A stone slab processing fixing device

Abstract

This utility model discloses a stone slab processing and fixing device, solving the technical problems of stone slab displacement, damage, and high energy consumption caused by traditional fixing methods. It includes an operating table, a processing table surface, and a hollowed-out groove. Buffer limiting devices are provided on the front and left sides of the processing table surface, a pushing and tightening device with a deformation compensation push plate is provided on the right side, a downward pressing and fastening device is provided at the top, and a lifting device and a vacuum suction device are provided at the bottom. The buffer limiting device uses an elastic guiding mechanism and a locking actuator to achieve buffered positioning of the stone slab; the corrugated push plate of the pushing and tightening device adapts to the warping of the stone slab; the downward pressing and fastening device uses a pressure sensor to control the downward pressure in a closed loop; and the vacuum suction cup has independent control of the core and edge suction areas. Through a multi-dimensional collaborative fixing mechanism, the positioning accuracy of the stone slab is significantly improved, the breakage rate of ultra-thin and irregularly shaped stone processing is reduced, and energy consumption and maintenance time are also reduced.

Description

Technical Field

[0001] This utility model relates to the field of stone slab fixing equipment, and in particular to a stone slab processing and fixing device. Background Technology

[0002] Stone slabs are made by chiseling or sawing dense rock. They are often used as cladding materials and are generally made from marble and granite. During the processing, fixing devices are usually used to secure the stone slabs to facilitate the work of the workers.

[0003] In the stone slab processing process (especially the precision carving and cutting of ultra-thin marble, granite, and other decorative stones), traditional fixing techniques have the following industry pain points: 1. Insufficient fixing stability: Conventional mechanical clamping devices directly press the stone slab edges with bolts, which easily leads to stress concentration. Processing vibrations can easily cause stone slab displacement (often by 0.5-1mm), resulting in misalignment of carved patterns or tilting of the cut surface. 2. Risk of surface damage: Vacuum adsorption devices may leak air locally due to the texture or slight unevenness of the stone surface, requiring increased adsorption force for compensation. This can easily leave indentations on the back of the stone slab, especially for stone slabs with a thickness of <5mm, where the damage rate can be as high as 15%-20%. 3. Limited adaptability: Existing pressing mechanisms are mostly rigid structures, which cannot compensate for the natural warping of the stone slab (commonly 0.5°-3° flatness deviation), resulting in local suspension during fixing and easy breakage of the stone slab during processing. 4. Imbalance between energy consumption and efficiency: Traditional vacuum adsorption systems apply uniform negative pressure to the entire plate, but the adsorption capacity utilization rate in the edge area is less than 50%, resulting in energy waste; at the same time, the coordination of multi-dimensional fixing devices is poor, and the material change and debugging time is as long as 10-15 minutes. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art. By combining multi-dimensional fixing technology, the stability and adaptability of stone slab processing are significantly improved, and a stone slab processing fixing device is provided.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model relates to a stone slab processing and fixing device, including an operating table, on which a processing table surface is fixed, and a through-type hollow groove is opened in the middle of the processing table surface.

[0007] The front and left sides of the processing table are provided with buffer limiting devices. The buffer limiting devices include: elastic guide mechanisms symmetrically distributed on both sides of the hollow groove, and a slidable guide block on the top of the elastic guide mechanism; a locking actuator is set between the two elastic guide mechanisms, and the output end of the locking actuator is connected to the positioning component.

[0008] The right side of the processing table is provided with a push-tightening device, which includes two parallel drive cylinders, the output end of which is connected to a push plate with deformation compensation function.

[0009] The processing table is provided with a pressing and fastening device, which includes: a rotatable swing seat, a linear drive mechanism for driving the swing seat, and a pressure arm hinged to the swing seat.

[0010] The bottom of the processing table is equipped with a lifting device, which includes: a lifting spindle driven by a motor, multiple lifting guide shafts, a lifting bracket connected to the lifting spindle, and a position detection unit for detecting the lifting position.

[0011] The lifting device integrates a vacuum adsorption device, which includes an array of vacuum suction cups passing through a hollowed-out groove, and a negative pressure pipeline connected to the vacuum suction cups.

[0012] As a preferred technical solution of this utility model, the elastic guiding mechanism is provided with an elastic buffer rod and a dovetail guide groove, and the elastic buffer rod is slidably connected to the guide block through the dovetail guide groove.

[0013] As a preferred embodiment of this utility model, the drive cylinder is linked by a synchronous controller, and the deformation range of the push plate is 3-8mm.

[0014] As a preferred embodiment of this utility model, a pressure sensor is provided at the end of the pressure arm, and the pressure sensor is electrically connected to the linear drive mechanism to form a pressure feedback closed-loop system.

[0015] As a preferred technical solution of this utility model, the vacuum suction cup is divided into an independently controlled core adsorption area and an edge adsorption area, and the two areas are connected to a negative pressure pipeline through a branch valve.

[0016] As a preferred technical solution of this utility model, the lifting bracket is provided with a spring buffer, and the lifting bracket and the processing table are detachably connected by a flange.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. Impact-resistant and precise positioning: The buffer limit device adopts a combination of "elastic guide mechanism + locking actuator". During the stone slab placement stage, the elastic buffer rod absorbs the impact energy. After locking, the positioning component achieves a positioning accuracy of ±0.1mm, avoiding edge cracking caused by mechanical clamping.

[0019] 2. Adaptive Deformation Compensation: The bellows / spring return type push plate of the pressing device can generate a deformation of 3-8mm, automatically compensating for the flatness deviation of the stone slab of ±3°. With the synchronous controller, it ensures that the thrust deviation of the dual cylinders is <5%, thereby improving the fit of irregularly shaped stone slabs to over 98%.

[0020] 3. Intelligent pressure regulation: The pressure feedback closed-loop system of the pressure fastening device monitors the contact pressure in real time to prevent ultra-thin stone slabs (such as 3mm thick marble) from cracking due to excessive pressure;

[0021] 4. Energy-efficient optimized adsorption: The vacuum suction cup zone control technology allows for independent adjustment of the core and edge zones, reducing energy consumption by 35% while ensuring fixation stability. Furthermore, the response time of the branch valve is less than 0.5 seconds, making it suitable for rapid material change operations. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is the front view of this utility model;

[0025] Figure 3 This is a top view of the present invention;

[0026] Figure 4 This is a side view of the present invention;

[0027] In the diagram: 1. Operating table; 2. Buffer limit device; 3. Pushing device; 4. Downward fastening device; 5. Lifting device; 6. Vacuum adsorption device; 11. Processing table; 12. Hollowed-out groove; 21. Elastic guide mechanism; 22. Locking actuator; 23. Positioning component; 24. Elastic buffer rod; 25. Dovetail guide groove; 26. Guide block; 31. Drive cylinder; 32. Push plate; 41. Swing seat; 42. Linear drive mechanism; 43. Pressure arm; 44. Pressure sensor; 51. Motor; 52. Lifting spindle; 53. Lifting guide shaft; 54. Lifting bracket; 55. Position detection unit; 56. Spring buffer; 57. Flange; 61. Vacuum suction cup; 62. Negative pressure pipeline; 63. Diverter valve; 611. Core adsorption area; 612. Edge adsorption area. Detailed Implementation

[0028] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0029] In the attached diagram, all identical reference numerals refer to the same components.

[0030] like Figure 1-4 As shown, this utility model provides a stone slab processing fixing device, the main connection structure of which is as follows:

[0031] The operating table 1 is connected to the processing table 11: The operating table 1 is a welded steel frame structure, and the top is fixed to the processing table 11 with bolts. A through-hole groove 12 is opened in the middle of the processing table 11, and the width of the groove is 1 / 3 to 1 / 2 of the width of the stone slab. The processing table 11 has mounting bosses on its edges. The front and left sides are fixed with buffer limiting devices 2 with bolts, and the right side is fixed with a pushing device 3 with bolts. The top is suspended by a fixed bracket and the bottom is connected to a lifting device 5 with a flange 57.

[0032] The buffer limiting device 2 has the following connection structure: Elastic guide mechanisms 21 are symmetrically distributed on both sides of the hollowed-out groove 12. Each side includes: an elastic buffer rod 24, vertically installed at the bottom of the processing table 11, with the bottom connected to the guide block 26 via a sliding bracket, and a compression spring sleeved around the outer periphery of the rod; and a dovetail guide groove 25, fixed to the upper surface of the processing table 11, forming a sliding pair with the dovetail protrusion at the bottom of the guide block 26, with the sliding direction perpendicular to the stone slab feeding direction. The locking actuator 22 is horizontally positioned between the two elastic guide mechanisms 21, its body fixed above the processing table 11 by bolts, and its output end threadedly connected to the positioning component 23, with a rubber buffer layer attached to the working surface of the positioning component 23.

[0033] The push-tightening device 3 has the following connection structure: Drive cylinders 31 are installed in pairs in parallel. The cylinder base is fixed to the right edge of the machining table 11 via a mounting plate with elongated holes. The piston rod end is bolted to the push plate 32. The push plate 32 employs an elastic pad compensation structure: one end of the elastic pad is fixed to the cylinder connecting seat, and the other end is bolted to a flat push head. A high-friction coefficient silicone pad is adhered to the surface of the push head. Alternatively, the push plate 32 uses a spring return structure, with the spring sleeved on the outside of the piston rod, and both ends abutting against the cylinder end cap and the back of the push plate, respectively. A floating connection mechanism (including a spherical washer and a disc spring) is provided between the push plate 32 and the drive cylinder 31, allowing the push plate 32 to adaptively deflect within a range of ±5°.

[0034] The downward clamping device 4 has the following connection structure: the swing seat 41 is mounted on the side of the processing table 11, and the swing angle is controlled by the linear drive mechanism 42. The linear drive mechanism 42 is vertically mounted on the bottom of the swing seat 41, and the base is connected to the swing seat 41 through a hinged support. The output end is hinged to the pressure arm 43 through a connecting rod. The pressure arm 43 has a U-shaped lever structure: the fulcrum is hinged to the swing seat 41 through a pin; the end integrates a pressure sensor 44.

[0035] The lifting device 5 has the following connection structure: The lifting main shaft 52 vertically penetrates the frame of the operating table 1, with its lower end connected to the drive motor 51 via a belt and synchronous pulley, and its upper end connected to the lifting bracket 54 via threads. Four lifting guide shafts 53 are symmetrically distributed around the main shaft 52. The lower end of the guide shafts 53 is fixed to the base of the operating table 1, and the upper end passes through the linear bearings at the four corners of the lifting bracket 54, forming a sliding guide. The lifting bracket 54 has a rectangular frame structure: a mounting plate is welded in the middle of the frame to fix the vacuum adsorption device 6; the top is connected to the processing table surface 11 via a flange 57, with a positioning pin on the flange mating surface; a spring buffer 56 is installed at the top, and the bottom of the buffer is bolted to the lifting bracket 54. The position detection unit 55 has a built-in magnetic scale, with the scale body fixed to the side of the lifting guide shaft 53 and the reading head installed on the lifting bracket 54.

[0036] Vacuum adsorption device 6 connection structure: Vacuum suction cups 61 are arranged in an array on the mounting plate of the lifting bracket 54. The bottom of the suction cups is connected to the negative pressure pipeline 62 via flexible hoses, and the hose interfaces are quick-connect seals. A branch valve 63 is integrated into the negative pressure pipeline 62: the valve body input end is connected to a vacuum pump; the two output ends are connected to the core adsorption area 611 (the central area of ​​the suction cup) and the edge adsorption area 612 (the outer periphery of the suction cup) respectively via independent pipelines; the valve core is electromagnetically driven to switch the gas path. The main line of the negative pressure pipeline 62 is arranged along the side of the lifting bracket 54 and fixed with clamps. The branch lines use flexible corrugated pipes to connect to the suction cups, and pressure detection interfaces are provided at the branch points of the pipeline.

[0037] The method of using this utility model is as follows:

[0038] 1. Stone slab placement: The stone slab is pushed in along the dovetail guide groove 25 of the elastic guide mechanism 21. After the guide block 26 is squeezed by the stone slab, it compresses the elastic buffer rod 24. The buffer rod spring absorbs the impact energy.

[0039] 2. Positioning and locking: The locking actuator 22 drives the positioning component 23 to move laterally. After contacting the edge of the stone slab, the flexible buffer layer prevents hard collisions.

[0040] 3. Pushing and pressing: The drive cylinder 31 advances synchronously, the push plate 32 compensates for the unevenness of the stone slab surface through the deformation of the corrugated pipe, and the silicone pad increases the lateral friction.

[0041] 4. Vacuum adsorption: The branch valve 63 prioritizes supplying pressure to the core adsorption area 611, and the elastic material of the suction cup 61 deforms and adheres to the bottom surface of the stone slab. The edge adsorption area 612 then supplements the adsorption.

[0042] 5. Pressing down and fixing: The swing seat 41 rotates to align the pressure arm 43 with the center of the stone slab, the linear drive mechanism 42 pushes the pressure arm 43 down, and the pressure sensor 44 dynamically adjusts the downward pressure;

[0043] 6. Lifting adjustment: The drive motor 51 drives the bracket 54 to move vertically through the lifting main shaft 52, the guide shaft 53 restricts horizontal deviation, and the spring buffer 56 absorbs the impact of emergency stop.

[0044] This utility model is a stone slab processing and fixing device. Through the elastic guiding mechanism of the buffer limiting device and the locking actuator working together for positioning, the deformation compensation push plate of the pushing device adaptively fits the curved surface of the stone slab, the pressure closed-loop precise control of the downward fastening device, and the partitioned gradient adsorption of the vacuum adsorption device combined with the buffer lifting of the lifting device, the stone slab is dynamically and stably fixed in multiple dimensions, which effectively improves the processing accuracy and reduces the risk of breakage of ultra-thin / irregularly shaped stone.

[0045] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A stone slab processing fixture comprising an operating table (1), characterized in that, The operating table (1) has a processing table surface (11) fixed on its surface, and a through-hole groove (12) is opened in the middle of the processing table surface (11); the processing table surface (11) is provided with a buffer limiting device (2) on the front and left sides, the buffer limiting device (2) includes: elastic guide mechanisms (21) symmetrically distributed on both sides of the through-hole groove (12), and a sliding guide block (26) is provided on the top of the elastic guide mechanism (21); a locking actuator (22) is provided between the two elastic guide mechanisms (21), and a positioning component (23) is provided at the output end of the locking actuator (22); a pushing device (3) is provided on the right side of the processing table surface (11), the pushing device (3) includes: two parallel driving cylinders (31), and the output end of the driving cylinders (31) is connected to a push plate (32) with deformation compensation function; the processing A pressing and fastening device (4) is provided above the table (11). The pressing and fastening device (4) includes: a rotatable swing seat (41), a linear drive mechanism (42) for driving the swing seat (41), and a pressure arm (43) hinged to the swing seat (41). A lifting device (5) is provided at the bottom of the processing table (11). The lifting device (5) includes: a lifting spindle (52) driven by a motor (51), multiple lifting guide shafts (53), a lifting bracket (54) connected to the lifting spindle (52), and a position detection unit (55) for detecting the lifting position. A vacuum adsorption device (6) is integrated on the lifting device (5). The vacuum adsorption device (6) includes: an array of vacuum suction cups (61) passing through the hollow groove (12), and a negative pressure pipeline (62) connected to the vacuum suction cups (61).

2. A stone slab processing fixture according to claim 1, wherein The elastic guide mechanism (21) is provided with an elastic buffer rod (24) and a dovetail guide groove (25). The elastic buffer rod (24) is slidably connected to the guide block (26) through the dovetail guide groove (25).

3. The stone slab processing fixture of claim 1, wherein The drive cylinder (31) is linked by a synchronous controller, and the deformation range of the push plate (32) is 3-8mm.

4. The stone slab processing fixture of claim 1, wherein The pressure arm (43) is equipped with a pressure sensor (44) at its end. The pressure sensor (44) is electrically connected to the linear drive mechanism (42) to form a pressure feedback closed-loop system.

5. The stone slab processing fixture of claim 1, wherein The vacuum suction cup (61) is divided into an independently controlled core adsorption area (611) and an edge adsorption area (612), and the two areas are independently connected to the negative pressure pipeline (62) through a branch valve (63).

6. The stone slab processing fixture of claim 1, wherein A spring buffer (56) is provided on the lifting bracket (54), and the lifting bracket (54) and the processing table (11) are detachably connected by a flange (57).

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