Tool apron fixing structure of combined machining center
By combining a limit rod and a tapered clamp with a magnetic column and elastic components, the design solves the problem of cumbersome and difficult-to-tighten tool holder replacement in composite machining centers, enabling rapid installation and fastening of the tool holder, and improving operating efficiency and connection reliability.
Patent Information
- Application Number
- CN202520584937.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-31
AI Technical Summary
The tool holder replacement operation of a composite machining center is cumbersome and difficult to tighten, which can easily lead to loose connections.
The design employs a limiting rod and a tapered clamp, combined with magnetic pillars and elastic components, to achieve rapid installation and fastening of the tool holder body.
It simplifies the tool holder replacement process, improves the ease and tightness of installation, and ensures a more secure connection.
Smart Images

Figure CN223917278U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of tool holder fixing structure for composite machining centers, and specifically to a tool holder fixing structure for composite machining centers. Background Technology
[0002] A composite machining center is a comprehensive processing equipment that is often used to process metal workpieces, such as turning, milling, grinding, polishing, and drilling. Traditionally, the tool holders need to be changed manually, and the replacement operation is relatively cumbersome. It is necessary to remove the bolts or hexagonal nails at multiple connection points to remove the tool head. The operation is cumbersome, and the connection may not be tight after disassembly or replacement.
[0003] The replacement of tool heads on existing machining centers is cumbersome and difficult to secure. For example, CN208357825U discloses an axial power tool holder for a mill-turn machining center, comprising a tool holder body, a spindle assembled in the inner hole of the tool holder body, and a tail connector fixed to the end of the tool holder body. The spindle is externally fitted with a bearing, which contacts a step in the inner hole of the tool holder body and is locked to the spindle from the inside by a locking nut. The spindle is fixed to the tool holder body by a flange cover. Different mill-turn machining centers are equipped with different types of power turrets, and their power output interfaces also differ. Matching with power turrets from different manufacturers can be achieved by using a sliding tail connector. This solves the problem that the power tool holder and power turret must be purchased from the same manufacturer, and it can be used with any turret for mill-turn machining operations. It has a simple structure and manufacturing process, and its price is significantly more advantageous than imported products, making it a complete substitute for imported products. However, the replacement and disassembly of the tool holder are cumbersome, and loose connections are common after disassembly and reassembly.
[0004] Therefore, it is necessary to invent a composite machining center tool holder fixing structure to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a tool holder fixing structure for composite machining centers, so as to solve the problems that the tool holders of composite machining centers are not easy to replace and are not easy to tighten after replacement.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A tool holder fixing structure for a composite machining center includes a composite machining center body, a tool holder control mechanism, a tool holder body, and an operating tool head. The tool holder control mechanism is disposed within the composite machining center body, and the tool holder body is connected within the tool holder control mechanism. The operating tool head can be installed within the tool holder body. The tool holder body is installed into a tool holder mounting mechanism through an insertion hole. The tool holder mounting mechanism is disposed within the tool holder control mechanism. The insertion hole contacts a limiting rod, and the limiting rod is inserted into the tool holder control mechanism through a hole on the side of the tool holder control mechanism and communicates with the insertion hole. A conical clamping plate is disposed within the tool holder mounting mechanism. A magnetic suction column is connected to the top of the conical clamping plate, and a protrusion is provided at the bottom of the conical clamping plate.
[0008] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0009] 1. This utility model simplifies the operation of the entire tool holder body by providing an insertion hole and a limiting rod in the installation mechanism. The limiting rod can be inserted into the insertion hole to fix the insertion rod, and the conical clamp plate set in the installation mechanism can clamp the tool holder body in a double manner with the conical platform on the tool holder body, making the connection between the tool holder body and the installation mechanism tighter.
[0010] 2. Multiple elastic elements installed in the channel starting from the conical platform make it convenient to change the cutting head. The force of the elastic deformation between the elastic elements continuously squeezes the cutting head, and the cutting head can be continuously fed towards the magnetic column. When the metal plate contacts the magnetic column, the cutting head is fixed to the cutting head and the cutting head body. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0012] Figure 2 This is a partial three-dimensional structural diagram of the tool holder control mechanism of this utility model;
[0013] Figure 3 This is a partial three-dimensional structural diagram of the tool holder mounting mechanism of this utility model;
[0014] Figure 4 This is a three-dimensional sectional view of the conical truncated pyramid of this utility model;
[0015] Figure 5 This utility model Figure 4 A magnified structural diagram of point A in the middle.
[0016] Explanation of reference numerals in the attached drawings: 1. Main body of the composite machining center; 2. Tool holder control mechanism; 3. Tool holder body; 301. Insertion rod; 302. Limiting hole; 303. Conical platform; 304. Groove; 305. Metal sheet; 306. Elastic element; 4. Operating tool head; 5. Tool holder mounting mechanism; 501. Insertion hole; 502. Conical clamping plate; 503. Magnetic suction column; 504. Protrusion; 6. Limiting rod. Detailed Implementation
[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0018] This utility model provides, for example Figures 1-3 The composite machining center tool holder fixing structure shown includes a composite machining center body 1, a tool holder control mechanism 2, a tool holder body 3, and an operating tool head 4. The tool holder control mechanism 2 is housed within the composite machining center body 1, and the tool holder body 3 is connected within the tool holder control mechanism 2. The operating tool head 4 can be installed within the tool holder body 3. The tool holder body 3 is installed into a tool holder mounting mechanism 5 through a socket 501. The tool holder mounting mechanism 5 is located within the tool holder control mechanism 2. The socket 501 contacts a limiting rod 6, providing a limiting position. The rod 6 is inserted into the tool holder control mechanism 2 through the hole on the side of the tool holder control mechanism 2 and communicates with the insertion hole 501. The tool holder mounting mechanism 5 is provided with a conical clamp 502. The top of the conical clamp 502 is connected to a magnetic column 503. The bottom of the conical clamp 502 is provided with a protrusion 504, which is composed of a complete ring. The protrusion 504 is adapted to the groove 304 opened on the tool holder body 3. The groove 304 is opened below the conical platform 303. The conical platform 303 is adapted to the conical clamp 502.
[0019] The tool holder body 3 is installed and fixed by using the tool holder mounting mechanism 5, and the tool holder body 3 can be installed quickly and easily with one hand by using the cooperation of the groove 304 and the protrusion 504. The operation is simple and efficient.
[0020] A rod 301 is fixedly connected to the tool holder body 3. A limiting hole 302 is formed on the rod 301, and the two limiting holes 302 are mirror-symmetrically arranged about the conical pedestal 303. The limiting rod 6 can be inserted into the limiting hole 302 to limit the movement of the tool holder body 3. A hollow groove is formed at the center of the conical pedestal 303. The diameter of the hollow groove matches the operating tool head 4, and a metal plate 305 is slidably connected inside the hollow groove. Multiple elastic elements 306 are connected to the metal plate 305, forming a closed circle. Springs connect each elastic element 306 to an extension rod below the metal plate 305. Alternatively, guide posts can be provided to guide the lateral movement of the elastic elements 306.
[0021] The channel at the center of the conical platform 303 on the main body of the tool holder 3 facilitates the replacement of the operating tool head 4. The operating tool head 4 is continuously clamped and tightened by the force of the multiple elastic elements 306 in the channel being squeezed and stretched until the metal plate 305 is tightly attached and fixed to the magnetic column 503.
[0022] The elastic element 306 consists of an inclined rod, a spring, and a one-sixth ring. The six rings can form a closed ring. The diameter of the closed ring is smaller than that of the metal sheet 305. When multiple elastic elements 306 are opened at the same time, the maximum diameter matches the diameter of the operating head 4.
[0023] Multiple elastic elements 306 can continuously clamp the constantly extending operating blade 4.
[0024] Working principle of this utility model:
[0025] Refer to the instruction manual appendix Figures 1-3 When using this utility model, the tool holder control mechanism 2 can first perform multi-directional processing on the workpiece to be processed, as well as comprehensive processing (milling, tapping and drilling, etc.).
[0026] When it is necessary to replace the tool holder body 3 in the tool holder control mechanism 2, the limiting rod 6 needs to be pulled out from the hole in the tool holder control mechanism 2, that is, the insertion rod 301 and the limiting hole 302 that were originally inserted and fixed by the limiting rod 6 need to be loosened, so that the tool holder body 3 can be taken out from the tool holder mounting mechanism 5.
[0027] Then, pull out the operating head 4 from the tool holder body 3, replace the operating head 4 with a different thread and install it into the tool holder body 3, so that the replacement of the operating head 4 can be easily completed.
[0028] Refer to the instruction manual appendix Figures 3-5 When using this utility model, when reinstalling the tool holder body 3 into the tool holder mounting mechanism 5, it is necessary to align the insertion rod 301 with the insertion hole 501 and insert it, while aligning the groove 304 and the protrusion 504 with the locking mechanism.
[0029] Next, insert the operating cutter head 4 into the cutter body 3 through the hole at the center of the conical platform 303. Continuously expand the elastic element 306 while feeding the metal sheet 305 toward the magnetic column 503 until the metal sheet 305 and the magnetic column 503 are in contact. This completes the installation of the cutter body 3, the operating cutter head 4, the cutter mounting mechanism 5, and the cutter control mechanism 2.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.
Claims
1. A tool holder fixing structure for a composite machining center, characterized in that: The composite machining center includes a main body (1) and an operating tool head (4). The main body (1) is equipped with a tool holder control mechanism (2). The tool holder control mechanism (2) is connected to a tool holder body (3). The operating tool head (4) can be installed in the tool holder body (3). The tool holder body (3) is installed into a tool holder mounting mechanism (5) through a socket (501). The tool holder mounting mechanism (5) is located in the tool holder control mechanism (2). The socket (501) contacts a limiting rod (6). The limiting rod (6) is inserted into the tool holder control mechanism (2) through a hole on the side of the tool holder control mechanism (2) and communicates with the socket (501). The tool holder mounting mechanism (5) is equipped with a conical clamping plate (502). A magnetic column (503) is connected to the top of the conical clamping plate (502). A protrusion (504) is provided at the bottom of the conical clamping plate (502).
2. The composite machining center tool holder fixing structure according to claim 1, characterized in that: The protrusion (504) is composed of a complete circular ring, and the protrusion (504) is adapted to the groove (304) opened on the tool holder body (3).
3. The composite machining center tool holder fixing structure according to claim 2, characterized in that: The groove (304) is formed below the conical platform (303), and the conical platform (303) is adapted to the conical clamp (502).
4. The composite machining center tool holder fixing structure according to claim 1, characterized in that: A plug rod (301) is fixedly connected to the main body (3) of the tool holder, and a limit hole (302) is provided on the plug rod (301).
5. The composite machining center tool holder fixing structure according to claim 4, characterized in that: The limiting holes (302) are two in number and are arranged in a mirror-symmetrical manner with respect to the conical platform (303).
6. The composite machining center tool holder fixing structure according to claim 3, characterized in that: A hollow groove is provided at the center of the conical platform (303), the diameter of which matches the operating blade (4), and a metal plate (305) is slidably connected inside the hollow groove.
7. The composite machining center tool holder fixing structure according to claim 6, characterized in that: An elastic element (306) is connected to the metal sheet (305), and multiple elastic elements (306) are provided.
8. The composite machining center tool holder fixing structure according to claim 7, characterized in that: Multiple elastic elements (306) can form a closed circle, and each of the multiple elastic elements (306) is connected to a spring.
9. The composite machining center tool holder fixing structure according to claim 8, characterized in that: The elastic element (306) consists of an inclined rod, a spring, and a one-sixth ring, and the six rings can form a closed ring, the diameter of which is smaller than that of the metal sheet (305).
Citation Information
Patent Citations
A axial power blade holder for turnning and milling combined machining center
CN208357825U