An adjustable tool holder assembly for a CNC lathe

Abstract

The utility model relates to numerical control lathe tool installation and switching technical field discloses a kind of adjustable tool rest assemblies suitable for numerical control lathe, including square hollow base, rotary mechanism is equipped in base to realize tool switching, support column is connected in base middle, the lower end of support column is cylinder, upper end is square, its upper four sides are equipped with sliding slot, the slider of four groups of tool rest is slidably connected in sliding slot, tool rest is connected through boss, clamping assembly is equipped in tool rest reverse side for clamping tool;Hydraulic rod is equipped on one side below support column and adjusts tool rest position;Clamping assembly is driven sliding block by screw rod, and tool clamping is realized by driving top plate and clamping block action;Rotary mechanism is driven worm by motor through transmission shaft, meshing worm gear drives support column rotation and completes tool switching;The component can flexibly adjust tool rest position and firmly clamped tool, and strong adaptability, improve numerical control lathe processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of CNC lathe tool installation and switching technology, specifically an adjustable tool post assembly suitable for CNC lathes. Background Technology

[0002] In the field of CNC lathe metal cutting, the tool turret assembly, as the core component for tool installation and switching, directly affects the machining range and machining accuracy of the equipment due to its adaptability, adjustment efficiency and degree of automation.

[0003] A search revealed existing technology (application number: CN201921970511.0), which describes "a tool holder adjustment device and lathe." Although this utility model eliminates thread backlash through the cooperation of the adjusting screw and the backlash-eliminating nut, thus improving the position adjustment accuracy to a certain extent, in practical applications, this existing technology is only designed for manual linear displacement adjustment of a single tool holder. The clamping structure is fixed and the clamping blocks cannot be disassembled or replaced, resulting in its applicability only to tools of specific specifications. When facing different sizes and types of tools or diverse workpiece processing needs, the entire tool holder assembly needs to be replaced, resulting in poor adaptability and limited processing range, making it difficult to meet the flexible needs of multi-process composite processing scenarios. Its adjustment and tool changing process relies entirely on manual operation: adjusting the tool holder position requires manually rotating the screw, and changing the tool requires disassembling and clamping components one by one. This is not only cumbersome and time-consuming, but also prone to affecting the stability of processing accuracy due to human error.

[0004] Therefore, there is an urgent need for an adjustable tool post assembly for CNC lathes that can adapt to multiple tool specifications, enable automated adjustment and tool changing of the tool post, and take into account the stability of machining accuracy. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an adjustable tool post assembly suitable for CNC lathes.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable tool post assembly suitable for CNC lathes, comprising a base, the base being square and hollow inside, a rotating mechanism being provided inside the base for tool switching, a support column being connected to the lower end of the middle of the base, the support column having a cylindrical lower end and a square upper end, a sliding groove being provided around the upper perimeter of the support column, and a slider above the tool post being slidably connected in the sliding groove, the tool post being provided in four sets, and the tool posts being connected to each other by protrusions, and a clamping assembly being provided inside the opposite side of the tool post for clamping the tool.

[0007] As a further description of the above technical solution:

[0008] A hydraulic rod is provided on one side below the support column. The fixed end of the hydraulic rod is connected to the upper surface of the base, and the telescopic end of the hydraulic rod abuts against the lower surface of the slider of the tool holder. The upper surface of the tool holder is threaded to the lower part of the clamping bolt.

[0009] As a further description of the above technical solution:

[0010] The clamping assembly includes a clamping block placed on the middle surface of the tool holder. A slider is bolted to the side of the clamping block near the tool holder, and the slider slides in a groove in the middle of the tool holder.

[0011] As a further description of the above technical solution:

[0012] The lower surface of the clamping block is connected to the upper end of the top plate on both sides. The bottom of the top plate slides inside the tool holder. The side wall of the top plate is provided with two inclined through grooves, and one end of the rotating shaft is placed in the groove. The other end of the rotating shaft is connected to both sides of the sliding block.

[0013] As a further description of the above technical solution:

[0014] The sliding block is provided in two sets, and the middle of the sliding block is threadedly connected to a screw rod. One end of the screw rod is rotatably connected to the inner side wall of the tool holder, and the other end passes through the other side wall of the tool holder.

[0015] As a further description of the above technical solution:

[0016] The rotating mechanism includes a motor, which is placed on one side of the base. The output shaft of the motor is connected to one end of a transmission shaft, and the other end of the transmission shaft is connected to one end of a worm gear. The other end of the worm gear is rotatably connected to the inner sidewall of the base.

[0017] As a further description of the above technical solution:

[0018] The worm gear meshes with one side of the worm wheel in the middle. The lower surface of the worm wheel is rotatably connected to the inner bottom surface of the base, and the middle of the worm wheel is connected to the lower part of the support column.

[0019] This utility model has the following beneficial effects:

[0020] First, through the sliding adjustment of the tool post, the height adjustment of the clamping components, and the replaceable design of the clamping blocks, it can adapt to different specifications of cutting tools and diverse workpiece processing needs, significantly improving the versatility and adaptability of CNC lathe tool post and expanding the processing range of the equipment.

[0021] Second, by using hydraulic rods to achieve rapid lifting and lowering adjustment of the tool holder and a rotating mechanism to achieve automated tool switching, combined with the stable clamping function of the clamping components, the time for tool changing and position adjustment is effectively reduced, improving the machining efficiency and ease of operation of CNC lathes, and helping to ensure the stability of machining accuracy. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a cross-sectional view of the clamping component structure of this utility model;

[0024] Figure 3 This is an exploded view of the support column and tool holder structure of this utility model;

[0025] Figure 4 This is a cross-sectional view of the rotating mechanism structure of this utility model.

[0026] Legend:

[0027] 1. Base; 2. Support column; 3. Tool holder; 4. Clamping assembly; 5. Rotating mechanism; 6. Clamping bolt; 7. Hydraulic rod; 401. Clamping block; 402. Screw; 403. Sliding block; 404. Top plate; 501. Motor; 502. Drive shaft; 503. Worm gear; 504. Worm wheel. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Example 1:

[0032] like Figures 1 to 4 As shown in the figure, this embodiment provides an adjustable tool post assembly suitable for CNC lathes, including a base 1, which is square and hollow inside. A rotating mechanism 5 is provided inside the base 1 for tool switching. The lower end of a support column 2 is connected to the middle of the base 1. The lower end of the support column 2 is cylindrical and the upper end is square. Sliding grooves are provided around the upper part of the support column 2, and a slider above the tool post 3 is slidably connected in the sliding grooves. Four sets of tool posts 3 are provided, and the tool posts 3 are connected by protrusions. A clamping assembly 4 is provided inside the opposite side of the tool post 3 for clamping the tool.

[0033] In this embodiment, the clamping component 4 and the rotating mechanism 5 constitute an adjustable tool post assembly suitable for CNC lathes according to this application.

[0034] It should also be noted that the CNC lathe in this application can be a horizontal CNC lathe, a vertical CNC lathe, a CNC turning center, etc. Figure 1 In this embodiment, a horizontal CNC lathe is used as an example for description. Of course, other types of CNC lathes can also adopt a similar structure, which will not be described in detail below.

[0035] Understandable Figure 1 The diagram only schematically illustrates some of the components included in the adjustable tool holder assembly; the actual shape, size, position, and construction of these components are not subject to change. Figure 1 Due to limitations, adjustable tool holder assemblies can also include components that are more advanced than those available in other assemblies. Figure 1 More or fewer parts.

[0036] In addition, in this embodiment, T-shaped grooves are vertically arranged around the upper end of the support column 2, and the adjacent sides of the tool holder 3 are engaged by protrusions. The rotating mechanism 5 drives the support column 2 and the tool holder 3 to rotate to realize tool switching. The tool holder 3 adjusts its radial position by sliding along the groove of the support column 2 with a slider. The clamping component 4 fixes the tool, realizing multiple tool switching and position adjustment to adapt to different processing positions.

[0037] Specifically, a hydraulic rod 7 is provided on one side below the support column 2. The fixed end of the hydraulic rod 7 is connected to the upper surface of the base 1, and the telescopic end of the hydraulic rod 7 abuts against the lower surface of the slider of the tool holder 3. The lower part of the clamping bolt 6 is threadedly connected to one side of the upper surface of the tool holder 3.

[0038] In this embodiment, the hydraulic rod 7 extends and retracts to push the slider of the tool holder 3 to slide along the slide groove to adjust the height. After the clamping bolt 6 is tightened, the lower end presses against the upper surface of the tool, quickly adjusting the height of the tool holder 3 and stabilizing the tool.

[0039] Example 2:

[0040] A clamping component 4 is provided based on embodiment 1.

[0041] Specifically, the clamping assembly 4 includes a clamping block 401, which is placed on the middle surface of the tool holder 3. A slider is bolted to the side of the clamping block 401 near the tool holder 3, and the slider slides in the groove in the middle of the tool holder 3.

[0042] In a preferred embodiment, the clamping block 401 slides vertically along the slide groove with the slider, and the height position of the clamping block 401 is adjusted to adapt to tools of different heights.

[0043] Specifically, the lower surface of the clamping block 401 is connected to the upper end of the top plate 404 on both sides. The top plate 404 slides inside the tool holder 3. The side wall of the top plate 404 is provided with two inclined through grooves, and one end of the rotating shaft is placed in the groove. The other end of the rotating shaft is connected to both sides of the sliding block 403.

[0044] In this embodiment, the sliding block 403 moves to drive the rotating shaft to slide along the through groove, driving the top plate 404 to rise and fall vertically, which in turn drives the clamping block 401 to rise and fall, thus adjusting the tool height.

[0045] Specifically, there are two sets of sliding blocks 403, and the middle of the sliding blocks 403 is threadedly connected to the screw 402. One end of the screw 402 is rotatably connected to the inner side wall of the tool holder 3, and the other end passes through the other side wall of the tool holder 3.

[0046] With this configuration, the rotation of the screw 402 drives the two sets of sliding blocks 403 to move relative to or away from each other, thereby driving the top plate 404 and the clamping block 401 to rise and fall, thus achieving tool height adjustment.

[0047] Example 3:

[0048] A rotating mechanism 5 is provided based on embodiment 2.

[0049] Specifically, the rotating mechanism 5 includes a motor 501, which is placed on one side of the base 1. The output shaft of the motor 501 is connected to one end of the transmission shaft 502, and the other end of the transmission shaft 502 is connected to one end of the worm gear 503. The other end of the worm gear 503 is rotatably connected to the inner sidewall of the base 1.

[0050] Among them, the motor 501 drives the transmission shaft 502 to rotate, which in turn drives the worm gear 503 to rotate, providing power to the rotating mechanism and realizing power transmission.

[0051] Specifically, the worm 503 is engaged with one side of the worm wheel 504 in the middle, the lower surface of the worm wheel 504 is rotatably connected to the inner bottom surface of the base 1, and the middle of the worm wheel 504 is connected to the lower part of the support column 2.

[0052] In this embodiment, the worm wheel 504 is made of bronze and has the same number of teeth as the worm 503. The worm wheel 504 is connected to the support column 2 via a key. The worm 503 drives the worm wheel 504 to rotate, and the worm wheel 504 drives the support column 2 to rotate, thereby rotating the support column 2 and the tool holder 3 and completing the tool switching.

[0053] In actual use, the tool is first placed on the upper surface of the clamping block 401. Then, the knob on one side of the screw 402 is rotated, causing the screw 402 to rotate. The rotation of the screw 402 causes the threaded sliding block 403 to move. The movement of the sliding block 403 causes the inclined through-hole on the top plate 404 to rise. At this time, the top plate 404 slides inside the tool holder 3, and the upper end of the top plate 404 pushes the clamping block 401. The clamping block 401 slides along the inner side wall of the tool holder 3 via a slider on one side, thereby adjusting the height of the clamping block 401. After adjusting to a suitable height, the clamping bolt 6 is rotated, so that the lower end of the clamping bolt 6 abuts against the upper surface of the tool, thereby clamping the tool. At this time, the base 1 is moved by the moving device to perform processing. During the processing, the hydraulic rod 7 can be activated. The telescopic end pushes the lower surface of the slider on one side of the tool holder 3, causing the slider to slide in the groove of the support column 2, thereby adjusting the lifting and lowering of the tool holder 3. The lifting and lowering of the tool holder 3 drives the tool to lift and lower, thereby processing different positions of the workpiece. After processing is completed, the motor 501 can be started. The output shaft of the motor 501 drives the transmission shaft 502 to rotate. The rotation of the transmission shaft 502 drives the worm gear 503 to rotate. The worm gear 503 drives the meshing worm wheel 504 to rotate. The rotation of the worm wheel 504 drives the support column 2 to rotate. The support column 2 drives the tool holder 3 to rotate, thereby switching the tools clamped on different tool holders 3. If the clamping block 401 needs to be replaced, the bolt on one side of the clamping block 401 can be unscrewed to separate the clamping block 401 from the slider. At this time, the clamping block 401 can be separated from the tool holder 3. After replacement, the bolt can be screwed back in.

[0054] Both the hydraulic rod 7 and the motor 501 are electrically connected to the PLC controller, which is electrically connected to an external power supply. The PLC controller facilitates the power supply control of the electrical equipment, ensuring that the equipment can be powered on when needed, thus avoiding the situation where power cannot be supplied when power is required.

[0055] It should be noted that the controller can be a conventional known device that is controlled by a computer or other means. The detailed description of known functions and known components is omitted in the specific embodiments of this disclosure. In order to ensure the compatibility of the device, the operating methods used are consistent with the parameters of commercially available instruments.

[0056] 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. An adjustable tool post assembly suitable for CNC lathes, characterized in that: Includes a base (1), which is square and hollow inside. A rotating mechanism (5) is provided inside the base (1) for switching tools. The lower end of a support column (2) is connected to the middle of the base (1). The lower end of the support column (2) is cylindrical and the upper end is square. Sliding grooves are provided around the upper part of the support column (2), and a slider above the tool holder (3) is slidably connected in the sliding grooves. There are four sets of tool holders (3), and the tool holders (3) are connected by protrusions. A clamping assembly (4) is provided inside the opposite side of the tool holder (3), and the clamping assembly (4) is used to clamp the tool.

2. The adjustable tool post assembly for CNC lathes according to claim 1, characterized in that: A hydraulic rod (7) is provided on one side below the support column (2). The fixed end of the hydraulic rod (7) is connected to the upper surface of the base (1), and the telescopic end of the hydraulic rod (7) abuts against the lower surface of the slider of the tool holder (3). The upper surface of the tool holder (3) is threadedly connected to the lower part of the clamping bolt (6).

3. An adjustable tool post assembly for CNC lathes according to claim 2, characterized in that: The clamping assembly (4) includes a clamping block (401) which is placed on the middle surface of the tool holder (3). The clamping block (401) is connected to a slider by bolts on the side of the tool holder (3), and the slider slides in the groove in the middle of the tool holder (3).

4. An adjustable tool post assembly for CNC lathes according to claim 3, characterized in that: The lower surface of the clamping block (401) is connected to the upper end of the top plate (404) on both sides. The bottom of the top plate (404) slides inside the tool holder (3). The side wall of the top plate (404) is provided with two inclined through grooves, and one end of the rotating shaft is placed in the groove. The other end of the rotating shaft is connected to both sides of the sliding block (403).

5. An adjustable tool post assembly for CNC lathes according to claim 4, characterized in that: Two sets of sliding blocks (403) are provided, and the middle of the sliding blocks (403) is threadedly connected to the screw (402). One end of the screw (402) is rotatably connected to the inner side wall of the tool holder (3), and the other end passes through the other side wall of the tool holder (3).

6. An adjustable tool post assembly for CNC lathes according to claim 5, characterized in that: The rotating mechanism (5) includes a motor (501), which is placed on one side of the base (1). The output shaft of the motor (501) is connected to one end of a transmission shaft (502), and the other end of the transmission shaft (502) is connected to one end of a worm (503). The other end of the worm (503) is rotatably connected to the inner sidewall of the base (1).

7. An adjustable tool post assembly for CNC lathes according to claim 6, characterized in that: The worm (503) is engaged in the middle on one side of the worm wheel (504), the lower surface of the worm wheel (504) is rotatably connected to the inner bottom surface of the base (1), and the middle of the worm wheel (504) is connected to the lower part of the support column (2).

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