Workbench of laser processing equipment and laser processing equipment

Abstract

The utility model discloses a working table of laser processing equipment and the laser processing equipment, the working table comprises a main frame, the main frame comprises a frame body and a plurality of strip-shaped mounting plates arranged in the middle of the frame body at intervals; the positioning seat comprises a plurality of supporting blocks which are vertically arranged on the strip-shaped mounting plate, positioning pins are arranged at the tops of the supporting blocks, and the positioning pins are used for being connected with workpieces in an inserted mode; and the pressing and holding mechanism comprises a rotating seat and a pressing and holding arm, the rotating seat is located on at least one side edge of the frame body, the pressing and holding arm can move relative to the rotating seat, and the free end of the pressing and holding arm is provided with a pressing and holding head matched with the positioning pin. Through the positioning pins and the pressing mechanisms on the supporting blocks, the problems that in the laser machining process, adaptability to workpieces of different shapes and materials is poor, and clamping tools need to be frequently replaced are effectively solved, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of laser processing worktable technology, and in particular to a worktable for laser processing equipment and laser processing equipment. Background Technology

[0002] In the field of laser processing technology, it is often necessary to process workpieces with different sizes and shapes. Therefore, a worktable is usually set up to clamp the workpieces and fix them in place.

[0003] However, existing laser processing worktables have limited clamping methods and poor adaptability to workpieces of different shapes and sizes. Traditional clamping methods often require designing clamping fixtures specifically for the overall shape of the workpiece. When processing different workpieces, it is necessary to frequently change clamping fixtures to suit the workpiece, which is time-consuming and labor-intensive. Moreover, frequent changes in clamping fixtures introduce new assembly errors, resulting in insufficient positioning accuracy of the worktable. This leads to significant processing errors after laser cutting, making it difficult to meet the processing requirements of the workpiece and affecting product quality. Utility Model Content

[0004] The main purpose of this utility model is to propose a worktable for laser processing equipment and laser processing equipment, aiming to solve the technical problem that the existing worktable has poor adaptability to different workpieces and requires frequent changes of clamping fixtures.

[0005] To achieve the above objectives, this utility model proposes a worktable for a laser processing equipment, comprising:

[0006] The main frame includes a frame body and multiple strip mounting plates spaced apart in the middle of the frame body;

[0007] The positioning seat includes a plurality of support blocks vertically disposed on the strip mounting plate, and a positioning pin is provided on the top of the support block for insertion with the workpiece.

[0008] The pressing mechanism includes a rotating seat and a pressing arm. The rotating seat is located on at least one side of the frame. The pressing arm is movable relative to the rotating seat. The free end of the pressing arm is provided with a pressing head that cooperates with the positioning pin.

[0009] In one embodiment, the strip mounting plate is provided with a groove, and the bottom of the support block is detachably connected to the groove.

[0010] In one embodiment, at least one side of the frame is provided with a plurality of mounting seats vertically, and the rotating seat is connected to the mounting seats.

[0011] In one embodiment, the pressure arm is rotatably connected to the rotating seat and can be flipped relative to the rotating seat.

[0012] In one embodiment, the pressing arm includes two support arms disposed on both sides of the rotating seat and a pressing rod connected to the support arms, and the pressing head is disposed at one end of the pressing rod.

[0013] In one embodiment, the pressing mechanism further includes a cylinder connected to the rotating seat for driving the rotating seat to rise and fall. The cylinder includes a cylinder body and a piston connected to the mounting base, and the rotating seat is connected to the piston.

[0014] In one embodiment, a baffle is further included, which is disposed on the strip mounting plate and is used to restrict the movement of the workpiece.

[0015] In one embodiment, the distance between two adjacent strip mounting plates is L, which satisfies 130mm≤L≤150mm.

[0016] This application also proposes a laser processing device, including the aforementioned working platform.

[0017] This invention features multiple strip-shaped mounting plates spaced apart in the middle of the main frame. By changing the distance between these plates, the area of ​​the worktable's processable region can be adjusted to accommodate different workpieces. Simultaneously, multiple support blocks are vertically mounted on the strip-shaped mounting plates, and positioning pins on these blocks engage with the workpiece's positioning holes to achieve workpiece positioning. Furthermore, a holding mechanism is provided on the side of the frame. The position of the holding arm can be adjusted by a rotating seat on the holding mechanism, allowing it to fix the workpiece at different angles, accommodating workpieces of various shapes and sizes. Therefore, this worktable not only meets the requirements for high-precision machining positioning and ensures that the workpiece does not shift during laser cutting, but also eliminates the need for frequent changes to clamping fixtures, thus improving production efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the worktable of the laser processing equipment of this application;

[0019] Figure 2 This is a schematic diagram of the structure from another perspective of an embodiment of the worktable of the laser processing equipment of this application;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0021] In the attached diagram: 10-Main frame; 11-Frame body; 12-Strip mounting plate; 120-Slide groove; 20-Positioning seat; 21-Support block; 22-Positioning pin; 30-Pressure holding mechanism; 31-Rotating seat; 32-Pressure holding arm; 320-Support arm; 321-Pressure rod; 33-Pressure holding head; 34-Mounting seat; 35-Cylinder; 40-Baffle. Detailed Implementation

[0022] The solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0023] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0024] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0025] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0026] refer to Figure 1 and Figure 2 As shown, the worktable of the laser processing equipment provided in this embodiment includes:

[0027] The main frame 10 includes a frame 11 and a plurality of strip mounting plates 12 spaced apart in the middle of the frame 11.

[0028] The positioning seat 20 includes a plurality of support blocks 21 vertically disposed on the strip mounting plate 12. The top of the support block 21 is provided with a positioning pin 22, which is used to insert with the workpiece.

[0029] The pressing mechanism 30 includes a rotating seat 31 and a pressing arm 32. The rotating seat 31 is located on at least one side of the frame 11. The pressing arm 32 is movable relative to the rotating seat 31. The free end of the pressing arm 32 is provided with a pressing head 33 that cooperates with the positioning pin 22.

[0030] In this embodiment, the main frame 10 can be integrally formed or welded from cast iron or aluminum alloy. The main frame 10 includes a frame body 11, which can be rectangular, circular, or other shapes. The frame body 11 is placed horizontally to facilitate the placement of workpieces to be processed. Multiple strip-shaped mounting plates 12 are provided inside the frame body 11, spaced apart in the middle of the frame body 11. The length of each strip-shaped mounting plate 12 can be less than or equal to that of the frame body 11. The spacing between adjacent strip-shaped mounting plates allows for the accommodation of workpieces with irregular lower surfaces, thus meeting the placement requirements of workpieces of different sizes while reducing the number of sub-frames and not increasing the cost of manufacturing the work platform. The strip-shaped mounting plates 12 can be fixedly connected to the main frame 10 with bolts, facilitating their disassembly and replacement. Multiple main frames 10 can be horizontally spliced ​​to form a large frame, increasing the laser processing area and accommodating larger workpieces. Support legs can be provided at the four corners of the main frame 10; these legs can be height-adjustable or fixed. Meanwhile, a support section can be provided in the middle of the main frame 10 to prevent deformation of the main frame 10 and ensure the stability of the workbench. For example, the main frame 10 is made of cast iron and is rectangular in shape. Two strip mounting plates 12 are arranged horizontally on the surface of the frame 11, with the same length as the frame 11. Support legs are fixed at the four corners of the main frame 10, and an "I"-shaped support section is provided in the middle, providing good stability and solid support for the entire work platform.

[0031] In this embodiment, the positioning base 20 includes multiple support blocks 21, each of which is a cubic or cylindrical structure made of stainless steel or engineering plastic. Its height is adjustable according to the actual workpiece thickness, preferably ranging from 20mm to 50mm. The support blocks 21 are vertically fixed to the upper surface of the strip mounting plate 12 and can be adjusted in position via threaded holes or dovetail grooves 120, suitable for workpiece arrangements of different specifications. Each support block 21 has a positioning pin 22 at its top. The positioning pin 22 is a standard cylindrical pin, and it is detachably installed using a spring-limiting structure for easy loading and unloading. Before processing, the workpiece is inserted into the positioning pin 22 through a positioning hole at its bottom, thereby achieving precise and repeatable positioning. The height and diameter of the positioning pin 22 are adjusted according to the actual workpiece; preferably, the diameter is Φ6mm to Φ12mm, and the height is 10mm to 30mm.

[0032] In this embodiment, the pressing mechanism 30 includes a rotating seat 31 and a pressing arm 32. Preferably, one rotating seat 31 is provided on each of the two sides of the frame 11. The rotating seat 31 is fixedly installed on the side of the frame 11 and has a bearing assembly inside, allowing the pressing arm 32 to rotate horizontally or vertically relative to the rotating seat 31. The pressing arm 32 is a solid rod-shaped structure with a rectangular or circular cross-section and a length of 200mm to 500mm. The material is preferably aluminum alloy or carbon steel. One end of the pressing arm 32 is connected to the rotating seat 31 by a pin, and the other end is a free end. The free end of the pressing arm 32 is provided with a pressing head 33, which is a rubber-coated stainless steel structure with a rubber layer thickness of 2mm to 5mm, which can effectively prevent scratches on the workpiece surface. The pressing head 33 and the positioning pin 22 are in a relative position to press the workpiece. In addition, a spring return mechanism or a gas spring device can be provided in the middle of the pressing arm 32 to improve the pressing efficiency. To ensure the holding position is fixed, the holding arm 32 is also provided with a locking hole and a knob locking mechanism, which can lock the holding arm at a specified angle.

[0033] In this embodiment, when the workpiece is a flexible or irregular workpiece, the pressing mechanism 30 can be extended to a double-sided pressing structure, or it can be combined with a vacuum adsorption device to form a composite clamping system.

[0034] In this embodiment, when the worktable is in use, the operator first installs the workpiece with the positioning hole onto the positioning pin 22 to achieve precise positioning; then, the clamping arm 32 is rotated so that the clamping head 33 presses down vertically, pressing the upper surface of the workpiece; the clamping arm 32 is fixed by the locking device, thus completing the installation and clamping of the workpiece. The worktable of this application realizes the rapid clamping and replacement of workpieces, improving the efficiency of the processing process, while ensuring high positioning accuracy and stability in the laser processing process; the support block 21 and the positioning pin 22 can be flexibly configured to adapt to workpieces of different shapes and sizes, the clamping arm 32 has a simple structure, does not interfere with the laser head path, and is conducive to system integration.

[0035] Reference Figure 1 As shown, in one embodiment, the strip mounting plate 12 is provided with a groove 120, and the bottom of the support block 21 is detachably connected to the groove 120.

[0036] In this embodiment, a groove 120 is provided on the upper surface of each strip mounting plate 12. There can be multiple grooves 120, and adjacent grooves 120 can be orthogonally or parallelly arranged. The groove 120 can be a through-slot extending through both the upper and lower surfaces of the strip mounting plate 12, or it can be a recessed groove only on the upper surface of the strip mounting plate 12. The length of the groove 120 corresponds to the size of the sub-frame, ensuring that the groove 120 can cover most of the area of ​​the sub-frame to meet the clamping requirements of workpieces of different sizes. The groove 120 can have an "I" or "U" shaped cross-section, with a groove depth generally of 3–8 mm, and the groove width can be designed according to the actual size of the support block 21.

[0037] In this embodiment, the support blocks 21 in the plurality of positioning seats 20 are slidably disposed within the slide groove 120. A connecting portion is protruding from the bottom of the support block 21, the shape of which matches the opening shape of the slide groove 120, allowing it to slide on the slide groove 120. An elastic protrusion or snap-fit ​​structure may be provided on the outer side of the connecting portion, allowing the support block 21 to be fixed in the slide groove 120. A threaded hole may also be provided at the bottom of the support block 21 for fixing it in the slide groove 120 with bolts. The connecting portion ensures the stable fixation of the support block 21 in the working state and also meets the requirements for quick replacement and position adjustment of the support block 21. For example, the slide groove 120 is a through hole penetrating the strip-shaped mounting plate 12, and a threaded hole is provided on the bottom of the support block 21 at a position relative to the slide groove 120. During fixing, the bolt is passed sequentially through the threaded hole, the slide groove 120, and the nut, and the nut is tightened, thus fixing the support block 21 in the slide groove 120.

[0038] In this embodiment, in a single slide groove 120, adjacent support blocks 21 can cooperate to support the workpiece. Support blocks 21 in different slide grooves 120 can also cooperate to fix the workpiece, and support blocks 21 on different strip plates can also cooperate to fix the workpiece. The support blocks 21 and the slide groove 120 are detachably connected, so that the installation and removal of the support blocks 21 do not require complicated tools, greatly improving the efficiency of equipment maintenance and workpiece replacement. The slide groove 120 allows the support blocks 21 to be adjusted in position on the strip mounting plate 12 as needed, better adapting to the clamping requirements of workpieces of different sizes and shapes, while also having good modularity and versatility.

[0039] Reference Figure 1 As shown, in one embodiment, at least one side of the frame 11 is vertically provided with a plurality of mounting seats 34, and the rotating seat 31 is connected to the mounting seats 34.

[0040] In this embodiment, at least one side (preferably the long side) of the frame 11 is vertically provided with a plurality of mounting seats 34 for mounting the rotating seat 31 in the pressing mechanism 30.

[0041] The mounting base 34 is an L-shaped or T-shaped support structure, which can be made of stainless steel plate or aluminum alloy. Each mounting base 34 is fixed to the side of the frame 11 by threaded connection or welding. The mounting bases 34 are spaced apart, generally 2 to 4 in number, depending on the workpiece size or the required number of pressing points. The rotating base 31 is detachably connected to the mounting base 34 by bolts. The connection surface adopts a double locating pin 22 + bolt combination structure to ensure installation accuracy and stability. Preferably, the surface of the mounting base 34 is provided with a set of vertical mounting holes, which allows the rotating base 31 to be finely adjusted in the height direction to adapt to workpieces of different heights or thicknesses.

[0042] More preferably, in order to enable quick replacement or maintenance of the rotating seat 31, the mounting base 34 may also be equipped with a quick-release buckle structure or a plug-in locking block, so that the rotating seat 31 can be disassembled and assembled without tools, thus meeting the needs of modular equipment and rapid maintenance.

[0043] Reference Figure 3 As shown, in one embodiment, the holding arm 32 is rotatably connected to the rotating seat 31 and can be flipped relative to the rotating seat 31.

[0044] In this embodiment, the holding arm 32 and the rotating base 31 are rotatably connected via a rotating shaft connection, allowing the holding arm 32 to rotate relative to the rotating base 31. The holding arm 32 can rotate within a range of 0° to 130° around the rotating shaft of the rotating base 31, switching between holding and releasing states. For example, after use, the holding arm 32 can be flipped to a vertically upward position, creating clearance space for easy workpiece replacement or maintenance. The rotation angle can be physically limited by the limiting structure of the rotating base 31 to prevent damage caused by overtravel. Furthermore, the rotating connection can also be equipped with a locking knob, allowing the operator to manually tighten the locking knob after flipping to the desired angle, thereby fixing the position of the holding arm 32 and improving safety and clamping stability. This gives the holding arm 32 flexible adaptability to various working conditions such as use, retraction, and adjustment, making it particularly suitable for laser processing scenarios that require frequent workpiece changes or where there is a risk of spatial interference.

[0045] Reference Figure 3 As shown, in one embodiment, the pressing arm 32 includes two support arms 320 disposed on both sides of the rotating seat 31 and a pressing rod 321 connected to the support arms 320, and the pressing head 33 is disposed at one end of the pressing rod 321.

[0046] In this embodiment, the pressure arm 32 adopts a split structure, specifically including two arms 320 disposed on both sides of the rotating seat 31, and a pressure rod 321 connected between the arms 320. The pressure head 33 is disposed at one end of the pressure rod 321. The arms 320 are two symmetrically arranged parallel arm structures, respectively connected to the mounting trunnions on both sides of the rotating seat 31, and rotatably connected to the rotating seat 31 by bolts or pins to form a stable flip connection structure. The length is 150mm to 250mm, and the cross-section can be rectangular or T-shaped groove structure for embedding the pressure rod 321 connector. The middle part of the arms 320 can be provided with reinforcing ribs or hole adjustment grooves to improve structural strength and deformation resistance, and adapt to various pressure rod 321 installation methods. The pressure rod 321 is connected between the two arms 320, located at their lower end, and spans the lower part of the arms 320. One end of the pressure rod 321 is fixed to a support arm 320 by a screw or quick-release pin, and the other end extends above the workpiece and is fitted with a pressure head 33. The pressure rod 321 is preferably a round or rectangular solid rod. The pressure rod 321 can be fixedly connected to the support arm 320, or it can be designed as a sliding adjustable structure, extending or retracting along its length via a threaded knob or quick-release buckle to accommodate workpieces of different widths or shapes. The pressure head 33 is located at one end of the pressure rod 321 and can be a composite structure of a metal shell and a rubber buffer layer. The rubber layer thickness is 2mm to 5mm, and the pressure surface is designed as an arc or spherical surface to provide flexible fit and scratch resistance. The pressure head 33 can be connected to the pressure rod 321 via threads, facilitating the replacement of pressure heads of different shapes or materials. For example, a large-area silicone pressure pad can be used for soft materials, while a metal pressure cap can be used for high-hardness workpieces.

[0047] Reference Figure 3 As shown, in one embodiment, the pressing mechanism 30 further includes a cylinder 35 connected to the rotating seat 31 for driving the rotating seat 31 to rise and fall. The cylinder 35 includes a cylinder body and a piston connected to the mounting base 34, and the rotating seat 31 is connected to the piston.

[0048] In this embodiment, the cylinder body is vertically arranged and fixedly connected to the side of the mounting base 34 via a flange structure. The mounting base 34 has multiple pre-set mounting holes to accommodate cylinders 35 of different specifications and their position adjustments. The free end of the piston rod is connected to the bottom of the rotating base 31 via a universal joint or linear connector, so that the linear reciprocating motion of the piston rod can drive the rotating base 31 to move up and down vertically, thereby driving the pressing arm 32 to rise and fall synchronously, thus pressing or releasing the workpiece. During use, the cylinder 35 is controlled by an external air source, and the gas is switched via a solenoid valve. When the piston rod extends, it drives the rotating base 31 and the pressing arm 32 to descend, and the pressing head 33 contacts the workpiece to achieve clamping; when the piston rod retracts, the rotating base 31 rises accordingly, and the pressing head 33 disengages from the workpiece, achieving rapid release.

[0049] Reference Figure 1 As shown, in one embodiment, a baffle 40 is also included. The baffle 40 is disposed on the strip mounting plate 12 and is used to restrict the movement of the workpiece.

[0050] In this embodiment, the baffle 40 is a strip-shaped limiting member, vertically arranged on the strip mounting plate 12. The bottom of the baffle 40 is provided with a fixing hole or a slider structure, which can be connected to the surface of the strip mounting plate 12 by screws, or embedded in the sliding groove 120 on the mounting plate for sliding adjustment. This allows the baffle 40 to be adjusted and locked along the direction of the sliding groove 120, and is suitable for workpieces of various specifications. The surface of the baffle 40 may be provided with an anti-slip texture or a rubber coating to prevent slippage or surface damage between the workpiece and the baffle 40; some baffles 40 may also be provided with V-shaped cuts, stepped structures, etc., to adapt to the edge structure of the workpiece.

[0051] In this embodiment, the workpiece is first roughly positioned by inserting the positioning pin 22 through the positioning hole, then the workpiece is placed against the baffle 40, and subsequently pressed vertically by the holding mechanism 30, thereby achieving all-round limiting and clamping of the workpiece in three directions. Multiple baffles 40 can be flexibly arranged between different strip mounting plates 12 to achieve auxiliary clamping and guiding functions for workpieces of different shapes, irregular edges, or curved surfaces.

[0052] In one embodiment, the distance between two adjacent strip mounting plates 12 is L, which satisfies 130mm≤L≤150mm.

[0053] In this embodiment, the strip mounting plates 12 are evenly arranged along the length of the main frame 10. The distance L between every two strip mounting plates 12, i.e., the distance between the central axes, is limited to the range of 130mm to 150mm, with a preferred value of 140mm. While maintaining the overall rigidity of the frame 11, the load-bearing points are reasonably distributed to prevent the workpiece from sagging or vibrating due to excessive spacing between the strip mounting plates 12, which would prevent the workpiece from being effectively supported.

[0054] This embodiment also provides a laser processing device, including the worktable of the laser processing device described above.

[0055] In this embodiment, the laser processing equipment can perform laser processing on the workpiece on the aforementioned worktable. The laser processing equipment may include a laser emission system, a cooling system, and a control system, etc., and the operator can input processing parameters through the human-machine interface of the control system. The positioning seat 20 and the holding mechanism 30 of the worktable can adapt to workpieces of different shapes and sizes, and the parameters of the laser emission system are adjustable to meet the requirements of different materials and processing techniques.

[0056] The above description is only a part or preferred embodiment of this utility model. Neither the text nor the drawings should limit the scope of protection of this utility model. All equivalent structural transformations made using the content of this utility model specification and drawings under the overall concept of this utility model, or direct / indirect applications in other related technical fields, are included within the scope of protection of this utility model.

Claims

1. A worktable for a laser processing device, characterized in that, include: The main frame includes a frame body and multiple strip mounting plates spaced apart in the middle of the frame body; The positioning seat includes a plurality of support blocks vertically disposed on the strip mounting plate, and a positioning pin is provided on the top of the support block for insertion with the workpiece. The pressing mechanism includes a rotating seat and a pressing arm. The rotating seat is located on at least one side of the frame. The pressing arm is movable relative to the rotating seat. The free end of the pressing arm is provided with a pressing head that cooperates with the positioning pin.

2. The worktable of the laser processing equipment according to claim 1, characterized in that, The strip mounting plate is provided with a sliding groove, and the bottom of the support block is detachably connected to the sliding groove.

3. The worktable of the laser processing equipment according to claim 2, characterized in that, At least one side of the frame is provided with a plurality of mounting seats vertically, and the rotating seat is connected to the mounting seats.

4. The worktable of the laser processing equipment according to claim 3, characterized in that, The pressure arm is rotatably connected to the rotating seat and can be flipped relative to the rotating seat.

5. The worktable of the laser processing equipment according to claim 4, characterized in that, The pressing arm includes two support arms disposed on both sides of the rotating seat and a pressing rod connected to the support arms, and the pressing head is disposed at one end of the pressing rod.

6. The worktable of the laser processing equipment according to any one of claims 3 to 5, characterized in that, The pressing mechanism further includes a cylinder connected to the rotating seat for driving the rotating seat to rise and fall. The cylinder includes a cylinder body and a piston connected to the mounting base, and the rotating seat is connected to the piston.

7. The worktable of the laser processing equipment according to claim 6, characterized in that, It also includes a baffle plate disposed on the strip mounting plate, the baffle plate being used to restrict the movement of the workpiece.

8. The worktable of the laser processing equipment according to claim 7, characterized in that, The distance between two adjacent strip mounting plates is L, which satisfies 130mm≤L≤150mm.

9. A laser processing device, characterized in that, The worktable of the laser processing equipment as described in any one of claims 1 to 8.

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