Press machine for punching rubber gasket and punching method

Abstract

The invention discloses a press machine for punching a rubber gasket and a punching method, and relates to the technical field of press machines, the press machine comprises a punching head, a cutter head and a die located below the punching head, the die is provided with a circular punching hole, and the press machine further comprises a laser cutting device arranged below the die; the laser cutting device comprises a rotating shaft and a power device used for driving the rotating shaft to rotate, an annular rotating disc is installed on the rotating shaft, the annular rotating disc comprises at least one support penetrating through the circle center of the rotating disc, a sliding rail is arranged on the support, a sliding block is installed on the sliding rail, and a laser device with the vertically-upward emitting direction is installed on the sliding block. By combining two modes of lower laser cutting and upper stamping of the press machine, a laser cutting seam can be pressed by a stamping cutter to be continuously expanded to realize punching, stamping and punching operation of a thicker rubber gasket is realized, the stamping and punching device can be realized by refitting on the basis of an existing press machine, the equipment transformation cost is low, and the production efficiency is high. The operation process is simple and safe.

Description

Technical Field

[0001] This invention belongs to the field of press technology, specifically relating to a press and stamping method for punching holes in rubber gaskets. Background Technology

[0002] Seismic isolators for building earthquake resistance are building structures used for earthquake protection. They are pre-embedded in the building and consist of multiple centrally perforated rubber pads overlapping a central lead core, with pre-embedded steel plates welded to both ends. The rubber pads are processed by using a press with a cutting tool to punch holes in the center. In a new type of seismic isolator developed by the applicant, to improve performance, the thickness of a single rubber pad may reach over 15 mm. With existing presses, the increased thickness of the rubber pad makes punching more difficult. During the cutting process, the uncut portion of the rubber pad is prone to lateral displacement under the pressure of the cutting tool, leading to skewed punching.

[0003] In existing technologies, laser cutting can be used to cut rubber gaskets. However, for thicker rubber gaskets, high-power lasers are required for cutting. The equipment itself is expensive, the operation is complex, and the operation of high-power lasers is dangerous. Cutting thick rubber can easily generate a large amount of toxic fumes, requiring corresponding upgrades and modifications to the operating environment, power supply, and factory buildings, resulting in high overall economic costs. Summary of the Invention

[0004] In view of the defects of the existing technology in the stamping and cutting of thicker rubber gaskets, the present invention discloses a press for punching rubber gaskets and a stamping method based on the modification of an existing press.

[0005] The press for punching rubber gaskets according to the present invention includes a punch head, a cutter head mounted on the punch head, and a mold located below the punch head, the mold having a circular punch hole, and also includes a laser cutting device disposed below the mold. The laser cutting device includes a rotating shaft and a power device for driving the rotating shaft to rotate. An annular turntable is mounted on the rotating shaft. The annular turntable includes at least one support that passes through the center of the annular turntable. A slide rail is provided on the support. A slider that can slide and lock on the slide rail is mounted on the slide rail. A laser with a vertically upward emission direction is mounted on the slider. The center of the annular turntable and the center of the punching hole are projected to coincide in the vertical direction. The press also includes a controller that is connected to the punch head, laser power supply, and power unit via signal.

[0006] Preferably, the bracket is a cross bracket intersecting at the center of the annular turntable, and four sliders are evenly distributed on the cross bracket, with the laser mounted on each slider.

[0007] Preferably, a dust extraction hole is installed below the annular turntable.

[0008] Preferably, it also includes a recycling device, which includes a robotic arm disposed next to the laser cutting device. One end of the robotic arm is a robotic arm pivot, and the other end is provided with a recycling disk. The height of the recycling disk is higher than the upper end of the laser but lower than the lower end of the punching hole. The controller is signal-connected to the drive device of the robotic arm pivot.

[0009] Preferably, the device further includes a calibration device comprising at least three laser receivers fixed above the cutter head, the laser receivers being evenly distributed on the outer edge of the cutter head, and the laser receivers being signal-connected to the controller.

[0010] Preferably, it also includes a displacement sensor mounted on the annular turntable and connected to the controller signal.

[0011] Preferably, the calibration device includes an annular mounting component, which is fixed to the back of the cutter head by multiple support rods. Multiple laser receivers are evenly distributed on the annular mounting component, and the receiving heads of the laser receivers are located at the outer edge of the cutter head.

[0012] The present invention also discloses a method for punching holes in rubber gaskets using a press, which, based on the press, includes the following steps: Step 1. Fix the cutter head and the mold; Step 2. Adjust the position and orientation of each laser on the circular turntable; Step 3. Fix the rubber pad to be cut onto the mold; Step 4. Turn on the annular turntable and the laser. The rotation of the annular turntable drives the laser to cut the bottom of the rubber pad. Step 5. Turn off the laser and the circular turntable. Step 6. The stamping head drives the cutter head to stamp, and the stamped rubber disc falls down; Step 7. Recycle the rubber disc; reset the stamping head; Step 8. Replace the rubber gasket to be cut, and repeat steps 3 to 7.

[0013] Preferably, the press further includes a recycling device, which includes a robotic arm disposed next to the laser cutting device. One end of the robotic arm is a robotic arm pivot, and the other end is provided with a recycling disc. The height of the recycling disc is higher than the upper end of the laser but lower than the lower end of the punching hole. The controller is signal-connected to the robotic arm pivot. Step 3 further includes: rotating the robotic arm to position the recycling tray in an area other than below the die punching hole; Step 5 further includes: after turning off the laser and the annular turntable, rotating the robotic arm to rotate the recovery disc to below the die stamping hole; The specific method for recycling the rubber discs in step 7 is as follows: the recycling tray is rotated out to collect the rubber discs that fall onto the recycling tray. Preferably, the press further includes a calibration device, which includes at least three laser receivers fixed above the cutter head. The laser receivers are evenly distributed on the outer edge of the cutter head, and the laser receivers are signal-connected to the controller. Step 2 further includes: Step 21. Turn on the calibration device and the annular turntable, turn on the currently adjusted laser to the minimum power, and rotate the annular turntable one revolution. If all laser receivers on the calibration device receive the laser signal, then adjust the next laser; otherwise, continue to adjust the current laser. Perform step 21 by iterating through all lasers; Step 4 further includes: during the process of step 4, if any laser receiver of the calibration device receives a laser signal, the controller will turn off the laser power and sound an alarm.

[0014] This invention combines two methods: laser cutting from below and stamping from above on a press. This allows the laser cutting kerf to be further expanded by the stamping tool to achieve punching, enabling the punching and punching of thicker rubber gaskets. This invention can be implemented by modifying existing presses with commercially available low-power lasers, making the modification of the press, mold, and cutter head simple, the equipment modification cost low, and the operation process simple and safe. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a specific embodiment of the press for punching rubber gaskets according to the present invention; Figure 2 This is a cross-sectional schematic diagram of a specific embodiment of the press for punching rubber gaskets according to the present invention; Figure 3 This is a schematic diagram of a specific embodiment of the calibration device described in this invention; Figure 4 This is a schematic diagram of a specific embodiment of the recycling device described in this invention; Figure 5 This is a schematic diagram of a specific embodiment of the slider described in this invention; Figure 6 This is a schematic diagram of a specific embodiment of the control system of the press described in this invention; The figures are labeled as follows: 1-Punching head, 2-Cutter head, 3-Rubber pad, 4-Annular turntable, 5-Rotating shaft, 6-Calibration device, 7-Mold, 8-Dust suction hole, 9-Recovery device, 10-Laser, 11-Fall arresting platform, 31-Rubber disc, 41-Bracket, 42-Slider, 51-Rotating shaft motor, 91-Robotic arm motor, 92-Recovery disc, 93-Robotic arm, 94-Robotic arm rotating shaft, 61-Laser receiver, 62-Annular mounting piece, 63-Support rod, 421-Slider body, 422-Locking nut, 423-Connecting seat. Detailed Implementation

[0016] To more intuitively and clearly describe the specific details of the technical solution of the present invention, a detailed description will be provided below in conjunction with specific embodiments and example drawings.

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0018] A specific embodiment of the press for punching rubber gaskets according to the present invention is as follows: Figure 1 and Figure 2 As shown, it includes a punch head 1, a cutter head 2 mounted on the punch head, and a mold 7 located below the punch head. The mold 7 has a circular punching hole and also includes a laser cutting device disposed below the mold. The laser cutting device includes a rotating shaft and a power device for driving the rotating shaft to rotate, such as... Figure 2 As shown, the power unit is a rotary shaft motor 51, and an annular turntable 4 is mounted on the rotary shaft. The annular turntable includes at least one bracket 41 that passes through the center of the annular turntable. A slide rail is provided on the bracket, and a slider 42 that can slide and lock on the slide rail is mounted on the slide rail. A laser 10 with a vertically upward emission direction is mounted on the slider. The annular turntable 4 and the center of the punch hole are projected to coincide in the vertical direction.

[0019] During cutting, first adjust the position of slider 42 on the slide rail so that laser 10 is aligned with the cutting edge of the punching hole on the mold. After alignment, lock the slider on the slide rail. Then, place the rubber pad 3 to be punched on top of the mold 7, turn on the motor to make the rotating shaft drive the annular turntable to rotate. When only one laser is installed, the annular turntable rotates once to complete part of the cutting below the rubber pad, forming a cutting kerf. The controllable cutting depth of existing low-power lasers for rubber is generally within 10 mm. Adjusting the laser power can adjust the cutting kerf depth. After cutting, the annular turntable stops rotating, and the punching head of the press moves down with the cutter head to squeeze the rubber pad for punching.

[0020] The annular turntable design helps stabilize the laser's posture during rotation and ensures perfectly circular cuts. The slide rails and sliders allow for adjustment of the cutting diameter to accommodate different cutting radii. The laser is positioned below the mold because, firstly, the space above is limited by the punch head; more importantly, during the punching process, the rubber pad is pre-cut below, and then subjected to pressure from the tool above. Under this pressure, the center of the rubber pad bends downwards, naturally widening the pre-cut kerf and accelerating the cutting process. This ensures a natural connection between the kerf and the secondary cut from the punching tool, preventing misalignment between the two cuts and incomplete cutting.

[0021] One laser can be installed. To save rotational travel and reduce vibration and displacement caused by rotation, two lasers can be installed, one on each side of the center of the bracket. Alternatively, more than two lasers can be installed, such as... Figure 4 In the specific embodiment shown, the bracket 41 is a cross bracket with four sliders 42. Each slider is equipped with a laser, for a total of four lasers. The position of each laser is adjusted so that the four lasers are located on the same circumference. Each time a cut is made, the annular turntable only needs to rotate 90 degrees to complete the cut, saving rotation time and simplifying wiring. The length of the wires required for the lasers only needs to be sufficient for the annular turntable to rotate 90 degrees. During laser cutting, the annular turntable can rotate alternately in clockwise and counterclockwise directions, thereby saving wiring length.

[0022] like Figure 5The diagram shows a specific embodiment of the slider 42, including a slider body 421. Multiple locking nuts 422 are provided on the top of the slider body 421 for sliding connection with the slide rails on the support. A connecting seat 423 is provided below the slider for mounting and fixing the laser 10. The connecting seat is equipped with a device for fixing the laser, typically any of the following: a clamp, fixture, or mounting hole, and has wire holes for wiring. Depending on the specific structure of the laser, the slide rails on the support are a pair, with two locking nuts 422 fastened to each slide rail. The slide rail passes through the gap between the locking nuts and the slider body. When sliding, the gap between the locking nuts and the slider body is relatively large, allowing the slider 42 to move freely. When fixing is required, each locking nut 422 is tightened downwards to clamp the slide rails with the locking nuts 422 and the slider body 421, thereby fixing the slider. Using multiple locking nuts can improve the stability of the laser when the annular turntable rotates.

[0023] Because a laser is installed below the punching hole, the rubber disc 31 that falls after cutting needs to be blocked and retrieved to prevent it from hitting the laser. Figure 2 and Figure 4 The specific embodiment shown also includes a recycling device, which includes a robotic arm 93 located next to the laser cutting device. One end of the robotic arm 93 is a robotic arm pivot 94, and the other end is provided with a recycling disk 92. The height of the recycling disk 92 is higher than the upper end of the laser but lower than the lower end of the punching hole. The robotic arm pivot 94 can be driven to rotate by a robotic arm motor 91 located below.

[0024] When the laser is cutting, the robotic arm pivot 94 rotates so that the robotic arm and the recovery tray 92 are located outside the laser cutting area. After the cutting is completed, the laser is turned off, and the robotic arm pivot 94 rotates, causing the robotic arm to drive the recovery tray 92 to rotate below the punching hole. After the punching head completes the punching stroke, the cut rubber disc 31 falls onto the recovery tray 92. As the robotic arm rotates outward, it carries the rubber disc out of the laser cutting area, where it is picked up and recycled by other robotic arms or manually, avoiding the danger of workers operating barehanded in the laser cutting area.

[0025] Since this invention uses a combination of laser cutting and stamping cutting, it is essential to ensure that the directions of the stamping cutting and laser cutting are completely aligned. Figure 1In the specific embodiment shown, a calibration device is also provided for calibrating the laser cutting direction. This device includes multiple laser receivers 61 fixed above the cutter head. The laser receivers are evenly distributed on the outer edge of the cutter head 2, typically fixed by welding or adhesive clamping. Usually, at least three are evenly distributed on the circular boundary of the cutter head's outer edge. For frustum-shaped cutters that are thicker at the top and thinner at the bottom, the calibration device can be fixed to the upper end of the thinner section, so that the laser receivers face downwards. The calibration device is more suitable for cylindrical cutters with uniform diameters at both ends, such as... Figure 3 As shown, for cylindrical cutting tools, a calibration device can be mounted and fixed on the back of the tool. The calibration device includes an annular mounting member 62, the outer diameter of which is the same as or close to the diameter of the tool disc. Multiple laser receivers 61 are fixed on the annular mounting member. The annular mounting member can be directly welded to the back of the tool disc, or it can be fixed to the back of the tool disc by multiple support rods 63, so that the receiving head of the laser receiver is located exactly at the outer edge boundary of the tool disc, and the laser receiving head is higher than the tool body, thus not affecting the cutting process. The width of the annular mounting member 62 can be relatively wide, and the projection of its outer edge boundary in the vertical direction is larger than the boundary of the punch hole, which can block the laser from rising upwards.

[0026] During calibration, both mold 7 and cutter head 2 are installed correctly, and no rubber pads are placed on the mold. The laser to be calibrated is turned on, emitting the laser at the lowest power to avoid damaging the equipment above the press. The annular turntable rotates one revolution, and the laser beam passes through the punching hole on the mold from bottom to top and exits upwards. If each laser receiver receives a laser signal, it indicates that the laser position is accurate, the emitted laser is not blocked by the punching hole and cutter head during rotation, and the direction is set perfectly vertical. If any laser receiver does not receive a signal, it indicates that the laser position or orientation is abnormal, and the laser's position and orientation on the slide rail need to be adjusted.

[0027] In the case of multiple lasers, only one laser is turned on for rotational calibration at a time. After calibration is completed, the next laser is calibrated.

[0028] The calibration utilizes the technical principle of aligning the laser, the punch hole boundary, and the laser receiver as a single point, and employs a multi-point calibration method on the circumference to achieve precise calibration of the laser emission direction.

[0029] Cutting operations will only proceed after all lasers have been calibrated.

[0030] After setting up the calibration device, the present invention can also use the calibration device to further perform alarm and shutdown operations for malfunctions during the cutting process.

[0031] This invention addresses the laser pre-cutting of thicker rubber gaskets. If an operator mistakenly installs a thinner rubber gasket on the mold, the laser cutting will completely cut through the gasket. During the cutting operation, if the laser completely cuts through the rubber gasket while rotating, and the laser moves below a laser receiver, the receiver will receive a laser signal. If any laser receiver receives a laser signal during the cutting operation, it will trigger the controller to quickly shut off the laser power, preventing further laser emission and preventing the laser from continuing to be emitted towards the press cover component above. Simultaneously, the completely cut rubber gasket will fall and strike the laser. Figure 2 and Figure 4 In the specific embodiment shown, a fall arrestor 11 higher than the laser is provided in the center of the annular turntable 4 to catch falling rubber pads and prevent the rubber pads from falling and hitting the laser if the recovery device fails to reach its position. The height of the fall arrestor should be lower than the recovery disc to avoid obstructing the recovery disc.

[0032] In this invention, using as Figure 6 The control system shown realizes cutting and monitoring during the cutting process. It includes a controller, a rotary motor, a stamping motor and a robotic arm motor connected to the controller, as well as a laser power supply and a laser receiver connected to the controller. The controller starts the rotary motor according to the built-in program and sets the control logic so that the laser power supply is turned on only when the rotary motor is turned on, while the stamping motor and robotic arm motor are not turned on.

[0033] During the calibration before cutting, the laser is manually operated to run at the lowest power and the shaft motor is turned on. Each time the laser shines on a laser receiver, an alarm device is used to notify the operator that a laser signal has been received. Once all laser receivers have received the laser signal, the calibration of the current laser is complete, and the calibration of the next laser continues until all lasers are calibrated.

[0034] In cutting mode, if any laser receiver receives a laser signal, the controller will shut off the power to all lasers and sound an alarm. The controller can be connected to alarm devices such as horns and alarm lights to indicate the alarm.

[0035] After the laser power is turned on and the cutting is completed, the spindle motor and laser power are turned off simultaneously. The stamping motor and robotic arm motor are turned on simultaneously or sequentially. Before the stamping is completed, the robotic arm motor moves the recovery tray to below the stamping hole. After the stamping is completed, the robotic arm motor swings the recovery tray back to the initial position from below the stamping hole.

[0036] The controller can be connected to various sensors, such as displacement sensors and laser receivers, via short-range wireless communication methods, such as UWB (Ultra-Wideband) signals or Bluetooth signals. It can be connected to various motors and laser power supplies via wired connections. The controller's signal acquisition, processing, and programming control of various motors are existing technologies in this field.

[0037] Continuous laser emission without rotation can damage the irradiated area. In a preferred embodiment, a displacement sensor connected to the controller signal is installed on the annular turntable. The controller only turns on the laser power when the displacement sensor detects displacement, i.e., the annular turntable rotates. This prevents the spindle motor from receiving the start command but failing to rotate the annular turntable due to system or mechanical failure, thus preventing the laser power from continuously burning the rubber gasket and causing it to burn. By adding a displacement sensor, the laser power is forcibly shut off when the annular turntable is not rotating, improving the safety of the device operation.

[0038] Figure 1 In the specific embodiment shown, a dust suction hole 8 is installed below the annular turntable, and the other end of the dust suction hole 8 is connected to an air suction pump for sucking up the fumes and dust generated during laser cutting and stamping.

[0039] When using the press for punching rubber gaskets described in this invention, a specific punching method includes the following steps: Step 1. Fix the cutter head and the mold; Step 2. Adjust the position and orientation of each laser on the circular turntable; Step 3. Fix the rubber pad to be cut onto the mold; Step 4. Turn on the annular turntable and the laser. The rotation of the annular turntable drives the laser to cut the bottom of the rubber pad. Step 5. Turn off the laser and the circular turntable; Step 6. The stamping head drives the cutter head to stamp, and the stamped rubber disc falls down; Step 7. Recycle the rubber disc; reset the stamping head; Step 8. Replace the rubber gasket to be cut, and repeat steps 3 to 7.

[0040] For a press equipped with a recovery device, the above stamping method is optimized as follows: Step 3 further includes: rotating the robotic arm to position the recycling tray in an area other than below the die punching hole; Step 5 also includes: after turning off the laser and the annular turntable, rotating the robotic arm to rotate the recycling disc to below the die stamping hole; The specific steps for recycling rubber discs in step 7 are as follows: the recycling tray rotates out, and the rubber discs that fall on the recycling tray are recycled. This enables the automatic recovery of the cut and falling rubber discs.

[0041] For a press equipped with a calibration device, the above stamping method is optimized as follows: Step 2 further includes: Step 21. Turn on the calibration device and the annular turntable, turn on the currently adjusted laser to the minimum power, and rotate the annular turntable one revolution. If all laser receivers on the calibration device receive the laser signal, then adjust the next laser; otherwise, continue to adjust the current laser. Perform step 21 by iterating through all lasers; Step 4 further includes: during the process of step 4, if any laser receiver of the calibration device receives a laser signal, the controller will turn off the laser power and sound an alarm.

[0042] This enables the calibration of the laser before cutting and the alarm when the laser cuts through the rubber pad during the cutting process.

[0043] For presses equipped with displacement sensors, in step 4, the laser power is turned off as long as the displacement sensor does not detect the movement of the annular turntable, thereby preventing the laser from continuously emitting at a single point.

[0044] In conjunction with a press equipped with a recovery device and a calibration device, a complete typical stamping method according to the present invention in actual operation is as follows: Step 1. Fix the cutter head and the mold; Step 2. Adjust the position and orientation of each laser on the annular turntable, and perform step 21 for each laser; Step 21. Turn on the calibration device and the circular turntable, turn the currently adjusted laser to the minimum power, and rotate the circular turntable one revolution. If all laser receivers on the calibration device receive the laser signal, adjust the next laser; otherwise, continue adjusting the current laser. Perform step 21 by iterating through all lasers; Step 3. Fix the rubber pad to be cut onto the mold; rotate the robotic arm to position the recycling tray outside the area below the mold's punching hole; Step 4. Turn on the annular turntable and the laser. The rotation of the annular turntable drives the laser to cut the bottom of the rubber pad. During Step 4, if any laser receiver of the calibration device receives a laser signal, the controller will turn off the laser power and sound an alarm. Step 5. Turn off the laser and the annular turntable. After turning off the laser and the annular turntable, rotate the robotic arm to rotate the recovery disc to below the die punching hole. Step 6. The stamping head drives the cutter head to stamp, and the stamped rubber disc falls down; Step 7. The recycling tray rotates out, collecting the rubber discs that have fallen onto it; the stamping head resets. Step 8. Replace the rubber gasket to be cut, and repeat steps 3 to 7.

[0045] This invention combines two methods: laser cutting from below and stamping from above on a press. This allows the laser-cut kerf to be further expanded by the stamping tool to achieve punching, enabling the punching and punching of thicker rubber gaskets. This invention can be implemented by purchasing commercially available small lasers and modifying existing presses without modifying the press, molds, or cutter heads. The equipment modification cost is low, and the operation process is simple and safe.

[0046] The foregoing descriptions are preferred embodiments of the present invention. Unless there is a clear contradiction between the preferred embodiments or a prerequisite for a particular preferred embodiment, the preferred embodiments can be arbitrarily combined and used. The embodiments and specific parameters described are only for clearly illustrating the inventor's invention verification process and are not intended to limit the patent protection scope of the present invention. The patent protection scope of the present invention is still determined by its claims. Similarly, any equivalent structural changes made based on the content of the specification of the present invention should also be included within the protection scope of the present invention.

Claims

1. A press for punching holes in rubber gaskets, comprising a punch head (1), a cutter disc (2) mounted on the punch head, and a die (7) located below the punch head (1), the die (7) having a circular punch hole, characterized in that, It also includes a laser cutting device located below the mold (7); The laser cutting device includes a rotating shaft (5) and a power device for driving the rotating shaft (5) to rotate. An annular turntable (4) is mounted on the rotating shaft (5). The annular turntable (4) includes at least one bracket (41) passing through the center of the annular turntable (4). A slide rail is provided on the bracket (41). A slider (42) that can slide and lock on the slide rail is mounted on the slide rail. A laser (10) with a vertically upward emission direction is mounted on the slider (42). The annular turntable (4) and the center of the punch hole are projected to coincide in the vertical direction. The press also includes a controller that is connected to the punch head, laser power supply, and power unit via signal.

2. The press for punching rubber gaskets as described in claim 1, characterized in that, The bracket (41) is a cross bracket that intersects at the center of the annular turntable. Four sliders (42) are evenly distributed on the cross bracket, and the laser (10) is installed on each slider (42).

3. The press for punching rubber gaskets as described in claim 1, characterized in that, A dust extraction hole (8) is installed below the annular turntable (4).

4. The press for punching rubber gaskets as described in claim 1, characterized in that, It also includes a recycling device (9), which includes a robotic arm (93) located next to the laser cutting device. One end of the robotic arm (93) is a robotic arm pivot (94), and the other end is provided with a recycling disk (92). The height of the recycling disk (92) is higher than the upper end of the laser (10) but lower than the lower end of the punch hole. The controller is signal connected to the drive device of the robotic arm pivot.

5. The press for punching rubber gaskets as described in claim 1, characterized in that, It also includes a calibration device (6), which includes at least three laser receivers (61) fixed above the cutter head (2). The laser receivers (61) are evenly distributed on the outer edge of the cutter head (2) and are signal connected to the controller.

6. The press for punching rubber gaskets as described in any one of claims 1, 4, and 5, characterized in that, It also includes a displacement sensor installed on the annular turntable (4) and connected to the controller signal.

7. The press for punching rubber gaskets as described in claim 5, characterized in that, The calibration device includes an annular mounting component (62), which is fixed to the back of the cutter head (2) by multiple support rods (63). Multiple laser receivers (61) are evenly distributed on the annular mounting component (62), and the receiving head of the laser receiver (61) is located at the outer edge of the cutter head (2).

8. A method for punching holes in a rubber gasket using a press, based on the press as described in claim 1, characterized in that, Includes the following steps: Step 1. Fix the cutter head (2) and the mold (7); Step 2. Adjust the position and orientation of each laser on the annular turntable (4); Step 3. Fix the rubber pad to be cut onto the mold (7); Step 4. Turn on the annular turntable (4) and turn on the laser (10). The annular turntable (4) rotates and drives the laser (10) to cut the bottom of the rubber pad. Step 5. Turn off the laser (10) and the annular disk (4); Step 6. The stamping head drives the cutter head (2) to stamp, and the stamped rubber disc falls down; Step 7. Recycle the rubber disc and reset the punch head (1); Step 8. Replace the rubber gasket to be cut, and repeat steps 3 to 7.

9. The stamping method as described in claim 8, characterized in that, The press also includes a recycling device, which includes a robotic arm (93) located next to the laser cutting device. One end of the robotic arm (93) is a robotic arm pivot (94), and the other end is provided with a recycling disc (92). The height of the recycling disc (92) is higher than the upper end of the laser (10) but lower than the lower end of the punching hole. The controller is signal-connected to the robotic arm pivot. Step 3 further includes: rotating the robotic arm (93) so that the recycling tray (92) is located in an area other than below the die stamping hole; Step 5 further includes: after turning off the laser (10) and the annular turntable (4), rotating the robotic arm (93) to rotate the recycling disc (92) to below the die stamping hole; The specific method for recycling the rubber discs in step 7 is as follows: the recycling disc (92) is rotated out to recycle the rubber discs that fall on the recycling disc (92).

10. The stamping method as described in claim 8, characterized in that, The press also includes a calibration device, which includes at least three laser receivers (61) fixed above the cutter head (2). The laser receivers (61) are evenly distributed on the outer edge of the cutter head (2), and the laser receivers (61) are connected to the controller signal. Step 2 further includes: Step 21. Turn on the calibration device (6) and the annular turntable (4), turn on the currently adjusted laser (10) to the minimum power, and make the annular turntable (4) rotate one round. If all laser receivers (61) on the calibration device (6) receive the laser signal, then adjust the next laser (10); otherwise, continue to adjust the current laser (10). Perform step 21 by iterating through all lasers; Step 4 further includes: during the process of step 4, if any laser receiver (61) of the calibration device (6) receives a laser signal, the controller will turn off the laser power and sound an alarm.

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