An apparatus and method for single-process hole-edge machining

Abstract

A device and method for single-process hole edge processing, the device comprising: a jig base; two standard cylinders, the two standard cylinders being fixed to the jig base, each standard cylinder having a movable rod provided with a height-equalizing bolt; an upper cover plate having a rotation hole in the middle, the rotation hole being sleeved on the movable rod, the upper cover plate being positioned at a preset height of one standard cylinder by the height-equalizing bolt and being rotatable along the movable rod; a first positioning port and a second positioning port being respectively provided on both sides of the upper cover plate, the first positioning port and the second positioning port respectively clamping the movable rod of the other standard cylinder in a first working state and a second working state and being positioned by the other height-equalizing bolt; a product placement seat fixed to the jig base. Utilizing the present invention, the two processes of outer edge processing and internal hole processing can be combined into one process, thus unifying the benchmark and improving product processing accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of single-process hole edge processing, in particular to a device and method for single-process hole edge processing. Background Art

[0002] In existing technology, the processing of many products requires two separate steps. For example, one step involves machining the internal hole and another for the outer edge. These two steps require two separate clamping steps, resulting in inconsistent machining datums and the impact of fixture accuracy in both steps. The existing solution to this problem is to minimize the deviation in the clamping datums between the two steps by improving the fixture accuracy and stability of both steps, thereby improving product processing accuracy. This places high demands on the operator's clamping skills, fixture manufacturing accuracy, and individual process accuracy. Furthermore, the secondary clamping step can lead to inconsistent machining datums, resulting in reduced processing accuracy. This negative impact cannot be completely eliminated, inevitably resulting in higher costs and lower product yields. In other words, there is significant room for improvement in both costs and product yields. For example, in existing technology, for hole edge machining, the entire outer ring is first machined, then disassembled and transferred to the next step for hole machining. Specifically, the first step involves machining the entire outer ring, positioning the outer edge using a rough datum, with the center serving as the machining datum. The second process involves machining internal holes. Hole machining uses the outer edge of the previous process as the reference for positioning, and re-clamping uses the center of the outer contour as the machining reference. The positioning reference changes between the two processes: the first process uses the outer contour of the blank, while the second process uses the outer contour of the previous process. While the machining reference remains the product center, the changes in the positioning reference and the machining tolerances of the first process lead to deviations in the contour centers between the two processes, affecting machining accuracy. Furthermore, the separation of the two processes requires product transfer, potentially saving labor and time. Summary of the Invention

[0003] The purpose of the present invention is to provide a device and method for single-process hole edge processing, which can overcome the above-mentioned problems existing in the prior art, starting from a unified processing benchmark, taking into account both cost and yield, thereby saving transfer time and clamping time between product processes and improving product yield.

[0004] In order to solve the above technical problems, the present invention constructs a device for single-process hole edge processing, including: a jig base; a product placement seat fixed on the jig base, two standard cylinders equidistantly installed on both sides of the product placement seat on the jig base, each of the movable rods of the standard cylinder is provided with an equal height bolt, and also includes an upper cover plate with a rotating hole in the middle, the rotating hole is positioned at a preset height of the cylinder movable rod by one of the equal height bolts and the upper cover plate can be rotated around the movable rod, so that in the first working state, the clamping part acts on the workpiece on the product placement seat by rotating through another equal height bolt to clamp the movable rod of the standard cylinder, and in the second working state, the processing part acts on the workpiece on the product placement seat by rotating through another equal height bolt to clamp the movable rod of the standard cylinder.

[0005] In one embodiment of the present invention, a movable snap ring is further included; a groove for clamping the movable snap ring is formed on the product placement seat.

[0006] In one embodiment of the present invention, a first positioning port and a second positioning port are respectively provided on both sides of the upper cover plate, a clamping portion is provided between the upper cover plate rotation hole and the first positioning port, a processing portion is provided between the upper cover plate rotation hole and the second positioning port, and a plurality of through holes for processing are provided on the processing portion.

[0007] In one embodiment of the present invention, the rotating hole is sleeved on the movable rod of one of the standard cylinders, and the first positioning port and the second positioning port on both sides of the upper cover plate respectively have a structure for engaging with the movable rod of the other standard cylinder. The first positioning port and the second positioning port respectively clamp the movable rod of the other standard cylinder in the first working state and the second working state and are positioned by the other equal height bolt.

[0008] In one embodiment of the present invention, the hollow cavity of the product placement seat is connected to a vacuum suction nozzle, which is connected to a vacuum negative pressure source through a vacuum control switch, and is used to form negative pressure on the product placement seat to adsorb the workpiece.

[0009] In one embodiment of the present invention, a cylinder control switch is further included, wherein the input port of the cylinder control switch is connected to a pressure gas source, and the cylinder control switch has two output ports, port A and port B. The two standard cylinders respectively have one air nozzle connected to port A of the cylinder control switch, and another air nozzle connected to port B of the cylinder air nozzle control switch. The two air nozzles of the standard cylinders are arranged upward and downward along the vertical direction of the standard cylinder.

[0010] In one embodiment of the present invention, the upper air nozzles of the two standard air cylinders are at the same distance from port A of the cylinder control switch, and the lower air nozzles of the two standard air cylinders are at the same distance from port B of the cylinder control switch.

[0011] According to another aspect of the present invention, a single-process hole edge processing method is provided, using the single-process hole edge processing device provided by the present invention, comprising the following steps:

[0012] S2) The raw material to be processed is tightly adsorbed on the product placement seat by using negative pressure through the vacuum control switch;

[0013] S3) Turn the upper cover plate to the pressing part and start the two standard cylinders at the same time, so that both standard cylinders pull the upper cover plate downward to press the raw material;

[0014] S4) processing the outer edge of the raw material;

[0015] S5) Close the cylinder and turn the upper cover to the processing part, and start the two standard cylinders at the same time, so that the standard cylinders at both ends pull the upper cover downward to press the raw material;

[0016] S6) Processing the holes in the rough material.

[0017] In the above embodiment of the method of the present invention, before step S2, the method further includes:

[0018] S11) Pull out the movable snap ring from the product placement seat and clean the remaining processing debris in the device;

[0019] S12) Check the device to ensure that all parts are connected securely;

[0020] S13) Insert the movable snap ring horizontally into the groove of the product placement seat, ensuring that it is inserted to the bottom with no gap above or below.

[0021] In the above embodiment of the method of the present invention, step S2 includes:

[0022] S21) placing the master mold in close contact with the rough material and the fixture base, and roughly positioning the rough material;

[0023] S22) turning on the vacuum control switch to absorb the wool material onto the surface of the product placement seat through the vacuum suction nozzle;

[0024] S23) Remove the template.

[0025] The present invention provides a device and method for single-process hole edge processing, which can be implemented to complete product processing on the same machine by optimizing the fixture and processing procedures. Therefore, the human resources and time required for transferring products are saved, and the two processes of outer edge processing and internal hole processing are merged into one process, saving the clamping time between product processes, avoiding the problem of deviation in the contour center of the two processing processes, unifying the benchmark, and improving product processing accuracy, while taking into account cost and yield. The two processes of the prior art need to be processed in two stations or even two factories. The present invention completes product processing on the same machine by optimizing the fixture and processing procedures. Therefore, the human resources and time required for transferring products are saved, and because the two processes are merged into one process, the benchmark is unified and the product processing accuracy is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a first schematic diagram of a device for single-step hole edge processing according to an embodiment of the present invention;

[0027] Figure 2 is a second schematic diagram of the device for single-step hole edge processing according to an embodiment of the present invention;

[0028] Figure 3 Schematic diagram of the device for single-step hole edge processing in an embodiment of the present invention processing the outer edge of a workpiece rough material;

[0029] Figure 4 This is a schematic diagram of a device for single-step hole edge processing according to an embodiment of the present invention processing the center of a workpiece rough material;

[0030] Figure 5 Schematic diagram of the gas path of the device for single-step hole edge processing in an embodiment of the present invention. DETAILED DESCRIPTION

[0031] The unified description of each reference numeral in each figure is as follows:

[0032] 1 fixture base, 2 standard cylinder, 3 upper cover, 4 air nozzle, 5 product placement seat, 6 equal height bolts, 7 vacuum suction nozzle, 8 movable retaining ring, 9 cylinder movable rod, 10 vacuum control switch, 11 cylinder control switch, 31 first positioning port, 32 second positioning port, 33 clamping part, 34 processing part, 35 rotating hole, 51 groove.

[0033] The technical solution of this patent is further described in detail below with reference to the accompanying drawings and in combination with specific implementation methods.

[0034] In the prior art, for two-step processing of workpieces such as circular cross-sections, the outer circle is usually processed first in its entirety, and then disassembled and transferred to the next process for hole processing. Among them: the first process: processes the entire outer circle, positions the outer edge with a rough reference, and uses the center as the processing reference; the second process: processes the internal holes, positions the holes with the outer edge processed in the previous process as the reference, and re-clamps with the center of the outer contour as the processing reference. In the two processes, the positioning reference changes: the first process positions the outer contour of the blank, and the second process positions the outer contour processed in the previous process. The processing reference is the center of the product, but due to the change in the positioning reference and the processing tolerance of the first process. There is a deviation in the contour center of the two processes, which affects the processing accuracy. At the same time, since the two processes are processed separately, the product needs to be transferred, and there is room for saving manpower and time costs.

[0035] like Figures 1 to 2 As shown, in an embodiment of the present invention, a device for single-process hole edge processing provided by the embodiment of the present invention includes a jig base 1, which is used to fix all components and determine the spacing positions of each component. After being pressed by a code, the main body is fixed on the processing equipment. The jig base 1 is provided with a product placement seat 5 for placing hole edge processing products. Two standard cylinders 2 are respectively installed on both sides of the product placement seat 5. Each standard cylinder 2 has a cylinder air nozzle 4, and an equal height bolt 6 is respectively provided on the movable rod of each standard cylinder 2; the position where the product placement seat 5 places the workpiece to be processed is connected to a hollow cavity, and the hollow cavity is connected to a vacuum suction nozzle 7. The vacuum suction nozzle 7 is connected to a vacuum negative pressure source for forming negative pressure at the workpiece placement position to adsorb the workpiece. The two standard cylinders 2 respectively have an air nozzle 4 connected to the A port of the cylinder control switch 11, and another air nozzle 4 is connected to the B port of the cylinder air nozzle control switch. In this embodiment, the air path diagram of the standard cylinder 2 and the jig base 1 is as shown in FIG. Figure 5 shown.

[0036] In an embodiment of the present invention, a device for single-process hole and edge processing also includes an upper cover plate 3, a rotating hole 35 is opened in the middle, and a first positioning port 31 and a second positioning port 32 are provided at both ends. A clamping portion 33 for clamping the workpiece is provided between the first positioning port 31 and the rotating hole 35, and a processing portion 34 for processing the workpiece is provided between the rotating hole 35 and the second positioning port 32. The processing portion 34 has multiple processing holes or auxiliary holes. Figure 1 The rotation hole 35 of the upper cover plate 3 is positioned on the cylinder movable rod 9 of a standard cylinder 2 through the equal height bolt 6, so that the entire upper cover plate 3 is at a preset height of a standard cylinder 2 and can rotate along the cylinder movable rod 9. Figure 1 In the state, when the first positioning port 31 on one side of the upper cover 3 is rotated counterclockwise to engage with the movable rod of another standard cylinder 2, the pressing portion 33 presses the workpiece on the top of the product placement seat 5; Figure 1In this state, when the second positioning port 32 on the other side of the upper cover 3 is rotated clockwise to engage with another cylinder movable rod 9, the processing portion 34 is located at the processing hole on the top of the product placement seat 5, providing a processing channel for the workpiece. Figure 5 In other words, in the first working state, the first positioning hole 31 clamps the movable rod of the other standard cylinder 2 and is positioned by another equal-height bolt 6; in the second working state, the second positioning hole 32 clamps the movable rod of the other standard cylinder 2 and is positioned by another equal-height bolt 6. In both cases, the equal-height bolt 6 can be tightened to secure the upper cover 3 to the movable rod of the standard cylinder 2, ensuring that the upper cover 3 can rotate smoothly without significant up and down sliding. The upper cover 3 is made of a highly rigid material, and its bottom ends are located at the same level. Because significant up and down sliding of the upper cover may cause the glass product to shatter when pressed down, the contact surface of the upper cover 3 with the glass is covered with soft adhesive to prevent scratches on the product.

[0037] In a single-step hole edge processing device provided by an embodiment of the present invention, assembly can be performed as follows: Prepare a jig base 1, two standard cylinders 2, four cylinder nozzles 3, and a product placement base 5. Connect the jig base 1 to the components with only a few screws to facilitate subsequent adjustment and fixation. Then, secure the top cover 3 to one of the cylinder movable rods 9 and tighten the equal-height bolts 6 to ensure smooth rotation without noticeable up-and-down slippage. This could cause the product to break when pressed down.

[0038] Insert the movable snap ring 8 into the corresponding groove 51 of the product placement seat 5 and adjust the position to ensure a relatively tight fit. After adjusting the position of the product placement seat 5 relative to the fixture base 1, tighten the bolts connecting the two components. Adjust the position of the two standard cylinders 2 so that the clearances are in the correct position when the upper cover 3 is pressed against the product placement seat 5. Then tighten the bolts connecting the standard cylinders 2 to the fixture base 1. Finally, install the air nozzle on the product placement seat 5 to connect to the vacuum tube, which is then connected to the vacuum negative pressure source.

[0039] like Figures 3 to 4As shown, it is driven by a standard air cylinder 2. When the processed product uses the upper cover plate 3, the negative pressure adsorption from the vacuum negative pressure source ensures that the processing coordinates do not shift, and the position before and after the replacement remains unchanged, which effectively guarantees the processing accuracy. Due to the sole reliance on vacuum suction, the cutting force of the product when the grinding wheel is used to process the product will cause the product to shift or break. Therefore, it is necessary to add a downward pressure structure to fix the product so that it does not move, reduce vibration and improve processing accuracy. However, adding a downward pressure structure will inevitably increase the structure above the product. The added downward pressure structure will block the processing tool, and if the entire product is avoided, a cut-off structure will be formed around it, which cannot be achieved. Therefore, the structures at both ends of the upper cover plate 3 are different, which is also to coordinate the two steps of the processing process. One end avoids the air hole and two of its edges for processing, and the other end avoids the air and processes the other two edges.

[0040] exist Figure 5 A schematic diagram of the air circuit of a single-step hole edge machining device according to an embodiment of the present invention is shown. Two manual control switches are used to control the on / off of the vacuum air source and the movement of the standard air cylinders 2, respectively. Specifically, there is a vacuum control switch 10 connected to a vacuum negative pressure air source, and a cylinder control switch 11 connected to a 0.4 MPa air source. The input port of the vacuum control switch 10 is connected to the vacuum negative pressure air source, while the output port of the vacuum control switch 10 is connected to a vacuum suction nozzle 7, which is used to create negative pressure on the workpiece placement area 5 where it is placed to absorb the workpiece. The cylinder control switch 11 has a 0.4 MPa air source at its input and ports A and B at its output. Port A is connected to the upper nozzles 4 of the two standard air cylinders 2, while port B is connected to the lower nozzles 4 of the two standard air cylinders 2. These ports control the synchronous raising and lowering of the cylinder rods 9 of the two standard air cylinders 2. To ensure this, the connecting air pipes between the two standard air cylinders 2 and the cylinder control switch 11 must be of the same length to prevent delays in the cylinders' movement, which could cause the cover plate to be misaligned with the product when pressed down. This ensures balanced pressure and maximum contact. Furthermore, maintaining the maximum contact area can withstand vibrations during processing and reduce the possibility of product breakage. Finally, after connecting the air circuit, the cylinder's movement speed and pressure must be adjusted to the appropriate state.

[0041] In the single-process hole edge processing device of the embodiment of the present invention, it also includes: a movable clamping ring 8; a groove 51 ( Figure 2). Since the upper cover plate 3 is respectively provided with a pressing part 33 and a processing part 34; the pressing part 33 is arranged between the first positioning port 31 and the rotating hole 35, and the processing part 34 is arranged between the second positioning port 32 and the rotating hole 35. The pressing part 33 is a flat plate; the processing part 34 is provided with a variety of openings for processing. Furthermore, each standard cylinder 2 is provided with two air nozzles 4, and the two air nozzles 4 are vertically arranged in the vertical direction. Preferably, the top of the product placement seat 5 is provided with an air suction hole and a processing groove. When processing the outer edge, the pressing part 33 covers the processing groove. The side of the product placement seat 5 is provided with a vacuum suction nozzle 7 for connecting to an external vacuum negative pressure air source. The air suction hole tightly absorbs the wool. In addition, the processing debris in the processing groove can be cleaned after pulling out the movable retaining ring 8. Inserting the movable retaining ring 8 can also prevent the downward pressure from being too large to cause the product placement seat 5 to deform.

[0042] Insert the movable snap ring 8 into the groove 51 corresponding to the product placement seat 5, and adjust and confirm the position so that it can be relatively tightly clamped in the groove 51. After adjusting the position of the product placement seat 5 relative to the fixture base 1, tighten the connecting bolts between the two components. Adjust the position of the two standard cylinders 2 so that the clearances are in the appropriate position when the upper cover 3 is pressed against the product placement seat 5, and then tighten the connecting bolts between the two standard cylinders 2 and the fixture base 1. Finally, install the air nozzle on the product placement seat 5 to connect the vacuum tube. The vacuum control switch 10 and the cylinder control switch 11 are both manually controlled switches, which respectively control the on and off of the vacuum air source and the operation of the standard cylinder 2. The connecting air pipes between the two standard cylinders 2 and the cylinder control switch 11 must ensure the same length to avoid a delay in the operation between the two cylinders, which may cause the cover to be non-parallel to the product when pressed down. Finally, after connecting the air circuit, the cylinder operation speed and pressure must be adjusted to the appropriate state. After determining the material installation position, flip the vacuum control switch 10 to adsorb it onto the product placement seat 5. Then flip the cylinder control switch 11 to activate the cylinder, driving the upper cover plate 3 to press down on the material to be processed. Do not flip the vacuum control switch 10 when replacing the upper cover plate 3 during processing. Wait until the processing is complete before flipping the vacuum control switch 10 to remove the finished product.

[0043] In the single-process hole edge processing method according to an embodiment of the present invention, the single-process hole edge processing device provided by the present invention is used, including the following steps:

[0044] S1) Preparation: 1) Remove the movable snap ring 8 from the product holder 5 and clean any remaining machining debris from the device; 2) Inspect the device to ensure that all connections are secure; 3) Insert the movable snap ring 8 horizontally into the groove 51 of the product holder 5, ensuring that it is fully inserted and that there is no significant gap between the upper and lower parts. If there is any gap, replace the component immediately.

[0045] S2) Place the material: Use a template to roughly locate the material placement position, and make the template tightly contact the material and the fixture base. Turn on the vacuum control switch 10 to absorb the material with negative pressure. After confirming that the material is firmly adsorbed on the surface of the product placement seat 5, remove the template;

[0046] S3) Turn the upper cover plate 3 to the processing and pressing part 33 (the edge end is shown in the figure below). Make close contact with the cylinder rod. After removing both hands from the cylinder, start the cylinder control switch 11 and simultaneously start the two standard cylinders 2, so that both standard cylinders 2 pull the upper cover plate 3 downward. Finally, check again whether the raw material is pressed tightly.

[0047] S4) Start the program and start processing the outer edge (first processing);

[0048] S5) Observe and check the processing status. After confirming that it is correct, switch the cylinder control switch 11 and rotate the upper cover 3 to the processing part 34 (the other end, as shown below) to make close contact with the cylinder rod. After keeping both hands away from the cylinder, start the cylinder control switch 11 and start the two standard cylinders at the same time, so that the cylinders at both ends pull the upper cover 3 downward. Finally, check again whether the raw material is pressed tightly.

[0049] S6) Start the program and start processing the inner hole of the product (second processing);

[0050] S7) Observe the processing status, remove the product after confirming that it is correct, and repeat step 1.

[0051] In another method of an embodiment of the present invention, a single-process hole edge processing method includes the following steps:

[0052] Through the vacuum control switch, the raw material to be processed is sucked to the product placement seat 5 with negative pressure;

[0053] Turn the upper cover plate 3 to the pressing part 33, start the two cylinders 2 through the cylinder control switch 11, so that both cylinders 2 pull the upper cover plate 3 downward, press the raw material, and then process the outer edge of the raw material;

[0054] Close the cylinder and turn the upper cover plate 3 to the processing part 34, start the two standard cylinders 2, so that the standard cylinders 2 at both ends pull the upper cover plate 3 downward, press the rough material, and then process the inner hole position of the rough material.

[0055] The specific beneficial effects of the device and method of the present invention have been described in detail above and will not be repeated here. After adopting the single-process hole edge processing device and method provided by the present invention, experimental data comparison was carried out. The present invention only provides some selected detection dimension data. After technical optimization, the processing improvement data comparison is shown in Table 1. Table 1 is a comparison table of data before and after the processing improvement of the present invention:

[0056] By comparing the variance and standard deviation of the data, the variance and standard deviation of the improved technology are smaller, which means that the processing accuracy and stability are higher than the original processing.

[0057] In summary, the single-step hole edge processing device and method provided by the present invention, by optimizing the fixture and processing steps, completes two product processing steps on the same machine. This saves manpower and time required for product transfer. Furthermore, by combining the two processes into one, a unified benchmark is established, improving product processing accuracy.

[0058] It should be noted that, in the description of the present invention and its embodiments, "workpiece" and "rough material" may refer to the same object.

[0059] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention. Any reference numerals in the claims shall not be construed as limiting the claims involved.

[0060]

[0061] Table 1 is a comparison table of data before and after the improvement using the present invention

[0062] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A device for single-process hole edge processing, characterized in that: include: A jig base (1); a product placement seat (5) fixed on the jig base (1); two standard cylinders (2) equidistantly mounted on both sides of the product placement seat (5) on the jig base (1); a height-equalizing bolt (6) provided on the movable rod of each standard cylinder (2); and an upper cover plate (3) with a rotation hole (35) opened in the middle; the upper cover plate (3) is positioned at a preset height of the movable rod of the standard cylinder (2) through one of the height-equalizing bolts (6) and can be rotated around the movable rod through the rotation hole (35) so as to be rotated to position and clamp the cylinder movable rod (9) of another standard cylinder (2) through another height-equalizing bolt (6); in a first working state, the pressing portion (33) on the upper cover plate (3) acts on the workpiece on the product placement seat (5); and in a second working state, the processing portion (34) on the upper cover plate (3) acts on the workpiece on the product placement seat (5).

2. The device for single-process hole edge processing according to claim 1, characterized in that: It also includes a movable snap ring (8); a groove (51) for clamping the movable snap ring (8) is provided on the product placement seat (5).

3. The device for single-step hole edge processing according to claim 2, characterized in that: A first positioning opening (31) and a second positioning opening (32) are respectively provided on both sides of the upper cover plate (3); a pressing portion (33) is provided between the rotating hole (35) and the first positioning opening (31); a processing portion (34) is provided between the rotating hole (35) and the second positioning opening (32); and the processing portion (34) is provided with a plurality of through holes for processing.

4. The device for single-step hole edge processing according to claim 3, characterized in that: The rotating hole (35) is sleeved on the cylinder movable rod (9) of one of the standard cylinders (2), and the first positioning port (31) and the second positioning port (32) on both sides of the upper cover plate (3) respectively have a structure for engaging the movable rod of the other standard cylinder (2). The first positioning port (31) and the second positioning port (32) respectively engage the movable rod of the other standard cylinder (2) in the first working state and the second working state and are positioned by the other equal height bolt (6).

5. The device for single-step hole edge processing according to claim 2, characterized in that: The hollow cavity of the product placement seat (5) is connected to a vacuum suction nozzle (7), which is connected to a vacuum negative pressure source through a vacuum control switch and is used to form a negative pressure on the product placement seat (5) to absorb the workpiece.

6. The device for single-step hole edge processing according to claim 2, characterized in that: It also includes a cylinder control switch (11), the input port of the cylinder control switch (11) is connected to a pressure gas source, the cylinder control switch (11) has two output ports, port A and port B, the two standard cylinders (2) each have a nozzle (4) connected to port A of the cylinder control switch (11), and another nozzle (4) connected to port B of the cylinder nozzle control switch, and the two nozzles (4) of the standard cylinder (2) are arranged vertically up and down along the standard cylinder (2).

7. The device for single-step hole edge processing according to claim 6, characterized in that: The upper air nozzles of the two standard air cylinders (2) are at the same distance from the A port of the air cylinder control switch (11), and the lower air nozzles of the two standard air cylinders (2) are at the same distance from the B port of the air cylinder control switch (11).

8. A method for single-process hole edge processing, characterized in that: Using the device according to claim 1, comprising the following steps: S2) controlling the vacuum switch (10) to tightly adsorb the raw material to be processed onto the product placement seat (5) by negative pressure; S3) The upper cover plate (3) is turned to the pressing portion (33), and the two standard cylinders (2) are started at the same time, so that the two standard cylinders (2) pull the upper cover plate (3) downward to press the raw material; S4) processing the outer edge of the raw material; S5) Close the cylinder and turn the upper cover plate (3) to the processing part (34), and start the two standard cylinders (2) at the same time, so that the standard cylinders (2) at both ends pull the upper cover plate (3) downward to press the raw material; S6) Processing the holes in the rough material.

9. The method according to claim 8, characterized in that Before step S2, the method further includes: S11) pulling out the movable snap ring (8) from the product placement seat (5) and cleaning the remaining processing debris in the device; S12) Check the device to ensure that all parts are connected securely; S13) Insert the movable snap ring (8) horizontally into the groove (51) of the product placement seat (5), ensuring that it is inserted to the bottom without any gap above or below.

10. The method according to claim 8, characterized in that: The step S2 comprises: S21) placing the master mold in close contact with the rough material and the fixture base, and roughly positioning the rough material; S22) turning on the vacuum control switch (10) and adsorbing the wool material onto the surface of the product placement seat (5) through the vacuum suction nozzle (7); S23) Remove the template.

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