A sheet metal grooving machine with a pressing function

Abstract

The present invention relates to the technical field of sheet processing equipment, and specifically discloses a sheet grooving machine with a pressing function, which includes a machine case. A placement plate is fixedly installed in a groove opened on the top surface of the machine case. Sliding grooves are opened on both sides of the placement plate, and sliding frames are slidably installed in the sliding grooves. A tool rest is fixedly installed on the bottom surface of the sliding frame. Through the flattening mechanism of the present invention, the sheet is first leveled, so that the sheet in a bent state is as flat as possible, and the sheet after pre-tightening is pressed by the pressing feet, so that the sheet is limited in multiple dimensions by the side wall of the placement area, pre-tightening by the pre-tightening part, and the pressure of the pressing feet. It can not only limit the sheet with a bending tendency after leveling to a flat state, improve the grooving accuracy of the tool on the sheet, but also apply sufficient stress to the sheet to avoid deformation of the sheet due to excessive internal stress caused by the stress during the processing of the sheet by the tool, and reduce the processing accuracy of the sheet.

Description

Technical Field

[0001] The invention relates to the technical field of plate processing equipment, in particular to a plate slotting machine with a pressing function. Background Art

[0002] Grooving is an auxiliary process for bending metal or non-metal materials. Special equipment and tools are used to cut out V-shaped grooves at the bending lines where metal or non-metal materials need to be bent, so that the materials are easy to bend and the outer R of the bending angle can be minimized. Then the materials are bent by a bending machine or manually. In this way, the processing is completed and the product appearance requirements are met.

[0003] At present, the grooving of sheet materials is mostly achieved by using a sheet material grooving machine. For example, Chinese patent number CN220717892U discloses a grooving machine, including a grooving machine body, mounting blocks are fixedly installed on both sides of the lower end of the grooving machine body, three mounting blocks are arranged in a linear array, and mounting holes are opened at one end of the three mounting blocks. A cleaning component is fixedly installed on the upper surface of the grooving machine body, and a collection box is clamped and installed at one end of the upper surface of the grooving machine body. The grooving machine body and the collection box are fixedly installed with a clamping component. The utility model drives the broom and the silicone plate to slide through the connecting plate, and the broom and the silicone plate push the sheet material debris on the upper surface of the grooving machine body, so that the sheet material debris is pushed into the collection box. When the collection box needs to be cleaned, the collection box is moved to drive the steel ball to be squeezed in the card slot, and the steel ball is retracted in the fixed base through the spring, so that the steel ball is separated from the card slot, and the slide plate slides out of the slide slot, which has the advantage of facilitating the disassembly of the collection box.

[0004] However, since most sheets are in the form of coils during transportation, they remain curved after being cut. Directly pressing the curved sheets may cause local bulges in the sheets after pressing. The bulges will cause the internal stress distribution of the sheets to be concentrated, making it impossible for the tool to cut the sheets stably, resulting in deviations in the groove lines and affecting the processing accuracy. Summary of the invention

[0005] The object of the present invention is to provide a plate slotting machine with a clamping function to solve at least one technical problem existing in the above-mentioned prior art.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a plate slotting machine with a clamping function, comprising a chassis, a placing plate fixedly installed in a groove provided on the top surface of the chassis, slide grooves provided on both sides of the placing plate, a sliding frame slidably installed in the slide groove, a tool holder fixedly installed on the bottom surface of the sliding frame, a tool capable of moving up and down provided in the tool holder, and a placement area for placing plates provided on the top surface of the placing plate;

[0007] It also includes a flattening mechanism, which is used to flatten the plate;

[0008] A plurality of pre-tightening parts are provided below the storage plate placement area, and the pre-tightening parts are used to locally pre-tighten the plate after the flattening process;

[0009] It also includes presser feet arranged on the inner side walls of both sides of the storage board, and the presser feet can complete secondary pressing of the board.

[0010] Preferably, the pre-tightening part comprises a plurality of negative pressure chambers fixedly mounted at the bottom of the placement area of ​​the placement plate, a through hole communicating with the negative pressure chamber is opened on the surface of the placement plate, a piston plate is slidably mounted in the negative pressure chamber, and a piston rod penetrating the bottom surface of the negative pressure chamber is fixedly mounted on the bottom surface of the piston plate;

[0011] The utility model also comprises a driving part for driving the piston rod to slide up and down.

[0012] Preferably, the driving part includes a plurality of shaft seats fixedly mounted on the inner bottom surface of the chassis, a crankshaft is rotatably mounted in the shaft seat, a connector is rotatably mounted between the bottom end of the piston rod and the connecting rod journal of the crankshaft, a rotating block is fixedly mounted on the outer wall of the main journal on one side of the crankshaft, a plurality of sliding limiters corresponding to the rotating blocks are fixedly mounted on the inner bottom surface of the chassis, a latch is fixedly mounted in a groove provided in the bottom end of the rotating block, a rotating rod is also provided in the groove at the bottom end of the rotating block, a long groove is provided on the rotating rod for the latch to rotate and slide, and a spring is clamped between the protrusion on the outer wall of the rotating rod and the latch.

[0013] Preferably, an electrically controlled slider is slidably mounted on the side wall of the sliding frame, and an elastic telescopic rod is fixedly mounted on the bottom end of the electrically controlled slider. When the elastic telescopic rod moves, it can contact the top of the rotating block and drive it to rotate.

[0014] Preferably, the paving mechanism includes two sliding connectors slidably installed on the inner wall of the sliding frame, a pressure roller is rotatably installed between the two sliding connectors, a threaded rod passing through the sliding connector is rotatably installed on the top surface of the sliding frame, and the sliding connector is provided with a thread that can engage with the threaded rod.

[0015] Preferably, a rotatable and adjustable fixed shaft is installed between the two sliding connectors, an elastic retractable pen and a wiping cotton are fixedly installed on the outer wall of the fixed shaft, and three laser emitters are fixedly installed on the inner top surface of the sliding frame, one of which is on the same axis as the tool, and the other two are distributed on both sides of the tool, and the emitted lasers correspond to the lines drawn by the elastic retractable pens on both sides.

[0016] Preferably, the outer wall of the fixed shaft and the outer wall of the pressure roller are both provided with friction wheels which are in close contact with each other, the side wall of the sliding connection member is provided with a limiting arc groove, and the side wall of the friction wheel located on the fixed shaft is fixed with a limiting block which can slide in the limiting arc groove.

[0017] Preferably, image detectors are provided on both sides of the storage board, and the image detectors are electrically connected to the electric control slider.

[0018] Preferably, a V-shaped groove into which the bottom end of the elastic telescopic rod can be inserted is provided on the top surface of the rotating block.

[0019] Preferably, an anti-seismic device is provided at the connection between the elastic telescopic pen and the fixed shaft.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] First, the present invention first levels the board through the flattening mechanism to make the board in a bent state as flat as possible, and then cooperates with the pre-tightening part to partition and fix the flat board in the placement area on the surface of the storage board, and presses the pre-tightened board through the pressure feet, so that the board is limited in multiple dimensions by the side wall of the placement area, the pre-tightening of the pre-tightening part, and the pressure of the pressure feet. It can not only limit the board with a tendency to bend after flattening to a flat state, improve the grooving accuracy of the tool on the board, but also apply sufficient stress to the board to avoid deformation of the board due to excessive internal stress caused by the stress of the tool on the board during processing, and reduce the processing accuracy of the board.

[0022] Second, the present invention adsorbs the flattened board through multiple negative pressure chambers respectively. While avoiding the bent board after flattening due to the stress of the flattening mechanism on the unflattened board, it performs partial pre-tightening on the flattened board in zones, so that when the pressure feet press the board, it can ensure that the board does not bend, further improving the flatness and processing accuracy of the board.

[0023] Third, the present invention drives the main journal of the crankshaft to rotate together through the rotating block, pulling the piston rod to move up or down together, and thus can complete the locking or unlocking of the board through the negative pressure chamber in the above text. Since multiple negative pressure chambers are provided on the bottom surface of the storage board, the rotating blocks below each negative pressure chamber can be driven respectively to make the multiple negative pressure chambers sequentially complete the adsorption of the upper storage board. And when there is still bending of the board after flattening and pre-tightening, the rotating blocks corresponding to the bent area and the subsequent areas can be driven separately to release the pre-tightening of the board above these areas, and re-flatten and pre-tighten the board above this area. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 is a three-dimensional structural sectional view of the driving part of the present invention;

[0026] Figure 3 is a side sectional view of the present invention;

[0027] Figure 4 This is a sectional view of the flattening mechanism in the present invention;

[0028] Figure 5 This is a three-dimensional structural schematic diagram of the driving part in the present invention;

[0029] Figure 6 This is an exploded schematic diagram of the flattening mechanism in the present invention;

[0030] Figure 7 This is a three-dimensional structural schematic diagram of the elastic telescopic pen in the present invention;

[0031] Figure 8 This is a schematic diagram when the driving part of the present invention is at the dead center position.

[0032] In the figure: 1, chassis; 2, sliding frame; 3, tool rest; 4, placing plate; 5, sliding groove; 6, pressure foot; 7, image detector; 8, electric control slider; 9, elastic telescopic rod; 10, sliding stopper; 11, rotating rod; 12, rotating block; 13, crankshaft; 14, sheet material; 15, piston plate; 16, negative pressure chamber; 17, piston rod; 18, connector; 19, shaft seat; 20, laser emitter; 21, threaded rod; 22, sliding connecting piece; 23, pressure roller; 24, friction wheel; 25, fixed shaft; 26, limiting arc groove; 27, elastic telescopic pen; 28, wiping cotton. Specific embodiments

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Please refer to Figures 1 to 8 , the present invention provides a technical solution: a sheet material grooving machine with a pressing function, including a chassis 1, characterized in that: a placing plate 4 is fixedly installed in a groove opened on the top surface of the chassis 1, sliding grooves 5 are opened on both sides of the placing plate 4, a sliding frame 2 is slidably installed in the sliding grooves 5, a tool rest 3 is fixedly installed on the bottom surface of the sliding frame 2, a tool capable of moving up and down is provided in the tool rest 3, and a placing area for placing the sheet material 14 is provided on the top surface of the placing plate 4;

[0035] It further includes a flattening mechanism for flattening the sheet material 14;

[0036] A plurality of pre-tightening parts are provided below the placing area of the placing plate 4 for locally pre-tightening the sheet material 14 after being flattened;

[0037] It further includes pressing feet 6 provided on the inner side walls of both sides of the placing plate 4, and the pressing feet 6 can perform secondary pressing on the plate 14.

[0038] When the device is in use, first place the plate 14 in the placing area on the surface of the placing plate 4, and then drive the sliding frame 2 to slide along the chute 5 through an external structure (such as a cylinder, etc.). When the sliding frame 2 slides, it will drive the flattening mechanism to perform flattening processing on the plate 14 to avoid the plate 14 still having a certain degree of bending after cutting, which may cause the tool to be unable to maintain high-precision grooving on the plate 14. At this time, the pre-tightening part will automatically perform local pre-tightening on the plate 14 after flattening processing, so that the plate 14 after flattening processing is close to the surface of the placing plate 4. After the flattening mechanism completes the flattening processing of the plate 14, press the plate 14 that has been close to the placing plate 4 through the pressing feet 6, and the purpose of pressing the plate 14 in a bent state can be achieved. Then, drive the sliding frame 2 to reset through an external structure, and adjust the cutting depth of the tool. Then, drive the sliding frame 2 to drive the tool rest 3 and the tool to slide reciprocally together until the grooving processing of the plate 14 is completed.

[0039] In this way, through the flattening mechanism, the plate 14 is first flattened, so that the plate 14 in a bent state is as flat as possible. Then, in cooperation with the pre-tightening part, the flattened plate 14 is partitioned and fixed in the placing area on the surface of the placing plate 4, and the pre-tightened plate 14 is pressed through the pressing feet 6, so that the plate 14 is limited in multiple dimensions by the side wall of the placing area, pre-tightening of the pre-tightening part, and the pressure of the pressing feet 6. It can not only limit the plate 14 with a tendency to bend after flattening processing to a flat state, improve the grooving accuracy of the tool on the plate 14, but also apply sufficient stress to the plate 14 to avoid the stress during the processing of the plate 14 by the tool causing the plate 14 to deform due to excessive internal stress and reduce the processing accuracy of the plate 14.

[0040] Further, the pre-tightening part includes a plurality of negative pressure chambers 16 fixedly installed at the bottom of the placing area of the placing plate 4. Through holes communicating with the negative pressure chambers 16 are provided on the surface of the placing plate 4. A piston plate 15 is slidably installed in the negative pressure chamber 16, and a piston rod 17 penetrating the bottom surface of the negative pressure chamber 16 is fixedly installed on the bottom surface of the piston plate 15;

[0041] It further includes a driving part for driving the piston rod 17 to slide up and down.

[0042] According to the above embodiment, a specific embodiment of the pre-tightening part is provided. For details, please refer to Figure 3, when the driving part drives the piston rod 17 to descend, the piston rod 17 pulls the piston plate 15 to slide downward in the negative pressure chamber 16. At this time, the negative pressure chamber 16 adsorbs the plate 14 that has been leveled by the leveling mechanism through the internal low pressure, so that the plate 14 is tightly attached to the surface of the placement plate 4. As shown in the figure, multiple negative pressure chambers 16 communicate with the bottom of the placement area. When the leveling mechanism moves to the right, multiple negative pressure chambers 16 will sequentially adsorb the plate 14 that has been leveled, preventing the plate 14 that has not been leveled from causing the plate 14 that has been leveled to bend after being stressed by the leveling mechanism, thereby improving the leveling effect of the plate 14 and the subsequent processing accuracy.

[0043] In this way, by multiple negative pressure chambers 16 sequentially adsorbing the plate 14 that has been leveled as the leveling mechanism moves, while preventing the plate 14 that has not been leveled from causing the plate 14 that has been leveled to bend after being stressed by the leveling mechanism, and performing partial pre-tightening on the plate 14 that has been leveled in zones, it can be ensured that the plate 14 does not bend when the pressure foot 6 presses the plate 14, further improving the flatness and processing accuracy of the plate 14.

[0044] Further, the driving part includes a plurality of shaft seats 19 fixedly installed on the inner bottom surface of the chassis 1. A crankshaft 13 is rotatably installed in the shaft seat 19. A connector 18 is rotatably installed between the bottom end of the piston rod 17 and the connecting rod journal of the crankshaft 13. A rotating block 12 is fixedly installed on the outer wall of the main journal on one side of the crankshaft 13. A plurality of sliding limiters 10 corresponding to the rotating block 12 are fixedly installed on the inner bottom surface of the chassis 1. A pin is fixedly installed in the cut groove opened at the bottom end of the rotating block 12. A rotating rod 11 is also provided in the cut groove at the bottom end of the rotating block 12. A long groove for the pin to rotate and slide is opened on the rotating rod 11. A spring is clamped between the protrusion on the outer wall of the rotating rod 11 and the pin.

[0045] According to the above embodiment, a specific embodiment of the driving part is provided. For details, please refer to Figure 2 , when the rotating block 12 is driven by an external structure to rotate leftward, it will drive the rotating rod 11 to rotate leftward together until the bottom end of the rotating rod 11 is limited by the sliding limiter 10 and cannot rotate. At this time, the rotating block 12 and the rotating rod 11 are self-locked under the action of the spring, so that the rotating block 12 cannot reset without external force. At the same time, the rotating block 12 drives the crankshaft 13 to rotate together with the main journal of the crankshaft 13 as the center, so that the connecting rod journal of the crankshaft 13 drives the connector 18 to orbit around the main journal. During the orbiting process, the connector 18 pulls the piston rod 17 downward. When the external force drives the rotating block 12 to break through the spring resistance and reset, the connecting rod journal of the crankshaft 13 drives the connector 18 and the piston rod 17 to reset together, thus completing the driving of the piston rod 17 to slide up and down as described above.

[0046] In this way, the main journal of the crankshaft 13 is driven to rotate by the rotating block 12, and the piston rod 17 is pulled up or down together, so that the locking or unlocking of the plate 14 by the negative pressure chamber 16 can be completed. Since the bottom surface of the storage plate 4 is provided with multiple negative pressure chambers 16, the multiple negative pressure chambers 16 can be driven to adsorb the upper storage plate 4 in sequence by driving the rotating block 12 under each negative pressure chamber 16 respectively. When the plate 14 is still bent after being flattened and pre-tightened, the plate 14 above these areas can be released from pre-tightening by driving the rotating block 12 corresponding to the bending area and the subsequent areas separately. For example, Figure 3 In the figure, when the plate 14 above the second negative pressure chamber 16 on the right side bends and bulges, it is only necessary to drive the first and second rotating blocks 12 on the right side of the figure to release the pre-tightening of the negative pressure chambers 16 in these two areas on the plate 14, and use the flattening mechanism to flatten these two areas so that there is space to extend to one side at the bending part, and re-pre-tighten the area after flattening, so that the plate 14 is easy to handle when bending, avoiding the need to re-clamp and press the plate 14 due to the bending of the plate 14.

[0047] It is worth mentioning that since the initial position of the connecting rod journal of the crankshaft 13 is set horizontally, see Figure 5 When the crankshaft 13 main journal rotates 90 degrees driven by the rotating block 12, the following Figure 8 In the position shown, the connecting rod journal of the crankshaft 13 and the connector 18 and the piston rod 17 are all in the same straight line, that is, the dead point of the mechanism. At this time, the torque of the negative pressure chamber 16 pulling the piston rod 17 is zero, and the piston rod 17 cannot be reset without external force. The pulling force of the negative pressure chamber 16 on the piston rod 17 is avoided by only relying on the spring between the rotating rod 11 and the rotating block 12 to offset it, thereby ensuring that the pre-tightening effect of the negative pressure in the negative pressure chamber 16 on the plate 14 will not be released.

[0048] Furthermore, an electric control slider 8 is slidably mounted on the side wall of the sliding frame 2, and an elastic telescopic rod 9 is fixedly mounted on the bottom end of the electric control slider 8. When the elastic telescopic rod 9 moves, it can contact the top of the rotating block 12 and drive it to rotate.

[0049] According to the above embodiment, it can be known that when the sliding frame 2 slides along the sliding groove 5 on both sides of the storage plate 4, the electric control slider 8 moves downward to make the elastic telescopic rod 9 move and drive the rotating block 12 to rotate. When the electric control slider 8 slides upward, the elastic telescopic rod 9 is pulled out of contact with the rotating block 12, so that when the sliding frame 2 slides back and forth, the elastic telescopic rod 9 can be prevented from accidentally touching the rotating block 12 to release the pre-tightening of the negative pressure chamber 16 on the plate 14. The negative pressure chamber 16 that needs to be released from the pre-tightening can also be adjusted separately by controlling the electric control slider 8, so as to achieve the purpose of leveling the curved area of ​​the plate 14 separately.

[0050] Further, the flattening mechanism includes two sliding connectors 22 slidably mounted on the inner side walls of the sliding frame 2. A pressure roller 23 is rotatably mounted between the two sliding connectors 22. A threaded rod 21 passing through the sliding connectors 22 is rotatably mounted on the top surface of the sliding frame 2, and the sliding connectors 22 are provided with threads that can mesh with the threaded rod 21.

[0051] According to the above embodiment, a specific embodiment of the flattening mechanism is provided. By driving the rotation of the threaded rod 21, the sliding connectors 22 can be driven to slide up and down on the inner side walls of the sliding frame 2. When the sliding frame 2 slides for the first time, first lower the sliding connectors 22 so that the pressure roller 23 is in close contact with the surface of the sheet 14. Subsequently, drive the sliding frame 2 to slide, so that the pressure roller 23 rolls on the surface of the sheet 14 to flatten the sheet 14. And by controlling the downward movement of the electric control slider 8, the sheet 14 flattened by the pressure roller 23 is adsorbed and pre-tightened by the negative pressure chamber 16. When the sheet 14 after flattening and pre-tightening has no bending, at this time, the sliding connectors 22 can be driven by the threaded rod 21 to slide up on the inner side walls of the sliding frame 2, so that the pressure roller 23 is separated from the surface of the sheet 14, avoiding repeated extrusion of the sheet 14 with good ductility by the pressure roller 23 when the sliding frame 2 resets and causing deformation.

[0052] Further, a rotatably adjustable fixed shaft 25 is also installed between the two sliding connectors 22. An elastic telescopic pen 27 and a wiping cotton 28 are fixedly installed on the outer wall of the fixed shaft 25. Three laser emitters 20 are fixedly installed on the inner top surface of the sliding frame 2. One of them is on the same axis as the tool, and the other two are distributed on both sides of the tool, and the emitted lasers respectively correspond to the lines drawn by the elastic telescopic pens 27 on both sides.

[0053] According to the above embodiment, as Figure 3 shown, when the sliding frame 2 moves to the left, the elastic telescopic pen 27 will draw positioning lines on the surface of the sheet 14 flattened by the pressure roller 23, and during the subsequent grooving process of the sheet 14, the laser emitters 20 will position the positioning lines, and cooperate with the laser emitter 20 on the same axis as the tool to perform depth positioning on the contact point between the tool and the sheet 14 during grooving, so as to avoid the stress of the tool during grooving causing the tool or the sheet 14 to shift and resulting in a decrease in processing accuracy. When the positioning lines deviate due to the protrusions or depressions on the surface of the sheet 14, the other two laser emitters 20 will give a reminder by tracking and positioning the pigment. At this time, the elastic telescopic pen 27 can be rotated away from the surface of the sheet 14 by rotating the fixed shaft 25, and the wiping cotton 28 can be rotated to fit the surface of the sheet 14, so that the sliding frame 2 can drive the wiping cotton 28 to wipe the distorted positioning lines, and then the sheet 14 can be re-flattened by the above method and then re-scribed.

[0054] Furthermore, the outer walls of the fixed shaft 25 and the pressure roller 23 are both provided with friction wheels 24 that are in close contact with each other, the side walls of the sliding connection 22 are provided with a limiting arc groove 26, and the side walls of the friction wheel 24 located on the fixed shaft 25 are fixed with a limiting block that can slide in the limiting arc groove 26.

[0055] On the basis of the above-mentioned embodiment, an embodiment is provided in which the fixed shaft 25 is driven to rotate and the elastic retractable pen 27 and the wiping cotton 28 are switched back and forth;

[0056] Specific reference Figure 3 When the sliding frame 2 slides to the left, the pressure roller 23 rotates counterclockwise due to the friction of the surface of the plate 14, and drives the fixed shaft 25 to rotate together through the friction wheel 24. When the friction wheel 24 on the outer wall of the fixed shaft 25 rotates to the maximum distance that the limit block is allowed to slide in the limit arc groove 26, the friction wheel 24 on the outer wall of the fixed shaft 25 is no longer allowed to rotate, and the two friction wheels 24 slip against each other. At this time, the elastic telescopic pen 27 is just in a state of being in contact with the surface of the plate 14, and the positioning line on the surface of the plate 14 can be delineated by sliding the sliding frame 2 to the left. When the sliding frame 2 slides to the right, the pressure roller 23 rotates clockwise and drives the fixed shaft 25 to rotate together through the friction wheel 24 to the maximum rotation range of the friction wheel 24 on the outer wall of the fixed shaft 25. The two friction wheels 24 slip against each other. At this time, the wiping cotton 28 is in a state of being in contact with the surface of the plate 14, and the wiping work of the distorted positioning line can be completed by sliding the sliding frame 2 to the right.

[0057] In this way, the purpose of rotating and switching the elastic retractable pen 27 and the wiping cotton 28 can be achieved by moving the sliding frame 2, so that when the sliding frame 2 is reset and moved to a position that needs to be re-leveled, the wiping cotton 28 can wipe all the marks on the plate 14. At the same time, the movement of the sliding frame 2 again can also allow the elastic retractable pen 27 to re-mark the surface of the plate 14 after the second leveling.

[0058] Furthermore, image detectors 7 are provided on both sides of the storage plate 4 , and the image detectors 7 are connected to the electric control slider 8 via electrical signals.

[0059] According to the above embodiment, it can be known that after the elastic retractable pen 27 completes the marking work on the surface of the plate 14, the image detector 7 detects the positioning line on both sides of the storage plate 4. If the positioning line is flat, it indicates that the plate 14 has no bending condition, and the plate 14 can be pressed by the presser foot 6. If the positioning line has a bulge, it indicates that the plate 14 has a bending condition at this place, and the electric control slider 8 can be used to drive the area and the area after this area to release the pre-tightening, and release the pressure of the presser foot 6 at this place, so as to facilitate the pressure roller 23 to flatten this place and leave extension space for the plate 14.

[0060] Further, a V-shaped groove into which the bottom end of the elastic telescopic rod 9 can be inserted is provided on the top surface of the rotating block 12.

[0061] According to the above-described embodiment, when the rotating block 12 is toggled by the electric control slider 8 and the sliding bracket 2, the bottom end of the elastic telescopic rod 9 first inserts into the V-shaped groove and drives the rotating block 12 to rotate past the dead point position (i.e., the rotating block 12 is in a vertical state). Subsequently, the elastic telescopic rod 9 is no longer limited by the V-shaped groove and continues to slide. After passing the dead point position, the rotating block 12 completes the subsequent rotation through the spring tension, preventing the elastic telescopic rod 9 from being unable to disengage from the rotating block 12 when toggling the rotating block 12, which would cause jamming.

[0062] Further, an anti-vibration device is provided at the connection between the elastic telescopic pen 27 and the fixed shaft 25.

[0063] According to the above-described embodiment, when the elastic telescopic pen 27 scribes on the surface of the plate 14, the elastic telescopic pen 27 may be vibrated by the fixed shaft 25 due to the slipping of the friction wheel 24. Providing an anti-vibration device at the connection between the elastic telescopic pen 27 and the fixed shaft 25 is beneficial to maintaining the accuracy of the positioning line. Moreover, since the connection between the wiping cotton 28 and the fixed shaft 25 is a rigid connection, when the fixed shaft 25 vibrates, it drives the wiping cotton 28 to vibrate together, which can improve the wiping effect of the wiping cotton 28 on the distorted positioning line.

[0064] The standard parts used in this embodiment can be directly purchased from the market. For the non-standard structural components described in the specification and drawings, they can also be directly processed without doubt based on the existing technical knowledge. At the same time, the connection methods of each component adopt the mature conventional means in the existing technology, and the machinery, parts, and equipment all adopt the conventional models in the existing technology. Therefore, no specific description will be made here.

[0065] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sheet metal slotting machine with a clamping function, comprising a chassis (1), characterized in that: A storage plate (4) is fixedly installed in a groove formed on the top surface of the chassis (1), and slide grooves (5) are formed on both sides of the storage plate (4). A sliding frame (2) is slidably installed in the slide grooves (5), and a tool holder (3) is fixedly installed on the bottom surface of the sliding frame (2). A tool that can move up and down is provided in the tool holder (3), and a placement area for placing a plate (14) is provided on the top surface of the storage plate (4); It also includes a flattening mechanism, which is used to flatten the plate (14); A plurality of pre-tightening parts are provided below the placement area of ​​the storage plate (4), and the pre-tightening parts are used to locally pre-tighten the plate (14) after being flattened; It also includes presser feet (6) arranged on the inner side walls of both sides of the storage plate (4), and the presser feet (6) can perform secondary pressing on the plate (14); The pre-tightening part comprises a plurality of negative pressure chambers (16) fixedly mounted at the bottom of the placement area of ​​the placement plate (4); a through hole communicating with the negative pressure chamber (16) is provided on the surface of the placement plate (4); a piston plate (15) is slidably mounted in the negative pressure chamber (16); a piston rod (17) penetrating the bottom surface of the negative pressure chamber (16) is fixedly mounted on the bottom surface of the piston plate (15); It also includes a driving part for driving the piston rod (17) to slide up and down; The driving part comprises a plurality of shaft seats (19) fixedly mounted on the inner bottom surface of the chassis (1), a crankshaft (13) being rotatably mounted in the shaft seat (19), a connector (18) being rotatably mounted between the bottom end of the piston rod (17) and the connecting rod journal of the crankshaft (13), a rotating block (12) being fixedly mounted on the outer wall of the main journal on one side of the crankshaft (13), a plurality of sliding limiters (10) respectively corresponding to the rotating blocks (12) being fixedly mounted on the inner bottom surface of the chassis (1), a latch being fixedly mounted in a groove provided at the bottom end of the rotating block (12), a rotating rod (11) being further provided in the groove at the bottom end of the rotating block (12), a long groove being provided on the rotating rod (11) for the latch to rotate and slide, a spring being clamped between a protrusion on the outer wall of the rotating rod (11) and the latch; An electric control slider (8) is slidably mounted on the side wall of the sliding frame (2), and an elastic telescopic rod (9) is fixedly mounted on the bottom end of the electric control slider (8). When the elastic telescopic rod (9) moves, it can contact the top of the rotating block (12) and drive it to rotate.

2. The sheet metal slotting machine with a clamping function according to claim 1, characterized in that: The paving mechanism comprises two sliding connectors (22) slidably mounted on the inner wall of the sliding frame (2), a pressure roller (23) is rotatably mounted between the two sliding connectors (22), a threaded rod (21) penetrating the sliding connector (22) is rotatably mounted on the top surface of the sliding frame (2), and a thread that can mesh with the threaded rod (21) is provided in the sliding connector (22).

3. The sheet metal slotting machine with a clamping function according to claim 2, characterized in that: A rotatably adjustable fixed shaft (25) is also installed between the two sliding connectors (22), and an elastic retractable pen (27) and a wiping cotton (28) are fixedly installed on the outer wall of the fixed shaft (25). Three laser emitters (20) are fixedly installed on the inner top surface of the sliding frame (2), one of which is on the same axis as the tool, and the other two are distributed on both sides of the tool, and the emitted lasers correspond to the lines drawn by the elastic retractable pens (27) on both sides.

4. The sheet metal slotting machine with a clamping function according to claim 3, characterized in that: The outer wall of the fixed shaft (25) and the outer wall of the pressure roller (23) are both provided with friction wheels (24) which are in close contact with each other, the side wall of the sliding connection member (22) is provided with a limiting arc groove (26), and the side wall of the friction wheel (24) located on the fixed shaft (25) is fixed with a limiting block which can slide in the limiting arc groove (26).

5. The sheet metal slotting machine with a clamping function according to claim 4, characterized in that: Image detectors (7) are provided on both sides of the storage plate (4), and the image detectors (7) are connected to the electric control slider (8) via electrical signals.

6. The sheet metal slotting machine with a clamping function according to claim 1, characterized in that: The top surface of the rotating block (12) is provided with a V-shaped groove into which the bottom end of the elastic telescopic rod (9) can be inserted.

7. The sheet metal slotting machine with a clamping function according to claim 3, characterized in that: An anti-vibration device is provided at the connection between the elastic telescopic pen (27) and the fixed shaft (25).

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