Prefabricated concrete part welding device

Abstract

The invention relates to the technical field of prefabricated part welding, and discloses a concrete prefabricated part welding device which comprises a movable frame, a prefabricated plate to be welded and a prefabricated frame are installed below the movable frame, and limiting plates are arranged in the middles of the prefabricated frame and the prefabricated frame; the fixed rod is fixed to the inner wall of the movable frame, and two rotating discs are rotationally installed on the outer edge of the fixed rod; the driving part is arranged to drive the cleaning brush to be attached to the welding seam position of the prefabricated plate and the prefabricated frame to conduct left-right brushing, meanwhile, the scraping shovel can be driven to obliquely rotate left and right to shovel welding slag at the welding seam position after welding of the welding mechanical arm, and the shoveled welding slag can be directly stored in the storage box; and the linkage part is matched to drive the brushing assembly to operate, so that impurities on the surface of a welding seam can be synchronously brushed away when welding slag is cleaned, manual operation of workers is not needed, batch treatment is facilitated, and the service cycle of a prefabricated part is conveniently shortened after welding.

Description

Technical Field

[0001] This invention relates to the field of precast component welding technology, specifically to a welding device for precast concrete components. Background Technology

[0002] Precast concrete components refer to concrete products with specific functions and dimensional accuracy that are prefabricated in a standardized factory production environment through processes such as mold processing, rebar binding, concrete pouring, and curing. After being transported to the construction site, they are assembled into core components of a building or engineering structure through methods such as hoisting, splicing, and node anchoring. Essentially, it transfers the traditional on-site concrete pouring construction process to factory prefabrication, combining standardized production and assembly construction to achieve high efficiency, greenness, and quality control in engineering construction. Welding is required during processing.

[0003] In the prior art, after the welding equipment completes the welding operation, a layer of welding slag (mainly containing metal oxides, silicates and other impurities) is usually attached to the surface of the weld. As the welding slag forms a tight metallurgical bond with the weld metal during the solidification process, there are also oxide layer penetration and local biting phenomena in some areas, which makes it strong and difficult to remove. Conventional treatment methods require workers to use tools such as hammers and wire brushes to mechanically knock and crack the welding slag and peel off the impurities to complete the cleaning operation. The drawbacks of manual removal methods are as follows: on the one hand, the stubbornness of welding slag requires a large force to be applied during the cleaning process, and repeated tapping and brushing are required to remove it initially, resulting in low work efficiency; on the other hand, the production of precast components involves large-scale welding in factories, requiring a large amount of manpower for continuous operation. This not only results in high labor intensity and easy physical exhaustion for operators, but also leads to inconsistent weld cleaning quality due to differences in human skill levels, affecting the accuracy of subsequent non-destructive testing (such as ultrasonic testing and penetrant testing). Therefore, this application proposes a welding device for precast concrete components. Summary of the Invention

[0004] This invention provides a welding device for precast concrete components, which has the advantages of high automation and high efficiency. It solves the problem mentioned in the background art that the welding slag produced by welding is very stubborn, which requires a large force to be applied during the cleaning process and repeated knocking and brushing to remove it initially, resulting in low work efficiency.

[0005] This invention provides the following technical solution: a welding device for precast concrete components, comprising: a movable frame, on the lower part of which a precast slab to be welded and a precast frame are mounted, a limiting plate is provided in the middle of the precast slab and the precast frame, and a welding robot for welding the precast slab and the precast frame is mounted on the outer side of the precast slab; further comprising: a fixing rod fixed to the inner wall of the movable frame, two rotating disks rotatably mounted on the outer edge of the fixing rod, and connecting rods fixedly connected to the inner walls of the two rotating disks, and cleaning brushes fixedly connected to the bottom of the two rotating disks; the outer edge of the fixing rod... Multiple chip-pushing blades are installed in a row. Two scrapers are symmetrically installed on the outer side of one end of the connecting rod. A cylinder is installed at the bottom of the connecting rod. The output shaft of the cylinder is connected to a striking bar. A drive unit is installed on the top of the moving frame. A linkage unit is installed on the outside of the drive unit. A brush removal assembly is installed on the top of the moving frame. The chip-pushing blades are designed to insert into the gap of the cleaning brush when the cleaning brush rotates to brush the weld seam. They are used to remove the welding slag adhering to the cleaning brush and ensure that it can be fully collected inside the storage box and will not be continuously stuck in the gap between the bristles of the cleaning brush.

[0006] As a preferred embodiment of the present invention, the driving unit includes a servo motor, the output shaft of the servo motor is fixedly connected to a rotating shaft, the output shaft of the rotating shaft is fixedly connected to a turntable, a sliding ring is slidably connected to the outer edge of the connecting rod, a sliding rod is fixedly connected to the inner wall of the sliding ring, and the sliding rod is slidably connected to the inner wall of the turntable.

[0007] As a preferred embodiment of the present invention, the brush removal assembly includes an extension plate, which is installed on the top of the movable frame. The bottom of the extension plate is symmetrically connected to one end of two return springs, and the bottom ends of the two return springs are fixedly connected to a bearing plate. A wire brush is installed at the bottom of the bearing plate, and a rotating rod is fixedly connected to the top of the wire brush. A hexagonal column is fixed to the top of the rotating rod.

[0008] As a preferred embodiment of the present invention, two uprights are symmetrically installed on the top of the bearing disc, and the two uprights are slidably connected to the extension plate through the inner wall of the two return springs, and the rotating rod is rotatably connected to the inner wall of the bearing disc.

[0009] As a preferred embodiment of the present invention, the linkage includes a driven wheel, which is rotatably connected to the top of the extension plate. The hexagonal column is adapted to be slidably connected to the inner wall of the driven wheel. A driving wheel is installed on the outer edge of the rotating shaft. A transmission belt is sleeved on the inner wall of the driving wheel and the driven wheel.

[0010] As a preferred embodiment of the present invention, a stud is slidably inserted into the inner wall of the movable frame, and two abutment brackets are slidably installed on the outer edge of the stud. The two abutment brackets are symmetrically arranged and abut against the outer wall of the precast slab and the precast frame, respectively. A storage box is rotatably installed on the inner wall of each of the two abutment brackets. An electric push rod is rotatably installed on the inner wall of the abutment bracket. A pressure strip is rotatably connected to the output shaft of the electric push rod. The top of the pressure strip is fixedly connected to the bottom of the storage box, and the side of the pressure strip away from the electric push rod abuts against the outer wall of the precast frame.

[0011] As a preferred embodiment of the present invention, the bottom of each of the two abutment frames is rotatably connected to an electric push rod II, and the output shafts of the two electric push rod II are rotatably connected to a pressure plate, and the two pressure plates abut against the outer wall of the precast slab and the precast frame respectively.

[0012] As a preferred embodiment of the present invention, the stud is threaded with a plurality of nuts on its outer edge, and the nuts abut against the outer wall of the abutment frame.

[0013] As a preferred embodiment of the present invention, a slider and a limiting block are respectively installed on the outer wall of the movable frame, a lead screw is threadedly connected to the inner wall of the slider, one end of the lead screw is fixedly connected to the output shaft of a stepper motor, a guide shaft is slidably connected to the inner wall of the limiting block, and both the stepper motor and the guide shaft are installed on the frame of the operating station.

[0014] As a preferred embodiment of the present invention, the two storage boxes are respectively attached to the outer walls of the prefabricated panel and the prefabricated frame, and a chamfer is provided at the highest point of the inner side of the storage box.

[0015] The present invention has the following beneficial effects: 1. This invention, by setting a drive unit to drive a cleaning brush to brush left and right at the weld position of the precast slab and precast frame, can simultaneously drive a scraper to rotate left and right in an inclined manner to remove the welding slag at the weld position after welding by the welding robot. This allows the scraped welding slag to be directly collected into the inside of the collection box. In addition, the linkage unit drives the brush removal component to operate, so that surface impurities of the weld can be removed simultaneously when cleaning welding slag. No manual operation by the staff is required, and it is convenient for batch processing, which can speed up the service life of the precast parts after welding.

[0016] 2. In this invention, a first set of electric push rods is driven to push a pressure strip against the outer wall of the precast frame, which is used to support and position the middle part of the precast frame. Another set of electric push rods and pressure strips can be used to support and position the middle part of the precast slab, ensuring the stability of the precast frame and precast slab during welding slag cleaning and ensuring that they will not easily tip over when under force. Furthermore, a second set of electric push rods drives a pressure plate to adhere to the bottom outer wall of the precast frame and precast slab, which can be used to enhance the stability of the precast slab and precast frame. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective; Figure 3 This is a schematic diagram of the planar structure of the present invention; Figure 4 This is a schematic diagram of the scraper structure of the present invention; Figure 5 This is a schematic diagram of the chip pusher structure of the present invention; Figure 6 This is a schematic diagram of the pressure plate structure of the present invention; Figure 7 This is a schematic diagram of the wire brush structure of the present invention.

[0018] In the diagram: 1. Movable frame; 2. Precast slab; 3. Precast frame; 4. Limiting plate; 5. Abutment frame; 6. Stud; 7. Storage box; 8. Electric push rod one; 9. Pressure strip; 10. Electric push rod two; 11. Pressure plate; 12. Nut; 13. Fixing rod; 14. Rotating disk; 15. Cleaning brush; 16. Chip pusher; 17. Connecting rod; 18. Sliding ring; 19. Slide rod; 20. Servo motor; 21. Rotation. 21. Shaft; 22. Turntable; 23. Scraper; 24. Cylinder; 25. Striking bar; 26. Extension plate; 27. Return spring; 28. Bearing disc; 29. ​​Upright pole; 30. Wire brush; 31. Rotating rod; 32. Hexagonal column; 33. Driven wheel; 34. Transmission belt; 35. Driving wheel; 36. Stepper motor; 37. Lead screw; 38. Slider; 39. Guide shaft; 40. Limit block; 41. Welding robot. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1-7A welding device for precast concrete components includes a movable frame 1, with a precast slab 2 and a precast frame 3 to be welded mounted below the movable frame 1. A limiting plate 4 is provided in the middle of the precast slab 2 and the precast frame 3. A welding robot 41 for welding the precast slab 2 and the precast frame is mounted on the outer side of the precast slab 2. The device also includes a fixed rod 13 fixed to the inner wall of the movable frame 1. Two rotating disks 14 are rotatably mounted on the outer edge of the fixed rod 13, and connecting rods 17 are fixedly connected to the inner walls of the two rotating disks 14. Cleaning brushes 15 are fixedly connected to the bottom of the two rotating disks 14. Multiple chip-pushing blades 16 are arranged in a row along the outer edge of the fixed rod 13. Two scrapers 23 are symmetrically mounted on the outer end of one side of the connecting rod 17. A cylinder 24 is installed at the bottom of the frame, and the output shaft of the cylinder 24 is connected to a striking bar 25. A drive unit is installed on the top of the moving frame 1, and a linkage unit is installed on the outside of the drive unit. A brush removal assembly is installed on the top of the moving frame 1, so that the drive unit can drive the connecting rod 17 to swing on the inner wall of the moving frame 1, and further drive the two rotating disks 14 to rotate and swing on the outer edge of the fixed rod 13, so that the cleaning brush 15 is in contact with the weld seam of the precast plate 2 and the precast frame 3 to brush. At the same time, the scraper 23 can be driven to rotate left and right at an angle to remove the welding slag at the weld seam. Simultaneously, the cylinder 24 can be driven to move the striking bar 25 vertically downward to strike the welding slag at the weld seam, which is used to further remove the welding slag.

[0021] See Figure 5 The drive unit includes a servo motor 20, the output shaft of the servo motor 20 is fixedly connected to a rotating shaft 21, the output shaft of the rotating shaft 21 is fixedly connected to a turntable 22, the outer edge of the connecting rod 17 is slidably connected to a sliding ring 18, the inner wall of the sliding ring 18 is fixedly connected to a sliding rod 19, and the sliding rod 19 is slidably connected to the inner wall of the turntable 22. In this solution, the component rotating shaft 21 and the turntable 22 can be rotated by the servo motor 20 of the drive device, thereby causing the component slide rod 19 to slide up and down along the inner wall of the turntable 22; at the same time, the component sliding ring 18 can be driven to slide along the outer edge of the connecting rod 17, thereby driving the component connecting rod 17 and the turntable 14 to swing left and right.

[0022] See Figure 7 The brushing assembly includes an extension plate 26, which is mounted on the top of the movable frame 1. Two return springs 27 are symmetrically connected to one end of the bottom of the extension plate 26, and a bearing plate 28 is fixedly connected to the bottom end of the two return springs 27. A wire brush 30 is installed at the bottom of the bearing plate 28, and a rotating rod 31 is fixedly connected to the top of the wire brush 30. A hexagonal column 32 is fixed to the top of the rotating rod 31.

[0023] Among them, two uprights 29 are symmetrically installed on the top of the bearing disk 28, and the two uprights 29 are slidably connected to the extension plate 26 through the inner wall of the two return springs 27. The rotating rod 31 is rotatably connected to the inner wall of the bearing disk 28. In this design, the rotating rod 31 drives the wire brush 30 to rotate, which can remove small impurities adhering to the weld, improving the comprehensiveness of the cleaning. Furthermore, the elastic pushing force of the two return springs 27 can be used to push the wire brush 30 tightly against the top of the precast slab 2 and the precast frame 3, ensuring the fit during brushing. The upright rod 29 ensures the stability of the return spring 27 under force, ensuring that the return spring 27 will not easily twist or shift its position when the weld surface has protrusions that lift the wire brush 30. In addition, the bearing plate 28 ensures that the wire brush 30 will not interfere with the bearing plate 28 when rotating, and the wire brush 30 can also receive the force applied by the upright rod 29 to the bearing plate 28 in real time.

[0024] See Figure 7 The linkage includes a driven wheel 33, which is rotatably connected to the top of the extension plate 26. A hexagonal column 32 is adapted to slide on the inner wall of the driven wheel 33. A driving wheel 35 is installed on the outer edge of the rotating shaft 21. A transmission belt 34 is sleeved on the inner wall of the driving wheel 35 and the driven wheel 33. In this scheme, the rotating shaft 21 can drive the driving wheel 35 to rotate synchronously, and then the transmission belt 34 can transmit the rotational force to the driven wheel 33 to drive the hexagonal column 32 and the rotating rod 31 to drive the wire brush 30 to rotate synchronously, so as to achieve synchronous cleaning of welding slag and synchronous removal of weld impurities.

[0025] See Figure 3 and Figure 6 The inner wall of the movable frame 1 is slidably connected with a stud 6. Two abutment frames 5 are slidably installed on the outer edge of the stud 6. The two abutment frames 5 are symmetrically arranged and abut against the outer walls of the precast slab 2 and the precast frame 3 respectively. A storage box 7 is rotatably installed on the inner wall of each abutment frame 5. An electric push rod 8 is rotatably installed on the inner wall of the abutment frame 5. The output shaft of the electric push rod 8 is rotatably connected to a pressure strip 9. The top of the pressure strip 9 is fixedly connected to the bottom of the storage box 7. The side of the pressure strip 9 away from the electric push rod 8 abuts against the outer wall of the precast frame 3. Among them, the bottom of each of the two abutting frames 5 is rotatably connected to an electric push rod 10, and the output shaft of each of the two electric push rods 10 is rotatably connected to a pressure plate 11, and the two pressure plates 11 abut against the outer walls of the precast slab 2 and the precast frame 3 respectively. In this scheme, the studs 6 can be used to install the abutment frame 5 on both sides of the precast slab 2 and the precast frame 3 respectively. Further, the electric push rod 8 can be driven to push the pressure strip 9 to adhere to the outer wall of the precast frame 3 for supporting and positioning the middle position of the precast frame 3. Another set of electric push rods 8 and pressure strip 9 can be used to support and position the middle of the precast slab 2, ensuring the stability of the precast frame 3 and the precast slab 2 during slag cleaning and ensuring that they will not easily tip over when under force. The electric push rod 10 can be driven to move the pressure plate 11 to adhere to the bottom outer wall of the precast frame 3 and the precast slab 2, which can enhance the stability of the precast slab 2 and the precast frame 3. When moving the moving frame 1 to clean slag at different positions, the electric push rods 8 and 10 can be driven to move the pressure strip 9 and the pressure plate 11 to move their positions and disengage from the positioning of the precast slab 2 and the precast frame 3.

[0026] See Figure 3 The stud 6 has multiple nuts 12 threadedly connected to its outer edge, and the nuts 12 abut against the outer wall of the abutment frame 5. In this solution, the nut 12 can be used to lock the abutment frame 5, ensuring that the abutment frame 5 can fit tightly against the outer wall of the precast slab 2 and the precast frame 3, and is easy to adapt to precast frame components of different widths and sizes.

[0027] See Figure 2 The outer wall of the movable frame 1 is respectively equipped with a slider 38 and a limit block 40. The inner wall of the slider 38 is threaded with a lead screw 37. One end of the lead screw 37 is fixedly connected to the output shaft of the stepper motor 36. The inner wall of the limit block 40 is slidably connected with a guide shaft 39. Both the stepper motor 36 and the guide shaft 39 are installed with the frame of the operating station. In this solution, the stepper motor 36 drives the lead screw 37 to rotate, which in turn drives the slider 38 and the moving frame 1 to move their positions. This allows the user to avoid certain positions when welding the precast plate 2 and the precast frame 3. It also facilitates the cleaning of welds at different locations. At the same time, the guide shaft 39, in conjunction with the limiting block 40, guides the moving frame 1 to ensure that it does not easily deviate from its position during movement. The moving frame 1 can also be driven to move back and forth for brushing and cleaning.

[0028] See Figure 3 and Figure 6 The two storage boxes 7 are respectively attached to the outer walls of the precast slab 2 and the precast frame 3. The highest point of the inner side of the storage box 7 is chamfered, so that when the storage box 7 is attached to the outside of the precast slab 2 and the precast frame 3, the cleaning brush 15 can swing about to collect the weld impurities cleaned.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding device for precast concrete components, comprising: A mobile frame (1) is provided with a precast plate (2) and a precast frame (3) to be welded installed below the mobile frame (1). A limiting plate (4) is provided in the middle of the precast plate (2) and the precast frame (3). A welding robot (41) for welding the precast plate (2) and the precast frame is installed on the outside of the precast plate (2). Its characteristic is that it also includes: A fixed rod (13) is fixed to the inner wall of the mobile frame (1). Two rotating disks (14) are rotatably installed on the outer edge of the fixed rod (13). A connecting rod (17) is fixedly connected to the inner wall of the two rotating disks (14). A cleaning brush (15) is fixedly connected to the bottom of the two rotating disks (14). Multiple chip-pushing blades (16) are installed in a row on the outer edge of the fixed rod (13). Two scrapers (23) are symmetrically installed on the outer side of one end of the connecting rod (17). A cylinder (24) is installed at the bottom of the connecting rod (17). A knocking bar (25) is connected to the output shaft of the cylinder (24). A drive unit is installed on the top of the mobile frame (1). A linkage unit is installed on the outside of the drive unit. A brush removal assembly is installed on the top of the mobile frame (1).

2. The welding device for precast concrete components according to claim 1, characterized in that: The drive unit includes a servo motor (20), the output shaft of the servo motor (20) is fixedly connected to a rotating shaft (21), the output shaft of the rotating shaft (21) is fixedly connected to a turntable (22), the outer edge of the connecting rod (17) is slidably connected to a sliding ring (18), the inner wall of the sliding ring (18) is fixedly connected to a sliding rod (19), and the sliding rod (19) is slidably connected to the inner wall of the turntable (22).

3. The welding device for precast concrete components according to claim 1, characterized in that: The brush removal assembly includes an extension plate (26), which is installed on the top of the movable frame (1). The bottom of the extension plate (26) is symmetrically connected to one end of two return springs (27), and the bottom ends of the two return springs (27) are fixedly connected to a bearing plate (28). A wire brush (30) is installed at the bottom of the bearing plate (28), and a rotating rod (31) is fixedly connected to the top of the wire brush (30). A hexagonal column (32) is fixed to the top of the rotating rod (31).

4. The welding device for precast concrete components according to claim 3, characterized in that: Two uprights (29) are symmetrically installed on the top of the bearing disc (28), and the two uprights (29) are slidably connected to the extension plate (26) through the inner wall of the two return springs (27), and the rotating rod (31) is rotatably connected to the inner wall of the bearing disc (28).

5. The welding device for precast concrete components according to claim 3, characterized in that: The linkage includes a driven wheel (33), which is rotatably connected to the top of the extension plate (26). The hexagonal column (32) is adapted to slide on the inner wall of the driven wheel (33). A driving wheel (35) is installed on the outer edge of the rotating shaft (21). A transmission belt (34) is sleeved on the inner wall of the driving wheel (35) and the driven wheel (33).

6. The welding device for precast concrete components according to claim 1, characterized in that: The inner wall of the movable frame (1) is slidably connected with a stud (6). Two abutment frames (5) are slidably installed on the outer edge of the stud (6). The two abutment frames (5) are symmetrically arranged and abut against the outer walls of the precast plate (2) and the precast frame (3) respectively. A storage box (7) is rotatably installed on the inner wall of each of the two abutment frames (5). An electric push rod (8) is rotatably installed on the inner wall of the abutment frame (5). A pressure strip (9) is rotatably connected to the output shaft of the electric push rod (8). The top of the pressure strip (9) is fixedly connected to the bottom of the storage box (7). The side of the pressure strip (9) away from the electric push rod (8) abuts against the outer wall of the precast frame (3).

7. The welding device for precast concrete components according to claim 6, characterized in that: The bottom of each of the two abutment frames (5) is rotatably connected to an electric push rod (10), and the output shafts of the two electric push rods (10) are rotatably connected to a pressure plate (11), and the two pressure plates (11) abut against the outer walls of the precast plate (2) and the precast frame (3) respectively.

8. A welding device for precast concrete components according to claim 6, characterized in that: The stud (6) has multiple nuts (12) threadedly connected to its outer edge, and the nuts (12) abut against the outer wall of the abutment frame (5).

9. A welding device for precast concrete components according to claim 1, characterized in that: The outer wall of the movable frame (1) is respectively equipped with a slider (38) and a limiting block (40). The inner wall of the slider (38) is threaded with a lead screw (37). One end of the lead screw (37) is fixedly connected to the output shaft of a stepper motor (36). The inner wall of the limiting block (40) is slidably connected with a guide shaft (39). Both the stepper motor (36) and the guide shaft (39) are installed on the frame of the operating station.

10. A welding device for precast concrete components according to claim 6, characterized in that: The two storage boxes (7) are respectively attached to the outer walls of the precast panel (2) and the precast frame (3), and a chamfer is provided at the highest point of the inner side of the storage box (7).

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