CN111922540A - Automatic feeding device and working method of laser pipe cutting machine - Google Patents

Abstract

Automatic feeding device and working method of laser pipe cutting machine. The invention relates to the technical field of industrial processing equipment, in particular to the improvement of the feeding device of the laser pipe cutting machine. An automatic feeding device and working method of a laser pipe cutting machine are provided, including a frame, a material storage frame, at least two feeding mechanisms, at least two height limiting devices and at least two clamping mechanisms, and the frame includes two A side stand, the pipe axial position adjustment mechanism includes an end plate fixedly arranged on one side stand and a push device, and the push device is movably arranged on the other side stand of the frame. The invention can provide the pipe material supply with accurate position and quantity for the laser pipe cutting machine, and the position of the pipe material does not need to be adjusted again before subsequent pipe cutting processing, so that the processing efficiency of the laser pipe cutting machine can be improved.

Description

Automatic feeding device and working method of laser pipe cutting machine

technical field

The invention relates to the technical field of industrial processing equipment, in particular to the improvement of a feeding device of a laser pipe cutting machine.

Background technique

Laser pipe cutting machine is a kind of efficient pipe cutting processing equipment in the existing equipment. However, in order to further improve the processing efficiency of laser pipe cutting machine, users often use automatic feeding device for laser pipe cutting machine. Time to achieve the purpose of improving efficiency.

Publication number in the prior art: CN110900014A; Name: A patent document of a fully automatic feeding laser pipe cutting machine, which discloses a fully automatic feeding laser pipe cutting machine, the case is to solve how to make the laser pipe cutting machine To achieve the problem of automatic feeding, the proposed technical solutions include: support frame, discharge frame, feeding belt...etc. Objectively speaking, the technical solution proposed in this comparative document can indeed realize the automatic feeding of pipes for the laser pipe cutting machine. However, in the process of transferring the pipe material from the chain drive feeding mechanism 5 → the cylinder one 6 → the clamping mechanism 14 , the adjustment of the pipe material position accuracy cannot be realized. In the actual operation process, factors such as the speed uniformity of the transmission device and the inertia of the pipe running often lead to inconsistencies in the position of the pipe. In this way, the position where the gripper of the gripping mechanism grips the pipe will be inconsistent, which makes it difficult to ensure the machining accuracy during subsequent laser cutting.

In addition, under the condition of continuous feeding of pipes, when the pipes on the chain drive feeding mechanism are closely arranged, how to ensure that the lifting mechanism at the outlet can lift the pipes according to the design requirements is also a technical problem that needs to be solved.

SUMMARY OF THE INVENTION

In view of the above problems, the present invention provides an automatic feeding device and a working method for a laser pipe cutting machine.

The first technical problem to be solved is to ensure the positional accuracy of the X and Y directions of the clamped pipe;

The second technical problem to be solved is that the pipes on the conveyor belt can be lifted according to the requirements of the design quantity.

The technical scheme of the present invention is: the automatic feeding device of the laser pipe cutting machine includes a frame, a material storage frame, at least two feeding mechanisms, at least two height limiting devices and at least two clamping mechanisms, and the frame includes two The side stand is characterized in that a finger blocking device is arranged between the adjacent feeding mechanisms, and a lifting mechanism is also provided on the side of the finger blocking device. There is a pipe axial position adjustment mechanism between them;

The lifting mechanism includes an L-shaped supporting platform, a sliding seat, a lifting guide rail and a linear drive mechanism, the L-shaped supporting platform is arranged on the top surface of the sliding seat, and the L-shaped supporting platform includes a platform and a vertical plate, The height of the platform is lower than the upper surface of the feeding mechanism at the initial bottom limit position, and the vertical plate is arranged on the side of the platform facing the discharge port; the sliding seat is connected to the lifting guide rail through a linear drive mechanism , the lifting guide rail is connected to the frame;

The pipe axial position adjustment mechanism includes an end plate fixedly arranged on one side of the vertical frame and a pushing device, and the pushing device is movably arranged on the other side vertical frame of the frame.

The push device includes a push baffle, a push bracket and a bracket movable seat, the push baffle is vertically connected to the top end of the push bracket and corresponds to the axial position of the pipe; the push bracket is connected to the bracket movable seat; The bracket movable seat is connected to the frame through the movable seat guide rail, a chain is provided on the surface of the frame adjacent to the bracket movable seat, and the bracket movable seat is connected to the chain through a chain connecting block.

The pushing device includes a pushing baffle and a pushing cylinder, the pushing baffle is connected to the piston rod of the pushing cylinder; the pushing cylinder is horizontally connected to the other side of the frame, and the pushing The baffle corresponds to the axial position of the pipe.

The end plate includes a position adjustment cylinder and an end plate piece, and the end plate piece is connected to the piston rod of the position adjustment cylinder.

The platform of the L-shaped support platform is a horizontal roller column, and the vertical plate is an upright roller column.

The clamping mechanism includes an upper clamping jaw, a lower clamping jaw, a clamping seat and an X-direction motion mechanism, the clamping seat has a Z-direction plane, and the upper clamping jaw and the lower clamping jaw are movably connected to the clamping seat Above, the clamping base is connected to the X-direction movement mechanism, and the X-direction movement mechanism is connected to the frame.

The finger-stopping device includes a finger-stopping rod and a finger-blocking motion seat, the finger-blocking rod is arranged along the Z direction and is fixedly connected to the finger-blocking motion seat, and the finger-blocking motion seat is connected to the finger-blocking motion seat through a block guide rail. frame.

A support plate is arranged on the finger moving seat, and the top surface of the support plate has the same height as the upper surface of the feeding mechanism.

The top of the frame is provided with a Y-direction beam, and at least two of the height-limiting devices are hung at the lower part of the beam, and the height-limiting devices are connected to the beam through a height adjustment connecting mechanism.

A working method of an automatic feeding device for a laser pipe cutting machine, comprising the following steps:

1) The pipe is pulled by the wire rope from the storage rack and sent to the feeding mechanism.

2) At the entrance of the feeding mechanism, it is constrained by the height limiting device to prevent it from entering the feeding mechanism in a stacked form.

3) The frontmost 1 or N pipes are limited in the X direction by the finger blocking device.

4) The lifting mechanism will lift 1 or N pipes that are limited,

5) The clamping mechanism moves toward the discharge direction of the pipe in the open state, and the Z plane of the clamping mechanism pushes 1 or N pipes until 1 or N pipes contact the platform and vertical of the L-shaped support platform. After the board is reset, the X-direction position positioning is completed,

6) The push device starts, pushes the tail end of the pipe until the head end of the pipe contacts the end plate, and completes the Y-direction position positioning.

7), the clamping mechanism moves toward the pipe material discharge direction again, clamps the pipe material, and continues to send it out in the pipe material discharge direction.

8), reach the set position, complete.

The present invention can make the pipe move in an orderly direction toward the conveying direction during the working process, and realize the position of the pipe in the X and Y directions through the X-direction positioning mechanism (finger-retaining device 7 ) and the Y-direction positioning mechanism (push device 5 , end plate 8 ). The precise definition of , ensures that the pipe delivered by the clamping mechanism has high positional accuracy. In addition, in order to improve the transfer efficiency, the position of the finger-stop device in this case is adjustable, so that the lifting mechanism can lift different numbers of pipes according to the setting.

The invention can provide the pipe material supply with accurate position and quantity for the laser pipe cutting machine, and the position of the pipe material does not need to be adjusted again before subsequent pipe cutting processing, so that the processing efficiency of the laser pipe cutting machine can be improved.

Description of drawings

Fig. 1 is the three-dimensional schematic diagram of the present invention,

Fig. 2 is the structural representation of the present invention,

Fig. 3 is A-A in Fig. 2 sectional view,

Figure 4 is a sectional view taken along the line B-B in Figure 2,

Figure 5 is a partial view of the direction C in Figure 2,

Fig. 6 is a partial enlarged view of part D in Fig. 2,

Fig. 7 is a partial enlarged view of part E in Fig. 2,

Fig. 8 is a left side view of Fig. 7,

Fig. 9 is the partial structure schematic diagram of the second embodiment of the push device in the present invention,

Fig. 10 is the structural representation of the second embodiment of the push device in the present invention,

Fig. 11 is a perspective view of the second embodiment of the pushing device in the present invention,

Fig. 12 is a partial enlarged view of part F in Fig. 2,

Fig. 13 is the working principle diagram 1 of the quantitative feeding pipe of the present invention,

Fig. 14 is the working principle diagram 2 of the quantitative feeding pipe of the present invention,

Fig. 15 is the working principle diagram 3 of the quantitative feeding pipe of the present invention,

Fig. 16 is the working principle diagram 4 of the quantitative feeding pipe of the present invention,

Fig. 17 is the structural schematic diagram of the optimized embodiment of the L-shaped support table in the present invention,

FIG. 18 is a schematic structural diagram of an optimized embodiment of the finger-stopping device of the present invention.

In Figure 1, the X, Y, Z three-dimensional reference coordinate system is established,

In Figure 2, the Y and Z reference coordinate systems are established.

In the figure 1 is the frame, 2 is the material storage rack, 21 is the wire rope, 3 is the feeding mechanism, 4 is the height limiting device,

5 is the pushing device, 51 is the pushing baffle, 52 is the pushing bracket, 53 is the movable seat of the bracket, 54 is the movable seat guide rail, 55 is the chain connecting block, 56 is the chain, 501 is the pushing cylinder,

6 is a lifting mechanism, 61 is a sliding seat, 62 is an L-shaped support table, 63 is a rack-and-pinion transmission pair, 64 is a lifting guide rail, and 65 is a roller column.

7 is a finger-stop device, 71 is a finger-stop lever, 72 is a finger-stop motion seat, 73 is a stop guide rail, 74 is an elastic protective cover, 75 is a support plate,

8 is the end plate, 81 is the end plate piece, 82 is the position adjustment cylinder,

9 is a clamping mechanism, 91 is a Z-direction plane, and 10 is a pipe.

Detailed ways

The present invention is further described below in conjunction with accompanying drawings 1-18. The present invention includes a frame 1, a material storage frame 2, at least two feeding mechanisms 3, at least two height limiting devices 4 and at least two clamping mechanisms 9. The frame 1 includes two sides of the vertical frame, between the adjacent feeding mechanisms 3 is provided with a finger-stopping device 7, and a lifting mechanism 6 is also provided on the side of the finger-stopping device 7, and between the two sides of the frame 1. There is a pipe axial position adjustment mechanism, and the feeding mechanism 3 is that the conveyor belt rotates in the platform of the feeding mechanism;

The lifting mechanism 6 includes an L-shaped supporting platform 62, a sliding seat 61, a lifting guide rail 64 and a linear drive mechanism. The linear driving mechanism adopts a rack and pinion transmission pair 63. The L-shaped supporting platform 62 is arranged on the top surface of the sliding seat 61. The shape support table 62 includes a platform and a vertical plate, the height of the platform is lower than the upper surface of the feeding mechanism 3 at the initial bottom limit position, and the vertical plate is arranged on the side of the platform facing the discharge port; the sliding seat 61 is driven by a rack and pinion type The auxiliary 63 is connected to the lifting guide rail 64, and the lifting guide rail 64 is connected to the frame 1;

The axial position adjustment mechanism of the pipe material includes an end plate 8 fixedly arranged on one side of the vertical frame and a pushing device 5 , and the pushing device 5 is movably arranged on the other side vertical frame of the frame 1 .

As shown in Figs. 7-8, the first embodiment of the push device 5 includes a push baffle 51, a push bracket 52 and a bracket movable seat 53. The push baffle 51 is vertically connected to the top of the push bracket 52 and corresponds to the axis of the pipe 10. Push the bracket 52 to connect the bracket movable seat 53; the bracket movable seat 53 is connected to the frame 1 through the movable seat guide rail 54, the frame 1 is provided with a chain 56 on the adjacent surface of the bracket movable seat 53, and the bracket movable seat 53 passes through the chain. The connecting block 55 is connected to the chain 56, the chain 56 is parallel to the axial direction of the pipe 10, and the push baffle 51 is driven to reciprocate in the Y direction, and then the Y direction of the pipe 10 can be positioned. For the pipe 10, the positioning of the short pipe 10 can be completed by using the longer stroke of this embodiment.

As shown in Figures 9-11, the second embodiment of the push device 5 includes a push baffle 51 and a push cylinder 501, the push baffle 51 is connected to the piston rod of the push cylinder 501; the push cylinder 501 is horizontally connected to the frame 1 On the other side of the vertical frame, the push baffle 51 corresponds to the axial position of the pipe 10, the push cylinder 501 is parallel to the axial direction of the pipe 10, and the push baffle 51 is driven to reciprocate in the Y direction, so that the Y direction of the pipe 10 can be adjusted. For positioning, the second embodiment is suitable for the pipe material 10 with a long length, the structure is simple, the control is convenient, and the positioning of the pipe material 10 can be completed.

The end plate 8 includes a position adjustment cylinder 82 and an end plate piece 81. The end plate piece 81 is connected to the piston rod of the position adjustment cylinder 82, and has the ability to use the Y direction as a positioning reference to assist the positioning of the pipe 10.

The platform of the L-shaped support platform 62 is a horizontal roller column, and the vertical plate is an upright roller column, which facilitates the formation of rolling friction during the axial positioning of the pipe 10, reduces scratches caused by displacement, and protects the surface of the pipe 10.

The clamping mechanism 9 includes an upper clamping jaw, a lower clamping jaw, a clamping seat and an X-direction motion mechanism, the clamping base has a Z-direction plane 91, the upper clamping jaw and the lower clamping jaw are movably connected to the clamping base, and the clamping base is connected X-direction kinematic mechanism, X-direction kinematic mechanism is connected to the frame. The upper clamping jaw, the lower clamping jaw, the clamping seat and the X-direction movement mechanism are not marked in the drawings, these parts and mechanisms belong to the technology well known to those skilled in the art, and will not be repeated here. However, when the clamping mechanism 9 is in the open and closed state, the exposed Z-direction plane 91 of the clamping seat pushes the pipe material 10 in the X direction until the pipe material 10 contacts the platform and vertical plate of the L-shaped support table 62, and the pipe material 10 is completely Positioning in the X direction.

The finger-blocking device 7 includes a finger-blocking rod 71 and a finger-blocking moving seat 72 , the finger-blocking rod 71 is arranged along the Z direction and is fixedly connected to the finger-blocking motion seat 72 , and the finger-blocking motion seat 72 is connected to the frame 1 through the blocking guide rail 73 . , the finger-stopping device 7 can move back and forth in the X direction.

There is a support plate 75 on the finger movement seat 72. The top surface of the support plate 75 is flat with the upper surface of the feeding mechanism 3. When the finger blocking device 7 moves in the direction of the feeding mechanism 3, it can push the lower bottom surface of the special-shaped pipe 10. , to improve the flatness of the special-shaped pipe 10 , which is beneficial to the subsequent extraction work of the lifting mechanism 6 .

The top of the frame 1 is provided with a Y-direction beam, at least two height-limiting devices 4 are hung at the lower part of the beam, and the height-limiting devices 4 are connected to the beam through a height adjustment connecting mechanism. The distance between the lower edge of the height limiting device 4 and the upper surface of the feeding mechanism 3 is slightly larger than an integer multiple of the diameter/height of the pipe 10, which can ensure that the pipe 10 at the feeding end is fed according to the design height requirements.

A working method of an automatic feeding device for a laser pipe cutting machine, comprising the following steps:

1) The pipe 10 is pulled by the wire rope 21 from the storage rack 2, and sent to the feeding mechanism 3,

2) At the entrance of the feeding mechanism 3, it is restricted by the height limiting device 4 to prevent it from entering the feeding mechanism 3 in a stacked form.

3) The frontmost 1 or N pipes 10 are limited in the X direction by the finger blocking device 7,

4) The lifting mechanism 6 lifts the limited 1 or N pipes 10,

5) The clamping mechanism 9 moves toward the pipe discharging direction in the open state, and the Z-direction plane 91 of the clamping mechanism 9 pushes 1 or N pipes 10 until 1 or N pipes 10 contact the L-shaped support After the platform and vertical plate of stage 62 are reset, the X-direction position positioning is completed.

6), the push device 5 is started, and the tail end of the pipe 10 is pushed until the head end of the pipe 10 contacts the end plate 8, and the Y-direction position positioning is completed.

7) The clamping mechanism 9 moves toward the pipe material discharge direction again, clamps the pipe material 10, and continues to send it out in the pipe material discharge direction.

8), reach the set position, complete.

The finger blocking device 7 in the present invention can move back and forth in the X direction, the lifting mechanism 6 can move up and down in the Z direction, and the pushing device 5 can move left and right in the Y direction. Through the kinematic cooperation between the finger-stopping device 7 and the lifting mechanism 6, the L-shaped support platform 62 in the lifting mechanism 6 protrudes from the finger-stopping rod 71 in the X direction can accommodate the required number of pipes 10. The upward movement in the Z direction enables the lifting mechanism 6 to extract the number of pipes 10 required by the design. Then, a plurality of clamping mechanisms 9 are used to move in the X direction to push the pipe material 10 to the root of the L-shaped support table 62 to realize the positioning of the pipe material 10 in the X direction. Positioning in the Y direction. The invention can provide pipes with accurate positions and quantities for the laser pipe cutting machine, and the laser pipe cutting machine does not need to adjust the position of the pipes again before subsequent pipe cutting processing, so that the processing efficiency of the laser pipe cutting machine can be improved.

The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and modifications to some of the technical features according to the disclosed technical contents without creative work. Modifications, replacements and modifications are all within the protection scope of the present invention.

Claims (10)

1. The automatic feeding device of the laser pipe cutting machine includes a frame, a material storage frame, at least two feeding mechanisms, at least two height-limiting devices and at least two clamping mechanisms. The frame includes vertical frames on both sides. It is characterized in that a finger-stopping device is arranged between the adjacent feeding mechanisms, a lifting mechanism is also arranged on the side of the finger-stopping device, and a pipe shaft is arranged between the two sides of the frame. To position adjustment mechanism; The lifting mechanism includes an L-shaped supporting platform, a sliding seat, a lifting guide rail and a linear drive mechanism, the L-shaped supporting platform is arranged on the top surface of the sliding seat, and the L-shaped supporting platform includes a platform and a vertical plate, The height of the platform is lower than the upper surface of the feeding mechanism at the initial bottom limit position, and the vertical plate is arranged on the side of the platform facing the discharge port; the sliding seat is connected to the lifting guide rail through a linear drive mechanism , the lifting guide rail is connected to the frame; The pipe axial position adjustment mechanism includes an end plate fixedly arranged on one side of the vertical frame and a pushing device, and the pushing device is movably arranged on the other side vertical frame of the frame. 2. The automatic feeding device for a laser pipe cutting machine according to claim 1, wherein the pushing device comprises a pushing baffle, a pushing bracket and a bracket movable seat, and the pushing baffle is vertically connected to the pushing bracket The top end of the bracket corresponds to the axial position of the pipe; the push bracket is connected to the bracket movable seat; the bracket movable seat is connected to the frame through the movable seat guide rail, and the surface of the frame adjacent to the bracket movable seat A chain is provided, and the movable seat of the bracket is connected to the chain through a chain connecting block. 3. The automatic feeding device for a laser pipe cutting machine according to claim 1, wherein the pushing device comprises a pushing baffle and a pushing cylinder, and the pushing baffle is connected to a piston rod of the pushing cylinder; The pushing cylinder is horizontally connected to the vertical frame on the other side of the frame, and the pushing baffle corresponds to the axial position of the pipe. 4. The automatic feeding device for a laser pipe cutting machine according to claim 1, wherein the end plate comprises a position adjustment cylinder and an end plate piece, and the end plate piece is connected to the piston rod of the position adjustment cylinder . 5 . The automatic feeding device for a laser pipe cutting machine according to claim 1 , wherein the platform of the L-shaped support platform is a horizontal roller column, and the vertical plate is a vertical roller column. 6 . 6 . The automatic feeding device for a laser pipe cutting machine according to claim 1 , wherein the clamping mechanism comprises an upper clamping claw, a lower clamping claw, a clamping seat and an X-direction motion mechanism, and the clamping seat has a 6. 6 . On the Z-direction plane, the upper clamping jaw and the lower clamping jaw are movably connected to the clamping base, the clamping base is connected to the X-direction motion mechanism, and the X-direction motion mechanism is connected to the frame. 7 . The automatic feeding device for a laser pipe cutting machine according to claim 1 , wherein the finger-stopping device comprises a finger-stopping lever and a finger-stopping motion seat, and the finger-stopping lever is arranged along the Z direction and is fixedly connected to the 7. 8 . On the finger-blocking motion seat, the finger-blocking motion seat is connected to the frame through a block guide rail. 8 . The automatic feeding device for a laser pipe cutting machine according to claim 7 , wherein a support plate is provided on the finger moving seat, and the top surface of the support plate is the same height as the upper surface of the feeding mechanism. 9 . . 9 . The automatic feeding device for a laser pipe cutting machine according to claim 1 , wherein the top of the frame is provided with a Y-direction beam, and at least two of the height-limiting devices are hung on the lower part of the beam. 10 . , the height limiting device is connected with the beam through a height adjustment connecting mechanism. 10. A working method of an automatic feeding device of a laser pipe cutting machine, characterized in that it comprises the following steps: 1) The pipe is pulled by the wire rope from the storage rack and sent to the feeding mechanism. 2) At the entrance of the feeding mechanism, it is constrained by the height limiting device to prevent it from entering the feeding mechanism in a stacked form. 3) The frontmost 1 or N pipes are limited in the X direction by the finger blocking device. 4) The lifting mechanism will lift 1 or N pipes that are limited, 5) The clamping mechanism moves toward the discharge direction of the pipe in the open state, and the Z plane of the clamping mechanism pushes 1 or N pipes until 1 or N pipes contact the platform and vertical of the L-shaped support platform. After the board is reset, the X-direction position positioning is completed, 6) The push device starts, pushes the tail end of the pipe until the head end of the pipe contacts the end plate, and completes the Y-direction position positioning. 7), the clamping mechanism moves toward the pipe material discharge direction again, clamps the pipe material, and continues to send it out in the pipe material discharge direction. 8), reach the set position, complete.

Images