Composite scaffold fastener and additive forming process thereof

Abstract

The invention relates to the technical field of metal additive manufacturing, in particular to a composite scaffold fastener and an additive forming process thereof.The composite scaffold fastener comprises two fastener bases, a combined rivet is rotationally arranged between the two fastener bases, the two sides of each fastener base are movably provided with a fastener cover and a pressing screw rod through pin shafts correspondingly, and the two fastener covers are arranged away from each other; a plurality of alloy deposition strips are stacked and formed on the inner arc surface, close to the buckle seat, of the buckle cover, and a plurality of groups of alloy deposition strips are stacked and formed on the inner arc surface of the buckle cover, so that when the buckle cover is formally used, the safety of building construction can be improved by improving the connection stability, durability and structural strength of the buckle cover; the buckle cover can be stably placed through the placing assembly provided in the additive forming process, then surface treatment and position swing adjustment can be conducted on the buckle cover under the cooperation effect of the pretreatment assembly and the forming auxiliary assembly, the stacking forming effect of the alloy deposition strip is improved, and operation is free of worry and convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal additive manufacturing, in particular to a composite material scaffold fastener and an additive forming process thereof. BACKGROUND

[0002] The scaffold fastener is a key component for connecting steel pipes (vertical rods, horizontal rods, inclined rods, etc.) in a building scaffold system. The structural strength and connection stability of the scaffold fastener determine the overall load-bearing capacity and safety of the scaffold. Metal additive manufacturing mainly uses metal powder, metal wire and other metal materials to melt and solidify the materials layer by layer through energy sources such as laser and electron beam, and finally forms a metal part.

[0003] The existing invention with publication number CN110756800A discloses an additive manufacturing method, which includes: installing a reference block on a base plate; performing additive manufacturing of a part on the top surface of the reference block; by setting the reference block, the forming reference of the part can be retained after the additive manufacturing is completed, thereby ensuring the size and position accuracy of the part during subsequent processing, and further improving the utilization rate of additive powder, the manufacturing efficiency of additive parts and the part size accuracy. The method can realize accurate manufacturing of non-machined surfaces of additive manufacturing parts, thereby realizing parts with mixed machined surfaces and additive forming surfaces. The commonly used metal additive manufacturing equipment on the market is mainly divided into three-axis activity or multi-axis control. Since the control processing precision of the multi-axis control metal additive manufacturing equipment is much higher than that of the three-axis activity equipment, the market share of the three-axis activity metal additive manufacturing equipment is the highest. However, the metal accumulation forming effect of the three-axis activity metal additive manufacturing equipment is poor when processing the reference with a circular arc surface such as the scaffold fastener, which is not convenient to use. SUMMARY

[0004] The purpose of the present application is to provide a composite material scaffold fastener and an additive forming process thereof to solve the problems raised in the background art.

[0005] To achieve the above purpose, the present application provides the following technical solution: a composite material scaffold fastener, comprising two fastener seats, a combined rivet rotatably arranged between the two fastener seats, a fastener cover and a compression screw rotatably arranged on both sides of the fastener seat through a pin shaft, the two fastener covers being arranged away from each other, and the inner circular arc surface of the fastener cover near the fastener seat being accumulated and formed with a plurality of alloy deposition strips.

[0006] An additive forming process for a composite material scaffold fastener, comprising processing a base, having the following steps:

[0007] Step 1: fixing and placing the processing base on the metal additive manufacturing workbench, and placing the fastener cover on the upper side of the processing base through the placing assembly;

[0008] Step two: the inner arc surface of the cover is surface treated by the pre-treatment assembly to assist the later accumulation forming of the alloy deposition strip;

[0009] Step three: the angle of the cover is adjusted by the forming auxiliary assembly to realize the stable accumulation forming of the alloy deposition strip.

[0010] Step four: after the processing of one cover is completed, the continuous processing of the next cover is carried out.

[0011] Preferably, the processing base is provided with a second sliding groove on one side, the placing assembly comprises two forming reference seats and an arc-shaped swing plate, the lower ends of the two forming reference seats are horizontally slidably inserted into the second sliding groove, the second sliding groove is provided with a push control cylinder on each side, and one side of each of the two push control cylinders is in contact with one side surface of each of the two forming reference seats.

[0012] Preferably, the upper end of the forming reference seat is provided with a swing groove, the upper ends of both sides in the swing groove are provided with arc-shaped guide blocks, both sides of the arc-shaped swing plate are provided with U-shaped placing rods, and the two U-shaped placing rods are movably sleeved with the two arc-shaped guide blocks respectively.

[0013] Preferably, the upper ends of both sides of the arc-shaped swing plate are provided with a U-shaped placing rod and an L-shaped placing rod respectively, the hole of the cover mounting pin is sleeved with the L-shaped placing rod, the upper end of the U-shaped placing rod is overlapped with the side of the cover away from the L-shaped placing rod, the side of the cover formed by the L-shaped placing rod is provided with a recess for giving way, the recess is provided with an elastic fastener, one end of the elastic fastener is in abutment with the side surface of the cover, and the virtual axis of the cover is coaxial with the virtual axis of the arc-shaped guide block.

[0014] Preferably, the upper end of one side of the arc-shaped swing plate is provided with a tapered positioning groove, the forming reference seat located on one side of the tapered positioning groove is provided with a positioning spring box, the positioning spring box is provided with a spring groove, a positioning spring is vertically inserted into the spring groove, the lower end of the positioning spring is provided with a tapered positioning block through a constraint plate, the lower end of the tapered positioning block is vertically movably inserted into the positioning spring box and inserted into the tapered positioning groove, and the spring rod is sleeved with the positioning spring on one side in the spring groove.

[0015] Preferably, the processing base is provided with a first sliding groove horizontally at the center of one side of the second sliding groove, the first sliding groove is movably provided with an auxiliary processing movable seat horizontally, the first sliding groove is provided with a proximity control cylinder on each side, the two proximity control cylinders are connected with the two sides of the auxiliary processing movable seat respectively, the forming auxiliary assembly comprises a long shaft gear, the upper end of the auxiliary processing movable seat is provided with a rotation control box, and the long shaft gear is horizontally rotatably arranged on one side of the rotation control box.

[0016] Preferably, a gear through hole is arranged in the center of the forming reference seat penetrating the swing groove, one side of the long shaft gear penetrates the gear through hole and is inserted into the swing groove, a plurality of driving teeth are arranged on the lower end of the arc swing plate in the swing groove, and the upper end of the long shaft gear inserted into the swing groove is connected with the driving teeth of the arc swing plate in meshing.

[0017] Preferably, two swing positioning rods are horizontally arranged on one side of the auxiliary processing movable seat close to the second sliding groove, swing positioning grooves are horizontally arranged on both sides of the forming reference seat inserted into the second sliding groove, the two swing positioning rods are respectively movably penetrated into the first sliding groove and inserted into the two swing positioning grooves, the swing positioning grooves close to the auxiliary processing movable seat are all arranged in an inclined manner, and the length of the swing positioning rod is greater than the length of the long shaft gear.

[0018] Preferably, a pretreatment support is horizontally arranged on the upper end of the auxiliary processing movable seat through the support plate, a wheel groove is arranged on one side of the pretreatment support, a driving wheel is rotatably arranged in the wheel groove, a polishing shaft is horizontally arranged on one side of the driving wheel, the polishing shaft penetrates one side of the pretreatment support close to the forming reference seat and is provided with a polishing wheel, a high-pressure gas connector is arranged on one side of the upper end of the wheel groove, a shunt annular groove is arranged on one side of the pretreatment support close to the polishing wheel, a rotating through groove is arranged in the wheel groove and is communicated with the shunt annular groove, and a plurality of cleaning blow holes are arranged on one side of the shunt annular groove close to the polishing wheel.

[0019] Compared with the prior art, the application has the following beneficial effects:

[0020] The alloy deposition strips are stacked on the inner arc surface of the buckle cover, the connection stability, durability and structural strength of the buckle cover are improved when the buckle cover is used, the safety of the construction is improved, the buckle cover is stably placed by the placing assembly in the additive forming process when the alloy deposition strips are worked, then the surface treatment and position swing adjustment of the buckle cover are performed under the cooperation of the pretreatment assembly and the forming auxiliary assembly, the stacking forming effect of the alloy deposition strips is improved, and the operation is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic view of the scaffold fastener structure of the application;

[0022] Figure 2 It is a schematic view of the alloy deposition strip forming processing structure of the application;

[0023] Figure 3 It is a schematic view of the A part of the application; Figure 2

[0024] Figure 4 It is a schematic view of the forming reference seat installation structure of the application;

[0025] Figure 5 It is a schematic view of the forming reference seat installation structure of the application;​Figure 4 B part schematic diagram of the application;

[0026] Figure 6 Split schematic diagram of the auxiliary processing movable seat and the processing base of the application;

[0027] Figure 7 Split schematic diagram of the auxiliary processing movable seat and the processing base of the application; Figure 6 C part schematic diagram of the application;

[0028] Figure 8 Split schematic diagram of the auxiliary processing movable seat and the processing base of the application;

[0029] Figure 9 Split schematic diagram of the auxiliary processing movable seat and the processing base of the application;

[0030] Figure 10 Split schematic diagram of the auxiliary processing movable seat and the processing base of the application; Figure 9 D part schematic diagram of the application;

[0031] Figure 11 Split schematic diagram of the auxiliary processing movable seat and the processing base of the application;

[0032] Figure 12 Split schematic diagram of the auxiliary processing movable seat and the processing base of the application; Figure 11 E part schematic diagram of the application;

[0033] Figure 13 Split schematic diagram of the auxiliary processing movable seat and the processing base of the application;

[0034] Figure 14 Split schematic diagram of the auxiliary processing movable seat and the processing base of the application; Figure 13 F part schematic diagram of the application;

[0035] Figure 15 Split schematic diagram of the auxiliary processing movable seat and the processing base of the application;

[0036] In the figure: buckle seat 1, buckle cover 2, compression screw 3, combined rivet 4, alloy deposition strip 5, processing base 6, first sliding groove 7, second sliding groove 8, forming reference seat 9, push control cylinder 10, auxiliary processing movable seat 11, long shaft gear 12, gear through hole 13, arc guide block 14, arc swing plate 15, U-shaped placement rod 16, L-shaped placement rod 17, accommodation recess 18, elastic buckle 19, conical positioning groove 20, positioning spring box 21, conical positioning block 22, positioning spring 23, driving tooth 24, proximity control cylinder 25, righting positioning groove 26, righting positioning rod 27, pretreatment support 28, wheel groove 29, driving wheel 30, polishing shaft 31, polishing wheel 32, high-pressure gas connector 33, shunt annular groove 34, rotation through groove 35, cleaning blowing hole 36. DETAILED DESCRIPTION

[0037] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present application.

[0038] Please refer to the accompanying Figures 1-15 The present application provides the following technical solutions.

[0039] A composite scaffold fastener, comprising two fastener seats 1, a combined rivet 4 rotatably arranged between the two fastener seats 1, a fastener cover 2 and a compression screw 3 movably arranged on both sides of the fastener seat 1 through a pin shaft, the two fastener covers 2 are arranged away from each other, and the inner arc surface of the fastener cover 2 close to the fastener seat 1 is formed with a plurality of alloy deposition strips 5, the arrangement of the alloy deposition strips 5 can improve the wear resistance of the fastener cover 2 and the structural strength during later use, and after engagement connection with the scaffold, the connection stability can be improved.

[0040] An additive forming process for a composite scaffold fastener, comprising processing a base 6, having the following steps:

[0041] Step one: fix the processing base 6 on the metal additive processing workbench, and place the fastener cover 2 on the upper side of the processing base 6 through the placing assembly;

[0042] Step two: surface treat the inner arc surface of the fastener cover 2 through the pretreatment assembly to assist the accumulation forming of the alloy deposition strip 5 later;

[0043] Step three: adjust the angle of the fastener cover 2 through the forming auxiliary assembly to realize the stable accumulation forming of the alloy deposition strip 5;

[0044] Step four: after the processing of one fastener cover 2 is completed, continuously process the next fastener cover 2.

[0045] One side of the processing base 6 is provided with a second sliding groove 8, the placing assembly comprises two forming reference seats 9 and an arc swing plate 15, the lower ends of the two forming reference seats 9 are horizontally slidably inserted into the second sliding groove 8, the two sides of the second sliding groove 8 are respectively provided with a push control cylinder 10, and one side of the two push control cylinders 10 respectively contacts one side surface of the two forming reference seats 9, the two push control cylinders 10 can horizontally move the two forming reference seats 9 in the second sliding groove 8, but are not connected with the forming reference seats 9, and when continuously processing, one is for processing and the other is for waiting for processing, so that the processing efficiency is improved.

[0046] The upper end of the forming reference seat 9 is provided with a swing groove, and the upper ends of both sides in the swing groove are provided with arc-shaped guide blocks 14. Both sides of the arc-shaped swing plate 15 are provided with U-shaped placement rods 16, and the two U-shaped placement rods 16 are movably sleeved with the two arc-shaped guide blocks 14, respectively. The upper ends of both sides of the arc-shaped swing plate 15 are provided with the U-shaped placement rod 16 and the L-shaped placement rod 17, respectively. The hole sleeve of the L-shaped placement rod 17 is arranged on the installation pin rod of the buckle cover 2, and the upper end of the U-shaped placement rod 16 is overlapped on the side of the buckle cover 2 away from the L-shaped placement rod 17. The side of the buckle cover 2, which is formed by the L-shaped placement rod 17, is provided with a recess 18, and the recess 18 is provided with an elastic buckle 19. One end of the elastic buckle 19 is in abutment with the side of the buckle cover 2, and the virtual axis of the buckle cover 2 is coaxial with the virtual axis of the arc-shaped guide block 14. When the arc-shaped swing plate 15 is flipped and slid along the arc-shaped guide block 14, the inner arc surface of the additive deposition strip 5 needs to be accumulated needs to be swung along with the arc-shaped swing plate 15, so that the additive manufacturing gun head vertically downward is always perpendicular to the inner arc surface of the buckle cover 2.

[0047] The connection between the L-shaped placement rod 17 and the buckle cover 2 is a frictional contact. After the buckle cover 2 is sleeved with the L-shaped placement rod 17, it can only rotate under external interference. The height, shape and material of the U-shaped placement rod 16 and the L-shaped placement rod 17 need to be customized according to requirements. When the buckle cover 2 is made of an alloy material with a high iron content, the U-shaped placement rod 16 and the L-shaped placement rod 17 can be made of a magnetic metal. When the virtual axis of the inner arc of the buckle cover 2 does not correspond to the arc-shaped guide block 14, the installation position of the U-shaped placement rod 16 and the L-shaped placement rod 17 can be customized to make the virtual axis of the inner arc of the buckle cover 2 correspond to the virtual axis of the arc-shaped guide block 14.

[0048] A tapered positioning groove 20 is formed in the upper end of one side of the arc-shaped swing plate 15. The forming reference seat 9 located on one side of the tapered positioning groove 20 is provided with a positioning spring box 21. The positioning spring box 21 is provided with a spring groove. The positioning spring 23 is vertically inserted into the spring groove. The lower end of the positioning spring 23 is provided with a tapered positioning block 22 through a constraint plate. The lower end of the tapered positioning block 22 vertically penetrates the positioning spring box 21 and is inserted into the tapered positioning groove 20. The spring rod is sleeved with the positioning spring 23 on one side in the spring groove. The arc-shaped swing plate 15 can be quickly separated or installed by the arc-shaped guide block 14. After the arc-shaped swing plate 15 and the arc-shaped guide block 14 are installed, when the tapered positioning block 22 is inserted into the tapered positioning groove 20, the buckle cover 2 is in a horizontal posture.

[0049] The processing base 6 is located at the center of one side of the second sliding groove 8 and is horizontally provided with the first sliding groove 7, the first sliding groove 7 is horizontally movably provided with the auxiliary processing movable seat 11, and the first sliding groove 7 is horizontally provided with the proximity control cylinder 25 on both sides. The two proximity control cylinders 25 are respectively connected to the two sides of the auxiliary processing movable seat 11. The forming auxiliary assembly comprises a long shaft gear 12, the upper end of the auxiliary processing movable seat 11 is provided with a rotary control box, the long shaft gear 12 is horizontally rotatably arranged on one side of the rotary control box, the center of the forming reference seat 9 is provided with a gear through hole 13 penetrating the swing groove, one side of the long shaft gear 12 penetrates the gear through hole 13 and is inserted into the swing groove, the lower end of the arc swing plate 15 in the swing groove is provided with a plurality of driving teeth 24, the upper end of the long shaft gear 12 inserted into the swing groove is connected to the driving teeth 24 of the arc swing plate 15 in meshing connection, and the rotary control box is provided with a servo stepping motor. When it is necessary to overturn and swing the arc swing plate 15, the stepping motor drives the long shaft gear 12 to rotate. At this time, the long shaft gear 12 drives the driving teeth 24 below the arc swing plate 15 to rotate, so as to realize the overturning of the arc swing plate 15 and the cover 2. In the case that the additive manufacturing gun head cannot be inclined, the inner arc surface of the cover 2 can be stacked and formed into alloy deposition strips 5 one by one.

[0050] The auxiliary processing movable seat 11 is horizontally provided with two swing positioning rods 27 close to one side of the second sliding groove 8, the two sides of the forming reference seat 9 inserted into the second sliding groove 8 are horizontally provided with swing positioning grooves 26 penetratingly arranged, the two swing positioning rods 27 are movably penetrated through the first sliding groove 7 and inserted into the two swing positioning grooves 26, and the swing positioning grooves 26 close to the auxiliary processing movable seat 11 are all arranged in an inclined manner. The length of the swing positioning rod 27 is greater than the length of the long shaft gear 12. Before the long shaft gear 12 is inserted into the forming reference seat 9 and connected to the arc swing plate 15, the swing positioning rod 27 is first inserted into the swing positioning groove 26 of the forming reference seat 9 to swing the forming reference seat 9. At this time, the long shaft gear 12 is inserted into the forming reference seat 9 without collision.

[0051] The upper end of the auxiliary processing movable seat 11 is horizontally provided with a pretreatment support 28 through a support plate, the support plate can adjust the horizontal height of the pretreatment support 28 by customizing the height, one side of the pretreatment support 28 is provided with a wheel groove 29, the wheel groove 29 is rotatably provided with a driving wheel 30, one side of the driving wheel 30 is horizontally provided with a polishing shaft 31, the polishing shaft 31 penetrates the pretreatment support 28 and is provided with a polishing wheel 32 near one side of the forming reference seat 9, one side of the wheel groove 29 is provided with a high-pressure gas connector 33 at the upper end, the pretreatment support 28 is provided with a shunt annular groove 34 near the polishing wheel 32, the wheel groove 29 is provided with a rotating through groove 35 at the lower end and connected to the shunt annular groove 34, the shunt annular groove 34 is provided with a plurality of cleaning blowholes 36 near the polishing wheel 32, after the long shaft gear 12 is connected with the arc-shaped swing plate 15, when the auxiliary processing movable seat 11 continues to advance through the proximity control cylinder 25, the polishing wheel 32 will contact the inner arc surface of the cover 2, at this time, the high-pressure gas connector 33 is connected to the high-pressure gas flow, the high-pressure gas flow drives the driving wheel 30 to rotate at high speed, and then the driving wheel 30 controls the polishing shaft 31 and the polishing wheel 32 to rotate at high speed, the polishing wheel 32 performs oxide product processing and surface roughening processing on the inner arc surface of the cover 2, improves the connection strength of the alloy deposition strip 5 accumulated in the later forming, and when the high-pressure gas flow is sent into the high-pressure gas connector 33, the high-pressure gas flow enters the shunt annular groove 34 from the rotating through groove 35, and then is blown at high speed from the shunt annular groove 34 to the polishing position of the polishing wheel 32 and the cover 2, and the metal powder generated by polishing is cleaned and blown.

[0052] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application being defined by the appended claims and their equivalents.

Claims

1. A composite material scaffolding coupler, characterized in that, It includes two buckle seats (1), and a combination rivet (4) is rotatably provided between the two buckle seats (1). Each side of the buckle seat (1) is provided with a buckle cover (2) and a clamping screw (3) respectively through a pin. The two buckle covers (2) are set far apart, and several alloy deposit strips (5) are stacked on the inner arc surface of the buckle cover (2) close to the buckle seat (1).

2. An additive manufacturing process for the composite material scaffolding coupler as described in claim 1, characterized in that, Including a processing base (6), comprising the following steps: Step 1: Fix the processing base (6) on the metal additive processing worktable, and place the cover (2) on top of the processing base (6) through the placement component; Step 2: The inner arc surface of the cover (2) is surface treated by the pretreatment component to assist the subsequent deposition of alloy strips (5) into shape; Step 3: Adjust the angle of the cap (2) using the forming auxiliary components to achieve stable deposition of the alloy deposition strip (5); Step 4: After one cover (2) is completed, the next cover (2) is processed continuously.

3. The additive manufacturing process for composite scaffolding fasteners according to claim 2, characterized in that: The processing base (6) has a second sliding groove (8) on one side. The mounting components include two forming reference seats (9) and an arc-shaped swing plate (15). The lower ends of the two forming reference seats (9) are horizontally slidably inserted into the second sliding groove (8). Push control cylinders (10) are horizontally arranged on both sides of the second sliding groove (8), and one side of the two push control cylinders (10) is in contact with one side of the two forming reference seats (9).

4. The additive manufacturing process for composite scaffolding couplers according to claim 3, characterized in that: The upper end of the forming reference base (9) is provided with a swing groove, and the upper ends of both sides of the swing groove are provided with arc-shaped guide blocks (14). Both sides of the arc-shaped swing plate (15) are provided with U-shaped placement rods (16), and the two U-shaped placement rods (16) are respectively movably sleeved on the two arc-shaped guide blocks (14).

5. The additive manufacturing process for composite material scaffolding couplers according to claim 4, characterized in that: The upper ends of the arc-shaped swing plate (15) are respectively provided with U-shaped placement rods (16) and L-shaped placement rods (17). The holes of the mounting pins of the cover (2) are fitted with L-shaped placement rods (17). The side of the cover (2) away from the L-shaped placement rods (17) overlaps with the upper end of the U-shaped placement rods (16). The side of the L-shaped placement rods (17) that forms the cover (2) is provided with a clearance groove (18). An elastic fastener (19) is provided in the clearance groove (18). One end of the elastic fastener (19) abuts against the side of the cover (2), and the virtual axis of the cover (2) is coaxial with the virtual axis of the arc-shaped guide block (14).

6. The additive manufacturing process for composite material scaffolding couplers according to claim 5, characterized in that: A conical positioning groove (20) is provided on the upper end of one side of the arc-shaped swing plate (15). A positioning spring box (21) is provided on one side of the forming reference seat (9) located in the conical positioning groove (20). A spring groove is provided in the positioning spring box (21). A positioning spring (23) is vertically inserted in the spring groove. A conical positioning block (22) is provided at the lower end of the positioning spring (23) through a constraint plate. The lower end of the conical positioning block (22) vertically moves through the positioning spring box (21) and is inserted into the conical positioning groove (20). The spring rod is located on one side of the spring groove and is fitted with the positioning spring (23).

7. The additive manufacturing process for composite material scaffolding couplers according to claim 6, characterized in that: The processing base (6) is located on one side of the second sliding groove (8) and has a first sliding groove (7) horizontally opened at the center. An auxiliary processing seat (11) is horizontally movably arranged in the first sliding groove (7). Approach control cylinders (25) are horizontally arranged on both sides of the first sliding groove (7). The two approach control cylinders (25) are respectively connected to the two sides of the auxiliary processing seat (11). The forming auxiliary component includes a long shaft gear (12). A rotation control box is provided at the upper end of the auxiliary processing seat (11). The long shaft gear (12) is horizontally rotatably arranged on one side of the rotation control box.

8. The additive manufacturing process for composite scaffolding couplers according to claim 7, characterized in that: The center of the molded reference base (9) has a through-hole (13) for a gear through-hole. One side of the long shaft gear (12) passes through the gear through-hole (13) and is inserted into the swing groove. The lower end of the arc swing plate (15) located in the swing groove is provided with several actuating teeth (24). The upper end of the long shaft gear (12) inserted into the swing groove meshes with the actuating teeth (24) of the arc swing plate (15).

9. The additive manufacturing process for composite material scaffolding couplers according to claim 8, characterized in that: The auxiliary processing active seat (11) has two horizontally positioned positioning rods (27) on one side near the second sliding groove (8). The forming reference seat (9) is inserted into the second sliding groove (8) and horizontally opened on both sides to form positioning grooves (26). The two positioning positioning rods (27) respectively move through the first sliding groove (7) and are inserted into the two positioning grooves (26). The side of the positioning grooves (26) near the auxiliary processing active seat (11) is inclined, and the length of the positioning rods (27) is greater than the length of the long shaft gear (12).

10. The additive manufacturing process for composite scaffolding couplers according to claim 9, characterized in that: The upper end of the auxiliary processing active seat (11) is provided with a pre-treatment support (28) horizontally via a support plate. A wheel groove (29) is provided on one side of the pre-treatment support (28). A turning wheel (30) is rotatably provided in the wheel groove (29). A grinding shaft (31) is provided horizontally at the center of one side of the turning wheel (30). The grinding shaft (31) passes through the pre-treatment support (28) on the side near the forming reference seat (9) and is provided with a grinding wheel (32). A high-pressure air connector (33) is provided at the upper end of one side of the wheel groove (29). A diversion annular groove (34) is provided on the side of the pre-treatment support (28) near the grinding wheel (32). A through groove (35) is provided at the lower end of the wheel groove (29) in connection with the diversion annular groove (34). Several cleaning holes (36) are provided on the side of the diversion annular groove (34) near the grinding wheel (32).

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