A worm gear damping anti-vibration structure for a tool holder

Abstract

The utility model discloses a worm wheel damping anti -seismic structure for tool holder, including setting in the damping mechanism of worm wheel end, the damping mechanism is by metal ring, damping part, installation cover is constituteed, the installation cover is fixed in the end of worm wheel, the damping part is set up in the surface of installation cover, the metal ring is set up in the surface of damping part and is covered on the installation cover, through the clamping mechanism of design, the metal ring of simple cover installation of original worm wheel damping anti -seismic structure and installation cover, there is metal ring with tool holder axial movement, produces radial deviation, the problem of influence anti -seismic effect, through the clamping mechanism of setting in the clamping of metal ring and installation cover, under the premise of ensuring convenient dismounting, make the position of metal ring fixed, directly limit the radial movement of metal ring, ensure that metal ring, damping part always keep coaxial with tool holder in the vibration, guarantee the anti -seismic effect of tool holder when working.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing technology, specifically relating to a worm gear damping and anti-vibration structure for tool holders. Background Technology

[0002] Tool holders are key components connecting machine tool spindles and cutting tools in CNC machining. The worm gear damping anti-vibration structure is one of the internal components of the tool holder. Through the worm gear mechanical structure and the built-in independent damper anti-vibration system, the tool holder has a spinning anti-vibration function. With good dynamic balance and precise clamping accuracy, the tool holder can improve cutting parameters, adapt to high-temperature and high-speed machining, help enterprises improve efficiency and reduce costs, extend tool life, and reduce downtime losses for tool changes. It is widely used in industries with high precision machining requirements such as aerospace, automotive manufacturing, and mold processing.

[0003] In existing worm gear damping anti-vibration structures for tool holders, the damping element and metal ring are sequentially fitted onto the mounting sleeve during assembly. However, because the metal ring and the mounting sleeve are only connected by a simple sleeve, the metal ring is prone to radial displacement due to vibration during operation. This causes the energy absorption direction of the damping sleeve to be misaligned with the vibration direction, and also results in uneven clearance between the damping sleeve and the outer metal sleeve, affecting the anti-vibration effect. To address this issue, this utility model proposes a worm gear damping anti-vibration structure for tool holders. Utility Model Content

[0004] The purpose of this utility model is to provide a worm gear damping anti-vibration structure for tool holders, so as to solve the problem mentioned in the background art that the metal ring and the mounting sleeve are unstable after being fitted together, which affects the anti-vibration effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a worm gear damping and anti-vibration structure for a tool holder, comprising a damping mechanism disposed at the end of the worm gear, the damping mechanism consisting of a metal ring, a damping element, and a mounting sleeve, the mounting sleeve being fixed to the end of the worm gear, the damping element being sleeved on the surface of the mounting sleeve, the metal ring being disposed on the surface of the damping element and sleeved on the mounting sleeve, and a locking mechanism being provided at the engagement point between the metal ring and the mounting sleeve, the locking mechanism consisting of a mounting groove, a groove assembly, and a slider, the mounting groove being opened at the bottom end of the metal ring, the groove assembly being opened on the surface of the mounting sleeve, and the slider being fixed to the inner side of the mounting groove.

[0006] Preferably, the groove assembly consists of a longitudinal groove, a transverse groove, and a silicone seat. The transverse groove is formed at the bottom end of the longitudinal groove and is located on the side surface of the mounting sleeve. The silicone seat is fixed to the inner side of the end of the transverse groove.

[0007] Preferably, the inner edge of the end of the silicone seat has an inclined structure.

[0008] Preferably, the slider has a rectangular cross-section.

[0009] Preferably, the cross-section of the longitudinal groove and the transverse groove after splicing is L-shaped.

[0010] Preferably, a support assembly is provided on the inner side of the damping member. The support assembly consists of a slot and a support ring. The slot is opened on the inner side of the damping member, and the support ring is fixed to the inner side of the slot.

[0011] Preferably, the inner wall of the support ring and the inner wall of the damping element are on the same horizontal plane.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] By designing a locking mechanism, the original worm gear damping vibration-resistant structure's metal ring and mounting sleeve were improved. The metal ring was simply fitted together, which caused radial displacement due to axial movement of the tool holder, affecting the vibration-resistant effect. By setting a locking mechanism at the engagement point between the metal ring and the mounting sleeve, the position of the metal ring is fixed while ensuring easy disassembly and assembly. This directly restricts the radial and circumferential movement of the metal ring, ensuring that the metal ring and damping components always remain coaxial with the tool holder during vibration, thus guaranteeing the vibration-resistant effect of the tool holder during operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the disassembled structure of the damping mechanism of this utility model;

[0016] Figure 3 This utility model Figure 2 Enlarged schematic diagram of region A in the image;

[0017] Figure 4 This is a schematic diagram of the metal ring structure of this utility model;

[0018] Figure 5 This utility model Figure 3 Enlarged schematic diagram of region B in the diagram;

[0019] Figure 6 This utility model Figure 4 Enlarged schematic diagram of region C in the diagram;

[0020] In the diagram: 1. Worm gear; 2. Damping mechanism; 21. Metal ring; 211. Mounting groove; 212. Groove assembly; 2121. Longitudinal groove; 2122. Transverse groove; 2123. Silicone seat; 213. Slider; 22. Damping component; 221. Slot; 222. Support ring; 23. Mounting sleeve. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1 to 6 This utility model provides a technical solution: a worm gear damping and anti-vibration structure for a tool holder, including a damping mechanism 2 disposed at the end of the worm gear 1. The damping mechanism 2 consists of a metal ring 21, a damping element 22, and a mounting sleeve 23. The mounting sleeve 23 is fixed to the end of the worm gear 1, the damping element 22 is sleeved on the surface of the mounting sleeve 23, and the metal ring 21 is disposed on the surface of the damping element 22 and sleeved on the mounting sleeve 23. A locking mechanism is provided at the engagement point between the metal ring 21 and the mounting sleeve 23. The locking mechanism consists of a mounting groove 211, a groove assembly 212, and a slider 213. The mounting groove 211 is opened at the bottom end of the metal ring 21, the groove assembly 212 is opened on the surface of the mounting sleeve 23, and the slider 213 is fixed to the inner side of the mounting groove 211. Through the designed locking mechanism, the original worm gear damping and anti-vibration structure, which was a simple sleeve installation of the metal ring 21 and the mounting sleeve 23, has the problem of the metal ring 21 moving with the tool holder. To address the issues of axial movement of the handle, radial displacement, and impact on vibration resistance, a locking mechanism is installed at the engagement point between the metal ring 21 and the mounting sleeve 23. This mechanism ensures easy disassembly and assembly while fixing the position of the metal ring 21, directly restricting its radial and circumferential movement. This ensures that the metal ring 21 and damping element 22 remain coaxial with the tool holder during vibration, guaranteeing the tool holder's vibration resistance during operation. The groove assembly 212 consists of a longitudinal groove 2121, a transverse groove 2122, and a silicone seat 2123. The transverse groove 2122 is located at the bottom of the longitudinal groove 2121 and on the side surface of the mounting sleeve 23. The silicone seat 2123 is fixed to the inner side of the end of the transverse groove 2122. The inner edge of the end of the silicone seat 2123 has an inclined structure. The cross-section of the slider 213 is rectangular, and the cross-section of the longitudinal groove 2121 and the transverse groove 2122 after splicing is L-shaped.

[0023] In this embodiment, preferably, a support assembly is provided on the inner side of the damping member 22. The support assembly consists of a slot 221 and a support ring 222. The slot 221 is opened on the inner side of the damping member 22, and the support ring 222 is fixed to the inner side of the slot 221. Through the support assembly, the overall rigidity of the damping member 22 is enhanced, the excessive deformation of the damping sleeve under vibration is suppressed, the damping sleeve maintains a stable shape under vibration environment, ensures the stability of the transmission path of shock absorption and energy absorption, and improves the shock absorption effect. The inner wall of the support ring 222 is at the same horizontal plane as the inner wall of the damping member 22.

[0024] The working principle and usage process of this utility model are as follows: During the use of this tool holder, the tool holder is first installed with the machine tool spindle. The machine tool spindle drives the tool holder to rotate at high speed, so that the tool installed on the tool holder can cut the workpiece. When the damping mechanism 2 on the tool holder needs to be assembled, the damping element 22 is sleeved on the surface of the mounting sleeve 23, and then the metal ring 21 is sleeved on the mounting sleeve 23. The top of the mounting sleeve 23 is initially inserted into the mounting groove 211 at the bottom of the metal ring 21. By rotating the metal ring 21, when the slider 213 fixed inside the mounting groove 211 is inserted into the longitudinal groove 2121, the metal ring 21 moves along the sliding trajectory of the slider 213 with the longitudinal groove 2121 and the transverse groove 2122. After the slider 213 is inserted into the transverse groove 2122, it presses the silicone seat 2123, so that the position of the metal ring 21 is fixed, and the assembly of the damping mechanism 2 is completed.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A worm gear damping and anti-vibration structure for a tool holder, comprising a damping mechanism (2) disposed at the end of the worm gear (1), characterized in that: The damping mechanism (2) consists of a metal ring (21), a damping element (22), and a mounting sleeve (23). The mounting sleeve (23) is fixed to the end of the worm gear (1). The damping element (22) is sleeved on the surface of the mounting sleeve (23). The metal ring (21) is disposed on the surface of the damping element (22) and sleeved on the mounting sleeve (23). A locking mechanism is provided at the engagement point between the metal ring (21) and the mounting sleeve (23). The locking mechanism consists of a mounting groove (211), a groove assembly (212), and a slider (213). The mounting groove (211) is opened at the bottom end of the metal ring (21). The groove assembly (212) is opened on the surface of the mounting sleeve (23). The slider (213) is fixed to the inner side of the mounting groove (211).

2. The worm gear damping and anti-vibration structure for a tool holder according to claim 1, characterized in that: The groove assembly (212) consists of a longitudinal groove (2121), a transverse groove (2122), and a silicone seat (2123). The transverse groove (2122) is opened at the bottom end of the longitudinal groove (2121) and located on the side surface of the mounting sleeve (23). The silicone seat (2123) is fixed to the inner side of the end of the transverse groove (2122).

3. The worm gear damping and anti-vibration structure for a tool holder according to claim 2, characterized in that: The inner edge of the end of the silicone seat (2123) has an inclined structure.

4. The worm gear damping and anti-vibration structure for a tool holder according to claim 1, characterized in that: The slider (213) has a rectangular cross-section.

5. The worm gear damping and anti-vibration structure for a tool holder according to claim 2, characterized in that: The cross-section of the longitudinal groove (2121) and the transverse groove (2122) after being spliced ​​together has an L-shaped structure.

6. The worm gear damping and anti-vibration structure for a tool holder according to claim 1, characterized in that: The inner side of the damping member (22) is provided with a support assembly, which consists of a slot (221) and a support ring (222). The slot (221) is opened on the inner side of the damping member (22), and the support ring (222) is fixed to the inner side of the slot (221).

7. The worm gear damping and anti-vibration structure for a tool holder according to claim 6, characterized in that: The inner wall of the support ring (222) is at the same horizontal plane as the inner wall of the damping element (22).

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