An automatic feeding and tracking laser marking machine for anchor bolts

Abstract

The present invention specifically relates to an automatic feeding and tracking laser marking machine for anchor bolts, comprising an automatic feeding system for feeding and unloading anchor bolts one by one, a servo laser for tracking and marking anchor bolts, and a PLC control system for controlling the coordinated operation of each system, wherein the PLC control system is respectively connected to the automatic feeding system and the servo laser. The present invention realizes mechanical automation for laser marking of anchor bolts through the above technical solution, improves the clarity of the mark, reduces the labor intensity of workers, and improves the production efficiency of the factory.

Description

Technical Field

[0001] The invention belongs to the technical field of production of anchor bolts for power transmission towers, and in particular relates to an automatic feeding and tracking laser marking machine for anchor bolts. Background Art

[0002] According to the requirements of DL / T 1236-2013 "Anchor Bolts and Nuts for Transmission Towers", "The end surface of the anchor bolt exposed to the ground should be marked with performance grade and manufacturer identification marks in concave or convex characters, and the marking requirements should comply with the provisions of GB / T 3098.1". The traditional marking method is to use steel stamping molds and manually hammer to mark the anchor bolts. This method is time-consuming and labor-intensive, and there is a problem that the local marking is not clear. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic feeding and tracking laser marking machine for anchor bolts to solve the above technical problems.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A foundation bolt automatic feeding tracking laser marking machine comprises an automatic feeding system for feeding and unloading foundation bolts one by one, a servo laser for tracking and marking the foundation bolts, and a PLC control system for controlling the coordinated operation of each system, wherein the PLC control system is respectively connected to the automatic feeding system and the servo laser.

[0006] Among them, the present invention can further include the following technical solutions: the automatic feeding system includes a support frame for supporting the anchor bolts and a pusher for pushing the anchor bolts to move on the step frame, and the pushing side of the pusher along the feeding direction is fixed to the side of the support frame.

[0007] Among them, the present invention can further include the following technical solutions: the support frame includes a storage rack for supporting and caching the anchor bolts to be marked, a step feeding rack for supporting the loading of the anchor bolts, and a unloading rack for supporting the unloading and caching of the anchor bolts after marking, and the storage rack, the step feeding rack and the unloading rack are connected in sequence.

[0008] Among them, the present invention can further include the following technical solution: the stepped feeding rack is a V-shaped structure.

[0009] Among them, the present invention can further include the following technical solution: the servo laser is located on one side or both sides of the step feeding rack.

[0010] Among them, the present invention can further include the following technical solutions: the automatic feeding system also includes a feeder for transversely transporting anchor bolts, and the feeder is arranged in a recessed position of the ladder frame.

[0011] The present invention may further include the following technical solution: a limiting column for locating the end position of the anchor bolt is vertically arranged along the feeding direction of the feeder.

[0012] Among them, the present invention can further include the following technical solution: a material stopper for releasing materials one by one is arranged at the connection between the material storage rack and the step feeding rack.

[0013] Among them, the present invention can further include the following technical solutions: the servo laser includes a servo tracker for tracking anchor bolts and a laser for measuring distance and marking, the laser is fixed on the servo tracker, and the laser moves with the movement of the servo tracker.

[0014] The present invention may further include the following technical solution: the PLC control system includes a feeding control system and a laser control system, and the feeding control system is signal-connected to the laser control system.

[0015] Beneficial effects:

[0016] The present invention realizes mechanical automation of laser marking of anchor bolts through the above technical scheme, thereby improving the clarity of markings, reducing the labor intensity of workers, and improving the production efficiency of the factory. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of an automatic feeding and tracking laser marking machine for anchor bolts of the present invention;

[0018] Figure 2 It is a right view structural schematic diagram of the support frame of the present invention;

[0019] Figure 3 It is a structural schematic diagram of the feeder of the present invention;

[0020] Figure 4 It is a structural schematic diagram of the feeder of the present invention feeding materials to the position of the limit column;

[0021] Figure 5 It is a structural schematic diagram of the feeding process of the step feeding rack of the present invention.

[0022] Among them, the figure markings are: 1. PLC control system; 2. servo laser; 3. support frame; 4. pusher; 5. anchor bolt; 6. storage rack; 7. step feeder rack; 8. unloading rack; 9. material blocking column; 10. curtain cloth; 11. feeder; 12. limit column. DETAILED DESCRIPTION

[0023] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] A foundation bolt automatic feeding tracking laser marking machine comprises an automatic feeding system for feeding and unloading foundation bolts 5 one by one, a servo laser 2 for tracking and marking the foundation bolts 5, and a PLC control system 1 for controlling the coordinated operation of each system. The PLC control system 1 is respectively connected to the automatic feeding system and the servo laser 2.

[0025] The present invention may further include the following technical solutions: the automatic feeding system includes a support frame 3 for supporting the anchor bolts 5 and a pusher 4 for pushing the anchor bolts 5 to move on the step frame, and the pusher 4 is fixed to the side of the support frame 3 along the pushing side of the feeding direction. There are multiple pushers 4, and at least two pushers 4 are provided for each anchor bolt 5 to perform a pushing action, and multiple pushers 4 are evenly distributed in the length direction of the anchor bolt 5 to ensure that the anchor bolt 5 always moves in a direction perpendicular to the feeding direction, avoiding the tilting and slipping phenomenon caused by uneven support force during the pushing process. The pusher 4 includes a pusher cylinder and a pusher plate fixed to the end of the telescopic rod of the pusher cylinder, the pusher plate surface is parallel to the anchor bolt 5, and the telescopic direction of the telescopic rod of the pusher cylinder is perpendicular to the length direction of the anchor bolt 5.

[0026] Among them, the present invention can further include the following technical solutions: the support frame 3 includes a storage rack 6 for supporting and caching the anchor bolts 5 to be marked, a step feeder rack 7 for supporting the loading of the anchor bolts 5, and a discharge rack 8 for supporting the caching of the anchor bolts 5 after marking, and the storage rack 6, the step feeder rack 7 and the discharge rack 8 are connected in sequence. The storage rack 6 is arranged obliquely downward along the loading direction of the anchor bolts 5, the step feeder rack 7 is arranged horizontally and undulatingly along the loading direction of the anchor bolts 5, the discharge rack 8 is arranged obliquely downward along the loading direction of the anchor bolts 5, and a stopper column 9 is arranged at the end of the discharge rack 8 along the loading direction of the anchor bolts 5. The stopper column 9 is used to support and prevent the anchor bolts 5 from continuing to slide down after unloading, so as to facilitate the collection of the staff and avoid slipping off the support frame 3 to cause safety hazards. Furthermore, a protective cover is provided on the outer periphery of the support frame 3, and a curtain 10 is provided at the connection between the protective cover corresponding to the step feeding rack 7 and the unloading rack 8 for blocking the leakage of laser during the laser marking process, so that workers are not affected by the laser when carrying the anchor bolts 5 on the unloading rack 8, thereby improving the production safety factor.

[0027] The present invention may further include the following technical solutions: the step feed rack 7 is a V-shaped structure. The V-shaped structure can automatically center the anchor bolt 5, so that the anchor bolt 5 can accurately slide to the lowest end of the V-shape each time it moves, and at the same time, through the clamping effect of the two sides of the V-shape, the anchor bolt 5 is not easily subjected to rolling due to external forces.

[0028] The present invention may further include the following technical solution: the servo laser 2 is located on one side or both sides of the step feed rack 7. The servo laser 2 is arranged on one side of the feed rack, and laser marking can be performed on one side of the anchor bolt 5. When the servo laser 2 is arranged on both sides, the two ends of the anchor bolt 5 can be laser marked at the same time, thereby improving production efficiency.

[0029] The present invention may further include the following technical solutions: the automatic feeding system also includes a feeder 11 for horizontally conveying the anchor bolts 5, and the feeder 11 is arranged in the recess of the step frame. The feeder 11 includes a feeding roller and a feeding drive motor, and the feeding drive motor drives the feeding shaft to rotate through a chain and a gear assembly, thereby driving the anchor bolts 5 placed on the feeding shaft to move horizontally, and the feeding shaft is an hourglass-shaped feeding shaft with protruding ends and a recessed middle. The hourglass-shaped feeding shaft can ensure that the anchor bolts 5 are limited by the hourglass shape after falling into it, so that the central axis height of the feeding shaft is higher than the bottom of the V-shaped groove of the step feeding frame 7.

[0030] The present invention may further include the following technical solutions: a limit column 12 for locating the end position of the anchor bolt 5 is vertically arranged along the feeding direction of the feeder 11. By setting the limit column 12, the feeder 11 can uniformly transport the anchor bolts 5 to the same position, which is convenient for the next step of laser positioning and marking. The limit column 12 is arranged perpendicular to the anchor bolt 5, so that the anchor bolt 5 moves to the position of the limit column 12 each time, ensuring the uniformity of the position of the anchor bolt 5. The feeder 11 is provided with multiple limit columns along the length direction of the anchor bolt 5, which disperse the support and ensure sufficient lateral driving force.

[0031] Among them, the present invention can further include the following technical solutions: a stopper for discharging materials one by one is provided at the connection between the material storage rack 6 and the step feeding rack 7. Since the material storage rack 6 is arranged to be tilted downward, and the material storage rack 6 is continuously connected to the step feeding rack 7, a stopper needs to be provided to ensure that the anchor bolts 5 can be fed from the material storage rack 6 to the step feeding rack 7 one by one at a predetermined speed. The stopper is provided at the end of the material storage rack 6 along the feeding direction of the anchor bolts 5. The stopper includes a stopper cylinder and a stopper block connected to the end of the telescopic rod of the stopper cylinder. When the stopper cylinder is in an extended state, the stopper block protrudes from the material storage rack 6. When the stopper cylinder is in a retracted state, the top of the stopper block is flush with the material storage rack 6. Preferably, a plurality of stoppers are provided and are arranged at intervals according to the diameter distance of the anchor bolts 5. The stoppers not in the same placement direction of the anchor bolts 5 are sequentially extended and retracted when discharging, thereby ensuring that only one anchor bolt 5 is discharged at a time.

[0032] The present invention may further include the following technical solutions: the servo laser 2 includes a servo tracker for tracking the anchor bolt 5 and a laser for measuring the distance and marking, the laser is fixed on the servo tracker, and the laser moves with the movement of the servo tracker. Since the pusher 4 pushes the anchor bolt 5 to slide into the next V-groove mainly by gravity, the anchor bolt 5 that has been positioned by the limit column 12 will produce a slight displacement. In order to enhance the effect of laser marking, a servo tracker is set on the laser to fine-tune the position of the laser according to the position of the anchor bolt 5, thereby ensuring that the quality of laser marking is reliable and stable.

[0033] The present invention may further include the following technical solutions: the PLC control system 1 includes a feeding control system and a laser control system, and the feeding control system is connected to the laser control system by signals. The feeding process and the laser marking process are automatically controlled by the PLC control system 1.

[0034] Working process: the staff places the anchor bolts to be marked on the storage rack, and the anchor bolts slide down to the bottom of the storage rack under the action of gravity. The storage rack is set to a gentle slope, and the bottom of the slope is blocked by a material stopper, so that the anchor bolts are arranged side by side in a single row on the storage rack. The PLC controller is started to control the material stopper on the storage rack to move successively, so that an anchor bolt is released to the ladder feeder. The ladder feeder includes four V-grooves, including the first V-groove, the second V-groove, the third V-groove and the fourth V-groove arranged in sequence from the feeding direction. The first pusher, the second pusher, the third pusher and the fourth pusher are arranged on the side of each V-groove. The anchor bolt first enters the first V-groove and is buffered at the first V-groove. The setting of the first V-groove can also prevent the anchor bolts from entering the marking area of ​​the ladder feeder too much when the material stopper fails. Then the system controls the pusher set on the side of the first V-groove to move, so that the anchor bolt located in the first V-groove is pushed into the second V-groove. In the groove, the feeder located in the second V-groove drags the anchor bolt to move toward the limit column under the action of the feeding drive motor until it is blocked by the limit column. At this time, although the feeder is still moving, due to the obstruction, the anchor bolt can only slide continuously relative to the feeder. At this time, the second pusher located on the side of the second V-groove moves to push the anchor bolt into the third V-groove. A servo laser is arranged on the outer side of the third V-groove. The system controls the servo tracker to track the position of the anchor bolt and drives the laser to move to the predetermined marking position. The laser performs laser ranging, and then according to the measured distance, the system selects the appropriate power for laser marking, thereby dynamically adjusting the laser marking power to ensure the uniformity of the marking quality of each anchor bolt. After the standard is met, the third pusher moves to push the marked anchor bolt into the fourth V-groove for cooling, and then the marked anchor bolt is pushed into the unloading rack through the fourth pusher, thereby completing the automatic marking process of an anchor bolt. Through the control of the PLC controller, the automatic marking time of two adjacent anchor bolts can be planned, and the action time of each push cylinder can be controlled according to the time plan, so that the two adjacent anchor bolts pass through each V-groove in turn, ensuring uninterrupted production and improving production efficiency.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An automatic feeding and tracking laser marking machine for anchor bolts, characterized by: It includes an automatic feeding system for loading and unloading anchor bolts one by one, a servo laser for tracking and marking anchor bolts, and a PLC control system for controlling the coordinated operation of each system, and the PLC control system is respectively connected to the automatic feeding system and the servo laser control; The automatic feeding system comprises a support frame for supporting the anchor bolts and a pusher for pushing the anchor bolts to move on the step frame, and the pushing side of the pusher along the feeding direction is fixed to the side of the support frame; The support frame includes a material storage frame for supporting and caching anchor bolts to be marked, a step feeding frame for supporting the loading of anchor bolts, and a material unloading frame for supporting the unloading and caching of anchor bolts after marking, and the material storage frame, the step feeding frame and the material unloading frame are connected in sequence; The servo laser comprises a servo tracker for tracking anchor bolts and a laser for measuring distance and marking. The laser is fixed on the servo tracker and moves with the movement of the servo tracker.

2. According to claim 1, the automatic feeding and tracking laser marking machine for anchor bolts is characterized by: The step feeding rack is a V-shaped structure.

3. According to claim 2, the automatic feeding and tracking laser marking machine for anchor bolts is characterized by: The servo laser is located on one side or both sides of the step feeding rack.

4. According to claim 3, the automatic feeding and tracking laser marking machine for anchor bolts is characterized by: The automatic feeding system also includes a feeder for transversely conveying anchor bolts, and the feeder is arranged in a recessed position of the ladder frame.

5. According to claim 4, the automatic feeding and tracking laser marking machine for anchor bolts is characterized by: A limiting column for locating the end position of the anchor bolt is vertically arranged along the feeding direction of the feeder.

6. According to claim 1, the automatic feeding and tracking laser marking machine for anchor bolts is characterized by: A material stopper for releasing materials one by one is arranged at the connection between the material storage rack and the step feeding rack.

7. According to claim 1, the automatic feeding and tracking laser marking machine for anchor bolts is characterized by: The PLC control system includes a feeding control system and a laser control system, and the feeding control system is signal-connected with the laser control system.

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