Quick replacement device for lathe tool

Abstract

The utility model relates to the technical field of lathe tools, and discloses a lathe tool quick replacement device which comprises an installation block, three convex sliding grooves are formed in the surface of the installation block, the inner walls of the three convex sliding grooves are connected with three convex sliding blocks in a sliding mode, and the convex sliding blocks are connected with the installation block in a sliding mode. The top ends of the three convex sliding blocks are fixedly connected with moving blocks, and the number of the moving blocks is three. The cutter body is arranged in the mounting groove of the mounting block, the three clamping blocks are driven by the electric telescopic rod to contract inwards, the tail ends of the clamping blocks make contact with the surface of the cutter, the cutter is kept fixed, the limiting ring and the fixing block support the electric telescopic rod, the structural stability is ensured, and the electric telescopic rod contracts, so that the cutter is fixed. The moving block is pulled to slide outwards along the convex sliding groove, the clamping block is driven to synchronously move outwards, the clamping force on the tool is relieved, an old tool is manually taken out, a new tool is manually placed into the mounting groove, and the electric telescopic rod extends to push the moving block to slide inwards along the convex sliding groove.

Description

Technical Field

[0001] This utility model relates to the field of lathe tool technology, and in particular to a quick-change device for lathe tools. Background Technology

[0002] In the field of metal processing, lathes are machine tools that perform cutting operations by rotating the workpiece and using a fixed cutting tool (or rotating the cutting tool and using a fixed workpiece). As the core component directly involved in cutting, the performance and replacement efficiency of the cutting tool directly affect machining accuracy, production efficiency, and cost. In traditional lathe machining, tool changing usually relies on manual operation, which is cumbersome and time-consuming. Especially in scenarios with multiple product types and small batch production, frequent tool changes lead to significant efficiency losses. As the manufacturing industry moves towards automation and intelligence, automated tool changing devices are gradually becoming a key technology for improving lathe efficiency. Existing devices are mostly based on mechanical structures (such as cam mechanisms, gear racks) or pneumatic / hydraulic drives, using fixed tracks or rotating arms to switch tools.

[0003] Single-point or two-point clamping methods can easily lead to uneven force on the tool, causing the tool to loosen during cutting vibration, resulting in machining errors or even chipping. The clamping force control is rough and it is difficult to automatically adjust according to the tool size, resulting in problems of being too tight (damaging the tool) or too loose (risk of falling off). Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a quick tool changing device for lathes.

[0005] This utility model is achieved by the following technical solution: a quick tool changing device for lathes, including a mounting block, the surface of which is provided with a convex groove, three convex grooves are provided, the inner walls of the three convex grooves are slidably connected to convex sliders, three convex sliders are provided, and the top ends of the three convex sliders are fixedly connected to moving blocks, three moving blocks are provided.

[0006] Through the above technical solution, the convex groove provides linear motion guidance for the moving block, preventing deviation or jamming, ensuring synchronous movement of the clamping block, and the symmetrical layout of the three grooves ensures balanced force on the moving block, improves motion stability, limits the stroke range of the moving block, and avoids mechanical interference or damage due to overextension. The moving block connects the electric telescopic rod and the clamping block, converting the telescopic motion into clamping force on the tool. The use of convex sliders and grooves reduces frictional resistance and improves response speed. The linkage design of the three moving blocks ensures that the clamping block moves towards or away from the tool synchronously, achieving uniform force application.

[0007] As a further improvement to the above solution, the top of the mounting block is provided with a mounting groove, and the tool body is disposed inside the mounting groove.

[0008] Through the above technical solution, the mounting slot provides a precise mounting position for the tool body, ensuring that the tool axis is coaxial with the lathe spindle after tool change. The slot size is standardized, compatible with multiple tool models, reducing adaptation costs. During tool change, the tool is completely retracted into the slot, avoiding bumps and damage.

[0009] As a further improvement to the above solution, a limit ring is fixedly connected to the top of the mounting block.

[0010] Through the above technical solution, the limiting ring is fixed to the top of the mounting block to prevent the moving block from dislodging from the slide groove and avoid damage to the mechanism due to accidental impact. This enhances the local strength of the mounting block and extends the service life of the device. In conjunction with the fixed block, it clearly defines the installation boundaries of the electric telescopic rod, improving assembly efficiency.

[0011] As a further improvement to the above solution, a fixing block is fixedly connected to the inner wall of the limiting ring. Three fixing blocks are provided. An electric telescopic rod is fixedly connected to one end of the three fixing blocks that are close to each other. Three electric telescopic rods are provided. Three moving blocks are fixedly connected to one end of the three electric telescopic rods that are close to each other.

[0012] Through the above technical solution, the fixed block provides a solid mounting base for the electric telescopic rod, ensuring that the telescopic direction is consistent with the movement axis of the moving block. The three fixed blocks are symmetrically distributed, simplifying the coordinated control of multiple telescopic rods, reducing debugging complexity, and evenly distributing the pushing and pulling force of the electric telescopic rod to avoid local stress concentration. The electric telescopic rod controls the telescopic action through electrical signals, realizing the rapid response (clamping / releasing) of the clamping block, replacing manual operation. The three telescopic rods extend and retract synchronously, ensuring the consistency of the clamping block's action, avoiding eccentric force on the tool, and the telescopic amount can be adjusted according to the tool size to adapt to the tool replacement needs of different lengths.

[0013] As a further improvement to the above solution, a clamping block is fixedly connected to one end of each of the three moving blocks that are close to each other. There are three clamping blocks, and the one end of each of the three clamping blocks that is close to each other is in contact with the surface of the tool body.

[0014] Through the above technical solution, the three clamping blocks approach the tool synchronously from a 120° direction, achieving multi-point uniform force application to prevent tool deformation or wear. The ends make point or line contact with the tool surface, reducing stress concentration and protecting the tool cutting edge. When the electric telescopic rod retracts, the clamping blocks move outward synchronously, instantly releasing the clamping state and facilitating tool replacement.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention uses an electric telescopic rod to drive the moving block and clamping block to move synchronously, achieving rapid clamping and release of the tool, significantly shortening tool change time and improving lathe working efficiency. The three clamping blocks clamp the tool synchronously from three directions, with uniform force, avoiding tool deviation or loosening caused by single-point force, thus improving machining accuracy. The convex groove provides stable guidance for the moving block, and the limit ring restricts the stroke range to prevent the moving block from coming off, enhancing the reliability and durability of the device.

[0017] This utility model replaces manual adjustment with an electric telescopic rod, realizing automated clamping and release, reducing the intensity of manual operation and reducing errors. The three clamping blocks can be adapted to tools of different shapes, and the convex sliding groove structure is compatible with various installation requirements, making it widely applicable.

[0018] The modular design (convex groove, electric telescopic rod, and three clamping blocks) enables efficient tool changing. Combined with guiding, limiting, and synchronous drive technologies, it balances speed, stability, and adaptability, making it suitable for lathe machining scenarios with high-frequency tool changes. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the left end structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the bottom structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the top structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the convex slider structure of this utility model.

[0024] Explanation of key symbols:

[0025] 1. Mounting block; 2. Limiting ring; 3. Convex groove; 4. Fixing block; 5. Electric telescopic rod; 6. Moving block; 7. Convex slider; 8. Clamping block; 9. Tool body; 10. Mounting slot. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] Example:

[0028] Please combine Figure 1-5This embodiment of a lathe tool quick change device includes a mounting block 1. The surface of the mounting block 1 is provided with a convex groove 3. There are three convex grooves 3. The inner walls of the three convex grooves 3 are slidably connected to convex sliders 7. There are three convex sliders 7. The top ends of the three convex sliders 7 are fixedly connected to moving blocks 6. There are three moving blocks 6.

[0029] The top of the mounting block 1 has a mounting groove 10, and the tool body 9 is installed inside the mounting groove 10.

[0030] The top of the mounting block 1 is fixedly connected to a limit ring 2.

[0031] The inner wall of the limiting ring 2 is fixedly connected with a fixing block 4, and there are three fixing blocks 4.

[0032] Three fixed blocks 4 are fixedly connected to an electric telescopic rod 5 at their close ends. There are three electric telescopic rods 5, and three movable blocks 6 are fixedly connected to the close ends of the three electric telescopic rods 5.

[0033] Three moving blocks 6 are fixedly connected to clamping blocks 8 at their close ends. There are three clamping blocks 8, and the close ends of the three clamping blocks 8 are in contact with the surface of the tool body 9.

[0034] The implementation principle of a quick-change lathe tool device in this application embodiment is as follows: The tool body 9 is placed in the mounting groove 10 of the mounting block 1. The three clamping blocks 8 retract inward under the drive of the electric telescopic rod 5. The end of the clamping block 8 contacts the tool surface to keep the tool fixed. The limiting ring 2 and the fixing block 4 provide support for the electric telescopic rod 5 to ensure structural stability. The electric telescopic rod 5 retracts and pulls the moving block 6 to slide outward along the convex slide groove 3, driving the clamping block 8 to move outward synchronously, releasing the clamping force on the tool. The old tool is removed manually or by a robot, and a new tool is placed into the mounting groove 10. The electric telescopic rod 5 extends and pushes the moving block 6 to slide inward along the convex slide groove 3. The clamping block 8 approaches the tool from three directions and applies pressure evenly until it is firmly clamped. The cooperation between the convex slide groove 3 and the convex slider 7 ensures that the moving block 6 moves linearly and avoids jamming. The three electric telescopic rods 5 are driven synchronously to ensure that the clamping block 8 moves in a consistent manner, achieving fast and accurate clamping and release. The limiting ring 2 restricts the stroke of the moving block 6 to prevent excessive displacement from damaging the device.

[0035] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A quick-change device for lathe tools, characterized in that, The device includes a mounting block (1), the surface of which is provided with a convex groove (3), and three convex grooves (3) are provided. The inner walls of the three convex grooves (3) are slidably connected to convex sliders (7), and three convex sliders (7) are provided. The top ends of the three convex sliders (7) are fixedly connected to moving blocks (6), and three moving blocks (6) are provided.

2. The quick-change device for lathe tools as described in claim 1, characterized in that: The mounting block (1) has a mounting groove (10) at its top, and the tool body (9) is provided inside the mounting groove (10).

3. The quick-change device for lathe tools as described in claim 1, characterized in that: The top of the mounting block (1) is fixedly connected to a limit ring (2).

4. The quick-change device for lathe tools as described in claim 3, characterized in that: The inner wall of the limiting ring (2) is fixedly connected to a fixing block (4), and three fixing blocks (4) are provided.

5. A quick-change device for lathe tools as described in claim 4, characterized in that: An electric telescopic rod (5) is fixedly connected to one end of each of the three fixed blocks (4) that are close to each other. There are three electric telescopic rods (5), and three moving blocks (6) are fixedly connected to one end of each of the three electric telescopic rods (5) that are close to each other.

6. A quick-change device for lathe tools as described in claim 5, characterized in that: Three clamping blocks (6) are fixedly connected to each other at one end. There are three clamping blocks (8). The ends of the three clamping blocks (8) that are close to each other are in contact with the surface of the tool body (9).

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