Small-diameter chuck cutter handle suitable for micro machining

Abstract

The utility model relates to the technical field of micro machining, and discloses a small-diameter chuck cutter handle suitable for micro machining, which comprises a main shaft, the lower surface of the main shaft is fixedly connected with a connecting column, the lower surface of the connecting column is fixedly connected with a first connecting block, and the outer wall of the first connecting block is provided with a second connecting block. And a third connecting block is arranged on the outer wall of the second connecting block, a rotating shaft is fixedly connected to the inner wall of the third connecting block, a shell is fixedly connected to the outer wall of the rotating shaft, a mounting block is fixedly connected to the outer wall of the second connecting block, and a reset spring is arranged on the inner wall of the shell. The main shaft is pulled to drive the connecting column to move downwards, then the first connecting block is clamped into the second connecting block and the third connecting block due to the downward movement of the connecting column, then the second connecting block and the third connecting block deform to wrap and fix the first connecting block, and then the mounting block is pressed downwards along with the deformation of the second connecting block. Therefore, the effect that a user can conveniently replace parts and detect faults can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of micro-machining technology, and in particular to a small-diameter chuck tool holder suitable for micro-machining. Background Technology

[0002] Micromachining is a manufacturing technology used to manufacture tiny parts and structures, typically involving dimensional accuracy at the sub-millimeter or even micrometer level. In optical communication, it is necessary to manufacture tiny optical components. Through micromachining technology, high-precision optical components can be manufactured. This process often requires a chuck to hold the tool for micromachining.

[0003] Existing tool holders work by inserting the tool into the inner hole of the tool holder, then rotating the tool to screw it into the tool holder, and then starting the spindle for machining. However, existing tool holders are often fixed to the spindle and cannot be removed, making it difficult for users to disassemble parts to check for faults. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a small-diameter chuck tool holder suitable for micro-machining, aiming to improve the problem that users find it difficult to disassemble and install parts to check for faults because the existing tool holders are fixed to the spindle and cannot be removed.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A small-diameter chuck tool holder suitable for micro-machining includes a spindle, a connecting post fixedly connected to the lower surface of the spindle, a connecting block one fixedly connected to the lower surface of the connecting post, a connecting block two disposed on the outer wall of the connecting block one, a connecting block three disposed on the outer wall of the connecting block two, a rotating shaft fixedly connected to the inner wall of the connecting block three, a housing fixedly connected to the outer wall of the rotating shaft, a mounting block fixedly connected to the outer wall of the connecting block two, a return spring disposed on the inner wall of the housing, the inner wall of the mounting block being disposed on the outer wall of the return spring, and an engraving assembly disposed inside the housing for machining workpieces.

[0007] Preferably, the engraving assembly includes a processing blade, the outer wall of which is disposed inside the housing, and a limiting groove is formed inside the housing.

[0008] Preferably, the outer wall of the machining tool is disposed inside the limiting groove.

[0009] Preferably, the inner wall of the connecting block three is disposed on the outer wall of the connecting block one, and the inner wall of the connecting block two is fixedly connected to the outer wall of the rotating shaft.

[0010] Preferably, the outer shell includes a wear-resistant layer, the material of which is silicon nitride.

[0011] Preferably, a buffer layer is fixedly connected to the lower surface of the wear-resistant layer one, and the buffer layer is made of carbon fiber.

[0012] Preferably, a reinforcing layer is fixedly connected to the lower surface of the buffer layer, and the reinforcing layer is made of aluminum alloy.

[0013] Preferably, a second wear-resistant layer is fixedly connected to the lower surface of the reinforcing layer, and the material of the second wear-resistant layer is polyetheretherketone.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, by pulling the spindle to drive the connecting column downward, the first connecting block is then inserted into the second and third connecting blocks due to the downward movement of the connecting column. Then, the second and third connecting blocks deform to cover and fix the first connecting block. Subsequently, the mounting block is pressed down with the deformation of the second connecting block, and finally the machining tool is installed inside the housing to achieve the purpose of quick assembly of the spindle, housing and machining tool, thereby facilitating the user to replace parts and detect faults.

[0016] 2. In this utility model, by combining materials with different properties to form the outer shell, a wear-resistant layer one is installed on the surface of the outer shell, then a buffer layer is fixed on the surface of the wear-resistant layer one, and then a reinforcing layer is fixed on the surface of the buffer layer. Finally, a wear-resistant layer two is installed at the fitting point of the cutting head. The wear-resistant layer two is composed of polyetheretherketone, which can reduce the friction and wear between the cutting tool and the tool holder, and at the same time avoid the generation of static electricity, thereby achieving the effect of improving the applicability of the chuck tool holder to complex processing environments. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a small-diameter chuck tool holder suitable for micro-machining proposed in this utility model;

[0018] Figure 2 This is a cross-sectional schematic diagram of the internal structure of a small-diameter chuck tool holder suitable for micro-machining proposed in this utility model;

[0019] Figure 3 This is a partial structural diagram of the wear-resistant layer of a small-diameter chuck tool holder suitable for micro-machining proposed in this utility model.

[0020] Legend:

[0021] 1. Spindle; 2. Connecting column; 3. Connecting block one; 4. Connecting block two; 5. Connecting block three; 6. Mounting block; 7. Return spring; 8. Rotating shaft; 9. Housing; 10. Limiting groove; 11. Machining tool; 12. Wear-resistant layer one; 13. Buffer layer; 14. Reinforcing layer; 15. Wear-resistant layer two. Detailed Implementation

[0022] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Reference Figure 1 and Figure 2 The present invention provides an embodiment of a small-diameter chuck tool holder suitable for micro-machining, comprising a spindle 1, a connecting post 2 fixedly connected to the lower surface of the spindle 1, a connecting block 3 fixedly connected to the lower surface of the connecting post 2, a connecting block 4 provided on the outer wall of the connecting block 3, a connecting block 5 provided on the outer wall of the connecting block 4, a rotating shaft 8 fixedly connected to the inner wall of the connecting block 5, a housing 9 fixedly connected to the outer wall of the rotating shaft 8, a mounting block 6 fixedly connected to the outer wall of the connecting block 4, a return spring 7 provided on the inner wall of the housing 9, the inner wall of the mounting block 6 being disposed on the outer wall of the return spring 7, and an engraving assembly provided inside the housing 9 for processing workpieces;

[0024] Specifically, by pulling the main shaft 1, the connecting column 2 is driven to press down. Since the connecting column 2 is fixedly connected to the connecting block 3, the connecting block 3 is driven by the connecting column 2 and then inserted into the connecting block 4 and the connecting block 5. Then the openings of the connecting blocks 4 and 5 lock the connecting block 3 in place. Since the connecting block 4 is fixedly connected to the mounting block 6, the mounting block 6 is driven to press down. Since the mounting block 6 is fixedly connected to the return spring 7, the return spring 7 undergoes elastic deformation under the action of the mounting block 6. The rotating shaft 8 is used to limit the position of the connecting blocks 4 and 5 to prevent them from tilting.

[0025] Reference Figure 1 and Figure 2 The engraving assembly includes a processing blade 11, the outer wall of which is disposed inside the housing 9, and a limiting groove 10 is formed inside the housing 9; the outer wall of the processing blade 11 is disposed inside the limiting groove 10; the inner wall of the connecting block 3 5 is disposed on the outer wall of the connecting block 1 3, and the inner wall of the connecting block 2 4 is fixedly connected to the outer wall of the rotating shaft 8.

[0026] Specifically, the machining tool 11 is ultimately installed inside the housing 9 to achieve the purpose of quick assembly of the spindle 1, housing 9 and machining tool 11, thereby facilitating the user to replace parts and detect faults.

[0027] Reference Figure 3The outer shell 9 includes a wear-resistant layer 12, which is made of silicon nitride; a buffer layer 13 is fixedly connected to the lower surface of the wear-resistant layer 12, which is made of carbon fiber; a reinforcing layer 14 is fixedly connected to the lower surface of the buffer layer 13, which is made of aluminum alloy; and a wear-resistant layer 15 is fixedly connected to the lower surface of the reinforcing layer 14, which is made of polyetheretherketone.

[0028] Specifically, the outer shell 9 is constructed by combining multiple materials with different functions. A wear-resistant layer 12, composed of silicon nitride, is installed on the surface of the outer shell 9, making the outer shell 9 less susceptible to damage. A buffer layer 13, composed of carbon fiber, is then fixed on the surface of the wear-resistant layer 12, which effectively reduces the weight of the tool holder and improves machining flexibility and efficiency. A reinforcing layer 14, composed of aluminum alloy, is then fixed on the surface of the buffer layer 13, ensuring the overall structural strength and stability of the tool holder. Finally, a second wear-resistant layer 15, composed of polyetheretherketone, is installed at the point where it fits the tool head, which reduces friction and wear between the tool and the tool holder and prevents static electricity generation, thereby improving the applicability of the chuck tool holder to complex machining environments.

[0029] Working principle: When the chuck is needed, the spindle 1 is first pressed down, which drives the connecting column 2 to press down synchronously. Then, the connecting block 3 is driven by the connecting column 2 to enter between the connecting block 4 and the connecting block 5. At this time, the connecting blocks 4 and 5 open to fix the connecting block 3. At the same time, the mounting block 6 is pressed down by the connecting block 4. Then, the return spring 7 undergoes elastic deformation under the action of the mounting block 6. Then, the machining tool 11 is installed inside the housing 9 through the thread on the head. Finally, the spindle 1, housing 9 and machining tool 11 are quickly assembled, which can facilitate the user to replace parts and detect faults. The housing 9 is formed by stacking functional layers of different materials. The outermost layer of the housing 9 is the wear-resistant layer 12, which contains silicon nitride. Silicon nitride has extremely high hardness, wear resistance and high temperature resistance. The chemical stability of the outer shell 9 makes it difficult to damage. Then, a buffer layer 13 is installed on the outer wall of the wear-resistant layer 12. The buffer layer 13 contains carbon fiber, which has the advantages of high strength, low density, good shock absorption and fatigue resistance. It can effectively reduce the weight of the tool holder and improve the flexibility and efficiency of processing. Subsequently, a reinforcing layer 14 is installed on the outside of the buffer layer 13. The reinforcing layer 14 contains aluminum alloy, which has high strength and good processing performance. It can ensure the overall structural strength and stability of the tool holder. Finally, a second wear-resistant layer 15 is installed at the fitting point of the tool head. The second wear-resistant layer 15 contains polyetheretherketone (PEEK). PEEK has good self-lubricating properties, wear resistance and insulation. It can reduce friction and wear between the tool and the tool holder, and avoid static electricity. This can improve the applicability of the chuck tool holder to complex processing environments.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A small-diameter chuck tool holder suitable for micro-machining, comprising a spindle (1), characterized in that: A connecting column (2) is fixedly connected to the lower surface of the main shaft (1). A connecting block one (3) is fixedly connected to the lower surface of the connecting column (2). A connecting block two (4) is provided on the outer wall of the connecting block one (3). A connecting block three (5) is provided on the outer wall of the connecting block two (4). A rotating shaft (8) is fixedly connected to the inner wall of the connecting block three (5). A housing (9) is fixedly connected to the outer wall of the rotating shaft (8). An mounting block (6) is fixedly connected to the outer wall of the connecting block two (4). A return spring (7) is provided on the inner wall of the housing (9). The inner wall of the mounting block (6) is provided on the outer wall of the return spring (7). An engraving assembly is provided inside the housing (9). The engraving assembly is used to process workpieces.

2. The small-diameter chuck tool holder suitable for micro-machining according to claim 1, characterized in that: The engraving assembly includes a processing blade (11), the outer wall of which is disposed inside the outer shell (9), and a limiting groove (10) is formed inside the outer shell (9).

3. A small-diameter chuck tool holder suitable for micro-machining according to claim 2, characterized in that: The outer wall of the machining tool (11) is set inside the limiting groove (10).

4. A small-diameter chuck tool holder suitable for micro-machining according to claim 1, characterized in that: The inner wall of the connecting block three (5) is set on the outer wall of the connecting block one (3), and the inner wall of the connecting block two (4) is fixedly connected to the outer wall of the rotating shaft (8).

5. A small-diameter chuck tool holder suitable for micro-machining according to claim 1, characterized in that: The outer shell (9) includes a wear-resistant layer (12), which is made of silicon nitride.

6. A small-diameter chuck tool holder suitable for micro-machining according to claim 5, characterized in that: A buffer layer (13) is fixedly connected to the lower surface of the wear-resistant layer (12), and the material of the buffer layer (13) is carbon fiber.

7. A small-diameter chuck tool holder suitable for micro-machining according to claim 6, characterized in that: The lower surface of the buffer layer (13) is fixedly connected to a reinforcing layer (14), which is made of aluminum alloy.

8. A small-diameter chuck tool holder suitable for micro-machining according to claim 7, characterized in that: The lower surface of the reinforcing layer (14) is fixedly connected to a second wear-resistant layer (15), which is made of polyether ether ketone.

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