Limiting type taper reamer

The limiting taper reamer solves the problems of difficult reamer replacement and feed rate control through a movable tool holder and threaded fixing structure. It realizes convenient replacement of reamer inserts and flexible adjustment of feed rate, has a wide range of adaptability, reduces maintenance costs and improves machining accuracy.

CN223656147UActive Publication Date: 2025-12-12WUXI RUIWEI PRECISION CUTTING TOOL CO LTD
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Patent Information

Application Number
CN202422787835.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-15
Publication Date
2025-12-12
Estimated Expiration
2034-11-15

AI Technical Summary

Technical Problem

Existing tapered reamers require complete replacement of the entire reamer when the cutting edge is damaged during use, resulting in high maintenance costs. Furthermore, the feed rate is difficult to control precisely in deep hole machining, affecting machining accuracy.

Method used

A limiting taper reamer was designed. A movable tool bar is set in the inner cavity of the tool holder. The position of the tool bar is fixed by a threaded rod and a threaded pin. The length is adjusted by a scale line. The reamer blade is connected to the tool holder through a connecting block, which makes it easy to replace individually.

Benefits of technology

It enables convenient replacement of reamer inserts, reduces maintenance costs, and allows for flexible adjustment of feed rate, improving machining accuracy and applicability.

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Abstract

The utility model belongs to the technical field of reamers, and particularly relates to a limiting type taper reamer which comprises an installation assembly, a reamer handle, an installation sleeve arranged at the top of the reamer handle, a reamer rod arranged in an inner cavity of the reamer handle, threaded sleeves arranged on the two sides of the reamer handle and threaded pins arranged in inner cavities of the threaded sleeves. The reamer assembly comprises a reamer holder located at the bottom of the reamer bar, a locking cover arranged on the top of the reamer holder and connected with the bottom of the reamer bar, a fixing screw arranged on the top of the locking cover, and a fixing screw hole formed in the top of the top seat and matched with the fixing screw. The mounting groove is formed in the side wall of the tool apron, the reamer blade is arranged on the side wall of the tool apron, and the connecting block is arranged on one side of the reamer blade and connected with the mounting groove. The reamer is reasonable in structure, convenient to replace the reamer blade in the using process, capable of reducing the maintenance cost, convenient to adjust the feeding amount, high in flexibility and wide in application range.
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Description

Technical Field

[0001] This utility model relates to the field of reamer technology, specifically a limiting taper reamer. Background Technology

[0002] A tapered reamer is a tool specifically designed for reaming locating pin holes with the same taper. Its main function is to ream holes that have already been drilled or enlarged on a workpiece, aiming to improve the hole's machining accuracy and reduce its surface roughness. The reamer has one or more cutting inserts. During the reaming process, these inserts rub against the workpiece during prolonged high-speed rotation. When the cutting inserts are damaged or over-ground, the entire reamer must be discarded for rework, resulting in wasted operating costs.

[0003] Meanwhile, when machining certain parts with deep holes and a tapered sealing surface at the bottom of the deep holes, the tapered cross-section has strict dimensional requirements. For non-CNC machine tools, it is difficult to accurately control the feed rate using ordinary tapered reamers, which affects the machining accuracy. Based on the above problems, we propose a new type of limit-type tapered reamer. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] In view of the problems existing in the prior art, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a limiting taper reamer that facilitates the replacement of the reamer blade during use, reduces maintenance costs, and allows for easy adjustment of the feed rate, offering high flexibility and a wide range of applications.

[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0008] A limiting taper reamer, comprising:

[0009] The mounting components include a tool holder, a mounting sleeve disposed on the top of the tool holder, a tool bar disposed in the inner cavity of the tool holder, threaded sleeves disposed on both sides of the tool holder, and threaded pins disposed in the inner cavity of the threaded sleeves.

[0010] The reamer assembly includes a reamer holder located at the bottom of the shank, a locking cover located at the top of the reamer holder and connected to the bottom of the shank, a fixing screw located at the top of the locking cover, a fixing screw hole located at the top of the reamer holder and cooperating with the fixing screw, a mounting groove located on the side wall of the reamer holder, a reamer blade located on the side wall of the reamer holder, and a connecting block located on one side of the reamer blade and connected to the mounting groove.

[0011] In a preferred embodiment of the limiting taper reamer described in this utility model, the shank is hollow.

[0012] As a preferred embodiment of the limiting taper reamer described in this utility model, the surface of the threaded pin is provided with a rotating handle.

[0013] As a preferred embodiment of the limiting taper reamer described in this utility model, the inner wall of the mounting sleeve is provided with internal threads.

[0014] As a preferred embodiment of the limiting taper reamer described in this utility model, the surface of the tool shank is provided with scale lines.

[0015] In a preferred embodiment of the limiting tapered reamer described in this utility model, the cross-sections of the mounting groove and the connecting block are T-shaped.

[0016] As a preferred embodiment of the limiting taper reamer described in this utility model, the bottom of the locking cover is provided with a positioning rod, and the top of the tool holder is provided with a matching positioning hole.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. By providing a movable tool holder inside the tool holder, the position of the tool holder is fixed by a threaded rod and a threaded pin, and the length of the tool holder is adjusted by a scale line, which facilitates the adjustment of the feed rate during the machining process, making it highly flexible and widely applicable;

[0019] 2. In addition, the reamer is connected to the tool holder via a connecting block and a mounting slot, making it easy to replace individually when damaged or worn, thus reducing maintenance costs. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. 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. Among them:

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the reamer assembly structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the top structure of the tool holder of this utility model.

[0024] In the diagram: 100 Mounting assembly, 110 Tool holder, 120 Mounting sleeve, 130 Tool bar, 140 Threaded sleeve, 150 Threaded pin, 160 Scale line, 200 Reamer assembly, 210 Tool holder, 220 Locking cap, 230 Fixing screw, 240 Fixing screw hole, 250 Mounting slot, 260 Reamer blade, 270 Connecting block. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0029] This utility model provides the following technical solution: a limiting taper reamer, which facilitates the replacement of the reamer blade during use, reduces maintenance costs, and is easy to adjust the feed rate, offering high flexibility and a wide range of applications;

[0030] Figures 1 to 3 The diagram shown is a structural schematic of an embodiment of a limiting tapered reamer of the present invention, the main body of which includes a mounting assembly 100 and a reamer assembly 200;

[0031] The mounting assembly 100 includes a tool holder 110, a mounting sleeve 120 mounted on the top of the tool holder 110, a tool bar 130 mounted inside the tool holder 110, threaded sleeves 140 mounted on both sides of the tool holder 110, and a threaded pin 150 mounted inside the threaded sleeve 140. The tool holder 110 is hollow. A rotating handle is mounted on the surface of the threaded pin 150. The inner wall of the mounting sleeve 120 has internal threads. The surface of the tool bar 130 has scale lines 160. Furthermore, the tool holder 110 is used to support the mounting sleeve 120, which is used to install equipment. The tool bar 130 is used to adjust the length. The threaded sleeve 140 is used to support the threaded pin 150. The surface of the tool bar 130 has pin holes that mate with the threaded pin 150. The threaded pin 150 is used to fix the position of the tool bar 130. The scale lines 160 are used to facilitate length adjustment.

[0032] The reamer assembly 200 includes a reamer holder 210 located at the bottom of the reamer 130, a locking cover 220 mounted on the top of the reamer holder 210 and connected to the bottom of the reamer 130, a fixing screw 230 mounted on the top of the locking cover 220, a fixing screw hole 240 formed on the top of the reamer holder and cooperating with the fixing screw 230, a mounting groove 250 formed on the side wall of the reamer holder 210, a reamer blade 260 mounted on the side wall of the reamer holder 210, and a connecting block 270 mounted on one side of the reamer blade 260 and connected to the mounting groove 250. The mounting groove 250 and the connecting block 270 are also included. The connecting block 270 has a T-shaped cross-section. A positioning rod is installed at the bottom of the locking cover 220, and a matching positioning hole is provided at the top of the tool holder 210. Furthermore, the tool holder 210 is used to support components such as the reamer 260. The locking cover 220 is used to connect the tool holder 210 and the tool bar 130. The fixing screw 230 and the fixing screw hole 240 are used to connect the tool holder 210 and the locking cover 220. The mounting groove 250 is used to install the reamer 260. The connecting block 270 is used to connect the mounting groove 250. The reamer 260 is used for machining.

[0033] Combination Figures 1-3 The limiting taper reamer of this embodiment operates as follows: a movable tool shank 130 is provided in the inner cavity of the tool holder 110, and the position of the tool shank 130 is fixed by a threaded rod and a threaded pin 150. The length of the tool shank 130 is adjusted by a scale line 160, which facilitates the adjustment of the feed rate during machining, providing high flexibility and wide applicability. In addition, the reamer insert 260 is connected to the tool holder 210 by a connecting block 270 and a mounting groove 250, which facilitates individual replacement when damaged or worn, reducing maintenance costs.

[0034] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A limiting taper reamer, characterized in that, include: The mounting assembly (100) includes a tool holder (110), a mounting sleeve (120) disposed on the top of the tool holder (110), a tool bar (130) disposed in the inner cavity of the tool holder (110), threaded sleeves (140) disposed on both sides of the tool holder (110), and a threaded pin (150) disposed in the inner cavity of the threaded sleeve (140). The reamer assembly (200) includes a reamer holder (210) located at the bottom of the reamer bar (130), a locking cover (220) located at the top of the reamer holder (210) and connected to the bottom of the reamer bar (130), a fixing screw (230) located at the top of the locking cover (220), a fixing screw hole (240) located at the top of the top seat and cooperating with the fixing screw (230), a mounting groove (250) located on the side wall of the reamer holder (210), a reamer blade (260) located on the side wall of the reamer holder (210), and a connecting block (270) located on one side of the reamer blade (260) and connected to the mounting groove (250).

2. The limiting taper reamer according to claim 1, characterized in that: The handle (110) is hollow.

3. A limiting taper reamer according to claim 1, characterized in that: The surface of the threaded pin (150) is provided with a rotating handle.

4. A limiting taper reamer according to claim 1, characterized in that: The inner wall of the mounting sleeve (120) is provided with internal threads.

5. A limiting taper reamer according to claim 1, characterized in that: The surface of the tool holder (130) is provided with scale lines (160).

6. A limiting taper reamer according to claim 1, characterized in that: The mounting groove (250) and the connecting block (270) have T-shaped cross sections.

7. A limiting taper reamer according to claim 1, characterized in that: The bottom of the locking cover (220) is provided with a positioning rod, and the top of the knife holder (210) is provided with a matching positioning hole.