A tool repeatability positioning device

CN224658751UActive Publication Date: 2026-08-21YANCHENG HENGDA TOOLS CO LTD
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Patent Information

Application Number
CN202522107351.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-29
Publication Date
2026-08-21
Estimated Expiration
2035-09-29

AI Technical Summary

Technical Problem

[0003]现有的刀具重复定位装置,如公开号CN218696019U公开的一种小直径内孔车镗刀的精密重复定位夹具,虽然具有通过弹簧可以对刀具起到减震效果,防止刀具长时间晃动,造成刀具与螺钉之间发生松动,但此定位夹具,其不便对刀具进行两端稳定的卡合、且不便对夹持后的刀具进行支撑,保证其抗弯折强度,为此,我们提出一种刀具重复定位装置

Benefits of technology

[0013] 1. In this utility model, the first inner positioning port and the first outer positioning port correspondingly opened between the cutting tool and the positioning sleeve, and the second inner positioning port and the second outer positioning port correspondingly opened between the positioning sleeve and the positioning cylinder, can respectively position the first positioning block and the second positioning block for precise positioning. Through repeated positioning between the cutting tool, the positioning sleeve and the positioning cylinder, the accuracy of the cutting tool's position in the positioning cylinder is ensured. At the same time, the first positioning block between the cutting tool and the positioning sleeve can be locked into the positioning hole, and the second positioning block between the positioning sleeve and the positioning cylinder can also be locked into the inner end of the steel sleeve. Thus, the stability of the cutting tool after positioning and installation is enhanced by locking the first positioning block and the second positioning block.

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Abstract

The utility model discloses a tool repeated positioning device, include: device main body, positioning subassembly, device main body includes the fixed seat of positioning cylinder bottom fixedness, positioning subassembly includes the positioning hole of setting up in the positioning cylinder, the positioning sleeve of active installation in the positioning hole, the mounting hole of setting up in the positioning sleeve, the tool of active installation in the mounting hole, the first inner positioning mouth of setting up in the tool, the first outer positioning mouth of setting up in the positioning sleeve. The utility model discloses a tool repeated positioning device, the first inner positioning mouth and the first outer positioning mouth of corresponding setting up between tool and positioning sleeve, and the second inner positioning mouth and the second outer positioning mouth of corresponding setting up between the positioning sleeve and the positioning cylinder, respectively can position the accurate positioning of the position of first locating block and second locating block, to through the repeated positioning between tool, positioning sleeve and the positioning cylinder, ensure the accurate position of tool in the positioning cylinder.
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Description

Technical Field

[0001] This utility model relates to the field of machine tool technology, specifically to a tool repositioning device. Background Technology

[0002] Machine tools refer to machines that manufacture machinery and equipment. They play a significant role in the modernization of the national economy. A lathe is a machine tool that mainly uses cutting tools to turn rotating workpieces. Drills, reamers, taps, dies, and knurling tools can also be used on a lathe for corresponding machining. The cutting tools used on a machine tool must be installed with accurate positioning and secure installation.

[0003] Existing tool repositioning devices, such as the precision repositioning fixture for a small-diameter internal boring tool disclosed in CN218696019U, can dampen the tool by using springs to prevent it from shaking for a long time and causing loosening between the tool and the screw. However, this positioning fixture is not convenient for stably engaging the tool at both ends, nor is it convenient for supporting the clamped tool to ensure its bending strength. Therefore, we propose a tool repositioning device. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows:

[0006] A tool repetitive positioning device includes: a device body and a positioning component; the device body includes a positioning cylinder and a fixed base fixed to the bottom of the positioning cylinder; the positioning component includes a positioning hole opened in the positioning cylinder, a positioning sleeve movably installed in the positioning hole, a mounting hole opened in the positioning sleeve, a tool movably installed in the mounting hole, a first inner positioning port opened in the tool, a first outer positioning port opened in the positioning sleeve, a first positioning block movably matched and installed in the first inner positioning port and the first outer positioning port, a second inner positioning port opened on both sides of the positioning sleeve, a second outer positioning port opened on both sides of the positioning cylinder, and a second positioning block movably matched and installed in both the second inner positioning port and the second outer positioning port.

[0007] Preferably, the bottom end of the positioning sleeve is further provided with an internal thread, and a threaded plug is movably installed in the internal thread.

[0008] Preferably, the upper part of the positioning cylinder is also provided with an inner recess.

[0009] Preferably, the outer end of the positioning cylinder is provided with an external thread, and a nut is movably installed on the outer side of the external thread.

[0010] Preferably, a steel sleeve is also fixedly installed on the upper end of the nut.

[0011] Preferably, the positioning sleeve is made of titanium alloy.

[0012] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0013] 1. In this utility model, the first inner positioning port and the first outer positioning port correspondingly opened between the cutting tool and the positioning sleeve, and the second inner positioning port and the second outer positioning port correspondingly opened between the positioning sleeve and the positioning cylinder, can respectively position the first positioning block and the second positioning block for precise positioning. Through repeated positioning between the cutting tool, the positioning sleeve and the positioning cylinder, the accuracy of the cutting tool's position in the positioning cylinder is ensured. At the same time, the first positioning block between the cutting tool and the positioning sleeve can be locked into the positioning hole, and the second positioning block between the positioning sleeve and the positioning cylinder can also be locked into the inner end of the steel sleeve. Thus, the stability of the cutting tool after positioning and installation is enhanced by locking the first positioning block and the second positioning block.

[0014] 2. In this utility model, the positioning sleeve, which is supported by high-strength titanium alloy material and installed on the outer end of the tool, can also support the outer end of the tool in use to avoid the problem of positional deviation caused by deformation. Attached Figure Description

[0015] Figure 1 This is an overall structural diagram of the present invention;

[0016] Figure 2 This is a disassembly diagram of the nut of this utility model;

[0017] Figure 3 This is a disassembly diagram of the positioning sleeve of this utility model;

[0018] Figure 4 This is a disassembly diagram of the cutting tool of this utility model;

[0019] Figure 5 This is another perspective of the disassembly diagram of the cutting tool of this utility model.

[0020] Figure label:

[0021] 100. Main body of the device; 101. Positioning cylinder; 102. Fixing base;

[0022] 200. Positioning component; 201. Positioning hole; 202. Positioning sleeve; 203. Mounting hole; 204. Tool; 205. First inner positioning port; 206. First outer positioning port; 207. First positioning block; 208. Second inner positioning port; 209. Second outer positioning port; 210. Second positioning block; 211. Internal thread; 212. Threaded plug; 213. Inner notch; 214. External thread; 215. Nut; 216. Steel sleeve. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0024] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a tool repositioning device.

[0025] Example 1:

[0026] Combination Figure 1-5 As shown, the present invention provides a tool repetitive positioning device, comprising: a device body 100 and a positioning component 200; the device body 100 includes a positioning cylinder 101 and a fixing seat 102 fixed to the bottom of the positioning cylinder 101; the positioning component 200 includes a positioning hole 201 opened in the positioning cylinder 101, a positioning sleeve 202 movably installed in the positioning hole 201, a mounting hole 203 opened in the positioning sleeve 202, a tool 204 movably installed in the mounting hole 203, a first inner positioning port 205 opened in the tool 204, a first outer positioning port 206 opened in the positioning sleeve 202, and the first inner positioning port 205 and the first outer positioning port 206 being movably matched and installed. The first positioning block 207 and the positioning sleeve 202 have second inner positioning ports 208 on both sides, the positioning cylinder 101 has second outer positioning ports 209 on both sides, and the second inner positioning ports 208 and the second outer positioning ports 209 are movably matched with second positioning blocks 210. The bottom of the positioning sleeve 202 is also provided with an internal thread 211, and a threaded plug 212 is movably installed in the internal thread 211. The upper part of the positioning cylinder 101 is also provided with an inner recess 213, and the outer end of the positioning cylinder 101 is also provided with an external thread 214. A nut 215 is movably installed on the outer side of the external thread 214, and a steel sleeve 216 is fixedly installed on the upper end of the nut 215. The positioning sleeve 202 is made of titanium alloy.

[0027] Specifically, a machine tool refers to a machine used to manufacture machinery and equipment. The cutting tools used for machining on a machine tool require precise positioning and stable installation. In this device's main body 100, the first inner positioning port 205 and the first outer positioning port 206 corresponding to the cutting tool 204 and the positioning sleeve 202, and the second inner positioning port 208 and the second outer positioning port 209 corresponding to the positioning sleeve 202 and the positioning cylinder 101, respectively, can precisely position the first positioning block 207 and the second positioning block 210. Through repeated positioning between the cutting tool 204, the positioning sleeve 202, and the positioning cylinder 101, the precise position of the cutting tool 204 within the positioning cylinder 101 is ensured. Simultaneously, the first positioning block 207 between the cutting tool 204 and the positioning sleeve 202 can be locked into the positioning hole 201, and the second positioning block 210 between the positioning sleeve 202 and the positioning cylinder 101 can also be locked into the inner end of the steel sleeve 216. The locking of the first positioning block 207 and the second positioning block 210 enhances the stability of the tool 204 after positioning and installation. The positioning sleeve 202, which is supported by high-strength titanium alloy material and installed on the outer end of the tool 204, can also support the outer end of the tool 204 in use to avoid the problem of positional deviation caused by deformation. The positioning hole 201 in the positioning cylinder 101 is mainly used for the positioning and installation of the positioning sleeve 202. The threaded plug 212, which is locked at the inner thread 211 at the bottom of the positioning sleeve 202, is mainly used to press the tool 204 in the positioning sleeve 202 to ensure the stability of the first positioning block 207 after installation. The inner recess 213 opened at the upper part of the positioning cylinder 101 is mainly to reserve space for the second positioning blocks 210 at both ends for disassembly. The nut 215 installed at the outer end of the outer thread 214 is mainly to facilitate the movement of the steel sleeve 216 to the outer end of the second positioning block 210 for locking and positioning of the second positioning block 210.

[0028] Working principle and usage process of this utility model:

[0029] When positioning and installing the cutting tool 204, first install the cutting tool 204 into the mounting hole 203 in the positioning sleeve 202, aligning the first inner positioning port 205 on one side of the cutting tool 204 with the first outer positioning port 206 on one side of the positioning sleeve 202. Then, position and install the first positioning block 207 within the first inner positioning port 205 and the first outer positioning port 206 to establish a positioning connection between the cutting tool 204 and the positioning sleeve 202. Next, tighten the threaded plug 212 to the bottom of the positioning sleeve 202 to press the cutting tool 204 and the first positioning block 207 together. After the cutting tool 204 and the first positioning block 207 in the positioning sleeve 202 are pressed and fixed, the positioning sleeve is then... The entire 202 is installed into the positioning hole 201 in the positioning cylinder 101 and installed to the bottom. At the same time, the positioning sleeve 202 is rotated so that the second inner positioning port 208 at both ends of the sleeve is aligned with the second outer positioning port 209 at both ends of the positioning cylinder 101. Then, the second positioning block 210 is installed in the second inner positioning port 208 and the second outer positioning port 209 and pushed to the innermost end. Finally, the nut 215 at the outer end of the positioning cylinder 101 is rotated to rotate the steel sleeve 216 at the upper end of the nut 215 to the outside of the second positioning blocks 210 at both ends, so as to bind and lock the second positioning blocks 210 at both ends, thereby completing the precise positioning of the tool 204.

[0030] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A tool repetitive positioning device, characterized in that, include: Device body (100), positioning component (200); The main body of the device (100) includes a positioning cylinder (101) and a fixing seat (102) fixed to the bottom of the positioning cylinder (101); The positioning assembly (200) includes a positioning hole (201) in the positioning cylinder (101), a positioning sleeve (202) movably installed in the positioning hole (201), an installation hole (203) in the positioning sleeve (202), a cutting tool (204) movably installed in the installation hole (203), a first inner positioning port (205) in the cutting tool (204), a first outer positioning port (206) in the positioning sleeve (202), a first positioning block (207) movably matched and installed in the first inner positioning port (205) and the first outer positioning port (206), a second inner positioning port (208) on both sides of the positioning sleeve (202), a second outer positioning port (209) on both sides of the positioning cylinder (101), and a second positioning block (210) movably matched and installed in the second inner positioning port (208) and the second outer positioning port (209).

2. The tool repetitive positioning device according to claim 1, characterized in that, The bottom of the positioning sleeve (202) is also provided with an internal thread (211), and a threaded plug (212) is movably installed in the internal thread (211).

3. The tool repositioning device according to claim 1, characterized in that, The upper part of the positioning cylinder (101) is also provided with an inner recess (213).

4. The tool repetitive positioning device according to claim 1, characterized in that, The outer end of the positioning cylinder (101) is also provided with an external thread (214), and a nut (215) is movably installed on the outside of the external thread (214).

5. A tool repositioning device according to claim 4, characterized in that, A steel sleeve (216) is also fixedly installed on the upper end of the nut (215).

6. The tool repetitive positioning device according to claim 1, characterized in that, The positioning sleeve (202) is made of titanium alloy.

Citation Information

Patent Citations

  • Precise repeated positioning clamp of small-diameter inner hole lathe boring cutter

    CN218696019U