A steel material outer surface treatment device for construction engineering and its use method

Abstract

The present invention relates to the field of construction engineering, and specifically to a steel material outer surface treatment device for construction engineering and a method for using the same, comprising a processing frame for guiding materials, a reduction motor fixedly installed near the rear of the lower end face of the processing frame, and a guide device fixedly installed at the lower end face of the processing frame directly opposite to the reduction motor, and a connecting device symmetrically rotated and clamped near the front of the lower end face of the processing frame. The present invention provides a guide device and a connecting device, and when the connecting steel is automatically polished, the reduction motor can synchronously drive the two groups of connecting devices to rotate through the guide device, so that when the guide device drives the pusher assembly to feed the connecting steel, the two groups of connecting devices can synchronously perform cyclic high-speed polishing on the connecting steel inside the processing frame, effectively improving the degree of automation of the equipment's polishing of the connecting steel.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering equipment, and in particular to a steel material outer surface treatment device for construction engineering and a method for using the device. Background Art

[0002] Before using the steel in construction projects, the surface of the steel needs to be polished to remove various debris or protrusions attached to the surface of the steel, improve the cleanliness of the steel surface, and facilitate subsequent assembly and positioning.

[0003] As disclosed in the invention patent with publication number: CN110625487A, the present invention discloses a device for treating the outer surface of steel for construction engineering, including a frame, a treating mechanism, a chip collecting plate, a limiting seat, a first fixed steel seat and a second fixed steel seat, a first servo motor is installed on one side of one end of the top of the frame, a first fixed steel seat is fixedly installed on one end of the top of the frame and located inside the first servo motor, a slide is installed on one side of the other end of the top of the frame, a second fixed steel seat is installed on the top of the slide, the bottom of the slide is fixedly connected to the telescopic end of the second pneumatic rod, and the bottom end of the second pneumatic rod is fixed on the frame; the present invention limits different sizes and specifications, which is convenient for subsequent treatment of the steel surface, and can adjust the treated grinding belt part according to the fixed steel of different sizes and specifications, to ensure that the grinding belt treatment process is close to the steel surface, and the steel surface is quickly treated in all directions, which greatly improves the efficiency of steel surface treatment.

[0004] Although the above invention can perform grinding operations on the outside of steel, the process of feeding the steel is extremely complicated and requires multiple manual positioning and limiting. At the same time, complex regulation is required during grinding, which reduces the degree of automation of the steel grinding equipment and also reduces the efficiency of subsequent steel grinding. Therefore, a steel outer surface treatment device for construction engineering and a method of using the same are needed to solve the problems raised above. Summary of the invention

[0005] The object of the present invention is to provide a steel material outer surface treatment device for construction engineering and a method of using the same, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for treating the outer surface of steel materials for construction engineering and a method for using the same, comprising a processing frame for guiding materials, a reduction motor being fixedly installed on the lower end surface of the processing frame near the rear, and a guide device being fixedly installed on the lower end surface of the processing frame opposite to the reduction motor, a connecting device being symmetrically rotated and clamped near the front of the lower end surface of the processing frame, two groups of the connecting devices being meshed and connected by a second transmission pulley, and the ends of the two groups of the connecting devices being meshed and connected to the guide device by a first transmission pulley, a pushing assembly being slidably clamped by the guide device near the rear of the inner end surface of the processing frame, and a grinding device being slidably clamped by the connecting device in front of the inner end surface of the processing frame, and connecting steel materials are symmetrically arranged on the inner end surface of the processing frame.

[0007] Preferably, the processing frame includes a loading guide rail, a mounting base, a fixed clamping seat, a fixed rack and a processing box body, the inner end surface of the processing box body is symmetrically provided with four groups of fixed racks for transmission, and the fixed clamping seat is symmetrically provided in the front of the lower end surface of the processing box body, the rear end surface of the processing box body is symmetrically provided with a loading guide rail, and the mounting base plate is fixedly connected to the lower end surface of the loading guide rail near the end head.

[0008] Preferably, the pushing assembly includes a fixed ring for limiting, a material guide plate for guiding is symmetrically arranged on the upper end surface of the fixed ring, and a connecting shaft is rotatably connected to the top of the inner end surface of the fixed ring, and a connecting slider is fixedly connected to the center of the lower end surface of the connecting shaft.

[0009] Preferably, the guide device includes a toothed belt wheel for support, a guide shaft is fixedly connected to the center of the lower end surface of the toothed belt wheel, and two sets of limiting grooves are symmetrically opened on the outer end surface of the guide shaft, and a connecting support shaft is fixedly connected to the center of the lower end surface of the guide shaft.

[0010] Preferably, the connecting device includes a supporting shaft, the side end surface of the supporting shaft is symmetrically provided with a positioning pulley for transmission, and two sets of positioning grooves are opened on the outer end surface of the supporting shaft, and the side end surface of the positioning pulley on one side is fixedly provided with a fixed pulley.

[0011] Preferably, the grinding device includes a fixed slide, which is provided with two groups, and the two groups of fixed slides are fixedly connected, the outer end surfaces of the two groups of fixed slides are evenly and equidistantly provided with four groups of positioning grooves, and the inner end surface of the fixed slide is provided with a limiting groove directly opposite to the positioning groove, the outer end surface of the fixed slide is evenly and equidistantly rotated and clamped with four groups of transmission gears through the four groups of positioning grooves, and a limiting clamping seat is fixedly connected at the center of the inner end surface of the transmission gear, a grinding turntable is detachably fixedly provided on the inner end surface of the limiting clamping seat, a fixed retaining ring is fixedly connected at the center of the lower end surface of the fixed slide, and a plug-in slide shaft is provided at the top of the inner end surface of the fixed retaining ring.

[0012] Preferably, the positioning groove is adapted to the plug-in sliding shaft, and the fixing clamping ring is adapted to the supporting rotating shaft, and the grinding device is slidably clamped on the inner end face of the processing frame by adapting the positioning groove to the plug-in sliding shaft and the fixing clamping ring to the supporting rotating shaft.

[0013] Preferably, the fixed collar is matched with the guide shaft, and the limiting groove is matched with the connecting slider, and the pushing assembly is matched with the guide shaft through the fixed collar, and the limiting groove is matched with the connecting slider, and then slidably clamped on the lower end surface of the loading guide rail.

[0014] Preferably, the outer end surface of the fixed rack is meshingly connected with the transmission gear, and the outer end surface of the grinding turntable is fit-extruded and connected with the outer end surface of the connecting steel.

[0015] A method for using a steel material outer surface treatment device for construction engineering comprises the following steps:

[0016] S1: Pre-loading the connecting steel. The staff can position the external connecting steel material guide device to the upper part of the feeding guide rail. The external guiding device will guide the connecting steel material to the upper part of the feeding guide rail at a fixed time to complete the pre-loading operation of the connecting steel material.

[0017] S2: Guide the connection steel for feeding. After a new group of connection steels of the external feeding equipment is positioned on the upper part of the feeding guide rail, the clamping shaft rotates at the tail end of the limiting slide through the connecting slider, so that the limiting slide can drive the guide card plate to move forward through the connecting slider, and the guide card plate can drive the falling connection steel to feed into the processing box;

[0018] S3: The connecting steel introduced into the processing box is cyclically polished. The reduction motor can synchronously drive the two sets of fixed pulleys to mesh and rotate through the toothed pulley and the first transmission pulley. The fixed pulleys guide the plug-in sliding shaft forward and backward through the positioning slide groove, so that the two sets of polishing devices can cooperate with the fixed rack to polish the connecting steel inside the processing box when they move forward and backward;

[0019] S4: During automatic unloading, the material guide plate can drive the falling connecting steel to feed into the processing box, and the connecting steel introduced from the outside into the processing box can push the polished connecting steel forward.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention provides a guide device and a connecting device. When the connecting steel is automatically ground, the reduction motor can synchronously drive the two groups of connecting devices to rotate through the guide device, so that when the guide device drives the pushing assembly to feed the connecting steel, the two groups of connecting devices can synchronously perform cyclic high-speed grinding on the connecting steel inside the processing frame, effectively improving the degree of automation of the equipment's grinding processing of the connecting steel.

[0022] 2. The present invention provides a grinding device. When the connecting steel is being ground, when the transmission gear circulates and moves inside the processing box, the fixed rack can drive the grinding turntable to rotate at high speed through the meshing relationship with the transmission gear, thereby automatically grinding the outside of the connecting steel, effectively improving the grinding efficiency and reducing the grinding cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0024] Figure 1 It is an exploded view of the main body of the present invention;

[0025] Figure 2 It is the main assembly diagram of the present invention;

[0026] Figure 3 It is a schematic diagram of the processing frame structure of the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the pusher assembly of the present invention;

[0028] Figure 5 It is a schematic diagram of the structure of the guide device of the present invention;

[0029] Figure 6 It is a schematic diagram of the structure of the connecting device of the present invention;

[0030] Figure 7 This is a disassembled diagram of the grinding device of the present invention;

[0031] Figure 8 It is a schematic structural diagram of the grinding device of the present invention.

[0032] In the figure: 1-connecting steel, 2-processing frame, 3-pushing assembly, 4-reduction motor, 5-guiding device, 6-first transmission pulley, 7-second transmission pulley, 8-connecting device, 9-grinding device, 21-feeding guide rail, 22-mounting base plate, 23-fixed card seat, 24-fixed rack, 25-processing box, 31-clamping shaft, 32-guide card plate, 33-fixed sleeve, 34-connecting slider, 51-toothed pulley, 52-guide shaft, 53-limiting slide, 54-connecting support shaft, 81-positioning pulley, 82-support shaft, 83-positioning slide, 84-fixed pulley, 91-grinding turntable, 92-limiting card seat, 93-transmission gear, 94-fixed snap ring, 95-plug-in slide, 96-limiting rotating groove, 97-positioning rotating groove, 98-fixed slide. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0034] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0035] The present invention is further described below in conjunction with the accompanying drawings.

[0036] Example 1

[0037] See also Figure 1-8 , an embodiment of the present invention is: a steel surface treatment device for construction engineering and a method of using the same, comprising a processing frame 2 for guiding materials, a reduction motor 4 is fixedly installed on the lower end surface of the processing frame 2 near the rear, and a guide device 5 is fixedly installed on the lower end surface of the processing frame 2 opposite to the reduction motor 4, a connecting device 8 is symmetrically rotated and clamped near the front of the lower end surface of the processing frame 2, two groups of connecting devices 8 are meshed and connected through a second transmission pulley 7, and the ends of the two groups of connecting devices 8 are meshed and connected with the guide device 5 through a first transmission pulley 6, a pushing assembly 3 is slidably clamped on the inner end surface of the processing frame 2 near the rear through the guide device 5, and a grinding device 9 is slidably clamped on the front of the inner end surface of the processing frame 2 through the connecting device 8, and a connecting steel 1 is symmetrically arranged on the inner end surface of the processing frame 2.

[0038] like Figure 3 The processing frame 2 includes a loading guide rail 21, a mounting base plate 22, a fixed clamping seat 23, a fixed rack 24 and a processing box 25. Four groups of fixed racks 24 for transmission are symmetrically arranged on the inner end surface of the processing box 25, and the fixed clamping seat 23 is symmetrically arranged in front of the lower end surface of the processing box 25. The loading guide rail 21 is symmetrically arranged on the rear end surface of the processing box 25, and the mounting base plate 22 is fixedly connected to the lower end surface of the loading guide rail 21 near the end.

[0039] like Figure 4 The pusher assembly 3 includes a fixed collar 33 for limiting position, a guide plate 32 for guiding is symmetrically arranged on the upper end surface of the fixed collar 33, and a connecting shaft 31 is rotatably connected to the top of the inner end surface of the fixed collar 33, and a connecting slider 34 is fixedly connected to the center of the lower end surface of the connecting shaft 31.

[0040] like Figure 5 The guide device 5 includes a toothed belt wheel 51 for support, a guide shaft 52 is fixedly connected to the center of the lower end surface of the toothed belt wheel 51, and two groups of limiting sliding grooves 53 are symmetrically opened on the outer end surface of the guide shaft 52, and a connecting support shaft 54 ​​is fixedly connected to the center of the lower end surface of the guide shaft 52.

[0041] like Figure 6 The connecting device 8 includes a supporting shaft 82, and a positioning pulley 81 for transmission is symmetrically arranged on the side end surface of the supporting shaft 82, and two sets of positioning grooves 83 are opened on the outer end surface of the supporting shaft 82, and a fixed pulley 84 is fixedly arranged on the side end surface of the positioning pulley 81 on one side.

[0042] like Figure 7 and Figure 8The grinding device 9 includes a fixed slide 98, which is provided with two groups, and the two groups of fixed slides 98 are fixedly connected, and the outer end surfaces of the two groups of fixed slides 98 are evenly and equidistantly provided with four groups of positioning grooves 97, and the inner end surface of the fixed slide 98 is provided with a limited rotation groove 96 just opposite to the positioning groove 97. The outer end surface of the fixed slide 98 is evenly and equidistantly rotated and connected with four groups of transmission gears 93 through the four groups of positioning grooves 97, and the limited clamping seat 92 is fixedly connected at the center of the inner end surface of the transmission gear 93, and a grinding turntable 91 is detachably fixedly provided on the inner end surface of the limited clamping seat 92, a fixed retaining ring 94 is fixedly connected at the center of the lower end surface of the fixed slide 98, and a plug-in slide shaft 95 is provided at the top of the inner end surface of the fixed retaining ring 94.

[0043] like Figure 5 and Figure 6 The positioning groove 83 is adapted to the plug-in slide shaft 95, and the fixed snap ring 94 is adapted to the supporting rotating shaft 82. The grinding device 9 is slidably connected to the inner end surface of the processing frame 2 through the positioning groove 83 and the plug-in slide shaft 95, and the fixed snap ring 94 is adapted to the supporting rotating shaft 82. When transmitting, the radius of the toothed belt pulley 51 is greater than the radius of the fixed belt pulley 84, so that the toothed belt pulley 51 can drive the fixed belt pulley 84 to rotate several times after one rotation, so that the fixed belt pulley 84 can drive the grinding device 9 through the positioning groove 83 to perform multiple cycles of grinding on the connected steel 1 inside the processing box 25, thereby improving the grinding efficiency.

[0044] like Figure 4 and Figure 5 The fixed collar 33 is matched with the guide shaft 52, and the limiting groove 53 is matched with the connecting slider 34. The pushing assembly 3 is slidably connected to the lower end surface of the feeding guide rail 21 through the fixed collar 33 and the limiting groove 53, and the connecting slider 34 is matched. The connecting slider 34 can be slidably connected to the inside of the limiting groove 53. At the same time, the length of the connecting slider 34 is greater than the distance between the two groups of limiting grooves 53, which can make the connecting slider 34 guided along the internal path of the single limiting groove 53, thereby improving the stability of displacement.

[0045] like Figure 3 and Figure 7 The outer end surface of the fixed rack 24 is meshed with the transmission gear 93, and the outer end surface of the grinding turntable 91 is fitted and extruded with the outer end surface of the connecting steel 1. When performing the grinding operation, the grinding device 9 can cyclically displace inside the processing box 25. The four sets of fixed racks 24 can provide sufficient transmission basis for the displaced transmission gear 93, thereby improving the efficiency of the grinding device 9 in grinding the outside of the connecting steel 1 when displaced.

[0046] A method for using a steel material outer surface treatment device for construction engineering comprises the following steps:

[0047] S1: Pre-loading the connecting steel 1. The staff can position the external material guide device of the connecting steel 1 to the upper part of the loading guide rail 21. The external material guide device regularly guides the connecting steel 1 to the upper part of the loading guide rail 21 to complete the pre-loading operation of the connecting steel 1.

[0048] S2: The connecting steel 1 is guided for feeding. After a new group of connecting steel 1 of the external feeding device is positioned on the upper part of the feeding guide rail 21, the clamping shaft 31 rotates at the tail end of the limiting slide 53 through the connecting slider 34, so that the limiting slide 53 can drive the guide card plate 32 to move forward through the connecting slider 34, and the guide card plate 32 can drive the falling connecting steel 1 to feed into the processing box 25;

[0049] S3: The connection steel material 1 introduced into the processing box 25 is cyclically polished. The reduction motor 4 can synchronously drive the two sets of fixed pulleys 84 to mesh and rotate through the toothed pulley 51 and the first transmission pulley 6. The fixed pulley 84 guides the plug-in slide shaft 95 forward and backward through the positioning slide groove 83, so that the two sets of polishing devices 9 can cooperate with the fixed rack 24 to polish the connection steel material 1 inside the processing box 25 when they move forward and backward;

[0050] S4: When the material is automatically unloaded, the material guide clamping plate 32 can drive the falling connection steel 1 to feed into the processing box 25, and the connection steel 1 introduced from the outside into the processing box 25 can push the polished connection steel 1 forward.

[0051] Working principle: Before use, the user can position the material guide device connected to the steel material 1 externally to the upper part of the feeding guide rail 21, so as to facilitate the subsequent rapid material guide operation inside the feeding guide rail 21. When performing the grinding operation, the user can start the reduction motor 4 through the external control device. At this time, the reduction motor 4 can drive the internal guide device 5 to rotate. At the same time, when the guide device 5 rotates, the guide shaft 52 can synchronously drive the limit slide 53 and the toothed belt wheel 51 to rotate. When the toothed belt wheel 51 rotates, the toothed belt wheel 51 can The first transmission pulley 6 synchronously drives the two sets of fixed pulleys 84 to mesh and rotate, and at the same time, the fixed pulley 84 can drive the supporting shaft 82 to rotate, so that the supporting shaft 82 can synchronously drive the two sets of positioning slots 83 to rotate. Since the positioning slots 83 are closed loop tracks, the two sets of positioning slots 83 can guide the lower end surface of the plug-in slide shaft 95 and then the grinding device 9 through the positioning slots 83 when rotating, so that the grinding device 9 can be limited by the positioning slots 83 and cyclically move back and forth inside the processing box 25. At the same time, since the outsides of the four groups of transmission gears 93 are all meshed with the fixed rack 24 inside the processing box 25, when the grinding device 9 is displaced inside the processing box 25, the fixed rack 24 can drive the transmission gear 93 to mesh and rotate, so that the transmission gear 93 can drive the internal limit card seat 92 to rotate at a high speed, and at the same time, the limit card seat 92 can drive the internal grinding turntable 91 to rotate at a high speed, so that the four groups of grinding turntables 91 connected to the outside of the steel 1 can circulate inside the processing box 25 to grind the outside of the connected steel 1. When the plate 32 moves to the rear part of the loading guide rail 21, a new group of connecting steel materials 1 of the external feeding equipment is positioned to the upper part of the loading guide rail 21. At this time, the clamping shaft 31 rotates at the tail end of the limiting slide groove 53 through the connecting slider 34, so that the limiting slide groove 53 can drive the guide card plate 32 to move forward through the connecting slider 34, and the guide card plate 32 can drive the falling connecting steel materials 1 to feed into the processing box 25. At this time, the connecting steel materials 1 fed into the processing box 25 can push the polished connecting steel materials 1 to the front, which is convenient for the staff to carry out the collection operation.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel material outer surface treatment device for construction engineering, comprising a processing frame (2) for guiding materials, a reduction motor (4) being fixedly mounted on the lower end surface of the processing frame (2) near the rear, and a guide device (5) being fixedly mounted on the lower end surface of the processing frame (2) directly opposite to the reduction motor (4), and a connecting device (8) being symmetrically rotated and clamped on the lower end surface of the processing frame (2) near the front, characterized in that: The two groups of connecting devices (8) are meshedly connected via a second transmission pulley (7), and the ends of the two groups of connecting devices (8) are meshedly connected to the guide device (5) via a first transmission pulley (6); a pusher assembly (3) is slidably engaged with the guide device (5) near the rear of the inner end surface of the processing frame (2), and a grinding device (9) is slidably engaged with the connecting device (8) at the front of the inner end surface of the processing frame (2); and a connecting steel (1) is symmetrically arranged on the inner end surface of the processing frame (2); The connecting device (8) comprises a supporting shaft (82), a lateral end surface of the supporting shaft (82) being symmetrically provided with a positioning pulley (81) for transmission, and two groups of positioning grooves (83) being provided on the outer end surface of the supporting shaft (82), and a fixed pulley (84) being fixedly provided on the lateral end surface of the positioning pulley (81) on one side; The grinding device (9) comprises a fixed slide (98), wherein the fixed slide (98) is provided with two groups in total, and the two groups of the fixed slides (98) are fixedly connected to each other, and the outer end surfaces of the two groups of the fixed slides (98) are evenly and equidistantly provided with four groups of positioning grooves (97), and the inner end surface of the fixed slide (98) is provided with a limited position groove (96) directly opposite to the positioning groove (97), and the outer end surface of the fixed slide (98) is evenly and equidistantly rotated and connected with four groups of transmission gears (93) through the four groups of positioning grooves (97), and the limited position clamping seat (92) is fixedly connected at the center of the inner end surface of the transmission gear (93), and a grinding turntable (91) is detachably fixedly provided at the inner end surface of the limited position clamping seat (92), and a fixed clamping ring (94) is fixedly connected at the center of the lower end surface of the fixed slide (98), and a plug-in slide shaft (95) is provided at the top of the inner end surface of the fixed clamping ring (94); The positioning slide groove (83) is matched with the plug-in slide shaft (95), and the fixing clamp ring (94) is matched with the supporting rotating shaft (82). The grinding device (9) is slidably clamped on the inner end surface of the processing frame (2) by matching the positioning slide groove (83) with the plug-in slide shaft (95) and matching the fixing clamp ring (94) with the supporting rotating shaft (82).

2. The device for treating the outer surface of steel materials for construction engineering according to claim 1, characterized in that: The processing frame (2) comprises a feeding guide rail (21), a mounting base plate (22), a fixed clamping seat (23), a fixed rack (24) and a processing box (25); the inner end surface of the processing box (25) is symmetrically provided with four groups of fixed racks (24) for transmission, and the fixed clamping seat (23) is symmetrically provided at the front of the lower end surface of the processing box (25); the rear end surface of the processing box (25) is symmetrically provided with a feeding guide rail (21), and the mounting base plate (22) is fixedly connected to the lower end surface of the feeding guide rail (21) near the end.

3. The device for treating the outer surface of steel materials for construction engineering according to claim 2, characterized in that: The pusher assembly (3) comprises a fixed collar (33) for limiting position, a guide plate (32) for guiding is symmetrically arranged on the upper end surface of the fixed collar (33), a clamping shaft (31) is rotatably clamped at the top of the inner end surface of the fixed collar (33), and a connecting slider (34) is fixedly connected at the center of the lower end surface of the clamping shaft (31).

4. The device for treating the outer surface of steel materials for construction engineering according to claim 3, characterized in that: The guide device (5) comprises a toothed belt wheel (51) for supporting, a guide shaft (52) is fixedly connected at the center of the lower end surface of the toothed belt wheel (51), two groups of limiting sliding grooves (53) are symmetrically provided on the outer end surface of the guide shaft (52), and a connecting support shaft (54) is fixedly connected at the center of the lower end surface of the guide shaft (52).

5. The device for treating the outer surface of steel materials for construction engineering according to claim 4, characterized in that: The fixing collar (33) is matched with the guide shaft (52), and the limiting slide groove (53) is matched with the connecting slider (34). The pusher assembly (3) is slidably engaged with the lower end surface of the loading guide rail (21) through the fixing collar (33) being matched with the guide shaft (52), and the limiting slide groove (53) being matched with the connecting slider (34).

6. The device for treating the outer surface of steel materials for construction engineering according to claim 5, characterized in that: The outer end surface of the fixed rack (24) is meshedly connected to the transmission gear (93), and the outer end surface of the grinding turntable (91) is fitted and extrudedly connected to the outer end surface of the connecting steel (1).

7. A method for using a steel material outer surface treatment device for construction engineering according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1: Pre-loading the connecting steel (1), the staff can position the external connecting steel (1) guiding device to the upper part of the feeding guide rail (21), and the external guiding device regularly guides the connecting steel (1) to the upper part of the feeding guide rail (21), thereby completing the pre-loading operation of the connecting steel (1); S2: The connecting steel (1) is guided for feeding. After a new group of connecting steel (1) of the external feeding device is positioned on the upper part of the feeding guide rail (21), the clamping shaft (31) rotates at the tail end of the limiting slide groove (53) through the connecting slider (34), so that the limiting slide groove (53) can drive the guide plate (32) to move forward through the connecting slider (34), and the guide plate (32) can drive the falling connecting steel (1) to feed into the processing box (25); S3: The connecting steel (1) introduced into the processing box (25) is subjected to cyclic grinding. The reduction motor (4) can synchronously drive the two sets of fixed pulleys (84) to mesh and rotate through the toothed pulley (51) and the first transmission pulley (6). The fixed pulley (84) guides the plug-in slide shaft (95) forward and backward through the positioning slide groove (83), so that the two sets of grinding devices (9) can cooperate with the fixed rack (24) to grind the connecting steel (1) inside the processing box (25) when they move forward and backward; S4: When the material is automatically unloaded, the material guide plate (32) can drive the falling connection steel (1) to feed into the processing box (25), and the connection steel (1) introduced from the outside into the processing box (25) can push the polished connection steel (1) forward.

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