Cutter fixing device of numerical control machine tool

Abstract

The utility model discloses a cutter fixing device of a numerical control machine tool, and relates to the technical field of machine tool cutter fixing. The lifting device comprises a base, a fixing assembly and a lifting assembly, the base comprises a fixing base, a mounting groove is formed in the top of the fixing base, the lifting assembly is arranged in the mounting groove, the fixing assembly is arranged above the lifting assembly, and a lower lifting block is driven to move left and right by rotating a threaded rod. The lower lifting groove moves leftwards to drive the upper lifting groove to move upwards, the lower lifting groove moves rightwards to drive the upper lifting groove to move downwards, the purpose of adjusting the height of the cutter is achieved by adjusting the height of the upper lifting block, gaskets do not need to be added, the cutter does not need to be disassembled and assembled repeatedly, cutter adjustment is facilitated, and the machining efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of machine tool tool fixing technology, and more specifically, it relates to a tool fixing device for CNC machine tools. Background Technology

[0002] CNC machine tools are short for numerical control machine tools. They are automated machine tools equipped with a program control system, characterized by high machining accuracy and stable machining quality. They can automatically complete a series of operations without human assistance. The tool post on a CNC machine tool is an important component for placing cutting tools. Many tool posts also directly participate in the cutting work, such as the square tool post on a horizontal lathe, the turret tool post on a turret lathe, the return wheel tool post on a return wheel turret lathe, the turret tool post and the balance tool post on an automatic lathe, etc.

[0003] Existing machine tool tools are often fixed to the machine tool by tool holders. However, the height of existing tool holders is fixed. After the tool is installed, the height of the tool often needs to be adjusted by adding shims to make it level with the height of the machine tool. This requires multiple tool disassembly and assembly, which is inconvenient and affects machining efficiency. During the installation process, the tool needs to be fixed by hand by turning the bolts. This can easily cause displacement during the fixing process, affecting machining accuracy. Utility Model Content

[0004] In view of the problems in the related technologies, this utility model proposes a tool fixing device for CNC machine tools to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a tool fixing device for a CNC machine tool, comprising a base, a fixing component, and a lifting component. The base includes a fixed base with an installation groove on its top. The lifting component is disposed within the installation groove, and the fixing component is disposed above the lifting component. The lifting component includes an upper lifting block, a lower lifting block, a rotating threaded rod, and a fixing block. The lower lifting block is disposed at the bottom of the groove opening, and the upper lifting block is disposed above the lower lifting block. The rotating threaded rod is disposed on one side of the lower lifting block, and the fixing block is disposed at the end of the groove opening near the rotating threaded rod.

[0007] Furthermore, the base includes a connecting block and a fixed top seat. The connecting block is fixedly installed on the top of the fixed base, and the fixed top seat is fixedly installed on the top of the connecting block. A plurality of fixed threaded holes are opened on the side of the top of the fixed top seat near the mounting groove, and the fixed threaded holes penetrate the fixed top seat.

[0008] Furthermore, the inner wall of the mounting groove is provided with several upper and lower limiting grooves on the side near the connecting block. Upper and lower sliders are movably installed in the upper and lower limiting grooves and are fixedly connected to the upper lifting block. The bottom end of the inner wall of the mounting groove is provided with left and right limiting grooves. Left and right sliders are movably installed in the left and right limiting grooves and are fixedly connected to the lower lifting block.

[0009] Furthermore, the fixing assembly includes a fixing threaded rod, a fixing spring, and a fixing pressure plate. The fixing spring pushes the fixing pressure plate toward the lifting block. The fixing pressure plate and the lifting block initially fix the tool between them. Rotating the fixing threaded rod further fixes the tool.

[0010] Furthermore, a plurality of the fixed threaded rods are movably installed in the fixed threaded hole, a plurality of the fixed springs are fixedly installed on the bottom end of the fixed top seat near the mounting groove, the fixed pressure plate is fixedly installed on the bottom end of the fixed springs, and a plurality of fixed circular grooves are opened on the top end of the fixed pressure plate, and the fixed circular grooves penetrate the fixed pressure plate.

[0011] Furthermore, the rotating threaded rod rotates, pushing the lower lifting block to move away from the fixed block. During this movement, the lower lifting block lifts the upper lifting block, which then moves towards the top.

[0012] Furthermore, the lower lifting block is movably installed at the bottom of the mounting groove, the upper lifting block is movably installed on the inner wall of the mounting groove near the connecting block, and the fixing block is fixedly installed at the bottom of the mounting groove near the side away from the upper lifting block. The fixing block is sleeved with the rotating threaded rod, and the rotating threaded rod passes through the fixing block and is movably installed with the lower lifting block.

[0013] Furthermore, the diameter of the fixed circular groove is larger than the diameter of the fixed threaded rod.

[0014] This utility model has the following advantages: by rotating the threaded rod, the lower lifting block moves left and right, the lower lifting groove moves to the left, causing the upper lifting groove to move upward, and the lower lifting groove moves to the right, causing the upper lifting groove to move downward. By adjusting the height of the upper lifting block, the height of the tool can be adjusted. There is no need to add shims or disassemble and assemble the tool multiple times, which facilitates the adjustment of the tool and improves processing efficiency.

[0015] The tool is fixed by pressing it with a fixed pressure plate, eliminating the need for manual fixing and preventing displacement during the fixing process. The fixed pressure plate provides initial fixation of the tool, facilitating the up-and-down movement of the lifting block for tool alignment and improving work efficiency.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is one of the overall three-dimensional structural schematic diagrams of this utility model;

[0019] Figure 2 This is the second schematic diagram of the overall three-dimensional structure of this utility model;

[0020] Figure 3 This is one of the overall cross-sectional structural schematic diagrams of this utility model;

[0021] Figure 4 This is the second overall cross-sectional view of the present invention.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Base; 101. Fixed base; 102. Mounting slot; 103. Connecting block; 104. Fixed top seat; 2. Fixing assembly; 201. Fixed threaded rod; 202. Fixed spring; 203. Fixed pressure plate; 3. Lifting assembly; 301. Upper lifting block; 302. Lower lifting block; 303. Rotating threaded rod; 304. Fixed block. Detailed Implementation

[0024] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0025] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0026] Please see Figure 1-4As shown, this utility model is a tool fixing device for a CNC machine tool, including a base 1, a fixing component 2, and a lifting component 3. The base 1 includes a fixed base 101, and the top of the fixed base 101 is provided with an installation groove 102. The lifting component 3 is disposed in the installation groove 102, and the fixing component 2 is disposed above the lifting component 3. The lifting component 3 includes an upper lifting block 301, a lower lifting block 302, a rotating threaded rod 303, and a fixing block 304. The lower lifting block 302 is disposed at the bottom of the groove of the installation groove 102, the upper lifting block 301 is disposed above the lower lifting block 302, the rotating threaded rod 303 is disposed on one side of the lower lifting block 302, and the fixing block 304 is disposed at the end of the groove of the installation groove 102 near the rotating threaded rod 303.

[0027] In one embodiment, the base 1 includes a connecting block 103 and a fixed top seat 104. The connecting block 103 is fixedly installed on the top of the fixed base 101, and the fixed top seat 104 is fixedly installed on the top of the connecting block 103. The fixed top seat 104 has a plurality of fixed threaded holes on the side of its top end near the mounting groove 102, and the fixed threaded holes penetrate the fixed top seat 104.

[0028] In one embodiment, for the base 1, the inner wall of the mounting groove 102 near the connecting block 103 is provided with a plurality of upper and lower limiting grooves, and upper and lower sliders are movably installed in the upper and lower limiting grooves. The upper and lower sliders are fixedly connected to the upper lifting block 301. The bottom end of the inner wall of the mounting groove 102 is provided with a left and right limiting groove, and left and right sliders are movably installed in the left and right limiting grooves. The left and right sliders are fixedly connected to the lower lifting block 302.

[0029] In one embodiment, the fixing component 2 includes a fixing threaded rod 201, a fixing spring 202, and a fixing pressure plate 203. The fixing spring 202 pushes the fixing pressure plate 203 toward the lifting block 301. The fixing pressure plate 203 and the lifting block 301 initially fix the tool between them, and the fixing threaded rod 201 is rotated to fix the tool again.

[0030] In one embodiment, for the aforementioned fixing component 2, a plurality of fixing threaded rods 201 are movably installed in the fixing threaded hole, a plurality of fixing springs 202 are fixedly installed on the bottom end of the fixing top seat 104 near the mounting groove 102, a fixing pressure plate 203 is fixedly installed on the bottom end of the fixing springs 202, and a plurality of fixing circular grooves are opened at the top end of the fixing pressure plate 203, and the fixing circular grooves penetrate the fixing pressure plate 203.

[0031] In one embodiment, for the above-mentioned lifting assembly 3, the rotating threaded rod 303 rotates, and the rotating threaded rod 303 pushes the lower lifting block 302 to move away from the fixed block 304. During the movement, the lower lifting block 302 lifts the upper lifting block 301, and the upper lifting block 301 moves towards the top.

[0032] In one embodiment, for the lifting assembly 3 described above, the lower lifting block 302 is movably installed at the bottom end of the mounting groove 102, the upper lifting block 301 is movably installed on the inner wall of the mounting groove 102 near the connecting block 103, and the fixing block 304 is fixedly installed at the bottom end of the mounting groove 102 near the side away from the upper lifting block 301. The rotating threaded rod 303 is sleeved on the fixing block 304, and the rotating threaded rod 303 passes through the fixing block 304 and is movably installed with the lower lifting block 302.

[0033] In one embodiment, for the aforementioned fixing component 2, the diameter of the fixing groove is larger than the diameter of the fixing threaded rod 201.

[0034] In summary, using the above-mentioned technical solution of this utility model, the cutting tool is placed on the top of the upper lifting block 301, and the fixed pressure plate 203 is pressed downward under the action of the fixed spring 202. The bottom end of the fixed pressure plate 203 contacts the cutting tool and presses it. The upper lifting block 301 and the fixed pressure plate 203 initially fix the cutting tool. Rotating the threaded rod 303 causes the lower lifting block 302 to move left and right, which in turn causes the upper lifting block 301 to move up and down, thereby adjusting the height of the cutting tool and completing the tool setting work. After the tool setting is completed, rotating the fixed threaded rod 201 causes the bottom end of the fixed threaded rod 201 to pass through the fixed circular groove at the top of the fixed pressure plate 203 and contact and press the cutting tool, thus performing a second fixation of the cutting tool and completing the tool fixing work.

[0035] Through the above technical solution, 1. By rotating the threaded rod 303, the lower lifting block 302 is moved left and right. The lower lifting block 302 moves to the left, causing the upper lifting block 301 to move upward. The lower lifting block 302 moves to the right, causing the upper lifting block 301 to move downward. By adjusting the height of the upper lifting block 301, the height of the tool can be adjusted. There is no need to add shims or disassemble and assemble the tool multiple times, which facilitates the adjustment of the tool and improves the processing efficiency.

[0036] 2. The tool is fixed by the pressure plate 203, which eliminates the need to fix the tool by hand and avoids displacement during the fixing process. The pressure plate 203 initially fixes the tool, which facilitates the up and down movement of the lifting block 301 to adjust the tool and improves work efficiency.

[0037] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A tool fixing device for a CNC machine tool, comprising a base (1), a fixing component (2), and a lifting component (3), wherein the base (1) comprises a fixed base (101), the top of the fixed base (101) is provided with an installation groove (102), the installation groove (102) is provided with a lifting component (3), the lifting component (2) is provided above the lifting component (3), the lifting component (3) comprises an upper lifting block (301), a lower lifting block (302), a rotating threaded rod (303), and a fixing block (304), the lower lifting block (302) is provided at the bottom end of the groove of the installation groove (102), the upper lifting block (301) is provided above the lower lifting block (302), the rotating threaded rod (303) is provided on one side of the lower lifting block (302), and the fixing block (304) is provided at the end of the groove of the installation groove (102) near the rotating threaded rod (303).

2. The tool fixing device for a CNC machine tool according to claim 1, characterized in that, The base (1) includes a connecting block (103) and a fixed top seat (104). The connecting block (103) is fixedly installed on the top of the fixed base (101), and the fixed top seat (104) is fixedly installed on the top of the connecting block (103). The fixed top seat (104) has several fixed threaded holes on the side of its top end near the mounting groove (102), and the fixed threaded holes penetrate the fixed top seat (104).

3. The tool fixing device for a CNC machine tool according to claim 2, characterized in that, The inner wall of the mounting groove (102) near the connecting block (103) is provided with several upper and lower limiting grooves. Upper and lower sliders are movably installed in the upper and lower limiting grooves. The upper and lower sliders are fixedly connected to the upper lifting block (301). The bottom of the inner wall of the mounting groove (102) is provided with left and right limiting grooves. Left and right sliders are movably installed in the left and right limiting grooves. The left and right sliders are fixedly connected to the lower lifting block (302).

4. The tool fixing device for a CNC machine tool according to claim 2, characterized in that, The fixing component (2) includes a fixing threaded rod (201), a fixing spring (202), and a fixing pressure plate (203). The fixing spring (202) pushes the fixing pressure plate (203) toward the lifting block (301). The fixing pressure plate (203) and the lifting block (301) initially fix the tool between them. The fixing threaded rod (201) is rotated to fix the tool again.

5. The tool fixing device for a CNC machine tool according to claim 4, characterized in that, A plurality of fixed threaded rods (201) are movably installed in the fixed threaded hole. A plurality of fixed springs (202) are fixedly installed on the bottom end of the fixed top seat (104) near the mounting groove (102). A fixed pressure plate (203) is fixedly installed on the bottom end of the fixed springs (202). A plurality of fixed circular grooves are opened on the top end of the fixed pressure plate (203), and the fixed circular grooves penetrate the fixed pressure plate (203).

6. The tool fixing device for a CNC machine tool according to claim 1, characterized in that, The rotating threaded rod (303) rotates, and the rotating threaded rod (303) pushes the lower lifting block (302) to move away from the fixed block (304). During the movement, the lower lifting block (302) lifts the upper lifting block (301), and the upper lifting block (301) moves towards the top.

7. A tool fixing device for a CNC machine tool according to claim 2, characterized in that, The lower lifting block (302) is movably installed at the bottom of the mounting groove (102). The upper lifting block (301) is movably installed on the inner wall of the mounting groove (102) near the connecting block (103). The fixing block (304) is fixedly installed at the bottom of the mounting groove (102) near the side away from the upper lifting block (301). The rotating threaded rod (303) is sleeved on the fixing block (304). The rotating threaded rod (303) passes through the fixing block (304) and is movably installed with the lower lifting block (302).

8. A tool fixing device for a CNC machine tool according to claim 5, characterized in that, The diameter of the fixed circular groove is larger than the diameter of the fixed threaded rod (201).

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