Numerical control chamfering device for metal parts

Abstract

The application discloses a metal piece numerical control chamfering device and relates to the field of aluminum pipe piece chamfering processing. The device comprises a workbench, two groups of chamfering mechanisms symmetrically arranged on the top of the workbench, two groups of mounting racks symmetrically arranged on the top of the workbench, mounting plates mounted on the top of the two groups of mounting racks, movable positioning plates and clamps arranged on the inner sides of the two groups of mounting plates, and a transmission mechanism for driving the positioning plates and the clamps to move. The positioning plates and the clamps can be opened and closed. The two groups of positioning plates, the two groups of clamps, the transmission mechanism, a feeding conveyor belt and the chamfering mechanisms are arranged, so that the automatic feeding and discharging of the aluminum pipe pieces and the operation of the chamfering mechanisms are synchronized. The chamfering mechanisms are driven to move towards each other to drive the transmission mechanism, so that the two groups of clamps and the two groups of positioning plates are automatically closed to clamp the aluminum pipe pieces. The automatic feeding and discharging and the chamfering of the aluminum pipe pieces are synchronized, so that the working efficiency of the chamfering is improved.

Description

Technical Field

[0001] This invention relates to the field of aluminum tube chamfering, specifically to a CNC chamfering device for metal parts. Background Technology

[0002] A CNC chamfering machine is a professional pipe chamfering device. It is a high-precision chamfering machine that can operate automatically. The CNC chamfering machine is one type of chamfering machine. It uses linear guides, ball screws and servo motors and is controlled by a PLC. Automatic feeding and discharging operations can be achieved by inputting numbers on the display screen.

[0003] A CNC chamfering machine typically consists of a three-axis linkage mechanism, pipe clamps, a conveyor belt, a positioning table, and chamfering equipment. The metal pipes are transported via the conveyor belt, and the three-axis linkage mechanism drives the pipe clamps. Two sets of pipe clamps are installed simultaneously. Under the control of a PLC, one set of clamps clamps the metal parts on the conveyor belt and transfers them to the pipe positioning table. Then, the two sets of chamfering equipment start and move closer to each other to chamfer and grind the inner diameter of the pipes. The other set of clamps is responsible for clamping and unloading the pre-processed pipes from the positioning table. The two sets of pipe clamps are controlled by the three-axis linkage mechanism to operate synchronously, thereby realizing simultaneous loading and unloading of metal pipes during the chamfering process and improving work efficiency.

[0004] CNC chamfering machines for metal pipe fittings typically use a linkage mechanism to drive two sets of clamps for automatic loading and unloading of the pipe fittings. This simultaneous automatic loading and unloading improves work efficiency. However, after one set of pipe fittings is chamfered, the positioning table holding the fittings needs to open first, and the two sets of chamfering devices need to move away from each other before the linkage mechanism can drive the fitting clamps for loading and unloading. Therefore, from the start to the end of the loading and unloading process, the chamfering equipment is in a waiting state. This wastes time in the process of chamfering large batches of pipe fittings, hindering overall work efficiency. Summary of the Invention

[0005] Therefore, the purpose of this invention is to provide a CNC chamfering device for metal parts to solve the technical problems mentioned in the background.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a CNC chamfering device for metal parts, comprising a worktable, two sets of chamfering mechanisms symmetrically arranged on the top of the worktable, and two sets of mounting brackets symmetrically arranged on the top of the worktable, with mounting plates mounted on the top of each of the two sets of mounting brackets, a first guide rod movably penetrating the inner side of each of the two sets of mounting plates, a positioning plate mounted on one end of the first guide rod, and a first threaded sleeve rotatably connected to the side of the mounting plate, a first threaded rod being threadedly connected to the inside of the first threaded sleeve, and one end of the first threaded rod being connected to the positioning plate, a slide rail mounted on the top of the mounting plate, a clamp movably connected to the top of the slide rail, and a second threaded rod mounted on one side of the clamp, a second threaded sleeve rotatably connected to the side of the mounting plate, and the second threaded sleeve and the second threaded rod being threadedly connected. It also includes a transmission mechanism for the chamfering mechanism to drive the first threaded sleeve and the second threaded sleeve, and the rotation of the first threaded sleeve and the second threaded sleeve causes the two sets of positioning plates and clamps to move, thereby realizing the opening and closing of the positioning plates and clamps.

[0007] By adopting the above technical solution, and by setting up two sets of positioning plates, two sets of clamps, a transmission mechanism, a feeding conveyor belt, and a chamfering mechanism, the automatic loading and unloading of aluminum tubes and the operation of the chamfering mechanism can be synchronized. When the two sets of chamfering mechanisms approach each other to perform chamfering work, they drive the transmission mechanism to close the two sets of positioning plates. Then, the aluminum tubes conveyed by the feeding conveyor belt will automatically fall onto the positioning plates. As the two sets of chamfering mechanisms continue to approach each other, they drive the transmission mechanism to close the two sets of clamps to clamp the aluminum tubes. Then, the chamfering mechanism will chamfer the aluminum tubes. Conversely, when the two sets of chamfering mechanisms move away from each other, the two sets of clamps and the two sets of positioning plates will automatically open to unload the aluminum tubes. The automatic loading and unloading of aluminum tubes and the synchronous operation of the chamfering mechanism can improve the efficiency of chamfering.

[0008] The present invention is further configured such that a protective cover is installed on the top of the workbench, a feeding mechanism is installed on the top of the protective cover, and a feeding conveyor belt is installed on the side of the protective cover.

[0009] By adopting the above technical solutions, the internal equipment can be protected by setting up a protective cover, reducing the flying of debris during chamfering and grinding, and the aluminum pipes can be transported to the positioning plate by setting up a feeding mechanism and feeding conveyor belt.

[0010] The invention is further configured such that a material outlet is provided at the top of the workbench, and a material frame is movably installed at the bottom of the workbench. Two sets of chamfering mechanisms are symmetrically arranged about the material outlet, and a transmission mechanism is installed on the side of each set of chamfering mechanisms. The two sets of transmission mechanisms are centrally symmetrical about the material outlet. The chamfering mechanism includes a slide cylinder installed at the top of the workbench, and a chamfering grinder is provided above the slide cylinder.

[0011] By adopting the above technical solution, by setting a feeding port between the two sets of chamfering mechanisms, the aluminum tubes that have undergone chamfering can enter the material frame through the feeding port after processing.

[0012] The invention is further configured such that the tops of the two sets of positioning plates are symmetrically provided with arc-shaped grooves, the tops of the two sets of clamps are provided with slide grooves that match the slide rails, and the sides of the clamps are movably mounted with multiple sets of compression rods by means of springs.

[0013] By adopting the above technical solution, an arc-shaped groove is opened on the top of the positioning plate, so that the aluminum tube can be clamped between the two sets of positioning plates. The clamp is equipped with a spring to move the extrusion rod inside. Therefore, when the two sets of clamps clamp the aluminum tube, the degree of contraction of the extrusion rod inside is different depending on the distance the clamp moves.

[0014] The present invention is further configured such that the transmission mechanism includes a first transmission shaft and a second transmission shaft rotatably connected to the side of the mounting bracket, and the first transmission shaft and the first threaded sleeve are connected by a first bevel gear set, and the second transmission shaft and the second threaded sleeve are connected by a second bevel gear set.

[0015] By adopting the above technical solution, a first transmission shaft drives a first bevel gear set to rotate a first threaded sleeve, and a second transmission shaft drives a second bevel gear set to rotate a second threaded sleeve.

[0016] The present invention is further configured such that the transmission mechanism includes a first fixed rod and a second fixed rod rotatably connected to the inner side of the protective cover, and a first spur gear is installed on the top of the first fixed rod, and the first fixed rod and the first transmission shaft are connected by a first transmission belt assembly; a second spur gear is installed on the top of the second fixed rod, and the second fixed rod and the second transmission shaft are connected by a second transmission belt assembly; the transmission mechanism includes two sets of racks installed on the side of the slide cylinder, and the two sets of racks are centrally symmetrical about the discharge port.

[0017] By adopting the above technical solution, and by setting a first spur gear, a second spur gear, a first transmission belt assembly, and a second transmission belt assembly, when the slide cylinder drives the rack to move, it can drive the first spur gear and the second spur gear to rotate, thereby driving the first transmission shaft and the second transmission shaft to rotate respectively.

[0018] The present invention is further configured such that a feeding conveyor belt is installed on the side of a set of the mounting frames, and multiple sets of feeding boxes are provided on the outside of the feeding conveyor belt side.

[0019] By adopting the above technical solution, and by setting up a feeding conveyor belt, the transmission belt of the feeding conveyor belt is equipped with multiple sets of dropping boxes. After the aluminum tube is chamfered, it falls into the dropping box. The weight of the aluminum tube drives the feeding conveyor belt to run. When the dropping box rotates to the bottom, the aluminum tube automatically rolls into the material frame, which can avoid the aluminum tube falling directly into the material frame and reduce the impact damage to the aluminum tube.

[0020] The present invention is further configured such that the feeding mechanism includes a feeding channel installed on the top of the protective cover, and the feeding channel has a feeding port inside. Two sets of third guide rods are movably installed inside the feeding channel. Each end of the two sets of third guide rods is equipped with a baffle plate, and a fourth threaded rod is rotatably connected to one side of the baffle plate. The fourth threaded rod is threadedly connected to the feeding channel.

[0021] By adopting the above technical solution, the feeding mechanism can help aluminum tubes roll better into the arc groove of the positioning plate, and the width of the feeding port in the feeding mechanism can be adjusted so that the feeding mechanism can feed aluminum tubes of different lengths.

[0022] The present invention is further configured such that two sets of second guide rods are installed on the top of the slide cylinder, and a movable seat is movably installed on the outside of the second guide rods. A third threaded rod is rotatably connected to the top of the slide cylinder, the third threaded rod is threadedly connected to the movable seat, and a chamfering grinder is installed on the top of the movable seat.

[0023] By adopting the above technical solution, and by setting a second guide rod and a third threaded rod, the position of the chamfering grinder can be adjusted, so that the chamfering mechanism can process aluminum tubes of different lengths while engaging with the transmission mechanism.

[0024] The present invention is further configured such that the sides of the feeding channel and the slide cylinder are provided with scales for aligning the baffle and the moving seat.

[0025] By adopting the above technical solution, and by setting scales on the sides of the feeding channel and the slide cylinder, the operator can more accurately adjust the position of the chamfering grinder and the width of the feeding port.

[0026] In summary, the present invention has the following main beneficial effects: This invention, by setting up two sets of positioning plates, two sets of clamps, a transmission mechanism, a feeding conveyor belt, and a chamfering mechanism, allows for the automatic loading and unloading of aluminum tubes and the synchronized operation of the chamfering mechanism. When the two sets of chamfering mechanisms approach each other to perform chamfering work, they drive the transmission mechanism to close the two sets of positioning plates, and then the aluminum tubes conveyed by the feeding conveyor belt automatically fall onto the positioning plates. As the two sets of chamfering mechanisms continue to approach each other, they drive the transmission mechanism to close the two sets of clamps to hold the aluminum tubes, and then the chamfering mechanism adheres to the aluminum tubes to perform chamfering work. Conversely, when the two sets of chamfering mechanisms move away from each other, the two sets of clamps and the two sets of positioning plates automatically open to unload the aluminum tubes. The automatic loading and unloading of aluminum tubes and the synchronized operation of the chamfering mechanism can improve the efficiency of chamfering work.

[0027] This invention allows aluminum tubes to descend slowly during unloading by setting up two sets of unloading conveyor belts. Multiple sets of drop boxes are set on the outside of the unloading conveyor belts. When the aluminum tubes are finished chamfering and unloading, they will first fall on the drop boxes. Then, the weight of the aluminum tubes will drive the unloading conveyor belts to run slowly, allowing the aluminum tubes to enter the material frame smoothly, which can reduce the impact damage to the aluminum tubes during the falling process. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the protective cover of the present invention; Figure 3 This is a schematic diagram of the chamfering mechanism of the present invention; Figure 4 This is a schematic diagram showing the connection between the feeding port, the chamfering mechanism, and the worktable of the present invention; Figure 5 This is a schematic diagram showing the connection between the workbench and the mounting bracket of the present invention; Figure 6 This is a schematic diagram showing the connection between the workbench and the material box of the present invention; Figure 7 This is a schematic diagram showing the connection between the mounting frame and the unloading conveyor belt of the present invention; Figure 8 This is a schematic diagram showing the connection between the feeding conveyor belt and the discharge box of the present invention; Figure 9 This is a schematic diagram of the transmission mechanism structure of the present invention; Figure 10 This is a schematic diagram showing the connection between the mounting plate, positioning plate, and clamp of the present invention; Figure 11 This is a schematic diagram of the feeding mechanism of the present invention; Figure 12 This is a schematic diagram of the fixture structure of the present invention.

[0029] In the diagram: 1. Workbench; 2. Feed inlet; 3. Chamfering mechanism; 4. Material frame; 5. Mounting bracket; 6. Mounting plate; 7. First guide rod; 8. Positioning plate; 9. Arc groove; 10. First threaded rod; 11. First threaded sleeve; 12. Slide rail; 13. Fixture; 14. Extrusion rod; 15. Slide groove; 16. Second threaded rod; 17. Second threaded sleeve; 18. First drive shaft; 19. Second drive shaft; 20. First bevel gear set; 21. Second bevel gear set; 22. First fixed rod; 23. First spur gear; 24. First drive belt set Components; 25. Second fixed rod; 26. Second spur gear; 27. Second transmission belt assembly; 28. Unloading conveyor belt; 29. ​​Unloading box; 30. Aluminum tube; 31. Rack; 32. Protective cover; 33. Feeding mechanism; 34. Feeding conveyor belt; 35. Transmission mechanism; 301. Slide cylinder; 302. Second guide rod; 303. Moving seat; 304. Third threaded rod; 305. Chamfering grinder; 3301. Feeding channel; 3302. Feeding port; 3303. Third guide rod; 3304. Baffle; 3305. Fourth threaded rod. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0031] The embodiments of the present invention will now be described. Example 1

[0032] A CNC chamfering device for metal parts, such as Figures 1-12 As shown, the device includes a workbench 1. Two sets of chamfering mechanisms 3 are symmetrically arranged on the top of the workbench 1. These two sets of chamfering mechanisms 3 are close to each other and can chamfer and grind the aluminum tube 30. Two sets of mounting brackets 5 are also symmetrically arranged on the top of the workbench 1, and mounting plates 6 are mounted on the top of each set of mounting brackets 5. A first guide rod 7 is movably inserted through the inner side of each mounting plate 6. The first guide rod 7 can limit the movement of the positioning plate 8. A positioning plate 8 is mounted on one end of the first guide rod 7, and a first threaded sleeve 11 is rotatably connected to the side of the mounting plate 6. The internal thread of 11 is connected to a first threaded rod 10, and one end of the first threaded rod 10 is connected to the positioning plate 8. The top of the mounting plate 6 is equipped with a slide rail 12, which limits the movement of the clamp 13. The top of the slide rail 12 is movably connected to the clamp 13, and a second threaded rod 16 is installed on one side of the clamp 13. The side of the mounting plate 6 is rotatably connected to a second threaded sleeve 17, and the second threaded sleeve 17 is threadedly connected to the second threaded rod 16. Rotating the first threaded sleeve 11 and the second threaded sleeve 17 can drive the positioning plate 8 and the clamp 13 to move. It also includes a transmission mechanism 35 for the chamfering mechanism 3 to drive the first threaded sleeve 11 and the second threaded sleeve 17. The rotation of the first threaded sleeve 11 and the second threaded sleeve 17 causes the two sets of positioning plates 8 and clamps 13 to move, thereby opening and closing the positioning plates 8 and clamps 13. The positioning plates 8 are closed to place the aluminum tube 30, and the clamps 13 are closed to clamp the aluminum tube 30.

[0033] Please see Figure 1 The top of the workbench 1 is equipped with a protective cover 32, and the top of the protective cover 32 is equipped with a feeding mechanism 33. The side of the protective cover 32 is equipped with a feeding conveyor belt 34. By setting the protective cover 32, the internal equipment can be protected and the flying of debris during chamfering and grinding can be reduced. The feeding mechanism 33 and the feeding conveyor belt 34 can transport the aluminum tube 30 to the positioning plate 8.

[0034] Please see Figure 4 and Figure 5 The top of the workbench 1 is provided with a feeding port 2, and the bottom of the workbench 1 is movably installed with a material frame 4. Two sets of chamfering mechanisms 3 are symmetrically arranged about the feeding port 2, and transmission mechanisms 35 are installed on the sides of both sets of chamfering mechanisms 3. The two sets of transmission mechanisms 35 are centrally symmetrical about the feeding port 2. The chamfering mechanism 3 includes a slide cylinder 301 installed on the top of the workbench 1, and a chamfering grinder 305 is provided above the slide cylinder 301. By setting the feeding port 2 between the two sets of chamfering mechanisms 3, the aluminum tube 30 that has been chamfered can enter the material frame 4 through the feeding port 2 after processing.

[0035] Please see Figure 9 and Figure 12 The tops of the two sets of positioning plates 8 are symmetrically provided with arc-shaped grooves 9, and the tops of the two sets of clamps 13 are provided with sliding grooves 15 that match the slide rails 12. The sides of the clamps 13 are provided with springs to movably install multiple sets of extrusion rods 14. By providing arc-shaped grooves 9 on the tops of the positioning plates 8, the aluminum tube 30 can be clamped between the two sets of positioning plates 8. The extrusion rods 14 are movably installed inside the clamps 13 by providing springs. Thus, when the two sets of clamps 13 clamp the aluminum tube 30, the degree of contraction of the internal extrusion rods 14 varies depending on the distance the clamps 13 move.

[0036] Please see Figure 9 and Figure 10The transmission mechanism 35 includes a first transmission shaft 18 and a second transmission shaft 19 rotatably connected to the side of the mounting bracket 5. The first transmission shaft 18 and the first threaded sleeve 11 are connected by a first bevel gear set 20, and the second transmission shaft 19 and the second threaded sleeve 17 are connected by a second bevel gear set 21. The first transmission shaft 18 drives the first bevel gear set 20 to rotate the first threaded sleeve 11, and the second transmission shaft 19 drives the second bevel gear set 21 to rotate the second threaded sleeve 17.

[0037] Please see Figure 9 and Figure 10 The transmission mechanism 35 includes a first fixed rod 22 and a second fixed rod 25 rotatably connected to the inner side of the protective cover 32. A first spur gear 23 is mounted on the top of the first fixed rod 22, and the first fixed rod 22 and the first transmission shaft 18 are connected by a first transmission belt assembly 24. A second spur gear 26 is mounted on the top of the second fixed rod 25, and the second fixed rod 25 and the second transmission shaft 19 are connected by a second transmission belt assembly 27. The transmission mechanism 35 includes two sets of racks 31 mounted on the side of the slide cylinder 301. The two sets of racks 31 are centrally symmetrical about the discharge port 2. By setting the first spur gear 23, the second spur gear 26, the first transmission belt assembly 24, and the second transmission belt assembly 27, when the slide cylinder 301 drives the racks 31 to move, it can drive the first spur gear 23 and the second spur gear 26 to rotate, which in turn drives the first transmission shaft 18 and the second transmission shaft 19 to rotate.

[0038] Please see Figure 8 A set of mounting brackets 5 is equipped with a feeding conveyor belt 28 on its side, and multiple sets of dropping boxes 29 are set on the outside of the feeding conveyor belt 28. By setting up the feeding conveyor belt 28, multiple sets of dropping boxes 29 are installed on the transmission belt part of the feeding conveyor belt 28. After the aluminum tube 30 is chamfered, it falls into the dropping box 29. The weight of the aluminum tube 30 drives the feeding conveyor belt 28 to run. When the dropping box 29 rotates to the bottom, the aluminum tube 30 automatically rolls into the material frame 4, which can prevent the aluminum tube 30 from falling directly into the material frame 4 and reduce the impact damage to the aluminum tube 30. Example 2

[0039] A CNC chamfering device for metal parts, such as Figure 1 and Figure 11As shown, the feeding mechanism 33 includes a feeding channel 3301 installed on the top of the protective cover 32, and a feeding port 3302 is provided inside the feeding channel 3301. Two sets of third guide rods 3303 are movably installed inside the feeding channel 3301. Each end of the two sets of third guide rods 3303 is equipped with a baffle 3304. A fourth threaded rod 3305 is rotatably connected to one side of the baffle 3304. The fourth threaded rod 3305 is threadedly connected to the feeding channel 3301. By setting the feeding mechanism 33, the aluminum tube 30 can be better rolled into the arc groove 9 of the positioning plate 8. The width of the feeding port 3302 inside the feeding mechanism 33 can be adjusted, so that the feeding mechanism 33 can feed aluminum tubes 30 of different lengths.

[0040] Please see Figure 3 Two sets of second guide rods 302 are installed on the top of the slide cylinder 301, and a movable seat 303 is movably installed on the outside of the second guide rods 302. A third threaded rod 304 is rotatably connected to the top of the slide cylinder 301. The third threaded rod 304 and the movable seat 303 are threadedly connected. A chamfering grinder 305 is installed on the top of the movable seat 303. By setting the second guide rods 302 and the third threaded rods 304, the position of the chamfering grinder 305 can be adjusted, so that the chamfering mechanism 3 can process aluminum tubes 30 of different lengths while engaging with the transmission mechanism 35.

[0041] Please see Figure 3 and Figure 11 The sides of the feeding channel 3301 and the slide cylinder 301 are equipped with scales for aligning the baffle 3304 and the moving seat 303. By setting scales on the sides of the feeding channel 3301 and the slide cylinder 301, the operator can more accurately adjust the position of the chamfering grinder 305 and the width of the feeding port 3302.

[0042] The working principle of this invention is as follows: When it is necessary to chamfer the aluminum tube 30, the worker adds the aluminum tube 30 to the feeding conveyor belt 34 in sequence and starts the feeding conveyor belt 34. The feeding conveyor belt 34 is equipped with multiple sets of protruding deceleration bars. The aluminum tube 30 can be engaged between two sets of deceleration bars. The feeding conveyor belt 34 runs intermittently and slowly, driving the aluminum tube 30 into the feeding mechanism 33 in sequence.

[0043] At the same time, the two sets of sliding cylinders 301 are activated to drive the two sets of chamfering grinders 305 to move closer to each other. Then, the rack 31 and the first spur gear 23 mesh, and the first spur gear 23 drives the first fixed rod 22 to rotate. The first fixed rod 22 drives the first transmission shaft 18 to rotate through the first transmission belt assembly 24. The first transmission shaft 18 drives the first threaded sleeve 11 to rotate through the first bevel gear set 20. Using the screw principle, the first threaded rod 10 is displaced inside the first threaded sleeve 11 and pushes the positioning plate 8 to move. The first guide rod 7 will limit the movement of the positioning plate 8. Then, the two sets of positioning plates 8 move closer to each other and fit together. At this time, the aluminum tube 30 falls from the feeding port 3302 of the feeding mechanism 33 into the arc groove 9 between the two sets of positioning plates 8.

[0044] Then, the two sets of chamfering grinders 305 continue to approach each other, causing the rack 31 and the second spur gear 26 to mesh. The second spur gear 26 drives the second fixed rod 25 to rotate. The second fixed rod 25 drives the second transmission shaft 19 to rotate through the second transmission belt assembly 27. The second transmission shaft 19 drives the second threaded sleeve 17 to rotate through the second bevel gear set 21. Using the screw principle, the second threaded rod 16 is displaced inside the second threaded sleeve 17 and pushes the clamp 13 to move. The slide rail 12 will limit the movement of the clamp 13. Then, the two sets of clamps 13 approach each other and clamp and fix the aluminum tube 30. As the two sets of clamps 13 continue to approach each other, the pressing rod 14 on the side of the clamp 13 retracts into the clamp 13 under the action of the spring. Then, the two sets of clamps 13 can better clamp the aluminum tube 30.

[0045] Next, two sets of chamfering grinders 305 are attached to both ends of the aluminum tube 30. The drill bits of the chamfering grinders 305 rotate to chamfer both ends of the aluminum tube 30. After grinding, the two sets of chamfering grinders 305 are driven away from each other by the slide cylinder 301. According to the above, the two sets of clamps 13 first move away from each other to release the clamps on the aluminum tube 30. Then the two sets of positioning plates 8 move away from each other, so that the aluminum tube 30 falls onto the drop box 29 of a set of feeding conveyor belts 28. The weight of the aluminum tube 30 drives the feeding conveyor belt 28 to rotate slowly. Finally, the processed aluminum tube 30 falls into the interior of the material frame 4. The metal shavings generated during the chamfering process also fall into the material frame 4. As the material frame 4 gradually fills with aluminum tube 30, the staff pulls out the material frame 4 and shakes it slightly. The metal shavings are filtered out by the holes in the material frame 4. Finally, the aluminum tube 30 is collected and managed in a unified manner.

[0046] When the equipment needs to process aluminum tubes 30 with a longer diameter, the operator manually rotates the fourth threaded rod 3305 to make the two sets of baffles 3304 move away from each other to a suitable distance. The feeding channel 3301 is equipped with scale markings for alignment. The third guide rod 3303 restricts the movement of the baffles 3304. At the same time, the operator rotates the third threaded rod 304. The slide cylinder 301 is also equipped with scale markings for alignment. Using the screw principle, the moving seat 303 slides outside the second guide rod 302 to adjust the distance between the two sets of chamfering grinders 305 to a suitable distance, and then the chamfering work can be performed.

[0047] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A CNC chamfering device for metal parts, comprising a worktable (1), characterized in that: Two sets of chamfering mechanisms (3) are symmetrically arranged on the top of the workbench (1). The chamfering mechanism (3) includes a slide cylinder (301) installed on the top of the workbench (1), and a chamfering grinder (305) is arranged above the slide cylinder (301). Two sets of mounting brackets (5) are symmetrically arranged on the top of the workbench (1), and mounting plates (6) are installed on the top of both sets of mounting brackets (5). A first guide rod (7) is movably passed through the inner side of both sets of mounting plates (6), and a positioning plate (8) is installed at one end of the first guide rod (7). A first threaded sleeve (11) is rotatably connected to the side. A first threaded rod (10) is threadedly connected to the inside of the first threaded sleeve (11). One end of the first threaded rod (10) is connected to the positioning plate (8). A slide rail (12) is installed on the top of the mounting plate (6). A clamp (13) is movably connected to the top of the slide rail (12). A second threaded rod (16) is installed on one side of the clamp (13). A second threaded sleeve (17) is rotatably connected to the side of the mounting plate (6). The second threaded sleeve (17) and the second threaded rod (16) are threadedly connected. It also includes a transmission mechanism (35) for the chamfering mechanism (3) to drive the first threaded sleeve (11) and the second threaded sleeve (17) to move, and the rotation of the first threaded sleeve (11) and the second threaded sleeve (17) causes the two sets of positioning plates (8) and clamps (13) to move, thereby opening and closing the positioning plates (8) and clamps (13). The top of the workbench (1) is provided with a discharge port (2), and the bottom of the workbench (1) is movably installed with a material frame (4). The two sets of chamfering mechanisms (3) are symmetrically arranged about the discharge port (2), and the sides of the two sets of chamfering mechanisms (3) are each equipped with a transmission mechanism (35), and the two sets of transmission mechanisms (35) are centrally symmetrical about the discharge port (2). The transmission mechanism (35) includes a first transmission shaft (18) and a second transmission shaft (19) rotatably connected to the side of the mounting frame (5), and the first transmission shaft (18) and the first threaded sleeve (11) are connected by a first bevel gear set (20). The transmission mechanism (35) includes a first fixed rod (22) and a second fixed rod (25) rotatably connected to the inner side of the protective cover (32), and a first spur gear (23) is installed on the top of the first fixed rod (22). The first fixed rod (22) and the first transmission shaft (18) are connected by a first transmission belt assembly (24). The second fixed rod (25) is installed on the top of the second fixed rod (25). The second fixed rod (25) and the second transmission shaft (19) are connected by a second transmission belt assembly (27). The transmission mechanism (35) includes two sets of racks (31) installed on the side of the slide cylinder (301). The two sets of racks (31) are centrally symmetrical about the discharge port (2).

2. The CNC chamfering device for metal parts according to claim 1, characterized in that: The top of the protective cover (32) is equipped with a feeding mechanism (33), and the side of the protective cover (32) is equipped with a feeding conveyor belt (34).

3. The CNC chamfering device for metal parts according to claim 1, characterized in that: The tops of the two sets of positioning plates (8) are symmetrically provided with arc-shaped grooves (9), and the tops of the two sets of clamps (13) are provided with sliding grooves (15) that match the slide rails (12). The sides of the clamps (13) are provided with multiple sets of extrusion rods (14) by means of springs.

4. The CNC chamfering device for metal parts according to claim 1, characterized in that: A set of mounting brackets (5) is equipped with a feeding conveyor belt (28) on its side, and multiple sets of feeding boxes (29) are provided on the outside of the feeding conveyor belt (28).

5. A CNC chamfering device for metal parts according to claim 2, characterized in that: The feeding mechanism (33) includes a feeding channel (3301) installed on the top of the protective cover (32), and a feeding port (3302) is opened inside the feeding channel (3301). Two sets of third guide rods (3303) are movably installed inside the feeding channel (3301). A baffle (3304) is installed at the end of each of the two sets of third guide rods (3303). A fourth threaded rod (3305) is rotatably connected to one side of the baffle (3304), and the fourth threaded rod (3305) is threadedly connected to the feeding channel (3301).

6. A CNC chamfering device for metal parts according to claim 1, characterized in that: The top of the slide cylinder (301) is equipped with two sets of second guide rods (302), and a movable seat (303) is movably installed on the outside of the second guide rods (302). The top of the slide cylinder (301) is rotatably connected with a third threaded rod (304). The third threaded rod (304) and the movable seat (303) are threadedly connected, and a chamfering grinder (305) is installed on the top of the movable seat (303).

7. A CNC chamfering device for metal parts according to claim 5, characterized in that: The sides of the feeding channel (3301) and the slide cylinder (301) are provided with scales for aligning the baffle (3304) and the moving seat (303).

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