Positioning laser cutting machine for stainless steel bar

Abstract

The invention discloses a positioning laser cutting machine for stainless steel bars, and relates to the technical field of laser cutting, the positioning laser cutting machine comprises a positioning mechanism and a cutting mechanism installed on the positioning mechanism, the positioning mechanism comprises a cutting platform, a sliding frame is installed on the cutting platform in a sliding mode, and a movable sliding rod is fixedly installed on the sliding frame; an upper positioning frame and a lower positioning frame are symmetrically arranged on the movable sliding rod in a sliding mode, the upper positioning frame and the lower positioning frame are symmetrical about a first reference plane, a two-way screw rod is rotationally installed on the sliding frame, two sections of threads with opposite rotating directions are arranged on the two-way screw rod, and the upper positioning frame and the lower positioning frame synchronously move in opposite or back-to-back directions; the laser cutting device is suitable for laser cutting of heavy bar structures with various diameter sizes, automatic conveying, cutting and blanking of bars are achieved, and the working efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting, and in particular to a positioning laser cutting machine for stainless steel bars. Background Art

[0002] There are many cutting methods for rod-shaped stainless steel materials in the prior art, among which laser positioning cutting technology has been mature. It is a common method to clamp the rod with a clamping assembly, rotate the rod under the drive of the rotatable clamping assembly, and then use a relatively fixed laser cutter head for laser cutting. However, due to the weight of heavy and large-diameter stainless steel rods, the load is too large when the rod is clamped and rotated for a long time. During the rotation of the rod, the cutting position is easily offset due to machine vibration and other reasons, affecting the finished product effect.

[0003] Therefore, the present invention provides a positioning laser cutting machine for stainless steel bars, which can cut heavy bars of different sizes by cutting the bars in a circular manner with a laser cutting head. Summary of the invention

[0004] In view of the defects in the prior art, the present invention provides a positioning laser cutting machine for stainless steel bars to overcome the problems in the prior art.

[0005] The technical solution adopted by the present invention is: a positioning laser cutting machine for stainless steel bars, comprising a positioning mechanism and a cutting mechanism installed on the positioning mechanism, the positioning mechanism comprising a cutting platform, a slide is slidably installed on the cutting platform, a moving slide is fixedly installed on the slide, an upper positioning frame and a lower positioning frame are symmetrically slidably arranged on the moving slide, the upper positioning frame and the lower positioning frame are symmetrical about a first reference plane, a bidirectional screw is rotatably installed on the slide, two sections of threads with opposite rotation directions are arranged on the bidirectional screw, the upper positioning frame and the lower positioning frame move synchronously, and the moving direction Relative to or back to back; a gear ring frame is rotatably installed on the cutting platform, and a fixed slide rod is fixedly installed on the cutting platform, and a lower support frame is slidably installed on the fixed slide rod, the lower support frame and the upper surface of the lower positioning frame are in the same horizontal plane, the first reference plane and the first longitudinal symmetry plane of the gear ring frame are in the same horizontal plane, the upper positioning frame, the lower positioning frame, and the lower support frame are symmetrical about the second reference plane, the second reference plane is vertically distributed with the first reference plane, the intersection of the second reference plane and the first reference plane is the axis of the gear ring frame, and the upper positioning frame, the lower positioning frame, and the lower support frame are in a "V" shape.

[0006] Furthermore, a slide is installed on the cutting platform, which is slidably connected to the support yield plate. An inclined section is respectively arranged at both ends of the support yield plate, and the support yield plate is connected to the cutting platform through a yield spring. Under normal circumstances, the upper surface of the support yield plate is in the same horizontal plane as the upper surfaces of the lower support frame and the lower positioning frame.

[0007] Furthermore, a push plate is installed on the lower positioning frame, and the push plate corresponds to the position of the gear ring frame. A vertical plate is installed on the cutting platform, and the vertical plate is located between the gear ring frame and the lower supporting frame.

[0008] Furthermore, a positioning screw is rotatably installed on the cutting platform, the positioning screw is threadedly connected to the slide, the positioning screw is coaxially fixedly connected to the propulsion gear, the propulsion gear cooperates with the incomplete gear, and the incomplete gear is connected to the output shaft of the positioning motor.

[0009] Furthermore, a guide groove disk is rotatably mounted on the gear ring frame, and three guide grooves are evenly arranged on the guide groove disk. A first end of a clamping plate is slidably mounted in each guide groove, and a second end of the clamping plate is slidably mounted on the gear ring frame, and all the clamping plates move synchronously.

[0010] Furthermore, a clamping roller is rotatably mounted on the second end of each clamping plate.

[0011] Furthermore, an incomplete gear ring is fixedly mounted on the guide groove disk, the incomplete gear ring is meshed with a clamping gear, the clamping gear is connected to an output shaft of a clamping motor, and the clamping motor is mounted on a gear ring frame.

[0012] Furthermore, a blanking plate is rotatably mounted on the cutting platform, the blanking plate is connected to the cutting platform via a blanking spring, and the axis of the rotating shaft of the blanking plate is not located on the second reference plane.

[0013] Furthermore, a hydraulic cylinder is installed on the gear ring frame, a piston rod of the hydraulic cylinder is connected to a slide rail, and a laser cutting head is slidably installed in the slide rail.

[0014] Compared with the prior art, the present invention has the following advantages: (1) The present invention presses down the support plate through the rod, so that the support plate slides on the slide seat, compresses the spring, and the rod is stuck in the "V" part of the lower support frame and the lower positioning frame. The surface of the rod is tangent to the "V" part of the lower support frame and the lower positioning frame. At this time, the position of the rod is initially positioned; (2) The present invention drives the upper positioning frame and the lower positioning frame to move relative to each other until the upper positioning frame and the lower positioning frame are in contact with the rod, clamping the rod in the middle, so that the rod The gear ring frame is coaxial with the gear ring frame for further positioning; (3) The present invention is suitable for laser cutting of heavy-duty rod structures of various diameters and sizes, and realizes the automated transmission, cutting and blanking of the rods with high work efficiency; (4) In order to ensure accuracy and reduce errors, the present invention starts the clamping motor to drive the clamping gear to rotate before cutting, which drives the incomplete gear ring and the guide groove disk to rotate, and drives the clamping plate to slide on the gear ring frame and the guide groove disk. Multiple clamping plates synchronously move toward the axis until the clamping roller contacts the rod, thereby clamping the rod to a limit position. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 The local structure diagram of the positioning mechanism of the present invention is shown in FIG. Figure 1 .

[0017] Figure 3 for Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0018] Figure 4 The local structure diagram of the positioning mechanism of the present invention is shown in FIG. Figure 2 .

[0019] Figure 5 The local structure diagram of the positioning mechanism of the present invention is shown in FIG. Figure 3 .

[0020] Figure 6 The local structure diagram of the positioning mechanism of the present invention is shown in FIG. Figure 4 .

[0021] Figure 7 It is a schematic diagram of the partial structure of the positioning mechanism and the cutting mechanism of the present invention.

[0022] Figure 8 It is a schematic diagram of the partial cross-sectional structure of the cutting mechanism of the present invention.

[0023] Fig. 9 It is a schematic diagram of the local structure of the cutting mechanism of the present invention.

[0024] Fig.10 for Figure 5 Schematic diagram of the local enlarged structure at point B in the middle.

[0025] Reference numerals: 1-positioning mechanism; 2-cutting mechanism; 101-cutting platform; 102-positioning motor 1; 103-incomplete gear; 104-advancing gear; 105-positioning lead screw; 106-slide; 107-positioning motor 2; 108-bidirectional lead screw; 109-upper positioning frame; 110-lower positioning frame; 111-advancing plate; 112-moving slide rod; 113-bevel gear 1; 114-bevel gear 2; 115-spline shaft; 116-sleeve; 117-bevel gear 3; 118-bevel gear 4; 1 19-supporting screw; 120-fixed slide rod; 121-lower supporting frame; 122-vertical plate; 123-supporting yield plate; 124-slide seat; 125-yielding spring; 201-cutting gear; 202-gear ring frame; 203-guide groove plate; 204-incomplete gear ring; 205-clamping gear; 206-clamping motor; 207-blank plate; 208-blank spring; 209-clamping plate; 210-clamping roller; 211-hydraulic cylinder; 212-slide rail; 213-laser cutting head; 214-adjusting screw. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings and exemplary embodiments, and the illustrative embodiments and description of the present invention are used to explain the present invention, but are not intended to limit the present invention. In addition, if the detailed description of the known technology is unnecessary for illustrating the features of the present invention, it will be omitted.

[0027] Example: Reference Figure 1-Figure 10The laser cutting machine for positioning stainless steel bars shown in the figure comprises a positioning mechanism 1 and a cutting mechanism 2 installed on the positioning mechanism 1, wherein the positioning mechanism 1 comprises a cutting platform 101, a positioning motor 1 102, an incomplete gear 103, a propulsion gear 104, a positioning screw 105, a slide 106, a positioning motor 2 107, a bidirectional screw 108, an upper positioning frame 109, a lower positioning frame 110, a propulsion plate 111, a movable slide bar 112, a bevel gear 1 113, a bevel gear 2 114, a spline shaft 115, a sleeve 116, a bevel gear 3 117, a bevel gear 4 118, a support screw 119, a fixed slide bar 120, a lower support frame 121, and a vertical plate 122. , support and give way plate 123, slide seat 124, give way spring 125, cutting mechanism 2 includes cutting gear 201, gear ring frame 202, guide groove plate 203, incomplete gear ring 204, clamping gear 205, clamping motor 206, blanking plate 207, blanking spring 208, clamping plate 209, clamping roller 210, hydraulic cylinder 211, slide rail 212, laser cutting head 213, adjusting screw rod 214; a slide 106 is slidably mounted on the cutting platform 101, a moving slide rod 112 is fixedly mounted on the slide 106, an upper positioning frame 109 and a lower positioning frame 110 are symmetrically slidably arranged on the moving slide rod 112, and the upper positioning frame 109 and the lower positioning frame 110 are symmetrically slidably mounted on the moving slide rod 112. Symmetrical about the first reference plane, a bidirectional screw rod 108 is rotatably mounted on the carriage 106, the bidirectional screw rod 108 is connected to the output shaft of the second positioning motor 107, the second positioning motor 107 is mounted on the carriage 106, and the bidirectional screw rod 108 is provided with two sections of threads with opposite rotation directions, the upper positioning frame 109 and the lower positioning frame 110 move synchronously, and the moving directions are opposite or opposite; a gear ring frame 202 is rotatably mounted on the cutting platform 101, the gear ring frame 202 is meshed with the cutting gear 201, the cutting gear 201 is rotatably mounted on the cutting platform 101, the cutting gear 201 is connected to the cutting motor 1, the cutting motor 1 is mounted on the cutting platform 101, and the cutting platform 101 A fixed slide rod 120 is fixedly installed, and a lower support frame 121 is slidably installed on the fixed slide rod 120. The lower support frame 121 is in the same horizontal plane with the upper surface of the lower positioning frame 110, the first reference plane and the first longitudinal symmetry plane of the gear ring frame 202 are in the same horizontal plane, the upper positioning frame 109, the lower positioning frame 110, and the lower support frame 121 are symmetrical about the second reference plane, the second reference plane and the second longitudinal symmetry plane of the gear ring frame 202 are in the same horizontal plane, the second reference plane is vertically distributed with the first reference plane, the intersection of the second reference plane and the first reference plane is the axis of the gear ring frame 202, and the upper positioning frame 109, the lower positioning frame 110, and the lower support frame 121 are in a "V" shape.

[0028] The bidirectional screw rod 108 is coaxially fixedly connected with bevel gear 113, bevel gear 113 and bevel gear 2 114 are meshed with each other, bevel gear 2 114 is coaxially fixedly connected with spline shaft 115, spline shaft 115 is spline-matched with sleeve 116, spline shaft 115 is rotatably mounted on slide 106, sleeve 116 is rotatably mounted on cutting platform 101, sleeve 116 is coaxially fixedly connected with bevel gear 3 117, bevel gear 3 117 and bevel gear 4 118 are meshed with each other, bevel gear 4 118 is coaxially fixedly connected with support screw 119, and support screw 119 is threadedly matched with lower support frame 121.

[0029] A slide 124 is installed on the cutting platform 101, and the slide 124 is slidably connected to the support yield plate 123. An inclined section is respectively arranged at both ends of the support yield plate 123, and the support yield plate 123 is connected to the cutting platform 101 through a yield spring 125; under normal circumstances, the upper surface of the support yield plate 123 is in the same horizontal plane as the upper surfaces of the lower support frame 121 and the lower positioning frame 110.

[0030] A push plate 111 is installed on the lower positioning frame 110 , and the push plate 111 corresponds to the position of the gear ring frame 202 . A vertical plate 122 is installed on the cutting platform 101 , and the vertical plate 122 is located between the gear ring frame 202 and the lower support frame 121 .

[0031] A positioning screw 105 is rotatably installed on the cutting platform 101. The positioning screw 105 is threadedly connected to the slide 106. The positioning screw 105 is coaxially fixedly connected to the propulsion gear 104. The propulsion gear 104 cooperates with the incomplete gear 103. The incomplete gear 103 is connected to the output shaft of the positioning motor 102. The positioning motor 102 is installed on the cutting platform 101.

[0032] A guide groove disk 203 is rotatably mounted on the gear ring frame 202. Three guide grooves are evenly arranged on the guide groove disk 203. A first end of a clamping plate 209 is slidably mounted in each guide groove. The second end of the clamping plate 209 is slidably mounted on the gear ring frame 202. All the clamping plates 209 move synchronously.

[0033] A clamping roller 210 is rotatably mounted on the second end of each clamping plate 209 .

[0034] An incomplete gear ring 204 is fixedly mounted on the guide groove plate 203 . The incomplete gear ring 204 meshes with a clamping gear 205 . The clamping gear 205 is connected to an output shaft of a clamping motor 206 . The clamping motor 206 is mounted on the gear ring frame 202 .

[0035] A blanking plate 207 is rotatably mounted on the cutting platform 101 . The blanking plate 207 is connected to the cutting platform 101 via a blanking spring 208 . The axis of the rotating shaft of the blanking plate 207 is not located on the second reference plane.

[0036] A hydraulic cylinder 211 is installed on the gear ring frame 202, and the piston rod of the hydraulic cylinder 211 is connected to the slide rail 212. A laser cutting head 213 is slidably installed in the slide rail 212. The laser cutting head 213 is threadedly connected to the adjusting screw 214. The adjusting screw 214 is rotatably installed on the slide rail 212, and the adjusting screw 214 is connected to the second cutting motor.

[0037] The working principle of the present invention is as follows: in the initial state, the lower support frame 121 and the lower positioning frame 110 are naturally in contact with the cutting platform 101, the upper surface of the support clearance plate 123 and the upper surfaces of the lower positioning frame 110 and the lower support frame 121 are in the same horizontal plane, and the heavy rods roll in from one side of the cutting platform 101 and fall on the lower support frame 121, the lower positioning frame 110, and the support clearance plate 123. After rolling a preset distance, the rods roll to the "V"-shaped position of the lower support frame 121 and the lower positioning frame 110 and stabilize.

[0038] At this time, the rod presses down the support plate 123, causing the support plate 123 to slide on the slide 124, compressing the spring 125, and the rod is stuck in the "V" part of the lower support frame 121 and the lower positioning frame 110. The surface of the rod is tangent to the "V" part of the lower support frame 121 and the lower positioning frame 110. At this time, the position of the rod is preliminarily positioned.

[0039] Then, the positioning motor 102 is started to drive the incomplete gear 103 to rotate, which drives the propulsion gear 104 to rotate, drives the positioning screw 105 to rotate, drives the slide 106 and the lower positioning frame 110 to move, and the lower positioning frame 110 moves, pushing the rod to move until the first end of the rod contacts the vertical plate 122 and the second end of the rod contacts the blanking plate 207, and the positioning motor 102 stops operating. This is the secondary positioning.

[0040] Then, the second positioning motor 107 is started to drive the bidirectional screw 108 to rotate, thereby driving the upper positioning frame 109 and the lower positioning frame 110 to move relative to each other until both the upper positioning frame 109 and the lower positioning frame 110 are in contact with the rod material, clamping the rod material in the middle, and the second positioning motor 107 stops operating.

[0041] When the bidirectional screw 108 rotates, it drives the bevel gear 1 113 to rotate, drives the bevel gear 2 114 and the spline shaft 115 to rotate, drives the sleeve 116 and the bevel gear 3 117 to rotate, drives the bevel gear 4 118 and the supporting screw 119 to rotate, drives the lower support frame 121 and the lower positioning frame 110 to rise and fall synchronously, and makes the rod and the gear ring frame 202 coaxial. This is the third positioning.

[0042] The positioning motor 102 is started to drive the incomplete gear 103 to rotate, and the propulsion gear 104 is driven to rotate. Each rotation of the incomplete gear 103 drives the propulsion gear 104 and the positioning screw 105 to rotate by a preset angle, drives the slide 106 to move a preset distance, drives the lower positioning frame 110 and the propulsion plate 111 to move, and the propulsion plate 111 pushes the rod to move a preset distance in the direction of the gear ring frame 202. When the lower positioning frame 110 moves, it contacts the inclined sections on both sides of the support and clearance plate 123, presses down the support and clearance plate 123, compresses the clearance spring 125, and makes the support and clearance plate 123 give way.

[0043] The cutting gear 201 is driven to rotate by starting the cutting motor 1, which drives the gear ring frame 202 to rotate. The gear ring frame 202 rotates one circle, which drives the hydraulic cylinder 211, the slide rail 212, and the laser cutting head 213 to rotate one circle. The hydraulic cylinder 211 is started to extend and retract the piston rod to adjust the distance between the slide rail 212 and the laser cutting head 213 and the bar. The cutting motor 2 is started to drive the adjustment screw 214 to rotate, which drives the laser cutting head 213 to slide in the slide rail 212, adjusts the cutting position of the laser cutting head 213, and drives the laser cutting head 213 to circle around the bar through the gear ring frame 202 to perform laser cutting.

[0044] In order to ensure accuracy and reduce errors, before cutting, the clamping motor 206 is started to drive the clamping gear 205 to rotate, which drives the incomplete gear ring 204 and the guide groove disk 203 to rotate, and drives the clamping plate 209 to slide on the gear ring frame 202 and the guide groove disk 203. Multiple clamping plates 209 move toward the axis synchronously until the clamping roller 210 contacts the rod to clamp the rod to a limit position.

[0045] The cut bars fall onto the blanking plate 207, compressing the blanking spring 208, causing the blanking plate 207 to rotate and tilt, allowing the bars to slide toward the collecting device.

Claims

1. A positioning laser cutting machine for stainless steel bars, comprising a positioning mechanism (1) and a cutting mechanism (2) mounted on the positioning mechanism (1), characterized in that: The positioning mechanism (1) comprises a cutting platform (101), a slide (106) is slidably mounted on the cutting platform (101), a movable slide rod (112) is fixedly mounted on the slide rod (106), an upper positioning frame (109) and a lower positioning frame (110) are symmetrically slidably mounted on the movable slide rod (112), the upper positioning frame (109) and the lower positioning frame (110) are symmetrical about a first reference plane, a bidirectional screw rod (108) is rotatably mounted on the slide rod (106), two sections of threads with opposite rotation directions are arranged on the bidirectional screw rod (108), the upper positioning frame (109) and the lower positioning frame (110) move synchronously, and the moving directions are opposite or opposite; a gear ring frame (109) is rotatably mounted on the cutting platform (101) 202), the cutting platform (101) is fixedly mounted with a fixed slide bar (120), a lower support frame (121) is slidably mounted on the fixed slide bar (120), the lower support frame (121) and the upper surface of the lower positioning frame (110) are in the same horizontal plane, the first reference plane and the first longitudinal symmetry plane of the gear ring frame (202) are in the same horizontal plane, the upper positioning frame (109), the lower positioning frame (110), and the lower support frame (121) are symmetrical about the second reference plane, the second reference plane is vertically distributed with the first reference plane, the intersection line of the second reference plane and the first reference plane is the axis of the gear ring frame (202), and the upper positioning frame (109), the lower positioning frame (110), and the lower support frame (121) are in a "V" shape.

2. The positioning laser cutting machine for stainless steel bars according to claim 1, characterized in that: A slide seat (124) is installed on the cutting platform (101), and the slide seat (124) is slidably connected to the support and clearance plate (123). An inclined section is provided at each end of the support and clearance plate (123), and the support and clearance plate (123) is connected to the cutting platform (101) via a clearance spring (125). Under normal conditions, the upper surface of the support and clearance plate (123) is in the same horizontal plane as the upper surfaces of the lower support frame (121) and the lower positioning frame (110).

3. The positioning laser cutting machine for stainless steel bars according to claim 2 is characterized in that: The lower positioning frame (110) is provided with a push plate (111), the push plate (111) and the gear ring frame (202) are located at corresponding positions, and the cutting platform (101) is provided with a vertical plate (122), the vertical plate (122) is located between the gear ring frame (202) and the lower support frame (121).

4. The positioning laser cutting machine for stainless steel bars according to claim 3 is characterized in that: A positioning screw (105) is rotatably mounted on the cutting platform (101), the positioning screw (105) is threadedly connected to the slide (106), the positioning screw (105) is coaxially fixedly connected to the propulsion gear (104), the propulsion gear (104) cooperates with the incomplete gear (103), and the incomplete gear (103) is connected to the output shaft of the positioning motor 1 (102).

5. The positioning laser cutting machine for stainless steel bars according to claim 4 is characterized in that: A guide groove disk (203) is rotatably mounted on the gear ring frame (202), and three guide grooves are evenly arranged on the guide groove disk (203). A first end of a clamping plate (209) is slidably mounted in each guide groove, and a second end of the clamping plate (209) is slidably mounted on the gear ring frame (202), and all the clamping plates (209) move synchronously.

6. The positioning laser cutting machine for stainless steel bars according to claim 5, characterized in that: A clamping roller (210) is rotatably mounted on the second end of each clamping plate (209).

7. The positioning laser cutting machine for stainless steel bars according to claim 6, characterized in that: An incomplete gear ring (204) is fixedly mounted on the guide groove plate (203), the incomplete gear ring (204) is meshed with a clamping gear (205), the clamping gear (205) is connected to an output shaft of a clamping motor (206), and the clamping motor (206) is mounted on the gear ring frame (202).

8. The positioning laser cutting machine for stainless steel bars according to claim 7, characterized in that: A blanking plate (207) is rotatably mounted on the cutting platform (101); the blanking plate (207) is connected to the cutting platform (101) via a blanking spring (208); and the axis of the rotating shaft of the blanking plate (207) is not located on the second reference plane.

9. The positioning laser cutting machine for stainless steel bars according to claim 8, characterized in that: A hydraulic cylinder (211) is installed on the gear ring frame (202); a piston rod of the hydraulic cylinder (211) is connected to a slide rail (212); and a laser cutting head (213) is slidably installed in the slide rail (212).

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