A rotary table for a turning machine

Abstract

The utility model discloses a switching disc for lathe, belongs to lathe processing technical field, including the top, the bottom fixedly connected with base of top cover, the fixedly connected with a plurality of groups first limit post and second limit post on base, a plurality of second limit post outer wall rotationally connected with closing block, every group closing block other end rotationally connected with linkage lever, every group linkage lever other end all with the rotationally connected of connecting hole inner wall, a plurality of connecting hole is set up on linkage ring, linkage ring outer wall and base inner wall rotationally connected. The utility model discloses through the control linkage ring rotation of adjusting block, and then drives four linkage lever to drive closing block around second limit post synchronous opening and closing, and four closing blocks can be accurate head-to-tail closely adhere, and the inner edge surface tooth pattern combination forms the required internal thread, solves the technical problem that needs to dismantle and reinstallation adaptive switching disc when replacing workpiece, and the replacement is frequent and complicated, and cannot be applicable to a variety of model lathe.

Description

Technical Field

[0001] This utility model relates to the field of machine tool processing technology, specifically to an adapter plate for turning machine tools. Background Technology

[0002] Turning is one of the most basic cutting methods in the field of mechanical manufacturing, and it is widely used in the production of rotating workpieces such as shafts, discs, and sleeves. In traditional lathe machining, the hydraulic chuck and center are one of the main ways to hold the workpiece. The jaws hold and fix one end of the workpiece, while the center presses against the other end, driving the workpiece to rotate and receive the cutting tool.

[0003] However, when the outer diameter of the workpiece exceeds the maximum clamping specification of the lathe hydraulic chuck, the existing chuck cannot clamp it directly, and a larger lathe needs to be replaced, which significantly increases production costs. To solve this problem, some companies use transition adapters to extend the clamping range of the chuck.

[0004] However, existing adapters still have obvious drawbacks: traditional adapters are usually designed for a single workpiece model. When changing workpieces, the entire adapter needs to be disassembled and reinstalled, which is frequent and cumbersome. In addition, adapters are usually designed for a single machine tool spindle, so the adapter cannot be used once the machine tool is changed. Summary of the Invention

[0005] Based on this, the purpose of this utility model is to provide an adapter plate for turning machine tools to solve the technical problem that when changing workpieces, the entire adapter plate needs to be disassembled and reinstalled, which is frequent and cumbersome, and cannot be applied to multiple types of machine tools.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adapter plate for a turning machine tool, including a top cover, a base fixedly connected to the bottom of the top cover, multiple sets of first limiting posts and second limiting posts fixedly connected to the base, a closing block rotatably connected to the outer wall of the multiple sets of second limiting posts, a linkage rod rotatably connected to the other end of each set of closing blocks, and the other end of each set of linkage rods rotatably connected to the inner wall of a connecting hole, multiple sets of connecting holes being opened on a linkage ring, the outer wall of the linkage ring being rotatably connected to the inner wall of the base, and an adjusting block fixedly connected to the outer wall of the linkage ring penetrating the outer wall of the base, and a fixing block also fixedly connected to the outer wall of the base.

[0007] By adopting the above technical solution, the adjusting block is moved so that the linkage ring can move between the top cover and the base. Multiple sets of connecting holes are opened on the linkage ring. When the linkage ring rotates, one end of the four sets of linkage rods is rotatably connected to the connecting hole. As the linkage ring moves, the linkage rods move accordingly, and the other end of the linkage rods is rotatably connected to the closing block. The closing block is rotatably connected to the base through the second limiting post. When the linkage rod moves, the closing block is passively rotated around the second limiting post.

[0008] Furthermore, one end face of each of the multiple sets of closed blocks is provided with a thread, and one end face of each set of closed blocks can be slidably connected to the other end face of another set of closed blocks. When the multiple sets of closed blocks are slidably connected end to end, the multiple thread segments are combined to form a complete thread.

[0009] By adopting the above technical solution, the adjusting block is pushed upward, the linkage ring rotates clockwise, driving the four sets of linkage rods to move, and each of the four sets of linkage rods drives a set of closing blocks to rotate clockwise. One end face of the closing block connected by the linkage rod is in contact with the other end face of another set of closing blocks. The four sets of closing blocks are in close contact, and the inner edge surfaces of the four sets of closing blocks are provided with teeth, which combine with each other to form a thread.

[0010] Furthermore, the linkage ring has multiple sets of sliding limiting grooves inside, and the inner wall of the sliding limiting groove is slidably connected to the outer wall of the first limiting post. The sliding limiting groove serves to limit the rotation range of the linkage ring inside the mounting plate.

[0011] By adopting the above technical solution, the first limiting post and the sliding limiting groove, the second limiting post and the adjusting block are tightly installed with the fixing block by bolts, which ensures the reliability of the internal thread formed by the combination of the closing blocks.

[0012] Furthermore, the inner circle of the top cover is provided with threads, and the inner circle of the top cover is also provided with a notch. The fastening ring is slidably connected to the top cover through the notch. The top cover is provided with multiple sets of mounting holes for installing external clamping devices.

[0013] By adopting the above technical solution, the positioning heads at both ends of the fastening ring are aligned with the limiting grooves opened on the top cover, and the fastening ring is placed on the top cover. The outer wall of the fastening ring is smooth and its size is slightly smaller than the inner circle of the top cover, so it will not interfere with the threads on the inner circle of the top cover. Moreover, the thread diameter on the inner wall of the fastening ring is equal to the thread diameter formed by the closing block. When the adapter plate is installed, the fastening ring is locked. The fastening ring strengthens the installation firmness of the adapter plate when using the internal closing block. After installation, the clamping mechanism can be installed on the adapter plate through the mounting hole as needed.

[0014] In summary, the present invention has the following main advantages:

[0015] By adjusting the lever to control the rotation of the linkage ring, four sets of linkage rods are driven to open and close the closing blocks synchronously around the second limit post. The four sets of closing blocks can fit tightly end to end, and their inner edge teeth combine to form the required internal thread. The second bolt locks the fixed block, and the first and second limit posts work together to ensure the rigidity and stability of the combined thread of the four sets of closing blocks. At the same time, the matching fastening ring is screwed into the combined thread and locked into the limit groove, providing double locking reinforcement. This greatly enhances the vibration resistance and firmness of the adapter plate when installing small spindles. When the adjusting lever is turned down, the closing blocks quickly separate, causing the combined thread to fail. At this time, a larger diameter spindle can be directly installed using the inner circular thread on the base and top cover. This design integrates two installation methods, adjustable combined thread and fixed thread, and solves the problem that a single adapter plate cannot adapt to multiple spindle sizes. It improves clamping efficiency and applicability, and reduces usage costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the appearance of the present utility model;

[0017] Figure 2 This is an exploded view of the structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0019] Figure 4 This is a schematic diagram of the opening and closing of the internal structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the rear structure of this utility model.

[0021] In the diagram: 1. Top cover; 101. Mounting hole; 2. Base; 201. Fixing block; 202. First limiting post; 203. Second limiting post; 301. Linkage ring; 302. Linkage rod; 303. Closing block; 304. Sliding limiting groove; 305. Adjusting block; 306. Connecting hole; 307. Fastening ring; 401. First bolt; 402. First nut; 501. Second bolt; 502. Second nut. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0023] The embodiments of this utility model will be described below based on its overall structure.

[0024] An adapter for a turning machine tool, such as Figure 1-5As shown, the device includes a top cover 1, a base fixedly connected to the bottom of the top cover 1, and multiple sets of first limiting posts 202 and second limiting posts 203 fixedly connected to the base 2. The outer walls of the multiple sets of second limiting posts 203 are rotatably connected to closing blocks 303. The other end of each set of closing blocks 303 is rotatably connected to a linkage rod 302. The other end of each set of linkage rods 302 is rotatably connected to the inner wall of a connecting hole 306. Multiple sets of connecting holes are opened on a linkage ring 301. The outer wall of the linkage ring 301 is rotatably connected to the inner wall of the base 2, and an adjusting block 305 is fixedly connected to the outer wall of the linkage ring 301, penetrating the outer wall of the base 2. A fixing block 201 is also fixedly connected to the outer wall of the base 2.

[0025] The adjustable block 305 allows the linkage ring 301 to move between the top cover 1 and the base 2. The linkage ring 301 has multiple sets of connecting holes 306. When the linkage ring 301 rotates, one end of each of the four sets of linkage rods 302 is rotatably connected to the connecting hole 306. As the linkage ring 301 moves, the linkage rods 302 move accordingly. The other end of the linkage rods 302 is rotatably connected to the closing block 303. The closing block 303 is rotatably connected to the base 2 through the second limiting post 203. When the linkage rod moves, the closing block 303 is passively rotated around the second limiting post 203.

[0026] Please see Figure 2 , Figure 3 and Figure 4 Multiple sets of sliding limit grooves 304 are provided inside the linkage ring 301. The inner wall of the sliding limit groove 304 is slidably connected to the outer wall of the first limit post 202. The sliding limit groove 304 plays the role of limiting the rotation range of the linkage ring 301 inside the mounting plate.

[0027] The first limiting post 202 and the sliding limiting groove 304, the second limiting post 203 and the adjusting block 305 are tightly installed with the fixing block 201 by bolts, which ensures the reliability of the internal thread formed by the combination of the closing block 303.

[0028] Please see Figure 1 and Figure 2 The inner circle of the top cover 1 is provided with threads, and the inner circle of the top cover is also provided with a notch. The fastening ring 307 is slidably connected to the top cover 1 through the notch. The top cover 1 is provided with multiple sets of mounting holes 101, which are used to install external clamping devices.

[0029] The positioning heads at both ends of the fastening ring 307 are aligned with the limiting grooves opened on the top cover 1. The fastening ring 307 is placed on the top cover 1. The outer wall of the fastening ring 307 is smooth and its size is slightly smaller than the inner circle of the top cover 1, so it will not interfere with the threads on the inner circle of the top cover 1. The thread diameter on the inner wall of the fastening ring 307 is equal to the thread diameter formed by the closing block 303. When the adapter plate is installed, the fastening ring 307 is locked. The fastening ring 307 strengthens the installation firmness of the adapter plate when using the internal closing block 303. After installation, the clamping mechanism can be installed on the adapter plate through the mounting hole 101 for processing as needed.

[0030] Please see Figure 3 and Figure 4 One end face of multiple sets of closed blocks 303 is provided with a thread, and one end face of each set of closed blocks 303 can be slidably connected with the other end face of another set of closed blocks 303. When multiple sets of closed blocks 303 are slidably connected to each other end by end, multiple threads are combined to form a complete thread.

[0031] When the adjusting block 305 is pushed upward, the linkage ring 301 rotates clockwise, driving the four sets of linkage rods 302 to move. Each of the four sets of linkage rods 302 drives a set of closing blocks 303 to rotate clockwise. One end face of the closing block 303 connected to the linkage rod 302 is in contact with the other end face of another set of closing blocks 303. The four sets of closing blocks 303 are in close contact, and the inner surfaces of the four sets of closing blocks 303 are provided with teeth, which combine with each other to form a thread.

[0032] The working principle of this utility model is as follows: by moving the adjusting block 305, the linkage ring 301 can move between the top cover 1 and the base 2. The linkage ring 301 has multiple sets of connecting holes 306. When the linkage ring 301 rotates, one end of the four sets of linkage rods 302 is rotatably connected to the connecting hole 306. As the linkage ring 301 moves, the linkage rods 302 move accordingly. The other end of the linkage rods 302 is rotatably connected to the closing block 303. The closing block 303 is rotatably connected to the base 2 through the second limiting post 203. When the linkage rod moves, the closing block 303 is passively rotated around the second limiting post 203.

[0033] When installing the adapter plate, adjust the adapter plate according to the size of the machine tool spindle. Move the adjusting block 305 upwards, and the linkage ring 301 will rotate clockwise, driving the four sets of linkage rods 302 to move. Each of the four sets of linkage rods 302 drives a set of closing blocks 303 to rotate clockwise. One end face of the closing block 303 connected to the linkage rod 302 is in contact with the other end face of another set of closing blocks 303. The four sets of closing blocks 303 are in close contact, and the inner surfaces of the four sets of closing blocks 303 are provided with teeth, which combine to form a thread. At this time, the hole on the adjusting block 305 coincides with the hole on one end of the fixed block 201. Pass the second bolt 501 through the two holes and lock it with the second nut 502. The first limit post 202, the second limit post 203 and the adjusting block 305 are tightly installed with the fixed block 201 through bolts to ensure the reliability of the internal thread formed by the combination of closing blocks 303.

[0034] Align the positioning heads at both ends of the fastening ring 307 with the limiting grooves opened on the top cover 1, and place the fastening ring 307 on the top cover 1. The outer wall of the fastening ring 307 is smooth and its size is slightly smaller than the inner circle of the top cover 1, so it will not interfere with the threads on the inner circle of the top cover 1. The thread diameter on the inner wall of the fastening ring 307 is equal to the thread diameter formed by the closing block 303. When the adapter plate is installed, the fastening ring 307 is locked. The fastening ring 307 strengthens the installation firmness of the adapter plate when using the internal closing block 303 for installation. After installation, the clamping mechanism can be installed on the adapter plate through the mounting hole 101 for processing as needed.

[0035] When the diameter of the machine tool spindle exceeds the thread formed by the closing block 303 and matches the thread diameter on the inner circle of the base 2 and the top cover 1, the adjusting block 305 is pushed down, and the linkage ring 301 rotates counterclockwise, causing the four sets of closing blocks 303 to rotate around the second limit post 203, so that the thread formed by the four sets of closing blocks 303 is invalidated. At this time, the hole on the adjusting block 305 coincides with the hole on the other end of the fixing block 201, and is locked by the second bolt 501 and the second nut 502. The fastening ring 307 is removed, and the adapter plate is directly installed. The threads on the inner wall of the base 2 and the bottom cover match the threads on the spindle to complete the installation of the adapter plate.

[0036] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the present invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, but such modifications, substitutions, and variations are protected by patent law as long as they fall within the scope of the claims of the present invention.

Claims

1. A transition plate for a turning machine tool, comprising a top cover (1), characterized in that: The top cover (1) is fixedly connected to a base. Multiple sets of first limiting posts (202) and second limiting posts (203) are fixedly connected to the base (2). The outer walls of the multiple sets of second limiting posts (203) are rotatably connected to closing blocks (303). The other end of each set of closing blocks (303) is rotatably connected to a linkage rod (302). The other end of each set of linkage rods (302) is rotatably connected to the inner wall of the connecting hole (306). The multiple sets of connecting holes are opened on the linkage ring (301). The outer wall of the linkage ring (301) is rotatably connected to the inner wall of the base (2). An adjusting block (305) is fixedly connected to the outer wall of the linkage ring (301) and passes through the outer wall of the base (2). The outer wall of the base (2) is also fixedly connected to a fixing block (201).

2. The adapter plate for a turning machine tool according to claim 1, characterized in that: One end face of each of the multiple sets of closed blocks (303) is provided with a thread. One end face of each set of closed blocks (303) can be slidably connected to the other end face of another set of closed blocks (303). When the multiple sets of closed blocks (303) are slidably connected end to end, the multiple threads are combined to form a complete thread.

3. The adapter plate for a turning machine tool according to claim 1, characterized in that: Multiple sets of sliding limit grooves (304) are provided inside the linkage ring (301). The inner wall of the sliding limit groove (304) is slidably connected to the outer wall of the first limit post (202). The sliding limit groove (304) plays the role of limiting the rotation range of the linkage ring (301) inside the mounting plate.

4. The adapter plate for a turning machine tool according to claim 1, characterized in that: The inner circle of the top cover (1) is provided with threads, and the inner circle of the top cover is also provided with a notch. The fastening ring (307) is slidably connected to the top cover (1) through the notch. The top cover (1) is provided with multiple sets of mounting holes (101), which are used to install external clamping devices.

5. The adapter plate for a turning machine tool according to claim 1, characterized in that: The base (2) has a threaded inner circle, and the diameter is equal to that of the threaded inner circle on the top cover (1).

6. The adapter plate for a turning machine tool according to claim 1, characterized in that: The top cover is fixedly connected to the base (2) by multiple sets of first bolts (401) and first nuts (402), and the fixing block (201) and adjusting block (305) are fixedly connected by second bolts (501) through second nuts (502).

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