A cutting clamp and cutting process for large PC sheets

Abstract

The present invention relates to the field of PC sheet processing technology, specifically, to a cutting clamp and cutting process for large PC sheets, including a clamping slide, the clamping slide is located above the assembly platform, a clamping group is provided on the outer wall of one side of the clamping slide, the clamping group is composed of a plurality of clamping platform groups, propulsion components are installed on both sides of the clamping slide, and the surfaces of the two first extension platforms and the surface of the central workbench are provided with suspended sliding structures. The present invention provides a suspended sliding structure on the central workbench and the first extension platform surface of the assembly platform, so that the sheet can be fed through the "air flotation + ball" double suspension structure, reducing the friction coefficient between the sheet and the assembly platform when the sheet moves and feeds on the assembly platform surface. The clamping group on the clamping slide adopts a differentiated density layout to form a stable clamping force in the clamp cavity, effectively reducing the sliding of the sheet during the cutting process. At the same time, the clamping platform group on the sparse side can provide a buffer space for the sheet during the cutting process.

Description

Technical Field

[0001] The present invention relates to the technical field of PC plate processing, and in particular to a cutting clamp and a cutting process for large PC plates. Background Art

[0002] As demand for high-performance, large-size engineering plastic sheets continues to grow in the construction, transportation, and industrial manufacturing sectors, large-scale PC (polycarbonate) sheets with excellent transparency, impact resistance, and weather resistance are increasingly being used in various fields. However, traditional processes face many technical challenges when processing these heavy-duty sheets, which are typically 30-35 cm thick, large in size, and have smooth surfaces.

[0003] In the feeding process, large PC sheets have a large mass and low surface friction coefficient. The traditional method of pushing by friction often causes feeding jams or trajectory deviations, seriously affecting the processing cycle and positioning accuracy. In terms of clamping and positioning, the traditional symmetrical clamping structure is difficult to adapt to the uneven force on the sheet in multiple directions, which can easily cause slippage or clamping failure. Rigid components such as metal clamps directly contact the sheet surface, which is very easy to cause scratches or indentations.

[0004] Debris, dust and other debris generated during the processing will be embedded in the slide rail when the clamping component reciprocates, causing the equipment to operate poorly or even get stuck. In addition, the existing clamping mechanism and pushing mechanism mostly operate independently and lack linkage logic, which not only reduces production efficiency but may also cause system failures due to action conflicts. In view of this, there is an urgent need for a large-scale PC sheet cutting clamp and cutting process to solve the above problems. Summary of the Invention

[0005] The present invention provides a cutting clamp and cutting process for large PC sheets. It drives the clamping slide to move precisely through a "screw drive + guide" propulsion component, and cooperates with the differentiated layout of the clamping table group with double pressure plates for opposite clamping, so that large PC sheets can be stably clamped during the cutting process and internal stress can be effectively released, so as to achieve damage-free positioning and cutting of the sheets in high-precision processing scenarios, thereby solving the problems raised in the above-mentioned background technology.

[0006] That is, in the PC sheet cutting process, the traditional process has problems such as the feeding link is prone to jamming and deviation, the clamping and positioning are prone to failure and damage to the sheet surface, and the lack of linkage between the clamping and pushing mechanisms leads to low efficiency and system failure.

[0007] To achieve the above objectives, one of the objectives of the present invention is to provide a clamping member for cutting large PC sheets, comprising a clamping slide, the clamping slide being located above a group platform, the group platform comprising a central workbench, one side of the central workbench being connected to two first extension platforms, and an end of the central workbench away from the first extension platforms being connected to two second extension platforms;

[0008] A cutting tool groove is provided on the surface of the central workbench, and a tool body is slidingly provided inside the cutting tool groove. A clamping group is provided on the outer wall of one side of the clamping slide, and the clamping group is composed of multiple clamping platform groups. Propulsion components are installed on both sides of the clamping slide. Under the action of the propulsion component, the clamping slide can slide on the surface of the group to push the PC sheet clamped on one side in multiple clamping platform groups toward the tool body.

[0009] The surfaces of the two first extension platforms and the surface of the central workbench are both provided with a suspension structure. When the plate slides toward the tool body, the suspension structure is used to assist in lifting the plate so that it floats and slides on the surface of the assembly platform.

[0010] In the above technical solution, because large PC sheets are heavy and their surfaces are easily damaged, traditional support methods will lead to large friction resistance and difficulty in feeding. At the same time, the sheets are easily scratched or offset due to friction during movement. By setting a suspended sliding structure on the surface of the first extension table and the central workbench, the composite friction reduction mechanism of "air flotation + ball bearing" is used to assist in lifting the sheet so that it can float and slide on the surface of the assembly table. This can greatly reduce friction resistance and reduce surface damage caused by direct contact between the sheet and the table surface. At the same time, it ensures that the sheet maintains a smooth trajectory when it is pushed toward the tool body, thereby improving feeding accuracy and efficiency, and coordinating the propulsion assembly and the clamping group to achieve low-damage, high-precision processing of large PC sheets.

[0011] Furthermore, extension plates are fixedly mounted on the other side of the clamping bases, each with a scraper fixed on its surface. As the clamping table assembly moves toward the tool body, the push-down plate pushes debris from the track groove forward. After the cutting task is completed, the extension plate removes any remaining debris from the clamping table assembly's sliding track during its return journey. This dual-stage forward and return cleaning mechanism prevents debris accumulation.

[0012] As a further improvement to this technical solution, both the lower push plate and the upper pressure plate are coated with an elastic coating on their surfaces near the clamping cavity. This achieves "soft-contact clamping," ensuring sufficient clamping force while avoiding direct indentations or scratches on the PC sheet surface. This is particularly suitable for applications requiring optical-grade PC sheet materials with extremely high demands on appearance quality.

[0013] A second object of the present invention is to provide a cutting process for large PC sheets, using the above-mentioned large PC sheet cutting clamp, including the following method steps:

[0014] S1. First, place the PC sheet to be cut on the central workbench and the first extension table of the assembly table, aligning the area to be cut with the cutting tool groove. Start the fan of the suspension structure and deliver air to the air flotation chamber through the connecting pipe, so that the balls form a double suspension effect in the suspension plate, reducing the friction coefficient between the sheet and the table surface.

[0015] S2. Start the drive motor, and drive the clamping slide to slide along the assembly platform through the screw rod, so that the clamping platform is aligned with the side of the plate. Then start the drive cylinder, and the piston rod pushes the connecting piece, so that the upper pressure plate and the lower push plate slide in opposite directions, clamping the plate in the clamping cavity;

[0016] S3. Utilize the density difference of the clamping table groups at both ends of the clamping slide to achieve differentiated and stable clamping of the plate. The dense side resists sliding, and the sparse side buffers internal stress. During the clamping process, the propulsion assembly and the clamping table group are linked, and the push-down plate moves synchronously to assist in lifting the plate.

[0017] S4, start the tool body and cut the clamped PC sheet along the cutting tool groove;

[0018] S5. After the cutting is completed, the driving cylinder starts again to release the plate, and the suspension structure continues to maintain the suspension state to assist the plate to be withdrawn.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] This is a fixture for cutting large PC sheets and its cutting process. By setting up a suspension structure on the central worktable and the first extension table of the assembly table, the sheet can be fed through the "air flotation + ball bearing" dual suspension structure. During operation, air is injected into the air flotation cavity to slightly suspend the sheet, and the rolling of the balls reduces the friction coefficient between the sheet and the assembly table when it moves and feeds on the assembly table. The operator can feed the sheet with almost no additional thrust, which greatly improves the convenience and accuracy of feeding and reduces the risk of scratches caused by surface friction.

[0021] In addition, the clamping groups on the clamping slide adopt a differentiated density layout, with a dense number of clamping groups on one end and a sparse number on the other end. Each group drives the upper pressure plate and the lower push plate to slide in opposite directions through the driving cylinder, forming a stable clamping force in the clamping cavity, effectively reducing the slippage of the plate during the cutting process. At the same time, the clamping group on the sparse side can provide a buffer space for the plate during the cutting process.

[0022] During the clamping process, the push-down plate rises synchronously to lift the plate to achieve further limiting and support. In addition, the extension plate and scraper on the outside of the clamp seat move synchronously with the clamping slide, which can push away the debris on the sliding track of the clamp group, play a self-cleaning function, and reduce the jamming or malfunction of the slide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the surface structure of the center workbench of the present invention;

[0025] Figure 3 This is a schematic diagram of the installation of the suspension structure of the present invention;

[0026] Figure 4 For the present invention Figure 3 Schematic diagram of the structure at A;

[0027] Figure 5 is a schematic diagram of the surface structure of the second extension platform of the present invention;

[0028] Figure 6 For the present invention Figure 5 Schematic diagram of the structure at B;

[0029] Figure 7 This is a schematic diagram of the PC board clamping and driving structure of the present invention;

[0030] Figure 8 It is a structural schematic diagram of the clamping platform assembly of the present invention;

[0031] Figure 9 It is a schematic diagram of the overall side and rear structure of the present invention;

[0032] Figure 10 For the present invention Figure 9 Schematic diagram of the structure at point C.

[0033] The meaning of each number in the figure is:

[0034] 1. Clamping slide; 10. Assembly platform; 11. Center workbench; 12. Clamping group; 121. Clamping platform group; 13. First extension platform; 14. Cutting tool channel; 15. Second extension platform; 16. Tool body;

[0035] 2. Propulsion assembly; 21. Lateral plate; 22. Slide support; 23. Propulsion chamber; 24. Screw; 25. Drive motor;

[0036] 3. Suspension structure; 31. Table body; 32. Suspension plate; 33. Air flotation chamber; 34. Ball bearing; 35. Connecting pipe;

[0037] 4. Driving cylinder; 41. Clamping seat; 42. Connecting piece; 43. Lower push plate; 44. Upper pressing plate; 45. Clamping cavity; 46. Covering layer;

[0038] 5. Material cleaning channel; 51. Material discharge chute;

[0039] 6. Extension plate; 61. Scraper. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only 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 any creative efforts shall fall within the scope of protection of the present invention.

[0041] Example 1: Please refer to Figure 1-Figure 2 As shown, the present embodiment aims to provide a clamping member for cutting large PC sheets, including a clamping slide 1, the clamping slide 1 being located above a group platform 10, the group platform 10 including a central workbench 11, one side of the central workbench 11 being connected to two first extension platforms 13, and one end of the central workbench 11 away from the first extension platforms 13 being connected to two second extension platforms 15;

[0042] A cutting tool groove 14 is provided on the surface of the central workbench 11, and a tool body 16 is slidably provided inside the cutting tool groove 14. A clamping group 12 is provided on the outer wall of one side of the clamping slide 1. The clamping group 12 is composed of multiple clamping platform groups 121. A propulsion component 2 is installed on both sides of the clamping slide 1. Under the action of the propulsion component 2, the clamping slide 1 can slide on the surface of the group platform 10 and propel the PC sheet clamped on one side in the multiple clamping platform groups 121 toward the tool body 16.

[0043] The surfaces of the two first extension platforms 13 and the surface of the central workbench 11 are both provided with a suspension structure 3. When the plate slides toward the tool body 16, the suspension structure 3 is used to assist in lifting the plate so that it floats and slides on the surface of the assembly platform 10.

[0044] The operating principle of the tool body 16 is well known to people in this technical field. The tool body 16 is guided by the slider and the guide rail of the cutting tool groove 14 on the central workbench 11. The servo motor provides power through a synchronous belt or a screw drive to convert the rotational motion into a linear motion. During operation, the encoder monitors the displacement in real time and combines with the PLC program to achieve precise control of speed and position. It is linked with the clamping slide 1 through the sensor to ensure that the speeds of the two are matched during cutting. At the same time, the limit switches at both ends of the groove and the internal air pressure sensor constitute a safety protection mechanism to prevent malfunctions caused by collisions with the tool and jamming of debris. It should be noted that a tool starting area is provided on the surface of the assembly table 10. When the tool body 16 stays in the tool starting area, it does not interfere with the clamping operation and feeding movement of the plate.

[0045] After the plate to be cut is placed, one side of the plate needs to be clamped for subsequent pulling and cutting operations. During this process, the clamping group 12 needs to slide to the side end of the plate under the drive of the propulsion component 2. The specific structure of the propulsion component 2 is disclosed below. The propulsion component 2 includes a slide support 22 fixedly connected to the side end of the clamping slide 1. The side wall of the assembly 10 is fixedly installed with a lateral vertical plate 21, and a propulsion chamber 23 is formed inside the lateral vertical plate 21. The side of the slide support 22 away from the clamping slide 1 is located inside the propulsion chamber 23, and the internal rotation of the propulsion chamber 23 is provided with a screw rod 24. A drive motor 25 is fixedly installed on one side of the lateral vertical plate 21, and the output shaft of the drive motor 25 is fixedly connected to the rotating shaft of the screw rod 24. The slide support 22 is located on the side inside the propulsion chamber 23 and is movably connected to the surface of the screw rod 24.

[0046] See Figure 7 As shown, the propulsion component 2 adopts a combination structure of "screw 24 transmission + guide", and its working principle is based on the motion conversion characteristics of spiral transmission. Specifically, the output shaft of the driving motor 25 is rigidly connected to the rotating shaft of the screw 24 through a coupling, and both ends of the screw 24 are supported in the propulsion chamber 23 by deep groove ball bearings to ensure rotation accuracy. When the screw 24 rotates, the circular motion is converted into linear motion through the threaded pair, driving the slide support 22 movably sleeved on the surface of the screw 24 to slide along the surface of the assembly platform 10. The slide support 22 is rigidly connected to the clamping slide 1 through bolts to form an integrated motion component, so that the clamping slide 1 can slide stably on the surface of the assembly platform 10. In addition, one end of the slide support 22 extends into the propulsion chamber 23 and slides in contact with the side wall of the opening of the propulsion chamber 23. With the help of the structure at the opening of the propulsion chamber 23, the sliding stroke of the slide support 22 can be assisted and limited.

[0047] Before cutting the plate, the side end of the plate is clamped by the clamping table group 121. The specific structure of the clamping table group 121 is disclosed below. The clamping table group 121 includes a driving cylinder 4 fixedly connected to the outer wall of the clamping slide 1, and a clamping seat 41 is fixedly installed at the bottom of the driving cylinder 4. A connecting member 42 is installed inside the clamping seat 41. The two ends of the connecting member 42 are respectively connected to an upper pressure plate 44 and a lower push plate 43, and the upper pressure plate 44 and the lower push plate 43 both extend out of the surface of the clamping seat 41. The piston rod of the driving cylinder 4 passes through the clamping seat 41 and is connected to the connecting member 42. A clamping cavity 45 is formed between the upper pressure plate 44 and the lower push plate 43. When the driving cylinder 4 is started, the piston rod pushes the connecting member 42, forcing the upper pressure plate 44 and the lower push plate 43 to slide in opposite directions, so that the PC board can be clamped inside the clamping cavity 45.

[0048] The number of the clamping platform groups 121 at one end of the clamping slide 1 is greater than the number of the clamping platform groups 121 at the other end of the clamping slide 1;

[0049] Combine Figure 7 and Figure 8 It can be seen that the clamping table group 121 adopts a double-pressure plate opposing clamping structure, which is powered by the driving cylinder 4. The driving cylinder 4 is vertically fixed to the outer wall of the clamping slide 1, and its piston rod passes through the top of the clamping seat 41 and is rigidly connected to the connecting member 42. The two ends of the connecting member 42 are respectively hinged to the upper pressure plate 44 and the lower push plate 43. When the piston rod of the driving cylinder 4 is extended, it pushes the connecting member 42 downward, driving the upper pressure plate 44 downward and the lower push plate 43 upward to perform reverse linear motion, forming a clamping force on the PC sheet in the clamping cavity 45. When the piston rod is retracted, the upper pressure plate 44 and the lower push plate 43 are reset to release the sheet.

[0050] The above-mentioned connecting member 42 is based on the lever principle and force decomposition and conversion characteristics in mechanics. Specifically, the connecting member 42 is a "T"-shaped structure, consisting of a horizontal cross bar and a longitudinal vertical bar (not shown in the figure). The two ends of the cross bar are hinged to the upper pressure plate 44 and the middle part of the lower push plate 43 through a pin shaft to form a rotatable connection node. The top of the vertical bar is rigidly connected to the piston rod of the driving cylinder 4 through a threaded pair. When the piston rod of the driving cylinder 4 is extended, a downward thrust is applied in the vertical direction. The force is transmitted to the cross bar through the vertical bar. Due to the hinge constraints at both ends of the cross bar, according to the lever principle, the cross bar decomposes the thrust into two components: a force acting downward on the upper pressure plate 44 and a force acting upward on the lower push plate 43. This symmetrical force application method causes the PC sheet to be subjected to uniform clamping force in the clamping cavity 45, reducing the tilt or deformation caused by uneven force. At the same time, the lateral stress during movement is released through the hinge structure, reducing mechanical wear and extending the service life of components.

[0051] like Figure 2 As shown, the clamping platform groups 121 at both ends of the clamping slide 1 adopt a differentiated quantity layout, that is, there are more clamping platform groups 121 at one end and relatively fewer at the other end (the specific quantity can be set according to the situation). This asymmetric design effectively solves the stability and stress control problems in the clamping process of large PC plates. Specifically: on the densely distributed side where there are more clamping platform groups 121, multiple clamping platform groups 121 are closely arranged to form a clamping force collection. When the plate is offset due to its own center of gravity, or is pushed by external force during cutting or transmission, the densely distributed side can provide sufficient gripping force and friction force to firmly fix the plate and effectively resist possible sliding or flipping of the plate. This dense clamping layout can ensure that the plate maintains a stable position under stress, providing a reliable positioning basis for subsequent processing.

[0052] The sparse side, with fewer clamping platforms 121, focuses on alleviating the internal stress of the sheet. Although large PC sheets have high rigidity, they are still prone to internal stress concentration when squeezed, leading to local deformation or even fracture. By reducing the number of clamping platforms 121, the sparse side provides the sheet with more buffer space for minor deformation. When the clamping force acts on the sheet, the sparse side allows the sheet to deform slightly, so that the internal stress can be released and dispersed, avoiding stress concentration caused by rigid clamping. While ensuring the clamping effect, it also protects the integrity of the sheet to the greatest extent and reduces the risk of damage caused by improper clamping.

[0053] The clamping table groups 121 with different densities at both ends cooperate with each other, which can not only ensure that the plate remains stable during the processing, but also take into account its surface fragility and internal stress sensitivity, thereby achieving dual optimization of clamping stability and plate protection.

[0054] The suspension structure 3 includes a table body 31 mounted on the surface of the assembly table 10 away from the clamping table group 121. The table body 31 is formed by splicing multiple panels. A plurality of suspension plates 32 are provided on the surface of the table body 31. Ball bearings 34 are movably provided inside the plurality of suspension plates 32.

[0055] An air flotation cavity 33 is formed between the suspension plate 32 and the balls 34 inside it. The other ends of the multiple air flotation cavities 33 are connected to the air flow cavity. The bottom of the air flow cavity is connected to a connecting pipe 35, which is sealed to the air outlet of the fan.

[0056] Combine Figure 3 It can be seen that the suspension structure 3 is composed of a spliced ​​table body 31 as a basic bearing platform, on which a plurality of suspension plates 32 are arranged. Figure 4 Each suspended plate 32 is equipped with a freely rolling ball 34, and the top of the ball 34 is slightly higher than the table body 31 to ensure direct contact with the plate. An air flotation cavity 33 is formed between the suspended plate 32 and the ball 34. Each air flotation cavity 33 converges into an air flow cavity through an internal channel, and is then connected to an external fan through a connecting pipe 35. During operation, the fan injects compressed air into the air flotation cavity 33, and the gas overflows from the gap between the ball 34 and the suspended plate 32, forming an air film between the plate and the table. Combined with the rolling action of the ball 34, an "air flotation + ball 34" composite friction reduction mechanism is formed, which makes the plate approximately in a suspended sliding state on the table.

[0057] Through the dual effects of "air flotation + ball bearings 34", the friction between the plate and the table body 31 is greatly reduced, so that the plate can slide easily without large external force during the feeding process, and the evenly distributed supporting force of the air film and the ball bearings 34 can prevent the plate from tilting or offsetting, ensuring the accuracy of the feeding path. At the same time, the air film separates the plate from the table body 31, and the ball bearings 34 are made of smooth material and roll in contact with the plate, effectively avoiding surface scratches, indentations and other problems caused by friction in traditional feeding methods. It not only meets the feeding convenience requirements of large PC plates, but also protects the surface quality of the plates. It can also adapt to the processing requirements of plates of different specifications, thereby improving the versatility and reliability of the equipment.

[0058] During the plate cutting process, debris, dust and other debris generated by processing are likely to remain on the surface of the assembly table 10 and in the track groove. If these debris are not cleaned in time, it is easy to cause the equipment to run poorly or even get stuck. Therefore, the other side surfaces of the multiple clamps 41 are fixedly installed with extension plates 6, and the surfaces of the multiple extension plates 6 are fixedly installed with scrapers 61.

[0059] See Figure 9 and Figure 10 As shown, the extension plate 6 is fixedly installed on the other side surface of the clamp seat 41, and a scraper 61 is set on the surface of the extension plate 6. At the same time, Figure 7 The lower push plate 43 is designed to adapt to the track groove on the surface of the assembly platform 10. When the clamping platform group 121 clamps the plate and moves horizontally toward the tool body 16, the lower push plate 43 is located in the track groove, which can push the debris in the groove forward; and when the clamping platform group 121 completes the cutting return stroke, the extension plate 6 and the scraper 61 move synchronously with the clamping slide 1, which can discharge the debris remaining on the sliding track of the clamping group 12.

[0060] Through the coordinated design of the push-down plate 43 and the scraper 61, the automatic debris clearing function of the clamping table group 121 is realized throughout the entire plate processing process. During the plate pushing stage, the push-down plate 43 promptly cleans the debris in the track groove to prevent it from affecting the linear motion accuracy of the clamping slide 1; during the return stage, the scraper 61 directionally removes the debris remaining on the sliding track to avoid debris accumulation. This two-way debris clearing mechanism can effectively reduce equipment failures caused by debris jamming.

[0061] Although PC sheets have good mechanical properties, their surface hardness is low and they are prone to scratches. Directly rigidly clamping the sheets through the lower push plate 43 and the upper pressure plate 44 can easily lead to surface scratches, indentations or internal stress cracking due to local stress concentration. At the same time, during the clamping process, if the slight deformation of the sheets caused by uneven force cannot be buffered, the risk of damage will be further aggravated. Therefore, the surfaces of the lower push plate 43 and the upper pressure plate 44 on one side close to the clamping cavity 45 are both covered with a covering layer 46, which is made of elastic material.

[0062] from Figure 8It can be seen that an elastic covering layer 46 is laid on the surface of one side of the lower push plate 43 and the upper pressure plate 44 close to the clamping cavity 45. The covering layer 46 is made of flexible materials such as silicone pads and polyurethane tape, and is fixedly connected to the lower push plate 43 and the upper pressure plate 44 through an adhesive or a card slot structure to form a buffer medium layer between the rigid pressure plate and the plate. The setting of the elastic covering layer 46 effectively improves the contact mechanical properties during the clamping process: first, through the elastic deformation of the material itself, the concentrated force applied by the lower push plate 43 and the upper pressure plate 44 is converted into a distributed force, so that The clamping stress is evenly dispersed on the surface of the plate to avoid excessive local pressure; secondly, the buffering effect of the flexible material can absorb the tiny displacement of the plate caused by the force, and prevent surface scratches caused by rigid contact; thirdly, the elastic recovery ability of the coating layer 46 allows the plate to deform freely within a certain range, relieves internal stress concentration, and reduces the risk of fracture caused by clamping force, so that the plate can be firmly clamped while the surface integrity is effectively protected. It is particularly suitable for processing optical-grade PC plates with strict requirements on appearance quality, and reduces the scrap rate caused by clamping damage.

[0063] During the plate cutting process, processing debris such as debris and dust will continue to be generated. If these debris fall into the cutting tool groove 14, they will easily get stuck in the tool body 16, affecting its normal sliding and cutting accuracy. Therefore, a clearing channel 5 is opened on the surface of the central workbench 11, and the clearing channel 5 is located between the cutting tool groove 14 and the second extension platform 15. Discharge grooves 51 are opened on both sides of the central workbench 11.

[0064] See Figure 5 and Figure 6 As shown, a cleaning channel 5 is provided on the surface of the central workbench 11, and its position is between the cutting tool groove 14 and the second extension platform 15. At the same time, discharge grooves 51 are provided on both sides of the central workbench 11. When the lower push plate 43 pushes the plate to move along with the clamping slide 1, the debris in the track groove can be pushed forward to fall into the cleaning channel 5, and finally discharged from the equipment through the discharge grooves 51 on both sides. The layout design of the cleaning channel 5 and the discharge groove 51, combined with the pushing function of the lower push plate 43, forms a complete debris discharge path, which can guide the debris generated by cutting to the non-working area in a timely and targeted manner, avoid debris from entering the cutting tool groove 14, and ensure the smooth operation and cutting accuracy of the tool body 16.

[0065] Working principle:

[0066] First, place the PC sheet on the surface of the assembly table 10, start the fan of the suspension structure 3, and inject compressed air into the air flotation chamber 33 through the connecting pipe 35, which cooperates with the ball bearing 34 to form a dual friction reduction effect of "air flotation + rolling", so that the sheet is almost suspended on the table surface, which is easy to adjust to the cutting position. Then, the driving motor 25 drives the screw rod 24 to rotate, and pushes the slide support 22 through the threaded pair transmission, so that the clamping slide 1 moves to the side end of the sheet; the piston rod of the driving cylinder 4 is extended, pushing the connecting member 42 to drive the upper pressure plate 44 and the lower push plate 43 to move in the opposite direction, and the clamping chamber 45 is used to clamp the sheet. At the same time, the clamping table groups 121 with different distributions at both ends of the clamping slide 1 work together, with the dense side providing strong clamping force to resist sliding, and the sparse side buffering internal stress to prevent deformation;

[0067] During cutting, the tool body 16 slides within the cutting tool groove 14, matching the propulsion speed of the clamping slide 1 to complete the cutting. Throughout the entire processing process, the lower push plate 43 pushes debris within the track groove to the clearing channel 5. The extension plate 6 and scraper 61 on the clamping seat 41 clear the debris from the sliding track during the return stroke. The two types of components cooperate to discharge debris through the discharge chute 51. In addition, the elastic coating 46 on the surface of the upper pressure plate 44 and the lower push plate 43 disperses the clamping force through deformation, avoiding scratches on the plate surface and internal stress concentration, ultimately achieving precise plate cutting, efficient feeding, and stable equipment operation.

[0068] Example 2: This example is based on the content provided in Example 1, and aims to provide a cutting process for large PC sheets. The specific steps are as follows:

[0069] Step 1: First, place the PC sheet to be cut on the central workbench 11 and the first extension table 13 of the assembly table 10, aligning the area of ​​the sheet to be cut with the cutting tool groove 14. Start the fan of the suspension structure 3, supplying air to the air flotation chamber 33 through the connecting pipe 35, so that the balls 34 form a double suspension effect within the suspension plate 32, reducing the friction coefficient between the sheet and the table surface.

[0070] Step 2: Start the drive motor 25, which drives the clamping slide 1 to slide along the assembly platform 10 through the screw rod 24, so that the clamping platform assembly 121 is aligned with the side of the plate. Then start the drive cylinder 4, and the piston rod pushes the connecting piece 42, so that the upper pressure plate 44 and the lower push plate 43 slide in opposite directions, clamping the plate in the clamping cavity 45;

[0071] Step 3: Simultaneously utilize the density difference of the clamping platform groups 121 at both ends of the clamping slide 1 to achieve differentiated and stable clamping of the plate. The dense side resists sliding, and the sparse side buffers internal stress. During the clamping process, the propulsion component 2 and the clamping platform group 121 are linked, and the push plate 43 moves synchronously to assist in lifting the plate.

[0072] Step 4: Start the tool body 16 and cut the clamped PC sheet along the cutting tool groove 14;

[0073] Step 5: After the cutting is completed, the driving cylinder 4 is started again to release the plate, and the suspension structure 3 continues to maintain the suspension state to assist the plate to be withdrawn.

[0074] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamping member for cutting large PC sheets, comprising a clamping slide (1), wherein the clamping slide (1) is located above a group table (10), and is characterized in that: The assembly platform (10) includes a central workbench (11), one side of the central workbench (11) is connected to two first extension platforms (13), and one end of the central workbench (11) away from the first extension platforms (13) is connected to two second extension platforms (15); A cutting tool groove (14) is provided on the surface of the central workbench (11), and a tool body (16) is slidably provided inside the cutting tool groove (14); A clamping group (12) is provided on the outer wall of one side of the clamping slide (1), and the clamping group (12) is composed of a plurality of clamping platform groups (121). Propulsion components (2) are installed on both sides of the clamping slide (1). Under the action of the propulsion components (2), the clamping slide (1) can slide on the surface of the group (10) to propel the PC plate clamped on one side in the plurality of clamping platform groups (121) toward the tool body (16); The surfaces of the two first extension platforms (13) and the surface of the central workbench (11) are both provided with a suspension structure (3). When the plate slides toward the tool body (16), the suspension structure (3) is used to assist in lifting the plate so that it is suspended and slides on the surface of the assembly platform (10); The propulsion assembly (2) includes a slide support (22) fixedly connected to the side end of the clamping slide (1), a side vertical plate (21) is fixedly installed on the side wall of the assembly platform (10), and a propulsion cavity (23) is formed inside the side vertical plate (21), and the side of the slide support (22) away from the clamping slide (1) is located inside the propulsion cavity (23), and a screw rod (24) is provided for rotation inside the propulsion cavity (23), and a drive motor (25) is fixedly installed on one side of the side vertical plate (21), and the output shaft of the drive motor (25) is fixedly connected to the rotating shaft of the screw rod (24), and the side of the slide support (22) located inside the propulsion cavity (23) is movably connected to the surface of the screw rod (24); The clamping platform group (121) includes a driving cylinder (4) fixedly connected to the outer wall of the clamping slide (1), a clamping seat (41) is fixedly installed on the bottom of the driving cylinder (4), a connecting piece (42) is installed inside the clamping seat (41), and the two ends of the connecting piece (42) are respectively connected to an upper pressure plate (44) and a lower push plate (43), and the upper pressure plate (44) and the lower push plate (43) both extend out of the surface of the clamping seat (41), and the piston rod of the driving cylinder (4) passes through the clamping seat (41) and is connected to the connecting piece (42), and a clamping cavity (45) is formed between the upper pressure plate (44) and the lower push plate (43), and when the driving cylinder (4) is started, the piston rod pushes the connecting piece (42), forcing the upper pressure plate (44) and the lower push plate (43) to slide in opposite directions, so that the PC board can be clamped inside the clamping cavity (45); The number of the clamping platform groups (121) at one end of the clamping slide (1) is greater than the number of the clamping platform groups (121) at the other end of the clamping slide (1).

2. The large PC sheet cutting clamp according to claim 1, characterized in that: The suspended sliding structure (3) includes a table top body (31) mounted on a surface of a side of the assembly table (10) away from the clamping table group (121), the table top body (31) being formed by splicing a plurality of panels, a plurality of suspended sliding plates (32) being provided on the surface of the table top body (31), and a plurality of the suspended sliding plates (32) are movably provided with balls (34) inside.

3. The large PC sheet cutting clamp according to claim 2, characterized in that: An air flotation cavity (33) is formed between the suspension plate (32) and the internal ball bearings (34) thereof. The other ends of the plurality of air flotation cavities (33) are all in communication with the air flow cavity. The bottom of the air flow cavity is connected to a connecting pipe (35), and the connecting pipe (35) is sealed and connected to the air outlet of the fan.

4. The clamp for cutting large PC sheets according to claim 1, characterized in that: Extension plates (6) are fixedly mounted on the other side surfaces of the plurality of clamping seats (41), and scrapers (61) are fixedly mounted on the surfaces of the plurality of extension plates (6).

5. The cutting clamp for large PC sheets according to claim 1, characterized in that: The lower push plate (43) and the upper pressing plate (44) are both provided with a covering layer (46) on one side surface close to the clamping cavity (45), and the covering layer (46) is made of elastic material.

6. The clamp for cutting large PC sheets according to claim 1, characterized in that: A material clearing channel (5) is provided on the surface of the central workbench (11), and the material clearing channel (5) is located between the cutting tool channel (14) and the second extension platform (15). Discharge grooves (51) are provided on both sides of the central workbench (11).

7. A cutting process for large PC sheets, characterized in that: The cutting clamp for large PC sheets according to claim 3 includes the following steps: S1. First, place the PC sheet to be cut on the central workbench (11) and the surface of the first extension table (13) of the assembly table (10), align the area of ​​the sheet to be cut with the cutting tool groove (14), start the fan of the suspension structure (3), and deliver air to the air flotation chamber (33) through the connecting pipe (35), so that the ball (34) forms a double suspension effect in the suspension plate (32), thereby reducing the friction coefficient between the sheet and the table surface; S2, start the driving motor (25), drive the clamping slide (1) to slide along the assembly platform (10) through the screw rod (24), so that the clamping platform group (121) is aligned with the side of the plate, and then start the driving cylinder (4), the piston rod pushes the connecting piece (42), so that the upper pressure plate (44) and the lower push plate (43) slide in opposite directions, clamping the plate in the clamping cavity (45); S3. Simultaneously, the density difference of the clamping table groups (121) at both ends of the clamping slide (1) is utilized to achieve differentiated stable clamping of the plate. The dense side resists sliding, and the sparse side buffers internal stress. During the clamping process, the propulsion component (2) is linked with the clamping table group (121), and the push-down plate (43) moves synchronously to assist in lifting the plate. S4, starting the tool body (16) and cutting the clamped PC sheet along the cutting tool groove (14); S5. After the cutting is completed, the driving cylinder (4) is started again to release the plate, and the suspension structure (3) continues to maintain the suspension state to assist the plate to be withdrawn.

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