Sheet metal support cutting workbench
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SUZHOU BAIDA PRECISION MACHINERY
- Filing Date
- 2026-06-25
- Publication Date
- 2026-08-07
AI Technical Summary
[0004]为了解决现有U形钣金支架切割工作台中，外部夹紧方式容易导致薄壁立臂变形、对不同长度支架适应能力差、内撑机构固定安装造成上下料干涉、前后对中手动操作难以保证双侧孔对称度的技术问题，本发明提供了一种钣金支架用切割工作台
通过设置居中机构和夹紧机构，并按照先居中后夹紧的顺序动作，实现了U形钣金支架的前后自动对中和左右同步夹紧，确保工件始终处于放置槽的中央位置，从而保证了两侧立臂上安装孔的对称度和同轴度；同时双向丝杆驱动夹板可精确调节夹持位置，适应不同宽度的U形支架，无需更换夹具，换型效率高；夹板下部设置的挡块随夹板移动并始终遮盖移动槽，有效防止了切割废料落入移动槽内部，避免了卡滞磨损；夹板下端嵌设的转辊与放置槽底面滚动接触，大幅降低了夹板移动时的摩擦力，同时避免了滑动摩擦对工件表面的划伤。
Smart Images
Figure CN122517850A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of sheet metal bracket processing, and specifically discloses a cutting worktable for sheet metal brackets. Background Technology
[0002] Sheet metal brackets are widely used support parts in the automotive, construction machinery, and electronic equipment industries. Among them, U-shaped sheet metal brackets are often used in chassis suspension and equipment fixing due to their advantages such as simple structure and strong load-bearing capacity. These brackets are usually formed by stamping or bending thin plates and have a bottom edge and two vertical arms on both sides. In the manufacturing process of metal cutting and laser cutting equipment such as plasma arc welding machines, the vertical arms of U-shaped sheet metal brackets often need to be thermally processed by laser cutting, plasma cutting, etc., to form mounting holes, weight reduction holes, or irregular contours to meet the needs of subsequent assembly or welding. Because U-shaped brackets have an open internal cavity structure, the side walls of this type of workpiece are thin and the height is large. They are prone to vibration and deformation during cutting, so the requirements for cutting accuracy and hole position consistency are high.
[0003] The existing cutting worktables and positioning fixtures have the following shortcomings when clamping U-shaped sheet metal supports: Currently, U-shaped sheet metal supports are mostly fixed from the outside of the two vertical arms by external clamping. The clamping force can easily cause the thin-walled vertical arms to bend elastically or skew plastically, and it is difficult to correct the outward or inward deformation of the vertical arms after stamping. They have poor adaptability to U-shaped supports of different lengths, and manual adjustment or replacement of fixtures is required when changing the type, which is inefficient. Currently, U-shaped sheet metal supports usually only use a two-sided positioning method, which makes it difficult to ensure that the U-shaped sheet metal support is centered on the worktable, affecting the symmetry of the mounting holes on both sides. Summary of the Invention
[0004] To address the technical problems in existing U-shaped sheet metal bracket cutting workbenches, such as the external clamping method easily causing deformation of thin-walled vertical arms, poor adaptability to brackets of different lengths, interference between loading and unloading caused by the fixed installation of the internal support mechanism, and difficulty in ensuring the symmetry of the holes on both sides during manual operation for front and rear centering, this invention provides a cutting workbench for sheet metal brackets.
[0005] To achieve the above objectives, the present invention provides a cutting workbench for sheet metal brackets, including a workbench surface, a support frame connected to the lower end of the workbench surface, a sliding mechanism connected to one side of the workbench surface, and a laser cutting device slidably connected above the sliding mechanism; A support platform is connected to the middle of the upper end of the worktable. A placement groove is opened at the upper end of the support platform. A U-shaped sheet metal bracket workpiece is placed inside the placement groove. A clamping mechanism is connected to the middle of the lower end of the worktable. The clamping mechanism is used to clamp the two sides of the U-shaped sheet metal bracket workpiece. A centering mechanism is connected to the front and rear sides of the support platform. The centering mechanism is used to fix the U-shaped sheet metal bracket workpiece in the middle of the placement groove. A flipping mechanism is connected to the middle of the upper part of the worktable. The flipping mechanism is used to flip and reset the inner support mechanism. One end of the flipping mechanism is connected to the inner support mechanism. The internal support mechanism includes a housing, with one end of an adjustment block connected to the middle of one side of the housing. A support block is connected to the lower end of the inner wall of the housing, and a dual-axis electric telescopic rod is connected to the upper end of the support block. Both output ends of the dual-axis electric telescopic rod are connected to an internal support plate. The workpiece is coarsely positioned by the support platform and placement slot. Then, the clamping mechanism and centering mechanism constrain the workpiece from the left and right and front and back directions respectively, providing a reference for subsequent precise positioning and cutting. The flipping mechanism can drive the inner support mechanism to flip out during loading and unloading and flip in during cutting. This not only ensures the realization of the inner support function, but also avoids the spatial interference of the fixed inner support mechanism on loading and unloading. The dual-axis electric telescopic rod synchronously drives the inner support plates on both sides to stretch outward and tighten the inner side of the U-shaped bracket arm. Together with the external clamping mechanism, it forms double-sided support, effectively correcting the deformation of the arm and improving the cutting rigidity. The synchronous double-sided support ensures that the workpiece does not deviate.
[0006] Preferably, the clamping mechanism includes a frame, a drive motor is connected to one side of the frame, the output end of the drive motor passes through and extends into the interior of the frame, a drive screw is connected to the output end of the drive motor, the drive screw is configured with bidirectional threads, and movable blocks are threaded to both sides of the outer wall of the drive screw, the upper ends of the two movable blocks extend through to the top of the worktable, and a movable groove is opened at the upper end of the worktable corresponding to the upper ends of the two movable blocks; The bidirectional lead screw structure enables the two moving blocks to move in absolute synchronization, ensuring that the left and right clamping plates clamp towards the center simultaneously, avoiding the asynchronous problems that may occur with two independent cylinders; at the same time, the clamping position can be precisely adjusted by controlling the number of rotations of the motor to adapt to U-shaped brackets of different widths.
[0007] Preferably, the upper ends of the two movable blocks are slidably connected inside the two movable slots, the upper ends of the two movable blocks are connected to clamping plates, the two clamping plates are both located inside the placement slot, the lower part of one side of each of the two clamping plates is connected to a stop block, the upper ends of the two stop blocks are inclined, the lower ends of the two stop blocks are embedded with rotating rollers, and rotating slots are opened below the two stop blocks corresponding to multiple rotating rollers. The multiple rotating rollers are rotatably connected inside multiple rotating slots, and the lower ends of the multiple rotating rollers are in rolling contact with the lower end of the inner wall of the placement slot. The stop block moves with the clamping plate and always covers the moving groove to prevent cutting waste from falling into the moving groove and causing jamming. The rotating roller at the lower end of the stop block makes rolling contact with the bottom surface of the placement groove to reduce friction and ensure smooth and stable clamping action.
[0008] Preferably, the centering mechanism includes two connecting electric telescopic rods. One side of each connecting electric telescopic rod is connected to the front and rear sides of the support platform, respectively. The telescopic ends of the two connecting electric telescopic rods extend through into the placement groove. The output ends of the two connecting electric telescopic rods are connected to a stabilizing plate. One side of each of the two stabilizing plates is embedded with an adjusting roller. Each of the two stabilizing plates has a connecting groove corresponding to multiple adjusting rollers. The multiple adjusting rollers rotate within the multiple connecting grooves.
[0009] Preferably, the flipping mechanism includes a connecting platform located above one of the connecting electric telescopic rods. One end of the connecting platform is connected to one side of the support platform. A fixed plate is connected to the middle of the upper part of the connecting platform. An adjusting block is rotatably connected between the two fixed plates. One end of the adjusting block is connected to one side of the inner support mechanism. A flipping motor is connected to one side of one of the fixed plates. The output end of the flipping motor extends through to one side of the corresponding fixed plate and is connected to one side of the adjusting block.
[0010] Compared with the prior art, the present invention has the following beneficial effects: By setting up a centering mechanism and a clamping mechanism, and following the sequence of centering followed by clamping, the U-shaped sheet metal bracket achieves automatic front-to-back centering and synchronous left-to-right clamping, ensuring that the workpiece is always in the center of the placement slot, thereby guaranteeing the symmetry and coaxiality of the mounting holes on both sides of the upright arm. At the same time, the bidirectional screw-driven clamping plate can precisely adjust the clamping position to adapt to U-shaped brackets of different widths without the need to change fixtures, resulting in high changeover efficiency. The stop block set at the bottom of the clamping plate moves with the clamping plate and always covers the moving slot, effectively preventing cutting waste from falling into the moving slot and avoiding jamming and wear. The rotating roller embedded at the bottom of the clamping plate rolls in contact with the bottom surface of the placement slot, greatly reducing the friction when the clamping plate moves, while also preventing scratches on the workpiece surface caused by sliding friction.
[0011] By setting up a flipping mechanism to drive the inner support mechanism to flip into or out of the opening of the U-shaped sheet metal bracket workpiece, the flipping mechanism flips out to make room during loading and unloading, solving the problem of interference between the fixed inner support mechanism and loading and unloading; during cutting, the flipping mechanism flips in to form double-sided support with the external clamping plate, effectively correcting the outward or inward deformation of the upright arm after stamping, greatly improving the rigidity of the upright arm during cutting, reducing cutting vibration, and improving hole position accuracy; the inner support mechanism adopts a dual-axis electric telescopic rod to synchronously drive the inner support plates on both sides to tighten outward, and with the guide structure of the sliding rod, sliding hole and through hole, it ensures that the inner support plates maintain parallel movement and uniform force application, preventing the upright arm deformation caused by excessive local stress. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention; Figure 2This is a schematic diagram of the connection structure between the sliding mechanism of the present invention and the laser cutting equipment; Figure 3 This is a schematic diagram of the connection structure between the flipping mechanism and the inner support mechanism of the present invention; Figure 4 This is a schematic diagram of the internal structure of the frame and housing of the present invention; Figure 5 This is a schematic diagram of the cooperation structure between the centering mechanism and the clamping mechanism of the present invention; Figure 6 This is a schematic diagram of the mounting structure of the rotating roller of the present invention; Figure 7 This is a schematic diagram of the connection structure of the flipping mechanism of the present invention; Figure 8 This is a schematic diagram of the internal support mechanism of the present invention to avoid the clearance position.
[0013] In the diagram: 1. Workbench; 2. Support frame; 3. Connecting plate; 4. Pallet; 5. Sliding rail; 6. Moving plate; 7. Laser cutting equipment; 8. Support rod; 9. Platform; 10. Placement slot; 11. Frame; 12. Drive motor; 13. Drive screw; 14. Moving block; 15. Moving slot; 16. Clamping plate; 17. Stop block; 18. Rotating roller; 19. Connecting electric telescopic rod; 20. Stabilizing plate; 21. Adjusting roller; 22. Connecting platform; 23. Fixing plate; 24. Adjusting block; 25. Housing; 26. Guide rod; 27. Guide slot; 28. Guide slider; 29. Tilting motor; 30. Support block; 31. Dual-axis electric telescopic rod; 32. Inner support plate; 33. Slide rod; 34. Through hole. Detailed Implementation
[0014] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0015] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.
[0016] like Figures 1-8 A sheet metal bracket cutting workbench is shown, including a workbench 1, a support frame 2 connected to the lower end of the workbench 1, a sliding mechanism connected to one side of the workbench 1, and a laser cutting device 7 slidably connected above the sliding mechanism. A support platform 9 is connected to the middle of the upper end of the worktable 1. A placement groove 10 is opened at the upper end of the support platform 9. The U-shaped sheet metal bracket workpiece is placed inside the placement groove 10. A clamping mechanism is connected to the middle of the lower end of the worktable 1. The clamping mechanism is used to clamp the two sides of the U-shaped sheet metal bracket workpiece. A centering mechanism is connected to the front and rear sides of the support platform 9. The centering mechanism is used to fix the U-shaped sheet metal bracket workpiece in the middle of the placement groove 10. A flipping mechanism is connected to the middle of the upper end of the worktable 1. The flipping mechanism is used to flip and reset the inner support mechanism. One end of the flipping mechanism is connected to the inner support mechanism. The internal support mechanism includes a housing 25. One side of the housing 25 is connected to one end of the adjustment block 24. A support block 30 is connected to the lower end of the inner wall of the housing 25. A dual-axis electric telescopic rod 31 is connected to the upper end of the support block 30. Both output ends of the dual-axis electric telescopic rod 31 are connected to the internal support plate 32. A sliding mechanism is installed on the side edge of the worktable 1. The sliding mechanism carries the laser cutting equipment 7, which can move horizontally along the sliding mechanism. A support table 9 is fixed in the middle of the worktable 1 by bolts. A placement groove 10 extending along the length direction is opened in the center of the upper surface of the support table 9. When the U-shaped sheet metal bracket workpiece is placed in, its bottom fits against the bottom of the groove and the side walls to achieve coarse positioning. During operation, the U-shaped sheet metal bracket workpiece is first placed into the placement slot 10. Then, the centering mechanism is activated to push the workpiece from the front and back directions so that it is centered in the placement slot 10. After the centering action is completed, the clamping mechanism is activated to clamp the outside of the upright arm of the U-shaped sheet metal bracket workpiece from the left and right sides so that the U-shaped sheet metal bracket workpiece is in the middle position of the placement slot 10. The flipping mechanism flips the inner support mechanism into the opening of the U-shaped sheet metal bracket workpiece. The dual-axis electric telescopic rod 31 drives the inner support plate 32 to stretch the inner side of the upright arm outward.
[0017] like Figure 2 As shown: The sliding mechanism includes two connecting plates 3. One end of each connecting plate 3 is connected to one side of the worktable 1. A support plate 4 is connected between the two connecting plates 3. Both sides of the upper end of the support plate 4 are connected to movable slide rails 5. A movable plate 6 is slidably connected to the upper end of the two movable slide rails 5. The upper end of the movable plate 6 is connected to the lower end of the laser cutting equipment 7. A support rod 8 is connected to one side of the lower end of the support plate 4. The movable slide rail 5 is an electrically controlled slide rail, specifically a linear motor module or a servo-driven ball screw slide. The bottom of the movable plate 6 is fixedly connected to the slider of the electrically controlled movable slide rail 5. The outer shell base of the laser cutting equipment 7 is fixed to the upper surface of the movable plate 6 by bolts. The lower end of the support rod 8 is supported on the ground to enhance the rigidity of the support plate 4. When it is necessary to cut holes at different locations, the control system issues a command to drive the electrically controlled moving slide rail 5, so that the moving plate 6 moves precisely in a straight line along the moving slide rail 5, thereby driving the laser cutting equipment 7 to move horizontally, realizing the cutting of different areas of the U-shaped sheet metal bracket workpiece.
[0018] like Figure 3 and Figure 4 As shown: The clamping mechanism includes a frame 11. A drive motor 12 is connected to one side of the frame 11. The output end of the drive motor 12 passes through and extends into the interior of the frame 11. A drive screw 13 is connected to the output end of the drive motor 12. The drive screw 13 is configured with a bidirectional thread. Moving blocks 14 are threaded to both sides of the outer wall of the drive screw 13. The upper ends of the two moving blocks 14 extend through to the top of the worktable 1. Moving slots 15 are opened at the upper end of the worktable 1 corresponding to the upper ends of the two moving blocks 14. The drive motor 12 is a servo motor, the left half of the drive screw 13 has a right-hand thread, and the right half has a left-hand thread; the two moving blocks 14 are respectively engaged with the left-hand and right-hand threads; When the centering mechanism pushes the workpiece to the middle of the placement slot 10, the drive motor 12 rotates forward, driving the lead screw 13 to rotate. Due to the action of the bidirectional thread, the two moving blocks 14 move inward at the same time, driving the clamping plate 16 to clamp the U-shaped sheet metal bracket workpiece arm from the left and right sides. The clamping mechanism can adapt to U-shaped sheet metal bracket workpieces of different widths. No clamps need to be replaced; only the clamping position of the clamping plate 16 needs to be adjusted.
[0019] The upper ends of the two movable blocks 14 are slidably connected inside the two movable slots 15 respectively. The upper ends of the two movable blocks 14 are connected to clamping plates 16. Both clamping plates 16 are located inside the placement slot 10. The lower part of one side of each clamping plate 16 is connected to a stop block 17. The upper ends of the two stop blocks 17 are inclined. The lower ends of the two stop blocks 17 are embedded with rotating rollers 18. Rotating slots are opened below the two stop blocks 17 corresponding to multiple rotating rollers 18. Multiple rotating rollers 18 are rotatably connected inside multiple rotating slots respectively. The lower ends of multiple rotating rollers 18 are in rolling contact with the lower end of the inner wall of the placement slot 10. Each clamping plate 16 has a stop block 17 fixed on the side away from the U-shaped sheet metal support workpiece. The stop block 17 is used to cover the upper opening of the moving groove 15 to prevent slag, dust or small waste generated by laser cutting from falling into the moving groove 15 and to avoid jamming or wear between the moving block 14 and the moving groove 15. When waste or debris generated during the cutting process falls on the stop block 17, the inclined surface allows the waste to slide off automatically under the action of gravity, preventing the waste from accumulating on the stop block 17 and keeping the worktable clean. When the clamping plate 16 moves left and right, the stop block 17 moves with the clamping plate 16 and always covers the top of the moving groove 15, which plays a role in preventing dust and slag. At the same time, the rotating roller 18 rolls on the bottom surface of the placement groove 10, which greatly reduces the friction and makes the clamping plate 16 move smoothly and steadily.
[0020] like Figure 5 and Figure 6 As shown: The centering mechanism includes two connecting electric telescopic rods 19. One side of each connecting electric telescopic rod 19 is connected to the front and rear sides of the support platform 9, respectively. The telescopic ends of the two connecting electric telescopic rods 19 extend through into the placement groove 10. The output ends of the two connecting electric telescopic rods 19 are connected to a stabilizing plate 20. One side of each of the two stabilizing plates 20 is embedded with an adjusting roller 21. Each of the two stabilizing plates 20 has a connecting groove corresponding to the multiple adjusting rollers 21. The multiple adjusting rollers 21 rotate inside the multiple connecting grooves. After the U-shaped sheet metal bracket workpiece is placed in the placement slot 10, the centering mechanism is activated first. The two connecting electric telescopic rods 19 extend simultaneously, pushing the stabilizing plate 20 to contact the ends of the U-shaped sheet metal bracket workpiece from both the front and rear ends. The adjusting roller 21 rolls and contacts the ends of the U-shaped sheet metal bracket workpiece, pushing the U-shaped sheet metal bracket workpiece without scratching the surface. The U-shaped sheet metal bracket workpiece is pushed to the center position of the placement slot 10. After the centering action is completed, the clamping mechanism is activated to clamp left and right.
[0021] like Figure 7 and Figure 8 As shown: The flipping mechanism includes a connecting platform 22, which is located above one of the connecting electric telescopic rods 19. One end of the connecting platform 22 is connected to one side of the support platform 9. Fixed plates 23 are connected to the middle of the upper end of the connecting platform 22. An adjusting block 24 is rotatably connected between the two fixed plates 23. One end of the adjusting block 24 is connected to one side of the inner support mechanism. A flipping motor 29 is connected to one side of one of the fixed plates 23. The output end of the flipping motor 29 extends through to one side of the corresponding fixed plate 23 and is connected to one side of the adjusting block 24. The flipping mechanism is fixed to the side of the support platform 9 via the connecting platform 22. An adjusting block 24 is rotatably connected between the two fixing plates 23. After the centering mechanism and the clamping mechanism complete the positioning of the U-shaped sheet metal bracket workpiece, the flipping motor 29 drives the adjusting block 24 to rotate, flipping the inner support mechanism from the avoidance position into the opening of the U-shaped sheet metal bracket workpiece.
[0022] The upper end of the connecting platform 22 is connected to one side of each of the two fixed plates 23. One end of the guide rod 26 is arc-shaped. One side of each guide rod 26 is provided with a guide groove 27. Guide sliders 28 are slidably connected inside the two guide grooves 27. One end of each guide slider 28 is connected to both ends of the adjusting block 24. To ensure the stability of the inner support mechanism during rotation, an arc-shaped guide rod 26 is fixed on the upper surface of the connecting platform 22. An arc-shaped guide groove 27 is provided on the inner side of the arc section of the guide rod 26. When the rotating motor 29 drives the adjusting block 24 to rotate, the guide slider 28 slides along the arc-shaped guide groove 27, which precisely constrains the rotation path and prevents the inner support mechanism from swaying due to its own weight.
[0023] like Figure 4 As shown: The two output ends of the dual-axis electric telescopic rod 31 extend through to both sides of the housing 25 respectively. The two inner support plates 32 correspond to the two clamping plates 16 respectively. The upper part of one side of one inner support plate 32 and the lower part of one side of the other inner support plate 32 are connected to the sliding rod 33. One end of both sliding rods 33 extends through to the inside of the housing 25. After the flipping mechanism sends the inner support mechanism into the opening of the U-shaped sheet metal bracket workpiece, the dual-axis electric telescopic rod 31 is activated, and the two output ends extend outward synchronously, pushing the inner support plate 32 to move outward until it is in close contact with the inner side of the two upright arms of the U-shaped sheet metal bracket workpiece. The slide rod 33 provides additional guidance to prevent the inner support plate 32 from tilting.
[0024] Sliding holes are provided on both sides of the housing 25 corresponding to the two sliding rods 33, and the two sliding rods 33 are respectively located inside the two sliding holes. A through hole 34 is provided on the support block 30 corresponding to one of the sliding rods 33. The through hole 34 provides clearance for the slide rod 33, avoiding interference with the support block 30. At the same time, the cooperation between the slide rod 33 and the slide hole and through hole 34 forms a stable guide, ensuring that the inner support plate 32 maintains parallel movement during the tightening process, and applies force evenly to the inner side of the U-shaped upright arm, preventing excessive local stress from causing deformation.
[0025] It should be noted that the specific circuit connections and control methods of the actuators and control elements involved in the embodiments of the present invention, such as the drive motor 12, the connecting electric telescopic rod 19, the flipping motor 29, the dual-axis electric telescopic rod 31, the moving slide rail 5, and the laser cutting equipment 7, are all conventional technical means in the art and fall within the scope of existing technology. Those skilled in the art can select appropriate models and perform conventional circuit design or programming control according to actual needs, and their specific working principles and control logic will not be elaborated here.
[0026] Working principle: The U-shaped sheet metal bracket workpiece is placed with its opening facing upward into the placement groove 10 of the support platform 9. The cross section of the placement groove 10 conforms to the bottom of the workpiece, providing bottom support and initial positioning.
[0027] First, the centering mechanism is activated: the two connecting electric telescopic rods 19 extend synchronously, pushing the stabilizing plate 20 to contact the ends of the U-shaped sheet metal bracket workpiece from both the front and rear ends. The adjusting roller 21 rolls to contact the workpiece to avoid scratching it. The U-shaped sheet metal bracket workpiece is then pushed to the center of the placement groove 10, completing the front-to-back centering.
[0028] After centering is completed, the clamping mechanism is activated: the drive motor 12 rotates forward, and the bidirectional drive screw 13 rotates, causing the two moving blocks 14 to move inward synchronously, driving the clamping plate 16 to clamp the outside of the U-shaped sheet metal bracket workpiece from the left and right sides. Since the stroke of the drive screw 13 can be precisely controlled, this mechanism can adapt to U-shaped sheet metal bracket workpieces of different widths without changing the clamps. The stop block 17 at the bottom of the clamping plate 16 moves along with it, always covering the moving groove 15 to prevent waste from falling in. The inclined surface at the top of the stop block 17 allows the waste falling on it to slide off automatically. The rotating roller 18 at the bottom of the stop block 17 rolls in contact with the bottom surface of the placement groove 10 to reduce friction and ensure stable clamping.
[0029] After clamping is completed, the flipping motor 29 drives the adjusting block 24 to rotate, flipping the inner support mechanism 180° from the standby position and entering the opening of the U-shaped sheet metal bracket workpiece. The guide groove 27 of the arc-shaped guide rod 26 cooperates with the guide slider 28 to ensure that the flipping path is accurate and without deviation.
[0030] After the inner support mechanism is in place, the dual-axis electric telescopic rod 31 is activated, and the two output ends extend outward simultaneously, pushing the inner support plate 32 to press against the inner side of the upright arm on both sides of the workpiece. The slide rod 33 passes through the sliding hole of the housing 25 and the through hole 34 of the support block 30 to provide additional guidance and prevent the inner support plate 32 from tilting. At this time, the workpiece is subjected to the bidirectional action of external clamping force and internal support force, and the rigidity of the upright arm is improved, providing stable support for laser cutting.
[0031] The movable plate 6 slides along the movable slide rail 5, driving the laser cutting equipment 7 to move and cut the mounting holes and irregular contours on the workpiece arm. During the cutting process, the inclined surface of the stop block 17 causes the waste material to slide off automatically, keeping the worktable clean.
[0032] After cutting, the dual-axis electric telescopic rod 31 retracts and the inner support plate 32 disengages; the flipping motor 29 reverses, and the inner support mechanism flips and exits; the drive motor 12 of the clamping mechanism reverses, and the clamping plate 16 is released; the connecting electric telescopic rod 19 of the centering mechanism retracts, the stabilizing plate 20 disengages, the processed workpiece is taken out, the next workpiece is placed in, and the cycle is repeated.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.
Claims
1. A cutting workbench for sheet metal brackets, comprising a workbench surface (1), characterized in that, The worktable (1) is connected to a support frame (2) at its lower end. A sliding mechanism is connected to one side of the worktable (1). A laser cutting device (7) is slidably connected above the sliding mechanism. The upper middle part of the worktable (1) is connected to a support platform (9), and the upper end of the support platform (9) is provided with a placement groove (10). The U-shaped sheet metal bracket workpiece is placed inside the placement groove (10). The lower middle part of the worktable (1) is connected to a clamping mechanism, which is used to clamp the two sides of the U-shaped sheet metal bracket workpiece. The front and rear sides of the support platform (9) are connected to a centering mechanism, which is used to fix the U-shaped sheet metal bracket workpiece in the middle of the placement groove (10). The upper middle part of the workbench (1) is connected to a flipping mechanism, which is used to realize the flipping and reset of the inner support mechanism. One end of the flipping mechanism is connected to the inner support mechanism. The inner support mechanism includes a housing (25), one side of which is connected to one end of an adjusting block (24). A support block (30) is connected to the lower end of the inner wall of the housing (25), and a dual-axis electric telescopic rod (31) is connected to the upper end of the support block (30). Both output ends of the dual-axis electric telescopic rod (31) are connected to an inner support plate (32).
2. The cutting workbench for sheet metal brackets according to claim 1, characterized in that, The sliding mechanism includes a connecting plate (3), and there are two connecting plates (3). One end of each connecting plate (3) is connected to one side of the worktable (1). A support plate (4) is connected between the two connecting plates (3). Both sides of the upper end of the support plate (4) are connected to movable slide rails (5). A movable plate (6) is slidably connected to the upper end of the two movable slide rails (5). The upper end of the movable plate (6) is connected to the lower end of the laser cutting equipment (7). A support rod (8) is connected to one side of the lower end of the support plate (4).
3. The cutting workbench for sheet metal brackets according to claim 1, characterized in that, The clamping mechanism includes a frame (11), a drive motor (12) is connected to one side of the frame (11), the output end of the drive motor (12) extends through and into the interior of the frame (11), the output end of the drive motor (12) is connected to a drive screw (13), the drive screw (13) is provided with a bidirectional thread, and moving blocks (14) are threaded to both sides of the outer wall of the drive screw (13), the upper ends of the two moving blocks (14) extend through and above the worktable (1), and a moving groove (15) is provided at the upper end of the worktable (1) corresponding to the upper end of the two moving blocks (14).
4. A cutting workbench for sheet metal brackets according to claim 3, characterized in that, The upper ends of the two movable blocks (14) are slidably connected inside the two movable slots (15), and the upper ends of the two movable blocks (14) are connected to clamps (16). The two clamps (16) are both located inside the placement slot (10). The lower part of one side of the two clamps (16) is connected to a stop block (17). The upper ends of the two stop blocks (17) are inclined. The lower ends of the two stop blocks (17) are embedded with rotating rollers (18). Rotating slots are opened below the two stop blocks (17) corresponding to multiple rotating rollers (18). The multiple rotating rollers (18) are respectively located inside the multiple rotating slots and rotatably connected. The lower ends of the multiple rotating rollers (18) are in rolling contact with the lower end of the inner wall of the placement slot (10).
5. A cutting workbench for sheet metal brackets according to claim 1, characterized in that, The centering mechanism includes two connecting electric telescopic rods (19). One side of each connecting electric telescopic rod (19) is connected to the front and rear sides of the support platform (9), respectively. The telescopic ends of the two connecting electric telescopic rods (19) extend through into the placement groove (10). The output ends of the two connecting electric telescopic rods (19) are connected to a stabilizing plate (20). One side of each of the two stabilizing plates (20) is embedded with an adjusting roller (21). Each of the two stabilizing plates (20) has a connecting groove corresponding to multiple adjusting rollers (21). The multiple adjusting rollers (21) rotate inside the multiple connecting grooves.
6. A cutting workbench for sheet metal brackets according to claim 1, characterized in that, The flipping mechanism includes a connecting platform (22), which is located above one of the connecting electric telescopic rods (19). One end of the connecting platform (22) is connected to one side of the support platform (9). A fixing plate (23) is connected to the middle of the upper end of the connecting platform (22). An adjusting block (24) is rotatably connected between the two fixing plates (23). One end of the adjusting block (24) is connected to one side of the inner support mechanism. A flipping motor (29) is connected to one side of one of the fixing plates (23). The output end of the flipping motor (29) extends through to one side of the corresponding fixing plate (23) and is connected to one side of the adjusting block (24).
7. A cutting workbench for sheet metal brackets according to claim 6, characterized in that, The upper end of the connecting platform (22) is connected to one side of the two fixed plates (23), and a guide rod (26) is connected to one side of each of the two guide rods (26). One end of the guide rod (26) is arc-shaped, and a guide groove (27) is opened on one side of each of the two guide grooves (27). A guide slider (28) is slidably connected inside each of the two guide grooves (27). One end of each guide slider (28) is connected to both ends of the adjusting block (24).
8. A cutting workbench for sheet metal brackets according to claim 1, characterized in that, The two output ends of the dual-axis electric telescopic rod (31) extend through to both sides of the housing (25). The two inner support plates (32) correspond to the two clamping plates (16). The upper part of one side of one inner support plate (32) and the lower part of one side of the other inner support plate (32) are connected to a sliding rod (33). One end of the two sliding rods (33) extends through to the inside of the housing (25).
9. A cutting workbench for sheet metal brackets according to claim 8, characterized in that, The housing (25) has sliding holes on both sides corresponding to two sliding rods (33), and the two sliding rods (33) are located inside the two sliding holes respectively. The support block (30) has a through hole (34) corresponding to one of the sliding rods (33).