Anti-vibration cutter bar for cutter

By setting a combination of positioning clamps and stabilizing rods on the tool holder, the problem of tool holder swaying during operation is solved, the stability and shock resistance are improved, and the cost is reduced.

CN224168775UActive Publication Date: 2026-04-28SHANGHAI FONHAE PRECISION TOOLS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI FONHAE PRECISION TOOLS CO LTD
Filing Date
2025-05-21
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing tool holders are prone to wobbling during extension operations, which leads to a decrease in workpiece precision and increases industrial costs.

Method used

A structure including a tool holder, first and second tool bars, a fixed cylinder, the second tool bar and the cutting tool is designed. By providing two positioning hoops on the tool holder and assembling a fixing screw and nut, the support diameter of the second tool bar is increased. The stability is improved by utilizing the buffering effect of the stabilizing rod and the rubber ring.

Benefits of technology

This achieves anti-vibration properties for the tool holder, improves stability during machining, reduces tool wobble, protects the tool, and saves industrial costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224168775U_ABST
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Abstract

The utility model discloses an anti-vibration cutter bar for a cutter, which comprises a cutter handle, a first cutter bar, a second cutter bar and the cutter, and is characterized in that the first cutter bar is fixed at one end of the cutter handle, the cutter is arranged at one end of the second cutter bar, and a fixed cylinder is fixedly connected in the first cutter bar; one end of the second cutter bar penetrates through the second cutter bar and is inserted into the fixing cylinder, the outer side of the first cutter bar is sleeved with two positioning hoops, the two ends of the two positioning hoops are fixedly connected with assembling blocks, inserting holes are formed in the assembling blocks, fixing screw rods are inserted into the inserting holes, one ends of the fixing screw rods are in threaded connection with nuts in a sleeving mode, and the other ends of the fixing screw rods are in threaded connection with the nuts. According to the tool bar damping device, the powerful damping effect on the tool bar is achieved, a tool can be well protected in the machining process, frequent replacement is not needed, and the industrial cost is saved.
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Description

Technical Field

[0001] This utility model relates to the field of tool holders and related products, specifically an anti-vibration tool holder for cutting tools. Background Technology

[0002] There are many types of mechanical equipment. When mechanical equipment is running, some of its components or even the equipment itself can perform different forms of mechanical motion. Mechanical equipment is generally composed of a drive device, a speed change device, a transmission device, a working device, a braking device, a protective device, a lubrication system, a cooling system, and other parts. Mechanical equipment is widely used in various fields, and drilling and opening machinery is one of them. In drilling and opening machinery, the tool holder is an indispensable component, and there are many types of tool holders.

[0003] However, the existing tool holders lack external stabilizing components, which can easily cause wobbling during tool holder extension operations, leading to a significant decrease in workpiece precision, and in severe cases, even scrapping the workpiece. This increases industrial costs and is detrimental to practical applications. Utility Model Content

[0004] The purpose of this invention is to provide an anti-vibration tool holder for cutting tools to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vibration-resistant tool holder for cutting tools, comprising a tool handle, a first tool holder, a second tool holder, and a cutting tool, characterized in that: the first tool holder is fixed to one end of the tool handle, the cutting tool is installed at one end of the second tool holder, a fixed cylinder is fixedly connected inside the first tool holder, one end of the second tool holder passes through the second tool holder and is inserted into the fixed cylinder, two positioning hoops are sleeved on the outer side of the first tool holder, and assembly blocks are fixedly connected to both ends of the two positioning hoops, each assembly block has an insertion hole, a fixing screw is inserted into the insertion hole, a nut is threaded onto one end of the fixing screw, a connecting block is fixedly connected to one side of the positioning hoop, a stabilizing rod is fixedly connected to the connecting block, a positioning block is hinged to one end of the stabilizing rod, the positioning block is fixedly connected to the outer wall of the second tool holder, a nut and a stop block are provided on the first tool holder, the stop block is fixedly sleeved on the first tool holder, and the nut and the stop block are respectively located on both sides of the positioning hoop.

[0006] Preferably, the outer side of the first tool holder is provided with external threads, and the nut and the first tool holder are threadedly connected.

[0007] Preferably, a rubber ring is provided between the nut, the stop block and the positioning hoop, and the rubber ring is sleeved on the first tool holder.

[0008] Preferably, the nut is a hexagonal nut.

[0009] Preferably, the stabilizing rod is inclined.

[0010] Preferably, the end of the first cutter bar is provided with a through-hole communicating with the fixed cylinder, and the second cutter bar is inserted into the through-hole.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This cutting tool uses a vibration-damping tool holder. The second tool holder is inserted into the fixed cylinder inside the first tool holder. Then, a stabilizing rod rotates around a positioning block to secure a positioning clamp onto the first tool holder. Two positioning clamps are then fixed together by a screw and nut. Rotating the nut moves the first tool holder, gradually pushing the clamp against the positioning block for fixation. Vibrations during tool operation are transmitted to the second tool holder. Stabilizing rods on both sides of the second tool holder increase its support diameter, enhancing stability. This invention provides strong vibration damping for the tool holder, effectively protecting the tool during processing and eliminating the need for frequent replacements, thus saving industrial costs. Attached Figure Description

[0013] Fig. 1 This is a schematic diagram of the structure of an anti-vibration tool holder for cutting tools according to the present invention;

[0014] Fig. 2 This is a schematic diagram of the first tool holder structure of an anti-vibration tool holder for cutting tools according to this utility model.

[0015] In the diagram: 1. Tool holder; 2. First tool bar; 3. Second tool bar; 4. Tool; 5. Fixing sleeve; 6. Positioning clamp; 7. Connecting block; 8. Stabilizing rod; 9. Positioning block; 10. Nut; 11. Stop block; 12. Rubber ring; 13. Assembly block; 14. Fixing screw; 15. Nut. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] Please see Figs. 1-2 This utility model provides an embodiment of an anti-vibration tool holder for a cutting tool 4, comprising a tool holder 1, a first tool holder 2, a second tool holder 3, and a cutting tool 4. The first tool holder 2 is fixed to one end of the tool holder 1, and the cutting tool 4 is installed at one end of the second tool holder 3. A fixing cylinder 5 is fixedly connected inside the first tool holder 2. One end of the second tool holder 3 passes through the second tool holder 3 and is inserted into the fixing cylinder 5. Two positioning hoops 6 are fitted on the outer side of the first tool holder 2. Assembly blocks 13 are fixedly connected to both ends of the two positioning hoops 6. The assembly blocks 13 have insertion holes, into which fixing screws 14 are inserted. A nut 15 is threaded onto one end of the fixing screw 14. A connecting block 7 is fixedly connected to one side of the positioning hoops 6. A stabilizing rod 8 is fixedly connected to the connecting block 7. A positioning block 9 is hinged to one end of the stabilizing rod 8. Block 9 is fixedly connected to the outer wall of the second cutter bar 3. The first cutter bar 2 is provided with a nut 10 and a stop block 11. The stop block 11 is fixedly sleeved on the first cutter bar 2. The nut 10 and the stop block 11 are respectively located on both sides of the positioning hoop 6. Specifically, the second cutter bar 3 is inserted into the fixed cylinder 5 in the first cutter bar 2. Then, the stabilizing rod 8 is flipped around the positioning block 9 to lock the positioning hoop 6 on the first cutter bar 2. Then, the two positioning hoops 6 are fixedly assembled by the fixing screw 14 and the nut 10. By rotating the nut 10, the nut 10 moves on the first cutter bar 2. At this time, the nut 10 gradually pushes the fixing hoop to press against the positioning block 9 to achieve fixation. The vibration of the cutter 4 during operation is transmitted to the second cutter bar 3. The stabilizing rods 8 on both sides of the second cutter bar 3 increase the support diameter of the second cutter bar 3 and increase stability.

[0020] In this embodiment, the outer side of the first cutter bar 2 is provided with external threads, and the nut 10 is threadedly connected to the first cutter bar 2; a rubber ring 12 is provided between the nut 10, the stop block 11 and the positioning hoop 6, and the rubber ring 12 is sleeved on the first cutter bar 2 to increase the buffering force when pressed; the nut 10 is a hexagonal nut 10; the stabilizing rod 8 is inclined to increase stability; the end of the first cutter bar 2 is provided with a through hole communicating with the fixed cylinder 5, and the second cutter bar 3 is inserted into the through hole.

[0021] The working principle of the anti-vibration tool bar of the tool 4 is described in detail below: First, the second tool bar 3 is inserted into the fixed cylinder 5 in the first tool bar 2. Then, the stabilizing rod 8 is flipped around the positioning block 9 to lock the positioning hoop 6 onto the first tool bar 2. Then, the two positioning hoops 6 are fixedly assembled by the fixing screw 14 and the nut 10. By rotating the nut 10, the tool bar 2 moves. At this time, the nut 10 gradually pushes the fixing hoop to press against the positioning block 9 to achieve fixation. The vibration of the tool 4 during operation is transmitted to the second tool bar 3. The stabilizing rods 8 on both sides of the second tool bar 3 increase the support diameter of the second tool bar 3 and increase stability.

[0022] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A vibration-resistant tool holder for a cutting tool (4), comprising a tool holder (1), a first tool holder (2), a second tool holder (3), and a cutting tool (4), characterized in that: The first tool holder (2) is fixed to one end of the tool holder (1), and the tool (4) is installed at one end of the second tool holder (3). A fixing cylinder (5) is fixedly connected inside the first tool holder (2). One end of the second tool holder (3) passes through the second tool holder (3) and is inserted into the fixing cylinder (5). Two positioning hoops (6) are sleeved on the outside of the first tool holder (2). Assembly blocks (13) are fixedly connected to both ends of the two positioning hoops (6). The assembly blocks (13) are provided with insertion holes. A fixing screw (14) is inserted into the insertion holes. (14) has a nut (15) threaded onto one end. A connecting block (7) is fixedly connected to one side of the positioning hoop (6). A stabilizing rod (8) is fixedly connected to the connecting block (7). A positioning block (9) is hinged to one end of the stabilizing rod (8). The positioning block (9) is fixedly connected to the outer wall of the second cutter bar (3). A nut (10) and a stop block (11) are provided on the first cutter bar (2). The stop block (11) is fixedly sleeved on the first cutter bar (2). The nut (10) and the stop block (11) are respectively located on both sides of the positioning hoop (6).

2. The anti-vibration tool holder for a cutting tool (4) according to claim 1, characterized in that: The outer side of the first tool bar (2) is provided with external threads, and the nut (10) and the first tool bar (2) are threaded together.

3. The anti-vibration tool holder for a cutting tool (4) according to claim 1, characterized in that: A rubber ring (12) is provided between the nut (10), the stop block (11) and the positioning hoop (6), and the rubber ring (12) is sleeved on the first cutter bar (2).

4. The anti-vibration tool holder for a cutting tool (4) according to claim 1, characterized in that: The nut (10) is a hexagonal nut (10).

5. The anti-vibration tool holder for a cutting tool (4) according to claim 1, characterized in that: The stabilizing rod (8) is set at an angle.

6. The anti-vibration tool holder for a cutting tool (4) according to claim 1, characterized in that: The end of the first cutter bar (2) is provided with a through-hole that communicates with the fixed cylinder (5), and the second cutter bar (3) is inserted into the through-hole.