Feeding tool rest with fine adjustment function for machining
By introducing a combination structure of lead screw, square block and U-shaped plate into the feed tool holder, the tool position can be finely adjusted and easily disassembled, which solves the machining accuracy problem caused by tool wear and improves machining accuracy and the convenience of tool replacement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-04-07
AI Technical Summary
After prolonged use, existing feed tool holders suffer severe wear due to frequent contact between the tool and the workpiece, leading to changes in the cutting depth and affecting machining accuracy.
A feed tool holder with fine-tuning function was designed. Through the combination structure of lead screw, square block, slide and U-shaped plate, the tool position can be finely adjusted and easily disassembled. The rotation of lead screw drives the square block and U-shaped plate to move, so as to achieve precise compensation of tool position and convenient replacement.
To ensure dimensional accuracy, improve tool stability and ease of use, reduce tool wear, and enable quick tool disassembly and installation.
Smart Images

Figure CN224087987U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of feed tool holder technology, specifically a feed tool holder with fine adjustment function for machining. Background Technology
[0002] Machining is a manufacturing process that uses mechanical equipment to process materials to change their shape, size, surface quality, or properties. It is an indispensable part of modern industrial production and is widely used in many fields such as machinery manufacturing, automobiles, aerospace, and electronics. Lathes are typically used in machining, and the feed tool post is an important component of a lathe.
[0003] Existing feed tool holders, after prolonged use, suffer from severe tool wear due to frequent contact between the tool and the high-speed rotating workpiece. This alters the cutting depth, leading to deviations between the machined workpiece dimensions and the design dimensions, thus affecting dimensional accuracy. Therefore, a feed tool holder with fine-tuning capabilities is needed to address these issues by precisely adjusting the tool position. Utility Model Content
[0004] To overcome the above-mentioned defects, this utility model provides a feed tool holder with fine adjustment function for machining, which solves the problem that after long-term use, the existing feed tool holders will wear out severely due to the frequent contact between the tool and the high-speed rotating workpiece, which will change the cutting depth and cause the workpiece size to deviate from the design size, thus affecting the dimensional accuracy.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a feed tool holder with fine-tuning function for machining, comprising a base plate, mounting holes on the base plate, four lead screws rotatably connected to the base plate, the lead screws being rotatably connected to the base plate via bearings, square blocks threaded onto the lead screws, a U-shaped plate fixedly connected to the top of the square blocks, two screws threaded onto the top of the U-shaped plate, the two screws being symmetrically arranged about the middle of the U-shaped plate, tool bodies being disposed inside the U-shaped plate, the number of tool bodies being four, four sliding grooves being formed on the base plate, and the square blocks being slidably connected inside the sliding grooves.
[0006] As a further embodiment of this utility model: the tool body is located at the bottom end of the two screws, and the U-shaped plate is located at the top of the base plate.
[0007] As a further embodiment of this utility model: a protective pad is fixedly connected to the bottom end of the screw, and the protective pad is made of plastic.
[0008] As a further embodiment of this utility model: a second knob is fixedly connected to the top of the screw, and the second knob has several grooves.
[0009] As a further embodiment of this utility model: a first knob is fixedly connected to one end of the lead screw, and the first knob has several grooves.
[0010] As a further embodiment of this utility model: the mounting hole is located in the middle of the base plate, and the four sliding grooves are respectively located around the mounting hole.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] 1. This machine uses a feed tool holder with fine-tuning function. It consists of a lead screw, a square block, a slide groove, a U-shaped plate, and the tool body. When fine-tuning of the tool body's position is needed, rotating the first knob drives the lead screw to rotate. Since the square block is threaded onto the lead screw and is limited by the slide groove, it does not rotate with the lead screw. Therefore, as the lead screw rotates, the square block moves, causing the U-shaped plate and the tool body to move, thus fine-tuning the tool body's position. This feed tool holder uses the rotation of the lead screw to move the tool body, thereby completing the fine-tuning of the tool body's position. This compensates for tool body wear and ensures the accuracy of machining dimensions.
[0013] 2. This machine uses a feed tool holder with fine-tuning function. By configuring a screw, a U-shaped plate, and the tool body, when the tool body needs to be disassembled, rotating the second knob drives the screw to rotate. Since the screw is threaded onto the U-shaped plate, it moves upwards as it rotates, moving away from the tool body and releasing its fixed state. When the tool body needs to be installed, first place it inside the U-shaped plate. Then, rotating the second knob in the opposite direction drives the screw to rotate. As the screw rotates, it moves downwards, bringing it closer to the tool body and securing it, thus completing the tool body installation. This feed tool holder, with its modular tool body, facilitates disassembly and installation, making tool body replacement easy. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a structural schematic diagram of the cross-section of the base plate of this utility model;
[0016] Figure 3 This is a three-dimensional structural diagram of the screw of this utility model;
[0017] In the diagram: 1. Base plate; 2. U-shaped plate; 3. Tool body; 4. First knob; 5. Lead screw; 6. Square block; 7. Screw; 8. Mounting hole; 9. Slide groove; 10. Second knob; 11. Protective pad. Detailed Implementation
[0018] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0019] like Figure 1-3 As shown, this utility model provides a technical solution: a feed tool holder with fine adjustment function for machining, including a base plate 1, mounting holes 8 on the base plate 1, four lead screws 5 rotatably connected to the base plate 1, the lead screws 5 being rotatably connected to the base plate 1 through bearings, and a first knob 4 fixedly connected to one end of the lead screw 5. The first knob 4 has several grooves. Because the first knob 4 has several grooves, it can increase friction, making it convenient for personnel to rotate the first knob 4 and improving the ease of operation.
[0020] A square block 6 is threaded onto the lead screw 5. A U-shaped plate 2 is fixedly connected to the top of the square block 6. Two screws 7 are threaded onto the top of the U-shaped plate 2. Because of the screws 7, when the screws 7 are rotated, the screws 7 can move down and approach the tool body 3 to fix the tool body 3, thereby improving the stability of the tool body 3. A protective pad 11 is fixedly connected to the bottom of the screw 7. The protective pad 11 is made of plastic. The protective pad 11 prevents the screw 7 from directly contacting the tool body 3. At the same time, because the protective pad 11 is made of plastic, it can protect the tool body 3 and reduce the damage to the tool body 3. In addition, the protective pad 11 can increase the friction between the screw 7 and the tool body 3, which can effectively prevent the tool body 3 from sliding, thereby improving the stability of the tool body 3.
[0021] Two screws 7 are symmetrically arranged about the middle of the U-shaped plate 2. The U-shaped plate 2 is equipped with a tool body 3, which is located at the bottom of the two screws 7. The U-shaped plate 2 is located at the top of the base plate 1. There are four tool bodies 3. The base plate 1 is provided with four sliding grooves 9. Because of the sliding grooves 9, the square block 6 is limited by the sliding grooves 9, so the square block 6 will not rotate with the lead screw 5. Therefore, when the lead screw 5 rotates, the square block 6 can move. At the same time, when the square block 6 moves, the sliding grooves 9 play a role in limiting and guiding the square block 6, improving the stability of the movement of the square block 6.
[0022] The square block 6 is slidably connected inside the slide groove 9. The top of the screw 7 is fixedly connected to the second knob 10. The second knob 10 has several grooves. The mounting hole 8 is located in the middle of the base plate 1. The four slide grooves 9 are located around the mounting hole 8.
[0023] The working principle of this utility model is as follows:
[0024] When it is necessary to disassemble the tool body 3, turn the second knob 10 to drive the screw 7 to rotate. Since the screw 7 is threaded onto the U-shaped plate 2, it can move upwards while rotating, thereby moving the screw 7 away from the tool body 3 and releasing the tool body 3 from its fixed state. At this time, the tool body 3 can be disassembled. When it is necessary to install the tool body 3, first place the tool body 3 inside the U-shaped plate 2. Then, turn the second knob 10 in the opposite direction to drive the screw 7 to rotate. As the screw 7 rotates, it can move downwards, thereby moving the screw 7 closer to the tool body 3 and fixing the tool body 3, thus completing the installation of the tool body 3.
[0025] When it is necessary to fine-tune the position of the tool body 3, turn the first knob 4 to drive the lead screw 5 to rotate. Since the square block 6 is threaded onto the lead screw 5 and is limited by the slide groove 9, the square block 6 will not rotate with the lead screw 5. Therefore, when the lead screw 5 rotates, the square block 6 will move and drive the U-shaped plate 2 and the tool body 3 to move, thereby fine-tuning the position of the tool body 3.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.
Claims
1. A feed tool holder with fine-tuning function for machining, comprising a base plate (1), characterized in that: The base plate (1) has mounting holes (8) and four lead screws (5) are rotatably connected to the base plate (1). The lead screws (5) are rotatably connected to the base plate (1) through bearings. A square block (6) is threaded onto the lead screw (5). A U-shaped plate (2) is fixedly connected to the top of the square block (6). Two screws (7) are threaded onto the top of the U-shaped plate (2). The two screws (7) are symmetrically arranged about the middle of the U-shaped plate (2). A tool body (3) is provided inside the U-shaped plate (2). There are four tool bodies (3). The base plate (1) has four sliding grooves (9). The square block (6) is slidably connected inside the sliding groove (9).
2. The feed tool holder with fine-tuning function for machining according to claim 1, characterized in that: The cutter body (3) is located at the bottom of the two screws (7), and the U-shaped plate (2) is located at the top of the base plate (1).
3. A feed tool holder with fine-tuning function for machining according to claim 1, characterized in that: The bottom end of the screw (7) is fixedly connected to a protective pad (11), which is made of plastic.
4. A feed tool holder with fine-tuning function for machining according to claim 1, characterized in that: The top end of the screw (7) is fixedly connected to a second knob (10), and the second knob (10) has several grooves.
5. A feed tool holder with fine-tuning function for machining according to claim 1, characterized in that: One end of the lead screw (5) is fixedly connected to a first knob (4), and the first knob (4) has several grooves.
6. A feed tool holder with fine-tuning function for machining according to claim 1, characterized in that: The mounting hole (8) is located in the middle of the base plate (1), and the four grooves (9) are located around the mounting hole (8).