Numerical control grooving machine

Abstract

The invention discloses a numerical control grooving machine, and relates to the technical field of turning equipment, the numerical control grooving machine comprises a rack assembly, an upper guide rail and a lower guide rail are oppositely arranged on the rack assembly up and down, and a workbench is connected between the upper guide rail and the lower guide rail; the sliding frame is arranged between the upper guide rail and the lower guide rail, and the upper end and the lower end of the sliding frame are slidably connected with the upper guide rail and the lower guide rail respectively. The grooving assembly comprises a spindle box arranged on the sliding frame in a sliding mode, a cutter and a first driving mechanism are arranged on the spindle box, and the first driving mechanism drives the cutter to be close to or away from the workbench; the fixing assembly comprises clamping pieces oppositely arranged on the upper side and the lower side of the workbench. The upper guide rail and the lower guide rail provide sliding guide for the sliding frame, the spindle box slides up and down along the sliding frame, the cutter is driven by the first driving mechanism to be close to or away from the workbench and makes contact with a workpiece, and the two clamping pieces are arranged on the inner sides of the upper guide rail and the lower guide rail in parallel and clamp the workpiece from the upper side and the lower side.

Description

Technical Field

[0001] This invention relates to the field of turning equipment technology, and in particular to a CNC grooving machine. Background Technology

[0002] In the field of machining, CNC grooving machines are widely used for grooving materials such as metals, plastics, and wood. During grooving operations, especially in high-speed cutting scenarios, the cutting force between the tool and the workpiece can easily cause slight displacement, shaking, or vibration of the workpiece. Even if some equipment has a basic workpiece support structure, it is difficult to form a stable and suitable constraint on the workpiece. This unstable situation will directly cause the relative position of the tool and the workpiece to deviate from the preset machining trajectory, which not only leads to deviations in the groove dimensions, failing to meet the accuracy requirements of precision machining, but also causes scratches and unevenness on the groove wall due to workpiece shaking, seriously affecting the smoothness of the groove wall. Summary of the Invention

[0003] To improve the stability of grooving cutting, this application provides a CNC grooving machine.

[0004] The CNC grooving machine provided in this application adopts the following technical solution: A CNC grooving machine includes: a frame assembly comprising a base, a support column on the rear side of the base, an upper guide rail and a lower guide rail arranged opposite each other on the frame assembly, the upper guide rail being disposed on the upper end of the support column, the lower guide rail being disposed on the base, and a worktable connecting the upper guide rail and the lower guide rail; a sliding frame disposed between the upper guide rail and the lower guide rail, the upper and lower ends of the sliding frame being slidably connected to the upper guide rail and the lower guide rail respectively; a grooving assembly comprising a spindle box slidably disposed on the sliding frame, the spindle box being provided with a cutting tool and a first driving mechanism, the first driving mechanism driving the cutting tool to move closer to or away from the worktable; and a fixing assembly comprising clamping members arranged opposite each other on the upper and lower sides of the worktable, the two clamping members being arranged parallel to each other inside the upper guide rail and the lower guide rail.

[0005] By adopting the above technical solution, the upper and lower guide rails, arranged vertically opposite each other, provide lateral sliding guidance for the sliding frame. The worktable is connected between the two guide rails to support the workpiece to be slotted. The spindle box of the slotting assembly is slidably mounted on the sliding frame and slides up and down along the frame. The tool mounted on the spindle box is driven by the first drive mechanism to move closer to or away from the worktable, thereby contacting the workpiece. The two clamping members of the fixing assembly are arranged parallel to each other inside the upper and lower guide rails, clamping the workpiece from both sides, improving the positioning accuracy of the workpiece and meeting the requirements of precision slotting processing.

[0006] Optionally, the frame assembly is provided with a second drive mechanism, which includes a transverse lead screw and a transverse drive member. The transverse lead screw is arranged parallel to the upper guide rail and is threadedly connected to the sliding frame. Both ends of the transverse lead screw are rotatably connected to the transverse guide rail. The transverse drive member is arranged on the transverse guide rail and its output end is connected to one end of the transverse lead screw.

[0007] By adopting the above technical solution, after the lateral drive component is started, it drives the lateral lead screw to rotate, thereby driving the slide frame to move smoothly along the direction of the upper guide rail. The first guide rail supports both ends of the lateral lead screw, reducing the swaying of the slide frame during movement, improving the lateral positioning accuracy of the slide frame, providing high-precision position adjustment for the grooving assembly, and ensuring the positional accuracy of subsequent grooving processing.

[0008] Optionally, the sliding frame is provided with a third drive mechanism, which includes a longitudinal lead screw and a longitudinal drive member. The longitudinal lead screw is arranged parallel to the sliding frame and is threadedly connected to the spindle box. Both ends of the longitudinal lead screw are rotatably connected to the longitudinal guide rail. The longitudinal drive member is arranged on the longitudinal guide rail and its output end is connected to one end of the longitudinal lead screw.

[0009] By adopting the above technical solution, the threaded drive drives the spindle box to slide longitudinally along the slide frame. The supporting effect of the longitudinal guide rail reduces the positional deviation when the longitudinal screw rotates, making the movement trajectory of the spindle box controllable. Combined with the lateral movement of the second drive mechanism, the tool on the spindle box can move freely to the required processing position, improving the processing flexibility and positioning accuracy of the equipment.

[0010] Optionally, the spindle box is equipped with an electric spindle, the electric spindle is connected to a tool holder, and the tool is connected to the side of the tool holder near the worktable.

[0011] By adopting the above technical solution, the electric spindle set on the spindle box serves as the core of power output, providing stable and high-speed speed output. One end of the tool holder is connected to the electric spindle, and the other end is connected to the tool. The high speed characteristics of the electric spindle are suitable for high-speed cutting scenarios. The connection structure of the tool holder ensures that there is no significant loss or deviation in the power transmission process, reduces the vibration when the tool rotates, and ensures the smoothness of the groove wall in the grooving process.

[0012] Optionally, the tool holder is provided with a hydraulic chuck, which is located at the end of the tool holder away from the electric spindle, and the tool is connected to the hydraulic connector.

[0013] By adopting the above technical solution, the hydraulic chuck achieves uniform wrapping clamping of the tool shank through hydraulic drive. The clamping force is stable and evenly distributed, which can firmly fix the tool and avoid tool loosening, movement, or radial runout during high-speed cutting. The clamping method of the hydraulic chuck will not damage the tool shank, effectively extending the tool's service life. At the same time, its high-precision clamping characteristics ensure the repeatability of positioning accuracy after tool replacement, keeping the groove accuracy consistent when machining different tools, adapting to the needs of multi-tool switching machining, and ensuring the stability of overall machining quality.

[0014] Optionally, the spindle box includes a mounting housing, a sliding seat is provided inside the mounting housing, the sliding seat is slidably connected to the inner side wall of the mounting housing, the mounting housing is provided with the first drive mechanism, the output end of the first drive mechanism is connected to the sliding seat, the first drive mechanism drives the sliding seat to move away from or towards the worktable within the mounting housing, and the electric spindle is disposed on the sliding seat.

[0015] By adopting the above technical solution, the sliding seat is slidably connected to the inner wall of the mounting housing, improving the smoothness of the sliding seat's movement and providing guidance for its sliding. The output end of the first drive mechanism on the mounting housing is connected to the sliding seat, which can control the sliding seat to slide away from or towards the worktable along the mounting housing. The electric spindle is fixed on the sliding seat and moves synchronously with it, achieving precise control of the tool feed distance and adapting to the grooving requirements of different depths.

[0016] Optionally, the lower guide rail is disposed on the front side of the base, and the worktable is tilted backward.

[0017] By adopting the above technical solution, the lower guide rail is located on the front side of the base, and the upper guide rail is connected to the upper end of the support column, thus forming a stable triangular support structure. The worktable is tilted backward, so that the workpiece placed on the worktable does not require additional fixing components for fixation due to vertical placement. The center of gravity of the workpiece will be located on the worktable rather than at the bottom support structure, thereby preventing the workpiece from shifting during the grooving process.

[0018] Optionally, the worktable includes a plurality of horizontally arranged support ribs, which are arranged in parallel and positioned between two clamping members.

[0019] By adopting the above technical solution, multiple horizontally arranged support ribs of the worktable are distributed parallel between the two clamping components, providing evenly distributed support points for the workpiece placed on the worktable and avoiding local deformation caused by uneven support forces. The structural design of multiple support ribs enhances the overall load-bearing capacity of the worktable and can be adapted to the processing of workpieces of different sizes and weights.

[0020] Optionally, the workbench further includes multiple support frames arranged perpendicular to the support ribs. The upper and lower ends of the support frames are respectively connected to the upper guide rail and the lower guide rail. The multiple support frames are arranged in parallel and connected to the multiple support ribs.

[0021] By adopting the above technical solution, multiple support frames perpendicular to the support ribs are connected to the upper and lower guide rails at their upper and lower ends, respectively, forming a crisscrossing workbench support structure, which greatly enhances the overall rigidity and deformation resistance of the workbench and provides a flat and stable support foundation for the workpiece.

[0022] Optionally, the support rib protrusions are provided on the support frame, and a receiving space is formed between two adjacent support ribs.

[0023] By adopting the above technical solution, the accommodating space formed between two adjacent support ribs can be used to place strip-shaped workpieces, allowing multiple strip-shaped workpieces to be independently embedded in different accommodating spaces, realizing the orderly placement of batch workpieces. This enables the grooving operation of batch strip-shaped workpieces on the workbench, shortening the batch processing time and improving work efficiency.

[0024] Optionally, flexible padding layers are provided on both the upper and lower sides of the support rib.

[0025] By adopting the above technical solution, the flexible pads set on the upper and lower sides of the support rib can closely adhere to the surface of the workpiece when they come into contact with the workpiece and are squeezed. The flexible pads can absorb the vibration of the workpiece during the grooving process, ensuring the dimensional accuracy of the groove and the smoothness of the groove wall.

[0026] Optionally, the support rib is provided with a plurality of suction cup assemblies on the side facing the slotted assembly, the suction cup assemblies are spaced apart along the length direction of the support rib, and the suction cup assemblies are connected to a pneumatic assembly.

[0027] By adopting the above technical solution, multiple suction cup components are spaced apart along the length of the support rib facing the slotted component. Through the connected pneumatic components, negative pressure adsorption force is generated to uniformly adsorb the workpiece at multiple points. This forms a double fixing structure with the mechanical clamping of the clamping component, which improves the reliability of workpiece fixing and avoids workpiece displacement or shaking during high-speed cutting. The spacing of the suction cup components ensures that the adsorption force is uniformly applied to the workpiece surface, and the magnitude of the adsorption force can be flexibly adjusted by the pneumatic components.

[0028] Optionally, an elastic layer is provided on the side of the two clamping members that are close to each other.

[0029] By adopting the above technical solution, the elastic layer set on the side of the two clamping parts that are close to each other will fit tightly against the surface of the workpiece when clamping it, which will enhance the clamping fit and stability and ensure that the workpiece remains stable during the processing.

[0030] Optionally, the sliding frame is provided with an operating platform, which is electrically connected to the slotted assembly.

[0031] By adopting the above technical solution, operators can control the equipment at close range next to the sliding frame. The operating platform can receive real-time operating status data of the grooving components, such as rotation speed and feed rate. At the same time, operators are allowed to directly input processing programs, adjust processing parameters, or quickly start and stop commands in case of emergencies, which shortens the operation response time and facilitates timely optimization of processing parameters and handling of abnormal situations.

[0032] Optionally, the spindle box is equipped with a sensor module, which is electrically connected to the operating platform.

[0033] By adopting the above technical solution, key data such as cutting force, vibration amplitude, and wear degree during the tool cutting process are monitored in real time. The monitored signals are transmitted to the operating platform, enabling operators to keep abreast of the processing dynamics and promptly detect abnormalities such as tool chipping and excessive vibration. This avoids processing defects or safety accidents caused by equipment failure. The real-time data provided by the sensor module provides a precise basis for optimizing and adjusting processing parameters, helping operators to adjust parameters such as feed rate and rotation speed in a targeted manner, thereby improving processing quality and efficiency, while ensuring long-term stable operation of the equipment.

[0034] In summary, this application includes at least one of the following beneficial effects: 1. The transverse drive mechanism drives the transverse lead screw to move the slide frame laterally along the transverse guide rail, and the longitudinal drive mechanism drives the longitudinal lead screw to move the spindle box longitudinally along the longitudinal guide rail. In conjunction with the first drive mechanism, the sliding seat drives the electric spindle to realize tool feed. Relying on the lead screw thread transmission and guide rail support, the transmission deviation and shaking are reduced, so that the tool can be flexibly adjusted to any processing position to adapt to the processing requirements of different slots.

[0035] 2. The elastic layer of the clamping component and the flexible pad layer of the supporting rib tightly adhere to the workpiece surface through elastic deformation. The suction cup assembly generates multi-point adsorption on the workpiece through the pneumatic component, forming a synergistic fixation with the mechanical clamping, improving the reliability of workpiece fixation and reducing workpiece displacement or shaking during high-speed cutting.

[0036] 3. The crisscrossing arrangement of support ribs and support frame, combined with the tilted worktable, allows the workpiece to be placed stably on the worktable. At the same time, there is also a space between the support ribs, into which strip-shaped workpieces can be inserted. This allows the equipment to be used for grooving large-area plate-shaped workpieces, as well as for processing batches of strip-shaped workpieces, making the equipment more flexible and practical. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall structure of a CNC grooving machine according to an embodiment of this application.

[0038] Figure 2 This is a partial schematic diagram of a CNC grooving machine according to an embodiment of this application.

[0039] Figure 3 This is a partial cross-sectional view of the slotted component in an embodiment of this application.

[0040] Figure 4 This is a schematic diagram of the overall structure of a CNC grooving machine according to an embodiment of this application.

[0041] Figure 5 This is a side view of a CNC grooving machine according to an embodiment of this application.

[0042] Figure 6 yes Figure 5 A magnified view of a portion of point A in the middle.

[0043] Figure 7 This is a partial exploded view of the workbench in an embodiment of this application.

[0044] Figure 8 This is a partial schematic diagram of a CNC grooving machine according to an embodiment of this application.

[0045] Explanation of reference numerals in the attached figures: 1. Frame assembly; 11. Base; 12. Support column; 13. Upper guide rail; 14. Lower guide rail; 15. Second drive mechanism; 151. Transverse lead screw; 152. Transverse drive component; 153. Transverse guide rail; 2. Workbench; 21. Support rib; 211. Flexible pad; 212. Suction cup assembly; 213. T-shaped part; 214. Locking part; 215. Pneumatic connector; 216. Sliding block; 22. Support frame; 2201. Sliding groove; 3. Sliding frame; 31. Third drive mechanism; 311. Longitudinal lead screw; 312. Longitudinal drive component; 313. Longitudinal guide rail; 32. Operating platform; 4. Slotting assembly; 41. Spindle box; 411. Mounting housing; 412. Sliding seat; 42. Cutting tool; 43. First drive mechanism; 44. Electric spindle; 45. Tool holder; 451. Hydraulic chuck; 5. Fixing component; 51. Upper clamping component; 52. Lower clamping component; 53. Elastic layer; 6. Rewinding assembly; 61. Winch; 62. Wire rope; 621. Pulling component; 63. Connecting rope; 631. Connecting component. Detailed Implementation

[0046] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0047] This application discloses a CNC grooving machine. (Refer to...) Figures 1 to 3 The system includes a frame assembly 1, which includes a base 11. Multiple support columns 12 are arranged parallel to each other on the rear side of the base 11. An upper guide rail 13 and a lower guide rail 14 are arranged opposite each other vertically on the frame assembly 1. The upper guide rail 13 is connected to the upper ends of the multiple support columns 12, and the lower guide rail 14 is mounted on the base 11. A worktable 2 connects the upper and lower guide rails 13 and 14. A sliding frame 3 is arranged between the upper and lower guide rails 13 and 14, with its upper and lower ends slidably connected to the upper and lower guide rails 13 and 14, respectively. A slotting assembly 4 is slidably arranged along the length of the sliding frame 3. The slotting assembly 4 includes a spindle box 41, on which a first drive mechanism 43 is mounted, and a cutting tool 42 is mounted on the output end of the first drive mechanism 43. An upper clamping member 51 and a lower clamping member 52 are arranged opposite each other on the worktable 2. The upper clamping member 51 and the lower clamping member 52 are arranged parallel to each other between the upper guide rail 13 and the lower guide rail 14 and are located on the upper and lower sides of the worktable 2. The upper guide rail 13 is connected to the upper end of the support column 12, and the lower guide rail 14 is fixed to the base 11, forming a symmetrical guide structure that provides a stable lateral sliding reference for the sliding frame 3. The upper and lower ends of the sliding frame 3 are slidably connected to the upper guide rail 13 and the lower guide rail 14, respectively. The grooving assembly 4 is slidably arranged along the length of the sliding frame 3. In conjunction with the first drive mechanism 43, it can drive the tool 42 to approach or move away from the worktable 2, so as to realize the docking of the tool 42 with the workpiece and thus carry out the grooving operation. The upper clamping member 51 and the lower clamping member 52 are arranged parallel to each other on the upper and lower sides of the worktable 2, clamping and fixing the workpiece from both directions, effectively limiting the displacement and shaking of the workpiece during processing, and improving the positioning accuracy of the workpiece.

[0048] In a preferred embodiment, refer to Figure 2 The frame assembly 1 is equipped with a second drive mechanism 15, which includes a horizontal guide rail 153 mounted on the upper guide rail 13. A horizontal lead screw 151, parallel to the upper guide rail 13, is mounted in the middle of the horizontal guide rail 153. The two ends of the horizontal lead screw 151 are rotatably connected to the horizontal guide rail 153. The horizontal lead screw 151 passes through the upper end of the slide frame 3 and is threadedly connected to the slide frame 3. A horizontal drive component 152 is mounted on the horizontal guide rail 153, and the output end of the horizontal drive component 152 is connected to one end of the horizontal lead screw 151. Specifically, the horizontal drive component 152 is a servo motor. The horizontal lead screw 151 passes through the upper end of the slide frame 3 and is threadedly connected to the slide frame 3. The output end of the horizontal drive component 152 is connected to one end of the horizontal lead screw 151. The horizontal drive component 152 outputs torque to drive the horizontal lead screw 151 to rotate at a uniform speed, converting the rotational motion into the lateral linear motion of the slide frame 3 through threaded transmission.

[0049] In a preferred embodiment, refer to Figure 2A third drive mechanism 31 is provided on the sliding frame 3. The third drive mechanism 31 includes a longitudinal guide rail 313 on the sliding frame 3. A longitudinal lead screw 311, parallel to the sliding frame 3, is provided in the middle of the longitudinal guide rail 313. The two ends of the longitudinal lead screw 311 are rotatably connected to the longitudinal guide rail 313. The longitudinal lead screw 311 passes through one side of the spindle box 41 and is threadedly connected to the spindle box 41. A longitudinal drive component 312 is provided on the longitudinal guide rail 313. The output end of the longitudinal drive component 312 is connected to one end of the longitudinal lead screw 311. Specifically, the longitudinal drive component 312 is a servo motor. The longitudinal lead screw 311 passes through one side of the spindle box 41 and is threadedly connected to the spindle box 41. The output end of the longitudinal drive component 312 is connected to one end of the longitudinal lead screw 311. When the longitudinal drive component 312 is working, it drives the longitudinal lead screw 311 to rotate smoothly, and drives the spindle box 41 to slide longitudinally along the longitudinal guide rail 313 through threaded transmission.

[0050] In a preferred embodiment, refer to Figure 3 The spindle box 41 includes a mounting housing 411 with an opening facing the worktable 2. A sliding seat 412 is disposed within the mounting housing 411, slidably connected to the inner wall of the mounting housing 411. A first drive mechanism 43 is disposed within the mounting housing 411, with its output end connected to the sliding seat 412. The first drive mechanism 43 drives the sliding seat 412 to move towards or away from the worktable 2. An electric spindle 44 is mounted on the sliding seat 412, with its output end connected to a tool holder 45. A cutting tool 42 is connected to the side of the tool holder 45 closest to the worktable 2. Specifically, the first drive mechanism 43 is a servo cylinder. The mounting housing 411 of the spindle box 41 provides a closed mounting space for the internal components. The first drive mechanism 43, disposed within the mounting housing 411 and with its output end connected to the sliding seat 412, can control the movement of the sliding seat 412 towards or away from the worktable 2, controlling the feed distance of the cutting tool 42 to adapt to different depth grooving requirements. The electric spindle 44 is fixed on the sliding seat 412 and moves synchronously with the sliding seat 412, providing a stable and high-speed rotational output for the tool 42.

[0051] In a preferred embodiment, refer to Figure 3 A hydraulic chuck 451 is provided on the tool holder 45, located at the end of the tool holder 45 away from the electric spindle 44, and connected to the tool 42. Specifically, the hydraulic chuck 451 includes a hydraulic bolt that passes through one side of the tool holder 45 and clamps the tool 42 onto the tool holder 45. The clamping force of the hydraulic chuck 451 is controllable, preventing damage to the shank of the tool 42, effectively extending the service life of the tool 42, and facilitating the easy loading and unloading of the tool 42. This ensures the repeatability of the tool 42 after replacement, adapts to the needs of switching between multiple tools 42, and guarantees the consistency of groove accuracy during machining with different tools 42.

[0052] In a preferred embodiment, refer to Figure 4 and 5 The worktable 2 is tilted backward. The worktable 2 includes multiple horizontally arranged support ribs 21, which are parallel to each other and located between two clamping members. Multiple support frames 22 are connected to the side of the support ribs 21 facing away from the slotting assembly 4. The support frames 22 are perpendicular to the support ribs 21 and are parallel to each other. The upper and lower ends of the support frames 22 are connected to the upper guide rail 13 and the lower guide rail 14, respectively. The tilted backward orientation of the worktable 2 ensures that the center of gravity of the workpiece placed on the worktable 2 falls on the surface of the worktable 2 rather than on the bottom support structure, preventing workpiece swaying or shifting during slotting due to a shift in the center of gravity. The multiple horizontally arranged and parallel support ribs 21, located between the two clamping members, provide evenly distributed support points for the workpiece. The support frames 22, perpendicular to the support ribs 21 and connected to the upper and lower guide rails 13 and 14, respectively, form a crisscrossing support structure with the support ribs 21, further enhancing the overall rigidity and deformation resistance of the worktable 2.

[0053] In a preferred embodiment, refer to Figure 6 The support ribs 21 protrude from the support frame 22, and an accommodating space is formed between two adjacent support ribs 21. Each adjacent support rib 21 forms an independent accommodating space, allowing multiple strip-shaped workpieces to be independently embedded into different accommodating spaces. This enables the orderly placement of batch strip-shaped workpieces, avoiding stacking, collisions, or displacement between workpieces, providing a foundation for batch grooving operations, shortening preparation time for batch processing, and improving operational efficiency.

[0054] In a preferred embodiment, refer to Figure 6 Flexible pads 211 are provided on both the upper and lower sides of the support rib 21, and the flexible pads 211 are set in the receiving space. When the workpiece is placed in the receiving space, the flexible pads 211 will undergo elastic deformation due to compression, and tightly fit the upper and lower surfaces of the workpiece. The elastic properties of the flexible pads 211 themselves can effectively absorb the vibration energy generated during the grooving process, reduce the transmission of vibration to the workpiece, and prevent the workpiece from displacement, shaking or resonance due to vibration, thus ensuring the dimensional accuracy of the groove and the smoothness of the groove wall during grooving.

[0055] In a preferred embodiment, refer to Figure 6The support rib 21 has a T-shaped portion 213 near the grooving assembly 4. The T-shaped portion 213 has a support surface near the grooving assembly 4 and locking portions 214 extending upwards and downwards. The locking portions 214 reduce the opening of the receiving space, thereby locking the workpiece within the receiving space. The locking portions 214 effectively reduce the opening size of the receiving space, locking the workpiece placed in the receiving space and forming a longitudinal constraint, preventing the workpiece from coming out of the opening of the receiving space or shifting longitudinally due to the impact of cutting forces during high-speed cutting. The locking portions 214 form a close fit support with the upper and lower edges of the workpiece, further improving the stability of the workpiece within the receiving space, ensuring that the workpiece always maintains the preset processing position during grooving, and ensuring the accuracy of the groove processing, especially suitable for processing easily shifted workpieces such as strips.

[0056] In a preferred embodiment, refer to Figures 4 to 6 Multiple suction cup assemblies 212 are provided on the side of the support rib 21 facing the slotted assembly 4. The suction cup assemblies 212 are spaced apart on the support surface and arranged along the length of the support rib 21. Multiple suction cup assemblies 212 on one support rib 21 are connected to the same pneumatic assembly. The pneumatic connectors 215 of the suction cup assemblies 212 and the pneumatic assembly are located on one side of the length of the support rib 21. The pneumatic assembly can precisely control the suction cup assemblies 212 to generate a stable negative pressure suction force. The multiple suction cup assemblies 212 with multiple spacings form a multi-point uniform adsorption of the workpiece, enhancing the fit between the workpiece and the support surface. Together with the mechanical clamping of the clamping component, it forms a double fixing structure, reducing shaking or displacement of the workpiece during processing. At the same time, the centralized layout of the pneumatic connectors 215 facilitates pipeline connection, maintenance and repair, improving the convenience of equipment use.

[0057] In a preferred embodiment, refer to Figure 7 and 8The support frame 22 has a sliding groove 2201 along its length on the side facing the support rib 21. Multiple sliding blocks 216 are spaced apart on the side of the support rib 21 near the support frame 22. Multiple sliding blocks 216 are also spaced apart on the side of the lower clamping member 52 near the support frame 22. The multiple sliding blocks 216 are correspondingly arranged within the sliding groove 2201 of each support frame 22, allowing both the support rib 21 and the lower clamping member 52 to slide along the length of the support frame 22. A winding assembly 6 is provided at the bottom of the upper guide rail 13. The winding assembly 6 includes two winches 61 arranged opposite each other, a wire rope 62 connected to the output end of the winches 61, and connecting ropes 63 provided at both ends of the workbench 2. The winding shafts of the two winches 61 are coaxially connected. The wire rope 62 passes through the upper clamping member 51, multiple support ribs 21, and the lower clamping member 52 from top to bottom, and reaches the bottom of the lower clamping member 52. The lowermost end of the wire rope 62 is fixedly connected to a lifting member 621, which is located at the bottom of the lower clamping member 52. The upper clamping member 51 is fixedly mounted on the support frame 22. The upper end of the connecting rope 63 is located at the bottom of the upper guide rail 13, and the lower end passes through multiple support ribs 21 and the lower clamping member 52 from top to bottom, and reaches the bottom of the lower clamping member 52. Multiple connecting members 631 are fixedly arranged at intervals on the connecting rope 63, and the connecting members 631 are located at the bottom of the support ribs 21 and the bottom of the lower clamping member 52.

[0058] The sliding block 216 can slide smoothly in the sliding groove 2201, allowing the support ribs 21 to flexibly adjust their spacing along the length of the support frame 22 to adapt to the processing requirements of workpieces with different widths. In the winding assembly 6 at the bottom of the upper guide rail 13, the winding shafts of the two winches 61 are coaxially connected to ensure that the wire ropes 62 on both sides are wound and unwound synchronously. The wire ropes 62 pass through the upper clamping member 51, multiple support ribs 21 and the lower clamping member 52 from top to bottom and are fixed to the lifting member 621 at the bottom. The upper clamping member 51 is fixed on the support frame 22. When the winch 61 is working, it pulls the lifting member 621 through the wire rope 62, which drives the lower clamping member 52 to rise and fall.

[0059] The upper end of the connecting rope 63 is fixed to the bottom of the upper guide rail 13, and the lower end passes through the support rib 21 and the lower clamping member 52. Connecting members 631, spaced apart on the connecting rope 63, limit the bottom of the support rib 21 and the lower clamping member 52. When the wire rope 62 is not wound, the support of the connecting rope 63 and the connecting members 631 allows the support rib 21 to maintain a spaced arrangement on the support frame 22. When the wire rope 62 is wound, the lower clamping member 52 continuously rises, thereby lifting the lower support ribs 21 sequentially upwards, achieving the winding of the support ribs 21. During the winding process, the width of the accommodating space decreases, and the accommodating space between the lower support ribs 21 narrows preferentially until the support ribs 21 contact each other or two adjacent support ribs 21 clamp the workpiece in the accommodating space. Thus, in a batch of grooving operations, workpieces of different widths can be placed in each accommodating space, and these workpieces can also be fixed on the worktable 2. This enhances the equipment's flexibility in adapting to workpieces of different widths, while also meeting the batch grooving requirements for workpieces of different specifications in the same batch, thereby improving processing practicality and operational efficiency.

[0060] In a preferred embodiment, refer to Figure 6 Both the lower side of the upper clamping member 51 and the upper part of the lower clamping member 52 are provided with elastic layers 53. When clamping the workpiece, the elastic layer 53 will undergo elastic deformation according to the shape of the upper and lower surfaces of the workpiece, achieving a tight fit with the workpiece surface. Even if there are slight irregularities or unevenness on the workpiece surface, the contact area will be covered. The flexible properties of the elastic layer 53 can buffer the impact of the clamping force on the workpiece, avoiding damage such as indentations and scratches on the workpiece surface caused by rigid clamping, thus protecting the appearance quality and structural integrity of the workpiece.

[0061] In a preferred embodiment, refer to Figure 4The sliding frame 3 is also equipped with an operating platform 32, which is electrically connected to the grooving assembly 4. A sensor module is installed on the spindle box 41 to collect equipment status information during the grooving process. Specifically, the sensor module includes an acoustic emission sensor, which is electrically connected to the PLC of the control system and the operating platform 32 via signal lines. During normal cutting, the tool 42 generates a stable acoustic emission signal. When the tool 42 experiences micro-chipping or is about to chip, material fracture and abrupt structural changes in the tool 42 during cutting will cause significant changes in the spectral characteristics of the acoustic emission signal. The sensor array collects the acoustic emission signal during the cutting process in real time, transmits it to the PLC, and performs filtering and feature extraction using a built-in spectrum analysis algorithm. The collected spectrum is compared with a preset normal cutting spectrum threshold. When the spectral characteristics exceed the normal range, it is determined to be a tool chipping warning signal. Through multi-directional signal acquisition by the acoustic emission sensor array, real-time monitoring of the tool 42's status is achieved, enabling the capture of abnormal signals in the early stages of tool chipping and issuing early warnings. Operators can stop the machine in time to replace the cutting tool 42, avoiding workpiece scrap and equipment damage caused by the expansion of chipped edge, and reducing production losses.

[0062] The above are all preferred embodiments of this application. These embodiments are merely explanations of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A CNC grooving machine, characterized in that, include: A frame assembly (1) includes a base (11), a support column (12) is provided on the rear side of the base (11), and an upper guide rail (13) and a lower guide rail (14) are arranged opposite each other on the frame assembly (1). The upper guide rail (13) is located on the upper end of the support column (12), and the lower guide rail (14) is located on the base (11). A worktable (2) is connected between the upper guide rail (13) and the lower guide rail (14). A sliding frame (3) is disposed between the upper guide rail (13) and the lower guide rail (14), and the upper and lower ends of the sliding frame (3) are slidably connected to the upper guide rail (13) and the lower guide rail (14) respectively. The grooving assembly (4) includes a spindle box (41) slidably mounted on the slide frame (3), and the spindle box (41) is provided with a cutting tool (42) and a first drive mechanism (43), the first drive mechanism (43) driving the cutting tool (42) to move closer to or away from the worktable (2). The fixing component (5) includes clamping members disposed opposite to each other on the upper and lower sides of the worktable (2), and the two clamping members are disposed parallel to each other on the inner sides of the upper guide rail (13) and the lower guide rail (14).

2. The CNC grooving machine according to claim 1, characterized in that: The frame assembly (1) is provided with a second drive mechanism (15), which includes a transverse lead screw (151) and a transverse drive member (152). The transverse lead screw (151) is arranged parallel to the upper guide rail (13) and is threadedly connected to the sliding frame (3). The two ends of the transverse lead screw (151) are rotatably connected to the transverse guide rail (153). The transverse drive member (152) is arranged on the transverse guide rail (153) and its output end is connected to one end of the transverse lead screw (151).

3. A CNC grooving machine according to claim 2, characterized in that: The sliding frame (3) is provided with a third drive mechanism (31), which includes a longitudinal lead screw (311) and a longitudinal drive member (312). The longitudinal lead screw (311) is arranged parallel to the sliding frame (3) and is threadedly connected to the spindle box (41). The two ends of the longitudinal lead screw (311) are rotatably connected to the longitudinal guide rail (313). The longitudinal drive member (312) is arranged on the longitudinal guide rail (313) and its output end is connected to one end of the longitudinal lead screw (311).

4. A CNC grooving machine according to claim 1, characterized in that: The spindle box (41) is equipped with an electric spindle (44), the electric spindle (44) is connected to a tool holder (45), and the tool holder (45) is connected to the tool (42) on the side of the worktable (2).

5. A CNC grooving machine according to claim 4, characterized in that: The tool holder (45) is provided with a hydraulic chuck (451), which is located at the end of the tool holder (45) away from the electric spindle (44), and the cutting tool (42) is connected to the hydraulic chuck (451).

6. A CNC grooving machine according to claim 4, characterized in that: The spindle box (41) includes a mounting housing (411), a sliding seat (412) is provided inside the mounting housing (411), the sliding seat (412) is slidably connected to the inner side wall of the mounting housing (411), the mounting housing (411) is provided with a first drive mechanism (43), the output end of the first drive mechanism (43) is connected to the sliding seat (412), the first drive mechanism (43) drives the sliding seat (412) to move away from or closer to the worktable (2) inside the mounting housing (411), and the electric spindle (44) is disposed on the sliding seat (412).

7. A CNC grooving machine according to claim 1, characterized in that: The lower guide rail (14) is located on the front side of the base (11), and the worktable (2) is tilted to the rear.

8. A CNC grooving machine according to claim 7, characterized in that: The workbench (2) includes a plurality of horizontally arranged support ribs (21), which are arranged in parallel and are positioned between two clamping members.

9. A CNC grooving machine according to claim 8, characterized in that: The workbench (2) also includes multiple support frames (22) arranged perpendicular to the support ribs (21). The upper and lower ends of the support frames (22) are respectively connected to the upper guide rail (13) and the lower guide rail (14). The multiple support frames (22) are arranged in parallel, and the support frames (22) are connected to the multiple support ribs (21).

10. A CNC grooving machine according to claim 9, characterized in that: The support rib (21) protrudes onto the support frame (22), and an accommodating space is formed between two adjacent support ribs (21).

11. A CNC grooving machine according to claim 10, characterized in that: The support rib (21) is provided with flexible pads (211) on both the upper and lower sides.

12. A CNC grooving machine according to claim 8, characterized in that: The support rib (21) is provided with a plurality of suction cup assemblies (212) on the side facing the slotted assembly (4). The suction cup assemblies (212) are spaced apart along the length of the support rib (21), and the suction cup assemblies (212) are connected to a pneumatic assembly.

13. A CNC grooving machine according to claim 1, characterized in that: An elastic layer (53) is provided on the side of the two clamping members that are close to each other.

14. A CNC grooving machine according to claim 1, characterized in that: The sliding frame (3) is equipped with an operating platform (32), which is electrically connected to the slotted assembly (4).

15. A CNC grooving machine according to claim 14, characterized in that: The spindle box (41) is equipped with a sensor module, which is electrically connected to the operating platform (32).

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