Modularized interface device for quick-change tool rest of precision automatic lathe

By incorporating structural designs such as magnetic plates and limiting claws, the problem of low tool changing efficiency in Swiss-type lathes has been solved, enabling rapid fixing and disassembly, thereby improving machining accuracy and production efficiency.

CN224157772UActive Publication Date: 2026-04-24XIAMEN HONGHENG IND & TRADE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAMEN HONGHENG IND & TRADE CO LTD
Filing Date
2025-05-21
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

The existing Swiss-type lathe tooling has low replacement efficiency, and it is difficult to disassemble and install it quickly, which affects production efficiency and machining accuracy.

Method used

The design incorporates a magnetic plate and a limiting claw, allowing for quick fixing and disassembly of the tool and tool holder through the magnetic plate's adsorption connection with the square rod and the locking action of the limiting claw. Rubber pads further enhance stability.

Benefits of technology

It improves the efficiency and stability of tool changing, reduces the difficulty of tool changing, and ensures machining accuracy and equipment operation stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a modular interface device for a quick-change tool rest of a precision automatic lathe, which belongs to the technical field of precision automatic lathe accessories and comprises a tool rest component, tool fixing components are clamped on the tool rest component in an array manner, the tool rest component comprises a fixing plate, blind holes are formed in the fixing plate in an array manner, and square holes are formed in the middles of the interiors of the blind holes. The tool fixing assembly comprises a fixing rod, a conical chuck is fixedly installed at one end of the fixing rod, a square rod is fixedly installed at the other end of the fixing rod, the square rod is inserted into the square hole, and an external tool is clamped and fixed through the conical chuck. The tool fixing assembly and the tool rest assembly are connected, the fixing effect between the tool rest assembly and the tool fixing assembly is improved through the limiting claw and the clamping claw, the rubber pad is matched, rotation of the adjusting ring is avoided, the connection stability is improved, and the tool rest assembly and the tool fixing assembly can be rapidly assembled conveniently.
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Description

Technical Field

[0001] This utility model relates to the technical field of Swiss-type lathe parts, and in particular to a modular interface device for quick-change tool holders of Swiss-type lathes. Background Technology

[0002] A Swiss-type CNC lathe, also known as a sliding headstock lathe, is a high-efficiency and precision machining equipment widely used in various industries. It is commonly used for mass production of small parts from bar stock. During machining, the material moves and rotates while multiple cutting tools are fixed within the machining chamber. By adjusting the material's position, it contacts the cutting tools to complete various machining processes such as turning, milling, drilling, boring, tapping, and engraving. This significantly shortens the product manufacturing process chain, improves production efficiency, and avoids error accumulation caused by positioning datum conversion by reducing the number of clamping operations, ensuring machining accuracy. However, with prolonged use, tool wear between the cutting tools and the workpiece necessitates tool replacement. Most cutting tools on modern Swiss-type lathes are mounted on the tool holder using screws or threads. After prolonged machining, the force on the cutting tools often causes the connection to tighten and lock, making disassembly difficult and affecting the efficiency of tool replacement. This makes it inconvenient to remove the cutting tools from the tool holder. Utility Model Content

[0003] To overcome the technical defects of the existing technology, this utility model provides a modular interface device for quick-change tool holder of Swiss-type lathe, which facilitates the separation of the tool from the tool holder, makes assembly easier, improves tool changing efficiency, and reduces the difficulty of tool changing.

[0004] The technical solution adopted by this utility model is: a modular interface device for quick-change tool holders of a Swiss-type lathe, including a tool holder assembly. Tool fixing components are arrayed and snapped onto the tool holder assembly. The tool holder assembly includes a fixing plate with blind holes arrayed on it. A square hole is formed in the center of each blind hole, and a magnet plate is fixedly installed inside the square hole. The tool fixing components include a fixing rod, with a tapered chuck fixedly installed at one end and a square rod fixedly installed at the other end. The square rod is inserted into the square hole and is attracted to the magnet plate. In use, several tools are first... The fixing component is assembled with an external tool and kept as a spare. When the tool fixing component is assembled with the external tool, the external tool is mounted on the fixing rod through the conical chuck, so that the tool fixing component and the tool form a modular whole. The tool fixing component carrying the tool is mounted on the tool holder assembly for workpiece machining. During assembly, the fixing rod is inserted into the blind hole, and the square rod is inserted into the square hole to restrict the rotation of the fixing rod and allow the magnetic plate to attract the square rod, improving the positioning effect during assembly and facilitating replacement.

[0005] Preferably, a groove is provided on one side of the square rod to match the magnet plate, and the magnet plate is located inside the groove. The groove improves the adsorption stability when the magnet plate and the square rod are adsorbed.

[0006] Preferably, the fixing plate has symmetrically arranged mounting countersunk holes. The fixing plate is fixedly connected to the external Swiss-type machine through the mounting countersunk holes. With the help of external bolts, the fixing plate can be easily installed on the external Swiss-type machine through the mounting countersunk holes.

[0007] Preferably, a nozzle is fixedly installed on one side of the fixing plate above the blind hole, and a connecting nozzle is fixedly installed on one side of the fixing plate. The connecting nozzle is connected to the nozzle. By connecting an external jetting device or oil spraying device to the connecting nozzle, gas or circulating oil is sprayed out from the nozzle when processing the workpiece, thereby improving the service life of the tool.

[0008] Preferably, a connecting plate is fixedly installed on one side of the blind hole on the fixing plate, and a limiting claw is fixedly installed on the connecting plate in a circumferential array. The limiting claw has an L-shaped structure and an arc-shaped structure on its outer side. Through the limiting claw, after the tool fixing assembly is installed on the tool holder assembly, the tool fixing assembly is limited to prevent it from being pulled out of the blind hole, thereby improving the stability of the tool during use.

[0009] Preferably, an adjusting ring is rotatably mounted on the fixed rod, and a cleaver is fixedly mounted on the adjusting ring in a circumferential array. The cleaver engages with the limiting cleaver. After the tool fixing assembly is installed on the blind hole, the adjusting ring is rotated so that the cleaver engages with the limiting cleaver, which improves the stability of the tool when machining the workpiece and facilitates assembly.

[0010] Preferably, a rubber pad is fixedly installed on the inner side of the claw, and one side of the rubber pad is pressed against the outer side of the limiting claw. When the adjusting ring is rotated, the rubber pad is pressed against the outer side of the limiting claw, causing the rubber pad to deform, thereby increasing the friction between the limiting claw and the claw and improving the stability during use.

[0011] Preferably, the outer side of the adjusting ring is uniformly provided with anti-slip texture to facilitate the rotation of the adjusting ring, and one side of the rubber pad has a wedge-shaped structure to facilitate the rubber pad to be pressed tightly against one side of the limiting claw.

[0012] The beneficial effects of this utility model are as follows: the external tool is clamped and fixed by a conical chuck. When the tool needs to be assembled onto the Swiss-type machine, the tool fixing component is connected to the tool holder component. The square hole and magnetic plate facilitate quick positioning and restrict rotation of the tool fixing component. The limiting claw and chuck improve the fixing effect between the tool holder component and the tool fixing component. The rubber pad prevents the adjusting ring from rotating, improving the connection stability and facilitating quick assembly between the tool holder component and the tool fixing component. This forms a tool module between the external tool and the tool fixing component, improving the modular replacement effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the tool holder assembly in this utility model.

[0015] Figure 3 This is a schematic diagram of the tool fixing assembly in this utility model.

[0016] Figure 4 This utility model Figure 3 A magnified structural diagram of location A in the middle.

[0017] Figure 5 This is a structural schematic diagram of the tool fixing assembly from another angle in this utility model.

[0018] Explanation of reference numerals in the attached figures: 1. Tool holder assembly; 101. Fixing plate; 102. Blind hole; 103. Square hole; 104. Magnet plate; 105. Mounting countersunk hole; 106. Nozzle; 107. Connecting nozzle; 108. Connecting plate; 109. Limiting claw; 2. Tool fixing assembly; 201. Fixing rod; 202. Conical chuck; 203. Square rod; 204. Groove; 205. Adjusting ring; 206. Clamping claw; 207. Rubber pad. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] like Figures 1-5 As shown, this embodiment provides a modular interface device for quick-change tool holders of a Swiss-type lathe, including a tool holder assembly 1. Tool fixing assemblies 2 are arrayed and snapped onto the tool holder assembly 1. The tool holder assembly 1 includes a fixing plate 101 with blind holes 102 arrayed on it. A square hole 103 is formed in the center of each blind hole 102, and a magnet plate 104 is fixedly installed inside the square hole 103. The tool fixing assemblies 2 include a fixing rod 201. A tapered collet 202 is fixedly installed at one end of the fixing rod 201, and a square rod 203 is fixedly installed at the other end. The square rod 203 is inserted into the square hole 103 and is attracted to the magnet plate 104. In use, several tool fixing assemblies 2 are first assembled with external tools. The tool fixing assembly 2 is reserved for backup. When assembling with an external tool, the external tool is mounted on the fixing rod 201 through the tapered chuck 202, so that the tool fixing assembly 2 and the tool form a modular whole. The tool holder assembly 1 is fixedly connected to the external Swiss-type machine. The tool fixing assembly 2 carrying the tool is mounted on the tool holder assembly 1 for workpiece processing. During assembly, the fixing rod 201 is inserted into the blind hole 102, and the square rod 203 is inserted into the square hole 103 to restrict the rotation of the fixing rod 201. The magnetic plate 104 is attracted to the square rod 203 to improve the positioning effect during assembly and facilitate the removal and replacement of the tool fixing assembly 2 from the tool holder assembly 1.

[0021] As a technical optimization solution of this utility model, specifically as follows: Figure 2As shown, a groove 204 matching the magnet plate 104 is provided on one side of the square rod 203. The magnet plate 104 is located inside the groove 204. The groove 204 improves the adsorption stability when the magnet plate 104 and the square rod 203 are attracted, facilitating quick insertion into the square hole 103. The fixing plate 101 has symmetrically arranged countersunk holes 105. The fixing plate 101 is fixedly connected to the external sliding headstock through the countersunk holes 105. The countersunk holes 105, combined with external bolts, facilitate... The fixing plate 101 is installed on the external Swiss-type lathe for easy fixation. A nozzle 106 is fixedly installed on one side of the fixing plate 101 above the blind hole 102. A connecting nozzle 107 is fixedly installed on one side of the fixing plate 101. The connecting nozzle 107 is connected to the nozzle 106. By connecting the external air jet device or oil jet device to the connecting nozzle 107, gas or circulating oil is sprayed out from the nozzle 106 when the workpiece is being processed, so as to clean or cool the processing position and improve the service life of the tool.

[0022] As a technical optimization solution of this utility model, specifically as follows: Figures 2 to 5As shown, a connecting plate 108 is fixedly installed on one side of the blind hole 102 on the fixing plate 101. Limiting claws 109 are fixedly installed in a circumferential array on the connecting plate 108. The limiting claws 109 have an L-shaped structure, and their outer sides are arc-shaped. Through the limiting claws 109, after the tool fixing assembly 2 is installed on the tool holder assembly 1, the tool fixing assembly 2 is limited, preventing it from being pulled out of the blind hole 102, thus improving the stability of the tool during use. An adjusting ring 205 is rotatably installed on the fixing rod 201. Clamping claws 206 are fixedly installed in a circumferential array on the adjusting ring 205. The clamping claws 206 engage with the limiting claws 109. After the tool fixing assembly 2 is installed on the blind hole 102, rotating the adjusting ring 205 causes the clamping claws 206 to engage with the limiting claws 109, thereby preventing the fixing rod 201 from being pulled out of the blind hole 102, improving the stability of the tool during workpiece machining, and facilitating installation. During disassembly, rotating the adjusting ring 205 in the reverse direction allows the tool fixing assembly 2 to be pulled out from the tool holder assembly 1. A rubber pad 207 is fixedly installed on the inner side of the chuck 206, and one side of the rubber pad 207 is pressed against the outer side of the limiting pawl 109. Rotating the adjusting ring 205 causes the rubber pad 207 to be pressed against the outer side of the limiting pawl 109, resulting in deformation of the rubber pad 207 and thus increasing the friction between the limiting pawl 109 and the chuck 206. To prevent the adjusting ring 205 from rotating due to tool vibration during workpiece processing, thus avoiding the separation of the limiting pawl 109 from the chuck 206, and improving stability during use, the outer side of the adjusting ring 205 is uniformly provided with anti-slip textures, and one side of the rubber pad 207 has a wedge-shaped structure. The anti-slip textures facilitate the rotation of the adjusting ring 205, and the wedge-shaped rubber pad 207 facilitates the pressing of the rubber pad 207 against one side of the limiting pawl 109.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this invention. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications may be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A modular interface device for quick-change tool post of a Swiss-type lathe, characterized in that: The tool holder assembly (1) includes a tool holder assembly (1) on which a tool fixing assembly (2) is attached in an array. The tool holder assembly (1) includes a fixing plate (101) with blind holes (102) arranged in an array on the fixing plate (101). A square hole (103) is provided in the middle of the blind hole (102), and a magnet plate (104) is fixedly installed inside the square hole (103). The tool fixing assembly (2) includes a fixing rod (201). A tapered chuck (202) is fixedly installed at one end of the fixing rod (201), and a square rod (203) is fixedly installed at the other end of the fixing rod (201). The square rod (203) is inserted into the square hole (103) and is attracted to the magnet plate (104).

2. The modular interface device for quick-change tool post of a Swiss-type lathe according to claim 1, characterized in that: The square rod (203) has a groove (204) on one side that matches the magnet plate (104), and the magnet plate (104) is located inside the groove (204).

3. The modular interface device for quick-change tool post of a Swiss-type lathe according to claim 1, characterized in that: The fixing plate (101) has symmetrically arranged mounting countersunk holes (105), and the fixing plate (101) is fixedly connected to the external Swiss-type machine through the mounting countersunk holes (105).

4. The modular interface device for quick-change tool post of a Swiss-type lathe according to claim 1, characterized in that: A nozzle (106) is fixedly installed on one side of the fixing plate (101) above the blind hole (102), and a connecting nozzle (107) is fixedly installed on one side of the fixing plate (101), and the connecting nozzle (107) is connected to the nozzle (106).

5. The modular interface device for quick-change tool post of a Swiss-type lathe according to claim 1, characterized in that: A connecting plate (108) is fixedly installed on the fixed plate (101) on one side of the blind hole (102), and a limiting claw (109) is fixedly installed on the connecting plate (108) in a circumferential array. The limiting claw (109) has an L-shaped structure, and the outer side of the limiting claw (109) has an arc-shaped structure.

6. The modular interface device for quick-change tool post of a Swiss-type lathe according to claim 5, characterized in that: An adjusting ring (205) is rotatably mounted on the fixed rod (201), and a claw (206) is fixedly mounted on the adjusting ring (205) in a circumferential array. The claw (206) is engaged with the limiting claw (109).

7. The modular interface device for quick-change tool post of a Swiss-type lathe according to claim 6, characterized in that: A rubber pad (207) is fixedly installed on the inner side of the claw (206), and one side of the rubber pad (207) is pressed against the outer side of the limiting claw (109).

8. The modular interface device for quick-change tool post of a Swiss-type lathe according to claim 7, characterized in that: The outer side of the adjusting ring (205) is uniformly provided with anti-slip texture, and one side of the rubber pad (207) is a wedge-shaped structure.