Hardware workpiece laser cutting equipment based on positioning structure

Abstract

The invention relates to the field of plate laser cutting, and discloses hardware workpiece laser cutting equipment based on a positioning structure, which comprises a cutting unit, the cutting unit comprises a sword grid workbench, a mounting box body is connected below the sword grid workbench, and a positioning assembly used for adjusting the position of a plate is connected to the mounting box body. A laser cutting unit used for cutting plates is mounted on the mounting box body in a left-right sliding mode, a driving unit is connected to the mounting box body and comprises a support, the support is fixedly connected to the mounting box body, two connecting shafts are mounted on the support in a left-right symmetrical and sliding mode, and a bidirectional moving assembly is jointly connected to the two connecting shafts. The connecting shaft and the positioning assembly are jointly connected with an adjusting assembly. According to the hardware workpiece laser cutting equipment based on the positioning structure, the problem that in the prior art, in the process that a plate is moved to be positioned, scratches are likely to be left on the back face of the plate through a sawtooth-shaped plate on a sword grid workbench, and finally the quality of the hardware workpiece is affected can be effectively solved.

Description

Technical Field

[0001] The invention relates to the field of plate laser cutting, and in particular to a laser cutting device for hardware workpieces based on a positioning structure. Background Art

[0002] The plate laser cutting machine is a device that uses a high-power density laser beam to cut various plate materials. The plate laser cutting machine is mainly composed of three parts: a CNC system, a laser cutting system and a workbench. The workbench is used to place the plate, and the CNC system is used to control the movement of the laser cutting system to facilitate accurate and efficient cutting of the plate. The plate laser cutting machine is widely used in manufacturing, advertising, decoration, aerospace, automobile manufacturing and other fields.

[0003] When mass-producing some hardware workpieces based on sheet metal (such as corner brackets, drawer slides, anti-collision strips, etc.), it is necessary to first use a sheet metal laser cutting machine to accurately cut the large-sized original sheet metal into multiple small-sized workpiece prototypes, and then perform processes such as bending or painting them as needed.

[0004] The following problems exist when cutting plates with a plate laser cutting machine: the workbench used to place plates in the plate laser cutting machine is usually a sword grid workbench, and the sword grid workbench is supported by multiple evenly arranged serrated plates. During work, the waste or workpiece prototypes cut off will eventually fall through the gaps between the serrated plates, thereby keeping the workbench clean and reducing the impact on subsequent cutting operations; however, in the actual operation process, after the plate is placed on the sword grid workbench, it is often necessary to move the plate to position it, so as to ensure the accuracy of the cutting path and improve product quality. In the process of moving the plate, the serrated plate in the sword grid workbench can easily leave scratches on the back of the plate, thereby affecting the quality of the hardware workpieces produced. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a mold processing optimization system based on a rotary punching structure, which can effectively solve the problem in the prior art that, in the process of moving the plate to position it, the serrated plate on the sword grid workbench is prone to leave scratches on the back of the plate, ultimately affecting the quality of the hardware workpiece.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A laser cutting device for hardware workpieces based on a positioning structure, comprising: The cutting unit comprises a sword-grid workbench, and the sword-grid workbench comprises a mounting frame, on which a plurality of serrated plates are evenly fixedly connected at the front and rear, a mounting box is fixedly connected below the mounting frame, a positioning assembly for adjusting the position of the plate is connected to the bottom plate of the mounting box, and a laser cutting unit for cutting the plate is slidably mounted left and right on the mounting box.

[0007] The driving unit includes a support, which is fixedly connected to the bottom plate of the mounting box. Two connecting shafts are symmetrically and slidably installed on the support. The left connecting shaft is rotatably connected to the piston rod of the long-stroke cylinder. The cylinder body of the long-stroke cylinder is rotatably connected to the bottom plate of the mounting box through a connecting seat. A bidirectional moving component is commonly connected to the two connecting shafts, and an adjustment component is commonly connected to the connecting shaft and the positioning component.

[0008] Among them, the bidirectional moving component includes a linkage gear, two of which are symmetrically connected to rotate front and back on the support, and two L-shaped tooth plates meshing with the gears are symmetrically fixedly connected front and back on the connecting shaft. The horizontal section of the L-shaped tooth plate is slidably connected to the support, and the corresponding L-shaped tooth plates on the two connecting shafts are arranged in a centrally symmetrical manner with the axis of the linkage gear as the center of symmetry.

[0009] Furthermore, the positioning assembly includes a U-shaped bracket, which opens downward and has multiple U-shaped brackets evenly arranged front and back. The multiple U-shaped brackets are staggered between the serrated plate, and the two outermost U-shaped brackets are commonly connected to the front and rear positioning modules, and the remaining U-shaped brackets are connected to the horizontal sections. The multiple U-shaped brackets are commonly fixedly connected to the base frame, and the base frame is connected to the bottom plate of the installation box through the support module at the lower end, and multiple baffles corresponding to the U-shaped brackets are fixedly connected to the upper end surface of the base frame near the left end.

[0010] Furthermore, the front and rear positioning modules include a long plate, which are fixedly connected to the two outermost U-shaped brackets at the front and rear, and ear plates are fixedly connected to the end surfaces of the two long plates that are close to each other and close to the left ends. The ear plates are penetrated up and down and fixedly connected with a rotating shaft, and a push plate is connected to the ear plate and the rotating shaft for common rotation. The distance between the push plate and the long plate increases from left to right, and the push plate and the rotating shaft are connected by a torsion spring. A stop block is connected to the U-shaped bracket and is located between the push plate and the long plate for sliding back and forth. The lower end of the stop block passes through the U-shaped bracket and is fixedly connected to the slider, and the slider is connected to the U-shaped bracket for sliding back and forth. The right end of the slider is fixedly connected to a short-stroke cylinder through a spring rod, and the short-stroke cylinder is fixedly connected to the U-shaped bracket.

[0011] Furthermore, the sliding module includes an installation groove, which is through the horizontal section of the U-shaped bracket, and a belt is connected to the installation groove through two symmetrical transmission rollers. A weight block is fixedly connected to the horizontal section above the belt and located on the inner side.

[0012] Furthermore, the supporting module includes an upper connecting seat, which is evenly fixedly connected to the lower end of the longitudinal section of the base frame at front and back, and a plurality of lower connecting seats corresponding to the upper connecting seats are fixedly connected to the bottom plate of the installation box at front and back, the upper connection and the lower connecting seats are hinged through a spring seat, and the lower end of the outer horizontal section of the base frame is fixedly connected to a limiting seat near the center, and the limiting seat consists of a connecting block and two column blocks fixedly connected to the connecting block symmetrically at front and back, and a base corresponding to the limiting seat is fixedly connected to the bottom plate of the installation box, and two waist-shaped grooves are symmetrically opened at the front and back on the base, and the two column blocks are slidably connected in the two waist-shaped grooves.

[0013] Furthermore, the adjustment component includes a push block, both ends of the connecting shaft are fixedly connected with a push block, the push block is symmetrically fixedly connected with a limit plate front and back, the base frame is fixedly connected with a connecting plate near the inner lateral section, the connecting plate is abutted against the push block, and the connecting plate is connected to the lifting module.

[0014] Furthermore, the lifting module includes a trapezoidal block No. 1, which is fixedly connected to the lower end surface of the inner transverse section of the base frame near the center, and two trapezoidal blocks No. 2 are also fixedly connected symmetrically on the left and right sides of the inner transverse section of the base frame, and a trapezoidal block No. 3 is fixedly connected to the lower end surface of the trapezoidal block No. 1 near the left side and the lower end surface of the trapezoidal block No. 2 on the right side.

[0015] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The present invention drives the two connecting shafts to always move synchronously in the same direction or synchronously in opposite directions through the mutual cooperation between the long-stroke cylinder and the two-way moving assembly. During the synchronous movement in the same direction or in opposite directions, the two connecting shafts will drive the push blocks at both ends thereof to first contact the No. 2 trapezoidal block under the base frame, thereby driving the base frame, the U-shaped bracket and the original plate to rise synchronously, lifting the original plate to separate from the serrated plate, and then as the symmetrical push blocks continue to move in the same direction, the right push block will contact the No. 3 trapezoidal block on the right side, thereby driving the right end of the base frame to rise again, thereby making the right ends of the original U-shaped bracket and the original plate higher than the left end, and the original plate slides to the left under the action of its own gravity and the sliding module until it abuts against the baffle to achieve alignment, and then the symmetrical push blocks continue to move in the same direction, The first and second trapezoidal blocks are separated, and the U-shaped bracket descends during this process, and the original plate falls back onto the serrated plate at the positioned position. At this time, the original plate is cut by the laser cutting unit according to the set path. After the cutting is completed, the symmetrical push blocks continue to move in the same direction, first moving to contact with the first trapezoidal block, so that the U-shaped bracket and the remaining plates rise, and then the left push block will contact with the third trapezoidal block on the left during the movement process, so that the U-shaped bracket tilts. Under the action of the sliding module, the remaining plates and the cut workpiece prototypes slide to the right synchronously, so as to realize the functions of automatic positioning and automatic unloading without contacting the original plate with the serrated plate, thereby effectively avoiding the tip of the serrated plate leaving scratches on the back of the original plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of a laser cutting device for hardware workpieces based on a positioning structure of the present invention when cutting a plate; Figure 2 An exploded view of a laser cutting device for hardware workpieces based on a positioning structure of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of a cutting unit and a driving unit in a laser cutting device for hardware workpieces based on a positioning structure of the present invention; Figure 4 It is an exploded view of the structure of the cutting unit and the driving unit in a laser cutting device for hardware workpieces based on a positioning structure of the present invention; Figure 5 For the present invention Figure 4 A partial enlarged view of the middle A; Figure 6 A state change diagram of a driving unit in a laser cutting device for hardware workpieces based on a positioning structure according to the present invention during operation; Figure 7 The present invention is a three-dimensional structural schematic diagram of a U-shaped bracket and a sliding module in a laser cutting device for hardware workpieces based on a positioning structure.

[0018] The numbers in the figure represent: 1, cutting unit; 11, sword fence workbench; 12, positioning assembly; 121, U-shaped bracket; 122, front and rear positioning module; 1221, long board; 1222, push plate; 1223, stop block; 1224, slider; 123, sliding module; 1231, mounting groove; 1232, belt; 1233, weight block; 124, support module; 1241, upper connecting seat; 1242, lower connecting seat ; 1243, limit seat; 1244, base; 125, baffle; 13, laser cutting unit; 2, drive unit; 21, support; 22, connecting shaft; 23, two-way moving assembly; 231, linkage gear; 232, L-shaped gear plate; 24, adjustment assembly; 241, push block; 242, connecting plate; 243, lifting module; 2431, trapezoidal block No. 1; 2432, trapezoidal block No. 2; 2433, trapezoidal block No. 3. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] The present invention will be further described below in conjunction with the embodiments. Example

[0021] See also Figure 1-Figure 7 , a laser cutting device for hardware workpieces based on a positioning structure, comprising: The cutting unit 1 comprises a sword-grid workbench 11, and the sword-grid workbench 11 comprises a mounting frame, on which a plurality of serrated plates for supporting are evenly fixedly connected at the front and rear, a mounting box is fixedly connected below the mounting frame, a positioning assembly 12 for adjusting the position of the plate is connected to the bottom plate of the mounting box, and a laser cutting unit 13 for cutting the plate is slidably installed left and right on the mounting box.

[0022] The driving unit 2 includes a support 21, which is fixedly connected to the bottom plate of the mounting box. Two connecting shafts 22 are symmetrically and slidably installed on the support 21. The left connecting shaft 22 is rotatably connected to the piston rod of the long-stroke cylinder. The cylinder body of the long-stroke cylinder passes through the support 21 and is rotatably connected to the bottom plate of the mounting box through a connecting seat. A bidirectional moving component 23 is commonly connected to the two connecting shafts 22, and an adjustment component 24 is commonly connected to the connecting shaft 22 and the positioning component 12.

[0023] Among them, the bidirectional moving component 23 includes a linkage gear 231, two of which are symmetrically connected to rotate front and back on the support 21, and two L-shaped tooth plates 232 meshing with the gears are symmetrically fixedly connected front and back on the connecting shaft 22. The horizontal section of the L-shaped tooth plate 232 is slidingly connected to the support 21, and the corresponding L-shaped tooth plates 232 on the two connecting shafts 22 are arranged in a centrally symmetrical manner with the axis of the linkage gear 231 as the center of symmetry.

[0024] The positioning assembly 12 includes a U-shaped bracket 121, which opens downward and is evenly arranged in multiple numbers in the front and rear. The multiple U-shaped brackets 121 are staggered between the serrated plate, and the two outermost U-shaped brackets 121 in the front and rear are commonly connected to the front and rear positioning modules 122, and the horizontal sections of the remaining U-shaped brackets 121 are all connected to the sliding modules 123. The multiple U-shaped brackets 121 are commonly fixedly connected to the base frame, and the base frame is connected to the bottom plate of the installation box through the support module 124 at the lower end, and a plurality of baffles 125 corresponding to the U-shaped brackets 121 are fixedly connected to the upper end surface of the base frame near the left end.

[0025] The front and rear positioning module 122 includes a long plate 1221, and the two U-shaped brackets 121 located at the outermost front and rear are fixedly connected to the long plates 1221, and the two long plates 1221 are fixedly connected on the end surfaces close to each other and near the left end. The ear plates are penetrated up and down and fixedly connected with a rotating shaft, and a push plate 1222 is rotatably connected to the ear plates and the rotating shaft together. The distance between the push plate 1222 and the long plate 1221 increases from left to right, and the push plate 1222 and the rotating shaft are connected by a torsion spring. A stop block 1223 is slidably connected to the U-shaped bracket 121 and located between the push plate 1222 and the long plate 1221. The lower end of the stop block 1223 passes through the U-shaped bracket 121 and is fixedly connected to a slider 1224. The slider 1224 is slidably connected to the U-shaped bracket 121 front and back, and the right end of the slider 1224 is fixedly connected to a short-stroke cylinder through a spring rod, and the short-stroke cylinder is fixedly connected to the U-shaped bracket 121.

[0026] The sliding module 123 includes a mounting groove 1231, which is through the horizontal section of the U-shaped bracket 121, and a belt 1232 is connected to the mounting groove 1231 through two symmetrical transmission rollers. A weight block 1233 is fixedly connected to the horizontal section above the belt 1232 and located on the inner side.

[0027] The support module 124 includes an upper connecting seat 1241, which is evenly fixedly connected to the lower end of the longitudinal section of the base frame at front and back, and a plurality of lower connecting seats 1242 corresponding to the upper connecting seat 1241 are fixedly connected to the bottom plate of the installation box at front and back, and the upper connection and lower connecting seats 1242 are hinged through a spring seat, and the lower end of the outer horizontal section of the base frame and close to the center is fixedly connected to a limiting seat 1243, and the limiting seat 1243 consists of a connecting block and two columnar blocks fixedly connected to the connecting block symmetrically at front and back, and a base 1244 is fixedly connected to the bottom plate of the installation box, and two waist-shaped grooves are symmetrically opened at the base 1244, and two columnar blocks are slidably connected in the two waist-shaped grooves.

[0028] The adjusting assembly 24 includes a push block 241, both ends of the connecting shaft 22 are fixedly connected with the push blocks 241, the push blocks 241 are symmetrically fixedly connected with limit plates, a connecting plate 242 is fixedly connected to the lateral section of the bottom frame close to the inner side, the connecting plate 242 is abutted against the push block 241, and the connecting plate 242 is connected with a lifting module 243.

[0029] The lifting module 243 includes a No. 1 trapezoidal block 2431, and the lower end surface of the horizontal section near the inner side of the base frame is fixedly connected to the No. 1 trapezoidal block 2431 near the center, and two No. 2 trapezoidal blocks 2432 are also fixedly connected symmetrically on the left and right sides of the horizontal section near the inner side of the base frame, and the lower end surface of the No. 1 trapezoidal block 2431 near the left side and the lower end surface of the No. 2 trapezoidal block 2432 on the right side are both fixedly connected to a No. 3 trapezoidal block 2433.

[0030] During specific operation, in the initial state, the piston rod of the long-stroke cylinder is in an extended state, the two connecting shafts 22 are far away from each other, the push block 241 abuts against the lower end surface of the connecting plate 242, the height of the horizontal section of the U-shaped bracket 121 is lower than the height of the tip of the serrated plate, the columnar block is located at the lower end of the waist-shaped groove, the weight block 1233 is in a relatively right position on the belt 1232, the piston rods of the two short-stroke cylinders are in a retracted state, the angle between the push plate 1222 and the long plate 1221 is small, and the laser cutting unit 13 is located at the leftmost position on the installation box.

[0031] During production, the original plate to be cut is first placed on the serrated plate through an external lifting device, and then the long-stroke cylinder is started to contract its piston rod, driving the left connecting shaft 22 to move to the right, so that the two L-shaped tooth plates 232 on the left also move to the right, driving the meshing linkage gear 231 to rotate, and the rotation of the linkage gear 231 drives the two L-shaped plates on the right to move to the left, driving the connecting shaft 22 on the right to move to the left synchronously, thereby realizing the same direction movement of the two connecting shafts 22.

[0032] After the two connecting shafts 22 move in the same direction for a distance, they contact the corresponding No. 2 trapezoidal block 2432 at the same time, and move along the inclined surface of the No. 2 trapezoidal block 2432 to its lower end surface. In this process, as the height of the No. 2 trapezoidal block 2432 increases, the height of the base frame and the U-shaped bracket 121 also increases, and the horizontal section of the U-shaped bracket 121 rises to a height higher than the tip of the serrated plate, so that the original plate can be lifted to separate it from the serrated plate.

[0033] Then, as the long-stroke cylinder continues to contract, the two connecting shafts 22 are driven to continue to move in the same direction. In the process of moving to the left, the right connecting shaft 22 will drive the right push block 241 to contact the right trapezoidal block No. 3 2433 and move along its inclined surface to its lower end surface. The left connecting shaft 22 is still located at the lower end surface of the left trapezoidal block No. 2 2432. At this time, the height of the right end of the base frame is higher than the height of the left end of the base frame, so the base frame as a whole will tilt to the left. At this time, under the combined action of the gravity of the weight block 1233 and the gravity of the original plate, the belt 1232 rotates counterclockwise, driving the original plate to move to the left. When the left end of the plate contacts the baffle 125, the movement of the original plate stops, thereby realizing the positioning of the original plate in the left and right directions. At this time, the weight block 1233 is in a relatively left position on the belt 1232.

[0034] After the left end of the original plate abuts against the baffle 125, the two short-stroke cylinders are started at the same time, and the slider 1224 is pushed to the left through its piston rod and spring rod, driving the block 1223 to move to the left as well, thereby increasing the angle between the long plate 1221 and the push plate 1222, and then causing the two push plates 1222 to tilt inward synchronously, pushing the original plate to a position close to the middle, thereby achieving positioning in the front and rear directions.

[0035] After the positioning of the original plate is completed, the piston rod of the long-stroke cylinder continues to contract, driving the two coupling shafts 22 to move in the same direction. During the movement, the right push block 241 first disengages from the right No. 3 trapezoidal block 2433 and moves to the lower end face of the right No. 2 trapezoidal block 2432. The left push block 241 still abuts against the lower end face of the left No. 2 trapezoidal block 2432. At this time, the chassis returns to the horizontal state again. Then, as the coupling shafts 22 continue to move in the same direction, the two push blocks 241 synchronously disengage from the No. 2 trapezoidal block 2432 and move between the No. 2 trapezoidal block 2432 and the No. 1 trapezoidal block 2431. At this time, the push blocks 241 abut against the lower end face of the long plate 1221, and the height of the chassis drops to the initial height. The original plate is again on the serrated plate. At this time, the original plate is cut by the laser cutting machine set 13 according to the set program.

[0036] After the cutting is completed, the piston rod of the long-stroke cylinder continues to contract, driving the coupling shafts 22 and the push blocks 241 to move synchronously along the inclined surface of the No. 1 trapezoidal block 2431 to its lower end face. During this process, the U-shaped bracket 121 rises again to a height higher than the tip of the serrated plate. As the coupling shafts 22 and the push blocks 241 continue to move synchronously, the left push block 241 contacts the left No. 3 trapezoidal block 2433 and moves along its inclined surface to its lower end face. In this state, the U-shaped bracket 121 tilts to the right. Under the combined action of the self-weight of the weight 1233 and the self-weight of the original plate, the belt 1232 rotates clockwise, causing the original to slide off the belt 1232 to the right, thus realizing automatic blanking.

[0037] It should be noted that the above method of positioning the original plate has the following advantages: Advantage 1: After the original plate is placed on the serrated plate and needs to be moved and positioned, the long-stroke cylinder pulls the left coupling shaft 22 to move, driving the right coupling shaft 22 to move synchronously to the left through the L-shaped tooth plate 232 and the linkage gear 231, so as to realize that the push blocks 241 on the two coupling shafts 22 always feed in the same or opposite directions. After the symmetric push blocks 241 move in the same direction and contact the corresponding No. 2 trapezoidal block 2432, they will drive the height of the No. 2 trapezoidal block 2432 to rise, and then drive the height of the original plate to rise through the chassis, the U-shaped bracket 121 and the belt 1232, so that the original plate is separated from the serrated plate. Therefore, when the original plate needs to be moved and positioned later, the original plate will not contact the serrated plate, thus avoiding scratches left by the tip of the serrated plate on the back of the original plate.

[0038] Advantage 2: After the original plate is separated from the serrated plate under the support of the U-shaped bracket 121, as the symmetrical push blocks 241 continue to move in the same direction, the right push block 241 contacts the right trapezoidal block No. 3 2433, so that the U-shaped bracket 121, the belt 1232 and the original plate tilt to the left while being higher than the serrated plate. When the original plate tilts to the left, it will slide to the left under the action of its own gravity. The original plate stops when it slides to the position of the baffle 125. At this time, its left and right positioning is completed, and then the short-stroke cylinder drives the block 1223 to move to the left, so that the two symmetrical push plates 1222 rotate inward synchronously, pushing the original plate to make it centered in the front-to-back direction, thereby realizing the front-to-back positioning.

[0039] Advantage three: During the falling process of the above-mentioned original plate, if the weight of the original plate is small or the angle of inclination to the left is small, the falling may not be carried out normally. A transfer roller and a belt 1232 are set on the U-shaped bracket 121 to solve this problem. When the original plate falls, the belt 1232 runs synchronously with it, and the two remain relatively static, thereby solving the friction problem that may exist between the original plate and the U-shaped bracket when it falls. At the same time, a weight block 1233 is fixedly connected to the inner side of the belt 1232, and the weight block 1233 can ensure that the belt 1232 will always run automatically when it is tilted. The operation of the belt 1232 will further drive the original plate to fall, thereby avoiding the situation where the original plate cannot fall smoothly when it is tilted due to large friction resistance.

[0040] Advantage 4: After the positioning is completed, as the symmetrical push block 241 continues to move in the same direction, it will disengage from the second trapezoidal block 2432 and abut against the connecting plate 242 again. During this process, the U-shaped bracket 121 drops again. Since the process of the push block 241 disengaging from the second trapezoidal block 2432 is first passing through the inclined surface of the second trapezoidal block 2432 and then moving to the lower end surface of the connecting plate 242, it is a continuous and gradual process. Therefore, the original plate will be slowly placed on the serrated plate, and no secondary collision will occur between the two. After that, the positioned plate can be cut by the laser cutting unit 13.

[0041] Advantage 5. After the plate cutting is completed, the symmetrical push blocks 241 continue to move in the same direction. During the movement, the two push blocks 241 first contact the trapezoidal block No. 1 2431, so that the U-shaped bracket 121 and the cut original plate and the prototype workpiece cut and falling on the belt 1232 are synchronously raised to above the serrated plate. Then, as the movement continues, the left push block 241 contacts the trapezoidal block No. 3 2433 on the left, driving the U-shaped bracket 121 to tilt to the right. At this time, under the multiple effects of the belt 1232, the weight block 1233 and the cut original plate, the belt 1232 rotates counterclockwise, driving the cut plate and the prototype workpiece to fall into the external collection device on the right, finally realizing automatic unloading and saving manpower and material resources.

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A laser cutting device for hardware workpieces based on a positioning structure, characterized in that: include: A cutting unit (1), the cutting unit (1) comprising a sword-grid workbench (11), the sword-grid workbench (11) comprising a mounting frame, a plurality of sawtooth-shaped plates being evenly fixedly connected to the mounting frame at the front and rear, a mounting box being fixedly connected below the mounting frame, a positioning component (12) for adjusting the position of the plate being connected to the bottom plate of the mounting box, and a laser cutting unit (13) for cutting the plate being slidably mounted left and right on the mounting box; A drive unit (2), the drive unit (2) comprising a support (21), the support (21) being fixedly connected to the bottom plate of the mounting box, two connecting shafts (22) being symmetrically and slidably mounted on the support (21), the left connecting shaft (22) being rotationally connected to the piston rod of the long-stroke cylinder, the cylinder body of the long-stroke cylinder being rotationally connected to the bottom plate of the mounting box via a connecting seat, the two connecting shafts (22) being commonly connected to a bidirectional moving assembly (23), and the connecting shaft (22) and the positioning assembly (12) being commonly connected to an adjusting assembly (24); The bidirectional moving assembly (23) comprises a linkage gear (231), two linkage gears (231) are symmetrically connected to rotate on the support (21), two L-shaped toothed plates (232) meshing with the gears are symmetrically fixedly connected to the connecting shaft (22), the horizontal section of the L-shaped toothed plates (232) is slidably connected to the support (21), and the corresponding L-shaped toothed plates (232) on the two connecting shafts (22) are arranged in a centrally symmetrical manner with the axis of the linkage gear (231) as the symmetry center.

2. The laser cutting device for hardware workpieces based on the positioning structure according to claim 1 is characterized in that: The positioning assembly (12) comprises a U-shaped bracket (121), the U-shaped bracket (121) is open downward and a plurality of the U-shaped brackets (121) are evenly arranged in front and back, the plurality of U-shaped brackets (121) are arranged in a staggered manner with the sawtooth plate, the two U-shaped brackets (121) located at the outermost sides are connected to a front and rear positioning module (122), the horizontal sections of the remaining U-shaped brackets (121) are connected to a sliding module (123), the plurality of U-shaped brackets (121) are fixedly connected to a base frame, the base frame is connected to a bottom plate of the installation box via a support module (124) at the lower end, and a plurality of baffles (125) corresponding to the U-shaped brackets (121) are fixedly connected to the upper end surface of the base frame and close to the left end.

3. The laser cutting device for hardware workpieces based on the positioning structure according to claim 2 is characterized in that: The front and rear positioning modules (122) include a long plate (1221), and the two U-shaped brackets (121) located at the outermost sides are fixedly connected to the long plates (1221). The two long plates (1221) are fixedly connected to the adjacent end surfaces and the positions close to the left ends. The ear plates are penetrated from top to bottom and fixedly connected to the rotating shaft. The ear plates and the rotating shaft are connected to a push plate (1222) that rotates together. The distance between the push plate (1222) and the long plate (1221) increases from left to right. The push plate (1222) and the rotating shaft are fixedly connected to the ear plates. The shafts are connected via a torsion spring; a stopper (1223) is slidably connected to the U-shaped bracket (121) and is located between the push plate (1222) and the long plate (1221); the lower end of the stopper (1223) passes through the U-shaped bracket (121) and is fixedly connected to a slider (1224); the slider (1224) is slidably connected to the U-shaped bracket (121); the right end of the slider (1224) is fixedly connected to a short-stroke cylinder via a spring rod; the short-stroke cylinder is fixedly connected to the U-shaped bracket (121).

4. The laser cutting device for hardware workpieces based on the positioning structure according to claim 2 is characterized in that: The sliding module (123) comprises a mounting groove (1231), the mounting groove (1231) being through-through and opening in a horizontal section of the U-shaped bracket (121), a belt (1232) being connected in the mounting groove (1231) through two left-right symmetrical transmission rollers, a weight block (1233) being fixedly connected to the upper horizontal section of the belt (1232) and located on the inner side.

5. The laser cutting device for hardware workpieces based on the positioning structure according to claim 2 is characterized in that: The support module (124) comprises an upper connecting seat (1241), wherein a plurality of upper connecting seats (1241) are evenly fixedly connected to the lower end of the longitudinal section of the base frame in the front and rear directions, and a plurality of lower connecting seats (1242) corresponding to the upper connecting seats (1241) are fixedly connected to the bottom plate of the installation box in the front and rear directions, wherein the upper connecting and lower connecting seats (1242) are hingedly connected via a spring seat, and a limiting seat (1243) is fixedly connected to the lower end of the outer horizontal section of the base frame and close to the center, wherein the limiting seat (1243) consists of a connecting block and two columnar blocks fixedly connected to the connecting block in the front and rear directions symmetrically, and a base (1244) corresponding to the limiting seat (1243) is fixedly connected to the bottom plate of the installation box, and two waist-shaped grooves are symmetrically provided on the base (1244) in the front and rear directions, and the two columnar blocks are slidably connected in the two waist-shaped grooves.

6. The laser cutting device for hardware workpieces based on the positioning structure according to claim 1 is characterized in that: The adjustment assembly (24) comprises a push block (241), both ends of the connecting shaft (22) are fixedly connected to the push blocks (241), the push blocks (241) are symmetrically fixedly connected to limit plates in the front and rear, a connecting plate (242) is fixedly connected to the inner transverse section of the bottom frame, the connecting plate (242) is in abutment with the push block (241), and a lifting module (243) is connected to the connecting plate (242).

7. The laser cutting device for hardware workpieces based on the positioning structure according to claim 6 is characterized in that: The lifting module (243) comprises a No. 1 trapezoidal block (2431), the No. 1 trapezoidal block (2431) being fixedly connected to the lower end surface of the inner side transverse section of the base frame near the center, and two No. 2 trapezoidal blocks (2432) being fixedly connected to the inner side transverse section of the base frame symmetrically, and the No. 3 trapezoidal block (2433) being fixedly connected to the lower end surface of the No. 1 trapezoidal block (2431) near the left side and the lower end surface of the No. 2 trapezoidal block (2432) on the right side.

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