An adsorbing rotary punching unit

Abstract

The utility model provides a kind of adsorption rotary punching unit, belong to punching equipment technical field, punch head, it is provided with the punching cavity with opening in one end on it, and the outer wall of punch head is provided with the adsorption hole that is communicated with punching cavity and is communicated;Temporary storage part, it includes temporary storage cavity, adsorption hole is set in temporary storage cavity and is communicated with temporary storage cavity setting, and temporary storage cavity is communicated with negative pressure suction device;Rotary drive part, it is fixedly arranged on punch head and it is transmission connection with punch head to drive punch head rotation;Punch driving part, it is transmission connection with rotary drive part, for driving rotary drive part to move linearly;The advantage is that the real-time adsorption and centralized collection of chip in punching process are realized, at the same time, rotary drive part drives punch head to rotate synchronously in stamping process, and the cutting ability is enhanced.

Description

Technical Field

[0001] This utility model belongs to the technical field of punching equipment and relates to a temporary adsorption punching head. Background Technology

[0002] In modern precision manufacturing, especially in the electronics, automotive, home appliance, packaging, and light industry sectors, the demand for efficient, clean, and high-quality punching of metal or non-metal sheets (such as aluminum sheets, stainless steel, cardboard, corrugated paper, and composite materials) is growing. Traditional punching processes mostly employ mechanical stamping or laser cutting. Among these, mechanical punching is widely used due to its low cost and high efficiency, but it is prone to problems such as splattering chips, numerous burrs at the hole openings, and easy clogging of the molds during processing, especially when processing thin sheets or tough materials. These issues severely affect the product's appearance quality and the automation of subsequent processes. Utility Model Content

[0003] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a punching head that synchronously adsorbs punching chips under negative pressure.

[0004] The objective of this utility model can be achieved through the following technical solution: an adsorption rotary punching unit, comprising:

[0005] A punching head is provided with a punching cavity with an opening at one end, and a through adsorption hole is provided on the outer wall of the punching head and connected to the punching cavity.

[0006] A temporary storage section includes a temporary storage cavity, wherein the adsorption hole is disposed in the temporary storage cavity and communicates with the temporary storage cavity, and the temporary storage cavity is connected to a negative pressure suction device;

[0007] A rotary drive component is fixedly mounted on the punch head and is connected to the punch head in a transmission manner to drive the punch head to rotate.

[0008] A punching drive component, which is connected to the rotary drive component for driving the rotary drive component to move linearly.

[0009] In the aforementioned adsorption rotary punching unit, the negative pressure suction device is configured to have a first working mode and a second working mode, wherein the negative pressure adsorption force in the first working mode is less than the negative pressure adsorption force in the second working mode.

[0010] In the aforementioned adsorption rotary punching unit, the maximum linear distance of the adsorption holes along the radial direction of the punching head is greater than the diameter of the punching cavity.

[0011] In the aforementioned adsorption rotary punching unit, a stroke drive component is also included. The stroke drive component is drivenly connected to the punching drive component, and the transmission direction of the stroke drive component is parallel to the linear movement direction of the punching head.

[0012] In the aforementioned adsorption rotary punching unit, the output shaft of the rotary drive is detachably connected to the punching head.

[0013] In the aforementioned adsorption rotary punching unit, the output shaft of the rotary drive is provided with an installation cavity with an open end, the connecting end of the punching head can extend into the installation cavity, and the output shaft of the rotary drive is provided with a positioning hole, in which a positioning part is detachably provided, and the positioning part is connected to the punching head.

[0014] In the above-mentioned adsorption rotary punching unit, the output shaft end of the rotary drive extends into the temporary storage cavity, and the temporary storage part is provided with a disassembly hole, and a sealing part is detachably provided in the disassembly hole.

[0015] In the above-mentioned adsorption rotary punching unit, a mounting part is fixedly provided on the output shaft of the punching drive, the output shaft of the rotary drive passes through the mounting part and is rotatably connected to the mounting part, the temporary storage part is sleeved on the mounting part and can slide relative to the mounting part, and an elastic element is provided between the temporary storage part and the mounting part.

[0016] In the above-mentioned adsorption rotary punching unit, the punching drive component includes a drive cylinder, and a proximity sensor is provided on the cylinder housing of the drive cylinder and is communicatively connected to the drive cylinder.

[0017] In the above-mentioned adsorption rotary punching unit, an air suction pipe is fixedly provided on the temporary storage part and connected to the temporary storage cavity.

[0018] Compared with existing technologies, the beneficial effects of this invention are as follows: By combining the punching head with a temporary storage section having a temporary storage cavity, and setting an adsorption hole on the outer wall of the punching head that communicates with the punching cavity, real-time adsorption and centralized collection of chips during the punching process are achieved. The negative pressure suction device forms a negative pressure airflow channel through the temporary storage cavity and the adsorption hole, which can quickly suck the generated metal or non-metal chips into the temporary storage cavity at the moment of punching, effectively avoiding chip splashing, accumulation, or jamming in the hole opening and die gap, significantly improving the cleanliness of the processing environment and the surface quality of the product. At the same time, the rotary drive component drives the punching head to rotate synchronously during the punching process, enhancing the cutting ability, reducing the punching force, improving the penetration efficiency of high hardness or toughness materials, and reducing burr generation. The synergistic work of the punching drive component and the rotary drive component enables the device to have both high-efficiency punching and precision cutting functions. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure in the middle;

[0021] Figure 3 yes Figure 1 One of the schematic diagrams of the planar structure in the diagram;

[0022] Figure 4 yes Figure 1 A three-dimensional structural diagram of the punch head;

[0023] Figure 5 yes Figure 1 The second schematic diagram of the planar structure in the diagram.

[0024] In the diagram, 100 is the punching head; 101 is the punching cavity; 102 is the suction hole; 200 is the temporary storage part; 201 is the temporary storage cavity; 202 is the disassembly and assembly hole; 203 is the sealing part; 300 is the rotary drive component; 301 is the positioning hole; 400 is the punching drive component; 401 is the second slide rail; 402 is the second slider; 403 is the mounting part; 404 is the guide post; 405 is the elastic element; 406 is the proximity sensor; 500 is the stroke drive component; 501 is the mounting bracket; 502 is the lead screw; 503 is the nut seat; 504 is the first slider; 505 is the first slide rail; 600 is the suction pipe; and 601 is the fixing block. Detailed Implementation

[0025] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] like Figures 1-5 As shown, an adsorption rotary punching unit includes:

[0028] A punching head 100 is provided with a punching cavity 101 with an opening at one end, and a through adsorption hole 102 is provided on the outer wall of the punching head 100 and is connected to the punching cavity 101.

[0029] The temporary storage section 200 includes a temporary storage cavity 201, an adsorption hole 102 is disposed in the temporary storage cavity 201 and communicates with the temporary storage cavity 201, and the temporary storage cavity 201 is connected to the negative pressure suction device.

[0030] A rotary drive 300 is fixedly mounted on the punch head 100 and is connected to the punch head 100 in a transmission manner to drive the punch head 100 to rotate.

[0031] The punching drive 400 is connected to the rotary drive 300 for driving the rotary drive 300 to move linearly.

[0032] In this embodiment, by combining the punching head 100 with a temporary storage section 200 having a temporary storage cavity 201, and by providing an adsorption hole 102 communicating with the punching cavity 101 on the outer wall of the punching head 100, real-time adsorption and centralized collection of chips during the punching process are achieved. The negative pressure suction device forms a negative pressure airflow channel through the temporary storage cavity 201 and the adsorption hole 102, which can quickly suck the generated metal or non-metal chips into the temporary storage cavity 201 at the moment of punching, effectively avoiding chip splashing, accumulation, or jamming in the hole opening and die gap, significantly improving the cleanliness of the processing environment and the surface quality of the product. At the same time, the rotary drive 300 drives the punching head 100 to rotate synchronously during the punching process, enhancing the cutting ability, reducing the punching force, improving the penetration efficiency of high hardness or toughness materials, and reducing burr generation. The coordinated work of the punching drive 400 and the rotary drive 300 enables the device to have both high-efficiency punching and precision cutting functions.

[0033] Specifically, the negative pressure suction device is configured to have a first working mode and a second working mode, wherein the negative pressure adsorption force in the first working mode is less than the negative pressure adsorption force in the second working mode.

[0034] In the first working mode, the negative pressure adsorption force is relatively small, sufficient to stably draw in paper scraps (or lightweight non-metallic material debris) generated during the punching process through the adsorption hole 102 and transport them to the temporary storage chamber 201 for temporary storage, preventing debris from scattering during processing and ensuring a clean working environment and workpiece surface quality. When the accumulation of paper scraps in the temporary storage chamber 201 reaches a preset amount, or the cumulative number of punching operations reaches a set threshold, the system automatically switches to the second working mode. At this time, the negative pressure adsorption force is significantly enhanced, generating a stronger airflow impact and suction effect, thoroughly removing the paper scraps accumulated in the temporary storage chamber 201 and transporting them to a remote debris collection device or filtration system, achieving automatic emptying of the temporary storage chamber 201 and system reset. This dual-stage negative pressure control strategy takes into account both the low-power stable adsorption requirements during daily processing and ensures the reliability of periodic efficient cleaning, avoiding decreased adsorption efficiency or equipment failure due to debris blockage.

[0035] The switching between the first and second working modes can be triggered by time, number of punching cycles, pressure sensor feedback, or displacement sensor detection of the material accumulation height in the temporary storage chamber 201.

[0036] Further specified, along the radial direction of the punch head 100, the maximum linear distance of the adsorption hole 102 is greater than the diameter of the punch cavity 101.

[0037] In this embodiment, the opening diameter of the punching cavity 101 is the actual punching diameter during processing. An adsorption hole 102, penetrating the inner punching cavity 101, is provided on the outer wall of the punching head 100. Along the radial direction of the punching head 100, the maximum linear distance of the adsorption holes 102 is greater than the opening diameter of the punching cavity 101 (i.e., the punching diameter), ensuring that the distribution area of ​​the adsorption holes 102 completely covers the punching cutting edge. At the instant the punch cuts the material to form paper scraps, the negative pressure airflow acts rapidly through the adsorption holes 102 located outside the cut, acting on the chips that have not yet fallen or scattered, guiding them into the punching cavity 101 and transporting them to the connected temporary storage cavity 201. This significantly improves the capture efficiency of lightweight material (such as paper, cardboard, film, etc.) debris, effectively preventing chip blockage, entanglement, or contamination of the workpiece surface.

[0038] In a further preferred embodiment, the device also includes a stroke drive 500, which is drivenly connected to the punching drive 400, and the transmission direction of the stroke drive 500 is parallel to the linear movement direction of the punching head 100.

[0039] Because the working stroke of the cylinder and other punching drive components 400 is fixed, the range of motion at its output end is limited, making it difficult to directly adapt to materials of different thicknesses. By setting an independent stroke drive component 500 (such as a servo electric actuator, lead screw module, linear motor, or lifting cylinder), the entire cylinder and its connected punching head 100 can be moved vertically as a whole, thereby adjusting the initial installation height of the punching head 100. This structure allows the punching head 100 to adapt to workpieces of different thicknesses, such as cardboard, film, and composite materials, without the need to change molds or reassemble equipment, greatly improving the processing adaptability and production flexibility of the equipment.

[0040] Specifically, the stroke drive component 500 is a servo motor, which is fixed on the mounting bracket 501. A lead screw 502 is fixedly mounted on the output shaft of the servo motor, a nut seat 503 is mounted on the lead screw 502, and a first slider 504 is fixedly mounted on the nut seat 503. The punching drive component 400 is fixedly mounted on the first slider 504. A first guide rail 505 is mounted on the mounting bracket 501, and the first slider 504 is slidably connected to the first guide rail 505. The punching drive component 400 is a drive cylinder, which is fixed on the first slider 504. A second guide rail 401 is mounted on the first slider 504, and a second slider 402 is slidably mounted on the second guide rail 401. The rotation drive component 300 is fixed on the second slider 402, and the output shaft of the drive cylinder is fixed to the second slider 402.

[0041] The output shaft of the rotary drive 300 is detachably connected to the punch head 100 (e.g., via threaded connection, quick-change clip, flange connection, or magnetic interface), enabling modular design and quick replacement of the punch head 100. When it is necessary to change punching specifications (e.g., hole diameter, cutting edge), clean and maintain the punch head 100, or switch to a dedicated punch for different material properties (e.g., paper, film, composite board), it is not necessary to disassemble the entire drive mechanism; simply remove the punch head 100 from the mounting section 403 and replace it, significantly shortening changeover time and improving equipment operating efficiency. Simultaneously, this structure facilitates individual repair or replacement of vulnerable parts (punch head 100), reducing maintenance costs.

[0042] The output shaft of the rotary drive 300 has an open mounting cavity at one end, into which the connecting end of the punch head 100 can extend. The output shaft of the rotary drive 300 also has a positioning hole 301, within which a positioning part is detachably mounted. This positioning part is connected to the punch head 100. A secure connection is achieved through axial fastening (such as screws, clasps, or threads). When the punch head 100 is in place, the positioning part can extend into the positioning hole 301, achieving precise circumferential or spatial positioning between the punch head 100 and the mounting part 403.

[0043] When replacing the punch head 100, the positioning part and the positioning hole 301 cooperate to achieve "quick alignment and one-time clamping", which significantly improves the efficiency of changeover and assembly consistency; it ensures that the flow channels between the adsorption hole 102 and the temporary storage cavity 201 are aligned, avoiding negative pressure leakage or blockage of the chip removal channel due to misalignment, thereby maintaining efficient and stable adsorption performance.

[0044] The positioning part can be a positioning pin or a positioning screw. When a positioning pin is used, it is usually a cylindrical elastic pin or a tight-fitting steel pin, which can be inserted into the corresponding positioning hole 301 on the side wall of the punch head 100 during the installation of the punch head 100 to achieve rapid circumferential positioning and anti-rotation function; when a positioning screw is used, it can pass through the temporary storage part 200 and be screwed into the positioning hole 301 (which is a threaded hole) on the punch head 100. While achieving precise positioning, it also provides a certain axial preload, enhancing connection rigidity and vibration resistance, and is especially suitable for high-speed rotary cutting or high-precision stamping scenarios.

[0045] The output shaft end of the rotary drive 300 extends into the temporary storage cavity 201, forming a compact integrated layout between the punch head 100 and the rotary drive structure. This shortens the transmission chain, avoids vibration or sway caused by excessive length of the punch head 100, and improves system rigidity and rotational accuracy. The temporary storage section 200 is provided with a disassembly hole 202, and a sealing part 203 is detachably installed inside the disassembly hole 202. When it is necessary to install or replace the punch head 100, the sealing part 203 can be removed to open the disassembly hole 202, providing an operating channel for operators or automated tools. This facilitates access from the side to the connection between the punch head 100 and the output shaft, enabling quick disassembly and assembly of the punch head 100.

[0046] Preferably, a mounting portion 403 is fixedly provided on the output shaft of the punching drive component 400. The output shaft of the rotary drive component 300 passes through the mounting portion 403 and is rotatably connected to it, ensuring good coaxiality and radial support rigidity of the rotary output shaft during high-speed rotation. This avoids vibration, uneven wear, or jamming caused by excessive cantilever length or insufficient support. The temporary storage portion 200 is fitted onto the mounting portion 403 and can slide relative to it. An elastic element 405 (such as a compression spring, disc spring, or elastic rubber pad) is provided between the temporary storage portion 200 and the mounting portion 403. This makes the temporary storage portion 200 a "floating mounting unit," providing a certain elastic compensation capability during the installation or operation of the punching head 100.

[0047] like Figure 1 As shown, in one specific embodiment, the mounting part 403 is fixed on the second slider 402, and a guide post 404 is fixedly provided on the mounting part 403. A spring is sleeved on the guide post 404 as an elastic element 405. The other end of the guide post 404 extends into the temporary storage cavity 201 and can slide relative to the temporary storage cavity 201.

[0048] Furthermore, the punching drive component 400 includes a drive cylinder, and a proximity sensor 406 is provided on the cylinder housing of the drive cylinder and is in communication with the drive cylinder.

[0049] In this application, the punching drive component 400 includes a drive cylinder. A proximity sensor 406 is mounted on the cylinder housing of the drive cylinder. The proximity sensor 406 is communicatively connected to the control system (such as a PLC or pneumatic solenoid valve assembly) of the drive cylinder for real-time detection of the cylinder piston position. The position of the proximity sensor 406 is adjustable on the cylinder housing. By changing its axial mounting position, the end point of the cylinder piston stroke can be set, thereby achieving stepless adjustment and precise control of the drive cylinder's working stroke.

[0050] When processing materials of different thicknesses or changing punches of different lengths, there is no need to change the structure of the cylinder itself or the air supply parameters. Only the position of the proximity sensor 406 needs to be adjusted to dynamically set the effective stroke of the punching action, ensuring that the punch penetrates the material while avoiding excessive punching. By reasonably setting the sensor position, the cylinder piston can receive a stop or return signal before reaching the mechanical limit position (such as the cylinder head or cylinder bottom), thereby avoiding hard impact between the piston and the cylinder end cover, effectively reducing vibration, noise and wear of seals, and extending the service life of the cylinder.

[0051] A suction pipe 600 is fixedly installed on the temporary storage section 200 and connected to the temporary storage chamber 201. The other end can be connected to an external negative pressure suction device (such as a vacuum pump, a central dust collection system, or a multi-stage cyclone dust collector). Through the suction pipe 600, negative pressure can be stably introduced into the temporary storage chamber 201, and a complete negative pressure airflow channel is formed through the adsorption holes 102 on the punching head 100 and the punching chamber 101. Lightweight debris such as paper scraps and dust generated during the punching process are immediately adsorbed, enter the punching chamber 101 through the adsorption holes 102, and fall into the temporary storage chamber 201. Finally, driven by the airflow, it is transported to the external debris collection device along the suction pipe 600.

[0052] It is worth mentioning that a fixing block 601 is also fixedly installed on the mounting part 403 for connection with the suction pipe 600. Since the temporary storage part 200 is sleeved on the mounting part 403 and can slide relative to it, and the suction pipe 600 is connected to the temporary storage part 200 and communicates with the temporary storage cavity 201, if the suction pipe 600 is not effectively fixed during the up-and-down floating or sliding process of the temporary storage part 200, it is easy to swing, pull or even fall off, affecting the airtightness and the safe operation of the equipment. By setting a fixing block 601 (such as a pipe clamp seat, U-shaped clamp or quick-lock seat) on the fixed mounting part 403, the middle section or root of the suction pipe 600 can be rigidly or elastically clamped, realizing a reasonable layout of "dynamic end connected to the floating temporary storage part 200, static end constrained by the fixed mounting part 403".

[0053] It should be noted that in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly defined. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0054] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0055] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An adsorption rotary punching unit, characterized in that, include: A punching head is provided with a punching cavity with an opening at one end, and a through adsorption hole is provided on the outer wall of the punching head and connected to the punching cavity. A temporary storage section includes a temporary storage cavity, wherein the adsorption hole is disposed in the temporary storage cavity and communicates with the temporary storage cavity, and the temporary storage cavity is connected to a negative pressure suction device; A rotary drive component is fixedly mounted on the punch head and is connected to the punch head in a transmission manner to drive the punch head to rotate. A punching drive component, which is connected to the rotary drive component for driving the rotary drive component to move linearly.

2. The adsorption rotary punching unit according to claim 1, characterized in that, The negative pressure suction device is configured to have a first working mode and a second working mode, wherein the negative pressure adsorption force in the first working mode is less than the negative pressure adsorption force in the second working mode.

3. The adsorption rotary punching unit according to claim 1, characterized in that, Along the radial direction of the punch head, the maximum linear distance of the adsorption holes is greater than the diameter of the punch cavity.

4. The adsorption rotary punching unit according to claim 1, characterized in that, It also includes a stroke drive component, which is drivenly connected to the punching drive component, and the transmission direction of the stroke drive component is parallel to the linear movement direction of the punching head.

5. The adsorption rotary punching unit according to claim 1, characterized in that, The output shaft of the rotary drive is detachably connected to the punching head.

6. The adsorption rotary punching unit according to claim 5, characterized in that, The output shaft of the rotary drive is provided with a mounting cavity with an opening at one end. The connecting end of the punch head can extend into the mounting cavity. The output shaft of the rotary drive is provided with a positioning hole. A positioning part is detachably provided in the positioning hole and is connected to the punch head.

7. The adsorption rotary punching unit according to claim 6, characterized in that, The output shaft end of the rotary drive extends into the temporary storage cavity, and the temporary storage part is provided with a disassembly hole, in which a sealing part is detachably provided.

8. The adsorption rotary punching unit according to claim 1, characterized in that, A mounting part is fixedly provided on the output shaft of the punching drive component. The output shaft of the rotary drive component passes through the mounting part and is rotatably connected to the mounting part. The temporary storage part is sleeved on the mounting part and can slide relative to the mounting part. An elastic element is provided between the temporary storage part and the mounting part.

9. The adsorption rotary punching unit according to claim 1, characterized in that, The punching drive component includes a drive cylinder, and a proximity sensor is provided on the cylinder housing of the drive cylinder and is communicatively connected to the drive cylinder.

10. The adsorption rotary punching unit according to claim 1, characterized in that, An air suction pipe is fixedly installed on the temporary storage section and communicates with the temporary storage cavity.

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