An auxiliary chip-removing structure for grinding head of a water cutting machine
By designing an auxiliary chip removal structure on the grinding head of the waterjet cutting machine, and utilizing the combination of an electric telescopic rod and a liquid storage tank, efficient cleaning of the grinding head is achieved. This solves the problem of wear and low efficiency caused by chip accumulation in the grinding head, and improves the stability and production efficiency of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN CITY DEFA TECH CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-26
AI Technical Summary
Waterjet cutting machine grinding heads generate a large number of fine chips during high-speed rotation. If these chips are not cleaned in time, they will cause abnormal wear of the grinding head, reducing its service life and grinding efficiency.
An auxiliary chip removal structure for the grinding head of a waterjet cutting machine was designed, including a mounting bracket, an electric telescopic rod, a liquid reservoir, a cleaning hood, and nozzles. Through the cooperation of the electric telescopic rod and the drive assembly, the axial movement and synchronous rotation of the liquid reservoir are realized. The cleaning fluid is sprayed at an angle of 30-45° onto the cutting edge of the grinding head and the chip accumulation area. The flat fan-shaped nozzles are arranged in an alternating pattern to cover a larger chip removal range, and the guide groove guides the waste chips away from the cleaning hood to avoid secondary adhesion.
It improves the cleaning efficiency of the grinding head, extends the service life of the grinding head, enhances the processing stability and production efficiency of the waterjet cutting machine, and reduces the risk of grinding head clogging and overheating.
Smart Images
Figure CN224407137U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of waterjet cutting equipment, and in particular to an auxiliary chip removal structure for the grinding head of a waterjet cutting machine. Background Technology
[0002] The grinding head (or dressing head, grinding head) of a waterjet cutting machine is a key component used for precision dressing, deburring, and polishing of workpieces (such as hard and brittle materials like glass, ceramics, and stone) after waterjet cutting. The grinding head of a waterjet cutting machine usually uses diamond grinding wheels or CBN (cubic boron nitride) grinding wheels, which are suitable for processing high-hardness materials such as glass and ceramics due to their extremely high hardness and wear resistance.
[0003] During the processing of waterjet cutting machines, the grinding head (or diamond grinding wheel) is used to precisely trim and polish hard and brittle materials such as glass and ceramics after cutting. However, due to the high-speed rotation of the grinding head and its contact with the workpiece, a large number of fine chips (glass powder, ceramic particles, etc.) are easily generated. If these chips are not cleaned in time, they may cause abnormal wear of the grinding head, reduce its service life, and reduce grinding efficiency.
[0004] For example, chips adhering to the surface of the grinding head can affect its cutting performance and may cause defects such as burrs and scratches on the glass edge, affecting the processing quality. If a large amount of chips enters the grinding head bearing or drive mechanism, it may also cause jamming, overheating or even equipment damage. Utility Model Content
[0005] This utility model discloses an auxiliary chip removal structure for the grinding head of a waterjet cutting machine, which aims to solve the technical problem that due to the high-speed rotation of the grinding head and its contact with the workpiece, a large number of fine chips (glass powder, ceramic particles, etc.) are easily generated. If these chips are not cleaned in time, they may lead to abnormal wear of the grinding head, reduce its service life, and reduce grinding efficiency.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An auxiliary chip removal structure for a waterjet cutting machine grinding head includes a mounting frame, with a connecting frame on one inner wall of the mounting frame. It also includes an electric telescopic rod on the top outer wall of the connecting frame, a drive assembly fixedly connected to the movable end of the electric telescopic rod, and a liquid storage cylinder connected to the movable end of the electric telescopic rod via an angular contact bearing. A cleaning cover is fixedly connected to the outer circumference of the liquid storage cylinder near its bottom outer wall. The inner wall of the cleaning cover has twelve connecting pipes, one end of each connecting pipe having a nozzle. The liquid storage cylinder has an annular distribution chamber, which is connected to the twelve connecting pipes via twelve solenoid valves. The end of each connecting pipe away from the nozzle communicates with the interior of the liquid storage cylinder.
[0008] The above technical solution can improve the cleaning efficiency of the grinding head, extend its service life, and enhance the processing stability and production efficiency of the waterjet cutting machine. Specifically, when the grinding head needs to grind the cut glass block, the electric telescopic rod pushes the drive assembly and the liquid reservoir to move axially along the connecting frame, so that the cleaning cover is close to the working surface of the grinding head. The liquid reservoir is connected to the movable end of the electric telescopic rod through an angular contact bearing, so that it can move axially with the electric telescopic rod and rotate synchronously with the drive assembly. The second motor in the limit box drives the grinding head to rotate. The control module opens the solenoid valve as needed, so that the cleaning fluid in the liquid reservoir is diverted to the corresponding nozzle through the annular distribution chamber and sprayed at a 30-45° angle onto the grinding head cutting edge and chip accumulation area. The staggered arrangement of the flat fan-shaped nozzles covers a larger chip cleaning range, and the guide groove guides the waste chips away from the cleaning cover to avoid secondary adhesion.
[0009] In a preferred embodiment, the drive assembly includes a first motor, limiting frames are provided on both outer walls of the connecting frame, a fixing frame is provided on the outer wall of the movable end of the electric telescopic rod, two fixing brackets are fixedly connected to the outer wall of the fixing frame, a mounting plate is provided on one outer wall of the fixing frame, connecting blocks are provided on both outer walls of the mounting plate, the connecting blocks are slidably connected to the inner wall of the limiting frame, the first motor and a support frame are provided on the bottom outer wall of the mounting plate, a second gear is fixedly connected to the output shaft of the first motor, the bottom of the second gear is connected to the top outer wall of the support frame through a bearing, and a first toothed ring is provided on the circumferential outer wall of the liquid storage cylinder, the teeth of the first toothed ring meshing with the second gear.
[0010] In this design, when the electric telescopic rod pushes the drive assembly and the liquid reservoir close to the machining surface of the grinding head, the first motor is activated. The output shaft of the first motor drives the second gear to rotate, which in turn drives the first gear ring to rotate. This, in turn, drives the liquid reservoir to rotate around its central axis, causing the nozzle to cover the grinding head surface in a spiral trajectory. The second motor drives the grinding head to rotate for grinding. The rotation and axial movement of the cleaning shroud achieve dynamic chip removal, preventing grinding head clogging or overheating. The sliding fit between the limit bracket and the connecting block ensures smooth movement of the drive assembly during the extension and retraction of the electric telescopic rod, preventing vibration or deviation and improving chip removal stability.
[0011] As described above, an auxiliary chip removal structure for a waterjet cutting machine grinding head includes a mounting frame, with a connecting frame on one inner wall of the mounting frame. It also includes an electric telescopic rod on the top outer wall of the connecting frame, a drive assembly fixedly connected to the movable end of the electric telescopic rod, and a liquid storage cylinder connected to the movable end of the electric telescopic rod via an angular contact bearing. A cleaning cover is fixedly connected to the outer circumference of the liquid storage cylinder near the bottom outer wall. The inner wall of the cleaning cover has twelve connecting pipes, one end of each connecting pipe having a nozzle. The liquid storage cylinder has an annular distribution chamber, which is connected to the twelve connecting pipes via twelve solenoid valves. The end of each connecting pipe away from the nozzle communicates with the interior of the liquid storage cylinder. This auxiliary chip removal structure for a waterjet cutting machine grinding head provides the technical effects of improving the cleaning efficiency of the grinding head, extending its service life, and enhancing the processing stability and production efficiency of the waterjet cutting machine. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of an auxiliary chip removal structure for the grinding head of a waterjet cutting machine proposed in this utility model.
[0013] Figure 2 This is a schematic diagram of the drive assembly structure of the auxiliary chip removal structure of the grinding head of a waterjet cutting machine proposed in this utility model.
[0014] Figure 3 This is a schematic diagram of the cleaning cover structure of the auxiliary chip removal structure of the grinding head of a waterjet cutting machine proposed in this utility model.
[0015] Figure 4 This is a schematic diagram of the nozzle structure of the auxiliary chip removal structure of the grinding head of a waterjet cutting machine proposed in this utility model.
[0016] Figure 5 This is a cross-sectional view of the cleaning cover of the auxiliary chip removal structure of the grinding head of a waterjet cutting machine proposed in this utility model.
[0017] In the attached diagram: 1. Mounting bracket; 2. Connecting bracket; 3. Electric telescopic rod; 4. Liquid storage tank; 5. Limiting bracket; 6. First gear ring; 7. Grinding head; 8. Cleaning cover; 9. Mounting plate; 10. Support frame; 11. Connecting block; 12. Fixing bracket; 13. First motor; 14. Second gear; 15. Nozzle; 16. Connecting pipe; 17. Fixing bracket; 18. Second motor. Detailed Implementation
[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0019] The auxiliary chip removal structure for the grinding head of a waterjet cutting machine disclosed in this utility model is mainly used in scenarios where a large number of fine chips (glass powder, ceramic particles, etc.) are easily generated due to the high-speed rotation of the grinding head and its contact with the workpiece. If these chips are not cleaned in time, they may cause abnormal wear of the grinding head, reduce its service life, and result in low grinding efficiency.
[0020] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 An auxiliary chip removal structure for a waterjet cutting machine grinding head includes a mounting frame 1. A connecting frame 2 is provided on one inner wall of the mounting frame 1. The structure also includes an electric telescopic rod 3 on the top outer wall of the connecting frame 2. A drive assembly is fixedly connected to the movable end of the electric telescopic rod 3. A liquid storage cylinder 4 is connected to the movable end of the electric telescopic rod 3 through an angular contact bearing. A cleaning cover 8 is fixedly connected to the outer circumference of the liquid storage cylinder 4 near the bottom outer wall. Twelve connecting pipes 16 are provided on the inner wall of the cleaning cover 8. A nozzle 15 is provided at one end of each connecting pipe 16. An annular distribution chamber is provided inside the liquid storage cylinder 4. The annular distribution chamber is connected to the twelve connecting pipes 16 through twelve solenoid valves. The end of the connecting pipe 16 away from the nozzle 15 is connected to the interior of the liquid storage cylinder 4.
[0021] It should be noted that the liquid storage tank 4 is equipped with a control module. The control module controls the opening and closing of twelve solenoid valves through an independent circuit to achieve precise zoned spraying of cleaning fluid. The control module and solenoid valves are not shown in the attached drawings.
[0022] The twelve nozzles 15 are arranged in a flat fan shape, with adjacent nozzles 15 staggered. The spray angle of the nozzles 15 is 30-45° with the horizontal plane. The staggered spray of multiple nozzles 15 combined with the rotational motion can remove more than 90% of micron-sized chips, reduce grinding head wear, and prevent overheating or clogging of the grinding head caused by chip accumulation in real time, thereby increasing the continuous operation time of the equipment.
[0023] In practical use, fixed brackets 17 are provided on both outer walls of the drive assembly. The bottom outer wall of the liquid storage cylinder 4 is connected to a limit box through a bearing. The limit box is fixedly connected to the two fixed brackets 17. A second motor 18 is provided inside the limit box. The output shaft of the second motor 18 is fixedly connected to the grinding head 7. The second motor 18 in the limit box directly drives the grinding head 7 to rotate for grinding. At the same time, the liquid storage cylinder 4 achieves dynamic chip removal through the drive assembly and the electric telescopic rod 3, integrating the grinding and chip removal functions into the same structure, reducing the space occupied by the equipment and improving the processing efficiency.
[0024] The cleaning cover 8 has a frustum-shaped structure. The bottom edge of the cleaning cover 8 is 5-10mm away from the working end face of the grinding head 7. Several guide grooves are provided on the inner wall of the cleaning cover 8. This design can expand the chip removal coverage area, ensure that the cutting edge of the grinding head and the surrounding area can be fully cleaned, reduce the chip removal blind area, and allow the cleaning fluid sprayed by the nozzle 15 to act directly on the surface of the grinding head. It can also avoid affecting the grinding process due to the distance being too close. The guide grooves on the inner wall of the cleaning cover 8 can effectively guide the flow direction of chips and cleaning fluid, and prevent chips from accumulating in the cleaning cover 8.
[0025] In the specific implementation process, the connecting frame 2 has an "L" shaped structure. The "L" shaped connecting frame 2 adopts a unique spatial layout, integrating vertical support and horizontal load-bearing functions into one, achieving multi-directional force support within a limited installation space, and providing support in the axial direction of the electric telescopic rod 3 and the radial direction of rotation of the liquid storage cylinder 4, forming a stable motion guidance system.
[0026] Specifically, when the grinding head 7 needs to grind the cut glass block, the electric telescopic rod 3 pushes the drive assembly and the liquid storage tank 4 to move axially along the connecting frame 2, so that the cleaning cover 8 is close to the working surface of the grinding head 7. The liquid storage tank 4 is connected to the movable end of the electric telescopic rod 3 through an angular contact bearing, so that it can move axially with the electric telescopic rod 3 and rotate synchronously with the drive assembly. The second motor 18 in the limit box drives the grinding head 7 to rotate. The control module opens the solenoid valve as needed, so that the cleaning liquid in the liquid storage tank 4 is diverted to the corresponding nozzle 15 through the annular distribution chamber and sprayed at a 30-45° angle to the grinding head cutting edge and the chip accumulation area. The staggered arrangement of the flat fan-shaped nozzles 15 covers a larger chip removal range, and the guide groove guides the waste chips away from the cleaning cover 8 to avoid secondary adhesion.
[0027] Reference Figure 1 and Figure 2In a preferred embodiment, the drive assembly includes a first motor 13, limiting frames 5 are provided on both outer walls of the connecting frame 2, a fixed frame 12 is provided on the outer wall of the movable end of the electric telescopic rod 3, two fixed brackets 17 are fixedly connected to the outer wall of the fixed frame 12, a mounting plate 9 is provided on one outer wall of the fixed frame 12, connecting blocks 11 are provided on both outer walls of the mounting plate 9, the connecting blocks 11 are slidably connected to the inner wall of the limiting frame 5, the first motor 13 and a support frame 10 are provided on the bottom outer wall of the mounting plate 9, the output shaft of the first motor 13 is fixedly connected to a second gear 14, the bottom of the second gear 14 is connected to the top outer wall of the support frame 10 through a bearing, and a first toothed ring 6 is provided on the circumferential outer wall of the liquid storage cylinder 4, the teeth of the first toothed ring 6 meshing with the second gear 14.
[0028] The speed ratio of the first motor 13 to the second motor 18 is 1:5. The lower speed of the liquid storage tank 4 relative to the grinding head 7 ensures that the cleaning fluid is sprayed onto the surface of the grinding head in a uniform and controllable manner, avoiding splashing or uneven spraying of the cleaning fluid due to excessive speed.
[0029] Specifically, when the electric telescopic rod 3 pushes the drive assembly and the liquid storage cylinder 4 close to the processing surface of the grinding head 7, the first motor 13 is started. The output shaft of the first motor 13 drives the second gear 14 to rotate, and the second gear 14 drives the first gear ring 6 to rotate, thereby driving the liquid storage cylinder 4 to rotate around its central axis. This causes the nozzle 15 to cover the surface of the grinding head in a spiral trajectory. The second motor 18 drives the grinding head 7 to rotate for grinding. The rotation and axial movement of the cleaning cover 8 achieve dynamic chip removal, avoiding clogging or overheating of the grinding head. The sliding cooperation between the limit frame 5 and the connecting block 11 ensures that the drive assembly moves smoothly when the electric telescopic rod 3 extends and retracts, avoiding vibration or deviation and improving chip removal stability.
[0030] Working principle: When the grinding head 7 needs to grind the cut glass block, the electric telescopic rod 3 pushes the drive assembly and the liquid storage tank 4 to move axially along the connecting frame 2, so that the cleaning cover 8 is close to the working surface of the grinding head 7. The liquid storage tank 4 is connected to the movable end of the electric telescopic rod 3 through an angular contact bearing, so that it can move axially with the electric telescopic rod 3 and rotate synchronously with the drive assembly. The second motor 18 in the limit box drives the grinding head 7 to rotate. The control module opens the solenoid valve as needed, so that the cleaning liquid in the liquid storage tank 4 is diverted to the corresponding nozzle 15 through the annular distribution chamber and sprayed at a 30-45° angle onto the grinding head edge and the chip accumulation area. The staggered arrangement of the flat fan-shaped nozzles 15 covers a larger chip removal range, and the guide groove guides the waste chips away from the cleaning cover 8 to avoid secondary adhesion.
[0031] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.
Claims
1. An auxiliary chip removal structure for the grinding head of a waterjet cutting machine, comprising a mounting bracket (1), characterized in that, The mounting bracket (1) has a connecting bracket (2) on one inner wall, and also includes: an electric telescopic rod (3) on the top outer wall of the connecting bracket (2), a drive assembly fixedly connected to the movable end of the electric telescopic rod (3), a liquid storage cylinder (4) connected to the movable end of the electric telescopic rod (3) through an angular contact bearing, a cleaning cover (8) fixedly connected to the outer circumference of the liquid storage cylinder (4) near the bottom outer wall, twelve connecting pipes (16) on the inner wall of the cleaning cover (8), a nozzle (15) on one end of the connecting pipe (16), an annular distribution cavity inside the liquid storage cylinder (4), the annular distribution cavity being connected to the twelve connecting pipes (16) respectively through twelve solenoid valves, and the end of the connecting pipe (16) away from the nozzle (15) communicating with the interior of the liquid storage cylinder (4).
2. The auxiliary chip removal structure for the grinding head of a waterjet cutting machine according to claim 1, characterized in that, The twelve nozzles (15) are arranged in a flat fan shape, and two adjacent nozzles (15) are staggered. The spray angle of the nozzles (15) is 30-45° with the horizontal plane.
3. The auxiliary chip removal structure for the grinding head of a waterjet cutting machine according to claim 2, characterized in that, The drive assembly has fixed brackets (17) on both sides of its outer wall. The bottom outer wall of the liquid storage cylinder (4) is connected to a limit box via a bearing. The limit box is fixedly connected to the two fixed brackets (17). The limit box is equipped with a second motor (18). The output shaft of the second motor (18) is fixedly connected to a grinding head (7).
4. The auxiliary chip removal structure for the grinding head of a waterjet cutting machine according to claim 3, characterized in that, The cleaning cover (8) has a frustum-shaped structure. The bottom edge of the cleaning cover (8) is 5-10mm away from the working end face of the grinding head (7). Several guide grooves are provided on the inner wall of the cleaning cover (8).
5. The auxiliary chip removal structure for the grinding head of a waterjet cutting machine according to claim 4, characterized in that, The connecting frame (2) has an "L" shaped structure.
6. The auxiliary chip removal structure for the grinding head of a waterjet cutting machine according to claim 3, characterized in that, The drive assembly includes a first motor (13), and limit frames (5) are provided on both outer walls of the connecting frame (2). A fixed frame (12) is provided on the outer wall of the movable end of the electric telescopic rod (3). Two fixed brackets (17) are fixedly connected to the outer wall of the fixed frame (12). A mounting plate (9) is provided on one outer wall of the fixed frame (12). A connecting block (11) is provided on both outer walls of the mounting plate (9). The connecting block (11) is slidably connected to the inner wall of the limit frame (5). The first motor (13) and a support frame (10) are provided on the bottom outer wall of the mounting plate (9). A second gear (14) is fixedly connected to the output shaft of the first motor (13). The bottom of the second gear (14) is connected to the top outer wall of the support frame (10) through a bearing. A first toothed ring (6) is provided on the circumferential outer wall of the liquid storage cylinder (4). The teeth of the first toothed ring (6) mesh with the second gear (14).
7. The auxiliary chip removal structure for the grinding head of a waterjet cutting machine according to claim 6, characterized in that, The speed ratio of the first motor (13) to the second motor (18) is 1:5.