A kind of insert holder device for turning and milling hybrid machine tool
By designing a tool holder for a milling and turning machine tool, the force points of the tool are increased. The friction between the threaded rod and the support plate, along with the auxiliary fixing of the limiting block, solves the problem of unstable tool fixing and improves the stability and machining accuracy of the tool.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG CHENGHONG PRECISION MASCH CO LTD
- Filing Date
- 2025-09-06
- Publication Date
- 2026-08-04
AI Technical Summary
Existing milling and turning machines have problems with unstable tool fixing and easy loosening.
A tool holder for a milling and turning machine tool was designed. By combining a cylindrical support block, a connecting plate, a support rod, and a locking assembly, the force points of the tool are increased. The stability of the tool is improved by utilizing the friction between the threaded rod and the support plate, as well as the auxiliary fixing of the limiting block.
It effectively prevents the insert from loosening during operation, improves the stability of the insert, and ensures machining accuracy and efficiency.
Smart Images

Figure CN224587464U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of CNC machine tool technology, and in particular to the design of a tool clamping device for a turning and milling composite machine tool. Background Technology
[0002] Composite machining is one of the most popular machining processes internationally in the field of mechanical processing. It is an advanced manufacturing technology. Composite machining combines several different machining processes on a single machine tool. The most widely used and most challenging composite machining is mill-turn machining. A mill-turn machining center is essentially a combination of a CNC lathe and a machining center.
[0003] The Jingfus milling machine is a type of turning and milling machine tool used to process precision parts. Normally, when changing tools, the cutter is directly installed on the tool holder and clamped and fixed by the chuck. This method, due to the single fixing point, can lead to unstable fixing and easy loosening of the tool during operation. Utility Model Content
[0004] The purpose of this invention is to overcome the existing defects and provide a tool holder for a milling and turning machine tool, which can increase the force points of the tool and ensure the stability of the tool fixation.
[0005] The technical solution to achieve the above objective is: a tool holder for a milling and turning machine tool, comprising a cylindrical support block, a connecting plate connected to the lower surface of the cylindrical support block, a first threaded hole provided at each of the four opposite corners of the connecting plate, a support rod connected to the lower part of the connecting plate, an installation groove provided in the middle part of the cylindrical support block, a tool placed in the installation groove, and a locking component for fixing the tool provided in the installation groove.
[0006] Preferably, the locking assembly includes a support plate, multiple sets of guide rail grooves, sliders, springs, and threaded rods. Four sliding grooves are formed within the mounting groove, and multiple sets of guide rail grooves are mirror-formed within each sliding groove. A slider is slidably connected to each guide rail groove. Multiple sliders located within each sliding groove are connected to the corresponding support plate. Two mounting holes are also mirror-formed within each sliding groove, and one end of a corresponding spring is connected to each mounting hole. The other end of the spring is connected to the corresponding support plate. A second threaded hole is formed within each sliding groove, and the threaded rod is threadedly connected to the second threaded hole.
[0007] Preferably, an external thread is formed on the side wall of the cylindrical support block.
[0008] Preferably, a limit block is threadedly connected to the cylindrical support block.
[0009] Preferably, the inner wall of the limiting block is provided with an anti-slip soft pad layer.
[0010] Preferably, the anti-slip pad layer is in close contact with the insert blade.
[0011] Preferably, the support plate is equipped with an anti-slip coating.
[0012] Preferably, the threaded rod is provided with a cross groove.
[0013] The beneficial effects of this utility model are as follows: the connecting plate and the cylindrical support block are fixed to the tool holder of the machine tool by four bolts. Rotating each threaded rod makes the threaded rod close to the support plate. Continuing to rotate the threaded rod causes each support plate to be close to the insert. Since the support plate is slidably connected to the corresponding sliding groove through multiple sliders, the support plate increases the force points of the threaded rod and the insert. With the help of the limit block to provide auxiliary support for the insert, the stability of the insert fixing can be greatly improved, preventing the insert from loosening during operation. Attached Figure Description
[0014] Figure 1 This is a perspective view of the present invention; Figure 2 yes Figure 1 A partial sectional view; Figure 3 This is a schematic diagram of the parts inside the cylindrical support block of this utility model; Figure 4 yes Figure 3 A magnified view of a portion of point A in the middle.
[0015] In the diagram: 1. Cylindrical support block; 2. Connecting plate; 3. First threaded hole; 4. Support rod; 5. Mounting groove; 6. Insert tool; 7. Support plate; 8. Guide rail groove; 9. Slider; 10. Spring; 11. Threaded rod; 12. Limiting block. Detailed Implementation
[0016] The technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0017] The present invention will be further described below with reference to the accompanying drawings.
[0018] like Figure 1-4As shown, a tool holder for a milling and turning machine tool includes a cylindrical support block 1, a connecting plate 2, a support rod 4, and a locking assembly.
[0019] Specifically, a connecting plate 2 is connected to the lower surface of the cylindrical support block 1. A first threaded hole 3 is provided at each of the four opposite corners of the connecting plate 2. The device is fixed to the tool holder of the Jingfus machining center by passing four corresponding bolts through the first threaded holes 3. A support rod 4 is connected to the lower part of the connecting plate 2. An installation groove 5 is opened in the middle part of the cylindrical support block 1. A insert knife 6 is placed in the installation groove 5. A locking component for fixing the insert knife 6 is opened in the installation groove 5.
[0020] Specifically, the locking assembly includes a support plate 7, multiple sets of guide rail grooves 8, sliders 9, springs 10, and threaded rods 11. The mounting groove 5 has four sliding grooves, each containing multiple sets of guide rail grooves 8 mirrored in shape. Each guide rail groove 8 has a slider 9 slidably connected to it. The sliders 9 in each sliding groove are connected to the corresponding support plate 7. Each sliding groove also has two mirrored mounting holes, each connected to one end of a corresponding spring 10. The other end of the spring 10 is connected to the corresponding support plate 7. When the threaded rod 11 is not installed, the spring force of the spring 10 pushes the support plate 7 outward, facilitating the insertion of the inserter 6 into the mounting groove 5. Each sliding groove has a second threaded hole, with the threaded rod 11 threadedly connected to it.
[0021] Specifically, an external thread is formed on the side wall of the cylindrical support block 1; a limiting block 12 is threadedly connected to the cylindrical support block 1, which restricts the insert 6 within the mounting groove 5, thus assisting in fixing the insert 6 and improving the stability of fixing the insert 6 in this device; the inner wall of the limiting block 12 is provided with an anti-slip soft pad layer, which is in close contact with the insert 6, protecting the insert 6 and preventing wear during the installation of the limiting block 12; an anti-slip coating is installed on the support plate 7, which increases the friction between the support plate 7 and the insert 6, improving the stability of fixing the insert 6; a cross groove is provided on the threaded rod 11, which facilitates the screwdriver to turn the threaded rod 11.
[0022] Working principle: First, insert the inserter 6 into the mounting slot 5, then install each threaded rod 11 into the corresponding second threaded hole, then rotate each threaded rod 11 so that the threaded rod 11 is in close contact with the support plate 7. Continue to rotate the threaded rod 11, causing each support plate 7 to be in close contact with the inserter 6, and fix the inserter 6 by friction. Next, install the limiting block 12 on the upper end of the side wall of the cylindrical support block 1. Finally, place this device on the tool holder of the Jingfus machining center and fix the device by passing four corresponding bolts through the first threaded hole 3.
[0023] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A tool holder for a milling and turning machine tool, characterized in that, The device includes a cylindrical support block (1), a connecting plate (2) connected to the lower surface of the cylindrical support block (1), a first threaded hole (3) at each of the four diagonal corners of the connecting plate (2), a support rod (4) connected to the lower part of the connecting plate (2), an installation groove (5) opened in the middle part of the cylindrical support block (1), a inserter (6) placed in the installation groove (5), and a locking component for fixing the inserter (6) opened in the installation groove (5).
2. The tool clamping device for a milling and turning machine tool according to claim 1, characterized in that, The locking assembly includes a support plate (7), multiple sets of guide rail grooves (8), sliders (9), springs (10), and threaded rods (11). The mounting groove (5) has four sliding grooves, and each sliding groove has multiple sets of guide rail grooves (8) mirrored in it. Each guide rail groove (8) has a slider (9) slidably connected to it. The multiple sliders (9) located in each sliding groove are connected to the corresponding support plate (7). Each sliding groove also has two mounting holes mirrored in it. Each mounting hole is connected to one end of the corresponding spring (10), and the other end of the spring (10) is connected to the corresponding support plate (7). Each sliding groove has a second threaded hole, and the threaded rod (11) is threadedly connected to the second threaded hole.
3. The tool clamping device for a milling and turning machine tool according to claim 1, characterized in that, An external thread is formed on the side wall of the cylindrical support block (1).
4. A tool holder for a milling and turning machine tool according to claim 3, characterized in that, The cylindrical support block (1) is threadedly connected to a limit block (12).
5. A tool holder for a milling and turning machine tool according to claim 4, characterized in that, The inner wall of the limiting block (12) is provided with an anti-slip soft pad layer.
6. A tool holder for a milling and turning machine tool according to claim 5, characterized in that, The anti-slip pad layer is in close contact with the insert (6).
7. A tool holder for a milling and turning machine tool according to claim 2, characterized in that, The support plate (7) is equipped with an anti-slip coating.
8. A tool holder for a milling and turning machine tool according to claim 2, characterized in that, The threaded rod (11) is provided with a cross groove.