Pipe laser cutting supporting and centering device and centering method thereof

Abstract

This invention belongs to the field of pipe cutting technology, and particularly relates to a pipe laser cutting material support and centering device, comprising: a machine tool, on which a front chuck structure and a rear chuck structure are arranged in the Y direction, the front chuck structure having a front chuck center L1, and the rear chuck structure having a rear chuck center L2, the rear chuck center L2 and the front chuck center L1 being collinear; a longitudinal limiting mechanism; a transverse limiting mechanism; and multiple centering mechanisms. In this technical solution, according to the type and size of the pipe to be cut, the lowest point height value of the horizontal plate limiting the pipe in the Z direction is determined, and the rightmost side value of the vertical plate limiting the pipe in the X direction is determined. The transverse moving component drives the support member to move in the X-axis until the pipe contacts the vertical plate, and the longitudinal moving component drives the support member to move in the Z-axis until the pipe contacts the transverse plate, completing the centering operation of the pipe center point L3 with the rear chuck center L2 and the front chuck center L1. It has high precision, simple operation, and wide applicability.

Description

Technical Field

[0001] This invention belongs to the field of pipe cutting technology, and particularly relates to a pipe laser cutting material support and alignment device, and a method for aligning the pipe laser cutting material support and alignment device. Background Technology

[0002] Laser cutting of pipes is an efficient and precise processing method, commonly used for cutting both metal and non-metal pipes. It has advantages such as high precision, fast cutting speed, low heat-affected zone, and high degree of automation.

[0003] To address the issue of deformation when cutting long pipes, a support mechanism is installed on the machine tool body to follow up and support the material. This support mechanism also includes a centering mechanism to center the pipe, improving processing accuracy. Existing centering mechanisms are only suitable for a single type of pipe; for example, using multiple ring-shaped telescopic rods that extend and retract synchronously to support a round pipe only allows for centering operations on round pipes.

[0004] To address the aforementioned issues, a pipe laser cutting material support centering device and a centering method for the pipe laser cutting material support centering device are designed. Summary of the Invention

[0005] To address the problems in the prior art, the present invention proposes the following technical solution:

[0006] A tube laser cutting material support and alignment device, comprising:

[0007] The machine tool is provided with a front chuck structure and a rear chuck structure distributed in the Y direction. The front chuck structure has a front chuck center L1 and the rear chuck structure has a rear chuck center L2. The rear chuck center L2 and the front chuck center L1 are collinear.

[0008] A longitudinal limiting mechanism, comprising a horizontal plate that moves vertically, the horizontal plate limiting the pipe in the Z direction;

[0009] A lateral limiting mechanism, comprising a longitudinal plate that moves in the left-right direction, the longitudinal plate limiting the pipe in the X direction;

[0010] A plurality of centering mechanisms, each centering mechanism comprising a base shell with an open top, wherein the base shell is provided with a support member, a transverse moving component that drives the support member to move in the left and right directions, and a longitudinal moving component that drives the support member to move in the up and down directions.

[0011] Adjust the horizontal and vertical plates to the predetermined positions, place the pipe on the support, and the horizontal moving component moves the support in the left and right directions until the pipe contacts the vertical plate. The vertical moving component moves the support in the up and down directions until the pipe contacts the horizontal plate.

[0012] As a preferred embodiment of the above technical solution, the longitudinal limiting mechanism further includes a longitudinally distributed electric push rod, the output end of which is connected to the horizontal plate;

[0013] The machine tool has a cavity and a strip groove connecting the cavity to the outside of the machine tool. The electric push rod and the cross plate are assembled inside the cavity, and the cross plate passes through the strip groove and extends to the outside of the machine tool.

[0014] As a preferred embodiment of the above technical solution, the lateral limiting mechanism includes a second electric push rod arranged laterally, and the output end of the second electric push rod is connected to the longitudinal plate;

[0015] The horizontal plate has a mounting groove, the electric push rod is mounted on the side wall of the mounting groove, and the vertical plate passes through the mounting groove.

[0016] As a preferred embodiment of the above technical solution, the upper end of the support member is rotatably provided with a roller, which is arranged parallel to the X-direction.

[0017] As a preferred embodiment of the above technical solution, the longitudinal movement component includes three longitudinally distributed electric push rods;

[0018] The lower end of the support member is provided with a lower groove, the bottom of the electric push rod three is assembled inside the base shell, and the output end of the electric push rod three is assembled inside the lower groove.

[0019] As a preferred embodiment of the above technical solution, the side wall of the lower groove is provided with a horizontally distributed sliding groove three, and the output end of the electric push rod three is connected to a slider three, which slides in cooperation with the sliding groove three.

[0020] The lateral movement assembly includes a motor and a frame sleeved on a support member. The output end of the motor is connected to a gear, and the gear meshes with a rack provided on the frame.

[0021] The frame is provided with a second slider, and the inner wall of the base shell is provided with a second sliding groove, and the second slider slides in conjunction with the second sliding groove.

[0022] As a preferred embodiment of the above technical solution, the longitudinal plate is provided with a second mounting groove, and the side wall of the second mounting groove is provided with a longitudinally distributed sliding groove. A slider is slidably fitted in the sliding groove, and a spring is provided between the slider and the bottom wall of the second mounting groove.

[0023] One end of the slider three extends to the outside of the lower groove and is connected to a protrusion. The protrusion is higher than the support member, and the longitudinal plate is located on the moving path of the protrusion.

[0024] The alignment method of the tube laser cutting material support alignment device according to any one of the above includes the following steps:

[0025] S1. Coordinate system generation: The coordinate system is generated with the center L of the front chuck as the base point. The coordinates of the center L1 of the front chuck are (X1, Y1, Z1), and the coordinates of the center L2 of the rear chuck are (X2, Y2, Z2). Among them, X1 and X2 are the same, and Z1 and Z2 are the same.

[0026] S2. Pipe data determination: Input the pipe data into the machine tool's operating system, select support points on the pipe whose quantity and position match the centering mechanism, and determine the data of each support point, including center point L3 (X3, Y3, Z3), the distance A from the extension line of center point L3 to the top, and the distance B from the extension line of center point L3 to the side.

[0027] S3. Adjustment of limit mechanism: Assume that the center point L is collinear with L1 and L2, that is, X1, X2, X3 are the same, Z1, Z2, Z3 are the same. Adjust the horizontal plate into position in the vertical direction. The height of the lowest point of the horizontal plate is Z1+A.

[0028] Adjust the vertical plate into position in the left and right directions, with the rightmost side value of the vertical plate being -X1-B;

[0029] S4. Pipe alignment: Place the pipe on the support, with multiple support points corresponding to multiple support members. The transverse component moves the pipe in the left and right directions until it abuts against the longitudinal plate.

[0030] The longitudinal moving component drives the pipe to move vertically until it abuts against the horizontal plate.

[0031] The beneficial effects of this invention are as follows:

[0032] In the technical solution of this tube laser cutting material support and alignment device, the lowest point height value of the horizontal plate limiting the tube in the Z direction is determined according to the type and size of the tube to be cut, and the rightmost side value of the vertical plate limiting the tube in the X direction is determined. The horizontal moving component drives the support to move in the X-axis until the tube contacts the vertical plate, and the vertical moving component drives the support to move in the Z-axis until the tube contacts the horizontal plate. This completes the alignment operation of the tube center point L3 with the rear chuck center L2 and the front chuck center L1. It has high precision, simple operation, and wide applicability. Attached Figure Description

[0033] Figure 1 The diagram shown is a structural schematic of the tube laser cutting support and alignment device in Embodiment 1;

[0034] Figure 2 What is shown is Figure 1 A partial structural schematic diagram of the centering device for laser cutting of medium-sized pipes;

[0035] Figure 3 What is shown is Figure 2 Mid-side sectional view;

[0036] Figure 4 What is shown is Figure 3 Schematic diagram of a local structure in the middle;

[0037] Figure 5 The diagram shown is a schematic of the pipe structure adapted to the pipe laser cutting material alignment device in Embodiment 1.

[0038] Reference numerals: Machine tool 10; Rear chuck structure 12; Rear chuck center L2; Front chuck structure 11; Front chuck center L1; Cavity 13; Slot 131;

[0039] Longitudinal limiting mechanism 20; horizontal plate 21; mounting groove 211; electric push rod 22;

[0040] Lateral limiting mechanism 30; longitudinal plate 31; mounting groove 2 311; slide groove 1 312; electric push rod 2 32; slider 1 33; spring 34;

[0041] Centering mechanism 40; base shell 41; slide groove 2 411; support component 42; roller 421; lower groove 422; transverse movement assembly 43; motor 431; gear 432; rack 433; frame 434; slider 2 435; longitudinal movement assembly 44; electric push rod 3 441; slider 3 442; protrusion 443. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0043] Example 1

[0044] like Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, the tube laser cutting material support and centering device includes: a machine tool 10, on which a front chuck structure 11 and a rear chuck structure 12 distributed in the Y direction are provided. After the tube is centered, the front chuck structure 11 and the rear chuck structure 12 clamp the tube, and the longitudinal limiting mechanism 20, the transverse limiting mechanism 30 and the centering mechanism 40 avoid each other. The machine tool 10 performs laser cutting operation on the tube. The machine tool 10, the front chuck structure 11 and the rear chuck structure 12 are all mature structures in the prior art, and will not be described in detail here. In this embodiment, the X-axis corresponds to the left and right direction, the Y-axis corresponds to the front and back direction, and the Z-axis corresponds to the up and down direction.

[0045] The front chuck structure 11 has a front chuck center L1, and the rear chuck structure 12 has a rear chuck center L2. The rear chuck center L2 and the front chuck center L1 are collinear.

[0046] The longitudinal limiting mechanism 20 includes a horizontal plate 21 that moves in the vertical direction, and the horizontal plate 21 limits the pipe in the Z direction.

[0047] The lateral limiting mechanism 30 includes a longitudinal plate 31 that moves in the left and right direction, and the longitudinal plate 31 limits the pipe in the X direction.

[0048] Multiple centering mechanisms 40 are provided. Each centering mechanism 40 includes a base shell 41 with an opening at the top. Inside the base shell 41, there is a support member 42, a transverse moving component 43 that drives the support member 42 to move in the left and right directions, and a longitudinal moving component 44 that drives the support member 42 to move in the up and down directions.

[0049] The horizontal plate 21 and the vertical plate 31 are adjusted to the predetermined positions, the pipe is placed on the support member 42, the horizontal moving component 43 drives the support member 42 to move in the left and right directions until the pipe contacts the vertical plate 31, and the vertical moving component 44 drives the support member 42 to move in the up and down directions until the pipe contacts the horizontal plate 21.

[0050] The centering method of the tube laser cutting material support centering device includes the following steps: In this embodiment, a round tube is used as an example.

[0051] S1. Coordinate system generation: The coordinate system is generated with the center L1 of the front chuck as the base point. The coordinates of the center L1 of the front chuck are (X1, Y1, Z1), that is, X1, Y1, Z1 are all 0. The coordinates of the center L2 of the rear chuck are (X2, Y2, Z2), where X1 and X2 are the same, and Z1 and Z2 are the same.

[0052] S2. Pipe data determination: Input the pipe data into the operating system of the machine tool 10, select support points on the pipe whose quantity and position match the centering mechanism 40, and determine the data of each support point, including the center point L3 (X3, Y3, Z3), the distance A from the extension line of the center point L3 to the top, where A is the outer radius R1 of the pipe, and the distance B from the extension line of the center point L3 to the sidemost end, where B is the outer radius R2 of the pipe.

[0053] S3. Adjustment of limit mechanism: Assume that the center point L3 is collinear with L1 and L2, that is, X1, X2, X3 are the same, Z1, Z2, Z3 are the same. Adjust the horizontal plate 21 in the vertical direction. The height of the lowest point of the horizontal plate 21 is Z1+A, and the height of the lowest point of the horizontal plate 21 is R1.

[0054] Adjust the longitudinal plate 31 into position in the left and right directions. The rightmost side value of the longitudinal plate 31 is -X1-B, and the rightmost side value of the longitudinal plate 31 is -R2.

[0055] S4. Pipe alignment: Place the pipe on the support 42. Multiple support points correspond to multiple support 42 respectively. The transverse moving component 43 drives the pipe to move in the left and right directions until it abuts against the longitudinal plate 31.

[0056] The longitudinal moving component 44 drives the pipe to move up and down until it abuts against the horizontal plate 21. At this time, L3 is collinear with L1 and L2, completing the centering operation.

[0057] In the technical solution of this tube laser cutting material support and alignment device, the lowest point height value of the horizontal plate 21 that limits the tube in the Z direction is determined according to the type and size of the tube to be cut, and the rightmost side value of the vertical plate 31 that limits the tube in the X direction is determined. The horizontal moving component 43 drives the support 42 to move in the X-axis until the tube contacts the vertical plate 31. The longitudinal moving component 44 drives the support 42 to move in the Z-axis until the tube contacts the horizontal plate 21, thus completing the alignment operation of the tube center point L3 with the rear chuck center L2 and the front chuck center L1. It has high precision, simple operation, and wide applicability.

[0058] To address the need for vertical movement of the horizontal plate 21, such as Figure 3 As shown, the longitudinal limiting mechanism 20 also includes a longitudinally distributed electric push rod 22, the output end of which is connected to the horizontal plate 21; by controlling the change of the overall length of the electric push rod 22, the horizontal plate 21 is controlled to move in the vertical direction.

[0059] To solve the problem of the distribution and installation of the longitudinal limiting mechanism 20, the machine tool 10 is provided with a cavity 13 and a strip groove 131 connecting the cavity 13 and the outside of the machine tool 10. The electric push rod 22 and the cross plate 21 are assembled inside the cavity 13, and the cross plate 21 passes through the strip groove 131 and extends to the outside of the machine tool 10.

[0060] The electric push rod 22 extends or shortens, causing the horizontal plate 21 to move upward or downward inside the cavity 13 and the strip groove 131, thereby realizing the longitudinal limiting mechanism 20 to limit the pipe in the Z-axis direction.

[0061] To achieve the requirement for the longitudinal plate 31 to move in the left and right directions, such as Figure 3 As shown, the lateral limiting mechanism 30 includes a second electric push rod 32 arranged laterally, and the output end of the second electric push rod 32 is connected to the longitudinal plate 31; by controlling the change of the overall length of the second electric push rod 32, the longitudinal plate 31 is controlled to move in the left and right directions.

[0062] To address the issues of the distributed installation of the lateral limiting mechanism 30 and its installation and coordination with the longitudinal limiting mechanism 20, an installation groove 211 is provided on the horizontal plate 21. The electric push rod 32 is mounted on the side wall of the installation groove 211, and the longitudinal plate 31 passes through the installation groove 211.

[0063] The electric push rod 32 extends or retracts, causing the longitudinal plate 31 to move to the right or left in the mounting groove 211, thereby limiting the pipe in the X-axis direction by the lateral limiting mechanism 30.

[0064] The lateral limiting mechanism 30 is installed in the mounting slot 211 on the horizontal plate 21. The distribution is reasonable and reduces the space occupied. One set of longitudinal limiting mechanism 20 and lateral limiting mechanism 30 corresponds to one centering mechanism 40, reducing the number of support points that need to be determined.

[0065] To improve the ease of placing the pipe on the support 42, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a roller 421 is rotatably mounted on the upper end of the support member 42, and the roller 421 is arranged parallel to the X direction.

[0066] The setting of roller 421 changes the sliding friction between the pipe and the support 42 to the rolling friction between the pipe and roller 421. When the pipe is placed on the support 42, it is convenient to move the pipe in the Y-axis direction, and it is convenient to move the pipe to multiple support points to match the corresponding centering mechanism 40.

[0067] To achieve the configuration that allows the support member 42 to move vertically within the base shell 41, such as... Figure 3 , Figure 4 As shown, the longitudinal movement assembly 44 includes three longitudinally distributed electric push rods 441; by controlling the change in the overall length of the electric push rods 441, the support member 42 is driven to move in the vertical direction (Z-axis direction).

[0068] The lower end of the support member 42 is provided with a lower groove 422, the bottom of the electric push rod 441 is assembled inside the base shell 41, and the output end of the electric push rod 441 is assembled inside the lower groove 422.

[0069] like Figure 3 , Figure 4 As shown, the side wall of the lower groove 422 is provided with horizontally distributed sliding grooves 3, and the output end of the electric push rod 3 441 is connected to the slider 3 442, which slides in cooperation with the sliding groove 3.

[0070] The transverse component 43 includes a motor 431 and a frame 434 sleeved on the support member 42. The output end of the motor 431 is connected to a gear 432, and the gear 432 meshes with a rack 433 provided on the frame 434. A second slider 435 is provided on the frame 434, and a second groove 411 is provided on the inner wall of the base shell 41. The second slider 435 slides in cooperation with the second groove 411 to limit the movement of the frame 434 in the left and right directions.

[0071] In the transverse assembly 43, the forward or reverse rotation of the motor 431 drives the frame 434 to move in the left and right directions through the rack 433 meshing with the gear 432, thereby realizing the movement of the support member 42 in the left and right directions (X-axis direction).

[0072] In the centering mechanism 40, the electric push rod 441 of the longitudinal moving component 44 is set inside the lower groove 422, and the slider 442 slides with the slide groove, which does not affect the movement of the support member 42 driven by the transverse moving component 43 in the left and right directions; the frame 434 of the transverse moving component 43 is sleeved on the outside of the support member 42, which does not affect the movement of the support member 42 driven by the longitudinal moving component 44 in the up and down directions; the positions of the transverse moving component 43 and the longitudinal moving component 44 are reasonably distributed and cooperate with each other to achieve the requirements of the centering of the pipe.

[0073] After the positions of the longitudinal plate 31 along the X-axis and the transverse plate 21 along the Y-axis are determined, the support member 42 moves the pipe. However, there is a situation where the left end of the support member 42 contacts the right end of the longitudinal plate 31, preventing the support member 42 from moving the pipe into position along the X-axis. To solve this problem, as follows... Figure 3 , Figure 4 As shown, the longitudinal plate 31 has a second mounting groove 311, and the side wall of the second mounting groove 311 has a longitudinally distributed sliding groove 312. A slider 33 is slidably fitted in the sliding groove 312, and a spring 34 is provided between the slider 33 and the bottom wall of the second mounting groove 311. One end of the slider 442 extends to the outside of the lower groove 422 and is connected to a protrusion 443. The protrusion 443 is higher than the support member 42, and the longitudinal plate 31 is located on the moving path of the protrusion 443.

[0074] When the lower end of the longitudinal plate 31 is pushed by the protrusion 443, the longitudinal plate 31 moves upward. At this time, the spring 34 is compressed, the slider 33 slides with the groove 312, and after the longitudinal plate 31 is no longer under force, the longitudinal plate 31 returns to its original position under the action of the spring 34.

[0075] As the support member 42 gradually moves the pipe upward, the protrusion 443 first contacts the longitudinal plate 31, causing the longitudinal plate 31 to move upward, so that the longitudinal plate 31 is always higher than the support member 42, avoiding the longitudinal plate 31 from affecting the movement of the support member 42, and ensuring that the support member 42 drives the pipe to contact the transverse plate 21 in the Z-axis direction and drives the pipe to contact the longitudinal plate 31 in the X-axis direction.

[0076] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A tube laser cutting material support and alignment device, characterized in that, include: The machine tool (10) is provided with a front chuck structure (11) and a rear chuck structure (12) distributed in the Y direction. The front chuck structure (11) has a front chuck center L1, and the rear chuck structure (12) has a rear chuck center L2. The rear chuck center L2 and the front chuck center L1 are collinear. The longitudinal limiting mechanism (20) includes a horizontal plate (21) that moves in the up and down direction, and the horizontal plate (21) limits the pipe in the Z direction; A lateral limiting mechanism (30) includes a longitudinal plate (31) that moves in the left and right direction, and the longitudinal plate (31) limits the pipe in the X direction. Multiple centering mechanisms (40) are provided, each centering mechanism (40) includes a base shell (41) with an opening at the top, and the base shell (41) is provided with a support member (42), a transverse moving component (43) that drives the support member (42) to move in the left and right directions, and a longitudinal moving component (44) that drives the support member (42) to move in the up and down directions. Adjust the horizontal plate (21) and the vertical plate (31) to the predetermined position, place the pipe on the support (42), the horizontal moving component (43) drives the support (42) to move in the left and right direction until the pipe contacts the vertical plate (31), and the vertical moving component (44) drives the support (42) to move in the up and down direction until the pipe contacts the horizontal plate (21). The longitudinal limiting mechanism (20) also includes a longitudinally distributed electric push rod (22), the output end of which is connected to the cross plate (21); the machine tool (10) is provided with a cavity (13) and a strip groove (131) connecting the cavity (13) and the outside of the machine tool (10); the electric push rod (22) and the cross plate (21) are assembled inside the cavity (13), and the cross plate (21) passes through the strip groove (131) and extends to the outside of the machine tool (10); The lateral limiting mechanism (30) includes a second electric push rod (32) arranged laterally, the output end of which is connected to the longitudinal plate (31); the horizontal plate (21) has an installation groove (211), the second electric push rod (32) is mounted on the side wall of the installation groove (211), and the longitudinal plate (31) passes through the installation groove (211). The longitudinal movement assembly (44) includes three longitudinally distributed electric push rods (441); the lower end of the support member (42) is provided with a lower groove (422), the bottom of the electric push rods (441) is assembled inside the base shell (41), and the output end of the electric push rods (441) is assembled inside the lower groove (422). The lower groove (422) has a horizontally distributed sliding groove three on its side wall. The output end of the electric push rod three (441) is connected to a slider three (442), and the slider three (442) slides in cooperation with the sliding groove three. The transverse moving assembly (43) includes a motor (431) and a frame (434) sleeved on the support member (42). The output end of the motor (431) is connected to a gear (432), and the gear (432) meshes with a rack (433) set on the frame (434). A slider two (435) is set on the frame (434), and a sliding groove two (411) is opened on the inner wall of the base shell (41). The slider two (435) slides in cooperation with the sliding groove two (411). The longitudinal plate (31) has an installation groove 2 (311) and a longitudinally distributed sliding groove 1 (312) on the side wall of the installation groove 2 (311). A slider 1 (33) is slidably fitted in the sliding groove 1 (312). A spring (34) is provided between the slider 1 (33) and the bottom wall of the installation groove 2 (311). One end of the slider 3 (442) extends to the outside of the lower groove (422) and is connected to a protrusion (443). The protrusion (443) is higher than the support member (42), and the longitudinal plate (31) is located on the moving path of the protrusion (443).

2. The tube laser cutting material support and alignment device according to claim 1, characterized in that, The upper end of the support member (42) is rotatably provided with a roller (421), which is parallel to the X direction.

3. The centering method of the tube laser cutting material support centering device according to any one of claims 1-2, characterized in that, Includes the following steps: S1. Coordinate system generation: A coordinate system is generated with the center L1 of the front chuck as the base point. The coordinates of the center L1 of the front chuck are (X1, Y1, Z1), and the coordinates of the center L2 of the rear chuck are (X2, Y2, Z2). Among them, X1 and X2 are the same, and Z1 and Z2 are the same. S2. Pipe data determination: Input the pipe data into the operating system of the machine tool (10), select the support points on the pipe whose quantity and position match the centering mechanism (40), and determine the data of each support point, including the center point L3 (X3, Y3, Z3), the distance A from the extension line of the center point L3 to the top, and the distance B from the extension line of the center point L3 to the side. S3, Limiting mechanism adjustment: Assume that the center point L3 is collinear with L1 and L2, that is, X1, X2, X3 are the same, Z1, Z2, Z3 are the same, adjust the horizontal plate (21) in the vertical direction, and the height of the lowest point of the horizontal plate (21) is Z1+A. Adjust the longitudinal plate (31) into position in the left and right directions, and the rightmost side value of the longitudinal plate (31) is -X1-B; S4. Pipe alignment: Place the pipe on the support (42), with multiple support points corresponding to multiple support (42) respectively. The horizontal moving component (43) moves the pipe in the left and right directions until it abuts against the vertical plate (31); the vertical moving component (44) moves the pipe in the up and down directions until it abuts against the horizontal plate (21).

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