Adjustable multi-tool-position tool rest for numerical control lathe
By designing an adjustable multi-tool turret for CNC lathes, and utilizing components such as rotating rods, inserting rods, and threading rods, the rapid switching of different tool specifications is achieved, solving the problems of frequent disassembly and complex switching of traditional tool turrets, and improving processing efficiency and equipment applicability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional CNC lathe tool turrets can only install a single type of tool, leading to frequent disassembly and replacement, which affects processing efficiency and equipment lifespan; multi-tool turret switching is complex and difficult to achieve fast and accurate switching, which also affects production efficiency.
Design an adjustable multi-tool holder for CNC lathes. Through the combination of components such as rotating rods, inserting rods, threaded rods and locking blocks, it can achieve rapid switching of different tool specifications. Pressing blocks and stops are used to enhance fixation and ensure stability.
It enables rapid switching between different specifications of cutting tools, improves processing efficiency and equipment applicability, extends tool holder life, reduces processing errors and equipment failures, and enhances production safety and product quality.
Smart Images

Figure CN224073376U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machine tool tool holders, and more specifically, to an adjustable multi-position tool holder for CNC lathes. Background Technology
[0002] In the machining of parts on CNC lathes, the use and replacement of cutting tools have a crucial impact on machining efficiency and quality. Traditional CNC lathe tool holders often have many limitations. On the one hand, many tool holders can only install a single type of tool. When the machining task requires different types of tools, the operator has to perform tedious disassembly and replacement operations. This not only consumes a lot of time, but also easily causes wear and tear on the tools and tool holders due to frequent disassembly, reducing the service life of the equipment. On the other hand, even if some tool holders have multi-tool position functions, their tool switching process is relatively complicated, making it difficult to achieve fast and accurate switching. This leads to frequent machine stops for tool changes during machining, which seriously affects production efficiency.
[0003] Therefore, an adjustable multi-position tool post for CNC lathes is proposed to address the above problems. Utility Model Content
[0004] 1. Technical problems to be solved
[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide an adjustable multi-tool post for CNC lathes, which can realize the function of quickly switching between different tools.
[0006] 2. Technical Solution
[0007] To solve the above problems, the present invention adopts the following technical solution.
[0008] An adjustable multi-tool holder for a CNC lathe includes a mounting bracket. A rotating rod is rotatably connected inside the mounting bracket. The rotating rod has a square structure and four circular holes in the middle of its outer wall. The four circular holes are interconnected. An insert rod is slidably connected inside the mounting bracket and is inserted into the circular holes. A threaded rod is rotatably connected inside the insert rod. A limit rod is fixedly connected inside the insert rod. A moving block is threadedly connected to the lower part of the outer wall of the threaded rod. The moving block and the limit rod are slidably connected.
[0009] Furthermore, the outer wall of the movable block is rotatably connected to a connecting rod, and the ends of the four connecting rods away from the movable block are rotatably connected to a locking block, and the locking block and the outer wall of the insert rod are slidably connected.
[0010] Furthermore, all four locking blocks are engaged with the lower part of the mounting bracket, and a knob is fixedly connected to one end of the threaded rod located outside the insertion rod.
[0011] Furthermore, a threaded line is provided on the upper part of the outer wall of the insertion rod, and a pressing block is threadedly connected to the upper part of the outer wall of the insertion rod, the pressing block being located above the mounting bracket.
[0012] Furthermore, a stop block is fixedly connected to the upper part of the outer wall of the insertion rod, and the stop block is located above the extrusion block.
[0013] Furthermore, a turntable is fixedly connected to one end of the rotating rod located outside the mounting frame, and four tool holder bodies of different specifications are equidistantly installed on the outer wall of the turntable.
[0014] Furthermore, a fixing block is fixedly connected to the lower part of the outside of the mounting bracket, and bolts are rotatably installed inside each of the four fixing blocks.
[0015] 3. Beneficial effects
[0016] Compared with existing technologies, the advantages of this utility model are:
[0017] In this design, four tool holder bodies of different specifications are equidistantly installed on the outer wall of the turntable. This innovative design brings great flexibility to the machining operation of CNC lathes. In actual machining, the operator only needs to rotate the turntable, which is fixedly connected to the rotating rod, to quickly switch between different specifications of tools without the need for cumbersome disassembly and replacement of tools. This greatly saves machining time and improves work efficiency. Different specifications of tools can handle a variety of different machining tasks. Whether it is roughing, finishing or special process machining, the appropriate tool can be quickly switched, which significantly improves the machining capability and applicability of CNC lathes and can better meet diverse production needs. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0019] Figure 2 This is a schematic diagram showing the connection relationship between the rotating rod and the mounting bracket in this utility model;
[0020] Figure 3 This is a schematic diagram of the internal structure of the insertion rod in this utility model;
[0021] Figure 4 For the present utility model Figure 3 Schematic diagram of the structure at point A in the middle.
[0022] Explanation of the labels in the diagram:
[0023] 1. Mounting bracket; 11. Fixing block; 12. Bolt; 13. Rotating rod; 14. Turntable; 15. Tool holder body; 16. Round hole; 17. Insert rod; 18. Threaded rod; 19. Limiting rod; 2. Moving block; 21. Connecting rod; 22. Locking block; 23. Pressing block; 24. Stop block; 25. Knob. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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] Example 1
[0028] Please see Figure 1-4An adjustable multi-tool holder for a CNC lathe includes a mounting frame 1. A rotating rod 13 is rotatably connected inside the mounting frame 1. The rotating rod 13 has a square structure, and four circular holes 16 are connected in the middle of its outer wall. An insert rod 17 is slidably connected inside the mounting frame 1, and the insert rod 17 is inserted into the circular holes 16. A threaded rod 18 is rotatably connected inside the insert rod 17. A limit rod 19 is fixedly connected inside the insert rod 17. A moving block 2 is threadedly connected to the lower part of the outer wall of the threaded rod 18. The moving block 2 and the limit rod 19 are slidably connected. A connecting rod 21 is rotatably connected to the outer wall of the moving block 2. Each of the four connecting rods 21, away from the moving block 2, is rotatably connected to a locking block 22. The locking blocks 22 are slidably connected to the outer wall of the insert rod 17, and each of the four locking blocks 22 is engaged with the lower part of the mounting frame 1. A knob 25 is fixedly connected to the end of the threaded rod 18 located outside the insert rod 17.
[0029] In this embodiment, the rotating rod 13 adopts a square structure with four interconnected circular holes 16 in the middle. The insertion rod 17 in the mounting bracket 1 can be accurately inserted into the circular holes 16. At the same time, the threaded rod 18 rotatably connected inside the insertion rod 17, along with the moving block 2, the limiting rod 19, and other components that cooperate with it, form a stable and flexible adjustment system. When the threaded rod 18 is rotated, the moving block 2 will move along the thread on the outer wall of the threaded rod 18 under the restriction of the limiting rod 19. The movement of the moving block 2 will drive the locking block 22 to slide on the outer wall of the insertion rod 17 through the rotatably connected connecting rod 21. This design allows the tool holder to be precisely controlled during the adjustment process. Whether it is a fine adjustment or a large positional change, it can be easily achieved, which greatly improves the convenience and accuracy of tool holder adjustment and meets the precise requirements of CNC lathe for tool holder position in different processing scenarios.
[0030] The tool post has four tool post bodies 15 of different specifications installed at equal intervals on the outer wall of the turntable 14. This innovative design brings great flexibility to the machining operation of CNC lathe. In actual machining, the operator only needs to rotate the turntable 14 which is fixedly connected to the rotating rod 13 to quickly switch between different specifications of tools without the need for cumbersome disassembly and replacement of tools, which greatly saves machining time and improves work efficiency. Different specifications of tools can cope with a variety of different machining tasks. Whether it is roughing, finishing or special process machining, the appropriate tool can be quickly switched, which significantly improves the machining capability and application range of CNC lathe and can better meet diverse production needs.
[0031] The pressing block 23 and the stop block 24 provided on the upper outer wall of the insertion rod 17 further enhance the performance of the tool holder. The pressing block 23 is threadedly connected to the threaded line on the upper outer wall of the insertion rod 17, which can tightly fix and press the insertion rod 17. When the CNC lathe is running at high speed and performing high-intensity machining, the pressing block 23 can effectively prevent the insertion rod 17 from loosening and ensure the stability of the tool holder during operation. The stop block 24 is located above the pressing block 23 and plays a limiting and protective role, preventing the pressing block 23 from moving excessively upward when subjected to external force. This further ensures the reliability of the tool holder structure, extends the service life of the tool holder, reduces machining errors and equipment failures caused by tool holder loosening or structural damage, and improves production safety and product quality.
[0032] The design of the fixing block 11 fixedly connected to the lower exterior of the mounting bracket 1 and the internal rotating bolt 12 fully considers the convenience of tool post installation and disassembly. When installing the tool post, the operator only needs to pass the bolt 12 through the fixing block 11 and then connect and tighten it with the corresponding mounting part of the CNC lathe to easily complete the installation of the tool post. When it is necessary to disassemble the tool post for maintenance or replacement, simply loosen the bolt 12 to remove the tool post from the CNC lathe. The operation is simple and quick, saving time and labor costs for installation and disassembly, improving the maintenance efficiency of the equipment, and providing great convenience for the daily use and maintenance of CNC lathes.
[0033] Example 2
[0034] Please see Figure 1-4 An adjustable multi-tool holder for a CNC lathe has a threaded upper part on the outer wall of a insertion rod 17. A pressing block 23 is threadedly connected to the upper part of the outer wall of the insertion rod 17. The pressing block 23 is located above the mounting frame 1. A stop block 24 is fixedly connected to the upper part of the outer wall of the insertion rod 17. The stop block 24 is located above the pressing block 23. A turntable 14 is fixedly connected to one end of the rotating rod 13 outside the mounting frame 1. Four tool holder bodies 15 of different specifications are equidistantly installed on the outer wall of the turntable 14. A fixing block 11 is fixedly connected to the lower part of the outer side of the mounting frame 1. Bolts 12 rotate inside each of the four fixing blocks 11.
[0035] In this embodiment, the threaded line on the upper part of the outer wall of the insertion rod 17 is threadedly connected to the extrusion block 23. When the extrusion block 23 is tightened, it can apply downward pressure to the insertion rod 17, making it firmly fixed in the mounting bracket 1. At the same time, the stop block 24 located above the extrusion block 23 acts as a limit to prevent the extrusion block 23 from moving excessively upward, ensuring that the extrusion block 23 is always in an effective pressing position. During the high-speed operation and high-intensity processing of the CNC lathe, it effectively prevents the insertion rod 17 from loosening, ensuring the stability and reliability of the tool holder, reducing processing errors caused by tool holder loosening, and improving product processing accuracy and quality.
[0036] The rotating rod 13 is fixedly connected to a turntable 14 at one end outside the mounting bracket 1, and four tool holder bodies 15 of different specifications are equidistantly mounted on its outer wall. During actual machining, the operator only needs to rotate the turntable 14 to quickly switch between different tool specifications, eliminating the need for cumbersome disassembly and reinstallation of tools, significantly saving tool change time and improving machining efficiency. This multi-tool position design enables the CNC lathe to flexibly handle various machining tasks. Whether it's roughing, finishing, or special process machining, it can quickly switch to the appropriate tool, significantly improving the equipment's machining capabilities and applicability, and meeting diverse production needs.
[0037] Working principle: To adjust the position of the tool holder, first pull the insert rod 17 out of the round hole 16 of the rotating rod 13. The insert rod 17 and the round hole 16 were originally in the inserted state to fix the rotating rod 13. Since the rotating rod 13 has a square structure, it can ensure that it has a certain stability and positioning accuracy when rotating.
[0038] The rotating rod 13 can rotate freely inside the mounting frame 1. The operator can rotate the rotating rod 13 by rotating the turntable 14 located outside the mounting frame 1 and fixedly connected to the rotating rod 13. Since four tool holder bodies 15 of different specifications are equidistantly installed on the outer wall of the turntable 14, rotating the turntable 14 can rotate the different tool holder bodies 15 to the appropriate processing position.
[0039] After the rotating rod 13 is rotated to the target position, the insertion rod 17 is reinserted into the corresponding round hole 16. Then, the knob 25 located at one end of the insertion rod 17 is rotated. The knob 25 drives the threaded rod 18 to rotate. Since the moving block 2 is threadedly connected to the lower part of the outer wall of the threaded rod 18, and the moving block 2 is slidably connected to the limiting rod 19, when the threaded rod 18 rotates, the moving block 2 will move linearly along the threaded rod 18 under the restriction of the limiting rod 19.
[0040] During the movement of the moving block 2, the four locking blocks 22 slide on the outer wall of the insertion rod 17 by rotating the connecting rod 21 until all four locking blocks 22 are engaged with the bottom of the mounting bracket 1, thereby further fixing the position of the rotating rod 13 and the insertion rod 17 and ensuring the stability of the tool holder during the processing.
[0041] The upper part of the outer wall of the insertion rod 17 is provided with a threaded line, and a pressing block 23 is threadedly connected to it. The pressing block 23 is located above the mounting frame 1. The operator rotates the pressing block 23 so that it moves downward along the threaded line on the outer wall of the insertion rod 17, which exerts a pressing effect on the mounting frame 1, further enhancing the fixing effect of the tool holder. The stop block 24 located above the pressing block 23 can prevent the pressing block 23 from moving upward excessively, playing a limiting and protective role, and ensuring the stable structure of the tool holder.
[0042] After the tool post position is adjusted and fixed, the CNC lathe is started. According to the machining requirements, the tool on the tool post body 15 located in the appropriate position is used for machining operations. If the tool needs to be changed, the above steps of adjusting the tool post position are repeated. The turntable 14 is rotated to switch to a tool post body 15 of other specifications. After fixing it again, machining continues.
[0043] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.
Claims
1. An adjustable multi-tool holder for a CNC lathe, comprising a mounting bracket (1), characterized in that: The mounting bracket (1) is rotatably connected to a rotating rod (13). The rotating rod (13) has a square structure. Four round holes (16) are opened in the middle of the outer wall of the rotating rod (13). The four round holes (16) are connected. The mounting bracket (1) is slidably connected to an insert rod (17). The insert rod (17) is inserted into the round hole (16). The insert rod (17) is rotatably connected to a threaded rod (18). The insert rod (17) is fixedly connected to a limiting rod (19). The lower part of the outer wall of the threaded rod (18) is threadedly connected to a moving block (2). The moving block (2) and the limiting rod (19) are slidably connected.
2. The adjustable multi-tool post for a CNC lathe according to claim 1, characterized in that: The outer wall of the movable block (2) is rotatably connected to a connecting rod (21), and the ends of the four connecting rods (21) away from the movable block (2) are rotatably connected to a locking block (22). The locking block (22) and the outer wall of the insert rod (17) are slidably connected.
3. The adjustable multi-tool holder for a CNC lathe according to claim 2, characterized in that: All four locking blocks (22) are engaged with the lower part of the mounting bracket (1), and a knob (25) is fixedly connected to one end of the threaded rod (18) located outside the insertion rod (17).
4. The adjustable multi-tool holder for a CNC lathe according to claim 3, characterized in that: The upper part of the outer wall of the insertion rod (17) is provided with a threaded line, and the upper part of the outer wall of the insertion rod (17) is threadedly connected with a compression block (23), which is located above the mounting bracket (1).
5. An adjustable multi-tool holder for a CNC lathe according to claim 4, characterized in that: A stop (24) is fixedly connected to the upper part of the outer wall of the insertion rod (17), and the stop (24) is located above the compression block (23).
6. The adjustable multi-tool holder for a CNC lathe according to claim 1, characterized in that: The rotating rod (13) is fixedly connected to a turntable (14) at one end outside the mounting frame (1), and four different sizes of tool holder bodies (15) are installed at equal intervals on the outer wall of the turntable (14).
7. An adjustable multi-tool post for a CNC lathe according to claim 6, characterized in that: A fixing block (11) is fixedly connected to the lower part of the outside of the mounting bracket (1), and bolts (12) are rotatably installed inside the four fixing blocks (11).