A box beam steel mold grinding device and use method thereof

Abstract

The present invention discloses a box girder steel mold grinding device and a method for using the same, which belongs to the technical field of box girder steel molds, and includes a moving assembly: the moving assembly includes a support guide assembly and a driving assembly, the left and right sides of the box girder steel film are in close contact with the support guide assembly, and the support assembly is movably connected to the driving assembly; an all-round grinding assembly for profiling the box girder steel film is connected between the driving assemblies; the all-round grinding assembly is connected to a tensioning assembly for tensioning the all-round grinding assembly. Through the above-mentioned method, the present invention realizes profiling grinding while the all-round grinding assembly is moved, which is conducive to realizing rapid grinding of the box girder steel film, has a simple structure, is easy to use, and has a low overall cost.

Description

Technical Field

[0001] The invention relates to the technical field of box girder steel molds, and in particular to a box girder steel mold grinding device and a use method thereof. Background Art

[0002] The surface of the prefabricated box girder steel formwork is mainly composed of a pair of left-right symmetrical flange plate surfaces, a pair of side formwork surfaces and a bottom formwork surface, among which the side formwork area is the largest. The box girder steel formwork needs to be polished by polishing equipment when in use.

[0003] For example, Chinese patent CN215239967U discloses a grinding machine for steel formwork of railway prefabricated box girders, which belongs to the technical field of devices for grinding. The grinding machine includes a main truss; the upper part of the main truss forms a cantilever frame extending to both ends, and the lower part forms a trapezoidal frame; two identical walking mechanisms, a door-shaped frame and a lifting mechanism are arranged at both ends of the cantilever frame; the walking mechanism includes a walking wheel arranged at the bottom of the door-shaped frame, and the walking wheel falls on the tracks on both sides of the top of the casting pedestal of the box girder; the surface of the steel formwork is divided into seven sections, and seven types of grinding roller mechanisms are symmetrically arranged along the lower edge of the main truss from the end of the main truss, which are parallel to the seven sections and used for grinding the seven sections, and the grinding rollers of adjacent grinding roller mechanisms are parallel to each other and overlap in the front and back direction of the grinding machine movement. The grinding machine can achieve accurate and precise grinding of the steel formwork surface of railway prefabricated box girders with fewer grinding wheels.

[0004] However, the above structure has the following problems: the above structure is relatively complex, and at the same time, the drive structure is arranged in a large number, and the overall cost is relatively high.

[0005] Based on this, the present invention designs a box girder steel mold grinding device and a use method thereof to solve the above problems. Summary of the invention

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides a box girder steel mold grinding device and a use method thereof.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A box beam steel mold grinding device comprises a moving component:

[0009] The moving assembly includes a supporting guide assembly and a driving assembly. The left and right sides of the box beam steel membrane are in close contact with the supporting guide assembly, and the supporting assembly is movably connected with the driving assembly in a limited position.

[0010] An all-round grinding assembly for profiling the box girder steel membrane is connected between the driving assemblies;

[0011] The all-around sanding assembly is connected with a tensioning assembly for tensioning the all-around sanding assembly.

[0012] Furthermore, the support guide assembly includes a guide groove and a second support seat, the second support seat is provided with a guide groove on the top, and the inner lateral portion of the upper end of the second support seat is in contact with the outer edge bottom of the box beam steel membrane.

[0013] Furthermore, the moving assembly includes wheels, a mounting shaft, a mounting frame, a second pulley assembly, a driving shaft, a third support frame and a third driving motor. The mounting frame is fixedly mounted at both ends of the all-round grinding assembly, the third driving motor and the third support frame are fixedly connected to the top of the mounting frame, the output end of the third driving motor is connected to the driving shaft, and the driving shaft is rotatably connected to the third support frame through a bearing, the bottom of the mounting frame is rotatably connected to the mounting shaft at equal intervals, the inner end of the mounting shaft is fixedly connected to a wheel, and the wheel is limitedly slidably connected to the guide groove, and the mounting shaft and the driving shaft of the middle group are transmission connected through the second pulley assembly.

[0014] Furthermore, the omnidirectional grinding assembly includes a first support frame, a second support frame, a grinding belt, a side pressure roller, an arc-shaped pressure roller, a support plate, a bottom pressure roller, an upper pressure roller, a top pressure roller, a support seat, a driving roller, a connecting shaft, a guide roller, a first driving motor and a first pulley assembly. The lower end of the inner wall of the first support frame is rotatably connected to the bottom pressure roller at an equal interval, both ends of the inner wall of the lower end of the first support frame are rotatably connected to the arc-shaped pressure roller, the side inner wall of the first support frame is equidistantly connected to the side pressure roller, the inclination between adjacent side pressure rollers is the same as the inclination of the inner wall of the box beam steel membrane, the two ends of the upper end of the first support frame are fixedly connected to the second support frame, and the second support frame is rotatably connected to the A top pressure roller is connected, guide rollers are fixedly connected on both sides of the upper end of the first support frame, a driving roller is rotatably connected to the top of the first support frame, and upper pressure rollers are rotatably connected to the lower sides of the driving roller of the first support frame, a support plate is fixedly connected inside the first support frame, a first driving motor and a supporting seat are fixedly connected on the supporting plate, a connecting shaft is connected to the output end of the first driving motor, the connecting shaft is rotatably connected to the supporting seat, and the connecting shaft is rotatably connected to the driving roller through a first pulley assembly, and the outer walls of the side pressure rollers, arc-shaped pressure rollers, bottom pressure rollers, top pressure rollers, upper pressure rollers, driving rollers and guide rollers are rotatably connected to the grinding belts, and the outer wall of the grinding belts is in contact with the inner wall of the box girder steel film.

[0015] Furthermore, the inner side of the upper pressure roller is located inside the outer side of the driving roller.

[0016] Furthermore, the mounting frame is fixedly mounted on both ends of the top of the first supporting frame.

[0017] Furthermore, the tensioning assembly includes a transverse axis, a second drive motor, a connecting plate, a first connecting roller and a second connecting roller. The outer wall of the first support frame is fixedly connected to the second drive motor, the output end of the second drive motor is fixedly connected to the transverse axis, the front and rear ends of the transverse axis are fixedly connected to the connecting plate, and the outer end of the connecting plate is rotatably connected to the first connecting roller and the second connecting roller.

[0018] Furthermore, the grinding belt is located between the first connecting roller and the second connecting roller.

[0019] Furthermore, the transverse axis is rotatably connected to the first support frame via a bearing.

[0020] A method for using a box beam steel mold grinding device comprises the following steps:

[0021] The first supporting frame of the all-round grinding assembly is placed in the steel film of the box beam, the bottom pressure roller presses the grinding belt against the inner bottom of the steel film of the box beam, the arc-shaped pressure roller presses the grinding belt along the arc-shaped part of the lower end of the steel film of the box beam, the side pressure roller presses the grinding belt against the inclined side wall of the steel film of the box beam, the top pressure roller presses the grinding belt against the top of the steel film of the box beam, the top pressure roller and the side pressure roller press the grinding belt against the arc-shaped part of the upper end of the steel film of the box beam, the second driving motor of the tensioning assembly drives the horizontal axis to rotate counterclockwise, the horizontal axis drives the connecting plate to rotate counterclockwise, the connecting plate drives the second connecting roller to rotate upward, the second connecting roller pushes the grinding belt to move upward, the second connecting roller tensions the grinding belt upward, and the contact area between the grinding belt and the upper pressure roller is increased, the lateral part of the upper inner side of the second supporting seat of the support assembly of the moving assembly is fitted and contacted with the outer edge bottom of the steel film of the box beam, and the all-round grinding assembly drives the wheel to fit and contact with the guide groove;

[0022] Step 2: The third driving motor drives the driving shaft to rotate along the third supporting frame, and the driving shaft drives the installation shaft of the middle group to rotate through the second pulley assembly, and the installation shaft of the middle group drives the wheels of the middle group to rotate along the guide groove, and the other wheels provide auxiliary support to the mounting frame. At the same time, the first driving motor of the all-round grinding assembly drives the connecting shaft, and the connecting shaft drives the driving roller to rotate through the first pulley assembly. Under the action of the two sets of upper pressure rollers, the driving roller drives the grinding belt to rotate along the side pressure rollers, arc pressure rollers, bottom pressure rollers, top pressure rollers, upper pressure rollers, driving rollers and guide rollers. The grinding belt rotates on the inner wall of the box girder steel film to perform contour grinding on the box girder steel film, so that the all-round grinding assembly can perform contour grinding while moving, which is conducive to the rapid grinding of the box girder steel film.

[0023] Beneficial effects:

[0024] The present invention makes the support and guide components of the moving component fit and contact with the box girder steel film, the all-round grinding component drives the driving component of the moving component to connect with the support and guide component, the tensioning component performs tensioning treatment on the all-round grinding component to achieve the fit and contact between the all-round grinding component and the inner wall of the box girder steel film, the driving component moves along the support and guide component, the all-round grinding component performs contour grinding on the box girder steel film, and at the same time, the driving component moves along the support and guide component to achieve the all-round grinding component moving and contour grinding, which is conducive to the rapid grinding of the box girder steel film, has a simple structure, is easy to use, and has low overall cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 A box beam steel mold grinding device of the present invention is a three-dimensional Figure 1 ;

[0027] Figure 2 It is a front view of a box beam steel mold grinding device of the present invention;

[0028] Figure 3 It is a left view of a box beam steel mold grinding device of the present invention;

[0029] Figure 4 A box beam steel mold grinding device of the present invention is a three-dimensional Figure 2 ;

[0030] Figure 5 A box beam steel mold grinding device of the present invention is a three-dimensional Figure 3 ;

[0031] Figure 6 A box beam steel mold grinding device of the present invention is a three-dimensional Figure 4 ;

[0032] Figure 7 For along Figure 3 AA direction section Figure 3 .

[0033] The numbers in the figure represent: 1. Box girder steel membrane 2. All-round grinding assembly 21. First support frame 22. Second support frame 23. Grinding belt 24. Side pressure roller 25. Arc-shaped pressure roller 26. Support plate 27. Bottom pressure roller 28. Upper pressure roller 29. Top pressure roller 210. Support seat 211. Drive roller 212. Connecting shaft 213. Guide roller 214. First drive motor 215. First pulley assembly 3. Tensioning assembly 31. Horizontal shaft 32. Second drive motor 33. Connecting plate 34. First connecting roller 35. Second connecting roller 4. Moving assembly 41. Wheel 42. Mounting shaft 43. Mounting frame 44. Second pulley assembly 45. Drive shaft 46. Third support frame 47. Third drive motor 48. Guide groove 49. Second support seat. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] The present invention will be further described below in conjunction with the embodiments.

[0036] Embodiment 1

[0037] Please refer to the instruction manual Figure 1-7 , a box beam steel mold grinding device, including a moving component 4:

[0038] The moving assembly 4 includes a supporting guide assembly and a driving assembly. The left and right sides of the box beam steel membrane 1 are in close contact with the supporting guide assembly, and the supporting assembly is movably connected with the driving assembly in a limited position.

[0039] An all-round grinding component 2 for profiling and grinding the box girder steel membrane 1 is connected between the driving components;

[0040] The omnidirectional grinding assembly 2 is connected with a tensioning assembly 3 for tensioning the omnidirectional grinding assembly 2;

[0041] The supporting and guiding components of the moving component 4 are fitted and contacted with the box girder steel film 1, the all-round grinding component 2 drives the driving component of the moving component 4 to connect with the supporting and guiding components, the tensioning component 3 tensions the all-round grinding component 2 to achieve the all-round grinding component 2 and the inner wall of the box girder steel film 1 in contact, the driving component moves along the supporting and guiding components, the all-round grinding component 2 performs contour grinding on the box girder steel film 1, and at the same time, the driving component moves along the supporting and guiding components to achieve the all-round grinding component 2 moving and contour grinding, which is conducive to the rapid grinding of the box girder steel film 1, with a simple structure, easy to use and low overall cost.

[0042] The support guide assembly includes a guide groove 48 and a second support seat 49. The second support seat 49 has a guide groove 48 on its top. The lateral portion of the inner side of the upper end of the second support seat 49 is in contact with the outer edge bottom of the box beam steel membrane 1.

[0043] The moving assembly includes a wheel 41, a mounting shaft 42, a mounting frame 43, a second pulley assembly 44, a driving shaft 45, a third support frame 46 and a third driving motor 47. The mounting frame 43 is fixedly installed at both ends of the all-round grinding assembly 2. The third driving motor 47 and the third support frame 46 are fixedly connected to the top of the mounting frame 43. The output end of the third driving motor 47 is connected to the driving shaft 45, and the driving shaft 45 is rotatably connected to the third support frame 46 through a bearing. The bottom of the mounting frame 43 is rotatably connected to the mounting shaft 42 at equal intervals. The inner end of the mounting shaft 42 is fixedly connected to the wheel 41, and the wheel 41 is limitedly slidably connected to the guide groove 48. The mounting shaft 42 and the driving shaft 45 of the middle group are transmission connected through the second pulley assembly 44.

[0044] The lateral part of the upper inner end of the second support seat 49 of the support assembly of the moving assembly 4 is fitted and contacted with the bottom outer edge of the box beam steel film 1, and the all-round grinding assembly 2 drives the wheel 41 to fit and contact with the guide groove 48. The third driving motor 47 drives the driving shaft 45 to rotate along the third supporting frame 46. The driving shaft 45 drives the installation shaft 42 of the middle group to rotate through the second pulley assembly 44. The installation shaft 42 of the middle group drives the wheel 41 of the middle group to rotate along the guide groove 48. The other wheels 41 provide auxiliary support to the mounting frame 43, so as to realize the stable movement of the all-round grinding assembly 2 along the guide groove 48, which is beneficial for the all-round grinding assembly 2 to always fit and contact with the inner wall of the box beam steel film 1.

[0045] The all-round grinding component 2 includes a first support frame 21, a second support frame 22, a grinding belt 23, a side pressure roller 24, an arc-shaped pressure roller 25, a support plate 26, a bottom pressure roller 27, an upper pressure roller 28, a top pressure roller 29, a support seat 210, a driving roller 211, a connecting shaft 212, a guide roller 213, a first driving motor 214 and a first pulley assembly 215. The lower end of the inner wall of the first support frame 21 is rotatably connected with the bottom pressure roller 27 at an equal interval, and both ends of the inner wall of the lower end of the first support frame 21 are rotatably connected with the arc-shaped pressure roller 25. The side inner wall of the first support frame 21 is equidistantly connected with side pressure rollers 24, and the inclination between adjacent side pressure rollers 24 is the same as the inclination of the inner wall of the box beam steel membrane 1. The second support frame 22 is fixedly connected to the two ends of the upper end of the first support frame 21, and the second support frame 22 is rotatably connected with the top pressure roller 29. Guide rollers 213 are fixedly connected to both sides of the upper end of the support frame 21, a driving roller 211 is rotatably connected to the top of the first support frame 21, and upper pressure rollers 28 are rotatably connected to the first support frame 21 below both sides of the driving roller 211, a support plate 26 is fixedly connected inside the first support frame 21, and a first driving motor 214 and a support seat 210 are fixedly connected to the support plate 26, and a connecting shaft 212 is connected to the output end of the first driving motor 214, and the connecting shaft 212 is rotatably connected to the support seat 210, and the connecting shaft 212 is rotatably connected to the driving roller 211 through a first pulley assembly 215, and the outer walls of the side pressure rollers 24, the arc-shaped pressure rollers 25, the bottom pressure rollers 27, the top pressure rollers 29, the upper pressure rollers 28, the driving rollers 211 and the guide rollers 213 are rotatably connected to the grinding belt 23, and the outer wall of the grinding belt 23 is in contact with the inner wall of the box beam steel membrane 1.

[0046] The inner side of the upper pressure roller 28 is located inside the outer side of the driving roller 211;

[0047] The mounting frame 43 is fixedly mounted on both ends of the top of the first supporting frame 21;

[0048] The first support frame 21 of the omnidirectional grinding assembly 2 is placed in the box beam steel film 1, the bottom pressure roller 27 presses the grinding belt 23 on the inner bottom of the box beam steel film 1, the arc-shaped pressure roller 25 presses the grinding belt 23 along the lower end arc-shaped part of the box beam steel film 1, the side pressure roller 24 presses the grinding belt 23 on the inclined side wall of the box beam steel film 1, the top pressure roller 29 presses the grinding belt 23 on the top of the box beam steel film 1, the top pressure roller 29 and the side pressure roller 24 press the grinding belt 23 on the upper end arc of the box beam steel film 1, the tensioning assembly 3 tensions the grinding belt 23, and the wheel 41 rotates along the guide groove 48. The first driving motor 214 of the azimuth grinding assembly 2 drives the connecting shaft 212, and the connecting shaft 212 drives the driving roller 211 to rotate through the first pulley assembly 215. Under the action of the two sets of upper pressure rollers 28, the driving roller 211 drives the grinding belt 23 to rotate along the side pressure roller 24, the arc-shaped pressure roller 25, the bottom pressure roller 27, the top pressure roller 29, the upper pressure roller 28, the driving roller 211 and the guide roller 213. The grinding belt 23 rotates on the inner wall of the box beam steel film 1 to perform contour grinding on the box beam steel film 1, so that the all-round grinding assembly 2 can perform contour grinding while moving, which is conducive to realizing the rapid grinding of the box beam steel film 1.

[0049] The tensioning assembly 3 includes a transverse shaft 31, a second drive motor 32, a connecting plate 33, a first connecting roller 34 and a second connecting roller 35. The second drive motor 32 is fixedly connected to the outer wall of the first support frame 21, the output end of the second drive motor 32 is fixedly connected to the transverse shaft 31, the front and rear ends of the transverse shaft 31 are fixedly connected to the connecting plate 33, and the outer end of the connecting plate 33 is rotatably connected to the first connecting roller 34 and the second connecting roller 35.

[0050] The grinding belt 23 is located between the first connecting roller 34 and the second connecting roller 35;

[0051] The horizontal shaft 31 is rotatably connected to the first support frame 21 through a bearing;

[0052] When the omnidirectional grinding assembly 2 is grinding, the second driving motor 32 of the tensioning assembly 3 drives the horizontal shaft 31 to rotate counterclockwise, the horizontal shaft 31 drives the connecting plate 33 to rotate counterclockwise, the connecting plate 33 drives the second connecting roller 35 to rotate upward, the second connecting roller 35 pushes the grinding belt 23 to move upward, the second connecting roller 35 tensions the grinding belt 23 upward, and the contact area between the grinding belt 23 and the upper pressure roller 28 increases;

[0053] When the all-round grinding component 2 does not need to be polished, the grinding belt 23 is not restricted by the outer wall of the box girder steel membrane 1, and the grinding belt 23 between the arc-shaped pressure roller 25 and the top pressure roller 29 is in a relaxed state. The second driving motor 32 of the tensioning component 3 drives the horizontal axis 31 to rotate clockwise, and the horizontal axis 31 drives the connecting plate 33 to rotate clockwise. The connecting plate 33 drives the second connecting roller 35 to rotate downward, and the second connecting roller 35 pushes the grinding belt 23 to move downward. The second connecting roller 35 tensions the grinding belt 23 downward to prevent the grinding belt 23 from loosening and moving, and the overall space remains unchanged when tightened downward, and the space occupied is smaller than that of tightening upward.

[0054] A method for using a box beam steel mold grinding device comprises the following steps:

[0055] Step 1: The first support frame 21 of the all-round grinding assembly 2 is placed in the box beam steel film 1, the bottom pressure roller 27 presses the grinding belt 23 on the inner bottom of the box beam steel film 1, the arc-shaped pressure roller 25 presses the grinding belt 23 along the lower arc-shaped part of the box beam steel film 1, the side pressure roller 24 presses the grinding belt 23 on the inclined side wall of the box beam steel film 1, the top pressure roller 29 presses the grinding belt 23 on the top of the box beam steel film 1, the top pressure roller 29 and the side pressure roller 24 press the grinding belt 23 on the upper arc of the box beam steel film 1, and the second drive motor 3 of the tensioning assembly 3 is turned on. 2 drives the horizontal shaft 31 to rotate counterclockwise, the horizontal shaft 31 drives the connecting plate 33 to rotate counterclockwise, the connecting plate 33 drives the second connecting roller 35 to rotate upward, the second connecting roller 35 pushes the grinding belt 23 to move upward, the second connecting roller 35 tensions the grinding belt 23 upward, and the contact area between the grinding belt 23 and the upper pressure roller 28 is increased, the lateral part of the upper end inner side of the second supporting seat 49 of the supporting assembly of the moving assembly 4 is fitted and contacted with the outer edge bottom of the box beam steel film 1, and the omnidirectional grinding assembly 2 drives the wheel 41 to fit and contact with the guide groove 48;

[0056] Step 2: The third driving motor 47 drives the driving shaft 45 to rotate along the third supporting frame 46, and the driving shaft 45 drives the installation shaft 42 of the middle group to rotate through the second pulley assembly 44, and the installation shaft 42 of the middle group drives the wheel 41 of the middle group to rotate along the guide groove 48, and the other wheels 41 provide auxiliary support to the mounting frame 43. At the same time, the first driving motor 214 of the all-round grinding assembly 2 drives the connecting shaft 212 to drive, and the connecting shaft 212 drives the driving roller 211 to rotate through the first pulley assembly 215. Under the action of the two groups of upper pressure rollers 28, the driving roller 211 drives the grinding belt 23 to rotate along the side pressure roller 24, the arc-shaped pressure roller 25, the bottom pressure roller 27, the top pressure roller 29, the upper pressure roller 28, the driving roller 211 and the guide roller 213. The grinding belt 23 rotates on the inner wall of the box beam steel film 1 to perform contour grinding on the box beam steel film 1, so that the all-round grinding assembly 2 can perform contour grinding while moving, which is conducive to realizing rapid grinding of the box beam steel film 1.

[0057] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A box beam steel mold grinding device, comprising a moving component (4), characterized in that: The moving assembly (4) comprises a supporting guide assembly and a driving assembly. The left and right sides of the box beam steel membrane (1) are in close contact with the supporting guide assembly, and the supporting assembly is in limited movable connection with the driving assembly. An all-round grinding component (2) for profiling and grinding the box girder steel membrane (1) is connected between the driving components; The omnidirectional grinding assembly (2) is connected to a tensioning assembly (3) for tensioning the omnidirectional grinding assembly (2); The support guide assembly comprises a guide groove (48) and a second support seat (49); the second support seat (49) is provided with a guide groove (48) at the top; and the lateral portion of the inner side of the upper end of the second support seat (49) is in contact with the outer edge bottom of the box beam steel membrane (1); The moving assembly (4) comprises a wheel (41), a mounting shaft (42), a mounting frame (43), a second pulley assembly (44), a driving shaft (45), a third support frame (46) and a third driving motor (47); the mounting frame (43) is fixedly mounted at both ends of the omnidirectional grinding assembly (2); the top of the mounting frame (43) is fixedly connected to the third driving motor (47) and the third support frame (46); the output end of the third driving motor (47) is connected to the driving shaft (45), and the driving shaft (45) is rotatably connected to the third support frame (46) through a bearing; the bottom of the mounting frame (43) is rotatably connected to the mounting shaft (42) at an equal interval; the inner end of the mounting shaft (42) is fixedly connected to the wheel (41), and the wheel (41) is limitedly slidably connected to the guide groove (48); the mounting shaft (42) and the driving shaft (45) of the middle group are transmission-connected through the second pulley assembly (44); The omnidirectional grinding assembly (2) comprises a first support frame (21), a second support frame (22), a grinding belt (23), a side pressure roller (24), an arc-shaped pressure roller (25), a support plate (26), a bottom pressure roller (27), an upper pressure roller (28), a top pressure roller (29), a support seat (210), a driving roller (211), a connecting shaft (212), a guide roller (213), a first driving motor (214) and a first pulley assembly (215). The first support frame (21 ) the lower end of the inner wall is rotatably connected to bottom pressure rollers (27) at equal intervals, both ends of the inner wall at the lower end of the first support frame (21) are rotatably connected to arc-shaped pressure rollers (25), the side inner wall of the first support frame (21) is equidistantly connected to side pressure rollers (24), the inclination between adjacent side pressure rollers (24) is the same as the inclination of the inner wall of the box beam steel membrane (1), the upper ends of the first support frame (21) are fixedly connected to the second support frame (22), and the second support frame (22) is rotatably connected to the top pressure roller (29), the first Both sides of the upper end of the support frame (21) are fixedly connected to guide rollers (213); the top of the first support frame (21) is rotatably connected to a driving roller (211); the first support frame (21) is rotatably connected to upper pressure rollers (28) below both sides of the driving roller (211); a support plate (26) is fixedly connected inside the first support frame (21); a first driving motor (214) and a supporting seat (210) are fixedly connected to the support plate (26); an output end of the first driving motor (214) is connected to a connecting shaft ( 212), the connecting shaft (212) is rotatably connected to the support seat (210), the connecting shaft (212) is rotatably connected to the driving roller (211) through the first pulley assembly (215), the side pressure roller (24), the arc-shaped pressure roller (25), the bottom pressure roller (27), the top pressure roller (29), the upper pressure roller (28), the driving roller (211) and the guide roller (213) The outer wall is rotatably connected to the grinding belt (23), and the outer wall of the grinding belt (23) is in contact with the inner wall of the box beam steel membrane (1).

2. The box beam steel mold grinding device according to claim 1 is characterized in that: The inner side of the upper pressure roller (28) is located inside the outer side of the driving roller (211).

3. The box beam steel mold grinding device according to claim 2 is characterized in that: The mounting frame (43) is fixedly mounted on both ends of the top of the first supporting frame (21).

4. The box beam steel mold grinding device according to claim 3 is characterized in that: The tensioning assembly (3) comprises a transverse shaft (31), a second drive motor (32), a connecting plate (33), a first connecting roller (34) and a second connecting roller (35); the second drive motor (32) is fixedly connected to the outer wall of the first support frame (21); the output end of the second drive motor (32) is fixedly connected to the transverse shaft (31); the front and rear ends of the transverse shaft (31) are fixedly connected to the connecting plate (33); and the outer end of the connecting plate (33) is rotatably connected to the first connecting roller (34) and the second connecting roller (35).

5. The box beam steel mold grinding device according to claim 4 is characterized in that: The grinding belt (23) is located between the first connecting roller (34) and the second connecting roller (35).

6. The box beam steel mold grinding device according to claim 5 is characterized in that: The transverse shaft (31) is rotatably connected to the first support frame (21) via a bearing.

7. A method for using the box beam steel mold grinding device according to claim 6, characterized in that: The following steps are involved: Step 1: The first support frame (21) of the all-round grinding assembly (2) is placed inside the box beam steel film (1), the bottom pressure roller (27) presses the grinding belt (23) on the inner bottom of the box beam steel film (1), the arc-shaped pressure roller (25) presses the grinding belt (23) along the lower arc-shaped part of the box beam steel film (1), the side pressure roller (24) presses the grinding belt (23) on the inclined side wall of the box beam steel film (1), the top pressure roller (29) presses the grinding belt (23) on the top of the box beam steel film (1), the top pressure roller (29) and the side pressure roller (24) press the grinding belt (23) on the upper arc of the box beam steel film (1), and the second driving motor of the tensioning assembly (3) is The machine (32) drives the horizontal shaft (31) to rotate counterclockwise, the horizontal shaft (31) drives the connecting plate (33) to rotate counterclockwise, the connecting plate (33) drives the second connecting roller (35) to rotate upward, the second connecting roller (35) pushes the grinding belt (23) to move upward, the second connecting roller (35) tensions the grinding belt (23) upward, and the contact area between the grinding belt (23) and the upper pressure roller (28) is increased, the lateral part of the upper end inner side of the second supporting seat (49) of the supporting assembly of the moving assembly (4) is brought into contact with the outer edge bottom of the box beam steel membrane (1), and the omnidirectional grinding assembly (2) drives the wheel (41) to be brought into contact with the guide groove (48); Step 2: The third driving motor (47) drives the driving shaft (45) to rotate along the third supporting frame (46), and the driving shaft (45) drives the installation shaft (42) of the middle group to rotate through the second pulley assembly (44), and the installation shaft (42) of the middle group drives the wheels (41) of the middle group to rotate along the guide groove (48), and the other wheels (41) provide auxiliary support for the installation frame (43). At the same time, the first driving motor (214) of the omnidirectional grinding assembly (2) drives the connecting shaft (212), and the connecting shaft (212) drives the connecting shaft (212) through the first pulley assembly ( 215) drives the driving roller (211) to rotate. Under the action of the two sets of upper pressure rollers (28), the driving roller (211) drives the grinding belt (23) to rotate along the side pressure rollers (24), the arc-shaped pressure rollers (25), the bottom pressure rollers (27), the top pressure rollers (29), the upper pressure rollers (28), the driving rollers (211) and the guide rollers (213). The grinding belt (23) rotates on the inner wall of the box girder steel film (1) to perform contour grinding on the box girder steel film (1), so that the all-round grinding component (2) can perform contour grinding while moving, which is conducive to realizing rapid grinding of the box girder steel film (1).

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