Lathe tool clamping mechanism

Abstract

The utility model discloses a lathe tool clamping mechanism, which belongs to the technical field of lathe tool assembly, and comprises a clamp body, the clamp body comprises a mounting block and a connecting block positioned on the side surface of the mounting block, and the connecting block is connected with a lathe tool apron. A plurality of adjacent mounting blocks can be arranged in the direction away from the connecting block according to the number of cutters needing to be assembled, an assembling cavity, four pre-assembling sliding grooves, a pair of assembling grooves and a pair of threaded holes which communicate with one another are formed in each mounting block, a milling cutter mounting part is slidably connected into each assembling cavity, and four pre-assembling sliding blocks are fixedly connected to the outer end of each milling cutter mounting part; a pair of positioning grooves is formed in the left end and the right end of the milling cutter mounting part, a pre-tightening sliding block is slidably connected into the assembling groove, and according to the scheme, the milling cutter can be positioned and pre-tightened in the mounting process, the safety risk in the assembling process can be effectively reduced, and the personal safety of operators is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of lathe tool assembly, and more specifically, to a lathe tool clamping mechanism. Background Art

[0002] Fixtures for CNC machine tools play a crucial role in machining. They are used to fix and support tools to ensure the accuracy and stability of the machining process.

[0003] The Chinese authorized utility model patent with the publication number CN211516110U discloses a lathe fixture. A plurality of tool fixing grooves are provided on the side of the extension block of the lathe fixture away from the fixed block, and multiple tools can be installed simultaneously, which is convenient for shortening the feed distance and also shortening the distance of the idle stroke, improving the working efficiency when machining long shaft workpieces.

[0004] When the above patent installs multiple tools simultaneously, when the locking bolt does not penetrate the top of the extension block and press against the upper surface of the fixed groove pressing plate, the fixed groove pressing plate alone cannot effectively fix the multiple installed tools stably. During the installation process of multiple tools, when the current tool is inserted into the tool fixing groove, it is easy to lift the fixed groove pressing plate, causing the previously installed tool to slide out of the tool fixing groove. There are certain assembly risks in this process, and even endanger the safety of operators. Summary of the Utility Model

[0005] 1. Technical Problems to be Solved

[0006] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a lathe tool clamping mechanism, which can position and pre-tighten the milling cutter during the installation process, effectively reduce the safety risks during the assembly process, and ensure the personal safety of operators.

[0007] 2. Technical Solutions

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A lathe tool clamping mechanism, a lathe tool clamping mechanism, includes a fixture body. The fixture body includes a mounting block and a connecting block located on its side. The connecting block is connected to the lathe tool holder. The mounting blocks are provided with a plurality of adjacent ones in the direction away from the connecting block according to the number of tools to be assembled as needed. An assembly cavity, four pre-assembly chutes, a pair of assembly grooves, and a pair of threaded holes are formed in the mounting block and communicate with each other. A milling cutter mounting part is slidably connected in the assembly cavity. Four pre-assembly sliders are fixedly connected to the outer end of the milling cutter mounting part. A pair of positioning grooves are provided at the left and right ends of the milling cutter mounting part. A pre-tightening slider is slidably connected in the assembly groove. Elastic rods are fixedly connected between the pre-tightening slider and the inner bottom end of the assembly groove. One end of the pre-tightening slider away from the elastic rod abuts against the positioning groove. A threaded groove is also formed in the milling cutter mounting part. Tightening bolts are installed in both the threaded hole and the threaded groove. This solution can achieve positioning and pre-fastening of the milling cutter during the installation process, effectively reducing the safety risks during the assembly process and ensuring the personal safety of the operator.

[0010] Further, the four pre-assembly sliders are annularly arranged at the outer end of the milling cutter mounting part with the axis of the milling cutter mounting part as the midpoint. The pre-assembly sliders are slidably connected to the pre-assembly chutes, providing a preset assembly channel when the milling cutter mounting part is installed through the pre-assembly sliders and the pre-assembly chutes.

[0011] Further, the threaded groove is distributed between a pair of the four pre-assembly sliders, which is used to help personnel confirm the installation orientation of the milling cutter mounting part. When the threaded groove is facing up and the milling cutter mounting part is assembled, the threaded hole will be directly above the threaded groove.

[0012] Further, the positioning groove is a concave hemispherical groove body, and the shape of the end of the pre-tightening slider in contact with it is matched with it. During the process of the pre-assembly slider moving the milling cutter mounting part towards the inner bottom end of the assembly cavity along the pre-assembly chute, after the outer end of the milling cutter mounting part contacts the pre-tightening slider, the pre-tightening slider will be squeezed, causing the pre-tightening slider to squeeze the elastic rod and move into the assembly groove until it is completely immersed in the assembly groove. When the milling cutter mounting part moves to the inner bottom end of the assembly cavity, the pre-tightening slider is reset by the elastic force of the elastic rod and snaps into the positioning groove to achieve the effect of pre-fastening. The threaded hole is also directly above the threaded groove. At this time, installing the tightening bolt will fix it to the milling cutter mounting part, and there is no need to worry about the milling cutter mounting part disengaging from the inside.

[0013] Further, the elastic rod includes a micro compression spring and a telescopic rod, and the micro compression spring is sleeved on the outer end of the telescopic rod, which can effectively increase the service life of the micro compression spring to prevent the pre-tightening slider from being unable to snap into the positioning groove for pre-fastening.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the advantages of the present utility model are as follows:

[0016] (1) This solution can achieve positioning and pre - tightening of the milling cutter during the installation process, effectively reducing the safety risks during the assembly process and ensuring the personal safety of the operator.

[0017] (2) The four pre - installed sliders are annularly arrayed at the outer end of the milling cutter installation part with the axis of the milling cutter installation part as the mid - point. The pre - installed sliders are slidably connected to the pre - installed sliding grooves, providing a preset assembly channel when the milling cutter installation part is installed through the cooperation of the pre - installed sliders and the pre - installed sliding grooves.

[0018] (3) The threaded grooves are distributed between a pair of the four pre - installed sliders, used to help personnel confirm the installation orientation of the milling cutter installation part. When the threaded grooves are facing upwards and the milling cutter installation part is assembled, the threaded holes will be directly above the threaded grooves.

[0019] (4) The positioning groove is a concave hemispherical groove body, and the shape of the end of the pre - tightening slider in contact with it is matched with it. During the process that the pre - installed slider moves the milling cutter installation part towards the bottom end of the assembly cavity along the pre - installed sliding groove, after the outer end of the milling cutter installation part contacts the pre - tightening slider, the pre - tightening slider will be extruded, causing the pre - tightening slider to extrude the elastic rod and move into the assembly groove until it is completely immersed in the assembly groove. When the milling cutter installation part moves to the bottom end of the assembly cavity, the pre - tightening slider is reset by the elastic force of the elastic rod and snaps into the positioning groove to achieve the effect of pre - tightening. The threaded holes are also directly above the threaded grooves. At this time, installing the fastening bolts fixes the milling cutter installation part, and there is no need to worry about the milling cutter installation part detaching from the inside.

[0020] (5) The elastic rod includes a micro - compression spring and a telescopic rod, and the micro - compression spring is sleeved on the outer end of the telescopic rod, which can effectively increase the service life of the micro - compression spring to prevent the pre - tightening slider from failing to snap into the positioning groove for pre - tightening. Description of the Drawings

[0021] Figure 1 is the formal cross - sectional view of the present utility model;

[0022] Figure 2 is the structural schematic diagram of the milling cutter installation part of the present utility model.

[0023] Explanation of the Reference Numerals in the Drawings:

[0024] 11. Installation block; 1101. Assembly cavity; 1102. Pre - installed sliding groove; 1103. Assembly groove; 1104. Threaded hole; 12. Connecting block; 2. Milling cutter installation part; 201. Pre - installed slider; 202. Positioning groove; 203. Threaded groove; 3. Pre - tightening slider; 4. Elastic rod; 5. Fastening bolt. Detailed Embodiment

[0025] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] Embodiment 1:

[0029] Please refer to Figure 1-2 , a clamping mechanism for a lathe tool, including a fixture body. The fixture body includes a mounting block 11 and a connecting block 12 located on its side. The connecting block 12 is connected to the lathe tool holder, which is not shown in the accompanying drawings provided in this solution. The mounting block 11 can be provided with a plurality of adjacent ones in the direction away from the connecting block 12 according to the number of tools to be assembled. An assembly cavity 1101, four preloading chutes 1102, a pair of assembly grooves 1103, and a pair of threaded holes 1104 are formed in the mounting block 11 and communicate with each other. A milling cutter mounting portion 2 is slidably connected in the assembly cavity 1101. Four preloading sliders 201 are fixedly connected to the outer end of the milling cutter mounting portion 2. A pair of positioning grooves 202 are provided at the left and right ends of the milling cutter mounting portion 2. A preloading slider 3 is slidably connected in the assembly groove 1103. Elastic rods 4 are fixedly connected between the preloading slider 3 and the inner bottom end of the assembly groove 1103. The end of the preloading slider 3 away from the elastic rod 4 abuts against the positioning groove 202. A threaded groove 203 is also formed in the milling cutter mounting portion 2. Fastening bolts 5 are installed in both the threaded hole 1104 and the threaded groove 203.

[0030] Four pre - installed sliders 201 are annularly arrayed at the outer end of the milling cutter mounting part 2 with the axis of the milling cutter mounting part 2 as the mid - point. The pre - installed sliders 201 are slidably connected to the pre - installed sliding grooves 1102, providing a preset assembly channel when the milling cutter mounting part 2 is installed through the cooperation of the pre - installed sliders 201 and the pre - installed sliding grooves 1102.

[0031] The threaded grooves 203 are distributed between a pair of the four pre - installed sliders 201, which is used to help personnel confirm the installation orientation of the milling cutter mounting part 2. When the threaded grooves 203 are facing upwards and the milling cutter mounting part 2 is assembled with 1, the threaded holes 1104 will be directly above the threaded grooves 203.

[0032] The positioning grooves 202 are concave hemispherical grooves, and the shape of the end of the pre - tightening slider 3 in contact with them is matched. When the milling cutter mounting part 2 moves towards the inner bottom end of the assembly cavity 1101 along the pre - installed sliding grooves 1102 by the pre - installed sliders 201, after the outer end of the milling cutter mounting part 2 contacts the pre - tightening slider 3, the pre - tightening slider 3 will be extruded, causing the pre - tightening slider 3 to extrude the elastic rod 4 and move into the assembly groove 1103 until it is completely immersed in the assembly groove 1103. When the milling cutter mounting part 2 moves to the inner bottom end of the assembly cavity 1101, the pre - tightening slider 3 is reset by the elastic force of the elastic rod 4 and snaps into the positioning groove 202 to achieve the effect of pre - fastening. The threaded holes 1104 are also directly above the threaded grooves 203. At this time, installing the fastening bolt 5 fixes 1 and the milling cutter mounting part 2, and there is no need to worry about the milling cutter mounting part 2 detaching from 101.

[0033] The elastic rod 4 includes a micro - compression spring and a telescopic rod, and the micro - compression spring is sleeved on the outer end of the telescopic rod, which can effectively increase the service life of the micro - compression spring to prevent the pre - tightening slider 3 from failing to snap into the positioning groove 202 for pre - fastening.

[0034] Working principle: When installing the milling cutter, first, the end with the threaded grooves 203 is facing upwards, and then the milling cutter mounting part 2 is inserted into it and moves along the pre - installed sliding grooves 1102 through the pre - installed sliders 201. When the milling cutter mounting part 2 touches the pre - tightening slider 3, the pre - tightening slider 3 is extruded into the assembly groove 1103. When the milling cutter mounting part 2 moves to the inner bottom end of the assembly cavity 1101, the pre - tightening slider 3 is also reset by the elastic force of the elastic rod 4 and snaps into the positioning groove 202 for pre - fastening. At this time, the threaded holes 1104 are directly above the threaded grooves 203. Installing the fastening bolt 5 into the threaded holes 1104 and the threaded grooves 203 fixes 1 and the milling cutter mounting part 2. Thus, the installation of the milling cutter is completed. Compared with the prior art, the present utility model can achieve positioning and pre - fastening of the milling cutter during the installation process, effectively reducing the safety risks during the assembly process and ensuring the personal safety of the operator.

[0035] The above are only the preferred specific embodiments of the present utility model; however, the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its improved concept, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims

1. A lathe tool clamping mechanism, comprising a fixture body, the fixture body comprising a mounting block (11) and a connecting block (12) located on the side thereof, the connecting block (12) being connected to the lathe tool holder, characterized in that: The mounting block (11) can be provided with a plurality of adjacent ones in a direction away from the connection block (12) according to the number of tools to be assembled. The mounting block (11) is provided with a connected assembly cavity (1101), four pre-assembled slide grooves (1102), a pair of assembly grooves (1103), and a pair of threaded holes (1104). A milling cutter mounting portion (2) is slidably connected in the assembly cavity (1101). Four pre-assembled slide blocks (201) are fixedly connected to the outer end of the milling cutter mounting portion (2). ) is provided with a pair of positioning grooves (202) at the left and right ends of the milling cutter mounting portion (2), a pre-tightening slider (3) is slidably connected in the assembly groove (1103), an elastic rod (4) is fixedly connected between the pre-tightening slider (3) and the inner bottom end of the assembly groove (1103), and the end of the pre-tightening slider (3) away from the elastic rod (4) is in contact with the positioning groove (202), and a threaded groove (203) is also provided on the milling cutter mounting portion (2), and fastening bolts (5) are installed in the threaded hole (1104) and the threaded groove (203).

2. The lathe tool clamping mechanism according to claim 1, characterized in that: The four pre-installed slide blocks (201) are distributed in a ring array at the outer end of the milling cutter mounting portion (2) with the axis of the milling cutter mounting portion (2) as the midpoint, and the pre-installed slide blocks (201) are slidably connected to the pre-installed slide grooves (1102).

3. The lathe tool clamping mechanism according to claim 1, characterized in that: The thread groove (203) is distributed between a pair of pre-installed sliding blocks (201) of the four pre-installed sliding blocks (201).

4. The lathe tool clamping mechanism according to claim 1, characterized in that: The positioning groove (202) is an inwardly concave hemispherical groove body, and the shape of the end of the pre-tightening sliding block (3) abutting against it matches it.

5. The lathe tool clamping mechanism according to claim 1, characterized in that: The elastic rod (4) comprises a micro compression spring and a telescopic rod, and the micro compression spring is sleeved on the outer end of the telescopic rod.

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