Feeding manipulator for laser cutting machine

Abstract

The utility model relates to a feeding manipulator for a laser cutting machine. The feeding manipulator comprises a support, the power mechanism is arranged on the support; the rack is vertically and slidably arranged on the support and is used for being driven by the power mechanism to slide up and down; the gear is rotationally arranged on the support and is connected with the rack in a meshed manner; the swing arm is connected with the gear in a follow-up manner; the clamping and feeding part is connected with the swing arm and used for being driven by the swing arm to take and feed materials; one end of the buffering assembly is connected with the swing arm, the other end of the buffering assembly is connected with the support, the buffering assembly plays a buffering role in the rotating process after the pipe is loaded, the load is relieved, and the service life of equipment is prolonged; the horizontal limiting assembly is used for horizontally limiting the clamping and feeding part when the clamping and feeding part is used for feeding, so that the clamping and feeding part and a machining station are located in the same horizontal plane, and the feeding precision is ensured; the power mechanism drives the rack to slide, the rack drives the gear to drive the swing arm to rotate, and then the clamping and feeding part is driven to take and feed materials.

Description

Technical Field

[0001] The utility model relates to the field of automation equipment, in particular to a loading manipulator for a laser cutting machine. Background Art

[0002] Since laser pipe cutting machines have the characteristics of high precision, fast cutting, not limited to cutting patterns, smooth cut surfaces, and low processing costs, they have gradually replaced traditional pipe cutting process equipment. In the whole processing process of the laser pipe cutting machine for pipes, the feeding process is an important link. Whether the pipes can be quickly and accurately transported to the processing position determines the efficiency and processing quality of the whole processing process. However, most of the existing pipe feeding mechanisms adopt manual feeding or semi-automatic feeding methods. The efficiency of these two feeding methods is relatively low. When encountering pipes with a very large mass, lifting equipment is also needed for operation, which takes a long time, has low efficiency and a relatively high degree of danger. Although the use of automatic feeding methods can reduce the labor intensity of operators, the existing feeding devices with a relatively high degree of automation have insufficient inclusiveness for pipe types, sizes, pipe wall thicknesses, etc., and the success rate of feeding once is relatively low, and multiple operations are required, which cannot meet the use requirements of laser pipe cutting machines.

[0003] Patent No. CN201820981308.2 discloses a pipe loading device, which relates to the field of machine tool feeding. This device uses multiple parts to cooperate to ensure the automation and orderly progress of pipe material transportation. Among them, the material storage part is mainly used to carry and send out pipes. The stacked pipes are laid flat on the conveying platform of the feeding part under the action of the height limiting part. The feeding part transports the pipes to the sliding rack slope of the material selection platform in the material selection part. In the material selection part, the moving hard limit positions the pipes, and the pipes are selected by moving the moving hard limit. The material distribution part distributes the pipes; the pipes are positioned by the fixed-length part. After the positioning is completed, the rotating feeding part transports the pipes to the processing area. In the specific implementation manner of this disclosed patent, it is recorded that the feeding chain 31 of the feeding part 3 cooperates with the supporting sprocket 32 to send the pipe 8 to the sliding rack 51. Since the sliding rack 51 has a certain slope, the pipe 8 slides freely under its own gravity to the moving hard limit 52. A sensor is installed in the moving hard limit 52. At this time, the pipe senses with the sensor installed in the moving hard limit 52, and the feeding motor stops rotating, and the feeding part 3 stops working. The rotating shaft 73 passes through the cantilever brackets 741 of the first pipe clamping mechanism 74 and the second pipe clamping mechanism 75, and drives the clamping and feeding part 742 to rotate. The pipe 8 is transported from the material distribution part 6 to the processing area by the clamping and feeding part 742. When loading pipes with a relatively large mass, only a single motor and a drive shaft are used to drive multiple manipulators to rotate, and the load is relatively large, and the drive shaft is prone to twist or break, affecting the service life of the equipment. Therefore, the utility model proposes a loading manipulator for a laser cutting machine. Content of the Utility Model

[0004] The technical problem to be solved by the present utility model is to overcome the above-mentioned disadvantages of the prior art, and provide a single-tube material distribution device. A plurality of the material distribution devices are provided, and each feeding device is driven by a separate power mechanism, which can evenly distribute the load. The buffer assembly plays a buffering role during the rotation of the swing arm, shares the load received by the swing arm, and extends the service life; the horizontal limiting assembly is used to horizontally limit the clamping and feeding part so that it is in the same horizontal plane as the processing station, thereby ensuring that the pipe material is accurately fed to the processing station.

[0005] The loading manipulator for a laser cutting machine provided by the present utility model includes:

[0006] A support;

[0007] A power mechanism, arranged on the support;

[0008] A rack, arranged on the support through a vertical slide rail, and used to slide on the support driven by the power mechanism;

[0009] A gear, rotatably arranged on the support and meshed with the rack;

[0010] A swing arm, connected to the gear in a follow-up manner;

[0011] A clamping and feeding part, connected to the swing arm, and used to perform material picking and feeding driven by the swing arm;

[0012] A buffer assembly, one end of the buffer assembly is connected to the swing arm, and the other end is connected to the support;

[0013] A horizontal limiting assembly, used to horizontally limit the clamping and feeding part during feeding;

[0014] Wherein, when the power mechanism drives the rack to slide, the rack drives the gear to drive the swing arm to rotate, and further drives the clamping and feeding part to perform material picking and feeding.

[0015] Preferably, the power mechanism includes a vertically arranged driving cylinder, and the ejector rod of the driving cylinder is connected to the rack

[0016] Preferably, the clamping and feeding part includes a servo telescopic assembly and a clamping jaw arranged at the front end of the servo telescopic assembly.

[0017] Preferably, the horizontal limiting assembly includes a vertical plate arranged on the front surface of the support, and a supporting block is arranged at the top of the vertical plate.

[0018] Preferably, a push block is connected to the side of the clamping jaw through a translation driving assembly arranged in the same direction as the servo telescopic assembly.

[0019] The beneficial effects of the technical solution of the present utility model are as follows: When the feeding device is actually used, at least two feeding devices are provided. Each feeding device can evenly distribute the load through a separate cylinder drive. The buffer assembly can play a buffering role when the swing arm rotates, reduce the load of the swing arm, and extend the service life. The horizontal limiting assembly is used to horizontally limit the clamping and feeding part so that it remains horizontal when in the feeding state and is in the same horizontal plane as the processing station, thereby ensuring accurate feeding of the pipe material to the processing station. Brief Description of the Drawings

[0020] Figure 1 It is the layout diagram of the loading manipulator for the laser cutting machine in the working state of the embodiment.

[0021] Figure 2 It is the structural schematic diagram of the horizontal limiting assembly.

[0022] The numbers in the figure represent:

[0023] 1, support; 2, rack; 3, driving cylinder; 4, gear; 5, swing arm; 6, buffer assembly; 7, horizontal limiting assembly; 8, servo telescopic assembly; 9, clamping jaw; 10, translation driving assembly; 11, push block; 12, vertical plate; 13, supporting block. Detailed Description of the Specific Embodiment

[0024] The present utility model will be further described in detail below with reference to specific embodiments.

[0025] Embodiment:

[0026] As Figures 1 to 2 shown, a loading manipulator for a laser cutting machine of the present utility model includes a support 1; a power mechanism disposed on the support 1; a rack 2 provided on the support 1 through a vertical slide rail and used to slide on the support 1 driven by the power mechanism, the power mechanism being a driving cylinder 3; a gear 4 rotatably disposed on the support 1 and meshed with the rack 2; a swing arm 5 connected to the gear 4 in a follow-up manner; a clamping and feeding part connected to the swing arm 5 and used to perform picking and feeding driven by the swing arm 5; a buffer assembly 6, one end of the buffer assembly 6 is connected to the swing arm 5, and the other end is connected to the support 1, the buffer assembly 6 being a nitrogen spring; a horizontal limiting assembly 7 used to horizontally limit the clamping and feeding part during feeding, the horizontal limiting assembly 7 includes a vertical plate 12 provided on the front surface of the support 1, a supporting block 13 is provided at the top of the vertical plate 12, the supporting block 13 is arranged along the width direction of the bottom surface of the clamping and feeding part, and the supporting block 13 is flush with the loading station; Figure 1The clamping and feeding part is in the initial state. The power mechanism drives the rack 2 to slide upward, and then drives the swing arm 5 to rotate counterclockwise. The swing arm 5 drives the clamping and feeding part to rotate to face the material taking station. The clamping and feeding part clamps the pipe material on the material taking station. The power mechanism drives the rack 2 downward, and then drives the swing arm 5 to drive the clamping and feeding part to reset. At this time, the lower end surface of the clamping and feeding part abuts against the upper end surface of the supporting block 13, so that the clamping and feeding part remains horizontal. At this time, the clamping and feeding part and the processing station are in the same horizontal plane. The clamping and feeding part horizontally feeds the pipe material to the processing station to ensure the feeding accuracy of the pipe material. The buffer assembly 6 plays a buffering role during the rotation of the swing arm 5, shares part of the load, and prolongs the service life of the equipment.

[0027] The clamping and feeding part includes a servo telescopic assembly 8 and a clamping jaw 9 provided at the front end of the servo telescopic assembly 8.

[0028] A push block 11 is connected to the side of the clamping jaw 9 through a translation driving assembly 10 arranged in the same direction as the servo telescopic assembly 8. When the pipe material with a smaller diameter falls into the inner side of the clamping jaw 9, the translation driving assembly 10 drives the push block 11 to push the pipe material forward for a certain distance, so that the center of the pipe material comes to the center of the clamping fingers of the clamping jaw 9.

[0029] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the creative concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A feeding robot for a laser cutting machine, characterized in that: include: Support; A power mechanism, arranged on the support; A rack, arranged on the support through a vertical slide rail, and driven by the power mechanism to slide on the support; A gear, rotatably disposed on the support and meshingly connected with the rack; A swing arm, movably connected to the gear; A clamping and feeding part, connected to the swing arm, for picking up and feeding materials through the swing arm drive; A buffer assembly, one end of which is connected to the swing arm, and the other end of which is connected to the support; A horizontal limit assembly, used to limit the horizontal position of the clamping and feeding part when feeding; When the power mechanism drives the rack to slide, the rack drives the gear to drive the swing arm to rotate, thereby driving the clamping and feeding part to pick up and feed materials.

2. A feeding robot for a laser cutting machine according to claim 1, characterized in that: The power mechanism comprises a vertically arranged driving cylinder, a top rod of which is connected to the rack.

3. The feeding robot for a laser cutting machine according to claim 1, characterized in that: The clamping and feeding part comprises a servo telescopic component and a clamping claw arranged at the front end of the servo telescopic component.

4. The feeding robot for a laser cutting machine according to claim 1, characterized in that: The horizontal limiting assembly comprises a vertical plate arranged on the front side of the support, and a supporting block is arranged on the top of the vertical plate.

5. The feeding robot for a laser cutting machine according to claim 3, characterized in that: The side surface of the clamping jaw is connected with a push block through a translation driving assembly arranged in the same direction as the servo telescopic assembly.

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