Pressure regulating grinding head and grinding equipment

Abstract

The utility model discloses a pressure-regulating grinding head and grinding equipment. The pressure-regulating grinding head comprises a grinding tool, a power assembly and a pressurizing assembly, the grinding tool makes contact with a to-be-machined workpiece, the power assembly drives the grinding tool to a preset station, and the pressurizing assembly adjusts the pressure between the grinding tool and the to-be-machined workpiece and is arranged in the power assembly. The pressurizing pipeline is arranged in the grinding head, so that extra space occupied by an external pipeline is eliminated, the whole grinding device is more compact, and assembling in a limited space is facilitated. And due to the design of the built-in pipeline, the grinding head is not limited and hindered by an external pipeline when moving and overturning, and the flexibility and the operation efficiency of the grinding tool are improved. The built-in pipeline and the grinding head move synchronously, so that pressure fluctuation caused by asynchronism of inertia force and a grinding tool is avoided. And in addition, the shape and angle change of the internal pipeline are effectively controlled, and the pressure fluctuation is further reduced, so that the stability of the pressure applied to the grinding tool is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding processing, in particular to a pressure-regulating grinding head and grinding equipment. Background Art

[0002] With the development of science and technology, especially the progress in aerospace industry, large-scale integrated circuits, laser technology and precision instrument manufacturing, the grinding accuracy of traditional grinding equipment and processes can no longer fully meet the current needs. In response to the increasing requirements for machining accuracy, ultra-precision grinding processes are increasingly widely used. Among them, the pressurizing device for grinding tools plays an important role. Pressurization helps to enhance the contact force between the tool and the workpiece, making the friction between the two more uniform, tight and effective.

[0003] Traditional mold pressurizing devices use either oil pressure or air pressure, and often require external pipes. The installation of these pipes is not conducive to saving assembly space. At the same time, it will form obstacles during the movement and flipping of the mold, affecting the efficiency and precision of the mold. The external pipe moves passively during the mold grinding process. Its inertial force is not synchronized with the mold, and the pipe shape and angle will undergo certain slight changes, which will cause slight fluctuations in the pressurized pressure, making the pressure applied to the mold lack stability, which has a certain impact on the accuracy in ultra-precision grinding scenarios. Utility Model Content

[0004] According to an embodiment of the utility model, in order to solve the above-mentioned deficiencies in the prior art, a pressure-adjustable grinding head is provided, comprising a grinding tool, a power component and a pressure-applying component; the grinding tool contacts with a workpiece to be processed and grinds the workpiece to be processed, the power component drives the grinding tool to a preset work position, the pressure-applying component adjusts the pressure between the grinding tool and the workpiece to be processed, and the pressure-applying component is built into the power component.

[0005] Preferably, the pressurizing component comprises a piston and at least one air channel, the piston is connected to the mold, the gas in the air channel drives the piston to move, and the piston drives the mold to move.

[0006] Preferably, the pressurizing assembly comprises a first air channel and a second air channel, the piston comprises a first cavity and a second cavity, the first air channel is connected to the first cavity, and the second air channel is connected to the second cavity.

[0007] Preferably, the piston comprises a central guide column, on which a partition is provided, the partition divides the first cavity and the second cavity, and the outside of the first cavity and the second cavity are sealed by a sleeve and two end covers.

[0008] Preferably, the first air duct and the second air duct are built into the central guide column along the extension direction of the central guide column, and the first air duct and the second air duct extend toward both sides of the partition respectively and in opposite directions.

[0009] Preferably, one end of the first air channel and the second air channel is arranged in the piston, and the other end is arranged at the end of the power component.

[0010] Preferably, a pressure detector is provided on one side of the air passage at the end of the power assembly.

[0011] Preferably, the grinding tool comprises an oilstone and an oilstone rack, the oilstone rack is connected to the piston, a guide column is arranged between the piston and the oilstone, and the piston drives the oilstone rack to move along the extension direction of the guide column.

[0012] Preferably, a distance sensor is provided on the grinding tool, and the distance sensor detects the distance between the grinding tool and the workpiece to be processed.

[0013] According to the pressure-regulating grinding head of the embodiment of the utility model, the pressurized pipeline is built into the grinding head, thereby eliminating the extra space occupied by the external pipeline, making the entire grinding device more compact, facilitating assembly in a limited space, and improving space utilization. The design of the built-in pipeline ensures that the grinding head is no longer constrained or hindered by the external pipeline when moving and flipping, thereby improving the flexibility and operating efficiency of the mold. The built-in pipeline moves synchronously with the grinding head, avoiding pressure fluctuations caused by the inertial force of the pipeline and the asynchronous movement of the mold. In addition, the shape and angle changes of the internal pipeline are also effectively controlled, further reducing the possibility of pressure fluctuations, thereby improving the stability of the pressure applied to the mold. In addition, the built-in pipeline reduces the number of parts and complexity of the external pipeline, reducing maintenance costs.

[0014] According to another embodiment of the utility model, a grinding device is provided, comprising a frame and the pressure-adjusting grinding head of the first embodiment, wherein the pressure-adjusting grinding head is arranged on the frame.

[0015] According to another embodiment of the present invention, the grinding device can provide a more stable pressure due to the built-in pipeline design, which helps to achieve higher precision requirements in ultra-fine grinding scenarios. Stable pressure means higher consistency in the grinding process and reduces grinding errors caused by pressure fluctuations.

[0016] It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the technology as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a pressure-adjusting grinding head according to the first embodiment of the utility model;

[0018] Figure 2 This is the internal structure of the pressure-adjusting grinding head according to the first embodiment of the utility model;

[0019] Figure 3It is a cross-sectional schematic diagram of a pressure-adjusting grinding head according to the first embodiment of the utility model;

[0020] Figure 4 It is a schematic side view of a pressure-adjusting grinding head according to the first embodiment of the utility model;

[0021] Figure 5 It is a schematic structural diagram of a grinding device according to the second embodiment of the utility model. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings to further illustrate the present invention.

[0023] First, combine Figures 1 to 4 The pressure-adjusting grinding head according to the embodiment of the utility model is widely used in scenes such as watches, clocks, and time display instruments with a reverse jump structure. In this embodiment, a dial structure with two minute hands is used as an example for explanation.

[0024] like Figures 1 to 4 As shown, the pressure-adjustable grinding head of the embodiment of the utility model comprises a grinding tool 1, a power component 2 and a pressure component 3.

[0025] Specifically, Figures 1 to 4 As shown, the grinding tool 1 is in contact with the workpiece 4 to be processed. Driven by the power component 2, the grinding tool 1 can reach the preset station accurately and quickly to ensure the consistency of the grinding operation with the processing technology requirements. At the same time, the built-in pressurizing component 3 is conducive to assembly in a limited space, which improves the space utilization rate, and at the same time more accurately adjusts the pressure between the grinding tool 1 and the workpiece, and flexibly adjusts it according to different grinding requirements, and maintains the stability of the pressure as much as possible to achieve the best grinding effect. This built-in pressurizing structure not only improves the compactness and work efficiency of the system through integrated design, but also reduces the complexity of operation and maintenance. Overall, this technical solution significantly improves the surface quality of the workpiece by accurately controlling the grinding process, meets diverse processing requirements, and brings significant technological progress and beneficial effects to the field of grinding processing.

[0026] Preferably, the pressurizing assembly 3 includes a piston 31 and at least one air channel 32. The piston 31, as a mechanical component, has high durability and stability. The piston 31 is connected to the mold 1. The gas in the air channel 32 can drive the piston 31 to move, and the piston 31 drives the mold 1 to move. The piston 31 is connected to the mold 1 so that the pressure of the gas in the air channel 32 can directly act on the piston 31, and then the mold 1 is driven to move through the movement of the piston 31. This direct drive method improves the response speed and power transmission efficiency of the system, ensures that the mold 1 can quickly and accurately reach the preset position and provide the required pressure, and the entire system is more compact and reliable.

[0027] Preferably, the pressurizing assembly 3 comprises a first air channel 321 and a second air channel 322, the piston 31 comprises a first cavity 311 and a second cavity 312, the first air channel 321 is connected to the first cavity 311, and the second air channel 322 is connected to the second cavity 312. By adjusting the pressure and flow of the gas in the dual air channels 32, pressure can be applied to the abrasive tool 1 in both directions, achieving faster and more precise adjustment to meet different grinding requirements. This flexible pressure adjustment capability helps to improve the grinding quality and avoid problems caused by overpressure or underpressure.

[0028] Preferably, the piston 31 includes a central guide column 313, the existence of which provides a stable guide for the movement of the piston 31, ensuring that the piston 31 has good linearity and stability when moving in the airway 32. This helps to reduce errors and wear caused by motion deviations, and improves the motion accuracy and reliability of the entire system. A partition 314 is provided on the central guide column 313, and the partition 314 divides the first cavity 311 and the second cavity 312, so that the two cavities can independently receive and discharge gas, thereby achieving precise control of the pressure on both sides of the piston 31. This design enables the pressurizing component 3 to more flexibly adjust the pressure on the mold 1 to adapt to changes in different grinding requirements. The outside of the first cavity 311 and the second cavity 312 are sealed by a sleeve 315 and two end covers 316, which effectively prevents gas leakage and the intrusion of external impurities.

[0029] Preferably, the first air channel 321 and the second air channel 322 are built into the central guide column 313 along the extension direction of the central guide column 313, which reduces the complexity and floor space of the system; the first air channel 321 and the second air channel 322 extend to the two sides of the partition 314 respectively, and in opposite directions. The external air channel 32 of the central guide column 313 can be arranged along the edge of the grinding head, arranged inside the bracket structure, or a closed channel can be set between the piston and the power assembly. It can be incompletely symmetrical, and it can also be called a central symmetrical solution; the air channel 32 is tightly combined with other parts of the piston 31 to form an integral structure. This integrated design enhances the structural strength and stability of the system and reduces the risk of damage or failure caused by external factors.

[0030] Preferably, one end of the first gas channel 321 and the second gas channel 322 is arranged in the piston 31, and the other end is arranged at the end of the power assembly 2, which is conducive to centralized management and control of gas flow. By arranging a gas control device or interface at the end of the power assembly 2, the flow, pressure and direction of the gas can be easily adjusted, thereby realizing precise control of the movement of the piston 31. This centralized management method improves the flexibility and adjustability of the system, so that the grinding process can be flexibly adjusted according to actual needs.

[0031] Preferably, a pressure detector is provided on one side of the air passage 32 located at the end of the power assembly 2, which can monitor the pressure in the air passage 32 in real time. Real-time monitoring of the pressure in the air passage 32 can ensure the pressure control accuracy during the grinding process. Through the pressure detector, the system can instantly obtain the pressure data in the air passage 32, and accurately adjust the flow and pressure of the gas accordingly. This precise control helps to avoid grinding problems caused by overpressure or underpressure, thereby improving the grinding quality and stability.

[0032] Preferably, the grinding tool 1 comprises an oilstone 11 and an oilstone rack 12. The oilstone rack 12 serves as a supporting structure of the oilstone 11 and can effectively fix the oilstone 11. The oilstone rack 12 is connected to the piston 31. A guide column is provided between the piston 31 and the oilstone 11. The piston 31 drives the oilstone rack 12 to move along the extension direction of the guide column. The provision of the guide column further enhances the stability and accuracy of the movement of the grinding tool 1. The guide column not only provides a clear direction of movement for the piston 31 and the oilstone rack 12, but also plays a role of guidance and restraint, thereby preventing the deviation or shaking of the grinding tool 1 during movement. This helps to ensure that the grinding tool 1 can move accurately according to the preset trajectory and parameters during the grinding process, thereby improving the accuracy and consistency of the grinding.

[0033] Preferably, a distance sensor is provided on the grinding tool 1, and the distance sensor detects the distance between the grinding tool 1 and the workpiece 4 to be processed. The distance sensor can detect the wear of the grinding tool 1. During the grinding process, the grinding tool 1 will gradually wear over time, which will affect its grinding effect and the quality of the workpiece. Through the distance sensor accurately measuring the distance between the grinding tool 1 and the workpiece, the system can timely detect the wear of the grinding tool 1 and replace or adjust the grinding tool 1 accordingly.

[0034] When in use, the power assembly 2 is activated to drive the mold 1 to move to the preset position. During this process, the mold 1 gradually approaches the workpiece 4 to be processed under the precise control of the power assembly 2 until it reaches the predetermined grinding position. Once the mold 1 reaches the preset position, the pressurizing assembly 3 begins to play its role. The pressurizing assembly 3 is built into the power assembly 2, and the precise adjustment of the pressure applied to the mold 1 is achieved through the piston 31 and the airway 32 structure inside it. The gas in the airway 32 drives the piston 31 to move, thereby driving the mold 1 connected to the piston 31 to move. By controlling the flow and pressure of the gas, the pressure between the mold 1 and the workpiece 4 to be processed can be accurately adjusted.

[0035] Above, refer to Figures 1 to 4A pressure-regulating grinding head according to an embodiment of the utility model is described. By integrating the pressurized pipe into the grinding head, the extra space occupied by the external pipe is eliminated, making the entire grinding device more compact, which is conducive to assembly in a limited space and improves space utilization. The design of the built-in pipe makes the grinding head no longer constrained and hindered by the external pipe when moving and flipping, thereby improving the flexibility and operating efficiency of the mold 1. The built-in pipe moves synchronously with the grinding head, avoiding pressure fluctuations caused by the inertial force of the pipe and the asynchronous movement of the mold 1. In addition, the shape and angle changes of the internal pipe are also effectively controlled, further reducing the possibility of pressure fluctuations, thereby improving the stability of the pressure applied to the mold 1. In addition, the built-in pipe reduces the number of parts and complexity of the external pipe, reducing maintenance costs.

[0036] It is worth noting that the design of this structure will increase the design and production costs of the entire grinding head to a certain extent, and has certain manufacturing difficulties. However, in view of the high standards for grinding accuracy in ultra-precision grinding scenarios, the structural layout and design of this technical solution are a practical and effective solution to improve the overall grinding accuracy.

[0037] Secondly, combine Figure 5 Description According to a second embodiment of the present invention, a grinding device is provided, which includes a frame and a pressure-adjusting grinding head according to the first embodiment, wherein the pressure-adjusting grinding head is arranged on the frame.

[0038] According to the grinding device of the second embodiment of the utility model, Figure 5 As shown in the figure, the built-in pipeline design can provide more stable pressure, which helps to achieve higher precision requirements in super-finishing scenarios. Stable pressure means higher consistency in the grinding process and reduces grinding errors caused by pressure fluctuations.

[0039] In the description of the present invention, it should be noted that, unless otherwise specified, “plurality” means two or more than two; the orientations or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “inside”, “outside”, “top”, and “bottom” are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] It should be noted that, in this specification, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0041] Although the content of the utility model has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the utility model. After reading the above content, various modifications and substitutions of the utility model will be obvious to those skilled in the art. Therefore, the protection scope of the utility model should be limited by the attached claims.

Claims

1. A pressure-regulated grinding head, characterized in that: Include: A grinding tool, the grinding tool is in contact with a workpiece to be processed and grinds the workpiece to be processed; A power assembly, the power assembly drives the mold to a preset position; A pressurizing component is used to adjust the pressure between the mold and the workpiece to be processed, and the pressurizing component is built inside the power component.

2. The pressure regulating grinding head according to claim 1, characterized in that: The pressurizing component comprises a piston and at least one air channel, wherein the piston is connected to the mold, and the gas in the air channel drives the piston to move, and the piston drives the mold to move.

3. The pressure regulating grinding head according to claim 2, characterized in that: The pressurizing assembly includes a first air channel and a second air channel, the piston includes a first cavity and a second cavity, the first air channel is connected to the first cavity, and the second air channel is connected to the second cavity.

4. The pressure-adjustable grinding head according to claim 3, characterized in that: The piston comprises a central guide column, on which a partition is arranged, and the partition divides the first cavity and the second cavity, and the outside of the first cavity and the second cavity are sealed by a sleeve and two end covers.

5. The pressure-adjustable grinding head according to claim 4, characterized in that: The first air duct and the second air duct are built into the central guide column along the extension direction of the central guide column, and the first air duct and the second air duct extend toward two sides of the partition respectively in opposite directions.

6. The pressure-adjustable grinding head according to claim 3, characterized in that: One end of the first air channel and the second air channel is arranged in the piston, and the other end is arranged at the end of the power component.

7. The pressure-adjustable grinding head according to claim 6, characterized in that: A pressure detector is provided on one side of the air passage at the end of the power assembly.

8. The pressure-adjustable grinding head according to claim 2, characterized in that: The grinding tool comprises an oilstone and an oilstone rack, wherein the oilstone rack is connected to the piston, a guide column is arranged between the piston and the oilstone, and the piston drives the oilstone rack to move along the extending direction of the guide column.

9. The pressure-adjustable grinding head according to claim 1, characterized in that: The grinding tool is provided with a distance sensor, and the distance sensor detects the distance between the grinding tool and the workpiece to be processed.

10. A grinding device, characterized in that: It comprises a frame and the pressure-adjusting grinding head according to any one of claims 1 to 9, wherein the pressure-adjusting grinding head is arranged on the frame.

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