounting cover (501) is pressed against the top of the box beam inner mold. The side mounting cover (502) is controlled to approach the side wall of the inner mold. At the same time, the locking rod (601) continuously squeezes the wedge block (605). When the side mounting cover (502) is pressed against the side wall of the inner mold, the corresponding wedge block (605) is reset to lock the upper mounting cover (501) and the side movable plate (4022). Then, a plurality of upper grinding rollers (4016) and side grinding rollers (4026) grind the box beam inner mold. During grinding, dust is extracted through the connecting folding hose (503) and the conveying folding hose (504).

2. The variable-section profiling automatic grinding robot for the inner mold of a box beam according to claim 1 is characterized in that: The upper pressing and grinding assembly (401) further comprises an upper hydraulic cylinder (4011) fixedly mounted on the top of the truss body (1) via an H-shaped frame (2) and an upper movable plate (4015) fixedly mounted on the output end of the upper hydraulic cylinder (4011), and an upper mounting frame (4013) fixedly mounted on the bottom of the upper movable plate (4015) via a plurality of upper buffer springs (4012).

3. The box beam inner mold variable cross-section profiling automatic grinding robot according to claim 2 is characterized in that: A plurality of upper guide rods (4014) which slide through the upper movable plate (4015) and are covered by the upper buffer spring (4012) are fixedly mounted on the top of the upper mounting frame (4013), and the upper mounting cover (501) is fixedly mounted on the bottom of the upper mounting frame (4013).

4. The variable-section profiling automatic grinding robot for the inner mold of a box beam according to claim 3 is characterized in that: The side pressing and grinding assembly (402) comprises a side hydraulic cylinder (4021) fixedly mounted on the side of the truss body (1) via a plurality of fixing frames (7); a side movable plate (4022) fixedly mounted on the output end of the side hydraulic cylinder (4021); and three side mounting frames (4024) fixedly mounted on the side of the side movable plate (4022) away from the side hydraulic cylinder (4021) via a plurality of side buffer springs (4023).

5. The box beam inner mold variable cross-section profiling automatic grinding robot according to claim 4, characterized in that: A plurality of side guide rods (4025) slidingly penetrating the side moving plate (4022) and covered by the side buffer spring (4023) are fixedly installed on one side of the side mounting frame (4024) close to the side moving plate (4022), and the side mounting cover (502) is fixedly installed on the corresponding side mounting frame (4024).

6. The box beam inner mold variable cross-section profiling automatic grinding robot according to claim 1, characterized in that: The upper mounting cover (501) and the side mounting cover (502) are both composed of a cover body, a corrugated cover and an abutment frame, and a pulley (404) is rotatably mounted on the abutment frame near the side of the box beam inner mold.

7. The variable-section profiling automatic grinding robot for the inner mold of a box beam according to claim 6, characterized in that: The limiting assembly (403) comprises a plurality of upper ear plates (4031) fixedly mounted on the front and rear sides of the upper mounting cover (501) abutting frame and an upper ear plate (4032) fixedly mounted on the front and rear sides of the cover body of the upper mounting cover (501); an upper return spring (4033) is fixedly connected between the upper ear plate (4031) and the upper ear plate (4032); an upper limit rod (4034) is fixedly mounted on the top of the upper ear plate (4031) and is slidably penetrates the upper ear plate (4032) and is covered by the upper return spring (4033).

8. The box beam inner mold variable cross-section profiling automatic grinding robot according to claim 6, characterized in that: The limiting assembly (403) further comprises a side ear plate 1 (4035) fixedly mounted on the rear side of the abutment frame of the side mounting cover (502) and a side ear plate 2 (4036) fixedly mounted on the rear side of the cover body of the side mounting cover (502); a side return spring (4037) is fixedly connected between the side ear plate 1 (4035) and the side ear plate 2 (4036); and a side limiting rod (4038) is fixedly mounted on the side of the side ear plate 1 (4035) close to the side ear plate 2 (4036), the side ear plate 1 (4035) being close to the side ear plate 2 (4036) and being slidably penetrated through the side ear plate 2 (4036) and being covered by the side return spring (4037).

9. The box beam inner mold variable cross-section profiling automatic grinding robot according to claim 1, characterized in that: The integrated dust removal unit (5) further comprises a negative pressure fan (505) and a dust collecting box (506) fixedly mounted on the top of the truss body (1) via a support plate (3); an exhaust pipe (508) and an outlet pipe (507) are fixedly mounted on the front side of the negative pressure fan (505).

10. The box beam inner mold variable cross-section profiling automatic grinding robot according to claim 9, characterized in that: The other end of the exhaust pipe (508) is fixedly connected to the upper mounting cover (501) through a plurality of diversion pipes (509), and the other end of the air outlet pipe (507) is fixedly connected to the dust collecting box (506).

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