Prefabricated part machining device for building construction and machining method thereof

Abstract

The invention discloses a prefabricated part machining device for building construction and a machining method thereof, and relates to the field of prefabricated part machining.The prefabricated part machining device comprises a machining disc, a connecting piece is fixedly arranged on the circumferential inner wall of the machining disc, an inner gear is arranged at the bottom of the connecting piece, the connecting piece is fixedly connected to the machining disc, and a sliding block is fixedly arranged at the bottom of the machining disc; a supporting sliding rail is installed on the outer side of the sliding block, an inner connecting base is fixedly connected to the end of the connecting piece, supporting pieces are installed on the surfaces of the inner connecting base and the connecting piece, a prefabricated welding auxiliary mechanism is magnetically connected to the supporting pieces, the prefabricated welding auxiliary mechanism comprises an inner connecting disc covering the supporting pieces, and an outer connecting frame A is installed on one side of the inner connecting disc. According to the prefabricated part machining device for building construction and the machining method of the prefabricated part machining device, angular deviation during manual supporting is avoided; after welding, the perpendicularity of eight groups of vertical steel bars reaches the standard, the design requirement of vertical stress in a building structure is met, and the mechanical property of a prefabricated part is improved; for example, the compression resistance and shear resistance are improved.

Description

Technical Field

[0001] The present invention relates to the field of prefabricated component processing, in particular to a prefabricated component processing device for building construction and a processing method thereof. Background Art

[0002] Prefabricated components for construction refer to building components that are prefabricated in a factory or prefabrication site and then assembled and installed on site. These components can include beams, columns, floor slabs, wall panels, stairs, balconies, and other building components, and are typically made of concrete, steel, wood, or other materials. The use of prefabricated components can improve construction efficiency, reduce on-site construction time, lower labor costs, ensure component quality, and contribute to environmental protection and the reduction of construction waste. Prefabricated components are widely used in various construction projects, including residential and commercial buildings, bridges, and tunnels, and are an important part of modern building industrialization.

[0003] The existing patent with publication number CN118081372A discloses a prefabricated component processing device for construction, which includes a steel bar conveying device, a lower opening movable door and an upper opening movable door; the steel bar conveying device is provided on the right side of the basic frame; the lower pressing member is provided with a plurality of upper rectangular grooves with downward openings; the lower pressing member is rotatably connected to a plurality of lower opening movable doors, the lower surfaces of the lower opening movable doors are flush with the lower surface of the lower pressing member, and the lower opening movable doors close the lower openings of the corresponding upper rectangular grooves; a torsion spring is connected between each lower opening movable door and the lower pressing member; the support member is provided with a plurality of openings. The lower rectangular groove has an upward opening, and the positions of the lower rectangular groove and the upper rectangular groove correspond to each other one by one; the support is rotatably connected to a plurality of upward-opening movable doors, the upper surfaces of the upper-opening movable doors are flush with the upper surface of the support, and the upper-opening movable doors close the upper opening of the lower rectangular groove; a torsion spring is connected between each upward-opening movable door and the support, which can solve the problem that when placing a thin-walled steel plate with holes, the thin-walled steel plate with holes will bend downward due to gravity, resulting in the thin-walled steel plate with holes corresponding to the positioning column with a slightly concave curved surface, and some holes will not be able to face the positioning column, resulting in a problem of fixation failure;

[0004] However, during the construction of high-speed railways, a large number of embedded parts are needed. These embedded parts are composed of a metal plate and multiple groups of "L"-shaped steel bars welded together. During the actual processing, multiple groups of "L"-shaped steel bars need to be welded one by one, and during welding, they need to be manually held to prevent the steel bars from tilting during welding, which directly reduces the processing efficiency of the prefabricated parts. Summary of the Invention

[0005] The object of the present invention is to provide a prefabricated component processing device and a processing method for building construction, so as to solve the defects mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, a prefabricated part processing device and a processing method for building construction are provided, including a processing disk, a connecting plate is fixedly provided on the circumferential inner wall of the processing disk, an internal gear is provided at the bottom of the connecting plate, the connecting plate is fixedly connected to the processing disk, a slider is fixedly provided at the bottom of the processing disk, a supporting slide rail is installed on the outer side of the slider, an inner seat is fixedly connected to the end of the connecting plate, a support plate is installed on the surface of the inner seat and the connecting plate, a prefabricated welding auxiliary mechanism is magnetically connected to the support plate, the prefabricated welding auxiliary mechanism includes an inner disk covering the support plate, an external frame A is installed on one side of the inner disk, and an external frame B is installed on the other side of the inner disk.

[0007] Furthermore, the processing disk is arranged in a ring shape, and the inner wall of the processing disk is fixedly connected to the internal seat through three groups of connecting plates. The internal seat and the processing disk are concentric circle structures. Three groups of support plates are evenly distributed on the processing disk. The three groups of support plates are all provided with prefabricated welding auxiliary mechanisms, and multiple groups of vertical steel bars are interspersed on the prefabricated welding auxiliary mechanisms.

[0008] Furthermore, a prefabricated bottom plate is provided at the bottom of the vertical steel bar, and a reinforcement seat is fixedly provided on the surface of the prefabricated bottom plate. The reinforcement seat is arranged in a cross shape, and a bushing is fixedly provided on the upper circumferential outer wall of the vertical steel bar, and a limiting block is fixedly provided on the circumferential outer wall of the bushing.

[0009] Furthermore, a driving gear is installed on the inner side of the internal gear, the sizes of the driving gear and the internal gear are matched, the internal gear is meshed with the driving gear, and a driving motor is installed on the upper side of the driving gear. The output shaft of the driving motor is fixed to the rotating shaft of the driving gear through a coupling, and the driving motor is screwed and fixed on the connecting plate. The connecting plate has a fan-shaped structure, and the driving motor drives the processing disk to rotate through the driving gear and the internal gear. The processing disk rotates 120 degrees each time.

[0010] Furthermore, five groups of sliders are evenly installed on the bottom of the processing disk. The sliders are adapted to the size of the supporting slide rails. The sliders are slidably arranged inside the supporting slide rails. The supporting slide rails are annular in structure. Five groups of support frames are evenly installed on the bottom of the supporting slide rails.

[0011] Furthermore, the prefabricated welding auxiliary mechanism also includes a docking seat, a docking groove and a steel bar limiting hole. Eight groups of steel bar limiting holes are evenly arranged on the prefabricated welding auxiliary mechanism. Vertical steel bars are interspersed inside the steel bar limiting holes. The steel bar limiting holes include a first clamping hole, a second clamping hole and a limiting mouth. Eight groups of first clamping holes are evenly opened on the outside of the inner plate. A limiting mouth is opened on the circumferential inner wall of the first clamping hole. Second clamping holes distributed equidistantly are opened on the inner wall of the external frame A and the external frame B.

[0012] Furthermore, the internal connecting plate is square, and two sets of docking seats are fixedly provided on both sides of the internal connecting plate. Two sets of docking grooves are opened on the inner walls of the external frame A and the external frame B. The docking seats are inserted into the inside of the docking grooves, and the docking seats and the docking grooves are both arranged in an isosceles trapezoid.

[0013] Furthermore, the external frame A and the external frame B are positioned and installed on the outside of the internal tray through a docking seat and a docking groove, and handles are installed on both sides of the surface of the internal tray, and the handles are "U" shaped.

[0014] A method for processing prefabricated parts for building construction, comprising the following steps:

[0015] S1: First, multiple groups of vertical steel bars to be welded to the prefabricated base plate are inserted into multiple groups of steel bar limiting holes provided on the prefabricated welding auxiliary mechanism, and the prefabricated base plate is pre-placed on the welding station;

[0016] S2: Start the external switch of the drive motor. The drive motor drives the processing disk to rotate through the drive gear and the internal gear. When the processing disk rotates, it drives the eight groups of vertical steel bars that need to be welded to cover the top of the reinforcement seat.

[0017] S3: The worker holds a welding gun and welds the bottom of eight sets of "L"-shaped vertical steel bars to the reinforcement seat. Then, the drive motor is turned on again. The welded prefabricated bottom plate is moved out of the welding station, and the unwelded vertical steel bars are moved to the welding station. A new prefabricated bottom plate is placed at the bottom of the welding station.

[0018] S4: After the prefabricated base plate is welded, the inner connecting plate, outer connecting frame A and outer connecting frame B on the outside of the eight groups of vertical steel bars are separated to obtain a complete prefabricated building construction part;

[0019] S5: Prefabricated parts for construction need to be polished after welding to ensure the quality, safety and durability of the components; eliminate surface protrusions such as weld bumps, welding slag spatter, and burrs to make the surface of the weld joint smooth. If there are sharp burrs on the weld surface, stress concentration points may form when the component is under stress, causing cracks to expand; ensure that the surface flatness of the prefabricated parts meets the design requirements. The polished surface is easier to adhere to the anti-corrosion coating, thereby improving the protection effect.

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

[0021] 1. In this application, the positions of multiple groups of steel bar limiting holes on the prefabricated welding auxiliary mechanism are consistent with the positions to be welded on the surface of the prefabricated bottom plate. The worker holds the welding gun and welds the bottom of eight groups of "L"-shaped vertical steel bars to the reinforcement seat. The positioning and welding of the eight groups of vertical steel bars are achieved through the setting of the processing disk and the prefabricated welding auxiliary mechanism, avoiding manual hand-held operation; reducing the labor intensity of workers and reducing labor costs; avoiding fluctuations in welding quality caused by fatigue and operating errors during manual operation; the eight groups of vertical steel bars are always kept at 90 degrees perpendicular to the prefabricated bottom plate: the prefabricated welding auxiliary mechanism ensures a constant angle to avoid angle deviation during manual support; after welding, the verticality of the eight groups of vertical steel bars meets the standard, meets the design requirement of "vertical force" in the building structure, and improves the mechanical properties of the prefabricated parts, such as compressive and shear strength;

[0022] 2. This application uses mechanical positioning to ensure that the welding contact surface between the bottom ends of the eight sets of vertical steel bars and the prefabricated base plate is flat and tightly fitted, avoiding defects such as loose welding, weld bumps, and air holes caused by tilting. There is no need for subsequent manual correction of welding positions, saving rework costs. After welding is completed, the prefabricated base plate is automatically removed, and the new base plate and the eight unwelded sets of vertical steel bars are simultaneously put in place, realizing assembly line operation. This reduces the time loss of manual handling and positioning, shortening the production cycle of a single prefabricated part. It can achieve 24-hour continuous production and is suitable for large-scale industrial prefabrication scenarios such as the production of prefabricated building components.

[0023] 3. This application uses eight groups of "L"-shaped vertical steel bars for welding, and there is no need for manual welding. The angle between the vertical steel bars and the bottom plate of the prefabricated part is always 90 degrees, so that the bottom end of the vertical steel bar is welded to the position of the bottom plate of the prefabricated part. The welding surface will not tilt, and the welded vertical steel bars will not tilt either; stress concentration caused by angle tilt is avoided, and hidden dangers such as cracking and deformation of the structure during use are prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a cross-sectional view of the structural prefabricated component processing device of the present invention;

[0025] Figure 2 A three-dimensional diagram of the structural prefabricated component processing device of the present invention;

[0026] Figure 3 The structure of the present invention Figure 2 Bottom view of

[0027] Figure 4 The structure of the present invention Figure 2 Side view of

[0028] Figure 5 This is a schematic diagram of the structural prefabrication welding auxiliary mechanism of the present invention;

[0029] Figure 6 The structure of the present invention Figure 5 A top view of

[0030] Figure 7 This is a schematic diagram of the internal receiving plate and its installation structure of the present invention;

[0031] Figure 8 This is an exploded view of the internal plate and its installation structure of the structure of the present invention.

[0032] [reference numerals]

[0033] 1. Processing disc; 11. Connecting plate; 12. Internal seat; 2. Slider; 3. Support rail; 31. Support frame; 4. Internal gear; 41. Drive gear; 42. Drive motor; 5. Prefabricated base plate; 51. Reinforcement seat; 52. Vertical steel bar; 521. Bushing; 522. Limit block; 53. Support plate; 6. Prefabricated welding auxiliary mechanism; 61. Internal disc; 62. Docking seat; 63. Docking groove; 64. External frame A; 65. External frame B; 66. Rebar limiting hole; 661. First clamping hole; 662. Second clamping hole; 663. Limit opening. DETAILED DESCRIPTION

[0034] Specific implementation method 1: Please refer to Figures 1-8 The present invention provides a technical solution: a prefabricated part processing device for building construction and a processing method thereof, comprising a processing disk 1, a connecting piece 11 is fixedly provided on the circumferential inner wall of the processing disk 1, an internal gear 4 is provided at the bottom of the connecting piece 11, the connecting piece 11 is fixedly connected to the processing disk 1, a slider 2 is fixedly provided at the bottom of the processing disk 1, a supporting slide rail 3 is installed on the outer side of the slider 2, an inner seat 12 is fixedly connected to the end of the connecting piece 11, a support piece 53 is installed on the surface of the inner seat 12 and the connecting piece 11, a prefabricated welding auxiliary mechanism 6 is magnetically connected to the support piece 53, the prefabricated welding auxiliary mechanism 6 comprises an inner disk 61 covering the support piece 53, an external frame A64 is installed on one side of the inner disk 61, and an external frame B65 is installed on the other side of the inner disk 61.

[0035] Working principle: When in actual use, first, the multiple groups of vertical steel bars 52 that need to be welded on the prefabricated base plate 5 are inserted into the multiple groups of steel bar limiting holes 66 opened on the prefabricated welding auxiliary mechanism 6, and the prefabricated base plate 5 is pre-placed on the welding station; the positions of the multiple groups of steel bar limiting holes 66 on the prefabricated welding auxiliary mechanism 6 are consistent with the positions to be welded on the surface of the prefabricated base plate 5. At this time, the external switch of the drive motor 42 is started, and the drive motor 42 drives the drive gear 41 to rotate, and the drive gear 41 drives the internal gear 4 to rotate, and the internal gear 4 can drive the processing disk 1 to rotate. When the processing disk 1 rotates, the five groups of sliders 2 at the bottom thereof are slidably arranged inside the supporting slide rail 3, which can rotate the processing disk. 1 is limited and guided to ensure the stability of the processing disk 1 when rotating; the driving motor 42 drives the processing disk 1 to rotate through the driving gear 41 and the internal gear 4. When the processing disk 1 rotates, it drives the eight groups of vertical steel bars 52 that need to be welded to cover the top of the reinforcement seat 51; at this time, the staff holds the welding gun and welds the bottom of the eight groups of "L"-shaped vertical steel bars 52 to the reinforcement seat 51, and then starts the switch of the driving motor 42 again. The welded prefabricated bottom plate 5 is moved out of the welding station, and the unwelded vertical steel bars 52 are moved to the welding station, and a new prefabricated bottom plate 5 is placed at the bottom of the welding station; when the eight groups of "L"-shaped vertical steel bars 52 are welded, there is no need for manual hand-welding, and the vertical steel bars 52 and the prefabricated The angle between the bottom plates 5 of the prefabricated parts is always 90 degrees, so that the bottom end of the vertical steel bar 52 is welded to the position on the bottom plate 5 of the prefabricated part, and the welding surface will not tilt, and the welded vertical steel bar 52 will not tilt either; the positioning and welding of the eight groups of vertical steel bars 52 are realized by setting the processing disk 1 and the prefabricated welding auxiliary mechanism 6, avoiding manual hand-held operation; reducing the labor intensity of workers and reducing labor costs; avoiding fluctuations in welding quality caused by fatigue and operating errors during manual operation; the eight groups of vertical steel bars 52 are always kept at 90 degrees to the bottom plate 5 of the prefabricated part: the prefabricated welding auxiliary mechanism 6 is used to ensure that the angle is constant, avoiding angle deviation during manual support; after welding, the verticality of the eight groups of vertical steel bars 52 meets the standard, meeting the design of "vertical force" in the building structure Requirements, improve the mechanical properties of prefabricated parts; such as compressive and shear strength; avoid stress concentration caused by angle tilt, and prevent hidden dangers such as cracking and deformation of the structure during use; use mechanical positioning to ensure that the welding contact surface between the bottom end of the eight groups of vertical steel bars 52 and the prefabricated bottom plate 5 is flat and tightly fitted, avoiding defects such as loose welding, weld bumps, and air holes caused by tilt; no subsequent manual correction of the welding position is required, saving rework costs; after welding is completed, the prefabricated bottom plate 5 is automatically removed, and the new bottom plate and the unwelded eight groups of vertical steel bars 52 are synchronously in place to realize assembly line operation; reduce the time loss of manual handling and positioning, and shorten the production cycle of a single prefabricated part; can achieve 24-hour continuous production, suitable for large-scale industrial prefabrication scenarios such as prefabricated building component production;After the prefabricated base plate 5 is welded, the inner connecting plate 61, the outer connecting frame A64 and the outer connecting frame B65 outside the eight groups of vertical steel bars 52 are disassembled to obtain a complete prefabricated building construction part; the specific disassembly method of the prefabricated welding auxiliary mechanism 6 is as follows: first, hold the two groups of handles on the inner connecting plate 61 to take the inner connecting plate 61 out from the inside of the outer connecting frame A64 and the outer connecting frame B65, and then pull the outer connecting frame A64 and the outer connecting frame B65 outward respectively to separate the outer connecting frame A64, the outer connecting frame B65 and the inner connecting plate 61 from the vertical steel bars 52. At this time, after the vertical steel bars 52, the reinforcement seat 51 and the prefabricated base plate 5 are welded, a completed prefabricated part is formed, and then it can be taken out from the bottom of the processing plate 1;

[0036] Specific embodiment 2: This embodiment is a further limitation of specific embodiment 1. The processing disk 1 is arranged in a ring shape. The inner wall of the processing disk 1 is fixedly connected to the internal seat 12 through three groups of connecting plates 11. The internal seat 12 and the processing disk 1 are concentric circle structures. Three groups of support plates 53 are evenly distributed on the processing disk 1. Prefabricated welding auxiliary mechanisms 6 are provided on the three groups of support plates 53. Multiple groups of vertical steel bars 52 are interspersed on the prefabricated welding auxiliary mechanisms 6.

[0037] Specific embodiment three: This embodiment is a further limitation of specific embodiment two. A prefabricated base plate 5 is provided at the bottom of the vertical steel bar 52. A reinforcement seat 51 is fixedly provided on the surface of the prefabricated base plate 5. The reinforcement seat 51 is cross-shaped. A bushing 521 is fixedly provided on the upper circumferential outer wall of the vertical steel bar 52. A limiting block 522 is fixedly provided on the circumferential outer wall of the bushing 521.

[0038] Specific embodiment four: This embodiment is a further limitation of specific embodiment one. A driving gear 41 is installed on the inner side of the internal gear 4. The sizes of the driving gear 41 and the internal gear 4 are adapted to each other. The internal gear 4 is meshed with the driving gear 41. A driving motor 42 is installed on the upper side of the driving gear 41. The output shaft of the driving motor 42 is fixed to the rotating shaft of the driving gear 41 through a coupling. The driving motor 42 is screwed and fixed on the connecting piece 11. The connecting piece 11 has a fan-shaped structure. The driving motor 42 drives the processing disk 1 to rotate through the driving gear 41 and the internal gear 4. The processing disk 1 rotates by 120 degrees each time.

[0039] Specific embodiment five: This embodiment is a further limitation of specific embodiment one. Five groups of sliders 2 are evenly installed on the bottom of the processing disk 1. The sliders 2 are adapted to the size of the supporting rails 3. The sliders 2 are slidably arranged inside the supporting rails 3. The supporting rails 3 are annular in structure. Five groups of support frames 31 are evenly installed on the bottom of the supporting rails 3.

[0040] Specific embodiment six: This embodiment is a further limitation of specific embodiment one. The prefabricated welding auxiliary mechanism 6 also includes a docking seat 62, a docking groove 63 and a steel bar limiting hole 66. The steel bar limiting hole 66 is evenly arranged in eight groups on the prefabricated welding auxiliary mechanism 6. The interior of the steel bar limiting hole 66 is interspersed with a vertical steel bar 52. The steel bar limiting hole 66 includes a first clamping hole 661, a second clamping hole 662 and a limiting opening 663. Eight groups of first clamping holes 661 are evenly opened on the outer side of the inner plate 61. A limiting opening 663 is opened on the inner wall of the circumference of the first clamping hole 661. The inner wall of the external frame A64 and the external frame B65 is provided with equidistantly distributed second clamping holes 662.

[0041] Specific embodiment seven: This embodiment is a further limitation of specific embodiment six. The internal tray 61 is square, and two sets of docking seats 62 are fixedly provided on both sides of the internal tray 61. Two sets of docking grooves 63 are opened on the inner walls of the external frame A64 and the external frame B65. The docking seats 62 are inserted into the inside of the docking grooves 63. The docking seats 62 and the docking grooves 63 are both arranged in an isosceles trapezoidal shape.

[0042] Specific embodiment eight: This embodiment is specific embodiment six

[0043] Further defined, the external frame A64 and the external frame B65 are positioned and installed on the outside of the internal tray 61 through the docking seat 62 and the docking groove 63, and handles are installed on both sides of the surface of the internal tray 61, and the handles are "U" shaped.

[0044] A method for processing prefabricated parts for building construction, comprising the following steps:

[0045] S1: First, insert multiple groups of vertical steel bars 52 to be welded on the prefabricated base plate 5 into multiple groups of steel bar limiting holes 66 provided on the prefabricated welding auxiliary mechanism 6. The prefabricated base plate 5 is pre-placed on the welding station.

[0046] S2: The external switch of the drive motor 42 is turned on. The drive motor 42 drives the processing disk 1 to rotate through the drive gear 41 and the internal gear 4. When the processing disk 1 rotates, it drives the eight groups of vertical steel bars 52 to be welded to cover the top of the reinforcement seat 51;

[0047] S3: The worker holds a welding gun and welds the bottoms of eight groups of "L"-shaped vertical steel bars 52 to the reinforcement seat 51. Then, the switch of the drive motor 42 is turned on again. The welded prefabricated bottom plate 5 is moved out of the welding station, and the unwelded vertical steel bars 52 are moved to the welding station. A new prefabricated bottom plate 5 is placed at the bottom of the welding station.

[0048] S4: After the prefabricated bottom plate 5 is welded, the inner connecting plate 61, the outer connecting frame A64 and the outer connecting frame B65 outside the eight groups of vertical steel bars 52 are separated to obtain a complete prefabricated building construction component.

[0049] S5: Prefabricated parts for construction need to be polished after welding to ensure the quality, safety and durability of the components; eliminate surface protrusions such as weld bumps, welding slag spatter, and burrs to make the surface of the weld joint smooth. If there are sharp burrs on the weld surface, stress concentration points may form when the component is under stress, causing cracks to expand; ensure that the surface flatness of the prefabricated parts meets the design requirements. The polished surface is easier to adhere to the anti-corrosion coating, thereby improving the protection effect.

Claims

1. A prefabricated component processing device for building construction, comprising a processing plate (1), characterized in that: A connecting piece (11) is fixedly provided on the inner circumferential wall of the processing disk (1), an internal gear (4) is provided at the bottom of the connecting piece (11), the connecting piece (11) is fixedly connected to the processing disk (1), a slider (2) is fixedly provided at the bottom of the processing disk (1), a supporting slide rail (3) is installed on the outer side of the slider (2), an inner seat (12) is fixedly connected to the end of the connecting piece (11), a support piece (53) is installed on the surface of the inner seat (12) and the connecting piece (11), a prefabricated welding auxiliary mechanism (6) is magnetically connected to the support piece (53), and the prefabricated welding auxiliary mechanism (6) comprises an inner disk (61) covering the support piece (53), an external frame A (64) is installed on one side of the inner disk (61), and an external frame B (65) is installed on the other side of the inner disk (61).

2. A prefabricated component processing device for construction according to claim 1, characterized in that: The processing disk (1) is annularly arranged, and the inner wall of the processing disk (1) is fixedly connected to the inner seat (12) through three groups of connecting plates (11). The inner seat (12) and the processing disk (1) are in a concentric circle structure. Three groups of supporting plates (53) are evenly distributed on the processing disk (1). The three groups of supporting plates (53) are all provided with prefabricated welding auxiliary mechanisms (6). The prefabricated welding auxiliary mechanisms (6) are interspersed with multiple groups of vertical steel bars (52).

3. The prefabricated component processing device for construction according to claim 2, characterized in that: A prefabricated bottom plate (5) is provided at the bottom of the vertical steel bar (52), a reinforcing seat (51) is fixedly provided on the surface of the prefabricated bottom plate (5), and the reinforcing seat (51) is arranged in a cross shape. A bushing (521) is fixedly provided on the upper circumferential outer wall of the vertical steel bar (52), and a limiting block (522) is fixedly provided on the circumferential outer wall of the bushing (521).

4. The prefabricated component processing device for construction according to claim 1, characterized in that: A driving gear (41) is installed on the inner side of the internal gear (4). The sizes of the driving gear (41) and the internal gear (4) are adapted to each other. The internal gear (4) is meshed with the driving gear (41). A driving motor (42) is installed on the upper side of the driving gear (41). The output shaft of the driving motor (42) is fixed to the rotating shaft of the driving gear (41) through a coupling. The driving motor (42) is screwed and fixed on the connecting piece (11). The connecting piece (11) is a fan-shaped structure. The driving motor (42) drives the processing disk (1) to rotate through the driving gear (41) and the internal gear (4). The angle of each rotation of the processing disk (1) is 120 degrees.

5. The prefabricated component processing device for construction according to claim 1, characterized in that: Five groups of sliders (2) are evenly installed at the bottom of the processing disk (1). The sliders (2) are adapted to the size of the supporting slide rail (3). The sliders (2) are slidably arranged inside the supporting slide rail (3). The supporting slide rail (3) is an annular structure. Five groups of support frames (31) are evenly installed at the bottom of the supporting slide rail (3).

6. The prefabricated component processing device for construction according to claim 1, characterized in that: The prefabricated welding auxiliary mechanism (6) further comprises a docking seat (62), a docking groove (63) and a steel bar limiting hole (66). Eight groups of steel bar limiting holes (66) are evenly arranged on the prefabricated welding auxiliary mechanism (6). Vertical steel bars (52) are inserted into the steel bar limiting holes (66). The steel bar limiting holes (66) comprise a first clamping hole (661), a second clamping hole (662) and a limiting opening (663). Eight groups of first clamping holes (661) are evenly opened on the outer side of the inner plate (61). The limiting opening (663) is opened on the inner wall of the circumference of the first clamping hole (661). The inner wall of the external frame A (64) and the external frame B (65) are provided with second clamping holes (662) distributed at equal intervals.

7. The prefabricated component processing device for construction according to claim 6, characterized in that: The inner connecting plate (61) is square, and two groups of docking seats (62) are fixedly provided on both sides of the inner connecting plate (61). Two groups of docking grooves (63) are provided on the inner walls of the external connecting frame A (64) and the external connecting frame B (65). The docking seats (62) are inserted into the interior of the docking grooves (63), and the docking seats (62) and the docking grooves (63) are both arranged in an isosceles trapezoidal shape.

8. The prefabricated component processing device for construction according to claim 6, characterized in that: The external frame A (64) and the external frame B (65) are positioned and installed on the outside of the internal plate (61) through the docking seat (62) and the docking groove (63). Handles are installed on both sides of the surface of the internal plate (61), and the handles are "U" shaped.

9. A method for processing prefabricated parts for building construction according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: First, multiple groups of vertical steel bars (52) to be welded on the prefabricated base plate (5) are inserted into multiple groups of steel bar limiting holes (66) provided on the prefabricated welding auxiliary mechanism (6), and the prefabricated base plate (5) is placed on the welding station in advance; S2: Start the external switch of the driving motor (42), and the driving motor (42) drives the processing disk (1) to rotate through the driving gear (41) and the internal gear (4). When the processing disk (1) rotates, it drives the eight groups of vertical steel bars (52) that need to be welded to cover the top of the reinforcement seat (51); S3: The worker holds a welding gun and welds the bottoms of eight groups of "L"-shaped vertical steel bars (52) to the reinforcement seat (51), and then starts the switch of the drive motor (42) again. The welded prefabricated bottom plate (5) is moved out of the welding station, and the unwelded vertical steel bars (52) are moved to the welding station, and a new prefabricated bottom plate (5) is placed at the bottom of the welding station; S4: After the prefabricated base plate (5) is welded, the inner connecting plate (61), the outer connecting frame A (64) and the outer connecting frame B (65) outside the eight groups of vertical steel bars (52) are separated to obtain a complete prefabricated building construction part; S5: Prefabricated parts for construction need to be polished after welding to ensure the quality, safety and durability of the components; eliminate surface protrusions such as weld bumps, welding slag spatter, and burrs to make the surface of the weld joint smooth. If there are sharp burrs on the weld surface, stress concentration points may form when the component is under stress, causing cracks to expand; ensure that the surface flatness of the prefabricated parts meets the design requirements. The polished surface is easier to adhere to the anti-corrosion coating, thereby improving the protection effect.

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