Numerical control visual recognition cutting machine

Abstract

The utility model relates to a numerical control visual identification cutting machine, including frame and install its mobile assembly, vision assembly and tool holder assembly, tool holder assembly includes mounting seat, cutting assembly, lifting assembly and punch assembly, punch assembly includes the punch cutter bar of chip removal channel and punch cylinder, vision assembly is located at the top of frame, contains linear type camera support and equidistance installation's several camera components, the chip collection component includes the chip collection box, vacuum generator and pipeline system. Vacuum generator has upper interface, negative pressure interface and lower interface, the upper interface is connected external gas source through gas pipeline, the negative pressure interface is connected the chip removal channel of punch cutter bar through negative pressure pipeline, the lower interface is connected the chip collection box through the chip removal pipeline. The utility model optimizes vision assembly, and visual coverage system is more comprehensive, optimizes the chip collection component, reduces the noise produced when collecting.

Description

Technical Field

[0001] This utility model relates to the field of leather processing technology, and in particular to a CNC vision recognition cutting machine. Background Technology

[0002] Patent CN202110404287.4 discloses a machining method for a CNC multi-functional integrated tool holder. The method includes a lifting assembly, a mounting base, a steering shaft assembly, a pneumatic tool holder, a confluence assembly, a leveling assembly, a punching assembly, and a chip collection assembly. The lower end of the lifting assembly is connected to the mounting base. The steering shaft assembly, confluence assembly, leveling assembly, and punching assembly are all mounted on the mounting base. The pneumatic tool holder is sleeved on the steering shaft assembly. The chip collection assembly is connected to the punching assembly via an air pipe. This invention can perform cutting, marking, and punching operations. The chip collection channel and chip collection assembly collect and clean the waste material from the punching process, preventing waste from scattering into the working area.

[0003] Traditional leather cutting equipment faces two major technical bottlenecks in its processing: First, the traditional single-camera system has incomplete vision coverage, forcing manual intervention for positioning or the addition of mechanical scanning mechanisms; second, the chip removal noise is high, as the conventional short-path design of the vacuum generator directly connecting to the chip collection box results in significant industrial noise generated by the high-pressure airflow directly impacting the box. Based on these issues, the structure of the CNC recognition cutting machine needs to be optimized. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and to provide a CNC vision recognition cutting machine.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a CNC vision recognition cutting machine, comprising a frame, a vision assembly, a tool holder assembly, and a moving assembly. The moving assembly includes a guide rail and a moving frame that slides along the guide rail path. The tool holder assembly includes a mounting base and a cutting component, a lifting component, and a punching component integrated on the mounting base. The lifting component drives the mounting base to move longitudinally reciprocally. The vision assembly is located on the top of the frame and corresponds to the frame's worktable. The punching component includes a punch rod and a punching cylinder that drives the punch rod to punch holes. The punch rod has a through chip removal channel, and the upper end of the punch rod is connected to a chip collection component. The vision assembly includes a linear camera bracket and several camera components. The camera bracket extends parallel to the guide rail, and the camera components are fixedly mounted on the camera bracket at equal intervals. The chip collection assembly includes a chip collection box, a vacuum generator, and a three-stage pipeline system. The vacuum generator has an upper interface, a negative pressure interface, and a lower interface. The upper interface is connected to an external air source through an air supply pipeline. The negative pressure interface is connected to the chip removal channel of the punch rod through a negative pressure pipeline. The lower interface is connected to the chip collection box through a chip removal pipeline. When the air source supplies air to the upper interface of the vacuum generator, the waste chips are sequentially discharged into the chip collection box through the chip removal channel, the negative pressure pipeline, the vacuum generator, and the chip removal pipeline.

[0006] As a preferred embodiment of this utility model, the vacuum generator includes an upper cover and a base. The lower end of the upper cover is integrally formed or fixedly connected to a Laval nozzle, which is connected to the upper interface. The base is provided with a receiving cavity and a negative pressure cavity that extend coaxially with the Laval nozzle. The axis of the negative pressure cavity intersects the receiving cavity perpendicularly. The Laval nozzle extends into the receiving cavity, and the negative pressure interface is coaxially connected to the negative pressure cavity.

[0007] As a preferred embodiment of this utility model, the Laval nozzle protrudes from the lower end face of the upper cover, and the Laval nozzle is inserted into the inlet of the receiving cavity.

[0008] As a preferred embodiment of this utility model, the vacuum generator is symmetrically arranged with two working units, each unit including: an independent upper interface and a Laval nozzle; an independent negative pressure interface and a negative pressure chamber; and an independent lower interface; wherein the two negative pressure interfaces are respectively connected to the chip removal channels of different punch rods.

[0009] As a preferred technical solution of this utility model, the chip collection box includes: a chip collection base: fixedly installed on a movable frame, with a slide rail with a guide groove at the bottom; and a chip collection drawer: with sliding plates on both sides that match the guide groove, which are installed in the chip collection base by sliding cooperation.

[0010] As a preferred embodiment of the present invention, the cutting assembly includes a pneumatic blade rod rotatably mounted on the mounting base. The mounting base is provided with two sets of punching assemblies arranged side by side, with the two sets of punching assemblies located on the same side of the mounting base. On the other side of the mounting base, which is relatively far from the two sets of punching assemblies, a pressing cylinder assembly is provided. This cylinder assembly includes two independent cylinders, with a paintbrush and a punch respectively mounted on the lower end of their piston rods.

[0011] As a preferred embodiment of this utility model, each of the stamping cylinders is connected to a connecting block at its upper end, and the lower end of the connecting block is rotatably connected to the punch rod. The lower end of the stamping cylinder is connected to a pressing foot via a connecting rod. A synchronous rotating rod is movably connected to the outside of the punch rod. The synchronous rotating rod is linked to the cutting assembly via a transmission belt, and the synchronous rotating rod can drive the punch rod to rotate. A first compression spring is provided between the connecting block and the synchronous rotating rod, and the first compression spring is sleeved on the punch rod. A second compression spring is provided between the stamping cylinder and the pressing foot, and the second compression spring is sleeved on the connecting rod. A punch is installed at the lower end of the punch rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The core improvement of this invention lies in abandoning the traditional solution of "direct connection or short-path connection between the vacuum generator's lower interface and the chip collection box," and creatively introducing an extended chip discharge pipeline. This pipeline forms an effective buffer channel between the vacuum generator's lower interface and the chip collection box inlet. When the high-speed discharged chip flow passes through this extended pipeline: the path is extended, and kinetic energy is dissipated: the chip collides and rubs against the pipe wall multiple times, effectively dissipating its kinetic energy and significantly reducing the flow velocity; direct high-speed impact is avoided: when the chip finally enters the chip collection box, its velocity has significantly decreased, greatly weakening the high-speed, high-frequency, and hard "slapping" effect of the chip flow on the inner wall of the chip collection box (especially the bottom). While maintaining efficient chip collection capacity, it specifically and effectively solves the problem of sharp and piercing noise caused by the high-speed, direct impact of the chip flow on the chip collection box in traditional solutions.

[0014] 2. Compared with traditional single-point vision systems, this design arranges multiple independent vision components at intervals along the linear direction of the cutting mechanism's movement trajectory. This distribution method achieves seamless full coverage of long strips or large areas of workpieces to be cut, completely eliminating blind spots or edge distortion caused by the limited field of view of a single camera. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the vision assembly in this utility model;

[0017] Figure 3 This is a schematic diagram of the front structure of the tool holder assembly in this utility model;

[0018] Figure 4 This is a structural schematic diagram of the back of the tool holder assembly in this utility model;

[0019] Figure 5 This is a schematic diagram of the vacuum generator in this utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the vacuum generator cover in this utility model;

[0021] Figure 7 This is a schematic diagram of the structure of the vacuum generator base in this utility model;

[0022] Figure 8 This is a cross-sectional view of the vacuum generator in this utility model;

[0023] Figure 9 This is a schematic diagram of the punching component in this utility model.

[0024] Reference numerals: 1. Frame; 2. Vision assembly; 3. Tool holder assembly; 4. Moving assembly; 5. Guide rail; 6. Moving frame; 7. Mounting base; 8. Cutting assembly; 9. Lifting assembly; 10. Punching assembly; 11. Punch bar; 12. Punching cylinder; 13. Chip collection assembly; 14. Camera bracket; 15. Camera assembly; 16. Chip collection box; 17. Vacuum generator; 18. Upper interface; 19. Negative pressure interface; 20. Lower interface ; 21. Negative pressure pipeline; 22. Chip discharge pipeline; 23. Top cover; 24. Base; 25. Laval nozzle; 26. Receiving chamber; 27. Negative pressure chamber; 28. Chip collection base; 29. ​​Slide rail; 30. Chip collection drawer; 31. Slide plate; 32. Pneumatic cutter bar; 33. Downward pressure cylinder assembly; 34. Connecting block; 35. Pressing foot; 36. Synchronous rotating rod; 37. First compression spring; 38. Second compression spring; 39. Connecting rod. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] like Figures 1-9 The CNC vision recognition cutting machine shown includes a frame 1, a vision assembly 2, a tool holder assembly 3, and a moving assembly 4. The moving assembly 4 includes a guide rail 5 and a moving frame 6 that slides along the path of the guide rail 5 (this is prior art, and the specific working principle is not described in detail in this application). The tool holder assembly 3 includes a mounting base 7 and a cutting component 8, a lifting component 9, and a punching component 10 integrated on the mounting base 7. The lifting component 9 drives the mounting base 7 to move longitudinally reciprocally. The vision assembly 2 is located on the top of the frame 1 and corresponds to the worktable of the frame 1. The punching component 10 includes a punch rod 11 and a punching cylinder 12 that drives the punch rod 11 to punch holes. The punch rod 11 has a through chip removal channel, and the upper end of the punch rod 11 is connected to a chip collection component 13. The vision assembly 2 includes a linear camera bracket 14 and several camera components 15. The camera bracket 14 slides along the horizontal path of the camera. Extending along the guide rail 5, several camera components 15 (commercially available, their working principle not described in detail) are fixedly installed on the camera bracket 14 at equal intervals. The chip collection assembly 13 includes a chip collection box 16, a vacuum generator 17, and a three-stage pipeline system. The vacuum generator 17 has an upper interface 18, a negative pressure interface 19, and a lower interface 20. The upper interface 18 is connected to an external air source through an air supply pipeline. The negative pressure interface 19 is connected to the chip removal channel of the punch rod 11 through a negative pressure pipeline 21. The lower interface 20 is connected to the chip collection box 16 through a chip removal pipeline 22. When the air source supplies air to the upper interface 18 of the vacuum generator 17, the waste chips are sequentially discharged into the chip collection box 16 through the chip removal channel, the negative pressure pipeline 21, the vacuum generator 17, and the chip removal pipeline 22. This application does not involve any improvement to the air source control principle of the vacuum generator 17, so it is not described in detail.

[0028] Compared with traditional single-point vision systems, this design arranges multiple independent vision components at intervals along the linear direction of the cutting mechanism's movement trajectory. This distribution method achieves seamless full coverage of long strips or large areas of workpieces to be cut, completely eliminating blind spots or edge distortion caused by the limited field of view of a single camera.

[0029] The core improvement of this invention lies in abandoning the traditional scheme of "direct connection or short path connection between the lower interface 20 of the vacuum generator 17 and the chip collection box 16" and creatively introducing an extended chip discharge pipe 22. This pipe forms an effective buffer channel between the lower interface 20 of the vacuum generator 17 and the inlet of the chip collection box 16. When the high-speed discharged waste chip flow passes through this extended pipe: the path is extended, and kinetic energy is dissipated: the waste chip collides and rubs against the pipe wall multiple times, and its kinetic energy is effectively dissipated, and the flow velocity is significantly reduced; direct high-speed impact is avoided: when the waste chip finally enters the chip collection box 16, its velocity has been significantly reduced, which greatly weakens the high-speed, high-frequency, hard "slapping" effect of the waste chip flow on the inner wall (especially the bottom) of the chip collection box 16. While maintaining the efficient waste chip collection capacity, it specifically and effectively solves the problem of sharp and piercing noise caused by the high-speed and direct impact of the waste chip flow on the chip collection box 16 in the traditional scheme.

[0030] The vacuum generator 17 includes an upper cover 23 and a base 24. The lower end of the upper cover 23 is integrally formed or fixedly connected to a Laval nozzle 25, which communicates with an upper interface 18. The base 24 is provided with a receiving cavity 26 and a negative pressure cavity 27 extending coaxially with the Laval nozzle 25. The axis of the negative pressure cavity 27 intersects the receiving cavity 26 perpendicularly. The Laval nozzle 25 extends into the receiving cavity 26, and the negative pressure interface 19 communicates coaxially with the negative pressure cavity 27. In this embodiment, the Laval nozzle 25 protrudes from the lower end face of the upper cover 23, and the Laval nozzle 25 is inserted into the inlet of the receiving cavity. The working principle of the vacuum generator 17 is the prior art. The main purpose of this application is to optimize the layout and improve the assembly structure.

[0031] The vacuum generator 17 adopts a split design with a top cover 23 and a base 24. The Laval nozzle 25 (fixed to the top cover 23) is inserted into the receiving chamber 26 of the base 24 to ensure precise alignment and smooth airflow. The structure in which the negative pressure chamber 27 and the receiving chamber 26 intersect perpendicularly optimizes the negative pressure generation area, enabling the negative pressure interface 19 to more efficiently suck up waste. This structural design improves the generator's pneumatic efficiency and operational stability.

[0032] The vacuum generator 17 is symmetrically arranged with two working units. Each unit includes: an independent upper interface 18 and a Laval nozzle 25; an independent negative pressure interface 19 and a negative pressure chamber 27; and an independent lower interface 20. The two negative pressure interfaces 19 are respectively connected to the chip removal channels of different punch rods 11.

[0033] The chip collection box 16 includes: a chip collection base 28, which is fixedly installed on the movable frame 6 and has a slide rail 29 with a guide groove at the bottom; and a chip collection drawer 30, which has sliding plates 31 on both sides that match the guide groove and are installed in the chip collection base 28 by sliding fit.

[0034] The system employs a modular design with a fixed chip collection base 28 and a sliding chip collection drawer 30. Slide plates 31 are located on both sides of the drawer, matching the guide rails 29 at the bottom of the base. To clean up the chips, simply pull the chip collection drawer 30 smoothly out of the chip collection base 28 along the rails 29, empty the chips, and push it back in. This design eliminates the need for complete disassembly, making maintenance extremely simple and quick, effectively reducing equipment downtime, and conforming to ergonomic principles.

[0035] The cutting assembly 8 includes a pneumatic cutter bar 32 rotatably mounted on the mounting base 7. The mounting base 7 is provided with two sets of punching assemblies 10 arranged side by side, with the two sets of punching assemblies 10 located on the same side of the mounting base 7. On the other side of the mounting base 7, which is relatively far away from the two sets of punching assemblies 10, there is a pressing cylinder group 33. This cylinder group includes two independent cylinders, with a paintbrush and a punch respectively mounted on the lower end of their piston rods.

[0036] Each of the stamping cylinders 12 has a connecting block 34 connected to its upper end. The lower end of the connecting block 34 is rotatably connected to the punch rod 11. The lower end of the stamping cylinder 12 is connected to a pressing foot 35 via a connecting rod 39. A synchronous rotating rod 36 is movably connected to the outside of the punch rod 11. The synchronous rotating rod 36 is linked to the cutting assembly 8 via a transmission belt, and the synchronous rotating rod 36 can drive the punch rod 11 to rotate. A first compression spring 37 is provided between the connecting block 34 and the synchronous rotating rod 36, and the first compression spring 37 is sleeved on the punch rod 11. A second compression spring 38 is provided between the stamping cylinder 12 and the pressing foot 35, and the second compression spring 38 is sleeved on the connecting rod 39. A punch is installed at the lower end of the punch rod 11. The cutting assembly 8 and the punching assembly 10 in this application are prior art. This application only optimizes the layout, so they are not described in detail.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples of this utility model and are not intended to limit it. Various changes and modifications can be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A CNC vision recognition cutting machine, comprising a frame (1), a vision assembly (2), a tool holder assembly (3), and a moving assembly (4), wherein the moving assembly (4) comprises a guide rail (5) and a moving frame (6) that slides along the path of the guide rail (5); the tool holder assembly (3) comprises a mounting base (7) and a cutting component (8), a lifting component (9), and a punching component (10) integrated on the mounting base (7); the lifting component (9) drives the mounting base (7) to move longitudinally reciprocally; the vision assembly (2) is disposed on the top of the frame (1) and corresponds to the worktable of the frame (1); the punching component (10) comprises a punch rod (11) and a punching cylinder (12) for driving the punch rod (11) to punch; the punch rod (11) is provided with a through chip removal channel; the upper end of the punch rod (11) is connected to a chip collection component (13); characterized in that: The vision assembly (2) includes a linear camera bracket (14) and several camera components (15). The camera bracket (14) extends in a direction parallel to the guide rail (5), and the several camera components (15) are fixedly installed on the camera bracket (14) in an equally spaced manner. The chip collection assembly (13) includes a chip collection box (16), a vacuum generator (17), and a three-stage pipeline system. The vacuum generator (17) has an upper interface (18), a negative pressure interface (19), and a lower interface. The upper interface (18) is connected to an external air source through an air supply pipeline. The negative pressure interface (19) is connected to the chip removal channel of the punch rod (11) through a negative pressure pipeline (21). The lower interface (20) is connected to the chip collection box (16) through a chip removal pipeline (22). When the air source supplies air to the upper interface (18) of the vacuum generator (17), the waste chips are sequentially discharged into the chip collection box (16) through the chip removal channel, the negative pressure pipeline (21), the vacuum generator (17), and the chip removal pipeline (22).

2. The CNC vision recognition cutting machine according to claim 1, characterized in that: The vacuum generator (17) includes an upper cover (23) and a base (24). The lower end of the upper cover (23) is integrally formed or fixedly connected to a Laval nozzle (25), which is connected to the upper interface (18). The base (24) is provided with a receiving cavity (26) and a negative pressure cavity (27) extending coaxially with the Laval nozzle (25). The axis of the negative pressure cavity (27) intersects the receiving cavity (26) perpendicularly. The Laval nozzle (25) extends into the receiving cavity (26), and the negative pressure interface (19) is coaxially connected to the negative pressure cavity (27).

3. The CNC vision recognition cutting machine according to claim 2, characterized in that: The Laval nozzle (25) protrudes from the lower end face of the upper cover (23), and the Laval nozzle (25) is inserted into the inlet of the receiving cavity.

4. The CNC vision recognition cutting machine according to claim 2, characterized in that: The vacuum generator (17) is symmetrically arranged with two working units. Each unit includes: an independent upper interface (18) and a Laval nozzle (25); an independent negative pressure interface (19) and a negative pressure chamber (27); and an independent lower interface (20). The two negative pressure interfaces (19) are respectively connected to the chip removal channels of different punch rods (11).

5. The CNC vision recognition cutting machine according to claim 1, characterized in that: The chip collection box (16) includes: a chip collection base (28): fixedly installed on the movable frame (6), with a slide rail (29) with a guide groove at the bottom; and a chip collection drawer (30): with sliding plates (31) on both sides that match the guide groove, which are installed in the chip collection base (28) by sliding fit.

6. The CNC vision recognition cutting machine according to claim 1, characterized in that: The cutting assembly (8) includes a pneumatic knife bar (32) rotatably mounted on the mounting base (7). The mounting base (7) is provided with two sets of punching assemblies (10) arranged side by side, and the two sets of punching assemblies (10) are located on the same side of the mounting base (7). The mounting base (7) is provided with a pressing cylinder group (33) on the other side away from the two sets of punching assemblies (10). The cylinder group includes two independent cylinders, and a paintbrush and a punch are respectively mounted on the lower end of their piston rods.

7. The CNC vision recognition cutting machine according to claim 6, characterized in that: Each of the stamping cylinders (12) is connected to a connecting block (34) at its upper end. The lower end of the connecting block (34) is rotatably connected to the punch rod (11). The lower end of the stamping cylinder (12) is connected to a pressing foot (35) via a connecting rod (39). A synchronous rotating rod (36) is movably connected to the outside of the punch rod (11). The synchronous rotating rod (36) is linked to the cutting assembly (8) via a transmission belt, and the synchronous rotating rod (36) can drive the punch rod (11) to rotate. A first compression spring (37) is provided between the connecting block (34) and the synchronous rotating rod (36), and the first compression spring (37) is sleeved on the punch rod (11). A second compression spring (38) is provided between the stamping cylinder (12) and the pressing foot (35), and the second compression spring (38) is sleeved on the connecting rod (39). A punch is installed at the lower end of the punch rod (11).

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