An automatic cutting milling machine for guide ring production

Abstract

The present invention relates to the technical field of milling machines, and in particular to an automatic cutting milling machine for guide ring production. Its technical solution includes: a machine tool and a workbench installed on the machine tool, and also includes a fixed table, the fixed table is detachably connected to the workbench, a plurality of suction holes are provided on the workbench, the suction holes are connected to a suction cup assembly through an air pipe, the plurality of suction cup assemblies are connected to a negative pressure chamber, the negative pressure chamber is connected to a vacuum pump, and the suction cup assembly protects the airtightness of the negative pressure chamber; the present invention can process the entire end face of the guide ring in a single operation, reducing the number of reciprocating fixations of the guide ring, which is beneficial to improving the processing effect and the accuracy of the guide ring positioning, thereby effectively improving the quality of the cutting process of the guide ring.

Description

Technical Field

[0001] The present invention relates to the technical field of milling machines, in particular to an automatic cutting milling machine for producing guide rings. Background Art

[0002] Guide rings are annular parts used to guide wires, ropes, or pipes through specific paths. They are commonly found in fishing rods, textile machinery, automation equipment, and other fields. Guide rings typically require high precision, high wear resistance, and good surface finish.

[0003] Guide rings require a milling machine to mill the upper and lower end faces of the guide rings, ensuring they are flat and smooth, and meet the design dimensions and surface roughness. The outer diameter of the guide rings is then milled or turned to ensure the diameter, roundness, and surface finish meet the design requirements. During machining, the guide rings must be secured, but the guide rings are relatively small. Clamping and securing the guide rings results in protrusions on the sides of the guide rings, which hinders continuous tool feed and interferes with the tool's movement path. Summary of the Invention

[0004] The purpose of the present invention is to address the problems existing in the background technology and to propose an automatic cutting milling machine for producing guide rings, which can fix the guide rings and will not interfere with the moving path of the tool.

[0005] The technical solution of the present invention is an automatic cutting milling machine for producing guide rings, comprising a machine tool and a workbench mounted on the machine tool, and further comprising:

[0006] A fixed platform, the fixed platform is detachably connected to the workbench, the workbench is provided with a plurality of suction holes, the suction holes are connected to a suction cup assembly through an air pipe, the plurality of suction cup assemblies are connected to a negative pressure chamber, the negative pressure chamber is connected to a vacuum pump, and the suction cup assembly protects the airtightness of the negative pressure chamber;

[0007] The suction cup assembly has two working states:

[0008] When the suction hole is covered with a workpiece, the negative pressure chamber is connected to the corresponding suction hole;

[0009] When the suction hole is not covered with a workpiece, the negative pressure cavity and the corresponding suction hole are blocked;

[0010] A dustproof module is installed on the suction cup assembly. The dustproof module includes a fan assembly. When the suction hole and the negative pressure chamber are blocked, the dustproof module connects the fan assembly with the suction hole, and when the suction hole and the negative pressure chamber are connected, the fan assembly and the suction hole are blocked.

[0011] Optionally, an air box is fixedly installed in the fixed platform, and a plurality of connecting holes corresponding to the suction holes are provided on the air box, and the connecting holes are connected to the suction holes through air pipes, and the suction cup assembly is installed inside the air box and connected to the connecting holes.

[0012] Optionally, the suction cup assembly includes a mounting block, flow holes arranged in sequence from top to bottom in the mounting block and connected to each other, a blocking hole with an inner diameter smaller than the flow hole, and a connecting hole connected to the negative pressure chamber, a first spring is fixedly installed in the blocking hole, a blocking block is fixedly installed on the first spring, the diameter of the blocking block is larger than the aperture of the blocking hole and smaller than the aperture of the flow hole and is located inside the flow hole, and the negative pressure chamber is connected to the vacuum pump through a pipe.

[0013] Optionally, a dustproof sheet is fixedly installed in the circulation hole, and the dustproof sheet is located above the blocking block.

[0014] Optionally, the dustproof module includes an adsorption hole provided in the circulation hole, a valve body is fixedly installed on the adsorption hole, a valve core is slidably installed in the valve body, a transmission mechanism is installed in the mounting block, and the transmission mechanism controls the valve core to enter or move away from the valve body as the blocking block rises and falls.

[0015] Optionally, the transmission mechanism includes a mounting groove provided in the mounting block, a pressure rod is slidably installed in the mounting groove, the pressure rod extends to the inside of the flow hole, a second spring is fixedly installed on the bottom of the pressure rod, the second spring is fixedly connected to the mounting groove, a transmission rod is fixedly installed on the pressure rod, and the transmission rod is fixedly connected to the valve core.

[0016] Optionally, a round tube is fixedly mounted on the valve body, and the round tube is fixedly connected to the fan assembly.

[0017] Optionally, a telescopic plate is fixedly mounted on the mounting groove, the transmission rod passes through the telescopic plate and is sealed, and the telescopic plate seals the mounting groove.

[0018] Optionally, the workbench includes a connection box that is detachably mounted on the workbench, a groove is provided in the connection box, a support plate is fixedly mounted in the groove, and a positioning assembly for positioning the guide ring is installed in the support plate and the connection box.

[0019] Optionally, the positioning assembly includes a plurality of guide grooves provided on the support plate, a positioning rod is slidably installed in the guide groove, a driving disk is rotatably installed in the connecting box, a connecting rod is rotatably installed on the positioning rod, the other end of the connecting rod is rotatably connected to the driving disk, a lifting platform is slidably installed in the connecting box, a worm gear and a worm that mesh with each other are rotatably installed on the lifting platform, the driving disk is coaxially fixedly connected to the worm gear, a motor is fixedly installed on the lifting platform, the output shaft of the motor is coaxially fixedly connected to the worm, a push rod motor is fixedly installed in the connecting box, and the output shaft of the push rod motor is fixedly connected to the lifting platform.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] The present invention combines the suction cup assembly, the vacuum pump and the suction hole to adsorb and fix the guide ring through the suction hole, thereby preventing the clamping part from adhering to the periphery of the guide ring, which causes the clamping part to interfere with the tool movement path when cutting the guide ring. The entire end face of the guide ring can be processed at a single time, reducing the number of times the guide ring is reciprocated and fixed, which is beneficial to improving the processing effect and the accuracy of the guide ring positioning, thereby effectively achieving the quality of the cutting processing of the guide ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is the structural diagram of the machine tool;

[0023] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0024] Figure 3 Schematic diagram of the position of the air deflector;

[0025] Figure 4 It is a schematic diagram of the structure inside the connection box;

[0026] Figure 5 Schematic diagram of the distribution of connection holes;

[0027] Figure 6 This is a schematic diagram of the location distribution of the installation blocks;

[0028] Figure 7 Schematic diagram of the structure of the suction cup assembly;

[0029] Figure 8 for Figure 7 A partial enlarged view of point B in the middle;

[0030] Figure 9 Schematic diagram of the positioning component structure Figure 1 ;

[0031] Figure 10 Schematic diagram of the positioning component structure Figure 2 .

[0032] Figure numerals: 1, machine tool; 101, workbench; 2, connection box; 201, groove; 202, support plate; 3, suction hole; 301, air box; 302, connection hole; 303, negative pressure chamber; 304, mounting block; 305, flow hole; 306, blocking hole; 307, connection hole; 308, first spring; 309, blocking block; 310, pipeline; 311, vacuum pump; 312, dustproof sheet; 313, adsorption hole; 314, valve body; 315, valve core ; 316, pressure rod; 317, second spring; 318, transmission rod; 319, round tube; 320, fan assembly; 321, mounting slot; 322, telescopic plate; 323, air pipe; 4, guide slot; 401, positioning rod; 402, drive plate; 403, connecting rod; 404, worm gear; 405, worm; 406, motor; 407, lifting platform; 408, push rod motor; 5, support rod; 501, air deflector; 502, fan; 503, delivery pipe. DETAILED DESCRIPTION

[0033] The technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0034] like Figures 1 to 2 and Figures 9 and 10 As shown, the present invention proposes an automatic cutting milling machine for guide ring production, comprising a machine tool 1 and a workbench 101 mounted on the machine tool 1, and further comprising a fixed table, which is detachably connected to the workbench 101. The workbench 101 comprises a connecting box 2 detachably mounted on the workbench 101, wherein a groove 201 is provided in the connecting box 2, wherein a supporting plate 202 is fixedly mounted in the groove 201. When processing the guide ring, the guide ring needs to be positioned and fixed. When installing the guide ring, the guide ring is first placed inside the supporting plate 202, and the supporting plate 202 and the connecting box 2 are fixedly mounted on the workbench 101. A positioning component for positioning the guide ring is installed inside, and the guide ring can be fixed by the positioning component. Since both end faces of the guide ring need to be processed, the guide ring needs to be taken out and fixed again after one of the end faces is processed. This may cause the fixed position of the guide ring to change, causing the moving path of the milling cutter to deviate from the path to be cut on the guide ring (the moving path of the milling cutter is controlled by the program, so the accuracy of the guide ring positioning needs to be ensured). In order to avoid this problem, the tool needs to be aligned again, which is not conducive to improving work efficiency.

[0035] Furthermore, the positioning assembly includes a plurality of guide grooves 4 provided on the support plate 202, a positioning rod 401 is slidably installed in the guide groove 4, a driving disk 402 is rotatably installed in the connecting box 2, a connecting rod 403 is rotatably installed on the positioning rod 401, and the other end of the connecting rod 403 is rotatably connected to the driving disk 402. By rotating the driving disk 402 to drive the plurality of connecting rods 403 to rotate, the connecting rod 403 can drive the positioning rod 401 to move along the guide groove 4, and then the plurality of positioning rods 401 can be moved closer to or away from each other, so that the circle formed by the plurality of positioning rods 401 can be enlarged or reduced. Since a through hole is provided at the center position of the guide ring, the center position of the guide ring can be positioned by a plurality of positioning rods 401 to ensure the accuracy of the guide ring positioning.

[0036] Among them, a lifting platform 407 is slidably installed in the connection box 2, and a worm wheel 404 and a worm 405 that mesh with each other are rotatably installed on the lifting platform 407. The driving disk 402 is coaxially fixedly connected to the worm wheel 404. A motor 406 is fixedly installed on the lifting platform 407. The output shaft of the motor 406 is coaxially fixedly connected to the worm 405. The worm 405 can be driven to rotate by the motor 406. The rotating worm 405 will drive the worm wheel 404 and the driving disk 402 to rotate, and then can drive multiple positioning rods 401. To move, a push rod motor 408 is fixedly installed in the connecting box 2, and the output shaft of the push rod motor 408 is fixedly connected to the lifting platform 407. When multiple positioning rods 401 are in contact with the inner wall of the guide ring, the positioning of the guide ring is completed, and then the guide ring can be fixed. After the guide ring is fixed, the lifting platform 407 can be driven downward by the push rod motor 408 to disengage the positioning rod 401 from the inner ring of the guide ring, which can prevent the positioning rod 401 from interfering with the moving path of the tool when the tool processes the inner ring of the guide ring.

[0037] like Figures 2 to 8 As shown, in this embodiment, a plurality of suction holes 3 are provided on the workbench 101, and rubber rings can be provided on the suction holes 3. The suction holes 3 are connected to a suction cup assembly through an air pipe 323, and the plurality of suction cup assemblies are connected to a negative pressure chamber 303. The negative pressure chamber 303 is connected to a vacuum pump 311. The suction cup assembly protects the airtightness of the negative pressure chamber 303. The inside of the negative pressure chamber 303 can be evacuated by the vacuum pump 311, so that the inside of the negative pressure chamber 303 is in a negative pressure state. However, since the suction holes 3 are connected to the negative pressure chamber 303, the negative pressure chamber 303 will leak through the suction holes 3, and the inside of the negative pressure chamber 303 cannot maintain a stable negative pressure state. The suction cup assembly can prevent this problem from occurring.

[0038] It is worth noting that the suction cup assembly has two working states:

[0039] When the suction hole 3 is covered with a workpiece, the negative pressure chamber 303 is connected to the corresponding suction hole 3. Since the suction hole 3 is covered with a workpiece, i.e., a guide ring, the workpiece can block the suction hole 3. At this time, the suction hole 3 will maintain the same vacuum state as the negative pressure chamber 303, and the suction hole 3 can adsorb and fix the workpiece without leakage.

[0040] When the suction hole 3 is not covered with a workpiece, the negative pressure chamber 303 and the corresponding suction hole 3 are blocked. Since the sizes of different workpieces are different, the areas covered by the workpieces are different, and the suction holes 3 in some areas will not be covered by the workpiece. At this time, it is necessary to block these suction holes 3 that are not covered by the workpiece, otherwise these air holes will leak air into the negative pressure chamber 303, causing the negative pressure chamber 303 to be unable to maintain the negative pressure state of the temperature, and thus it is difficult to ensure the stability of the workpiece fixation.

[0041] Furthermore, an air box 301 is fixedly installed in the fixed table, and a plurality of connecting holes 302 corresponding to the suction holes 3 are provided on the air box 301. The connecting holes 302 are connected with the suction holes 3 through the air pipes 323. The suction cup assembly is installed inside the air box 301 and is connected with the connecting holes 302. The negative pressure chamber 303 is inside the air box 301, and the negative pressure chamber 303 can be connected with the suction holes 3 through the air pipes 323.

[0042] The suction cup assembly includes a mounting block 304, a flow hole 305 arranged in sequence from top to bottom in the mounting block 304 and interconnected, a blocking hole 306 with an inner diameter smaller than the flow hole 305, and a connecting hole 307 connected to the negative pressure chamber 303. A first spring 308 is fixedly installed in the blocking hole 306, and a blocking block 309 is fixedly installed on the first spring 308. The blocking block 309 has a diameter larger than the aperture of the blocking hole 306 and smaller than the aperture of the flow hole 305 and is located inside the flow hole 305. The negative pressure chamber 303 is connected to the vacuum pump 311 through a pipe 310. Under the action of the first spring 308, the blocking block 309 is located above the blocking hole 306 when not affected by external force. At this time, the blocking block 309 will not block the blocking hole 306. At this time, the negative pressure chamber 303 is connected to the suction hole 3 through the connecting hole 307, the blocking hole 306, the flow hole 305 and the air pipe 323.

[0043] When the suction hole 3 is covered by the workpiece, the suction hole 3 is blocked. At this time, no air will enter the suction hole 3, and thus no air will be affected by the blocking block 309 below. The position of the blocking block 309 will not change, so that the suction hole 3 is always connected to the negative pressure chamber 303.

[0044] When the suction hole 3 is not covered by the workpiece, when the vacuum pump 311 evacuates the negative pressure chamber 303, the suction hole 3 will generate suction to the outside world. At this time, the external airflow will enter the circulation hole 305. Since the gas will generate downward pressure on the blocking block 309, it will drive the blocking block 309 to move downward, so that the blocking block 309 blocks the blocking hole 306. Under the influence of the low pressure state inside the negative pressure chamber 303, the blocking block 309 will generate suction, so that the blocking block 309 is fixed on the blocking hole 306, ensuring the stability of the blocking of the blocking hole 306, and then ensuring the airtight stability of the negative pressure chamber 303, ensuring that the suction hole 3 covered by the workpiece can stably adsorb and fix the workpiece.

[0045] In this embodiment, a dustproof sheet 312 is fixedly installed in the circulation hole 305, and the dustproof sheet 312 is located above the blocking block 309. Since metal dust is generated when the guide ring is cut, the metal dust may enter the vacuum channel, causing the channel to be blocked, reducing the adsorption force of the suction hole 3. In severe cases, the suction hole 3 may fail completely and the workpiece cannot be fixed. The worn sealing surface may cause vacuum leakage, further reducing the adsorption force. If metal dust enters the vacuum pump 311, it may damage the internal parts of the pump (such as blades, bearings, etc.), reducing the performance and life of the vacuum pump 311. The provision of the dustproof sheet 312 can effectively prevent this problem from occurring and prevent metal powder from entering the vacuum pump 311.

[0046] like Figures 6 to 8 As shown, this embodiment also includes a dustproof module, which is installed on the suction cup assembly. The dustproof module includes a fan assembly 320. The dustproof module connects the fan assembly 320 with the suction hole 3 when the suction hole 3 and the negative pressure chamber 303 are blocked, and blocks the space between the fan assembly 320 and the suction hole 3 when the suction hole 3 and the negative pressure chamber 303 are connected. Although the dustproof sheet 312 can prevent metal powder from entering the vacuum pump 311, it cannot prevent metal powder from entering the pipe above the dustproof sheet 312, and the accumulation of metal powder will gradually block the dustproof sheet 312, which will also reduce the adsorption force of the suction hole 3, and the metal dust will form a gap between the suction hole 3 and the workpiece, which may cause unstable adsorption and movement or vibration of the workpiece during processing.

[0047] Furthermore, the dustproof module includes an adsorption hole 313 provided in the flow hole 305, a valve body 314 is fixedly mounted on the adsorption hole 313, a valve core 315 is slidably mounted in the valve body 314, and the blocking state of the valve body 314 can be controlled by the valve core 315 entering or leaving the valve body 314;

[0048] It should be noted that the suction holes 3 covered by the workpiece will not be infiltrated by metal dust due to the obstruction of the workpiece, while the suction holes 3 not covered by the workpiece may be infiltrated by metal dust. At this time, air can be blown outwards through the adsorption holes 313, and the gas will be conducted to the suction holes 3 and ejected through the suction holes 3, thereby preventing metal dust from entering the suction holes 3. However, the gas ejected through the adsorption holes 313 will generate downward pressure on the blocking blocks 309, and the blocking blocks 309 corresponding to the suction holes 3 covered by the workpiece cannot be moved downward, otherwise the adsorption of the suction holes 3 will fail. The downward pressure generated on the blocking blocks 309 for the suction holes 3 not covered by the workpiece can improve the stability of the blocking blocks 309 in blocking the blocking holes 306.

[0049] It is worth noting that when the valve body 314 is not blocked by the valve core 315, even if the upper part of the suction hole 3 is covered by the workpiece, gas can enter through the adsorption hole 313, causing the blocking block 309 to block the blocking hole 306, making it impossible for the suction hole 3 to adsorb the workpiece. Therefore, it is necessary to control the blocking state of the adsorption hole 313 according to the position of the blocking block 309;

[0050] In this embodiment, a transmission mechanism is installed in the mounting block 304. The transmission mechanism controls the valve core 315 to enter or move away from the valve body 314 as the blocking block 309 rises and falls. Through the setting of the transmission mechanism, the above-mentioned problems can be prevented from occurring, and the influence of metal dust on the adsorption stability of the suction hole 3 can be avoided.

[0051] Furthermore, the transmission mechanism includes a mounting groove 321 provided in the mounting block 304, a pressure rod 316 is slidably installed in the mounting groove 321, the pressure rod 316 extends to the inside of the circulation hole 305, a second spring 317 is fixedly installed at the bottom of the pressure rod 316, the second spring 317 is fixedly connected to the mounting groove 321, a transmission rod 318 is fixedly installed on the pressure rod 316, and the transmission rod 318 is fixedly connected to the valve core 315. Under the action of the second spring 317, the pressure rod 316 will drive the valve core 315 to move to the inside of the valve body 314 when it is not affected by external force. At this time, the adsorption hole 313 will be blocked. At this time, when the workpiece is adsorbed and fixed, the positions of different blocking blocks 309 can be changed as the air pressure inside the negative pressure chamber 303 decreases. At this time, the moving blocking block 309 (corresponding to the unblocked adsorption hole 3) will drive the pressure rod 316 to move downward, thereby opening the adsorption hole 313, allowing the adsorption hole 313 to blow air to the outside, while the unmoved blocking block 309 (corresponding to the adsorption hole 3 covered by the workpiece) will block the adsorption hole 313. At this time, the airflow will not enter the flow hole 305, thereby ensuring the stability of the negative pressure inside the adsorption hole 3.

[0052] A circular tube 319 is fixedly mounted on the valve body 314 and is fixedly connected to a blower assembly 320. The blower assembly 320 blows air into the suction hole 3 to prevent metal dust from entering the suction hole 3. A telescopic plate 322 is fixedly mounted on the mounting groove 321. The transmission rod 318 passes through the telescopic plate 322 and is sealed. The telescopic plate 322 seals the mounting groove 321.

[0053] like Figure 3 As shown, in this embodiment, a plastic support rod 5 is fixedly installed on the connecting box 2, a guide cover 501 is fixedly installed on the support rod 5, a conveying pipe 503 is fixedly installed on the guide cover 501, and a fan 502 is fixedly installed on the other end of the conveying pipe 503. Since the suction hole 3 blows air outward, metal dust will fly, making the processing environment worse. At this time, the guide cover 501 can be moved, and the fan 502 can be started to exhaust the air in the guide cover 501, so that the metal dust can be absorbed by the guide cover 501 and discharged uniformly.

[0054] In this embodiment, the guide ring is placed inside the support plate 202, and the multiple connecting rods 403 are driven to rotate by rotating the driving disk 402, so that the connecting rod 403 can drive the positioning rod 401 to move along the guide groove 4, and then the multiple positioning rods 401 can be moved closer to or away from each other. When the multiple positioning rods 401 are in contact with the inner wall of the guide ring, the positioning of the guide ring is completed, and the accuracy of the positioning of the guide ring is ensured. The guide ring can then be fixed. After the guide ring is fixed, the lifting platform 407 can be driven downward by the push rod motor 408 to disengage the positioning rod 401 from the inner ring of the guide ring, so as to prevent the positioning rod 401 from interfering with the moving path of the tool when the tool processes the inner ring of the guide ring.

[0055] The vacuum pump 311 can be used to evacuate the inside of the negative pressure chamber 303, so that the inside of the negative pressure chamber 303 is in a negative pressure state. Since the suction hole 3 is connected to the negative pressure chamber 303, the suction hole 3 can adsorb and fix the workpiece. The fan assembly 320 can be used to blow air into the suction hole 3 to prevent metal dust from entering the suction hole 3. The fan 502 is started to evacuate the inside of the air guide cover 501, so that the metal dust can be absorbed and discharged uniformly through the air guide cover 501.

[0056] The above specific embodiments are merely preferred embodiments of the present application. Based on the technical solutions of the present application and the relevant inspirations of the above embodiments, those skilled in the art may make various alternative improvements and combinations of the above specific embodiments. The above specific embodiments are merely explanations of the present application and are not limitations of the present application.

Claims

1. An automatic cutting milling machine for guide ring production, comprising a machine tool and a workbench mounted on the machine tool, characterized in that: The fixed table is detachably connected to the workbench. The workbench is equipped with multiple suction holes, which are connected to suction cup assemblies via air pipes. The multiple suction cup assemblies are connected to a negative pressure chamber, which is connected to a vacuum pump. The suction cup assembly protects the airtightness of the negative pressure chamber. The suction cup assembly has two working states: When the suction hole is covered with a workpiece, the negative pressure chamber is connected to the corresponding suction hole; when the suction hole is not covered with a workpiece, the negative pressure chamber and the corresponding suction hole are blocked. The dustproof module is installed on the suction cup assembly. The dustproof module includes a fan assembly. When the suction hole and the negative pressure chamber are blocked, the dustproof module connects the fan assembly with the suction hole. When the suction hole and the negative pressure chamber are connected, the dustproof module blocks the space between the fan assembly and the suction hole. The suction cup assembly includes a mounting block, flow holes sequentially arranged in the mounting block from top to bottom and connected to each other, a blocking hole with an inner diameter smaller than the flow hole, and a connecting hole connected to the negative pressure chamber. A first spring is fixedly installed in the blocking hole, and a blocking block is fixedly installed on the first spring. The blocking block has a diameter larger than the aperture of the blocking hole and smaller than the aperture of the flow hole and is located inside the flow hole. The negative pressure chamber is connected to the vacuum pump through a pipeline. The dustproof module includes an adsorption hole provided in the circulation hole, a valve body is fixedly mounted on the adsorption hole, a valve core is slidably mounted in the valve body, a transmission mechanism is installed in the mounting block, and the transmission mechanism controls the valve core to enter or move away from the valve body as the blocking block is raised and lowered; the transmission mechanism includes a mounting groove provided in the mounting block, a pressure rod is slidably mounted in the mounting groove, the pressure rod extends to the inside of the circulation hole, a second spring is fixedly mounted on the bottom of the pressure rod, the second spring is fixedly connected to the mounting groove, a transmission rod is fixedly mounted on the pressure rod, and the transmission rod is fixedly connected to the valve core; a round tube is fixedly mounted on the valve body, and the round tube is fixedly connected to the fan assembly; When blowing air outward through the adsorption hole, the gas will be conducted to the adsorption hole and ejected through the adsorption hole, preventing metal dust from entering the adsorption hole; the blocking block in the adsorption hole not covered by the workpiece moves downward under the action of air pressure, which will drive the pressure rod to move downward, open the adsorption hole, and allow the adsorption hole to blow air outward; the blocking block in the adsorption hole covered by the workpiece does not move downward, the adsorption hole is blocked, and the air flow will not enter the flow hole, which can ensure the stability of the negative pressure inside the adsorption hole; The workbench includes a connecting box that can be detachably mounted on the workbench, a groove is provided in the connecting box, a supporting plate is fixedly mounted in the groove, and a positioning assembly for positioning the guide ring is installed in the supporting plate and the connecting box; the positioning assembly includes a plurality of guide grooves provided on the supporting plate, a positioning rod is slidably mounted in the guide groove, a driving disk is rotatably mounted in the connecting box, a connecting rod is rotatably mounted on the positioning rod, the other end of the connecting rod is rotatably connected to the driving disk, a lifting platform is slidably mounted in the connecting box, a worm gear and a worm that mesh with each other are rotatably mounted on the lifting platform, the driving disk and the worm gear are coaxially fixedly connected, a motor is fixedly mounted on the lifting platform, the output shaft of the motor is coaxially fixedly connected to the worm, a push rod motor is fixedly mounted in the connecting box, and the output shaft of the push rod motor is fixedly connected to the lifting platform.

2. The automatic cutting milling machine for guide ring production according to claim 1, characterized in that: An air box is fixedly installed in the fixed platform. The air box is provided with a plurality of connecting holes corresponding to the suction holes. The connecting holes are connected with the suction holes through air pipes. The suction cup assembly is installed inside the air box and connected with the connecting holes.

3. The automatic cutting milling machine for guide ring production according to claim 1, characterized in that: A dustproof sheet is fixedly installed in the flow hole and is located above the blocking block.

4. The automatic cutting milling machine for guide ring production according to claim 1, characterized in that: A telescopic plate is fixedly mounted on the mounting groove, a transmission rod passes through the telescopic plate and is sealed, and the telescopic plate seals the mounting groove.

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