High-precision adjustable boring cutter clamp and boring cutter structure
By using adjustment blocks designed with left and right rotating threads and bevels on the boring tool clamp, high-precision fine-tuning of the boring tool clamp on the boring tool bar is achieved, which solves the problem that traditional boring tool clamps cannot achieve micron-level adjustment, improves processing accuracy and production efficiency, and ensures processing safety and stability.
Patent Information
- Application Number
- CN202422536066.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-10-21
AI Technical Summary
When the traditional boring tool clamp is adjusted radially and axially, the tool clamping tightening screws need to be loosened, which cannot achieve micron-level adjustments, and the small adjustment screws lead to complex operation.
The principle of left and right thread adjustment is adopted, and the boring tool clamp body is finely adjusted in the Y and X directions through angle adjustment blocks and double-headed screws. The large-size threads and bevel design are used to achieve high-precision control of the tool position. Combined with the firm installation of the boring tool clamp body and fasteners, it ensures adjustments in the locked state.
It realizes micron-level tool position adjustment, improves machining accuracy and production efficiency, ensures the safety and stability of processing, and meets the processing needs of high-precision workpieces.
Smart Images
Figure CN223222483U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of metal cutting processing, in particular to a high-precision adjustable boring tool clamp and a boring tool structure. Background Art
[0002] Traditional boring tool holders used for custom boring tools are designed and manufactured according to the ISO5611 standard. In these holders, radial (Y-direction) and axial (X-direction) adjustment of the boring bar is achieved through screws. Due to the holder's structure, the adjustment screws are very small, typically around M3-M4. Consequently, radial and axial adjustments require loosening the holder's screws, making micron-level adjustments impossible.
[0003] Therefore, the above problems need to be solved urgently. Utility Model Content
[0004] Purpose of the Utility Model: To overcome the above-mentioned shortcomings, the present utility model provides a high-precision adjustable boring tool holder. Utilizing the principle of left-handed and right-handed thread adjustment, the holder utilizes an angled adjustment block to achieve radial (Y-direction) and axial (X-direction) adjustment of the boring bar. The thread size used is large, typically M5, providing high adjustment force. This principle allows for direct adjustment of the boring tool holder's dimensions while it is locked. Clearance-free adjustment allows for micron-level adjustments. Furthermore, the large bearing area of the adjustment block allows for high cutting forces, ensuring stable operation of the boring tool holder. The holder is mounted on the boring bar and used in conjunction with the bar.
[0005] Technical Solution: The present invention provides a high-precision adjustable boring tool holder, comprising a tool holder body, a fastener, the tool holder body being mounted on a boring bar via the fastener; a blade, and a blade fastener, the blade being mounted on the edge of the tool holder body via the blade fastener; a first adjustment assembly, the first adjustment assembly being located on the side of the tool holder body away from the blade in the Y direction and abutting against the tool holder body, and regulating the movement of the tool holder body in the Y direction; and a second adjustment assembly being located on the side of the tool holder body away from the blade in the X direction and abutting against the tool holder body, and regulating the movement of the tool holder body in the X direction. Fine-tuning the tool holder body in the X and Y directions using the first and second adjustment assemblies, respectively, enables high-precision control of the tool position, thereby improving machining accuracy and meeting the machining requirements for workpieces requiring high dimensional accuracy. No complicated disassembly operation is required, and adjustments can be made with simple tools. No professional skills or complex equipment are required. The tool position can be quickly adjusted by using the left-right rotation adjustment principle, which saves adjustment time and improves production efficiency. The boring tool clamp body is firmly installed on the boring tool bar through fasteners. The first adjustment component and the second adjustment component also play a certain limiting role, ensuring that it will not loosen or fall off during the processing process, thereby improving the safety and reliability of the processing.
[0006] Furthermore, in the present application, a high-precision adjustable boring tool clamp, the first adjustment component includes a first adjustment block, the first adjustment block is provided with a first bevel, the first adjustment block is provided on the side of the boring tool clamp body away from the blade in the Y direction, and contacts the corresponding side surface of the boring tool clamp body through the first bevel. The design of the first bevel enables the first adjustment block to produce a large pushing effect through a small displacement during adjustment, thereby achieving precise fine-tuning of the boring tool clamp body in the Y direction. Its position in the Y direction can be precisely controlled to improve processing accuracy. The first adjustment block contacts the side surface of the boring tool clamp body through the first bevel, and the contact bearing area is large, which can withstand a large cutting force. The stability of the processing is guaranteed.
[0007] Furthermore, in the high-precision adjustable boring tool holder disclosed herein, the first adjustment assembly further includes a first stud screw, which includes a first threaded segment and a second threaded segment, the first and second threaded segments being arranged in opposite directions. The first stud screw is connected to the first adjustment block via the first threaded segment and to the boring bar via the second threaded segment. Rotating the first stud screw drives the first adjustment block against the boring tool holder body to achieve Y-direction movement. The design of the first stud screw with opposite threads allows for simultaneous movement in two directions when the first stud screw is rotated, enabling micro-displacement control of the first adjustment block, thereby precisely adjusting the position of the boring tool holder body in the Y-direction. This precise adjustment is crucial for high-precision machining and can meet the needs of workpieces requiring high machining accuracy.
[0008] Furthermore, in a high-precision adjustable boring tool holder disclosed herein, the second adjustment assembly includes a second adjustment block provided with a second bevel. The second adjustment block is positioned on the side of the boring tool holder body facing away from the blade in the X-direction, and contacts the corresponding side surface of the boring tool holder body through the second bevel. The design of the second bevel enables the second adjustment block to produce a significant displacement effect through a slight displacement during adjustment, thereby achieving precise fine-tuning of the boring tool holder body in the X-direction. This allows precise control of its position in the X-direction, improving machining accuracy. The second adjustment block contacts the side surface of the boring tool holder body through the second bevel, resulting in a large contact bearing area, capable of withstanding significant cutting forces. This ensures machining stability.
[0009] Furthermore, in a high-precision adjustable boring tool clamp in the present application, the second adjustment assembly also includes a second stud screw, which includes a third thread segment and a fourth thread segment, the third and fourth thread segments being arranged in opposite directions. The second stud screw is connected to the second adjustment block via the third thread segment and to the boring bar via the fourth thread segment. Rotating the second stud screw drives the second adjustment block against the boring tool clamp body to achieve X-direction movement. The second stud screw is designed with opposite threads, so when the second stud screw is rotated, it can act in two directions simultaneously, achieving micro-displacement control of the second adjustment block, thereby precisely adjusting the position of the boring tool clamp body in the X direction. This precise adjustment is crucial for high-precision machining and can meet the needs of workpieces with high machining accuracy requirements.
[0010] Furthermore, in the present application, a high-precision adjustable boring tool holder is provided with a groove on the holder body that matches the shape of the blade, and the blade is disposed in the groove. The groove matches the shape of the blade and can provide precise positioning for the blade, ensuring that the blade will not shift or wobble after installation, thereby improving machining accuracy.
[0011] The utility model also provides a boring tool structure including a group of the above-mentioned high-precision adjustable boring tool clamps and a boring tool rod, wherein the boring tool rod includes a rod body, a group of boring tool clamp grooves, and a group of chip removal grooves, wherein the boring tool clamp grooves and the chip removal grooves are arranged adjacent to each other in sequence at the side ends of the rod body in the circumferential direction, and the boring tool clamp is installed in the boring tool clamp grooves.
[0012] Furthermore, a boring tool structure of the present application also includes a grafted water hole, which is provided on the rod body, and the chip removal groove is provided with a dispersed internal coolant hole. The grafted water hole can be easily connected to an external cooling system to achieve a circulating supply of coolant, improving the stability and reliability of the cooling effect. The dispersed internal coolant hole can directly spray coolant into the cutting area, effectively reducing cutting temperature, reducing tool wear, and extending tool life. At the same time, the coolant can also flush away chips, further improving the chip removal effect.
[0013] It can be seen from the above technical solution that the utility model has the following beneficial effects:
[0014] 1. The high-precision adjustable boring tool holder described in this utility model uses a first adjustment component and a second adjustment component to precisely fine-tune the boring tool holder body in the Y and X directions, respectively. This achieves high-precision control of the tool position, improves machining accuracy, and meets the machining needs of workpieces with high dimensional accuracy requirements. The adjustment components utilize the left-right rotation principle and an inclined surface design to achieve precise adjustment of small displacements, ensuring the accuracy of tool position adjustment.
[0015] 2. The high-precision adjustable boring tool clamp described in the utility model makes the adjustment operation simple and convenient through the design of the first double-headed screw and the second double-headed screw. The first double-headed screw and the second double-headed screw are both provided with reverse threads, and the rotation can produce an effect in two directions at the same time, thereby driving the adjustment block to realize the movement in the corresponding direction without the need for complicated equipment and operation procedures.
[0016] 3. The boring tool holder body is firmly installed on the boring tool bar through fasteners. The first adjusting block and the second adjusting block are in close contact with the boring tool holder body through corresponding inclined surfaces, which also play a limiting role. The contact area is large and can withstand a large amount of cutting force, ensuring that it will not loosen or fall off during the processing process, thereby improving the safety and stability of the processing. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the structure of a high-precision adjustable boring tool holder of the utility model;
[0018] Figure 2 This is a schematic diagram of the disassembly structure of a high-precision adjustable boring tool holder of the utility model;
[0019] Figure 3 Schematic diagram of the boring bar structure;
[0020] Figure 4 This is a schematic diagram of adjusting the first stud screw of a high-precision adjustable boring tool holder of the utility model to achieve displacement of the boring tool holder body;
[0021] Figure 5 The utility model is a schematic diagram of adjusting the second double-headed screw of a high-precision adjustable boring tool clamp to achieve the displacement of the boring tool clamp body.
[0022] Explanation of the figures in the specification: 1-boring tool holder body, 11-groove, 2-fastener, 3-blade, 31-blade fastener, 4-first adjusting assembly, 41-first adjusting block, 411-first bevel, 42-first double-headed screw, 421-first threaded segment, 422-second threaded segment, 5-second adjusting assembly, 51-second adjusting block, 511-second bevel, 52-second double-headed screw, 521-third threaded segment, 522-fourth threaded segment, 6-boring tool rod, 61-rod body, 62-boring tool holder groove, 63-chip groove, 64-grafted water hole, 65-distributed internal cooling hole. DETAILED DESCRIPTION
[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0024] Example 1
[0025] like Figure 1 、 2The high-precision adjustable boring tool holder shown in Figures 3 includes a boring tool holder body 1, a fastener 2, the boring tool holder body 1 being mounted on a boring bar 6 via the fastener 2; a blade 3, and a blade fastener 31, the blade 3 being mounted on the edge of the boring tool holder body 1 via the blade fastener 31; a first adjustment assembly 4, the first adjustment assembly 4 being located on the side of the boring tool holder body 1 away from the blade 3 in the Y direction and abutting against the boring tool holder body 1, and the first adjustment assembly 4 adjusting the movement of the boring tool holder body 1 in the Y direction using the principle of left-right rotation; and a second adjustment assembly 5, the second adjustment assembly 5 being located on the side of the boring tool holder body 1 away from the blade 3 in the X direction and abutting against the boring tool holder body 1, and the second adjustment assembly 5 adjusting the movement of the boring tool holder body 1 in the X direction using the principle of left-right rotation. By fine-tuning the boring tool holder body 1 in the X and Y directions using the first adjustment assembly 4 and the second adjustment assembly 5, respectively, high-precision control of the tool position can be achieved, thereby improving machining accuracy and meeting the machining requirements for workpieces with high dimensional accuracy. No complicated disassembly operation is required, and adjustments can be made with simple tools. No professional skills or complex equipment are required. The tool position can be quickly adjusted using the left-right rotation adjustment principle, which saves adjustment time and improves production efficiency. The boring tool clamp body 1 is firmly installed on the boring bar 6 through the fastener 2. The first adjustment component and the second adjustment component also play a certain limiting role, ensuring that there will be no loosening or falling off during the processing, thereby improving the safety and reliability of the processing. The boring tool clamp body 1 is installed on the head of the boring bar 6 along the axial direction of the boring bar 6. Multiple boring tool clamp bodies 1 can be provided, such as Figure 3 The structural diagram of the boring bar 6 shown is only an example of a boring bar. There are many specific models. The overall shape is a cylindrical rod with axial and radial directions.
[0026] In this embodiment, the first adjustment assembly 4 includes a first adjustment block 41. The first adjustment block 41 is provided with a first bevel 411. The first adjustment block 41 is located on the side of the boring tool holder body 1 away from the blade 3 in the Y direction, and contacts the corresponding side surface of the boring tool holder body 1 through the first bevel 411. The design of the first bevel 411 enables the first adjustment block 41 to produce a large pushing effect through a small displacement during adjustment, thereby achieving precise fine-tuning of the boring tool holder body 1 in the Y direction. Its position in the Y direction can be precisely controlled, improving processing accuracy. The first adjustment block 41 contacts the side surface of the boring tool holder body 1 through the first bevel 411, resulting in a large contact bearing area and capable of withstanding large cutting forces. This ensures processing stability.
[0027] In this embodiment, the first adjustment component 4 also includes a first double-headed screw 42, and the first double-headed screw 42 includes a first thread segment 421 and a second thread segment 422. The first thread segment 421 and the second thread segment 422 are arranged in opposite directions. The first double-headed screw 42 is connected to the first adjustment block 41 through the first thread segment 421, and is connected to the boring tool rod 6 through the second thread segment 422. Rotating the first double-headed screw 42 drives the first adjustment block 41 to move against the boring tool holder body 1 in the Y direction. The first double-headed screw 42 is designed with opposite threads. When the first double-headed screw 42 is rotated, it can act in two directions at the same time, and can achieve micro-displacement control of the first adjustment block 41 to accurately adjust the position of the boring tool holder body 1 in the Y direction. This kind of precise adjustment is crucial for high-precision machining and can meet the needs of workpieces with high machining accuracy requirements. Figure 4 As shown, for example, but not limited to this specific value, the angle of the first bevel 411 is set to 8 degrees. By rotating the first stud screw 42 clockwise, the first adjustment block 41 is displaced 1 mm, resulting in an adjustment of 0.17 mm in the Y direction (radial direction of the boring bar 6). The first thread segment 421 is a left-hand thread, and the second thread segment 422 is a right-hand thread.
[0028] In this embodiment, the second adjustment assembly 5 includes a second adjustment block 51, which is provided with a second bevel 511. The second adjustment block 51 is positioned on the side of the boring tool holder body 1 facing away from the blade 3 in the X-direction. The second bevel 511 contacts the corresponding side surface of the boring tool holder body 1. The design of the second bevel 511 enables the second adjustment block 51 to produce a significant displacement effect during adjustment, thereby achieving precise fine-tuning of the boring tool holder body 1 in the X-direction. This allows precise control of its position in the X-direction, improving machining accuracy. The second adjustment block 51 contacts the side surface of the boring tool holder body 1 through the second bevel 511, providing a large contact area and capable of withstanding significant cutting forces, thus ensuring machining stability.
[0029] In this embodiment, the second adjustment component 5 also includes a second double-headed screw 52, and the second double-headed screw 52 includes a third thread segment 521 and a fourth thread segment 522. The third thread segment 521 and the fourth thread segment 522 are set in opposite directions. The second double-headed screw 52 is connected to the second adjustment block 51 through the third thread segment 521, and is connected to the boring tool rod 6 through the fourth thread segment 522. Rotating the second double-headed screw 52 drives the second adjustment block 51 to move against the boring tool holder body 1 in the X direction. The second double-headed screw 52 is designed with opposite threads. When the second double-headed screw 52 is rotated, it can act in two directions at the same time, and can achieve micro-displacement control of the second adjustment block 51, thereby accurately adjusting the position of the boring tool holder body 1 in the X direction. This kind of precise adjustment is crucial for high-precision machining and can meet the needs of workpieces with high machining accuracy requirements. Figure 5 As shown, for example, but not limited to this specific value, the angle of the second bevel 511 is set to 8 degrees. By rotating the second stud screw 52 clockwise, the second adjustment block 51 is displaced 1.15 mm, resulting in an adjustment of 0.162 mm in the X direction (the axial direction of the boring bar 6). The third thread segment 521 is a left-hand thread, and the fourth thread segment 522 is a right-hand thread.
[0030] In this embodiment, the boring tool holder body 1 is further provided with a groove 11 that matches the shape of the blade 3, and the blade 3 is positioned within the groove 11. The groove 11 matches the shape of the blade 3, providing precise positioning for the blade 3 and ensuring that the blade 3 does not shift or wobble after installation, thereby improving machining accuracy. The blade 6 is removably mounted within the groove 11 via a blade fastener 31. In this embodiment, the blade 3 preferably has a triangular shape. If a blade head becomes worn, it can be removed, rotated, and replaced with a new one.
[0031] like Figure 3 The boring tool structure shown includes a boring tool clamp and a boring tool rod 6. The boring tool rod 6 includes a rod body 61, a group of boring tool clamp grooves 62, and a group of chip removal grooves 63. The boring tool clamp grooves 62 and the chip removal grooves 63 are arranged adjacent to each other at the side ends of the rod body 61 in sequence, and the boring tool clamp is installed in the boring tool clamp groove 62.
[0032] A boring tool structure of this embodiment further includes a grafting water hole 64 , which is provided on the rod body 61 , and a distributed internal cooling hole 65 is provided on the chip groove 63 .
[0033] The above embodiments are illustrative and intended to illustrate the technical concepts and features of the present invention so that those skilled in the art can understand the present invention and implement it accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention shall be included within the scope of protection of the present invention.
Claims
1. A high-precision adjustable boring tool holder, characterized by: The invention comprises a boring tool holder body (1), a fastener (2), wherein the boring tool holder body (1) is mounted on a boring tool rod (6) via the fastener (2); a blade (3), a blade fastener (31), wherein the blade (3) is mounted on the edge of one end of the boring tool holder body (1) via the blade fastener (31); a first adjusting component (4), wherein the first adjusting component (4) is arranged on a side of the boring tool holder body (1) away from the blade (3) in the Y direction and contacts the boring tool holder body (1), and the first adjusting component (4) adjusts the boring tool holder body (1) to move in the Y direction; and a second adjusting component (5), wherein the second adjusting component (5) is arranged on a side of the boring tool holder body (1) away from the blade (3) in the X direction and contacts the boring tool holder body (1), and the second adjusting component (5) adjusts the boring tool holder body (1) to move in the X direction.
2. The high-precision adjustable boring tool holder according to claim 1, characterized in that: The first adjustment assembly (4) comprises a first adjustment block (41) and a first stud screw (42). The first adjustment block (41) is provided with a first inclined surface (411). The first adjustment block (41) is arranged on a side of the boring tool holder body (1) away from the blade (3) in the Y direction and is connected to the boring tool rod (6) through the first stud screw (42). The first inclined surface (411) contacts the corresponding side surface of the boring tool holder body (1).
3. The high-precision adjustable boring tool holder according to claim 2, characterized in that: The first double-headed screw (42) comprises a first threaded section (421) and a second threaded section (422), wherein the first threaded section (421) and the second threaded section (422) are arranged in opposite directions. The first double-headed screw (42) is connected to the first adjustment block (41) via the first threaded section (421), and is connected to the boring tool rod (6) via the second threaded section (422). Rotating the first double-headed screw (42) drives the first adjustment block (41) to move against the boring tool holder body (1) in the Y direction.
4. The high-precision adjustable boring tool holder according to claim 3, characterized in that: The second adjustment assembly (5) comprises a second adjustment block (51) and a second stud screw (52). The second adjustment block (51) is provided with a second inclined surface (511). The second adjustment block (51) is arranged on a side of the boring tool holder body (1) away from the blade (3) in the X direction and is connected to the boring tool rod (6) through the second stud screw (52). The second inclined surface (511) contacts the corresponding side surface of the boring tool holder body (1).
5. The high-precision adjustable boring tool holder according to claim 4, characterized in that: The second adjustment component (5) further includes a second double-headed screw (52), the second double-headed screw (52) including a third threaded section (521) and a fourth threaded section (522), the third threaded section (521) and the fourth threaded section (522) being arranged in opposite directions, the second double-headed screw (52) is connected to the second adjustment block (51) via the third threaded section (521), and is connected to the boring tool rod (6) via the fourth threaded section (522), and the second double-headed screw (52) is rotated to drive the second adjustment block (51) to move against the boring tool holder body (1) in the X direction.
6. The high-precision adjustable boring tool holder according to claim 1, characterized in that: The boring tool holder body (1) is further provided with a groove (11) matching the shape of the blade (3), and the blade (3) is arranged in the groove (11).
7. A boring tool structure comprising a set of a high-precision adjustable boring tool holder and a boring tool bar according to any one of claims 1 to 6, characterized in that: The boring tool rod (6) comprises a rod body (61), a group of boring tool clamping grooves (62), and a group of chip removal grooves (63). The boring tool clamping grooves (62) and the chip removal grooves (63) are sequentially arranged adjacent to the side ends of the rod body (61) in the circumferential direction, and the boring tool clamp is installed in the boring tool clamping groove (62).
8. The boring tool structure according to claim 7, characterized in that: It also includes a grafting water hole (64), the grafting water hole (64) is provided on the rod body (61), and the chip removal groove (63) is provided with a dispersed internal cooling hole (65).