Cutting device for processing special-shaped steel plate truss

Abstract

The present application relates to the field of laser cutting, and discloses a cutting device for special-shaped steel plate truss machining, which comprises a moving plate, a clamping assembly is arranged on the top of the moving plate, the clamping assembly comprises a placing frame, the placing frame is fixedly connected to the top of the moving plate, three groups of movable grooves are formed in the top of the placing frame, a first electric push rod is fixedly connected to the top of the moving plate, a push block is fixedly connected to the output end of the first electric push rod, a connecting rod is hingedly connected to the inner wall of the push block, and a moving frame is hingedly connected to one end of the connecting rod. In the present application, the first electric push rod drives the push block and the connecting rod, drives the moving frame to move along the limiting rod, the first roller body and the second roller body are respectively matched with the straight end and the bent part of the special-shaped steel truss, the third roller body is accurately matched with the inclined end through the cooperation of the conical gear transmission and the torsional spring assistance, the stable clamping of the complex profile in all directions is realized, and the cutting displacement is avoided.

Description

Technical Field

[0001] This invention relates to the field of laser cutting, and more particularly to a cutting device for processing irregularly shaped steel plate trusses. Background Technology

[0002] As the core load-bearing structure, the steel truss of escalators directly affects the stability and safety of equipment operation due to the processing accuracy of its irregular parts. Due to the irregular structure of irregular steel plate trusses, the cutting operation needs to adapt to complex contours and multi-angle cutting requirements. The development of special cutting equipment can greatly improve processing efficiency and ensure dimensional accuracy, which is of great practical significance for promoting the high-quality development of the escalator manufacturing industry.

[0003] Currently, the cutting of irregular parts of steel trusses in escalators mostly adopts a manual-assisted mechanical cutting mode. First, the workpiece is roughly fixed by a clamp, and then the operator relies on experience to adjust the cutting angle and path, and the cutting operation is completed step by step with the help of the cutting machine. In some scenarios, simple guide rails are used to achieve straight cutting. The whole process requires real-time manual monitoring and correction.

[0004] However, traditional fixtures are difficult to adapt to the complex contours of straight ends, bends, and sloping ends of trusses. Workpiece displacement is prone to occur during the cutting process, resulting in excessive deviations in the accuracy of the cutting surface. This not only increases the workload of subsequent corrections but may also affect the assembly compatibility of steel trusses due to dimensional errors, creating potential safety hazards. To address these issues, a cutting device for processing irregularly shaped steel plate trusses is proposed. Summary of the Invention

[0005] To overcome the above shortcomings, the present invention provides a cutting device for processing irregular steel plate trusses, which aims to solve the problem of insufficient fixation stability of irregular parts in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a cutting device for processing irregular steel plate trusses, comprising a movable plate, a clamping assembly provided on the top of the movable plate, the clamping assembly comprising a placement frame, the placement frame being fixedly connected to the top of the movable plate, and the top of the placement frame having three sets of movable slots. A first electric push rod is fixedly connected to the top of the movable plate. A push block is fixedly connected to the output end of the first electric push rod. A connecting rod is hinged to the inner wall of the push block. A movable frame is hinged to one end of the connecting rod. A fixed rod is fixedly connected to the top of the movable frame. The top of the fixed rod passes through the bottom of the movable groove and is fixedly connected to a first roller. A rotating rod is rotatably connected to the top of the movable frame. The top of the rotating rod passes through the bottom of the movable groove and is fixedly connected to a second roller.

[0007] As a further description of the above technical solution: the inner wall of the placement frame is fixedly connected to a limiting rod, and the limiting rod moves through the side of the movable frame.

[0008] As a further description of the above technical solution: a swing frame is fixedly sleeved on the outer wall of the rotating rod, a torsion spring is sleeved on the outer wall of the rotating rod, the two ends of the torsion spring are fixedly connected to the top of the moving frame and the bottom of the swing frame respectively, a sliding rod is slidably connected to the inner wall of the swing frame, and the top of the sliding rod passes through the bottom of the movable groove and is fixedly connected to a third roller.

[0009] As a further description of the above technical solution: a retaining ring is fixedly sleeved on the outer wall of the sliding rod, and the top and bottom of the retaining ring are in contact with the top of the inner wall of the placement frame and the top of the swing frame, respectively.

[0010] As a further description of the above technical solution: the bottom of the rotating rod rotates through the top of the movable frame and is fixedly fitted with a first bevel gear; the inner wall of the movable frame is rotatably connected to a second bevel gear, and the second bevel gear meshes with the first bevel gear; the inner wall of the placement frame is rotatably connected to a sliding rod, and the sliding rod moves through the side of the movable frame; the outer wall of the sliding rod is fixedly connected to a locking strip; the inner wall of the second bevel gear has a locking groove, and the inner wall of the locking groove is slidably connected to the locking strip.

[0011] As a further description of the above technical solution: a clamping assembly is provided on the top of the movable plate, the clamping assembly includes a fixed plate, the fixed plate is fixedly connected to the top of the placement frame, a rotating rod is rotatably connected to the side of the fixed plate, a clamping rod is fixedly sleeved on the outer wall of the rotating rod, a small gear is fixedly sleeved on the outer wall of the rotating rod, a second electric push rod is fixedly installed on the top of the movable plate, a first rack is fixedly connected to the top of the output end of the second electric push rod, and the first rack meshes with the small gear.

[0012] As a further description of the above technical solution: the number of clamping components is two, and the two clamping components are symmetrically arranged on both sides of the first electric push rod.

[0013] As a further description of the above technical solution: a workbench is provided below the movable plate, a first guide rail is fixedly connected to the top of the workbench, a first linear motor is slidably connected to the outer wall of the first guide rail, and the right side of the first linear motor is fixedly connected to the movable plate.

[0014] As a further description of the above technical solution: the top and bottom of the worktable are provided with cutting components, the cutting components include arc-shaped grooves, the arc-shaped grooves are opened at the top of the worktable, the bottom of the worktable is rotatably connected to a rotating shaft, the bottom of the rotating shaft is fixedly connected to a rotating frame, the top of the rotating frame is fixedly connected to a round rod, the top of the round rod passes through the arc-shaped groove and is fixedly connected to a mounting bracket, the top of the inner wall of the mounting bracket is fixedly connected to a second guide rail, the outer wall of the second guide rail is slidably connected to a second linear motor, the bottom of the second linear motor is fixedly mounted with a laser cutter, the bottom of the worktable is fixedly mounted with a third electric push rod, the output end of the third electric push rod is fixedly connected to a second rack, the outer wall of the rotating shaft is fixedly sleeved with a large gear, and the large gear meshes with the second rack.

[0015] As a further description of the above technical solution: the top of the worktable is provided with a scale bar, and the scale bar is located outside the arc groove; a pointer is fixedly connected to the outer wall of the round rod.

[0016] The present invention has the following beneficial effects: 1. In this invention, the push block and connecting rod are driven by the first electric push rod, which drives the moving frame to move along the limiting rod. The first roller and the second roller are respectively adapted to the straight end and the bent part of the irregular steel truss. With the help of bevel gear transmission and torsion spring, the third roller is precisely fitted to the inclined end, realizing a stable clamping of complex contours in all directions and avoiding cutting displacement.

[0017] 2. In this invention, two symmetrically arranged clamping components push the first rack through the second electric push rod, and the meshing pinion drives the rotating rod and clamping rod to rotate, applying stable pressure to the truss from the top, forming a coordinated upper and lower fixation with the clamping components, further improving the workpiece fixing stability and ensuring cutting accuracy.

[0018] 3. In this invention, the cutting assembly drives the second rack with the help of the third electric push rod, which meshes with the large gear to drive the rotating shaft and the rotating frame to rotate, so that the mounting frame swings along the arc groove. With the help of the scale bar and pointer, the angle can be intuitively controlled. Combined with the second linear motor to drive the laser cutting machine to move, it can flexibly adapt to the cutting needs of different angles and lengths. Attached Figure Description

[0019] Figure 1 This is a front view of a cutting device for processing irregularly shaped steel plate trusses proposed in this invention; Figure 2 This is a bottom view of a cutting device for processing irregularly shaped steel plate trusses proposed in this invention; Figure 3 This is a schematic diagram of the clamping assembly of a cutting device for processing irregularly shaped steel plate trusses proposed in this invention; Figure 4This is a bottom view of the clamping assembly of a cutting device for processing irregularly shaped steel plate trusses proposed in this invention; Figure 5 This is a schematic diagram of the clamping assembly structure of a cutting device for processing irregularly shaped steel plate trusses proposed in this invention; Figure 6 This is a schematic diagram of the clamping component of a cutting device for processing irregularly shaped steel plate trusses proposed in this invention; Figure 7 This invention proposes a cutting device for processing irregularly shaped steel plate trusses. Figure 1 Enlarged view of point A in the image; Figure 8 This invention proposes a cutting device for processing irregularly shaped steel plate trusses. Figure 4 Enlarged view of point B in the image.

[0020] Legend: 1. Moving plate; 2. Clamping assembly; 21. Placement frame; 22. Movable groove; 23. First electric push rod; 24. Push block; 25. Connecting rod; 26. Moving frame; 27. Fixed rod; 28. First roller body; 29. ​​Rotating rod; 210. Second roller body; 211. Swing frame; 212. Torsion spring; 213. Sliding rod; 214. Third roller body; 215. First bevel gear; 216. Second bevel gear; 217. Slide rod; 218. Clamping bar; 219. Clamping ring; 220. Limiting rod; 3. Pressing assembly Components; 31. Fixing plate; 32. Rotating rod; 33. Clamping rod; 34. Pinion; 35. Second electric actuator; 36. First rack; 4. Worktable; 5. First guide rail; 6. First linear motor; 7. Cutting assembly; 71. Arc groove; 72. Rotating shaft; 73. Rotating frame; 74. Round rod; 75. Mounting bracket; 76. Second guide rail; 77. Second linear motor; 78. Laser cutting machine; 79. Third electric actuator; 710. Second rack; 711. Large gear; 712. Scale bar; 713. Pointer. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Reference Figure 1An embodiment of the present invention provides a cutting device for processing irregular steel plate trusses, including a movable plate 1, a worktable 4 arranged below the movable plate 1, a first guide rail 5 fixedly connected to the top of the worktable 4, a first linear motor 6 slidably connected to the outer wall of the first guide rail 5, and the right side of the first linear motor 6 fixedly connected to the movable plate 1 to facilitate driving the movable plate 1 to move left and right.

[0023] Reference Figure 3 - Figure 5 , Figure 8A clamping assembly 2 is provided on the top of the movable plate 1. The clamping assembly 2 includes a placement frame 21 for placing irregularly shaped steel plate trusses. The placement frame 21 is fixedly connected to the top of the movable plate 1. The top of the placement frame 21 has three sets of movable slots 22 for providing a moving path for the first roller 28, the second roller 210, and the third roller 214. A first electric push rod 23 is fixedly connected to the top of the movable plate 1 for driving the push block 24 to move. The output end of the first electric push rod 23 is fixedly connected to the push block 24 to facilitate the movement of one end of the connecting rod 25. The inner wall of the push block 24 is hinged to the connecting rod 25 for driving the two movable frames 26 to move synchronously in opposite directions. One end of the connecting rod 25 is hinged to a movable... The frame 26 is used to move the first roller 28 and the second roller 210 to clamp the irregular steel plate truss. A limit rod 220 is fixedly connected to the inner wall of the placement frame 21, and the limit rod 220 movably passes through the side of the moving frame 26 to improve the moving stability of the moving frame 26. A fixing rod 27 is fixedly connected to the top of the moving frame 26. The top of the fixing rod 27 passes through the bottom of the movable groove 22 and is fixedly connected to the first roller 28, used to fix the straight end of the irregular steel plate truss. A rotating rod 29 is rotatably connected to the top of the moving frame 26. The top of the rotating rod 29 passes through the bottom of the movable groove 22 and is fixedly connected to the second roller 210, used to straighten the bent parts of the irregular steel plate truss. A swing frame 211 is fixedly sleeved on the outer wall of the rotating rod 29. A torsion spring 212 is sleeved on the outer wall of the rotating rod 29. The two ends of the torsion spring 212 are fixedly connected to the top of the movable frame 26 and the bottom of the swing frame 211, respectively, so that the third roller 214 can stably fit against the inclined end of the irregular steel plate truss. A sliding rod 213 is slidably connected to the inner wall of the swing frame 211. The top of the sliding rod 213 passes through the bottom of the movable groove 22 and is fixedly connected to the third roller 214. A retaining ring 219 is fixedly sleeved on the outer wall of the sliding rod 213. The top and bottom of the retaining ring 219 contact the top of the inner wall of the placement frame 21 and the top of the swing frame 211, respectively, to improve the rotational stability of the sliding rod 213. The bottom of the rotating rod 29 rotates through the top of the movable frame 26 and is fixedly fitted with a first bevel gear 215. The inner wall of the movable frame 26 is rotatably connected to a second bevel gear 216, and the second bevel gear 216 meshes with the first bevel gear 215. The inner wall of the placement frame 21 is rotatably connected to a slide rod 217, and the slide rod 217 moves through the side of the movable frame 26. The outer wall of the slide rod 217 is fixedly connected to a locking strip 218. The inner wall of the second bevel gear 216 has a locking groove, and the inner wall of the locking groove is slidably connected to the locking strip 218, so that the rotation of one rotating rod 29 can drive the other rotating rod 29 to rotate synchronously, thereby driving the two third rollers 214 to clamp and fix the inclined end of the irregular steel plate truss.

[0024] Reference Figure 6The top of the movable plate 1 is provided with a clamping assembly 3. There are two clamping assemblies 3, which are symmetrically arranged on both sides of the first electric push rod 23. The clamping assembly 3 includes a fixed plate 31, which is fixedly connected to the top of the placement frame 21 and is used to fix the rotating rod 32. The rotating rod 32 is rotatably connected to the side of the fixed plate 31 and is used to drive the clamping rod 33 to rotate. The clamping rod 33 is fixedly sleeved on the outer wall of the rotating rod 32 to clamp the top of the irregular steel plate truss. A small gear 34 is fixedly sleeved on the outer wall of the rotating rod 32 to facilitate the rotation of the rotating rod 32. The top of the movable plate 1 is fixedly installed with a second electric push rod 35, which is used to drive the first rack 36 to rise and fall. The top of the output end of the second electric push rod 35 is fixedly connected to the first rack 36, and the first rack 36 is meshed with the small gear 34 to facilitate the rotation of the small gear 34.

[0025] Reference Figure 1 , Figure 2 , Figure 7 The worktable 4 has cutting components 7 at its top and bottom. Each cutting component 7 includes an arc-shaped groove 71 at the top of the worktable 4. A rotating shaft 72 is rotatably connected to the bottom of the worktable 4 to facilitate the rotation of a rotating frame 73. The rotating frame 73 is fixedly connected to the bottom of the rotating shaft 72 to drive a round rod 74 to swing. A round rod 74 is fixedly connected to the top of the rotating frame 73 to drive a mounting frame 75 to swing. The top of the round rod 74 passes through the arc-shaped groove 71 and is fixedly connected to the mounting frame 75 for mounting a second guide rail 76. The second guide rail 76 is fixedly connected to the top of the inner wall of the mounting frame 75. A second linear motor 77 is slidably connected to the outer wall of the second guide rail 76 to drive the laser cutting machine 78 to move. A laser cutting machine 78 is fixedly installed at the bottom of the motor 77 to cut irregular steel plate trusses. A third electric push rod 79 is fixedly installed at the bottom of the worktable 4 to drive the second rack 710 to move. The output end of the third electric push rod 79 is fixedly connected to the second rack 710 to drive the large gear 711 to rotate. The outer wall of the rotating shaft 72 is fixedly fitted with the large gear 711, and the large gear 711 is meshed with the second rack 710 to facilitate the rotation of the rotating shaft 72. A scale bar 712 is provided on the top of the worktable 4, and the scale bar 712 is located outside the arc groove 71. A pointer 713 is fixedly connected to the outer wall of the round rod 74 to facilitate the swing angle of the mounting frame 75, thereby facilitating cutting at different angles.

[0026] Working principle: The irregular steel plate truss is placed on top of the placement frame 21. The first electric actuator 23 is activated to push the push block 24 to move. The push block 24 drives the two moving frames 26 to move in the opposite direction along the limit rod 220 through the connecting rod 25. The moving frames 26 drive the fixed rod 27, the first roller 28, the rotating rod 29, and the second roller 210 to move. The first roller 28 is in contact with the straight end of the truss, and the second roller 210 is in contact with the bend of the truss. When the moving frames 26 move, the third roller 214 will contact the irregular steel plate truss in advance. The inclined ends of the plate truss are engaged, causing the swing frame 211 to swing, which in turn drives the rotating rod 29 to rotate. Simultaneously, the design of the torsion spring 212 ensures that the third roller 214 on one side can stably engage the inclined ends of the irregularly shaped steel plate truss. The rotation of the rotating rod 29 drives the first bevel gear 215 to rotate, which in turn drives the second bevel gear 216 to rotate. Through the clamping strip 218, the second bevel gear 216 rotates, which in turn drives the first bevel gear 215 on the other side to rotate, which in turn drives the rotating rod 29 on the other side to rotate, causing the swing frame 211 on the other side to swing synchronously, thus clamping and fixing the inclined ends of the truss. The retaining ring 219 ensures the stability of the sliding rod 213. The second electric push rod 35 is activated to push the first rack 36 upward. The first rack 36 meshes with the pinion 34, driving the rotating rod 32 to rotate. The rotating rod 32 drives the clamping rod 33 to flip, pressing and fixing the top of the truss, completing all-around clamping. The first linear motor 6 is activated to move along the first guide rail 5, driving the moving plate 1 and the truss... Adjust to the cutting position, start the third electric actuator 79 to push the second rack 710 to move, the second rack 710 meshes with the large gear 711 to drive the rotating shaft 72 to rotate, the rotating shaft 72 drives the rotating frame 73 and the round rod 74 to swing along the arc groove 71, adjust the angle of the mounting bracket 75 by referring to the scale bar 712 with the pointer 713, start the second linear motor 77 to move along the second guide rail 76, drive the laser cutting machine 78 to move, and start the laser cutting machine 78 to perform the cutting operation on the truss at the specified angle and position.

[0027] It is worth noting that in this embodiment, the electrical equipment is a common device in the prior art, and the model used can be customized according to actual usage requirements. The power supply interface of the electrical equipment in this utility model is connected to the power supply system through a switch (not shown in the figure) and a wire (not shown in the figure) to realize its control. The circuits and controls involved are all prior art and are known in the current field, so they will not be described in detail here.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cutting device for processing irregularly shaped steel plate trusses, comprising a movable plate (1), characterized in that: The top of the movable plate (1) is provided with a clamping assembly (2), which includes a placement frame (21). The placement frame (21) is fixedly connected to the top of the movable plate (1), and the top of the placement frame (21) is provided with three sets of movable slots (22). The top of the movable plate (1) is fixedly connected to a first electric push rod (23), the output end of the first electric push rod (23) is fixedly connected to a push block (24), the inner wall of the push block (24) is hinged to a connecting rod (25), one end of the connecting rod (25) is hinged to a movable frame (26), the top of the movable frame (26) is fixedly connected to a fixed rod (27), the top of the fixed rod (27) passes through the bottom of the movable groove (22) and is fixedly connected to a first roller (28), the top of the movable frame (26) is rotatably connected to a rotating rod (29), the top of the rotating rod (29) passes through the bottom of the movable groove (22) and is fixedly connected to a second roller (210).

2. The cutting device for processing irregularly shaped steel plate trusses according to claim 1, characterized in that: The inner wall of the placement frame (21) is fixedly connected to a limiting rod (220), and the limiting rod (220) moves through the side of the movable frame (26).

3. The cutting device for processing irregularly shaped steel plate trusses according to claim 1, characterized in that: The outer wall of the rotating rod (29) is fixedly fitted with a swing frame (211), and the outer wall of the rotating rod (29) is fitted with a torsion spring (212). The two ends of the torsion spring (212) are fixedly connected to the top of the moving frame (26) and the bottom of the swing frame (211), respectively. The inner wall of the swing frame (211) is slidably connected with a sliding rod (213), and the top of the sliding rod (213) passes through the bottom of the movable groove (22) and is fixedly connected with a third roller (214).

4. The cutting device for processing irregularly shaped steel plate trusses according to claim 3, characterized in that: The outer wall of the sliding rod (213) is fixedly fitted with a retaining ring (219), the top and bottom of which are in contact with the top of the inner wall of the placement frame (21) and the top of the swing frame (211), respectively.

5. The cutting device for processing irregularly shaped steel plate trusses according to claim 3, characterized in that: The bottom of the rotating rod (29) rotates through the top of the movable frame (26) and is fixedly fitted with a first bevel gear (215). The inner wall of the movable frame (26) is rotatably connected to a second bevel gear (216), and the second bevel gear (216) meshes with the first bevel gear (215). The inner wall of the placement frame (21) is rotatably connected to a slide rod (217), and the slide rod (217) moves through the side of the movable frame (26). The outer wall of the slide rod (217) is fixedly connected to a locking strip (218). The inner wall of the second bevel gear (216) is provided with a locking groove, and the inner wall of the locking groove is slidably connected to the locking strip (218).

6. The cutting device for processing irregularly shaped steel plate trusses according to claim 1, characterized in that: The top of the movable plate (1) is provided with a pressing assembly (3), the pressing assembly (3) includes a fixed plate (31), the fixed plate (31) is fixedly connected to the top of the placement frame (21), the side of the fixed plate (31) is rotatably connected with a rotating rod (32), the outer wall of the rotating rod (32) is fixedly fitted with a pressing rod (33), the outer wall of the rotating rod (32) is fixedly fitted with a small gear (34), the top of the movable plate (1) is fixedly installed with a second electric push rod (35), the top of the output end of the second electric push rod (35) is fixedly connected with a first rack (36), and the first rack (36) is meshed with the small gear (34).

7. The cutting device for processing irregularly shaped steel plate trusses according to claim 6, characterized in that: The number of clamping components (3) is two, and the two clamping components (3) are symmetrically arranged on both sides of the first electric push rod (23).

8. The cutting device for processing irregularly shaped steel plate trusses according to claim 7, characterized in that: A workbench (4) is provided below the movable plate (1). A first guide rail (5) is fixedly connected to the top of the workbench (4). A first linear motor (6) is slidably connected to the outer wall of the first guide rail (5). The right side of the first linear motor (6) is fixedly connected to the movable plate (1).

9. A cutting device for processing irregularly shaped steel plate trusses according to claim 8, characterized in that: The workbench (4) is provided with cutting components (7) at its top and bottom. The cutting components (7) include an arc-shaped groove (71) at the top of the workbench (4). A rotating shaft (72) is rotatably connected to the bottom of the workbench (4). A rotating frame (73) is fixedly connected to the bottom of the rotating shaft (72). A round rod (74) is fixedly connected to the top of the rotating frame (73). The top of the round rod (74) passes through the arc-shaped groove (71) and is fixedly connected to a mounting bracket (75). The mounting bracket (75) has... A second guide rail (76) is fixedly connected to the top of the inner wall. A second linear motor (77) is slidably connected to the outer wall of the second guide rail (76). A laser cutting machine (78) is fixedly installed at the bottom of the second linear motor (77). A third electric push rod (79) is fixedly installed at the bottom of the worktable (4). A second rack (710) is fixedly connected to the output end of the third electric push rod (79). A large gear (711) is fixedly sleeved on the outer wall of the rotating shaft (72), and the large gear (711) meshes with the second rack (710).

10. A cutting device for processing irregularly shaped steel plate trusses according to claim 9, characterized in that: The workbench (4) is provided with a scale bar (712) on its top, and the scale bar (712) is located outside the arc groove (71). The outer wall of the round rod (74) is fixedly connected with a pointer (713).

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