A CNC worm gear milling machine
By combining a multi-directional control milling device and a worm gear positioning device, the problem of inflexible coordination between the milling cutter and the worm gear is solved, enabling flexible rotation and precise positioning of the CNC worm milling machine, thus improving the flexibility and accuracy of machining.
Patent Information
- Application Number
- CN202521592466.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-29
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-07-29
AI Technical Summary
Existing CNC worm milling machines suffer from insufficient flexibility in the movement coordination between the milling cutter and the worm during machining, and the rotation speed and angle adjustments are not precise enough, limiting their application range.
By employing a multi-directional control milling device and a worm gear positioning device, combined with a rotary table and an electric screw mechanism, the flexible rotation and precise positioning of the milling cutter and worm gear are achieved. The movement of each component is controlled by a CNC system to achieve precise machining in three-dimensional space.
It improves the flexibility and adaptability of machining, enabling a variety of complex machining processes and ensuring the accuracy and flexibility of milling and grinding processes.
Smart Images

Figure CN224939218U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of CNC machine tools, and in particular to a CNC worm milling machine. Background Technology
[0002] In the machinery manufacturing industry, the worm gear is a key transmission component, and its machining quality directly affects the overall performance of the equipment. Currently, some CNC worm milling machines on the market suffer from insufficient flexibility in the movement coordination between the milling cutter and the worm gear during machining. The milling cutter's movement is limited, and the adjustment of the worm gear's rotation speed and angle is not precise enough. Furthermore, these milling machines are typically only capable of milling operations, limiting their application range. Utility Model Content
[0003] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This utility model provides a CNC worm gear milling machine, including a bed, the bed including an upright seat and a horizontal seat, the horizontal seat being disposed on the ground, and the upright seat being disposed on one side of the horizontal seat; a multi-directional control milling device is disposed on the top surface of the horizontal seat; a worm gear positioning device is vertically movable on the side of the upright seat facing the horizontal seat.
[0004] Furthermore, the multi-directional control milling device includes a lower slide table disposed on the top surface of the seat and an upper slide table disposed on the lower slide table. The upper slide table and the lower slide table slide along a horizontal plane, and the two sliding directions are perpendicular to each other.
[0005] Furthermore, the lower slide and the upper slide are driven by two sets of electric screw mechanisms.
[0006] Furthermore, a rotating platform is provided on the top surface of the upper slide, and a rotary motor is provided at the bottom of the rotating platform, which can drive the rotating platform to rotate.
[0007] Furthermore, a milling power head is provided on the top surface of the rotary table, and a milling head or a grinding head is installed at the output end of the milling power head.
[0008] Furthermore, the worm gear positioning device includes two sets of electric screw mechanisms vertically arranged on the side of the stand. A mounting tube is installed on both sets of electric screw mechanisms. A positioning power head and a three-jaw chuck are installed at one end of the mounting tube, and a tailstock center is installed at the other end of the mounting tube.
[0009] The beneficial effects of this utility model are as follows: In this CNC worm milling machine, the rotary table on the top surface of the upper slide, driven by a rotary motor, can rotate the milling power head, thereby controlling the cutting angle of the milling cutter. Simultaneously, the positioning power head of the worm positioning device can drive the three-jaw chuck to rotate, which in turn rotates the worm mounted on the chuck. This allows both the milling cutter and the worm to rotate flexibly. During machining, the relative motion between the two can be adjusted according to different machining requirements, enabling various complex machining operations and improving the flexibility and adaptability of the machining process.
[0010] The lower and upper slides of the multi-directional control milling device slide in two vertical directions on the horizontal plane, respectively, driving the milling power head to be precisely positioned and moved on the horizontal plane. Combined with the rotation function of the rotary table, the milling power head can achieve precise motion trajectory control in three-dimensional space, ensuring that the milling cutter performs milling operations on the worm gear according to the preset machining path. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a top view of the structure of this utility model.
[0012] Explanation of reference numerals in the attached drawings: 1. Bed; 101. Vertical seat; 102. Horizontal seat; 2. Multi-directional control milling device; 3. Worm gear positioning device; 4. Electric screw mechanism; 201. Lower slide; 202. Upper slide; 203. Rotary table; 204. Rotary motor; 205. Milling power head; 301. Mounting tube; 302. Positioning power head; 303. Three-jaw chuck; 304. Tailstock center. Detailed Implementation
[0013] The present invention will be further described in detail below with reference to the accompanying drawings.
[0014] This utility model provides a CNC worm gear milling machine, including a bed 1, the bed 1 including a vertical seat 101 and a horizontal seat 102, the horizontal seat 102 being disposed on the ground, and the vertical seat 101 being disposed on one side of the horizontal seat 102; a multi-directional control milling device 2 is disposed on the top surface of the horizontal seat 102; a worm gear positioning device 3 is vertically movable on the side of the vertical seat 101 facing the horizontal seat 102.
[0015] The multi-directional control milling device 2 includes a lower slide 201 disposed on the top surface of the base 102 and an upper slide 202 disposed on the lower slide 201. The upper slide 202 and the lower slide 201 slide along a horizontal plane, and the two sliding directions are perpendicular to each other. The lower slide 201 and the upper slide 202 are driven by two sets of electric screw mechanisms 4 respectively. Under the drive of the electric screw mechanisms 4, the lower slide 201 and the upper slide 202 can slide along two mutually perpendicular directions on the horizontal plane, so that the milling power head 205 can be positioned and moved in the horizontal plane, providing a flexible motion trajectory for subsequent milling and grinding processes, and can adapt to the machining needs of worm gears of different shapes and sizes.
[0016] A rotary table 203 is provided on the top surface of the upper slide table 202, and a rotary motor 204 is provided at the bottom of the rotary table 203, which can drive the rotary table 203 to rotate. A milling power head 205 is provided on the top surface of the rotary table 203, and a milling head or grinding head is installed at the output end of the milling power head 205, providing milling power for it. The rotary table 203 is used to adjust the cutting angle and direction of the milling head or grinding head, so that it can perform multi-angle milling or grinding operations on the worm gear according to different processing requirements, realizing the processing of complex shapes. The worm gear positioning device 3 includes two sets of electric screw mechanisms 4 vertically arranged on the side of the stand 101. A mounting rectangular tube 301 is installed on both sets of electric screw mechanisms 4. The two sets of electric screw mechanisms 4 drive the mounting rectangular tube 301 to move vertically, thereby driving the positioning power head 302, the three-jaw chuck 303 and the tailstock center 304 to move together. One end of the mounting tube 301 is equipped with a positioning power head 302 and a three-jaw chuck 303, and the other end of the mounting tube 301 is equipped with a tailstock center 304. The three-jaw chuck 303 is used to clamp one end of the worm gear, and the tailstock center 304 can clamp the worm gear from the other end. The positioning power head 302 can drive the three-jaw chuck 303 to rotate, thereby driving the worm gear to rotate, realizing precise positioning and rotational drive of the worm gear, and providing workpiece support and rotational power for milling and grinding.
[0017] Working Principle: When milling or grinding a worm gear is required, one end of the worm gear is first clamped by a three-jaw chuck 303, and the other end is held in place by a tailstock center 304, achieving initial positioning of the worm gear. The positioning power head 302 drives the three-jaw chuck 303 to rotate, causing the worm gear to rotate at a set speed and direction. Simultaneously, the lower slide 201 and upper slide 202 move horizontally under the drive of their respective electric screw mechanisms 4, bringing the milling power head 205 to the designated machining starting position. The rotary motor 204 drives the rotary table 203 to rotate, adjusting the cutting angle of the milling head or grinding head on the milling power head 205. The milling power head 205 starts and begins milling or grinding the rotating worm gear according to the preset machining path. During the machining process, the CNC system controls the actions of each electric screw mechanism 4, rotary motor 204, and positioning power head 302 to achieve the relative movement between the milling power head 205 and the worm gear, thereby completing the worm gear milling and grinding process.
[0018] Through the above specific embodiments, those skilled in the art can easily implement this utility model. However, it should be understood that this utility model is not limited to the specific embodiments described above. Based on the disclosed embodiments, those skilled in the art can arbitrarily combine different technical features to achieve different technical solutions.
Claims
1. A CNC worm gear milling machine, comprising a bed (1), characterized in that: The bed (1) includes a standing seat (101) and a sleeping seat (102). The sleeping seat (102) is placed on the ground, and the standing seat (101) is placed on one side of the sleeping seat (102). A multi-directional control milling device (2) is provided on the top surface of the sleeping seat (102). A worm gear positioning device (3) is provided on the side of the standing seat (101) facing the sleeping seat (102) for vertical movement.
2. The CNC worm gear milling machine according to claim 1, characterized in that: The multi-directional control milling device (2) includes a lower slide (201) disposed on the top surface of the base (102) and an upper slide (202) disposed on the lower slide (201). The upper slide (202) and the lower slide (201) slide along the horizontal plane, and the two sliding directions are perpendicular to each other.
3. A CNC worm gear milling machine according to claim 2, characterized in that: The lower slide (201) and upper slide (202) are driven by two sets of electric screw mechanisms (4).
4. A CNC worm gear milling machine according to claim 2 or 3, characterized in that: The top surface of the upper slide (202) is provided with a rotary table (203), and the bottom of the rotary table (203) is provided with a rotary motor (204), which can drive the rotary table (203) to rotate.
5. A CNC worm gear milling machine according to claim 4, characterized in that: The top surface of the rotary table (203) is provided with a milling power head (205), and the output end of the milling power head (205) is equipped with a milling head or a grinding head.
6. A CNC worm gear milling machine according to claim 1, characterized in that: The worm gear positioning device (3) includes two sets of electric screw mechanisms (4) vertically arranged on the side of the stand (101). The two sets of electric screw mechanisms (4) are equipped with mounting tubes (301). One end of the mounting tube (301) is equipped with a positioning power head (302) and a three-jaw chuck (303), and the other end of the mounting tube (301) is equipped with a tailstock tip (304).
