A guide mechanism for a water cutting head
By using a displacement device that works with a drive motor and a long screw, and a cylinder-driven guide frame, combined with ball bearings and a negative pressure detector, the problems of movement flexibility and stability of the waterjet cutting head guide mechanism are solved, achieving precise adjustment and efficient cutting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING WUTAI STAINLESS STEEL PROD CO LTD
- Filing Date
- 2025-07-05
- Publication Date
- 2026-06-16
AI Technical Summary
The existing waterjet cutting head guide mechanism lacks flexibility in movement when adjusting its position, resulting in a large limitation on the workpiece processing position and insufficient operational stability. It is prone to twisting or jamming, which affects cutting accuracy and equipment life.
The device employs a displacement mechanism that combines a drive motor with a long screw and a cylinder-driven guide frame. By reducing friction through ball bearings, it achieves precise adjustment and stable movement of the waterjet cutting head. Combined with a negative pressure detector, it ensures the stability of the cutting process.
It improves the mobility and operational stability of waterjet cutting heads, broadens their application range, reduces the risk of equipment failure, and enhances cutting accuracy and equipment lifespan.
Smart Images
Figure CN224360332U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waterjet cutting technology, and in particular to a guide mechanism for a waterjet cutting head. Background Technology
[0002] Waterjet cutting technology, as a cold cutting technology, has developed rapidly in recent years and is widely used in the cutting and processing of various metals, non-metals, glass, and stone. Its application areas are also gradually expanding to aerospace composite materials, biomedicine, autoclaving, and engineering demolition. In waterjet cutting equipment, the guiding mechanism of the cutting head plays a crucial role in cutting accuracy and efficiency. However, existing technologies have some problems. On the one hand, the structural design of traditional waterjet cutting head guiding devices often results in poor flexibility in the movement of the cutting head when adjusting its position. This limits the movement of the cutting position, resulting in a large limitation on the workpiece's processing position and greatly restricting the applicability of the waterjet cutting machine. Furthermore, some existing waterjet cutting head guiding mechanisms lack operational stability. Some guiding mechanisms rely on simple guide keys for locking; if the fixation is loose, gaps easily occur in various directions, causing the cutting head to twist during movement, affecting cutting accuracy. If the fixation is too tight, jamming can easily occur, reducing work efficiency, shortening equipment lifespan, and increasing maintenance costs. Therefore, it is necessary to design a waterjet cutting head guiding mechanism to solve these problems. Utility Model Content
[0003] The main objective of this invention is to provide a guide mechanism for waterjet cutting heads, which can effectively solve the problems in the background art.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A waterjet cutting head guide mechanism includes a guide fixing frame, a mounting base fixedly connected to the right end of the guide fixing frame, a displacement device fixedly connected to the upper end of the mounting base, and a main body device fixedly connected inside the displacement device.
[0006] The displacement device includes a drive motor, the output end of which passes through the guide fixing frame and is fixedly connected to a long screw. The outer surface of the long screw is movably connected to a displacement frame. A power supply box is fixedly connected to the middle of the right end of the displacement frame. A front frame is fixedly connected to the front end of the displacement frame. An upper plate is fixedly connected to the upper end of the front frame. Guide grooves are opened on the front part of the left frame wall and the front part of the right frame wall of the front frame. The drive motor is fixedly connected to the right end of the guide fixing frame.
[0007] Preferably, the main device includes a cylinder, the output end of which passes through the upper plate and is fixedly connected to a fixing block. A guide frame is fixedly connected to the front end of the fixing block, a negative pressure detector is provided at the front end of the guide frame, a connecting pipe is provided at the front end of the negative pressure detector, and a gun head body is fixedly connected to the other end of the connecting pipe. A fixing pipe is fixedly connected to the upper end of the gun head body, and a gun head main body device is fixedly connected to the upper end of the fixing pipe. Side limiting blocks are fixedly connected to the left and right ends of the guide frame, and multiple ball bearings are provided in the side limiting blocks. A water outlet is fixedly connected to the lower middle part of the gun head body, and an external water pipe is fixedly connected to the upper left part of the gun head main body device. The cylinder is fixedly connected to the upper middle part of the upper plate.
[0008] Preferably, the side limiting block is a cuboid block structure, and a plurality of the ball bearings are evenly distributed within the side limiting block, with the ball bearing portions protruding from the surface of the side limiting block.
[0009] Preferably, the power cord of the drive motor is connected to a power supply box, and the power supply box supplies power to the drive motor.
[0010] Preferably, the left end of the long screw is movably connected to the left wall of the guide fixing frame via a bearing, the axis of the bearing coincides with the axis of the long screw, and the displacement frame slides linearly left and right along the length direction of the guide fixing frame when the drive motor drives the long screw to rotate.
[0011] Preferably, the two side limiting blocks are slidably connected in the guide groove, and the main body of the gun head is fixedly connected to the guide frame by welding.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. In this utility model, the displacement device, through the cooperation of the drive motor and the long screw, can precisely control the displacement frame to slide linearly left and right along the length of the guide frame. At the same time, the cylinder in the main device can drive the guide frame to move, realizing precise adjustment of the vertical position of the gun head. Compared with the limited position adjustment method of the traditional waterjet cutting head guide device, this structural design greatly improves the flexibility of the waterjet cutting head in the horizontal and vertical directions, effectively solves the problem of large limitations in the workpiece processing position, and thus broadens the application range of the waterjet cutting machine, enabling it to meet the needs of more complex processing scenarios.
[0014] 2. In this utility model, the displacement frame slides stably as the long screw rotates, and the power supply box moves synchronously with the displacement frame to avoid pulling on the power cord. The inner limit block of the main device cooperates with the guide groove, and the rolling of the ball reduces friction, ensuring the stability and smoothness of the guide frame movement and preventing the cutting head from twisting during movement. Compared with the existing guide mechanism that relies on simple guide key locking, which is prone to loosening and gaps or being too tight and jamming, this patented structure effectively improves the stability of equipment operation, ensures cutting accuracy, reduces cutting errors caused by equipment instability, and reduces the risk of damage caused by equipment jamming and other problems. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of a guide mechanism for a waterjet cutting head according to the present invention;
[0016] Figure 2 This is a schematic diagram of the displacement device structure of a guide mechanism for a waterjet cutting head according to the present invention;
[0017] Figure 3 This is a side view of the main structure of the guide mechanism for a waterjet cutting head according to the present invention.
[0018] Figure 4 This is a schematic diagram of the main structure of a guide mechanism for a waterjet cutting head according to this utility model.
[0019] In the diagram: 1. Guide frame; 2. Mounting base; 3. Displacement device; 4. Main body; 31. Drive motor; 32. Long screw; 33. Displacement frame; 34. Power supply box; 35. Front frame; 36. Guide groove; 37. Upper plate; 41. Cylinder; 42. External connecting water pipe; 43. Fixing block; 44. Guide frame; 45. Negative pressure detector; 46. Connecting pipe; 47. Gun head body; 48. Fixing pipe; 49. Gun head main body equipment; 410. Side limiting block; 411. Ball bearing; 412. Water outlet. Detailed Implementation
[0020] 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.
[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] 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.
[0023] Please see Figure 1-4 This utility model provides a technical solution:
[0024] A waterjet cutting head guide mechanism includes a guide fixing frame 1, a mounting base 2 fixedly connected to the right end of the guide fixing frame 1, a displacement device 3 fixedly connected to the upper end of the mounting base 2, and a main body device 4 fixedly connected inside the displacement device 3.
[0025] In this embodiment, the displacement device 3 includes a drive motor 31. The output end of the drive motor 31 passes through the guide fixing frame 1 and is fixedly connected to a long screw 32. The outer surface of the long screw 32 is movably connected to a displacement frame 33. The middle of the right end of the displacement frame 33 is fixedly connected to a power supply box 34. The front end of the displacement frame 33 is fixedly connected to a front frame 35. The upper end of the front frame 35 is fixedly connected to an upper plate 37. The front of the left and right frames of the front frame 35 are both provided with guide grooves 36. The drive motor 31 is fixedly connected to the right end of the guide fixing frame 1. The power cord of the drive motor 31 is connected to the power supply box 34. The power supply box 34 supplies power to the drive motor 31. The left end of the long screw 32 is movably connected to the left frame wall of the guide fixing frame 1 through a bearing. The axis of the bearing coincides with the axis of the long screw 32. When the drive motor 31 drives the long screw 32 to rotate, the displacement frame 33 slides linearly left and right along the length direction of the guide fixing frame 1.
[0026] Through the above scheme: When the displacement device 3 of the waterjet cutting head guide mechanism is working, the drive motor 31 starts after being powered by the power supply box 34. Its output end drives the long screw 32 to rotate. The left end of the long screw 32 is movably connected to the left frame wall of the guide fixing frame 1 through a bearing, so that the displacement frame 33 slides linearly left and right along the length direction of the guide fixing frame 1 when the long screw 32 rotates, thereby driving the front frame 35, upper plate 37 and other components on the displacement frame 33 to move. Through the cooperation of the drive motor 31 and the long screw 32, the linear sliding of the displacement frame 33 can be precisely controlled, thereby realizing the precise adjustment of the position of the waterjet cutting head. The power supply box 34 is fixed on the displacement frame 33 and can move synchronously with the displacement frame 33, avoiding the pulling of the power cord during the operation of the equipment, improving the stability and safety of the equipment operation. At the same time, the left end of the long screw 32 is movably connected to the guide fixing frame 1 through the bearing, ensuring the stability of the rotation of the long screw 32.
[0027] In this embodiment, the main device 4 includes a cylinder 41. The output end of the cylinder 41 passes through the upper plate 37 and is fixedly connected to a fixing block 43. A guide frame 44 is fixedly connected to the front end of the fixing block 43. A negative pressure detector 45 is provided at the front end of the guide frame 44. A connecting pipe 46 is provided at the front end of the negative pressure detector 45, and a gun head body 47 is fixedly connected to the other end of the connecting pipe 46. A fixing pipe 48 is fixedly connected to the upper end of the gun head body 47. A gun head main body device 49 is fixedly connected to the upper end of the fixing pipe 48. Side limiting blocks 410 are fixedly connected to both the left and right ends of the guide frame 44. The limiting block 410 is provided with multiple balls 411. The lower middle part of the nozzle body 47 is fixedly connected to the water outlet 412. The upper left part of the nozzle body 49 is fixedly connected to the external water pipe 42. The cylinder 41 is fixedly connected to the upper middle part of the upper plate 37. The side limiting block 410 is a cuboid block structure. Multiple balls 411 are evenly distributed in the side limiting block 410, and the balls 411 protrude from the surface of the side limiting block 410. The two side limiting blocks 410 are slidably connected in the guide groove 36. The nozzle body 49 and the guide frame 44 are fixedly connected by welding.
[0028] Through the above scheme: When the main device 4 of the waterjet cutting head guide mechanism is working, the cylinder 41 fixed in the middle of the upper end of the upper plate 37 is started. Its output end passes through the upper plate 37 and drives the fixed block 43 to move, which in turn drives the guide frame 44 to move. Multiple balls 411 evenly distributed in the side limiting blocks 410 at the left and right ends of the guide frame 44 protrude from the surface of the side limiting blocks 410. The two side limiting blocks 410 are slidably connected in the guide groove 36. The rolling of the balls 411 can reduce friction and ensure the stability and smoothness of the movement of the guide frame 44. The guide frame 44 drives the negative pressure detector 45, the connecting pipe 46, the gun head body 47 and other components at the front end to move. The external water pipe 42 delivers water to the main device 49 of the gun head, and then through the fixed... Pipe 48 and connecting pipe 46 spray water from the outlet 412 at the lower middle of the nozzle body 47 for cutting. The negative pressure detector 45 can detect the negative pressure in the cutting area in real time to ensure the stability of the cutting process. This scheme drives the guide frame 44 to move through the cylinder 41, which can realize the precise adjustment of the vertical position of the nozzle body 47. The side limit block 410 cooperates with the guide groove 36 and reduces friction through the ball bearing 411, which improves the smoothness and reliability of the guide frame 44 movement. The negative pressure detector 45 can monitor the cutting environment in real time to ensure the cutting quality. The welded and fixed nozzle body equipment 49 is firmly connected to the guide frame 44 to ensure the stability of the structure during equipment operation, so that the waterjet cutting head can be accurately positioned and operate stably during operation.
[0029] It should be noted that this utility model is a guide mechanism for a waterjet cutting head. When the guide mechanism for the waterjet cutting head is working, the drive motor 31 starts after being powered by the power supply box 34. Its output end drives the long screw 32 to rotate. The left end of the long screw 32 is movably connected to the left frame wall of the guide fixing frame 1 through a bearing, so that the displacement frame 33 slides linearly left and right along the length direction of the guide fixing frame 1 when the long screw 32 rotates, thereby driving the front frame 35, upper plate 37 and other components on the displacement frame 33 to move. At the same time, the cylinder 41 fixed in the middle of the upper end of the upper plate 37 is started. Its output end passes through the upper plate 37 and drives the fixing block 43 to move, thereby driving the guide. As the guide frame 44 moves, the ball bearings 411 in the side limiting blocks 410 at the left and right ends of the guide frame 44 protrude from the surface of the side limiting blocks 410. The two side limiting blocks 410 are slidably connected in the guide groove 36 to ensure the stability of the guide frame 44's movement. The guide frame 44 drives the negative pressure detector 45, connecting pipe 46, gun head body 47 and other components at the front end to move. The external water pipe 42 delivers water to the main body of the gun head 49, and then sprays it out from the water outlet 412 at the lower middle of the gun head body 47 through the fixed pipe 48 and connecting pipe 46 for cutting. The guide and position adjustment of the water cutting head are achieved through the cooperation of the displacement device 3 and the main body device 4.
[0030] 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 illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A guide mechanism for a waterjet cutting head, comprising a guide fixing frame (1), characterized in that: The right end of the guide fixing frame (1) is fixedly connected to the mounting base (2), the upper end of the mounting base (2) is fixedly connected to the displacement device (3), and the main body device (4) is fixedly connected inside the displacement device (3). The displacement device (3) includes a drive motor (31). The output end of the drive motor (31) passes through the guide fixing frame (1) and is fixedly connected to a long screw (32). The outer surface of the long screw (32) is movably connected to a displacement frame (33). The middle of the right end of the displacement frame (33) is fixedly connected to a power supply box (34). The front end of the displacement frame (33) is fixedly connected to a front frame (35). The upper end of the front frame (35) is fixedly connected to an upper plate (37). The front part of the left frame wall and the front part of the right frame wall of the front frame (35) are both provided with guide grooves (36). The drive motor (31) is fixedly connected to the right end of the guide fixing frame (1).
2. The guide mechanism for a waterjet cutting head according to claim 1, characterized in that: The main device (4) includes a cylinder (41). The output end of the cylinder (41) passes through the upper plate (37) and is fixedly connected to a fixing block (43). A guide frame (44) is fixedly connected to the front end of the fixing block (43). A negative pressure detector (45) is provided at the front end of the guide frame (44). A connecting pipe (46) is provided at the front end of the negative pressure detector (45). A gun head body (47) is fixedly connected to the other end of the connecting pipe (46). A fixing pipe is fixedly connected to the upper end of the gun head body (47). (48) The upper end of the fixed tube (48) is fixedly connected to the main body of the gun head (49). The left and right ends of the guide frame (44) are both fixedly connected to the side limiting block (410). The side limiting block (410) is provided with multiple balls (411). The lower middle part of the gun head body (47) is fixedly connected to the water outlet (412). The upper left part of the main body of the gun head (49) is fixedly connected to the external connecting water pipe (42). The cylinder (41) is fixedly connected to the upper middle part of the upper plate (37).
3. The guide mechanism for a waterjet cutting head according to claim 2, characterized in that: The side limiting block (410) is a cuboid block structure, and a plurality of the balls (411) are evenly distributed in the side limiting block (410), with the balls (411) partially protruding from the surface of the side limiting block (410).
4. The guide mechanism for a waterjet cutting head according to claim 1, characterized in that: The power cord of the drive motor (31) is connected to the power supply box (34), which supplies power to the drive motor (31).
5. A guide mechanism for a waterjet cutting head according to claim 1, characterized in that: The left end of the long screw (32) is movably connected to the left wall of the guide fixing frame (1) through a bearing. The axis of the bearing coincides with the axis of the long screw (32). When the drive motor (31) drives the long screw (32) to rotate, the displacement frame (33) slides left and right in a straight line along the length direction of the guide fixing frame (1).
6. A guide mechanism for a waterjet cutting head according to claim 2, characterized in that: The two side limiting blocks (410) are slidably connected in the guide groove (36) respectively, and the gun head main body device (49) and the guide frame (44) are fixedly connected by welding.