power knife seat

Abstract

The utility model discloses power tool holder, including the tool holder body, the tool holder body is provided with the cutter main body rotating below it, and the inside vertical setting of tool holder body is with the cutter main body transmission connection cutter shaft, and the rotor core of supporting cutter shaft is provided with on the tool holder body top, and the transmission sleeve of rotor core top is provided with the transmission sleeve that drives cutter shaft rotates in the tool holder body and takes along the cutter main body and rotates below the tool holder body, can drive cutter shaft and take along the cutter main body and rotate in the tool holder body bottom end when rotating transmission sleeve, and when cutter shaft drives cutter main body and rotates in the tool holder body bottom end, rotates and supports through the rotor core, makes when cutter shaft drives cutter main body and rotates the stability.

Description

Technical Field

[0001] This utility model relates to the field of tool holders, and in particular to power tool holders. Background Technology

[0002] A powered tool holder refers to a tool holder mounted on a powered tool turret and driven by a servo motor. The working principle of a powered tool holder is as follows: the output shaft of an external motor is coaxially fixedly connected to a transmission shaft. Then, an external tool head is coaxially fixedly mounted on a tool head mounting shaft. The output shaft of the drive motor rotates, which in turn drives the transmission shaft. The transmission shaft, through the meshing of a first bevel gear and a second bevel gear, drives the tool head mounting shaft to rotate, thereby causing the tool head to rotate and machine the object. During transmission, bevel gears, due to their tooth profile and meshing method, are prone to generating three-dimensional orthogonal forces in space. This uneven force distribution leads to localized stress concentration in the gears, accelerating wear and fatigue damage. This uneven force distribution is particularly pronounced under poor lubrication conditions or large load fluctuations, severely affecting the service life of the bevel gears. Therefore, the powered tool holder was proposed. Utility Model Content

[0003] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0004] A powered tool holder includes a tool holder body, a tool body rotating below the tool holder body, a tool shaft vertically connected to the tool body for transmission inside the tool holder body, a rotor core supporting the tool shaft above the tool holder body, and a transmission sleeve above the rotor core for driving the tool shaft to rotate inside the tool holder body and causing the tool body to rotate below the tool holder body.

[0005] Preferably, a second bearing sleeve is provided between the rotor core and the tool holder body, and a first bearing sleeve is provided above the second bearing sleeve and communicating with it. The second bearing sleeve is laterally located at the top end inside the tool holder body, and the first bearing sleeve is laterally located at the bottom end inside the rotor core. The tool shaft passes through the second bearing sleeve and the first bearing sleeve, and the tool shaft rotates inside the second bearing sleeve and the first bearing sleeve.

[0006] Preferably, a second tapered roller bearing is laterally arranged inside the second bearing sleeve, and the cutter shaft passes through the second tapered roller bearing and rotates at the middle position of the second tapered roller bearing. A third thin-walled angular contact bearing is laterally arranged at both the upper and lower ends inside the first bearing sleeve, and the cutter shaft passes through the third thin-walled angular contact bearing and rotates at the middle position of the third thin-walled angular contact bearing. The third thin-walled angular contact bearing inside the first bearing sleeve and the second tapered roller bearing inside the second bearing sleeve make the rotation of the cutter shaft inside the cutter holder body more stable.

[0007] Preferably, a first tapered roller bearing is disposed above the first bearing sleeve, and a second thin-walled angular contact bearing is disposed above the first tapered roller bearing. The first tapered roller bearing and the second thin-walled angular contact bearing are located inside the rotor core, and the cutter shaft passes through the first tapered roller bearing and the second thin-walled angular contact bearing and rotates at the middle position between the first tapered roller bearing and the second thin-walled angular contact bearing.

[0008] Preferably, a first deep groove ball bearing is provided at the upper part of the rotor core, and a first thin-walled angular contact bearing is provided horizontally above the first deep groove ball bearing. The first thin-walled angular contact bearing is horizontally mounted inside the rotor core, and the cutter shaft passes through the first deep groove ball bearing and the first thin-walled angular contact bearing and rotates at the middle position of the first deep groove ball bearing and the first thin-walled angular contact bearing.

[0009] Preferably, a limiting sleeve is provided between the cutter shaft and the cutter body, and the cutter body is vertically inserted into the bottom end of the limiting sleeve, and the limiting sleeve is vertically inserted into the lower part of the cutter shaft, and a locking ring is fitted on the outside of the limiting sleeve cover.

[0010] Preferably, an outer spacer is provided between the cutter shaft and the cutter holder body, and the outer spacer is fitted around the bottom end of the cutter shaft. The outer spacer is located laterally at the bottom end of the cutter holder body, and the cutter shaft rotates at the middle position of the outer spacer.

[0011] Compared with the prior art, the beneficial effects of this utility model are: when the transmission sleeve is rotated, the cutter shaft and the cutter body can be driven to rotate at the bottom end of the cutter holder body, and when the cutter shaft drives the cutter body to rotate at the bottom end of the cutter holder body, the rotor core provides rotational support, thereby improving the stability when the cutter shaft drives the cutter body to rotate.

[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of the power tool holder;

[0015] Figure 2 This is another structural schematic diagram of a power tool holder;

[0016] Figure 3 This is another structural schematic diagram of a power tool holder;

[0017] Figure 4 This is a schematic diagram of the internal structure of the power tool holder;

[0018] Figure 5 This is a schematic diagram of another internal structure of the power tool holder.

[0019] The figure shows: 1. Tool holder body, 2. Rotor core, 3. Transmission sleeve, 4. Outer spacer, 5. Tool body, 6. Locking ring, 7. Limiting sleeve, 8. Tool shaft, 9. First thin-walled angular contact bearing, 10. First deep groove ball bearing, 11. Second thin-walled angular contact bearing, 12. First tapered roller bearing, 13. Third thin-walled angular contact bearing, 14. First bearing sleeve, 15. Second bearing sleeve, 16. Second tapered roller bearing. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-5 In this embodiment of the utility model, the power tool holder includes a tool holder body 1, a tool body 5 rotating below the tool holder body 1, a tool shaft 8 vertically connected to the tool body 5 inside the tool holder body 1, a rotor core 2 supporting the tool shaft 8 above the tool holder body 1, and a transmission sleeve 3 above the rotor core 2 that drives the tool shaft 8 to rotate inside the tool holder body 1 and drives the tool body 5 to rotate below the tool holder body 1. Thus, by rotating the transmission sleeve 3, the tool shaft 8 and the tool body 5 can be driven to rotate at the bottom end of the tool holder body 1. When the tool shaft 8 drives the tool body 5 to rotate at the bottom end of the tool holder body 1, the rotor core 2 provides rotational support, thereby ensuring stability when the tool shaft 8 drives the tool body 5 to rotate.

[0022] A second bearing sleeve 15 is provided between the rotor core 2 and the tool holder body 1, and a first bearing sleeve 14 is provided above the second bearing sleeve 15 and communicating with it. The second bearing sleeve 15 is laterally located at the top end inside the tool holder body 1, and the first bearing sleeve 14 is laterally located at the bottom end inside the rotor core 2. The tool shaft 8 passes through the second bearing sleeve 15 and the first bearing sleeve 14, and the tool shaft 8 rotates inside the second bearing sleeve 15 and the first bearing sleeve 14.

[0023] The second bearing sleeve 15 has a second tapered roller bearing 16 arranged laterally inside, and the cutter shaft 8 passes through the second tapered roller bearing 16. The cutter shaft 8 rotates at the middle position of the second tapered roller bearing 16. The first bearing sleeve 14 has a third thin-walled angular contact bearing 13 arranged laterally at both the upper and lower ends inside, and the cutter shaft 8 passes through the third thin-walled angular contact bearing 13. The cutter shaft 8 rotates at the middle position of the third thin-walled angular contact bearing 13. The third thin-walled angular contact bearing 13 inside the first bearing sleeve 14 and the second tapered roller bearing 16 inside the second bearing sleeve 15 make the rotation of the cutter shaft 8 inside the cutter holder body 1 more stable.

[0024] A first tapered roller bearing 12 is disposed above the first bearing sleeve 14, and a second thin-walled angular contact bearing 11 is disposed above the first tapered roller bearing 12. The first tapered roller bearing 12 and the second thin-walled angular contact bearing 11 are located inside the rotor core 2, and the cutter shaft 8 passes through the first tapered roller bearing 12 and the second thin-walled angular contact bearing 11 and rotates at the middle position of the first tapered roller bearing 12 and the second thin-walled angular contact bearing 11.

[0025] A first deep groove ball bearing 10 is provided at the upper part of the rotor core 2, and a first thin-walled angular contact bearing 9 is provided horizontally above the first deep groove ball bearing 10. The first thin-walled angular contact bearing 9 is horizontally mounted inside the rotor core 2, and the cutter shaft 8 passes through the first deep groove ball bearing 10 and the first thin-walled angular contact bearing 9 and rotates at the middle position of the first deep groove ball bearing 10 and the first thin-walled angular contact bearing 9. As a result, when the transmission sleeve 3 drives the cutter shaft 8 to rotate, the first deep groove ball bearing 10 and the first thin-walled angular contact bearing 9 make the rotation of the cutter shaft 8 inside the rotor core 2 more stable.

[0026] A limiting sleeve 7 is provided between the cutter shaft 8 and the cutter body 5. The cutter body 5 is vertically inserted into the bottom end of the limiting sleeve 7, and the limiting sleeve 7 is vertically inserted into the lower part of the cutter shaft 8. A locking ring 6 is fitted on the outside of the limiting sleeve 7. When the cutter body 5 is vertically inserted into the lower part of the limiting sleeve 7 and the limiting sleeve 7 is inserted into the bottom end of the cutter shaft 8, the limiting sleeve 7 is closed in the middle by turning the locking ring 6 and engages the cutter body 5 inserted in the middle position. When the cutter shaft 8 rotates, the cutter body 5 can rotate along with it. The cutter body 5 and the cutter shaft 8 can be disassembled and assembled through the cooperation between the locking ring 6 and the limiting sleeve 7.

[0027] An outer spacer 4 is provided between the cutter shaft 8 and the tool holder body 1. The outer spacer 4 is fitted onto the outside of the bottom end of the cutter shaft 8. The outer spacer 4 is located laterally at the bottom end of the tool holder body 1, and the cutter shaft 8 rotates at the middle position of the outer spacer 4, thereby ensuring that the cutter shaft 8 and the tool body 5 remain stable when rotating below the tool holder body 1.

[0028] 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 exemplary 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.

Claims

1. A powered tool holder, comprising a tool holder body, characterized in that, The tool holder body is provided with a tool body that rotates below it, and a tool shaft that is vertically connected to the tool body for transmission is provided inside the tool holder body. A rotor core that supports the tool shaft is provided above the tool holder body, and a transmission sleeve that drives the tool shaft to rotate inside the tool holder body and causes the tool body to rotate below the tool holder body is provided above the rotor core.

2. The power tool holder according to claim 1, characterized in that, A second bearing sleeve is provided between the rotor core and the tool holder body, and a first bearing sleeve is provided above the second bearing sleeve and communicating with it. The second bearing sleeve is laterally located at the top end inside the tool holder body, and the first bearing sleeve is laterally located at the bottom end inside the rotor core. The tool shaft passes through the second bearing sleeve and the first bearing sleeve, and the tool shaft rotates inside the second bearing sleeve and the first bearing sleeve.

3. The power tool holder according to claim 2, characterized in that, The second bearing sleeve has a second tapered roller bearing arranged laterally inside, and the cutter shaft passes through the second tapered roller bearing and rotates at the middle position of the second tapered roller bearing. The first bearing sleeve has a third thin-walled angular contact bearing arranged laterally at both the upper and lower ends, and the cutter shaft passes through the third thin-walled angular contact bearing and rotates at the middle position of the third thin-walled angular contact bearing. The third thin-walled angular contact bearing inside the first bearing sleeve and the second tapered roller bearing inside the second bearing sleeve make the rotation of the cutter shaft inside the cutter holder body more stable.

4. The power tool holder according to claim 2, characterized in that, A first tapered roller bearing is disposed above the first bearing sleeve, and a second thin-walled angular contact bearing is disposed above the first tapered roller bearing. The first tapered roller bearing and the second thin-walled angular contact bearing are located inside the rotor core, and the cutter shaft passes through the first tapered roller bearing and the second thin-walled angular contact bearing and rotates at the middle position between the first tapered roller bearing and the second thin-walled angular contact bearing.

5. The power tool holder according to claim 1, characterized in that, A first deep groove ball bearing is provided at the upper part of the rotor core, and a first thin-walled angular contact bearing is provided horizontally above the first deep groove ball bearing. The first thin-walled angular contact bearing is horizontally mounted inside the rotor core, and the cutter shaft passes through the first deep groove ball bearing and the first thin-walled angular contact bearing and rotates at the middle position of the first deep groove ball bearing and the first thin-walled angular contact bearing.

6. The power tool holder according to claim 1, characterized in that, A limiting sleeve is provided between the cutter shaft and the cutter body, and the cutter body is vertically inserted into the bottom end of the limiting sleeve. The limiting sleeve is vertically inserted into the lower part of the cutter shaft, and a locking ring is fitted on the outside of the limiting sleeve cover.

7. The power tool holder according to claim 6, characterized in that, An outer spacer is provided between the cutter shaft and the cutter holder body, and the outer spacer is fitted onto the outside of the bottom end of the cutter shaft. The outer spacer is located laterally at the bottom end of the cutter holder body, and the cutter shaft rotates at the middle position of the outer spacer.

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