An automatic assembly device for corner fittings and aluminum alloy pipes

Abstract

The application discloses an automatic assembling equipment for corner code and aluminum alloy pipes, and relates to the technical field of mechanical assembly. The automatic assembling equipment comprises a supporting assembly, a loading assembly and an assembling assembly. The supporting assembly is used for supporting the loading assembly and the assembling assembly. The supporting assembly comprises a supporting plate, a supporting pipe, a supporting pad and a supporting strip. The loading assembly is arranged above the supporting assembly and is vertically and evenly distributed. The four loading assemblies are used for loading four stacks of aluminum alloy pipes. The loading assembly comprises an outer baffle, a side baffle, a lower supporting strip, an upper supporting plate and a plug-in plate. The assembling assembly is arranged outside the four loading assemblies and is horizontally and evenly distributed. The assembling assembly is used for assembling four aluminum alloy pipes in the same layer. The assembling assembly comprises a straight guide rail, a hydraulic cylinder one, a hydraulic cylinder two, an electric screwdriver, a mounting shaft one, a mounting shaft two and a chain nail belt. The four aluminum alloy pipes can be assembled by using plastic corner codes, and cross screws are additionally arranged at the assembling positions.

Description

Technical Field

[0001] This invention relates to the technical field of mechanical assembly, and more specifically to an automatic assembly device for corner brackets and aluminum alloy tubing. Background Technology

[0002] As the technology for converting solar energy into electrical energy for storage matures, solar panels are becoming increasingly widely used. Aluminum alloy tubing and corner brackets are crucial components of solar panels, but currently, their assembly is primarily done manually. Due to the sharp edges of the aluminum alloy tubing, manual assembly poses safety risks, and subsequent manual tightening of screws at the assembly points is necessary for reinforcement. Furthermore, labor costs are high, error rates are high, and assembly efficiency is low. Therefore, automating the assembly of aluminum alloy tubing and corner brackets is of paramount importance. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic assembly device for corner brackets and aluminum alloy tubing to overcome the aforementioned defects caused by the prior art.

[0004] An automated assembly device for corner brackets and aluminum alloy tubing includes a support assembly, a loading assembly, and an assembly assembly, wherein:

[0005] The support components are used to support the loading components and assembly components;

[0006] The loading assembly is provided in four parts and is evenly and vertically distributed above the support assembly. The four loading assemblies are used to load four stacks of aluminum alloy pipes.

[0007] The assembly components are provided in four pairs and are horizontally distributed on the outside of the four loading components. The assembly components are used to assemble four aluminum alloy tubes on the same layer.

[0008] Preferably, the support assembly includes a support plate, support tubes, support pads, and support strips. The support plate is horizontally arranged. There are four support tubes that are evenly and vertically connected to the lower side of the support plate. There are four support pads that are horizontally connected to the lower ends of the four support tubes. There are four support strips that are evenly and horizontally connected to the upper side of the support plate. A row of rectangular insertion ports are evenly distributed on the support strips.

[0009] Preferably, the loading assembly includes an outer baffle, side baffles, a lower support strip, an upper support plate, and an insert plate. The outer baffle is vertically arranged. A pair of side support strips are symmetrically connected to the left and right sides of the outer baffle, and the side support strips have a Z-shaped cross-section. The lower support strip is horizontally positioned below the outer baffle, and a pair of U-shaped clearance holes are symmetrically provided at both ends of the lower support strip. The lower support strip has a "└" shaped cross-section. Several "┘" shaped inner baffles are evenly connected to the bottom of the lower support strip. The inner baffles are made of elastic plastic material. A pair of parallelogram-shaped side baffles are symmetrically connected at both ends. The upper support plate is horizontally positioned between the outer baffle and the lower support strip. The two ends of the upper support plate are welded to the tops of the two side baffles. A row of rectangular clearance slots is evenly distributed on the upper support plate. Several insert plates are provided and are evenly and vertically connected to the lower part of the outer baffle. Adjacent insert plates are slidably positioned inside the clearance slots. The lower part of the insert plate extends downward and is horizontally slidably connected to several connecting posts. The inner ends of the connecting posts are all connected to the outer side of the lower support strip. Each connecting post is fitted with a compression spring.

[0010] Preferably, the assembly assembly includes a straight guide rail, a first hydraulic cylinder, a second hydraulic cylinder, an electric screwdriver, a first mounting shaft, a second mounting shaft, and a chain stud belt. The straight guide rail is horizontally inwardly positioned and connected to the upper side of the support plate. A sliding block is slidably connected to the straight guide rail, and a sliding plate is horizontally mounted on the upper side of the sliding block. The first hydraulic cylinder is horizontally inwardly positioned and mounted above the support plate via a "┘"-shaped fixing plate. A pushing block is connected to the end of the piston rod of the first hydraulic cylinder, and the pushing block is centrally connected to the upper side of the sliding plate. The second hydraulic cylinder is horizontally inwardly positioned and mounted on the upper side of the sliding plate via a "└"-shaped fixing plate. A pushing block is connected to the end of the piston rod of the second hydraulic cylinder. The electric screwdriver is horizontally inwardly positioned and mounted on the upper side of the sliding plate via a pair of "∩"-shaped fixing clamps. A pair of mounting plates are spaced apart at the inner end of the electric screwdriver. The mounting plate has a cross-section in the shape of "[". Mounting shaft one and mounting shaft two are rotatably connected to the upper and lower sides of the two mounting plates, respectively. Mounting shaft one has a pair of friction wheels fixed between the two mounting plates. Mounting shaft two has a friction roller connected between the two mounting plates through a pair of one-way bearings. The outer circumferential surface of the friction roller is in contact with the upper surface of the support plate. The outer end of mounting shaft one is keyed to a transmission wheel one. The outer end of mounting shaft two is keyed to a transmission wheel two. The transmission wheel one and transmission wheel two are connected by a transmission belt. An extended connecting strip is welded to the upper side of the two mounting plates. The extended end of the connecting strip is connected to the piston rod end of hydraulic cylinder two. The chain nail belt is vertically inserted between the two mounting plates. The outer circumferential surface of the friction wheel is in contact with the outer surface of the chain nail belt. Horizontally inward-facing cross screws are evenly inserted on the chain nail belt.

[0011] Preferably, the support plate has a rectangular frame opening in the middle, and a pair of rectangular nail holes are provided at the corners of the frame opening.

[0012] Preferably, the upper part of the outer baffle is provided with a rectangular lifting opening in the center.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] 1. Pre-stack materials manually. Workers stack a pile of aluminum alloy tubes on each of the four support components. The bottom aluminum alloy tube slides onto the lower support strip and is limited by the inner and side baffles. The remaining aluminum alloy tubes are limited by the outer and side baffles. Then, the four sets of insert plates on the four support components are inserted into the insert slots on the four support strips. It is ensured that the ends of the left and right piles of aluminum alloy tubes are pre-installed with plastic corner brackets, while the ends of the front and back piles of aluminum alloy tubes are not pre-installed with plastic corner brackets.

[0015] 2. Assemble the aluminum alloy tubing using angle brackets. First, extend the piston rods of the hydraulic cylinders on both the front and rear sides and push the corresponding push blocks, thereby moving the lower support bars and aluminum alloy tubing on both the front and rear sides towards each other to the designated positions. Then, extend the piston rods of the hydraulic cylinders on both the left and right sides and push the corresponding push blocks, thereby moving the lower support bars and aluminum alloy tubing on both the left and right sides towards each other to the designated positions, until the plastic angle brackets on the aluminum alloy tubing on both the left and right sides are inserted into the ports of the aluminum alloy tubing on both the front and rear sides.

[0016] 3. Connect the aluminum alloy tubing with screws. First, extend the piston rods of the two hydraulic cylinders on both the front and rear sides and push the corresponding push blocks, thereby moving the electric screwdrivers on both sides towards each other to the designated position. At the same time, extend the piston rods of the two hydraulic cylinders on both the front and rear sides and push the corresponding push blocks, thereby moving the electric screwdrivers on both sides towards each other to the designated position. During the above movement, the piston rods of the two hydraulic cylinders on both the front and rear sides and the two hydraulic cylinders on both the left and right sides retract synchronously. When the tip of the electric screwdriver contacts the top cross screw on the chain stud, start the electric screwdriver and screw the cross screw into the assembly point of the aluminum alloy tubing to assemble the aluminum alloy frame.

[0017] 4. Automatic screw replenishment during idle stroke. The piston rods of the two hydraulic cylinders on both sides retract and pull the corresponding push blocks, thereby pulling the electric screwdrivers on both sides to move in opposite directions to their initial positions. Simultaneously, the piston rods of the two hydraulic cylinders on both sides retract and pull the corresponding push blocks, thereby pulling the electric screwdrivers on both sides to move in opposite directions to their initial positions. During this movement, the locking action of the one-way bearing allows the torque of the friction roller to be transmitted to the mounting shaft two as it passes over the upper surface of the support plate. The mounting shaft two then transmits this torque to the mounting shaft one via a transmission belt, causing the friction wheel to rotate and the chain belt to transport a fixed length upwards, moving the next Phillips head screw to a position coaxial with the electric screwdriver. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the overall front view of the present invention.

[0020] Figure 3 This is a schematic diagram of the support component in this invention.

[0021] Figure 4 and Figure 5 This is a schematic diagram of the loading component in this invention.

[0022] Figure 6 and Figure 7 This is a schematic diagram of the assembly component in this invention.

[0023] Figure 8 A schematic diagram of an aluminum alloy tube pre-installed with plastic corner brackets.

[0024] Figure 9 This is a structural diagram of an aluminum alloy tube without plastic corner brackets.

[0025] in:

[0026] 10-Support assembly; 101-Support plate; 101a-Frame drop opening; 101b-Pin nail hole; 102-Support tube; 103-Support pad; 104-Support strip; 104a-Insertion port;

[0027] 20-Loading assembly; 201-Outer baffle; 201a-Lifting and lowering port; 202-Side baffle; 203-Lower support strip; 203a-Allowing hole; 204-Inner baffle; 205-Side baffle; 206-Upper support plate; 206a-Allowing hole; 207-Installation plate; 208-Connecting post; 209-Compression spring;

[0028] 30-Assembly component; 301-Straight guide rail; 302-Sliding block; 303-Sliding plate; 304-Hydraulic cylinder one; 305-Fixing plate one; 306-Pushing block one; 307-Hydraulic cylinder two; 308-Fixing plate two; 309-Pushing block two; 310-Electric screwdriver; 311-Fixing clamp; 312-Mounting piece; 313-Mounting shaft one; 314-Friction wheel; 315-Mounting shaft two; 316-Friction roller; 317-One-way bearing; 318-Transmission wheel one; 319-Transmission wheel two; 320-Transmission belt; 321-Connecting strip; 322-Chain stud belt; 323-Phillips head screw;

[0029] 40-Aluminum alloy tubing;

[0030] 50-Plastic corner brackets. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0032] like Figures 1 to 9 As shown, an automated assembly device for corner brackets and aluminum alloy tubing includes a support assembly 10, a loading assembly 20, and an assembly assembly 30, wherein:

[0033] The support component 10 is used to support the loading component 20 and the assembly component 30;

[0034] The loading components 20 are provided in four and are evenly and vertically distributed above the support components 10. The four loading components 20 are used to load four stacks of aluminum alloy tubes 40.

[0035] The assembly component 30 has four pairs and is horizontally distributed on the outside of the four loading components 20. The assembly component 30 is used to assemble four aluminum alloy tubes 40 on the same layer.

[0036] In this embodiment, the support assembly 10 includes a support plate 101, a support tube 102, a support pad 103, and a support bar 104. The support plate 101 is horizontally arranged. The support tube 102 has four sections that are evenly and vertically connected to the lower side of the support plate 101. The support pad 103 has four sections that are horizontally connected to the lower ends of the four support tubes 102. The support bar 104 has four sections that are evenly and horizontally connected to the upper side of the support plate 101. A row of rectangular insertion ports 104a are evenly distributed on the support bar 104.

[0037] In this embodiment, the loading assembly 20 includes an outer baffle 201, side baffles 202, a lower support strip 203, an upper support plate 206, and an insert plate 207. The outer baffle 201 is vertically arranged. The side support strips 202 are provided with a pair and symmetrically connected to the left and right sides of the outer baffle 201. The cross-section of the side support strips 202 is Z-shaped. The lower support strip 203 is horizontally arranged below the outer baffle 201. The two ends of the lower support strip 203 are symmetrically provided with a pair of U-shaped clearance holes 203a. The cross-section of the lower support strip 203 is "└" shaped. The bottom of the lower support strip 203 is uniformly connected with a plurality of "┘" shaped inner baffles 204. The inner baffles 204 are made of elastic plastic material. A pair of parallelogram-shaped side baffles 205 are symmetrically connected to both ends of the upper support plate 201. The upper support plate 206 is horizontally positioned between the outer baffle 201 and the lower support strip 203. The two ends of the upper support plate 206 are welded to the top of the two side baffles 205. A row of rectangular clearance openings 206a are evenly distributed on the upper support plate 206. Several insert plates 207 are provided and are evenly and vertically connected to the lower part of the outer baffle 201. Adjacent insert plates 207 are slidably positioned inside the clearance openings 206a. The lower part of the insert plate 207 is suspended downward and horizontally slidably connected to several connecting posts 208. The inner ends of the connecting posts 208 are all connected to the outer side of the lower support strip 203. A compression spring 209 is fitted on each connecting post 208.

[0038] In this embodiment, the assembly component 30 includes a straight guide rail 301, a first hydraulic cylinder 304, a second hydraulic cylinder 307, an electric screwdriver 310, a first mounting shaft 313, a second mounting shaft 315, and a chain stud belt 322. The straight guide rail 301 is horizontally inwardly arranged and connected to the upper side of the support plate 101. A sliding block 302 is slidably connected to the straight guide rail 301. A sliding plate 303 is horizontally mounted on the upper side of the sliding block 302. The first hydraulic cylinder 304 is horizontally inwardly arranged and mounted above the support plate 101 through a "┘"-shaped fixing plate 305. Hydraulic cylinder 304 has a piston rod end connected to a push block 306, which is centrally connected to the upper side of sliding plate 303. Hydraulic cylinder 307 is horizontally inwardly mounted on the upper side of sliding plate 303 via a "└"-shaped fixing plate 308. The piston rod end of hydraulic cylinder 307 is connected to a push block 309. Electric screwdriver 310 is horizontally inwardly mounted on the upper side of sliding plate 303 via a pair of "∩"-shaped fixing clamps 311. A pair of mounting plates are provided at the inner end of electric screwdriver 310 with a gap. 312, the cross-section of the mounting plate 312 is a "[" shaped structure. The first mounting shaft 313 and the second mounting shaft 315 are rotatably connected to the upper and lower sides of the two mounting plates 312, respectively. The first mounting shaft 313 has a pair of friction wheels 314 fixed between the two mounting plates 312. The second mounting shaft 315 has a friction roller 316 connected between the two mounting plates 312 through a pair of one-way bearings. The outer circumferential surface of the friction roller 316 is in contact with the upper surface of the support plate 101. The outer end of the first mounting shaft 313 is keyed to a transmission wheel 318. The outer end of the mounting shaft 315 is keyed to a transmission wheel 319. The transmission wheel 318 and the transmission wheel 319 are connected by a transmission belt 320. An overhanging connecting strip 321 is welded to the upper side of the two mounting pieces 312. The overhanging end of the connecting strip 321 is connected to the end of the piston rod of the hydraulic cylinder 307. The chain nail belt 322 is vertically inserted between the two mounting pieces 312. The outer circumferential surface of the friction wheel 314 is in contact with the outer surface of the chain nail belt 322. Horizontally facing inward cross screws 323 are evenly inserted on the chain nail belt 322.

[0039] In this embodiment, the support plate 101 has a rectangular frame drop opening 101a in the middle, and a pair of rectangular nail holes 101b at the corners of the frame drop opening 101a. By opening the frame drop opening 101a, the assembled aluminum alloy frame can be removed through the frame drop opening 101a; by opening the nail holes 101b, the vertically inserted chain nail band 322 can freely pass through the nail holes 101b under the drive of the hydraulic cylinder 307.

[0040] In this embodiment, a rectangular lifting opening 201a is provided in the center of the upper part of the outer baffle 201. The lifting opening 201a facilitates workers to lift and place the loading assembly 20.

[0041] In practical applications, this automated assembly equipment for corner brackets and aluminum alloy tubing includes the following processes:

[0042] Step 1: Workers stack aluminum alloy tubes 40 on each of the four support components 10. The bottom aluminum alloy tube 40 slides onto the lower support strip 203 and is limited by the inner baffle 204 and the side baffle 205. The remaining aluminum alloy tubes 40 are limited by the outer baffle 201 and the side baffle 202. Then, the four sets of insert plates 207 on the four support components 10 are inserted into the insert ports 104a on the four support strips 104. Ensure that the two ends of the left and right stacks of aluminum alloy tubes 40 are pre-installed with plastic corner brackets 50, while the two ends of the front and back stacks of aluminum alloy tubes 40 are not pre-installed with plastic corner brackets 50.

[0043] Step 2: First, the piston rods of the hydraulic cylinders 304 on both the front and rear sides extend and push the corresponding push blocks 306, thereby driving the lower support bars 203 and aluminum alloy tubes 40 on both the front and rear sides to move towards each other to the designated position. Then, the piston rods of the hydraulic cylinders 304 on both the left and right sides extend and push the corresponding push blocks 306, thereby driving the lower support bars 203 and aluminum alloy tubes 40 on both the left and right sides to move towards each other to the designated position, until the plastic corner brackets 50 on the aluminum alloy tubes 40 on both the left and right sides are inserted into the ports of the aluminum alloy tubes 40 on both the front and rear sides.

[0044] Step 3: First, the piston rods of the two hydraulic cylinders 307 on both the front and rear sides extend and push the corresponding push blocks 309, thereby driving the electric screwdrivers 310 on both the front and rear sides to move towards each other to the designated position. At the same time, the piston rods of the two hydraulic cylinders 307 on both the front and rear sides extend and push the corresponding push blocks 309, thereby driving the electric screwdrivers 310 on both the left and right sides to move towards each other to the designated position. During the above movement, the piston rods of the two hydraulic cylinders 304 on both the front and rear sides and the left and right sides retract synchronously. When the tip of the electric screwdriver 310 contacts the top cross screw 323 on the chain stud belt 322, the electric screwdriver 310 is activated and the cross screw 323 is screwed into the assembly point of the aluminum alloy tube 40 to assemble the aluminum alloy frame.

[0045] Step 4: The piston rods of the hydraulic cylinders 307 on both the front and rear sides retract and pull the corresponding push blocks 309, thereby pulling the electric screwdrivers 310 on both the front and rear sides to move in opposite directions to their initial positions. At the same time, the piston rods of the hydraulic cylinders 307 on both the front and rear sides retract and pull the corresponding push blocks 309, thereby pulling the electric screwdrivers 310 on both the left and right sides to move in opposite directions to their initial positions. During the above movement, due to the locking effect of the one-way bearing 317, the torque of the friction roller 316 can be transmitted to the mounting shaft 315 when it passes over the upper surface of the support plate 101. The mounting shaft 315 then transmits the torque to the mounting shaft 313 through the transmission belt 320, thereby driving the friction wheel 314 to rotate and driving the chain belt 322 to convey a fixed length upward, so that the next cross screw 323 moves upward to a position coaxially distributed with the electric screwdriver 310.

[0046] Step 5: The lower support strips 203 on the front and rear sides and the left and right sides are compressed by the corresponding springs 209 and return to the bottom of the corresponding outer baffle 201. The assembled aluminum alloy frame is unloaded through the frame drop opening 101a under the action of gravity.

[0047] Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not exhaustive. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. An automatic assembly equipment for corner brackets and aluminum alloy tubing, characterized in that: Includes a support assembly (10), a loading assembly (20), and an assembly assembly (30), wherein: The support component (10) is used to support the loading component (20) and the assembly component (30); The loading components (20) are provided in four and are evenly and vertically distributed above the support components (10). The four loading components (20) are used to load four stacks of aluminum alloy tubes (40). The assembly component (30) has four pairs and is horizontally distributed on the outside of the four loading components (20). The assembly component (30) is used to assemble four aluminum alloy tubes (40) on the same layer. The support assembly (10) includes a support plate (101), a support tube (102), a support pad (103), and a support strip (104). The support plate (101) is horizontally arranged. The support tube (102) has four sections that are evenly and vertically connected to the lower side of the support plate (101). The support pad (103) has four sections that are horizontally connected to the lower ends of the four support tubes (102). The support strip (104) has four sections that are evenly and horizontally connected to the upper side of the support plate (101). The support strip (104) has a row of rectangular insertion ports (104a) evenly distributed on it. The loading assembly (20) includes an outer baffle (201), side baffles (202), a lower support strip (203), an upper support plate (206), and an insert plate (207). The outer baffle (201) is vertically arranged. The side baffles (202) have a pair of symmetrically connected to the left and right sides of the outer baffle (201). The cross-section of the side baffles (202) is Z-shaped. The lower support strip (203) is horizontally arranged below the outer baffle (201). The two ends of the lower support strip (203) are symmetrically provided with a pair of U-shaped clearance holes (203a). The cross-section of the lower support strip (203) is "└" shaped. The bottom of the lower support strip (203) is uniformly connected with several "┘" shaped inner baffles (204). The inner baffles (204) are made of elastic plastic material. The two ends of the lower support strip (203) A pair of parallelogram-shaped side baffles (205) are symmetrically connected. The upper support plate (206) is horizontally positioned between the outer baffle (201) and the lower support strip (203). The two ends of the upper support plate (206) are welded to the top of the two side baffles (205). A row of rectangular clearance openings (206a) are evenly distributed on the upper support plate (206). Several insert plates (207) are provided and are evenly and vertically connected to the lower part of the outer baffle (201). Adjacent insert plates (207) are slidably positioned inside the clearance openings (206a). The lower part of the insert plate (207) is suspended downward and horizontally slidably connected to several connecting posts (208). The inner ends of the connecting posts (208) are all connected to the outer side of the lower support strip (203). A compression spring (209) is fitted on each connecting post (208). The assembly component (30) includes a straight guide rail (301), a first hydraulic cylinder (304), a second hydraulic cylinder (307), an electric screwdriver (310), a first mounting shaft (313), a second mounting shaft (315), and a chain stud belt (322). The straight guide rail (301) is horizontally inwardly positioned and connected to the upper side of the support plate (101). A sliding block (302) is slidably connected to the straight guide rail (301). A sliding plate (303) is horizontally mounted on the upper side of the sliding block (302). The first hydraulic cylinder (304) is horizontally inwardly positioned and mounted above the support plate (101) via a "┘"-shaped fixing plate (305). The piston rod of cylinder 1 (304) is connected to a push block 1 (306), which is centrally connected to the upper side of the sliding plate (303). The hydraulic cylinder 2 (307) is horizontally inward and installed on the upper side of the sliding plate (303) through a "└"-shaped fixing plate 2 (308). The piston rod of the hydraulic cylinder 2 (307) is connected to a push block 2 (309). The electric screwdriver (310) is horizontally inward and installed on the upper side of the sliding plate (303) through a pair of "∩"-shaped fixing clamps (311). A pair of mounting plates (312) are provided at the inner end of the electric screwdriver (310) with a gap. The mounting plate (312) has a cross-section of "[" shaped. The mounting shaft one (313) and mounting shaft two (315) are rotatably connected to the upper and lower sides of the two mounting plates (312), respectively. The mounting shaft one (313) has a pair of friction wheels (314) fixed between the two mounting plates (312). The mounting shaft two (315) has a friction roller (316) connected between the two mounting plates (312) through a pair of one-way bearings. The outer circumferential surface of the friction roller (316) is in contact with the upper surface of the support plate (101). The outer end of the mounting shaft one (313) is keyed to a transmission wheel one (318). The outer end of the second (315) is keyed to a transmission wheel second (319). The transmission wheel first (318) and the transmission wheel second (319) are connected by a transmission belt (320). A cantilevered connecting strip (321) is welded on the upper side of the two mounting plates (312). The cantilevered end of the connecting strip (321) is connected to the end of the piston rod of the hydraulic cylinder second (307). The chain nail belt (322) is vertically inserted between the two mounting plates (312). The outer circumferential surface of the friction wheel (314) is in contact with the outer surface of the chain nail belt (322). Horizontally inward-facing cross screws (323) are evenly inserted on the chain nail belt (322).

2. The automatic assembly equipment for corner brackets and aluminum alloy tubing according to claim 1, characterized in that: The support plate (101) has a rectangular frame opening (101a) in the middle, and a pair of rectangular nail holes (101b) are provided at the corner of the frame opening (101a).

3. The automatic assembly equipment for corner brackets and aluminum alloy tubing according to claim 1, characterized in that: The outer baffle (201) has a rectangular lifting opening (201a) in the center of its upper part.

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