A precision part surface grinding machine facilitating chip removal

Abstract

The application discloses a precision part surface grinding machine facilitating chip removal, which comprises a workbench, an internal cavity of the workbench, a surface grinding mechanism arranged outside the workbench, a fixing mechanism arranged on the top of the workbench, a chip removal mechanism comprising a dust extraction assembly and a chip removal assembly, the dust extraction assembly being communicated with the internal cavity of the workbench, and the chip removal assembly being arranged in the internal cavity of the workbench. The precision part surface grinding machine facilitating chip removal is provided with a composite chip removal structure combining the dust extraction assembly and the chip removal assembly, and realizes automatic processing of the whole process from chip generation to collection and discharge. The dust extraction fan forms a negative pressure environment in the internal cavity of the workbench, directional airflow is generated in the grinding area through an air inlet, fine dust and metal chips generated in the grinding instant can be sucked in time, and dust is effectively prevented from escaping into external air.

Description

Technical Field

[0001] This invention relates to the field of machining technology, and in particular to a precision parts grinding machine that facilitates chip removal. Background Technology

[0002] Grinding machines are widely used in the surface grinding, surface finishing, and material removal processes of various precision parts. With the increasing demands of modern industry for precision, surface quality, and production efficiency, the structural design and functional integration of grinding machines face even greater technical challenges. Especially in the production of key components such as gearboxes, hydraulic components, and precision molds, grinding not only requires ensuring dimensional accuracy and surface roughness but also demands high stability and reliability to guarantee subsequent assembly and performance.

[0003] Existing precision parts grinding equipment typically uses the relative motion between a grinding wheel and the workpiece to remove material. Its basic structure generally includes a machine bed, a workpiece clamping mechanism, a grinding head feed mechanism, and an electrical control system. During actual processing, the high-speed friction between the grinding wheel and the workpiece surface generates a large amount of heat and metal shavings. If these shavings are not effectively removed in time, they will accumulate in the grinding area. This accumulation not only scratches the machined surface, leading to a decrease in surface quality, but also embeds hard particles between the grinding wheel and the workpiece, accelerating wheel wear and affecting grinding accuracy and efficiency. More seriously, the fine metal dust suspended in the air poses a potential threat to the respiratory health of operators, and long-term accumulation can lead to workshop environmental pollution, increasing the difficulty and workload of equipment cleaning and maintenance.

[0004] Therefore, it is necessary to provide a new precision parts grinding machine that facilitates chip removal to solve the above-mentioned technical problems. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides a precision parts grinding machine that facilitates chip removal.

[0006] This invention provides a precision parts grinding machine that facilitates chip removal, comprising: A worktable having an internal cavity; The grinding mechanism is located on the outside of the worktable; A fixing mechanism is provided on the top of the workbench; The chip removal mechanism includes a dust extraction component and a chip removal component; the dust extraction component is connected to the internal cavity of the workbench; the chip removal component is disposed in the internal cavity of the workbench.

[0007] Preferably, the dust extraction assembly includes: An air inlet is located at the top of the workbench; A dust extraction fan is installed on the workbench, and its air inlet is connected to the internal cavity of the workbench. A filter screen is installed in the internal cavity of the workbench and is located on the airflow path between the air inlet of the dust extraction fan and the air inlet.

[0008] Preferably, the chip removal assembly includes: The feed cylinder is vertically arranged in the internal cavity of the workbench and located below the air inlet; A rotating shaft is rotatably disposed inside the feed cylinder; The spiral blades are fixedly mounted on the rotating shaft, and their outer edges abut against the inner wall of the feed cylinder. The fourth motor is fixedly mounted on the workbench, and its output shaft is driven by the rotating shaft.

[0009] Preferably, the fixing mechanism includes: A mounting bracket is installed on top of the workbench; Two fixing components are symmetrically arranged on the fixing frame, each fixing component comprising: The cylinder is fixedly mounted on the mounting bracket; The clamping plate is fixedly connected to the piston rod of the cylinder; The second guide rod has one end fixedly connected to the clamping plate and the second guide rod slidably connected to the fixing frame.

[0010] Preferably, the grinding mechanism includes: A transverse drive assembly is disposed on the outer surface of the worktable; A vertical drive component is disposed on the horizontal drive component; A grinding assembly is mounted on the vertical drive assembly.

[0011] Preferably, the lateral drive component includes: The first motor is fixedly installed on the outer side of the workbench; The first lead screw is driven and connected to the output shaft of the first motor; At least one first guide rod is arranged parallel to the first lead screw; The mounting bracket is threadedly connected to the first lead screw and slidably connected to the first guide rod.

[0012] Preferably, the vertical drive component includes: The second motor is fixedly mounted on the mounting bracket; The second lead screw is driven and connected to the output shaft of the second motor; The slider is threadedly connected to the second lead screw and slidably connected to a groove provided on the mounting bracket, and the grinding assembly is fixedly mounted on the slider.

[0013] Preferably, the grinding assembly includes: The third motor is fixedly mounted on the slider; The grinding wheel is fixedly mounted on the output shaft of the third motor.

[0014] Preferably, it also includes two symmetrically arranged gates, which are slidably disposed on the top of the workbench and located on both sides of the fixing mechanism, and the gates are provided with handles.

[0015] Preferably, the outer side of the workbench is hinged with a door for cleaning the internal cavity.

[0016] Compared with related technologies, the precision parts grinding machine with easy chip removal provided by the present invention has the following beneficial effects: This invention provides a precision parts grinding machine with convenient chip removal. It adopts a composite chip removal structure combining a dust extraction component and a chip removal component, realizing fully automated processing from chip generation to collection and discharge. The dust extraction fan creates a negative pressure environment in the cavity inside the worktable, and generates directional airflow in the grinding area through the air inlet. It can instantly suck in the fine dust and metal chips generated during grinding, effectively preventing dust from escaping into the outside air. The sucked-in chips fall into the feed cylinder under gravity, and are then forcibly pushed downwards and discharged by the spiral blades. The tight fit between the spiral blades and the inner wall of the feed cylinder ensures the continuity and reliability of the conveying process. Even for sticky or flocculent chips, no clogging will occur, completely changing the limitations of traditional passive chip removal relying on gravity. The filter screen effectively protects the dust extraction fan from the impact damage of large particles of chips, extending the service life of the equipment.

[0017] This invention achieves precise feed control of the grinding head in both horizontal and vertical directions through the coordinated operation of the horizontal and vertical drive components. A first motor drives a first lead screw, causing the mounting bracket to move smoothly along a first guide rod. A second motor drives a second lead screw, causing the slider to slide up and down along a groove. The lead screw transmission method features high transmission accuracy and smooth movement. Combined with the guiding effect of the guide rod, it effectively suppresses vibration and yaw during the grinding head's movement, thus ensuring the flatness and dimensional accuracy of the ground surface. The grinding wheel is independently driven by a third motor, with adjustable speed to adapt to the processing needs of parts made of different materials. The workpiece fixing mechanism uses symmetrically arranged cylinder-driven clamping plates. The synchronous action of the two cylinders ensures a uniform distribution of clamping force, preventing workpiece displacement or deformation during clamping. The guiding effect of the second guide rod ensures the smoothness of the clamping plate movement and repeatability, laying a reliable foundation for precision machining.

[0018] This invention simplifies and automates the processing flow through a multi-mechanism collaborative design. The fixing mechanism uses pneumatic clamping to replace traditional manual operation, making workpiece loading and unloading quick and labor-saving. The clamping force can be adjusted by air pressure to adapt to the clamping needs of different sized parts. The sliding design of the gate allows operators to easily open and close the processing area, ensuring airtightness during grinding without hindering workpiece loading and unloading. The entire chip removal process requires no manual intervention. The dust extraction fan and chip removal motor can start and stop synchronously with the grinding head motor, completing chip removal while processing is in progress. This eliminates downtime caused by chip removal issues and significantly improves processing continuity. For processing parts of different sizes, precise tool setting of the grinding head can be achieved simply by adjusting the operating parameters of the drive motor through the control system, without the need for complex mechanical adjustments, greatly shortening the processing preparation time.

[0019] This invention creates a clean and safe working environment through multiple layers of protection. The semi-enclosed space formed after the door is closed effectively blocks the splashing of debris. Combined with the negative pressure airflow generated by the dust extraction component, the grinding area is always in a slightly negative pressure state, preventing dust leakage. The workbench, as a box-type structure, has an internal cavity that serves as both a chip removal channel and a collection container. Its compact structure and good sealing performance prevent secondary diffusion of debris inside the equipment. The door allows operators to easily open the workbench for internal cleaning and maintenance. The filter can be removed for cleaning or replacement regularly to ensure long-term stable dust extraction performance. In addition, the layout of each component fully considers space utilization and ergonomic principles. The control panel is centrally located, and the handles, knobs, and other control components are reasonably positioned, reducing the labor intensity of operators and improving the comfort and safety of use. Attached Figure Description

[0020] Figure 1 Schematic diagram of the three-dimensional structure of a precision parts grinding machine for easy chip removal provided by the present invention. Figure 1 ; Figure 2 Schematic diagram of the three-dimensional structure of a precision parts grinding machine for easy chip removal provided by the present invention. Figure 2 ; Figure 3 A schematic diagram of the fixing mechanism provided by the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of the workbench provided by the present invention; Figure 5 This is a schematic diagram of the vertical drive assembly and grinding assembly provided by the present invention.

[0021] Labels in the diagram: 1. Workbench; 2. Grinding mechanism; 3. Chip removal mechanism; 4. Fixing mechanism; 5. Horizontal drive assembly; 6. Vertical drive assembly; 7. Grinding assembly; 8. Dust extraction assembly; 9. Chip removal assembly; 10. Fixing frame; 11. Fixing assembly; 12. First motor; 13. First lead screw; 14. First guide rod; 15. Mounting frame; 16. Second motor; 17. Second lead screw; 18. Slider; 19. Slide groove; 20. Third motor; 21. Grinding wheel; 22. Cylinder; 23. Second guide rod; 24. Clamping plate; 25. Dust extraction fan; 26. Filter screen; 27. Air inlet; 28. Box door; 29. ​​Fourth motor; 30. Feed cylinder; 31. Rotating shaft; 32. Spiral blade; 33. Baffle; 34. Handle. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] In the specific implementation process, such as Figures 1-5 As shown, a precision parts grinding machine that facilitates chip removal includes a worktable 1, which has a box-like structure and a closed internal cavity inside, which serves as a space for collecting and temporarily storing chips.

[0024] The top of the workbench 1 is provided with a fixing mechanism 4 for fixing the precision parts to be processed. The fixing mechanism 4 includes a fixing frame 10, which is fixed to the top surface of the workbench 1. Two fixing components 11 are symmetrically arranged on the fixing frame 10. Each fixing component 11 includes a cylinder 22, a clamping plate 24 and a second guide rod 23. The cylinder 22 is fixedly installed on the side wall of the fixing frame 10, and its piston rod extends horizontally and is fixedly connected to the clamping plate 24. The second guide rod 23 is fixedly connected to the clamping plate 24. The second guide rod 23 is arranged parallel to the piston rod of the cylinder 22, and its rod body passes through a pre-set guide hole on the fixing frame 10 to form a sliding fit with the fixing frame 10. During operation, the two cylinders 22 are driven synchronously, which drives the two clamping plates 24 to move towards or away from each other, thereby reliably clamping or releasing the parts placed between them.

[0025] A grinding mechanism 2 is provided on the outer side of the worktable 1 for grinding parts fixed on the fixing mechanism 4. The grinding mechanism 2 includes a horizontal drive assembly 5, a vertical drive assembly 6, and a grinding assembly 7. The horizontal drive assembly 5 is installed at the bottom of the outer side of the worktable 1 and includes a first motor 12, a first lead screw 13, two first guide rods 14, and a mounting bracket 15. The first motor 12 is fixed on the worktable 1, and its output shaft is driven to the first lead screw 13 to drive the first lead screw 13 to rotate. The two first guide rods 14 are arranged parallel to the first lead screw 13 and fixed on the worktable 1. The mounting bracket 15 is provided with threaded holes that cooperate with the first lead screw 13 and sliding holes that cooperate with the first guide rods 14. When the first motor 12 works, the rotational motion of the first lead screw 13 is converted into the linear motion of the mounting bracket 15, and the mounting bracket 15 moves horizontally along the first guide rods 14.

[0026] A vertical drive assembly 6 is provided on the mounting bracket 15. The drive assembly 6 includes a second motor 16, a second lead screw 17, and a slider 18. A vertical groove 19 is provided on the side of the mounting bracket 15. The slider 18 is accommodated in the groove 19 and can slide up and down along it. The second motor 16 is fixedly installed at the bottom of the groove 19, and its output shaft is drivenly connected to the second lead screw 17. The second lead screw 17 is vertically arranged and passes through the slider 18 and is threadedly connected to it. When the second motor 16 is working, the second lead screw 17 drives the slider 18 to move vertically along the groove 19.

[0027] The grinding assembly 7 is mounted on the slider 18 and moves together with the slider 18. The grinding assembly 7 includes a third motor 20 and a grinding wheel 21. The third motor 20 is fixedly mounted on the slider 18, and its output shaft extends horizontally. The grinding wheel 21 is fixedly mounted at the end of the output shaft. The third motor 20 drives the grinding wheel 21 to rotate at high speed to grind the parts. The horizontal drive assembly 5 and the vertical drive assembly 6 can control the precise feed of the grinding wheel 21 in both horizontal and vertical directions.

[0028] The chip removal mechanism 3 includes a dust extraction component 8 and a chip removal component 9. The dust extraction component 8 is used to generate negative pressure at the top of the workbench 1 to suck the grinding chips and dust into the workbench 1. An air inlet 27 is provided on the top surface of the workbench 1. A dust extraction fan 25 is installed on the bottom of the outer side of the workbench 1. The air inlet of the dust extraction fan 25 is connected to the internal cavity of the workbench 1. When the dust extraction fan 25 is started, a negative pressure is formed in the internal cavity of the workbench 1, thereby generating a strong downward airflow at the air inlet 27, which sucks the grinding chips along with the air into the internal cavity of the workbench 1. In the internal cavity of the workbench 1, a filter screen 26 is provided on the airflow path between the air inlet of the dust extraction fan 25 and the air inlet 27. The filter screen 26 is used to block the chips and prevent them from entering the dust extraction fan 25 and causing damage. At the same time, clean air is discharged through the dust extraction fan 25.

[0029] The chip removal assembly 9 consists of a feed cylinder 30, a rotating shaft 31, a spiral blade 32, and a fourth motor 29. The feed cylinder 30 is a vertically arranged cylindrical structure with its top opening located directly below the air inlet 27 to receive the chips falling from the air inlet 27. The rotating shaft 31 is rotatably mounted on the central axis of the feed cylinder 30, and the spiral blade 32 is fixedly wound around the rotating shaft 31. The outer edge of the spiral blade 32 forms a mating fit with the inner wall of the feed cylinder 30. The fourth motor 29 is fixedly mounted at the bottom of the internal cavity of the workbench 1, and its output shaft extends upward and is drivenly connected to the lower end of the rotating shaft 31. When the fourth motor 29 is started, it drives the rotating shaft 31 and the spiral blade 32 to rotate. The rotating spiral blade 32 forces the chips falling into the feed cylinder 30 downward and finally discharges them from the outlet at the bottom of the feed cylinder 30.

[0030] The top of the workbench 1 is also equipped with two symmetrical gates 33. The gates 33 are located on both sides of the fixing mechanism 4 and are slidably connected to the slide rails on the top surface of the workbench 1. During operation, the two gates 33 can be pushed together to form a semi-enclosed processing space to prevent grinding chips from flying everywhere. The gates 33 are also equipped with handles 34 for easy operation.

[0031] The outer side of the workbench 1 is also hinged with a door 28. Opening the door 28 allows direct access to the internal cavity. The working principle of the specific embodiment of the present invention is as follows: First, pull the handle 34 to open the stop door 33, place the precision part to be processed between the two clamping plates 24, start the cylinder 22 to drive the two clamping plates 24 to move towards each other, clamp and fix the part, then close the stop door 33, start the third motor 20 to drive the grinding wheel 21 to rotate at high speed, according to the preset processing program, start the first motor 12 and the second motor 16 to drive the grinding assembly 7 to move in the horizontal and vertical directions respectively, to perform precise grinding on the part. During the entire grinding process, the dust extraction fan 25 and the fourth motor 29 are started simultaneously. The dust extraction fan 25 generates negative pressure at the top of the worktable 1, and sucks the grinding debris into the worktable 1 through the air inlet 27. The debris falls into the feed cylinder 30. The fourth motor 29 drives the spiral blades 32 to rotate, continuously conveying the debris in the feed cylinder 30 downward.

[0032] All standard parts used in this invention can be purchased from the market. Each component in this invention can be customized according to the description and drawings. The specific connection methods of each component adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming, which is common knowledge in the field. Furthermore, since this invention is mainly used to protect mechanical devices, this application document will not explain the control method and circuit connection in detail, and will not be described in detail here.

[0033] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A precision parts grinding machine that facilitates chip removal, characterized in that, include: A workbench (1) having an internal cavity; The grinding mechanism (2) is located on the outside of the worktable (1); A fixing mechanism (4) is provided on the top of the workbench (1); The chip removal mechanism (3) includes a dust extraction component (8) and a chip removal component (9); the dust extraction component (8) is connected to the internal cavity of the workbench (1); the chip removal component (9) is disposed in the internal cavity of the workbench (1).

2. The precision parts grinding machine with easy chip removal according to claim 1, characterized in that, The dust extraction assembly (8) includes: An air inlet (27) is located on the top of the workbench (1); A dust extraction fan (25) is installed on the workbench (1), and its air inlet is connected to the internal cavity of the workbench (1); The filter screen (26) is disposed in the internal cavity of the workbench (1) and is located on the airflow path between the air inlet of the dust extraction fan (25) and the air inlet (27).

3. The precision parts grinding machine with easy chip removal according to claim 2, characterized in that, The chip removal assembly (9) includes: The feed cylinder (30) is vertically arranged in the internal cavity of the workbench (1) and located below the air inlet (27); A rotating shaft (31) is rotatably disposed inside the feed cylinder (30); The spiral blade (32) is fixedly mounted on the rotating shaft (31), and its outer edge abuts against the inner wall of the feed cylinder (30); The fourth motor (29) is fixedly mounted on the worktable (1), and its output shaft is driven to be connected to the rotating shaft (31).

4. The precision parts grinding machine with easy chip removal according to claim 1, characterized in that, The fixing mechanism (4) includes: A fixed frame (10) is mounted on top of the workbench (1); Two fixing components (11) are symmetrically arranged on the fixing frame (10), and each fixing component (11) includes: The cylinder (22) is fixedly mounted on the fixed frame (10); The clamping plate (24) is fixedly connected to the piston rod of the cylinder (22); The second guide rod (23) is fixedly connected at one end to the clamp (24), and the second guide rod (23) is slidably connected to the fixing frame (10).

5. The precision parts grinding machine with easy chip removal according to claim 1, characterized in that, The grinding mechanism (2) includes: A transverse drive assembly (5) is disposed on the outer side of the worktable (1); A vertical drive component (6) is disposed on the horizontal drive component (5); The grinding assembly (7) is mounted on the vertical drive assembly (6).

6. The precision parts grinding machine with easy chip removal according to claim 5, characterized in that, The lateral drive component (5) includes: The first motor (12) is fixedly installed on the outer side of the workbench (1); The first lead screw (13) is driven to the output shaft of the first motor (12); At least one first guide rod (14) is arranged parallel to the first lead screw (13); The mounting bracket (15) is threadedly connected to the first lead screw (13) and slidably connected to the first guide rod (14).

7. The precision parts grinding machine with easy chip removal according to claim 6, characterized in that, The vertical drive component (6) includes: The second motor (16) is fixedly mounted on the mounting bracket (15); The second lead screw (17) is driven by the output shaft of the second motor (16); The slider (18) is threadedly connected to the second lead screw (17) and slidably connected to the groove (19) provided on the mounting bracket (15). The grinding assembly (7) is fixedly installed on the slider (18).

8. The precision parts grinding machine with easy chip removal according to claim 7, characterized in that, The grinding assembly (7) includes: The third motor (20) is fixedly mounted on the slider (18); The grinding wheel (21) is fixedly mounted on the output shaft of the third motor (20).

9. The precision parts grinding machine with easy chip removal according to claim 1, characterized in that, It also includes two symmetrically arranged gates (33), which are slidably arranged on the top of the workbench (1) and located on both sides of the fixing mechanism (4), and are provided with handles (34) on the gates (33).

10. The precision parts grinding machine with easy chip removal according to claim 1, characterized in that, The outer side of the workbench (1) is hinged with a box door (28) for cleaning the internal cavity.

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