Laser cutting equipment for square tube production

Abstract

The utility model relates to the technical field of cutting equipment, in particular to laser cutting equipment for square tube production. The cutting equipment is provided with the pipe bin used for stacking the square pipes, the square pipes in the lowest row of the pipe bin are pushed into the pipe pushing channel through the first pipe pushing assembly, in the pipe pushing process, the square pipes at the foremost end of the pipe pushing channel are extruded out and moved to the supporting block, and the second pipe pushing assembly pushes the supporting block to drive the square pipes to move to the position above a machine tool. And a laser chuck is arranged on the machine tool, the laser chuck is used for clamping and fixing the end, close to the laser chuck, of the square pipe, the laser chuck drives the square pipe to move towards the cutting device, and therefore the square pipe is cut.

Description

Technical Field

[0001] The present application relates to the technical field of cutting equipment, and in particular to a laser cutting equipment for producing square tubes. Background Art

[0002] Compared with traditional cutting processes, laser tube cutting has good flexibility and does not require mold opening, which greatly saves new product development time. At the same time, it has fast cutting speed and high precision. The tube laser cutting machine can realize the precision cutting of opening, cutting, intersection lines and various special-shaped complex graphics that are difficult to achieve by conventional methods. It can also better meet the increasingly high cutting process requirements. At present, the most common machine used for tube processing is the laser tube cutting machine.

[0003] In order to improve the efficiency of pipe cutting machines, many pipe cutting machines have begun to use automatic loading devices to load materials for the pipe cutting machines. Currently, most automatic loading devices are designed for round pipes, controlling the round pipes to automatically roll onto the cutting machine. For square pipes, square pipes do not have the function of rolling. If a robot is used to grab and load the materials, not only is the mechanical cost high, but it also needs to solve problems such as pipe identification, path control, and direction correction, which greatly reduces construction efficiency. Utility Model Content

[0004] The utility model aims to solve the above problems, thereby providing a cutting device that is convenient for fully automatic cutting of square tubes.

[0005] The utility model solves the above problems by adopting the following technical solutions:

[0006] A square tube production laser cutting equipment includes a laser cutting machine and an automatic loading device. The automatic loading device is arranged on one side of the laser cutting machine. The laser cutting machine includes a machine tool, a cutting device and a laser chuck. The cutting device is fixed on one end of the machine tool, and the laser chuck is slidably arranged on the machine tool. The automatic loading device includes a fixed bracket, a first push tube assembly and a second push tube assembly. The fixed bracket is provided with a push tube channel and a tube warehouse. The tube warehouse is used to stack square tubes. The lower front end of the tube warehouse is connected with the push tube channel. The front end of the first push tube assembly abuts against the square tubes in the lower row of the tube warehouse. The first push tube assembly is used to push the square tubes in the lower row of the tube warehouse into the push tube channel; the second push tube assembly is arranged at the bottom end of the fixed bracket, and the front end of the second push tube assembly is provided with a support block. The top of the support block is connected to the front end of the push tube channel. The second push tube assembly is used to drive the square tube to move above the machine tool through the support block; the laser chuck is used to drive the square tube to move toward the cutting device.

[0007] Compared with the prior art, the present invention adopting the above technical solution has the following beneficial effects:

[0008] The cutting equipment of the present invention is provided with a tube warehouse for stacking square tubes, and the square tubes in the bottom row of the tube warehouse are pushed into the tube pushing channel through the first tube pushing assembly. During the tube pushing process, the square tubes at the front end of the tube pushing channel are squeezed out and moved onto the supporting block. The second tube pushing assembly pushes the supporting block to drive the square tubes to move above the machine tool, thereby realizing automatic loading. A laser chuck is provided on the machine tool, and the laser chuck clamps the square tube close to the end of the laser chuck, and drives the square tube to move toward the cutting device through the laser chuck, thereby cutting the square tube.

[0009] As a preferred embodiment, a further technical solution of the present invention is:

[0010] The height of the tube pushing channel is greater than or equal to the height of a single square tube stacked in the tube bin, the length of the tube bin is greater than the length of a single square tube, and the width of the tube bin is an integer multiple of the width of a single square tube. This structure allows the square tubes to be neatly arranged in horizontal and vertical rows in the tube bin, allowing the square tubes in the tube pushing channel to move parallel to each other, thus preventing the square tubes from rotating during the pushing process and affecting the pushing efficiency.

[0011] The first tube pushing assembly is mounted on a fixed bracket at the rear of the tube bin and includes a first electric push rod and an L-shaped push plate. The rear end of the first electric push rod is fixed to the fixed bracket, and the output shaft of the first electric push rod is vertically fixed to the vertical plate of the L-shaped push plate. The horizontal plate of the L-shaped push plate is located above the first electric push rod. By providing the L-shaped push plate, when the first electric push rod drives the vertical plate to push the square tubes into the tube pushing channel, the horizontal plate of the L-shaped push plate supports the second-to-last row of square tubes in the tube bin, preventing the square tubes from squeezing the first electric push rod and making the tube pushing process smoother. When the first electric push rod drives the L-shaped push plate back, the square tubes in each row of the tube bin fall down in sequence to await the next tube pushing.

[0012] At least two second push tube assemblies are provided, and each second push tube assembly is equidistantly arranged at the bottom of the fixed bracket. Through the above structure, the stability of the second push tube assembly in moving the square tube is increased.

[0013] The second tube-pushing assembly includes a second electric push rod, the front end of whose output shaft is fixed to the lower end of a support block. A limit plate is provided on the front of the top of the support block. When the square tube is pushed from the tube-pushing channel onto the support block, the front of the square tube abuts against the limit plate. The second electric push rod drives the support block to move, thereby moving the square tube above the machine tool, achieving stable loading.

[0014] The second push tube assembly also includes a U-shaped guide block, the top of which is fixed to the bottom of the fixed bracket. A guide channel is formed between the U-shaped guide block and the bottom of the fixed bracket. One end of the U-shaped guide block is fixed to the second electric push rod, and the output shaft of the second electric push rod is disposed in the guide channel. The U-shaped guide block serves as an auxiliary guide, assisting the extension and retraction of the output shaft of the second electric push rod, thereby increasing the stability of the front support block.

[0015] The machine tool is provided with a lifting slot, within which is a lifting platform. A supporting member is secured to the lifting platform. When the second push-tube assembly drives the support block to the top of the machine tool, the square tube on the support block is positioned directly above the supporting member. The supporting member is used to lift the square tube on the support block to the corresponding level of the laser chuck. The provision of a lifting supporting member facilitates lifting the square tube on the support block to the level at which the laser chuck is secured. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of the embodiment of the present application when the square tube is not pushed out;

[0017] Figure 2 This is a schematic diagram of the structure of the embodiment of the present application in which the square tube is pushed above the machine tool;

[0018] Figure 3 This is a schematic structural diagram of the automatic feeding device according to an embodiment of the present application;

[0019] Figure 4 This is a side view of the automatic loading device according to an embodiment of the present application;

[0020] Figure 5 This is a partial structural exploded view of the automatic loading device according to an embodiment of the present application;

[0021] Figure 6 This is a bottom view of the automatic loading device of an embodiment of the present application.

[0022] In the figure: 1. Automatic loading device; 11. Tube magazine; 12. Inverted T-shaped shell; 121. Sliding groove; 13. First electric push rod; 131. L-shaped push plate; 132. Auxiliary plate; 14. Fixed plate; 15. Fixed rod; 16. Second electric push rod; 17. Support block; 171. Limit plate; 18. Tube pushing channel; 19. U-shaped guide block; 2. Machine tool; 21. Laser chuck; 22. Lifting groove; 23. Cutting device; 24. Lifting platform; 25. Supporting member; 3. Square tube. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0024] Reference Figure 1-6, the embodiment of the present application discloses a laser cutting equipment for producing square tubes 3, including a laser cutting machine and an automatic loading device 1, the automatic loading device 1 is arranged on one side of the laser cutting machine, the laser cutting machine includes a machine tool 2, a cutting device 23 and a laser chuck 21, the automatic loading device 1 is arranged on one side of the machine tool 2, the cutting device 23 is fixed at one end of the machine tool 2, the laser chuck 21 is slidably arranged on the machine tool 2, the automatic loading device 1 includes a fixed bracket, a first push tube assembly and a second push tube assembly, the fixed bracket includes four fixed rods 15 and a fixed plate 14 fixed on the top of the four fixed rods 15, the horizontal height of the fixed plate 14 is set between the top surface of the machine tool 2 and the laser chuck 21, the fixed plate 14 is provided with a push tube channel 18 and a tube magazine 11, the length direction of the tube magazine 11 is aligned with the length of the machine tool 2 The length direction is parallel, and the tube warehouse 11 is used to stack the square tubes 3. The length of the tube warehouse 11 is greater than the length of a single square tube 3, and the width of the tube warehouse 11 is an integer multiple of the width of a single square tube 3, so that the square tubes 3 in the tube warehouse 11 are neatly stacked in horizontal and vertical rows. The lower front end of the tube warehouse 11 is connected to the rear end of the tube pushing channel 18, and the front end of the first push tube assembly is abutted against the square tubes 3 in the lower row of the tube warehouse 11. The first push tube assembly is used to push the square tubes 3 in the lower row of the tube warehouse 11 into the push tube channel 18; the second push tube assembly is arranged at the bottom end of the fixed plate 14, and a support block 17 is provided at the front end of the second push tube assembly. The top of the support block 17 is docked with the front end of the push tube channel 18, and the second push tube assembly is used to drive the square tube 3 to move to the top of the machine tool 2 through the support block 17; the laser chuck 21 is used to drive the square tube 3 to move toward the cutting device 23.

[0025] In this embodiment, the height of the tube pushing passage 18 is greater than or equal to the height of a single square tube 3 stacked in the tube bin 11. This structure allows the square tubes 3 to be neatly arranged in horizontal and vertical rows in the tube bin 11, and allows the square tubes 3 in the tube pushing passage 18 to move parallel to each other, thus preventing the square tubes 3 from rotating during the pushing process and affecting the pushing efficiency.

[0026] In this embodiment, an inverted T-shaped shell 12 is provided on the fixed plate 14, and the interior of the shell is a cavity. The vertical cavity of the inverted T-shaped shell 12 is the tube warehouse 11, and the front horizontal cavity and the rear horizontal cavity of the inverted T-shaped shell 12 are equal in height. The front horizontal cavity of the inverted T-shaped shell 12 is a tube pushing channel 18. The height of the tube pushing channel 18 is greater than or equal to the height of a single square tube 3 stacked in the tube warehouse 11. The maximum height of the tube pushing channel 18 is not greater than the diagonal length of a single square tube 3 stacked in the tube warehouse 11, so that the square tubes 3 in the tube pushing channel 18 can move in parallel, avoiding the rotation of the square tubes 3 during the tube pushing process and affecting the tube pushing efficiency; the first tube pushing assembly is arranged in the rear end horizontal cavity of the inverted T-shaped shell 12; specifically, the first tube pushing assembly includes a first electric push rod 13 and an L-shaped push plate 131, and the rear end of the first electric push rod 13 is fixed The L-shaped push plate 131 is fixed on the rear side wall of the horizontal cavity at the rear end of the inverted T-shaped shell 12, and the front end of the output shaft of the first electric push rod 13 is vertically fixed to the vertical plate of the L-shaped push plate 131, and the horizontal plate of the L-shaped push plate 131 is located above the first electric push rod 13. Preferably, the height of the vertical plate of the L-shaped push plate 131 is less than or equal to the height of a single square tube 3 in the tube warehouse 11, and the width of the horizontal plate of the L-shaped push plate 131 is greater than the width of the tube warehouse 11. When the square tube 3 is pushed into the tube pushing channel 18 through the front top vertical plate of the output shaft of the first electric push rod 13, the horizontal plate of the L-shaped push plate 131 supports the penultimate row of square tubes 3 in the tube warehouse 11 to prevent the square tubes 3 from squeezing the first electric push rod 13. At the same time, it can make the tube pushing process smoother. When the first electric push rod 13 drives the L-shaped push plate 131 to move back, the square tubes 3 in the tube warehouse 11 from front to back fall down in turn to wait for the next tube pushing.

[0027] In this embodiment, auxiliary plates 132 are protruding and fixed at both ends of the front side of the horizontal plate of the L-shaped push plate 131. Horizontal sliding grooves 121 are opened at the bottom of both sides of the inverted T-shaped shell 12. The auxiliary plates 132 at both ends move in the sliding grooves 121. When the L-shaped push plate 131 moves under the drive of the first electric push rod 13, the auxiliary plates 132 move in the sliding grooves 121, thereby increasing the stability of the two ends of the L-shaped push plate 131 during movement.

[0028] In this embodiment, three of each of the first and second push tube assemblies are provided, with the first push tube assemblies equidistantly arranged in the horizontal cavity at the rear end of the inverted T-shaped housing 12, and the second push tube assemblies equidistantly arranged at the bottom of the fixed plate 14. This structure increases the stability of the second push tube assemblies in moving the square tube 3.

[0029] In this embodiment, the second push tube assembly includes a second electric push rod 16 and a U-shaped guide block 19, the U-shaped guide block 19 is fixed to the front end bottom surface of the fixed plate 14, the housing of the second electric push rod 16 is fixed to the bottom surface of the fixed plate 14 behind the U-shaped guide block 19, and the rear end of the U-shaped guide block 19 is fixedly connected to the front end of the housing of the second electric push rod 16, and a guide channel is formed between the U-shaped guide block 19 and the bottom of the fixed plate 14, the output shaft of the second electric push rod 16 is passed through the guide channel, and the output shaft of the second electric push rod 16 is fixed to the front end of the housing of the second electric push rod 16. The front end is fixed to the lower end of the support block 17, and a limit plate 171 is provided on the front side of the top of the support block 17. When the square tube 3 is pushed onto the support block 17 from the tube pushing channel 18, the front side of the square tube 3 abuts against the limit plate 171, so that the square tube 3 can be stably placed on the support block 17; the U-shaped guide block 19 plays an auxiliary guiding role, assisting the output shaft of the second electric push rod 16 to extend and retract, so as to increase the stability of the support block 17 when it moves, and the support block 17 is driven to move by the second electric push rod 16, thereby driving the square tube 3 to move above the machine tool 2 to achieve stable loading.

[0030] In this embodiment, the machine tool 2 is provided with two lifting slots 22, each of which is provided with a lifting platform 24. A supporting member 25 is fixed to the lifting platform 24. Preferably, a U-shaped bracket is provided on the top of the supporting member 25, and the length direction of the U-shaped bracket is parallel to the length direction of the machine tool 2. When the second push tube assembly drives the support block 17 to move above the machine tool 2, the square tube 3 on the support block 17 is located directly above the U-shaped bracket of the supporting member 25. The maximum lifting height of the lifting platform 24 is set to the height of the laser chuck 21. The supporting member 25 is used to lift the square tube 3 on the support block 17 to the horizontal height corresponding to the laser chuck 21. The provision of the lifting supporting member 25 facilitates lifting the square tube 3 on the support block 17 to the clamping height of the laser chuck 21.

[0031] When the cutting equipment of this embodiment is used, the square tubes 3 are first placed in the tube warehouse 11, and the first tube pushing assembly is first controlled to push the square tubes 3 in the bottom row into the tube pushing channel 18 until the front end of the square tube 3 in the tube pushing channel 18 is flush with the front end of the tube pushing channel 18. The second tube pushing assembly is controlled to drive the support block 17 to move to the front of the tube pushing channel 18, ready to receive the square tube 3. Then, the first tube pushing assembly is controlled to output a distance of the width of the square tube 3 forward, and the front end of the square tube 3 is ejected and moved onto the support block 17. The second tube pushing assembly is controlled to output forward to drive the support block 17 to move onto the machine tool 2. At this time, the square tube 3 on the support block 17 is located above the supporting member 25 and corresponds to the vertical position of the U-shaped bracket. The lifting platform 24 is controlled to rise, driving the supporting member 25 to lift the square tube 3 to the horizontal height corresponding to the laser chuck 21, and the laser chuck 21 is controlled to move toward the cutting device 23. During the movement, the laser chuck 21 clamps one end of the square tube 3. When the laser chuck 21 moves to a position close to the supporting member 25, the corresponding lifting platform 24 is controlled to descend to avoid the laser chuck 21. The other end of the square tube 3 is gradually passed through the cutting equipment, and the square tube 3 is cut by the cutting equipment.

[0032] The cutting equipment of the present invention is provided with a tube warehouse 11 for stacking square tubes 3. The square tubes 3 in the bottom row of the tube warehouse 11 are pushed into the tube pushing channel 18 through the first tube pushing component. During the tube pushing process, the square tube 3 at the front end of the tube pushing channel 18 is squeezed out and moved to the support block 17. The second tube pushing component pushes the support block 17 to drive the square tube 3 to move above the machine tool 2, thereby realizing automatic loading. A laser chuck 21 is provided on the machine tool 2. The laser chuck 21 clamps the square tube 3 close to the end of the laser chuck 21, and drives the square tube 3 to move toward the cutting device 23 through the laser chuck 21, thereby cutting the square tube 3.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the scope of the present invention. Any equivalent changes made using the contents of the present invention specification and its drawings are included in the scope of the present invention.

Claims

1. A laser cutting equipment for producing square tubes, comprising a laser cutting machine and an automatic loading device, the automatic loading device being arranged on one side of the laser cutting machine, the laser cutting machine comprising a machine tool, a cutting device and a laser chuck, the cutting device being fixed at one end of the machine tool, and the laser chuck being slidably arranged on the machine tool, characterized in that: The automatic loading device includes a fixed bracket, a first push-tube assembly and a second push-tube assembly. The fixed bracket is provided with a push-tube channel and a tube warehouse. The tube warehouse is used to stack square tubes. The lower front end of the tube warehouse is connected to the push-tube channel. The front end of the first push-tube assembly is in contact with the square tubes in the lower row of the tube warehouse. The first push-tube assembly is used to push the square tubes in the lower row of the tube warehouse into the push-tube channel; the second push-tube assembly is provided at the bottom end of the fixed bracket, and a support block is provided at the front end of the second push-tube assembly. The top of the support block is connected to the front end of the push-tube channel. The second push-tube assembly is used to drive the square tube to move to the top of the machine tool through the support block; the laser chuck is used to drive the square tube to move toward the cutting device.

2. The square tube production laser cutting equipment according to claim 1, characterized in that: The height of the tube pushing channel is greater than or equal to the height of a single square tube stacked in the tube warehouse, the length of the tube warehouse is greater than the length of a single square tube, and the width of the tube warehouse is an integer multiple of the width of a single square tube.

3. The square tube production laser cutting equipment according to claim 1, characterized in that: The first push tube assembly is arranged on a fixed bracket behind the tube warehouse. The first push tube assembly includes a first electric push rod and an L-shaped push plate. The rear end of the first electric push rod is fixed on the fixed bracket. The output shaft of the first electric push rod is vertically fixed to the vertical plate of the L-shaped push plate. The horizontal plate of the L-shaped push plate is located above the first electric push rod.

4. The square tube production laser cutting equipment according to claim 1, characterized in that: At least two second push tube assemblies are provided, and the second push tube assemblies are equidistantly arranged at the bottom of the fixed bracket.

5. The square tube production laser cutting equipment according to claim 1, characterized in that: The second push tube assembly includes a second electric push rod, the front end of the output shaft of the second electric push rod is fixed to the lower end of the support block, and a limit plate is provided on the front side of the top of the support block. When the square tube is pushed from the push tube channel to the support block, the front side of the square tube abuts against the limit plate.

6. The square tube production laser cutting equipment according to claim 5, characterized in that: The second push tube assembly also includes a U-shaped guide block, the top of the U-shaped guide block is fixed to the bottom of the fixed bracket, a guide channel is formed between the U-shaped guide block and the bottom of the fixed bracket, one end of the U-shaped guide block is fixed to the second electric push rod, and the output shaft of the second electric push rod is passed through the guide channel.

7. The square tube production laser cutting equipment according to claim 1, characterized in that: The machine tool is provided with a lifting slot, in which a lifting platform is provided, and a supporting member is fixed on the lifting platform. When the second push tube assembly drives the support block to move above the machine tool, the square tube on the support block is located directly above the supporting member, and the supporting member is used to lift the square tube on the support block to the horizontal height corresponding to the laser chuck.

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