Material rack lifting device for laser cutting machine

Abstract

The utility model belongs to the technical field of auxiliary equipment of laser cutting machines, and particularly relates to a material rack lifting device for a laser cutting machine, which comprises a material carrying plate, the material carrying plate has inclination, two belts are arranged outside the material carrying plate side by side, two rotating shafts are inserted between the two belts, a servo motor is fixed at one end of one rotating shaft, and the other end of the other rotating shaft is provided with a lifting device. Arc-shaped supports are fixed to the outer surfaces of the two belts at intervals, the arc-shaped supports, close to the sides of the material carrying plate, of the two belts are open upwards, the lower edge of the material carrying plate is turned upwards, an electric push rod is fixed to the turned position, the output end of the electric push rod penetrates through the turned position of the material carrying plate, and square grooves are formed in the positions, right opposite to the belts, of the upper edge of the material carrying plate. The width of the square grooves is larger than that of the arc-shaped supports, and a baffle is fixed to the position, between the two square grooves, of the upper edge of the material carrying plate. The metal pipe is righting from two ends while being lifted, the metal pipe is prevented from being heavy at one end and light at the other end, and the declination degree after the metal pipe is centered is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of auxiliary equipment of laser cutting machines, and specifically relates to a material rack lifting device for laser cutting machines. Background Art

[0002] Metal pipes are shipped in large lengths and need to be cut into short pipes of specified lengths during actual processing. Cutting metal pipes with a cutting machine consumes more grinding wheels, so laser cutting machines are often used instead. The laser cutting machine places the metal pipe flat on a sword grid and uses a CNC system to move the laser head to cut at a specified position with a laser beam.

[0003] Several metal pipes are placed on the rack. Two clamps can be used to clamp a single pipe from both sides, which is lifted by an electric push rod and can move along a preset track. The two clamps clamp and move the single pipe until it is exposed under the laser head.

[0004] When the metal pipe on the rack is lifted or lowered, it is clamped by two curved claws to push the single pipe to the center quickly. However, the span of the metal pipe is much larger than the clamping width of the claws, and it is difficult for the two claws to clamp the center of gravity of the metal pipe, making one end of the metal pipe heavy and the other end light. In this way, the far end of the metal pipe will tilt downward after being centered. For this reason, we propose a rack lifting device for a laser cutting machine. Utility Model Content

[0005] The utility model aims to provide a material rack lifting device for a laser cutting machine, which can raise the metal pipe and straighten it from both ends at the same time, so as to prevent the metal pipe from being heavy at one end and light at the other end, and reduce the downward tilt degree of the metal pipe after being centered.

[0006] The technical solutions adopted in this utility are as follows:

[0007] A material rack lifting device for a laser cutting machine comprises a loading plate, the loading plate has an inclination, two belts are arranged side by side on the outside of the loading plate, two rotating shafts are inserted between the insides of the two belts, a servo motor is fixed at one end of one of the rotating shafts, arc-shaped supports are fixed at intervals on the outer surfaces of the two belts, and the arc-shaped supports on the two belts close to the loading plate are both opened upwards. When metal pipes are loaded, a plurality of metal pipes are stacked using an inclined loading plate, and the servo motor is started to drive a rotating shaft to drive the two belts to rotate, and the two arc-shaped supports on the two belts approach the loading plate from the bottom to the top until they hook an outer metal pipe, and the two arc-shaped supports are used to horizontally support the metal pipe from two points, and at this time, the servo motor is regulated to rotate a specified circle until the two arc-shaped supports drive the metal pipe to rise to a specified position, and the metal pipe is axially facing the feed port of the laser cutting machine, and the metal pipe is raised while being straightened from both ends to prevent one end of the metal pipe from being heavy and the other end from being light, thereby reducing the downward tilt of the metal pipe after being centered.

[0008] The lower edge of the material carrier plate is folded upward, and an electric push rod is fixed at the folded position. The output end of the electric push rod passes through the folded position of the material carrier plate. After the electric push rod is started, the output end of the electric push rod extends upward along the inclined surface of the material carrier plate to push the metal pipe close to the belt. No manual pushing is required, and the position of the metal pipe can be visually inspected until a metal pipe can be grabbed by the arc support. Then the electric push rod is stopped, or the output end of the electric push rod is controlled to shorten so as to put down the metal pipe.

[0009] A square groove is provided at the position of the upper edge of the carrier plate facing the belt, and the width of the square groove is greater than the width of the arc-shaped support. After the metal pipe on the carrier plate is pushed up, it reaches above the square groove, and then the belt drives the arc-shaped support to pass through the square groove, so that the arc-shaped support just reaches under the metal pipe, preventing the arc-shaped support and the metal pipe from staggered with each other.

[0010] A baffle is fixed at a position between the two square grooves on the upper edge of the carrier plate. After the metal pipe on the carrier plate is pushed up, the baffle is used to limit the position to prevent the metal pipe from sliding off the carrier plate.

[0011] It also includes at least two support plates, the interiors of the support plates are rotatably connected to the outside of the rotating shaft, the two support plates support the two rotating shafts, and the corresponding belts are tensioned by transmission wheels at both ends of the two rotating shafts, so that the two belts can stably support the arc support respectively.

[0012] Two guide rods are inserted between the two belts, and both guide rods pass through the support plate. Both guide rods are parallel to the rotating shaft. The two guide rods are used to vertically support the support plate, which makes it convenient for the entire lifting device to be suspended in the air. The two guide rods can also push these support plates to move laterally to change the position of the belts. After the lateral displacement, bolts can be tightened on the support plates to tighten the guide rods. This technical solution is a prior art and is not drawn in the figure. It is locked under the action of friction.

[0013] The technical effects achieved by this utility model are:

[0014] The present invention provides a practical material rack lifting device for a laser cutting machine. When metal pipes are loaded, a tilted loading plate is used to stack a number of metal pipes. The servo motor is started to drive a rotating shaft to drive two belts to rotate. Two arc-shaped supports on the two belts approach the loading plate from the bottom to the top until they hook an outer metal pipe. The two arc-shaped supports are used to horizontally support the metal pipe from two points. At this time, the servo motor is regulated to rotate a specified circle until the two arc-shaped supports drive the metal pipe to rise to a specified position. The metal pipe is axially facing the feed port of the laser cutting machine. While the metal pipe is raised, it is straightened from both ends to prevent one end of the metal pipe from being heavy and the other end from being light, thereby reducing the downward tilt of the metal pipe after it is centered. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view of a material rack lifting device for a laser cutting machine of the present invention;

[0016] Figure 2 It is a side view of the material carrier plate of the present utility model;

[0017] Figure 3 is a side view of the practical belt;

[0018] Figure 4 It is a side view of the support plate of the present invention.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Loading plate; 2. Belt; 3. Rotating shaft; 4. Servo motor; 5. Arc support; 6. Electric push rod; 7. Square slot; 8. Baffle; 9. Support plate; 10. Guide rod. DETAILED DESCRIPTION

[0021] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with the embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the present invention, and does not strictly limit the scope of protection specifically requested by the present invention.

[0022] Embodiment 1:

[0023] like Figures 1-4 As shown, a material rack lifting device for a laser cutting machine includes a material carrier plate 1, the material carrier plate 1 has an inclination, two belts 2 are arranged side by side on the outside of the material carrier plate 1, two rotating shafts 3 are inserted between the two belts 2, a servo motor 4 is fixed at one end of one of the rotating shafts 3, the servo motor 4 can choose a YEJ series three-phase asynchronous motor, the servo motor 4 signal is connected to the control panel outside the laser cutting machine, arc-shaped supports 5 are fixed on the outer surfaces of the two belts 2 at intervals, and the arc-shaped supports 5 on the side of the two belts 2 close to the material carrier plate 1 are all opened upwards. Before leaving the factory, the metal pipes need to be cut into short pipes of specified lengths, which are generally stacked on the material rack of the laser cutting machine. When loading the metal pipes, a tilted loading plate 1 is used to stack several metal pipes, and the servo motor 4 is started to drive a rotating shaft 3 to drive the two belts 2 to rotate. The two arc-shaped supports 5 on the two belts 2 approach the loading plate 1 from the bottom to the top until they hook an outer metal pipe. The two arc-shaped supports 5 are used to horizontally support the metal pipe from two points. At this time, the servo motor 4 is adjusted to rotate a specified circle until the two arc-shaped supports 5 drive the metal pipe to rise to the specified position. The metal pipe is axially facing the feed port of the laser cutting machine. While the metal pipe is raised, it is straightened from both ends to prevent the metal pipe from being heavy at one end and light at the other end, thereby reducing the downward tilt of the metal pipe after it is centered.

[0024] Among them, the material loading plate 1 often horizontally places several metal pipes with a diameter of 10 - 20 mm. After a single metal pipe is lifted to a specified position, reference can be made to a Chinese invention patent with the publication number CN117532178A, a pipe laser cutting machine. Two moving clamps are used to clamp and move the metal pipe between the laser cutting machine and the material rack lifting device.

[0025] As Figure 1 and Figure 2 shown, the lower edge of the material loading plate 1 is turned upwards, and an electric push rod 6 is fixed at the folding place. The electric push rod 6 can select an electric push cylinder of the ES100 - 500 - P20 - P - 1.5K model, with a lead of at least 500 mm. The output end of the electric push rod 6 penetrates through the folding place of the material loading plate 1. The electric push rod 6 is arranged in the middle of the lower edge of the material loading plate 1. The electric push rod 6 is signal - connected to the control panel outside the laser cutting machine. After starting the electric push rod 6, the output end of the electric push rod 6 extends upwards along the inclined plane of the material loading plate 1, pushing the metal pipe close to the belt 2. Without manual pushing, the position of the metal pipe can be visually inspected until a metal pipe can be grabbed by the arc - shaped support 5, and then the electric push rod 6 is stopped, or the output end of the electric push rod 6 is controlled to shorten in order to put down the metal pipe.

[0026] As Figure 1 , Figure 2 and Figure 3 shown, square grooves 7 are opened at the positions where the upper edge of the material loading plate 1 faces the belt 2. The widths of the square grooves 7 are all greater than the width of the arc - shaped support 5. After the metal pipe on the material loading plate 1 is pushed up and reaches above the square groove 7, then the belt 2 drives the arc - shaped support 5 to pass through the square groove 7, so that the arc - shaped support 5 just reaches directly below the metal pipe, preventing the arc - shaped support 5 and the metal pipe from being displaced from each other.

[0027] As Figure 1 and Figure 2 shown, a baffle 8 is fixed at the position between the two square grooves 7 on the upper edge of the material loading plate 1. After the metal pipe on the material loading plate 1 is pushed up, the baffle 8 is used for limiting to prevent the metal pipe from slipping off the material loading plate 1.

[0028] As Figure 1 and Figure 4 shown, it further includes at least two support plates 9. The inside of the support plates 9 is rotatably connected to the outside of the rotating shaft 3. The two support plates 9 support the two rotating shafts 3. Both ends of the two rotating shafts 3 are tensioned with the corresponding belt 2 through transmission wheels, facilitating the two belts 2 to stably support the arc - shaped support 5 respectively.

[0029] As Figure 1 and Figure 4As shown, two guide rods 10 are inserted between the two belts 2. The two guide rods 10 both penetrate the support plate 9. The two guide rods 10 are parallel to the rotating shaft 3. The two guide rods 10 are used to vertically support the support plate 9, which makes it convenient for the entire lifting device to be suspended in the air. The two guide rods 10 can also push these support plates 9 to move horizontally to change the position of the belts 2. After the lateral displacement, bolts can be tightened on the support plate 9 to tighten the guide rods 10. This technical solution is a prior art and is not drawn in the figure. It is locked under the action of friction.

[0030] The working principle of the utility model is as follows: when metal pipes are loaded, a plurality of metal pipes are stacked on an inclined loading plate 1, and a servo motor 4 is started to drive a rotating shaft 3 to drive two belts 2 to rotate. Two arc-shaped supports 5 on the two belts 2 approach the loading plate 1 from the bottom to the top until an outer metal pipe is hooked. The metal pipe is horizontally supported from two points by the two arc-shaped supports 5. At this time, the servo motor 4 is regulated to rotate a specified circle until the two arc-shaped supports 5 drive the metal pipe to rise to a specified position. The metal pipe is axially facing the feed port of the laser cutting machine. While the metal pipe is raised, it is straightened from both ends to prevent the metal pipe from being heavy at one end and light at the other end, thereby reducing the downward tilt of the metal pipe after it is centered.

[0031] Embodiment 2:

[0032] It is basically the same as the first embodiment, except that a six-axis manipulator can be used between the laser cutting machine and the material rack lifting device to transfer the metal pipe and maintain the supporting effect of the two arc-shaped supports 5 on the metal pipe, so that the metal pipe has at least two fulcrums.

[0033] A plurality of trigger switches are fixed to one side of the baffle plate 8 close to the metal pipe. Once the trigger switch is partially pressed, a signal indicating that the metal pipe is in place is sent, thus saving the operator the need for visual inspection.

[0034] The trigger switch can also be replaced by a distance sensor to monitor the distance from the metal pipe to the baffle 8 in real time and send it to the control panel.

[0035] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A material rack lifting device for a laser cutting machine, characterized in that: The invention comprises a material carrier plate (1), wherein the material carrier plate (1) has an inclination, two belts (2) are arranged side by side on the outside of the material carrier plate (1), two rotating shafts (3) are inserted between the insides of the two belts (2), a servo motor (4) is fixed at one end of one of the rotating shafts (3), arc-shaped supports (5) are fixed at intervals on the outer surfaces of the two belts (2), and the arc-shaped supports (5) on the sides of the two belts (2) close to the material carrier plate (1) are both opened upwards.

2. The material rack lifting device for a laser cutting machine according to claim 1, characterized in that: The lower edge of the material carrier plate (1) is folded upwards, and an electric push rod (6) is fixed at the folded portion, and the output end of the electric push rod (6) passes through the folded portion of the material carrier plate (1).

3. The material rack lifting device for a laser cutting machine according to claim 1, characterized in that: A square groove (7) is provided at a position on the upper edge of the carrier plate (1) facing the belt (2), and the width of the square groove (7) is greater than the width of the arc-shaped support (5).

4. The material rack lifting device for a laser cutting machine according to claim 3 is characterized in that: A baffle (8) is fixed at a position on the upper edge of the material carrying plate (1) between the two square grooves (7).

5. The material rack lifting device for a laser cutting machine according to claim 1, characterized in that: It also comprises at least two support plates (9), the interiors of the support plates (9) being rotatably connected to the outside of the rotating shaft (3).

6. The material rack lifting device for a laser cutting machine according to claim 5, characterized in that: Two guide rods (10) are inserted between the two belts (2), and both guide rods (10) penetrate the support plate (9). Both guide rods (10) are parallel to the rotating shaft (3).

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