Numerical control milling machine for improving machining precision of parts
By using a multi-directional positioning CNC milling machine structure, and utilizing components such as electric telescopic rods, motor-driven lead screws, and rotary tables, the problem of low machining accuracy caused by the small movement range of CNC machine tools is solved, achieving high-precision and low-cost machining results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU QIKAIHANG ELECTROMECHANICAL TECH CO LTD
- Filing Date
- 2025-08-28
- Publication Date
- 2026-08-04
AI Technical Summary
Existing CNC machine tools have a small range of motion, resulting in low machining accuracy. They also require auxiliary fixtures, which increases manufacturing costs and makes them difficult to popularize.
The CNC milling machine adopts a multi-directional positioning structure, including components such as a movable adjustment plate, ball bearings, electric telescopic rods, motor-driven lead screws, and turntables. Multi-directional adjustment is achieved through the cooperation of transmission gears and tooth grooves, increasing the machining range and accuracy.
It improves the machining accuracy of parts, reduces friction, expands the machining range, and lowers manufacturing costs.
Smart Images
Figure CN224587629U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of CNC milling machine technology, and in particular to a CNC milling machine for improving the machining accuracy of parts. Background Technology
[0002] CNC machine tools, short for numerical control machine tools, are automated machine tools equipped with a program control system. This control system logically processes programs with control codes or other symbolic instructions, decodes them, represents them with coded numbers, and inputs them into the CNC device via an information carrier. After processing, the CNC device sends various control signals to control the machine tool's movements, automatically machining parts according to the shape and dimensions required by the drawings. CNC machine tools effectively solve the problems of machining complex, precise, small-batch, and multi-variety parts. They are flexible, high-efficiency automated machine tools, representing the development direction of modern machine tool control technology, and are a typical mechatronics product.
[0003] Existing CNC machine tools have a limited range of movement during use, resulting in low machining accuracy. They require a multi-directional positioning fixture to assist the CNC machine tool in achieving a wide range of machining and positioning of the workpiece, which increases manufacturing costs and makes it difficult to widely use. Therefore, we propose a CNC milling machine to improve the machining accuracy of parts. Utility Model Content
[0004] The purpose of this invention is to provide a CNC milling machine that improves the machining accuracy of parts, thus solving the existing problems.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A CNC milling machine for improving the machining accuracy of parts includes a CNC milling machine frame. A movable adjustment plate is slidably installed on the inner side of the CNC milling machine frame. A first electric telescopic rod is fixedly installed at the bottom of the movable adjustment plate. A tool fixing flange is fixedly installed at the output end of the first electric telescopic rod. A control connecting cylinder is fixedly installed at the top of the movable adjustment plate. Multiple ball bearings are rotatably installed on the CNC milling machine frame. The movable adjustment plate is in contact with the ball bearings. A first turntable is fixedly installed on the top inner wall of the CNC milling machine frame. A control box is fixedly installed at the bottom of the first turntable.
[0007] As a further improvement to the above solution, a first motor is fixedly installed on one inner wall of the control box, a lead screw is fixedly installed at the output end of the first motor, and a movable slider is threaded on the outer side of the lead screw.
[0008] As a further improvement to the above solution, a second electric telescopic rod is fixedly installed at the bottom of the movable slider, and a fixed box is fixedly installed at the output end of the second electric telescopic rod.
[0009] As a further improvement to the above solution, a second motor is fixedly installed on the top inner wall of the fixed box, a first drive shaft is fixedly installed on the output end of the second motor, a second turntable is fixedly installed on the outer side of the first drive shaft, and two connecting rods are rotatably installed on the outer side of the second turntable.
[0010] As a further improvement to the above solution, two guide sliders are slidably installed on the inner side of the fixed box, a clamping block is fixedly installed on one side of the guide slider, and one end of the connecting rod is rotatably installed on one side of the guide slider.
[0011] As a further improvement to the above solution, a third motor is fixedly installed on the top of the CNC milling machine machining frame, a second drive shaft is fixedly installed on the output end of the third motor, a transmission gear is fixedly installed on the outer side of the second drive shaft, and a toothed groove is opened on the outer side of the first turntable, and the transmission gear and the toothed groove mesh with each other.
[0012] As a further improvement to the above solution, a circular through hole is provided on the top inner wall of the CNC milling machine machining frame, and the outer diameter of the movable adjustment plate is larger than the inner diameter of the circular through hole.
[0013] As a further improvement to the above solution, the inner side of the fixed box is provided with multiple limiting grooves, and the guide slider is slidably installed on the inner side of the limiting grooves.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] (1) The present invention provides a CNC milling machine for improving the machining accuracy of parts. The transmission gear can drive the first turntable to rotate through the tooth groove. After the first turntable rotates, the direction of the control box and the lead screw can be adjusted, and the moving direction of the moving slider can be adjusted. The pressing block abuts against the control connecting cylinder again, so that the moving adjustment plate can follow and move. The ball can make the moving adjustment plate have less friction during the movement. A circular through hole is provided on the top inner wall of the CNC milling machine machining frame, so that the moving adjustment plate can drive the first electric telescopic rod and the tool fixing flange to move to any position inside the circular through hole, thereby making the adjustment range of the device larger and increasing the machining accuracy of the parts.
[0016] (2) The present invention provides a CNC milling machine for improving the machining accuracy of parts. The required cutting tools are installed below the tool fixing flange by bolts. When machining is required, the second electric telescopic rod can be controlled to drive the fixing box to descend and move the fixing box into the control connecting cylinder. The second motor can be started and controlled to drive the first drive shaft and the second turntable to rotate. After the second turntable rotates, it can drive the guide slider and the abutment block to move through the connecting rod. The abutment block can fit with the control connecting cylinder. At this time, the first motor can be controlled to drive the lead screw to rotate. The lead screw can drive the moving slider, the fixed control connecting cylinder and the moving adjustment plate to move through the threaded engagement. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a three-dimensional structural diagram of a CNC milling machine for improving the machining accuracy of parts, as proposed in this utility model.
[0019] Figure 2 This is a partial three-dimensional structural diagram of a CNC milling machine for improving the machining accuracy of parts, as proposed in this utility model.
[0020] Figure 3 This is a partial three-dimensional structural diagram of a CNC milling machine for improving the machining accuracy of parts, as proposed in this utility model.
[0021] Figure 4 This is a partial three-dimensional structural diagram of a CNC milling machine for improving the machining accuracy of parts, as proposed in this utility model.
[0022] In the diagram: 1. CNC milling machine machining frame; 2. Movable adjustment plate; 3. First electric telescopic rod; 4. Tool fixing flange; 5. Control connecting cylinder; 6. Ball bearing; 7. First turntable; 8. Control box; 9. First motor; 10. Lead screw; 11. Moving slider; 12. Second electric telescopic rod; 13. Fixed box; 14. Second motor; 15. First drive shaft; 16. Second turntable; 17. Guide slider; 18. Clamping block; 19. Connecting rod; 20. Third motor; 21. Second drive shaft; 22. Transmission gear; 23. Gear groove. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0024] refer to Figure 1-4 A CNC milling machine for improving the machining accuracy of parts includes a CNC milling machine frame 1, a movable adjustment plate 2 slidably mounted on the inner side of the CNC milling machine frame 1, a first electric telescopic rod 3 fixedly mounted on the bottom of the movable adjustment plate 2, a tool fixing flange 4 fixedly mounted on the output end of the first electric telescopic rod 3, a control connecting cylinder 5 fixedly mounted on the top of the movable adjustment plate 2, multiple ball bearings 6 rotatably mounted on the CNC milling machine frame 1, the movable adjustment plate 2 and the ball bearings 6 being in contact, a first turntable 7 fixedly mounted on the top inner wall of the CNC milling machine frame 1, and a control box 8 fixedly mounted on the bottom of the first turntable 7; the required tools are installed by bolts. Installed below the tool fixing flange 4, when processing is required, the second electric telescopic rod 12 can be controlled to drive the fixing box 13 to descend and move the fixing box 13 into the control connecting cylinder 5; in this embodiment, a first motor 9 is fixedly installed on one side inner wall of the control box 8, and a lead screw 10 is fixedly installed at the output end of the first motor 9. A movable slider 11 is threaded on the outer side of the lead screw 10; the first motor 9 can be controlled to drive the lead screw 10 to rotate, and the lead screw 10 can drive the movable slider 11, the fixed control connecting cylinder 5, and the movable adjusting plate 2 to move through the threaded engagement. When it is necessary to change the direction of movement, the abutment block 18 can be released from contact.
[0025] In this embodiment, a second electric telescopic rod 12 is fixedly installed at the bottom of the movable slider 11, and a fixed box 13 is fixedly installed at the output end of the second electric telescopic rod 12. The third motor 20 is controlled to start and drive the second drive shaft 21 and the transmission gear 22 to rotate. The transmission gear 22 can drive the first turntable 7 to rotate through the tooth groove 23. After the first turntable 7 rotates, the direction of the control box 8 and the lead screw 10 can be adjusted, and the moving direction of the movable slider 11 can be adjusted. In this embodiment, a second motor 14 is fixedly installed on the top inner wall of the fixed box 13, a first drive shaft 15 is fixedly installed at the output end of the second motor 14, a second turntable 16 is fixedly installed on the outside of the first drive shaft 15, and two connecting rods 19 are rotatably installed on the outside of the second turntable 16.
[0026] In this embodiment, two guide sliders 17 are slidably installed on the inner side of the fixed box 13. A clamping block 18 is fixedly installed on one side of the guide slider 17. One end of the connecting rod 19 is rotatably installed on one side of the guide slider 17. The second motor 14 is started and controlled to drive the first drive shaft 15 and the second turntable 16 to rotate. After the second turntable 16 rotates, it can drive the guide slider 17 and the clamping block 18 to move through the connecting rod 19. The clamping block 18 can fit against the control connecting cylinder 5. In this embodiment, a third motor 20 is fixedly installed on the top of the CNC milling machine processing frame 1. A second drive shaft 21 is fixedly installed on the output end of the third motor 20. A transmission gear 22 is fixedly installed on the outer side of the second drive shaft 21. A toothed groove 23 is opened around the outer side of the first turntable 7. The transmission gear 22 and the toothed groove 23 mesh with each other.
[0027] In this embodiment, a circular through hole is provided on the top inner wall of the CNC milling machine processing frame 1, and the outer diameter of the movable adjustment plate 2 is larger than the inner diameter of the circular through hole. The pressing block 18 abuts against the control connecting cylinder 5, allowing the movable adjustment plate 2 to move accordingly. The ball bearing 6 reduces the friction of the movable adjustment plate 2 during movement. The circular through hole on the top inner wall of the CNC milling machine processing frame 1 allows the movable adjustment plate 2 to drive the first electric telescopic rod 3 and the tool fixing flange 4 to move to any position inside the circular through hole, thereby allowing the device to adjust within a large range and increasing the machining accuracy of the parts. In this embodiment, multiple limiting grooves are provided on the inner side of the fixed box 13, and the guide slider 17 is slidably installed on the inner side of the limiting grooves.
[0028] The implementation principle of a CNC milling machine for improving part machining accuracy in this application embodiment is as follows: The required tool is installed below the tool fixing flange 4 by bolts. When machining is required, the second electric telescopic rod 12 can be controlled to drive the fixing box 13 to descend and move the fixing box 13 into the control connecting cylinder 5. The second motor 14 can be started and controlled to drive the first drive shaft 15 and the second turntable 16 to rotate. After the second turntable 16 rotates, it can drive the guide slider 17 and the clamping block 18 to move through the connecting rod 19. The clamping block 18 can fit against the control connecting cylinder 5. At this time, the first motor 9 can be controlled to drive the lead screw 10 to rotate. The lead screw 10 can drive the moving slider 11, the fixed control connecting cylinder 5, and the moving adjusting plate 2 to move through the threaded engagement. When the direction of movement needs to be changed, the abutment block 18 can be released from contact, and the third motor 20 can be started to drive the second drive shaft 21 and the transmission gear 22 to rotate. The transmission gear 22 can drive the first turntable 7 to rotate through the tooth groove 23. After the first turntable 7 rotates, the direction of the control box 8 and the lead screw 10 can be adjusted, and the direction of movement of the moving slider 11 can be adjusted. The abutment block 18 can be made to abut against the control connecting cylinder 5 again, and the moving adjustment plate 2 can be moved accordingly. The ball bearing 6 can reduce the friction of the moving adjustment plate 2 during movement. A circular through hole is provided on the top inner wall of the CNC milling machine processing frame 1, which allows the moving adjustment plate 2 to drive the first electric telescopic rod 3 and the tool fixing flange 4 to move to any position inside the circular through hole, thereby making the adjustment range of the device larger and increasing the machining accuracy of the parts.
[0029] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0030] The above provides a detailed description of a CNC milling machine for improving the machining accuracy of parts according to this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core idea of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A CNC milling machine for improving the machining accuracy of parts, characterized in that, include: A CNC milling machine machining frame (1) is provided. A movable adjustment plate (2) is slidably installed on the inner side of the CNC milling machine machining frame (1). A first electric telescopic rod (3) is fixedly installed at the bottom of the movable adjustment plate (2). A tool fixing flange (4) is fixedly installed at the output end of the first electric telescopic rod (3). A control connecting cylinder (5) is fixedly installed at the top of the movable adjustment plate (2). Multiple ball bearings (6) are rotatably installed on the CNC milling machine machining frame (1). The movable adjustment plate (2) is in contact with the ball bearings (6). A first turntable (7) is fixedly installed on the top inner wall of the CNC milling machine machining frame (1). A control box (8) is fixedly installed at the bottom of the first turntable (7).
2. The CNC milling machine for improving the machining accuracy of parts according to claim 1, characterized in that, A first motor (9) is fixedly installed on one side of the inner wall of the control box (8). A lead screw (10) is fixedly installed at the output end of the first motor (9). A movable slider (11) is threaded on the outer side of the lead screw (10).
3. A CNC milling machine for improving the machining accuracy of parts according to claim 2, characterized in that, The bottom of the movable slider (11) is fixedly installed with a second electric telescopic rod (12), and the output end of the second electric telescopic rod (12) is fixedly installed with a fixed box (13).
4. A CNC milling machine for improving the machining accuracy of parts according to claim 3, characterized in that, A second motor (14) is fixedly installed on the top inner wall of the fixed box (13). A first drive shaft (15) is fixedly installed at the output end of the second motor (14). A second turntable (16) is fixedly installed on the outer side of the first drive shaft (15). Two connecting rods (19) are rotatably installed on the outer side of the second turntable (16).
5. A CNC milling machine for improving the machining accuracy of parts according to claim 4, characterized in that, Two guide sliders (17) are slidably installed on the inner side of the fixed box (13). A clamping block (18) is fixedly installed on one side of the guide slider (17). One end of the connecting rod (19) is rotatably installed on one side of the guide slider (17).
6. A CNC milling machine for improving the machining accuracy of parts according to claim 1, characterized in that, A third motor (20) is fixedly installed on the top of the CNC milling machine processing frame (1). A second drive shaft (21) is fixedly installed at the output end of the third motor (20). A transmission gear (22) is fixedly installed on the outer side of the second drive shaft (21). A toothed groove (23) is opened around the outer side of the first turntable (7). The transmission gear (22) and the toothed groove (23) mesh with each other.
7. A CNC milling machine for improving the machining accuracy of parts according to claim 1, characterized in that, The top inner wall of the CNC milling machine machining frame (1) is provided with a circular through hole, and the outer diameter of the movable adjustment plate (2) is larger than the inner diameter of the circular through hole.
8. A CNC milling machine for improving the machining accuracy of parts according to claim 5, characterized in that, The inner side of the fixed box (13) is provided with multiple limiting grooves, and the guide slider (17) is slidably installed on the inner side of the limiting grooves.