Universal floating reamer handle
By designing a shock-absorbing structure with a floating shank and connecting seat on the reamer shank, the vibration problem of the reamer when encountering hard workpieces is solved, thereby improving the stability and service life of the reamer.
Patent Information
- Application Number
- CN202423049943.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-11
AI Technical Summary
The existing reamer shaft and reamer are fixedly installed, lacking buffering and shock absorption, which makes the reamer easily damaged when encountering a hard workpiece during high-speed rotation, and may also damage the drive shaft.
Design a universal floating reamer holder, which adopts a shock-absorbing structure between the floating handle and the connecting seat, including a movable hole, a compression spring and an anti-disengagement structure. The radial vibration is reduced by the radial swing of the floating handle in the movable hole, the axial vibration is reduced by the compression spring, and the anti-disengagement structure ensures the stable installation of the floating handle.
It effectively reduces reamer vibration, protects the reamer, extends its service life, and improves machining accuracy and stability.
Smart Images
Figure CN223476477U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of reamer technology, and in particular to a universal floating reamer shank. Background Technology
[0002] Cutting tools are tools used for cutting processes in mechanical manufacturing. Reamers are one type of cutting tool. A reamer is a rotating cutting tool with one or more cutting teeth used to remove a thin layer of metal from the surface of a machined hole. Holes machined by reamers can obtain precise dimensions and shapes. The main function of reamers is to improve the machining accuracy of holes and reduce their surface roughness. They are suitable for finishing and semi-finishing. In addition, reamers have relatively small machining allowances.
[0003] In existing technology, the reamer shaft and the cutter are fixedly installed without any buffering or shock absorption. As a result, when the cutter rotates at high speed and encounters a relatively hard workpiece, it is not only easy to damage the cutter, but also easy to damage the entire drive shaft. Utility Model Content
[0004] The purpose of this invention is to provide a universal floating reamer holder that addresses the shortcomings of existing technologies.
[0005] To achieve the above purpose, the technical solution of the utility model is as follows:
[0006] A universal floating reamer holder includes a shank, a connecting seat connected to the shank, a cutter head module mounted on the connecting seat, the cutter head module including a floating handle, and a shock-absorbing structure provided between the cutter head module and the connecting seat; the shock-absorbing structure includes a through-hole formed in the connecting seat, the diameter of the through-hole being larger than the outer diameter of the floating handle, one end of the shank being inserted into the through-hole of the connecting seat, and a compression spring connected between the shank and the floating handle; the through-hole is formed with a stop cavity, and the stop cavity is provided with an anti-detachment structure to prevent the floating handle from falling out of the through-hole.
[0007] Furthermore, the anti-detachment structure includes multiple anti-detachment components. Each anti-detachment component includes an anti-detachment rod radially disposed on the outer ring wall of the floating handle and a first stop groove formed in the stop cavity. The first stop groove is provided with a limiting block for restricting the anti-detachment rod from falling outward from the first stop groove.
[0008] Furthermore: the limiting blocks are ball bearings, and there are two limiting blocks arranged at intervals, with the distance between the two limiting blocks being less than the outer diameter of the anti-detachment rod.
[0009] Furthermore: the stop cavity is located at the outer end of the connecting seat, and a connecting cover is installed at the outer end of the connecting seat. The connecting cover is formed with a ball groove for installing the ball.
[0010] Furthermore, the anti-detachment component also includes a second stop groove, which communicates with the inner end of the first stop groove, and the first and second stop grooves are aligned along the axial direction of the floating handle.
[0011] Furthermore, the cross-sectional area of the second stop groove is smaller than that of the first stop groove, and the anti-detachment rod can move axially between the first and second stop grooves.
[0012] Furthermore, there are three anti-detachment components, with two adjacent anti-detachment components arranged in a ring at equal intervals around the float handle.
[0013] Furthermore: a stop plate is installed at the inner end of the floating shank, and a first connecting block connected to one end of the compression spring is provided on the end face of the stop plate, and a second connecting block connected to the other end of the compression spring is provided on the tool bar.
[0014] Furthermore: the tool holder is formed with an external thread structure, and the movable hole of the connecting seat is formed with an internal thread hole that mates with the external thread structure of the tool holder.
[0015] The beneficial effects of this utility model are as follows: the tool holder is connected to one end of the movable hole of the connecting seat, and the floating handle is connected to the other end of the movable hole of the connecting seat; after installation, the floating handle can swing radially in the movable hole to reduce the radial vibration; when axial vibration occurs, the compression spring between the tool holder and the floating handle is used to reduce the axial vibration, thereby greatly reducing the vibration of the tool head module, protecting the reamer, and extending its service life. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the reamer holder.
[0017] Figure 2 This is a cross-sectional view of the reamer shank.
[0018] Figure 3 This is a schematic diagram of the exploded structure of a reamer shank.
[0019] The reference numerals in the figures include:
[0020] 1-Tool holder,
[0021] 11-Connecting seat, 12-External thread structure, 13-Modible hole, 14-Internal thread hole, 15-Compression spring,
[0022] 16-First connecting block, 17-Second connecting block, 18-Stop plate,
[0023] 2-Shock-absorbing structure,
[0024] 21-Stop cavity, 22-First stop groove, 23-Second stop groove, 24-Connecting cover, 25-Ball groove,
[0025] 26-Cutter head module, 27-Floating handle, 28-Anti-disengagement rod, 29-Limit block. Detailed Implementation
[0026] The present invention will now be described in detail with reference to the accompanying drawings.
[0027] like Figure 1-3 As shown, a universal floating reamer holder includes a shank 1 connected to a connecting seat 11. A shank 11 is fitted with a shank module 26, which includes a floating handle 27. A shock-absorbing structure 2 is provided between the shank module 26 and the connecting seat 11. The shock-absorbing structure 2 includes a movable hole 13 that passes through the connecting seat 11. The diameter of the movable hole 13 is larger than the outer diameter of the floating handle 27. One end of the shank 1 is inserted into the movable hole 13 of the connecting seat 11. A compression spring 15 is connected between the shank 1 and the floating handle 27.
[0028] The tool holder 1 is connected to one end of the movable hole 13 of the connecting seat 11, and the floating handle 27 is connected to the other end of the movable hole 13 of the connecting seat 11. After installation, the floating handle 27 can swing radially in the movable hole 13 to reduce the radial vibration. When axial vibration occurs, the compression spring 15 between the tool holder 1 and the floating handle 27 is used to reduce the axial vibration, thereby greatly reducing the vibration of the tool head module 26, protecting the reamer and extending its service life.
[0029] The movable hole 13 is formed with a stop cavity 21. The stop cavity 21 is provided with an anti-detachment structure to prevent the floating handle 27 from falling out of the movable hole 13. The anti-detachment structure includes multiple anti-detachment components, including an anti-detachment rod 28 radially disposed on the outer annular wall of the floating handle 27 and a first stop groove 22 formed in the stop cavity 21. The first stop groove 22 is provided with a limiting block 29 for restricting the anti-detachment rod 28 from falling out of the first stop groove 22. The anti-detachment rod 28 moves within the first stop groove 22 and will not fall out of the stop cavity 21 under the limiting of the limiting block 29, thereby ensuring the installation stability of the cutter head module 26 and the stability during drilling operations.
[0030] Preferably, the limiting block 29 is a ball bearing, and there are two limiting blocks 29 arranged at intervals. The distance between the two limiting blocks 29 is less than the outer diameter of the anti-detachment rod 28. Under the limiting of the ball bearing, the friction of the anti-detachment rod 28 is small when in contact, and the shock absorption effect is more obvious.
[0031] The stop cavity 21 is located at the outer end of the connecting seat 11. A connecting cover 24 is installed at the outer end of the connecting seat 11. The connecting cover 24 is formed with a ball groove 25 for installing the ball. During installation, the connecting cover 24 is removed from the connecting seat 11, and the floating handle 27 with the anti-detachment rod 28 is inserted into the stop cavity 21 so that the anti-detachment rod 28 is located in the first stop groove 22. Then the connecting cover 24 is installed on the connecting seat 11, and the ball installed in the ball groove 25 faces the first stop groove 22 and slides in cooperation with the anti-detachment rod 28 in the stop groove.
[0032] Preferably, the anti-detachment component further includes a second stop groove 23, which communicates with the inner end of the first stop groove 22. The first stop groove 22 and the second stop groove 23 are aligned along the axial direction of the floating handle 27. The cross-sectional area of the second stop groove 23 is smaller than that of the first stop groove 22, allowing the anti-detachment rod 28 to move axially in the first stop groove 22 and the second stop groove 23. In this embodiment, the second stop groove 23, together with the first stop groove 22, forms a certain space for the anti-detachment rod 28 to slide axially. Combined with the axial compression spring 15, the axial vibration of the cutter head module 26 can be significantly reduced.
[0033] Preferably, there are three anti-detachment components, with two adjacent anti-detachment components arranged in a ring at equal intervals around the float handle 27; multiple balls cooperate with the anti-detachment rod 28 to reduce radial vibration and prevent the float handle 27 from deviating too much radially.
[0034] Preferably, a stop plate 18 is installed at the inner end of the floating handle 27, and a first connecting block 16 connected to one end of the compression spring 15 is provided on the end face of the stop plate 18, and a second connecting block 17 connected to the other end of the compression spring 15 is provided on the tool bar 1.
[0035] Furthermore, the tool holder 1 is formed with an external thread structure 12, and the movable hole 13 of the connecting seat 11 is formed with an internal thread hole 14 that mates with the external thread structure 12 of the tool holder 1; the tool holder 1 can adjust the insertion depth of the tool holder 1 by mates with the internal thread hole 14 of the connecting seat 11 through the external thread structure 12, so as to adjust the elastic force of the spring.
[0036] In summary, this utility model possesses the aforementioned excellent characteristics, enabling it to achieve unprecedented efficiency in use and thus become a highly practical product.
[0037] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of this utility model. The content of this specification should not be construed as a limitation of this utility model.
Claims
1. A universal floating reamer holder, comprising a shank, a connecting seat connected to the shank, a cutter head module mounted on the connecting seat, the cutter head module comprising a floating shank, characterized in that: A shock-absorbing structure is provided between the cutter head module and the connecting seat; the shock-absorbing structure includes a movable hole that passes through the connecting seat, the diameter of the movable hole being larger than the outer diameter of the floating handle, one end of the cutter bar being inserted into the movable hole of the connecting seat, and a compression spring connecting the cutter bar and the floating handle; the movable hole is formed with a stop cavity, and the stop cavity is provided with an anti-detachment structure to prevent the floating handle from falling out of the movable hole.
2. The universal floating reamer holder according to claim 1, characterized in that: The anti-detachment structure includes multiple anti-detachment components. Each anti-detachment component includes an anti-detachment rod radially disposed on the outer ring wall of the floating handle and a first stop groove formed in the stop cavity. The first stop groove is provided with a limiting block for restricting the anti-detachment rod from falling outward from the first stop groove.
3. The universal floating reamer holder according to claim 2, characterized in that: The limiting block is a ball bearing, and there are two limiting blocks arranged at intervals. The distance between the two limiting blocks is less than the outer diameter of the anti-detachment rod.
4. A universal floating reamer holder according to claim 3, characterized in that: The stop cavity is located at the outer end of the connecting seat, and a connecting cover is installed at the outer end of the connecting seat. The connecting cover is formed with a ball groove for installing balls.
5. A universal floating reamer holder according to claim 4, characterized in that: The anti-detachment component also includes a second stop groove, which is connected to the inner end of the first stop groove, and the first stop groove and the second stop groove are aligned along the axial direction of the floating handle.
6. A universal floating reamer holder according to claim 5, characterized in that: The cross-sectional area of the second stop groove is smaller than that of the first stop groove, and the anti-detachment rod can move axially between the first stop groove and the second stop groove.
7. A universal floating reamer holder according to claim 6, characterized in that: The number of anti-detachment components is three, with two adjacent anti-detachment components arranged in a ring at equal intervals around the float handle.
8. A universal floating reamer holder according to claim 1, characterized in that: A stop plate is installed at the inner end of the floating handle. A first connecting block connected to one end of the compression spring is provided on the end face of the stop plate, and a second connecting block connected to the other end of the compression spring is provided on the tool bar.
9. A universal floating reamer holder according to claim 1, characterized in that: The tool holder is formed with an external thread structure, and the movable hole of the connecting seat is formed with an internal thread hole that mates with the external thread structure of the tool holder.