Machine tool cutter holder capable of quickly replacing cutter
By using a quick-change structure driven by springs, torque, bolts, and motors, the problems of difficult disassembly and maintenance of machine tool tool holders and time-consuming tool replacement are solved, enabling rapid tool replacement and improving machine tool processing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-03-17
AI Technical Summary
The existing machine tool's integral tool holder is difficult to disassemble and repair, and tool replacement is cumbersome and time-consuming, affecting processing efficiency.
It adopts a quick-change structure driven by springs, knobs, bolts, and motors, which simplifies the disassembly process by enabling rapid tool replacement through single bolt removal and motor drive.
This reduces the tedious and time-consuming process of tool changing, ensuring the continuity of machine tool processing and production efficiency.
Smart Images

Figure CN223997830U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machine tool holders for quick tool changing, and more particularly to a machine tool holder for quick tool changing. Background Technology
[0002] A machine tool is a machine used to process metal or other material blanks or workpieces to obtain the required geometry, dimensional accuracy, and surface quality. Machine tools are mainly used for cutting, forming, and processing metals or other materials. Common processing methods include turning, milling, drilling, and grinding. They are capable of performing high-precision and complex shape processing tasks and are core equipment in modern manufacturing.
[0003] The tool holder is one of the core functional components of a machine tool. Its main function is to precisely install and reliably hold the cutting tool, ensuring that the tool maintains a stable working state during high-speed cutting or precision machining. The structural design, material selection, and manufacturing precision of the tool holder not only determine the tool's positioning rigidity and dynamic balance performance, but also directly affect the machine tool's overall cutting efficiency, machining accuracy, and surface finish. Optimizing the tool holder design plays a crucial role in improving machine tool performance and ensuring machining stability.
[0004] While the aforementioned technologies achieve tool mounting, the commonly used integral tool holders on machine tools are difficult to disassemble and maintain in actual use. These tool holders are large and heavy, with the drive end directly connected by multiple bolts. Once the tool wears out or malfunctions, replacement is required, which is cumbersome, time-consuming, and labor-intensive, severely slowing down machine tool processing and affecting production efficiency. Therefore, a machine tool tool holder with a quick tool replacement mechanism is proposed to solve these problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a machine tool holder for quick tool replacement, aiming to solve the problems of the current machine tool integral tool holder being difficult to disassemble and repair, having multiple bolt connections at the drive end, and having to replace tools in a cumbersome and time-consuming manner when there is a problem, thus slowing down machine tool processing and production.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a machine tool tool holder for quick tool replacement, comprising a tool, a first vertical plate slidably connected to the outer wall of the tool, a top plate fixedly connected to the top of the first vertical plate, a second vertical plate fixedly connected to the bottom of the top plate, a screw threadedly connected to the inside of the second vertical plate, a rotating assembly provided at the top of the top plate, a rotating shaft slidably connected to the outer wall of the tool, a disassembly assembly provided on the outer wall of the rotating shaft, and the outer wall of the rotating shaft rotatably connected to the inner wall of the second vertical plate;
[0007] The disassembly assembly includes a knob, inside which a bolt is elastically connected via a spring, a shaft is connected through the outer wall of the bolt, and a nut is threaded onto the outer wall of the bolt.
[0008] As a further description of the above technical solution:
[0009] The outer wall of the knob is attached to the outer wall of the shaft.
[0010] As a further description of the above technical solution:
[0011] The outer wall of the rear end of the cutting tool has a slot, and the outer wall of the bolt is connected through the slot.
[0012] As a further description of the above technical solution:
[0013] One end of the spring is fixedly connected to the inside of the knob, and the other end of the spring is fixedly connected to the rear wall of the bolt.
[0014] As a further description of the above technical solution:
[0015] The outer wall of the first upright plate has a hole, and a crossbar is rotatably connected inside the hole. The front wall of the crossbar is fixedly connected to the rear wall of the tool.
[0016] As a further description of the above technical solution:
[0017] The rotating assembly includes a motor, the output shaft of which is fixedly connected to a first conical wheel, and a second conical wheel meshes with the outer wall of the first conical wheel.
[0018] As a further description of the above technical solution:
[0019] The outer wall of the first cone wheel is rotatably connected to the inside of the top plate.
[0020] As a further description of the above technical solution:
[0021] The second conical wheel is internally fixedly connected to the rotating shaft.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, by setting a spring, a knob, and a bolt, the bolt is manually inserted into the inside of the rotating shaft and the tool, and then the bolt is fixed with a nut. This achieves the goal of removing only one bolt when disassembling and repairing the tool holder, without having to remove multiple bolts. This reduces the tedious, time-consuming, and labor-intensive process of disassembly, which seriously slows down the machine tool processing progress and ensures the continuity of production.
[0024] 2. In this utility model, by setting a motor, a first cone wheel, and a second cone wheel, turning on the motor causes the first cone wheel to rotate and the second cone wheel to rotate simultaneously, which drives the rotating shaft to rotate and causes the cutting tool to rotate. This simplifies the structure of the existing complex cutting tool transmission device, reduces the difficulty of later maintenance, and ensures the efficient and stable operation of the equipment. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of a machine tool holder for quick tool changing according to the present invention.
[0026] Figure 2 This is a schematic diagram of the disassembly assembly for a machine tool holder that allows for quick tool replacement, as proposed in this utility model.
[0027] Figure 3 This is a schematic diagram of the rotating assembly of a machine tool holder for quick tool changing, as proposed in this utility model.
[0028] Figure 4 This is a schematic diagram of the tool structure of a machine tool tool holder for quick tool changing, as proposed in this utility model.
[0029] Legend:
[0030] 1. Cutting tool; 2. First upright plate; 3. Top plate; 4. Second upright plate; 5. Screw; 6. Shaft; 7. Rotating assembly; 71. Motor; 72. First conical wheel; 73. Second conical wheel; 8. Disassembly assembly; 81. Torque; 82. Spring; 83. Bolt; 84. Nut; 9. Crossbar; 10. Hole. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Reference Figures 1-2The present invention provides an embodiment of a machine tool holder for quick tool replacement, comprising a tool 1, a first vertical plate 2 for providing support to a rotating shaft 6 slidably connected to the outer wall of the tool 1, a top plate 3 fixedly connected to the top of the first vertical plate 2, a second vertical plate 4 fixedly connected to the bottom of the top plate 3, a screw 5 for mounting the entire tool holder on the machine tool being threaded inside the second vertical plate 4, a rotating assembly 7 for rotating the tool 1 being provided on the top of the top plate 3, a rotating shaft 6 slidably connected to the outer wall of the tool 1, the rotating shaft 6 being located in the middle of the opposite surfaces of the first vertical plate 2 and the second vertical plate 4, a disassembly assembly 8 for conveniently disassembling the tool 1 being provided on the outer wall of the rotating shaft 6, and the outer wall of the rotating shaft 6 being rotatably connected to the inner wall of the second vertical plate 4;
[0033] The disassembly assembly 8 includes a knob 81. Inside the knob 81, a bolt 83 is elastically connected via a spring 82 to secure the tool 1 inside the shaft 6. The outer wall of the bolt 83 is connected through the shaft 6. A groove is provided inside the shaft 6 to facilitate the sliding of the tool 1 within the shaft 6. A nut 84 is threaded onto the outer wall of the bolt 83 to tighten it. The outer wall of the knob 81 fits against the outer wall of the shaft 6. An opening is provided in the outer wall of the shaft 6, and the size of the knob 81 is larger than the size of the opening. A slot is provided on the outer wall of the rear end of the tool 1, and the threaded... The outer wall of bolt 83 is connected through the inside of the slot. One end of spring 82 is fixedly connected to the inside of knob 81, and the other end of spring 82 is fixedly connected to the rear wall of bolt 83. When the tool 1 is to be disassembled, the nut 84 is loosened with a tool. Bolt 83, which passes through shaft 6 and tool 1, pops outward under the elasticity of spring 82 on the outer wall of shaft 6. Then, tool 1 is pulled out and replaced with a new tool 1. Tool 1 is inserted into shaft 6. Then, knob 81 is manually rotated to insert it into shaft 6 and tool 1. Finally, bolt 83 is fixed with nut 84.
[0034] Reference Figures 2-4 The outer wall of the first upright plate 2 has several holes 10. A crossbar 9 is rotatably connected inside the holes 10. The crossbar 9 rotates inside the holes 10 to enhance the stability of the tool 1 during rotation. The front wall of the crossbar 9 is fixedly connected to the rear wall of the tool 1. The rotating assembly 7 includes a motor 71. The output shaft of the motor 71 is fixedly connected to a first conical wheel 72. The motor 71 provides transmission to the tool 1. A second conical wheel 73 is meshed with the outer wall of the first conical wheel 72. The outer wall of the first conical wheel 72 is rotatably connected to the inside of the top plate 3. The inside of the second conical wheel 73 is fixedly connected to the rotating shaft 6. When the tool 1 is to be rotated, the motor 71 is turned on, causing the first conical wheel 72 to rotate, which in turn drives the second conical wheel 73 to rotate, which in turn drives the rotating shaft 6 fixed on the second conical wheel 73 to rotate, and then causes the tool 1 to rotate simultaneously.
[0035] Working principle: When disassembling the tool 1, loosen the nut 84 with a tool. The bolt 83, which passes through the shaft 6 and the tool 1, will pop out under the elasticity of the spring 82 on the outer wall of the shaft 6. Then, pull out the tool 1 and replace it with a new tool 1. Insert the tool 1 into the shaft 6 and manually turn the knob 81 to insert it into the shaft 6 and the tool 1. Then, fix the bolt 83 with the nut 84. When the tool 1 is to be rotated, turn on the motor 71, so that the first cone wheel 72 rotates and drives the second cone wheel 73, which is engaged with it, to rotate at the same time. This drives the shaft 6, which is fixed on the second cone wheel 73, to rotate, and then the tool 1 rotates at the same time.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A quick-change tool machine tool holder comprising a tool (1), characterized in that: The outer wall of the cutter (1) is slidably connected with a first vertical plate (2), the top of the first vertical plate (2) is fixedly connected with a top plate (3), the bottom of the top plate (3) is fixedly connected with a second vertical plate (4), the inner thread of the second vertical plate (4) is connected with a screw (5), the top of the top plate (3) is provided with a rotating assembly (7), the outer wall of the cutter (1) is slidably connected with a rotating shaft (6), the outer wall of the rotating shaft (6) is provided with a disassembly assembly (8), and the outer wall of the rotating shaft (6) is rotatably connected with the inner wall of the second vertical plate (4). The disassembly assembly (8) comprises a rotating handle (81), the inner thread of the rotating handle (81) is elastically connected with a bolt (83) through a spring (82), the outer wall of the bolt (83) penetrates and is connected with the rotating shaft (6), and the outer wall of the bolt (83) is threadedly connected with a nut (84).
2. A quick-change tool post for a machine tool according to claim 1, characterized in that: The outer wall of the rotating handle (81) is attached to the outer wall of the rotating shaft (6).
3. The quick-change tool post of claim 1, wherein: The rear end of the cutter (1) is provided with a slot, and the outer wall of the bolt (83) penetrates and is connected in the slot.
4. The quick-change tool post of claim 1, wherein: One end of the spring (82) is fixedly connected in the rotating handle (81), and the other end of the spring (82) is fixedly connected to the rear wall of the bolt (83).
5. The quick-change tool post of claim 1, wherein: The outer wall of the first vertical plate (2) is provided with a hole (10), the inner hole of the hole (10) is rotatably connected with a cross rod (9), and the front wall of the cross rod (9) is fixedly connected with the rear wall of the cutter (1).
6. A quick-change tool post for a machine tool according to claim 1, characterized in that: The rotating assembly (7) comprises a motor (71), the output shaft of the motor (71) is fixedly connected with a first bevel gear (72), and the outer wall of the first bevel gear (72) is engaged with a second bevel gear (73).
7. A quick-change tool post for a machine tool according to claim 6, characterised in that: The outer wall of the first bevel gear (72) is rotatably connected in the top plate (3).
8. A quick-change tool post for a machine tool according to claim 6, characterized in that: The inner thread of the second bevel gear (73) is fixedly connected with the rotating shaft (6).