An adjustable tool locking device

CN224615728UActive Publication Date: 2026-08-11KUNSHAN BEIJU MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-23
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

[0002]在加工刀具技术领域中,常规的刀具锁紧装置通常只能夹持特定尺寸的卡圈,导致其通用性较差,无法适应不同直径的刀具固定需求

Benefits of technology

该可调式刀具锁紧装置通过将刀具放入圆形开孔中,转动双头螺杆让两侧支撑块插入卡圈中进行固定,通过控制两处支撑块之间的距离,对于不同直径卡圈的刀具均能进行固定,从而提升装置能够安装的刀具尺寸,适用范围得到提升。

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Abstract

This utility model discloses an adjustable tool locking device, belonging to the field of machining tool technology. The utility model includes a tool and a base. A circular opening is provided at the center of the base, and clamping grooves are provided on both sides of the circular opening. A support block is provided inside the clamping groove. An extension arm is fixedly connected to the end of the support block. A threaded sleeve is horizontally installed near the top of the extension arm, and a double-ended screw is rotatably installed inside the threaded sleeve. This utility model controls the distance between the two support blocks to clamp the tool by inserting a retaining ring. It can fix tools with retaining rings of different diameters, thereby increasing the size of tools that can be installed and expanding its applicability.
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Description

Technical Field

[0001] This utility model belongs to the field of machining tool technology, specifically, it relates to an adjustable tool locking device. Background Technology

[0002] In the field of machining tool technology, conventional tool locking devices typically can only clamp clasps of specific sizes, resulting in poor versatility and an inability to adapt to the fixing requirements of tools with different diameters. This limits the flexibility and efficiency of equipment in practical applications, and increases the time and cost of tool replacement and adjustment. Therefore, there is an urgent need for an adjustable tool locking device with a reasonable structure, wide applicability, and easy operation to address the shortcomings of existing technologies. In view of this, this utility model is hereby proposed. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an adjustable tool locking device, which solves the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows: An adjustable tool locking device includes a tool and a base. The tool has a retaining ring at its center, the base has a circular opening at its center, clamping grooves are formed on both sides of the circular opening, a support block is provided inside the clamping grooves, an extension arm is fixedly connected to the end of the support block, a threaded sleeve is horizontally installed near the top of the extension arm, and a double-ended screw is rotatably installed inside the threaded sleeve.

[0005] Optionally, a mounting plate is provided on the back of the base near the top, a central seat is provided on the top of the mounting plate, and a bearing is installed inside the central seat.

[0006] Optionally, a fixing groove is provided on one side of the clamping inner groove, a pressure rod is provided inside the fixing groove, a convex ring is fixedly connected to the surface of the pressure rod, an outer frame is sleeved on the surface of the pressure rod, a pressure rod spring is sleeved on the surface of the pressure rod between the convex ring and the outer frame, and fixing strips are installed on the side of the base at the upper and lower positions of the fixing groove.

[0007] Optionally, the base has a side groove vertically opened below the clamping inner groove, a vertical rod is vertically installed inside the side groove, a support spring is sleeved on the surface of the vertical rod, and a collar is sleeved near the bottom of the cutter.

[0008] Optionally, the base has a viewing window on its front side.

[0009] Optionally, the base is shaped like a zigzag, with screws vertically mounted on both sides.

[0010] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time: This adjustable tool locking device secures the tool by placing it into a circular opening and rotating a double-ended screw to insert the support blocks on both sides into the retaining ring. By controlling the distance between the two support blocks, tools with retaining rings of different diameters can be secured, thereby increasing the size of tools that can be installed and expanding its applicability.

[0011] This adjustable tool locking device allows the base to be installed at any position on the worktable via screws on both sides. The installation and adjustment of the device are simpler. The collar helps support the tool, and the side pressure rod pushes the support block to make the tool more stable and can support the tool for a long time, making the device more durable.

[0012] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0013] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings: Figure 1 This is a front view of the present utility model; Figure 2 This is a schematic diagram of the back of the present invention; Figure 3 This is a cross-sectional view of the clamping inner groove of this utility model; Figure 4 This is a schematic diagram of the cutting tool of this utility model.

[0014] The attached diagram lists the components represented by each number as follows: 1. Cutting tool; 101. Snap ring; 2. Base; 201. Circular opening; 202. Clamping groove; 203. Fixing groove; 204. Viewing window; 205. Side groove; 3. Support block; 301. Extension arm; 302. Screw sleeve; 4. Double-ended screw; 401. Center seat; 402. Bearing; 403. Mounting plate; 5. Pressure rod; 501. Convex ring; 502. Pressure rod spring; 503. Outer frame; 504. Fixing strip; 6. Collar; 601. Vertical rod; 602. Support spring.

[0015] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings.

[0017] Please see Figure 1-4 As shown, this embodiment provides an adjustable tool locking device, including: a tool 1 and a base 2.

[0018] like Figure 1-4 As shown, in this embodiment, a retaining ring 101 is provided at the center of the tool 1, and a circular opening 201 is provided at the center of the base 2. Clamping grooves 202 are provided on both sides of the circular opening 201. A support block 3 is provided inside the clamping groove 202, and an extension arm 301 is fixedly connected to the end of the support block 3. A threaded sleeve 302 is horizontally installed near the top of the extension arm 301, and a double-ended screw 4 is rotatably installed inside the threaded sleeve 302. Conventionally, the tool 1 is inserted into the chuck in the tool holder by the top milling cutter, and the tool sleeve is then tightened. The tool 1 is generally fixed by clamping the retaining ring 101 in the middle. The retaining ring 101 is larger at both ends and smaller in the middle, facilitating the insertion and fixing of the tool in the middle position. The clamping groove 202 on the base 2 connects to the circular opening 201, clamping... The inner groove 202 is equipped with a support block 3 that can be inserted into the retaining ring 101. At the same time, the inner groove 202 is connected to the back of the base 2, so that the extension arm 301 on the support block 3 extends out from the clamping inner groove 202, extends upward on the back and is fitted with a threaded sleeve 302, which engages with the double-ended screw 4 on the back. The clamping inner groove 202 is symmetrical on the left and right of the base 2. Similarly, the support block 3 and the extension arm 301 are also symmetrical on the left and right, so that the double-ended screw 4 passes through the threaded sleeves 302 on the two extension arms 301 at the same time. Since the two ends of the thread on the double-ended screw 302 are opposite in direction, when rotating, the two threaded sleeves 302 drive the two support blocks 3 to move in opposite directions through the threaded engagement, moving closer to clamp the tool 1 and moving further away to release, thereby fixing the tool 1.

[0019] like Figure 1-3 As shown, in this embodiment, a mounting plate 403 is provided on the back of the base 2 near the top, and a center seat 402 is provided on the top of the mounting plate 403. A bearing 402 is installed inside the center seat 402. The mounting plate 403 is a right-angle plate, which is fixed to the back of the base 2 by screws. The center seat 402 is placed on the top. The unthreaded part of the double-ended screw 4 passes through the center seat 402 and fits against the center bearing 402, so that the double-ended screw 4 only rotates and does not move when rotating, ensuring the stability of the movement of the support blocks 3 at both ends.

[0020] like Figure 1-3As shown, in this embodiment, a fixing groove 203 is provided on one side of the clamping inner groove 202. A pressure rod 5 is provided inside the fixing groove 203. A protruding ring 501 is fixedly connected to the surface of the pressure rod 5. An outer frame 503 is sleeved on the surface of the pressure rod 5. A pressure rod spring 502 is sleeved on the surface of the pressure rod 5 between the protruding ring 501 and the outer frame 503. Fixing strips 504 are installed on the side of the base 2 at the top and bottom of the fixing groove 203. The fixing groove 203 is only opened on one side of the clamping inner groove 202, connecting the side of the base 2 and the clamping inner groove 202, so that the pressure rod 5 can extend into the clamping inner groove 202 and abut against the support block 3. The outer frame 503 sleeved on the pressure rod 5 is fastened by the fixing strips 504 installed on the side of the base 2 to prevent it from falling off. The outer frame 503 can move to fit the opening of the fixing groove 203 through the restriction of the fixing strip 504, so that it can be supported against the support block 3 or moved to the edge of the fixing groove 203 without contacting the support block 3. At this time, it is convenient to adjust the position of the support block 3. The pressure rod 5 is pushed inward by one end of the pressure rod spring 502 against the inner side of the outer frame 503 and the other end against the convex ring 501, so that it continuously applies a force against the retaining ring 101 to the support block 3. This prevents the tool 1 from being placed for a long time. The movement of the support block 3 causes the double screw 4 to reverse, which would cause the clamping part to loosen. When it is necessary to remove the tool 1, simply pull the pressure rod 5 outward to compress the pressure rod spring 502 and move the pressure rod 5 to the edge of the fixing groove 203 without contacting the support block 3.

[0021] like Figure 1 , 2 As shown, in this embodiment, the base 2 has a side groove 205 vertically opened below the clamping inner groove 202. A vertical rod 601 is vertically installed inside the side groove 205. A support spring 602 is sleeved on the surface of the vertical rod 601. A collar 6 is sleeved near the bottom of the tool 1. When the tool 1 is fixed, the bottom retaining ring 101 of the tool handle and the bottom pull stud are usually conical. Its inclined surface contacts the collar 6. The two ends of the collar 6 extend to the side grooves 205 on both sides and the vertical rod 601 passes through it. The support spring 602 on the vertical rod 601 is compressed downward until the support block 3 clamps the retaining ring 101 to fix the tool 1. The collar 6 provides partial support through the reaction force of the support spring 602, reducing the pressure on the support block 3 and making the clamping more stable.

[0022] like Figure 1 As shown, the base 2 in this embodiment has a viewing window 204 on the front; wherein, the viewing window 204 is provided with transparent glass, so that the operator can observe the position of the internal retaining ring 101 when placing the knife 1, making it easier to insert the support block 3 into the retaining ring 101, and making the overall operation more convenient.

[0023] like Figure 1 , 2As shown, the base 2 in this embodiment is shaped like a "Z" and screws are installed vertically on both sides; the installation of the entire base 2 by fixing it with screws is relatively simple and convenient, making the base 2 suitable for installation anywhere to place and fix the tool 1.

[0024] Working principle: During use, first fix the base 2, then place the tool 1 into the circular opening 201 of the base 2. The bottom of the tool shank is fitted onto the collar 6. Observe the position of the retaining ring 101 through the viewing window 204. Rotate the double-ended screw 4 to drive the two side sleeves 302 to move, thereby allowing the support block 3 to be inserted into the retaining ring 101 for clamping and fixing. After fixing, move the pressure rod 5 until its front end abuts against the support block 3. The pressure rod 5 continuously presses the support block 3 under the action of the pressure rod spring 502 to prevent the support block 3 from loosening. The collar 6 pushes the tool 1 upward under the action of the support spring 602 to provide auxiliary support and enhance stability. By adjusting the double-ended screw 4, it can accommodate retaining rings 101 of different diameters to achieve fixing of tools of various sizes.

[0025] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. An adjustable tool locking device, comprising: The tool (1) and the base (2) are characterized in that a retaining ring (101) is provided at the center of the tool (1), a circular opening (201) is provided at the center of the base (2), a clamping groove (202) is provided on both sides of the circular opening (201), a support block (3) is provided inside the clamping groove (202), an extension arm (301) is fixedly connected to the end of the support block (3), a threaded sleeve (302) is horizontally installed near the top of the extension arm (301), and a double-headed screw (4) is rotatably installed inside the threaded sleeve (302).

2. The adjustable tool locking device according to claim 1, characterized in that, The base (2) has a mounting plate (403) on its back near the top, and a center seat (401) is provided on the top of the mounting plate (403). A bearing (402) is installed inside the center seat (401).

3. The adjustable tool locking device according to claim 2, characterized in that, A fixing groove (203) is provided on one side of the clamping inner groove (202). A pressure rod (5) is provided inside the fixing groove (203). A convex ring (501) is fixedly connected to the surface of the pressure rod (5). An outer frame (503) is sleeved on the surface of the pressure rod (5). A pressure rod spring (502) is sleeved on the surface of the pressure rod (5) between the convex ring (501) and the outer frame (503). Fixing strips (504) are installed on the side of the base (2) at two locations above and below the fixing groove (203).

4. An adjustable tool locking device according to claim 3, characterized in that, The base (2) has a side groove (205) vertically below the clamping inner groove (202). A vertical rod (601) is vertically installed inside the side groove (205). A support spring (602) is sleeved on the surface of the vertical rod (601). A collar (6) is sleeved near the bottom of the cutter (1).

5. An adjustable tool locking device according to claim 1, characterized in that, The base (2) has a viewing window (204) on its front.

6. An adjustable tool locking device according to claim 1, characterized in that, The base (2) is shaped like a zigzag, with screws installed vertically on both sides.