Three-axis high-low head composite power head
Through the three-axis high-low head composite power head structure, single motor drive and needle roller bearings are adopted to solve the problems of high cost and stability noise in the existing technology, and the stability and low noise effect of synchronous turning and milling are achieved.
Patent Information
- Application Number
- CN202421679603.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-07-16
AI Technical Summary
The power heads of existing CNC lathes or milling machines are mostly driven by dual motors, resulting in high costs, and traditional deep groove ball bearings have prominent stability and noise problems when operating at high speed.
The three-axis high and low head composite power head structure is adopted, and three sets of power shafts are driven by a single set of motors, and the deep groove ball bearing is replaced by needle roller bearings, and the transmission device composed of three sets of first helical gears and two sets of second helical gears is used to achieve synchronous driving and stable torque transmission.
It reduces the cost of the power head, improves the high-speed stability and smooth operation of the power shaft, reduces noise, and realizes synchronous turning and milling processing.
Smart Images
Figure CN223251164U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical processing, in particular to a three-axis high-low head composite power head. Background Art
[0002] In the field of mechanical processing, lathes, milling machines, automatic grinders, boring machines and other metal cutting machines are widely used. Existing CNC lathes or CNC milling machines have the function of turning or milling. Lathes are increasingly widely used in the field of mechanical processing. When turning and milling are used in combination, a power head is required.
[0003] Common power heads include dual-axis heads, three-axis heads and other axis head structures. Most power heads are driven by dual motors. More drive motors will increase the cost of the lathe. For this reason, we have proposed a three-axis high and low head composite power head. Utility Model Content
[0004] In view of the deficiencies in the prior art, the present invention provides a three-axis high-low head composite power head, which solves the problems raised in the above-mentioned background technology.
[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a three-axis high-low head composite power head, including a machine base and a side cover, the rear end of the machine base is rotatably connected to three groups of power shafts through three groups of needle bearings, the front end of the machine base is rotatably connected to two groups of rotating shafts, the three groups of power shafts and the two groups of rotating shafts are commonly connected to a transmission device, the outer side of the side cover is installed with a motor, and the output end of the motor is connected to a group of rotating shafts.
[0006] As a further technical solution of the present invention, the three groups of power shafts are vertically distributed at the rear end of the machine base at equal intervals, and the lengths of the three groups of power shafts increase successively from top to bottom.
[0007] As a further technical solution of the present invention, the transmission device is located between the machine base and the side cover, and the transmission device consists of three groups of first bevel gears sleeved on one end of three groups of power shafts and second bevel gears sleeved on the outside of two groups of rotating shafts.
[0008] As a further technical solution of the present invention, there is a gap between two adjacent groups of the first helical gears, and there is a gap between two groups of the second helical gears. Each group of the second helical gears is meshed with the two adjacent groups of the first helical gears.
[0009] As a further technical solution of the present invention, power heads are installed at the free ends of the three groups of power shafts and located outside the machine base. Beneficial effects
[0010] The utility model provides a three-axis high-low head composite power head. Compared with the existing technology, it has the following advantages:
[0011] 1. The three-axis high-low head compound power head uses a transmission device composed of three sets of first bevel gears and second bevel gears to enable the motor to synchronously drive two sets of rotating shafts and three sets of power shafts to rotate, thereby synchronously driving the three sets of power heads to perform turning and milling on the product. This structure uses a single motor drive to reduce costs.
[0012] 2. The three-axis high-low head composite power head has three sets of needle bearings arranged between the three power shafts and the machine base. The needle bearings replace the traditional deep groove ball bearings, so that the three power shafts have high stability at high speed operation. The meshing connection between the three sets of first helical gears and the two sets of second helical gears can smoothly transmit torque and reduce the impact between the tooth surfaces, making the operation of the three power shafts more stable and reliable and reducing noise. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the structure of a three-axis high-low head composite power head;
[0014] Figure 2 This is a schematic diagram of the structure of the three-axis high-low head composite power head without the base and side cover;
[0015] Figure 3 This is a schematic diagram of the structure of three groups of power shafts in a three-axis high-low head composite power head;
[0016] Figure 4 This is the left view of the transmission device in the three-axis high-low head composite power head.
[0017] In the figure: 1. Machine base; 2. Side cover; 3. Needle roller bearing; 4. Power shaft; 5. Rotating shaft; 6. Motor; 7. First bevel gear; 8. Second bevel gear; 9. Power head. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0019] See also Figure 1-4The utility model provides a technical solution for a three-axis high-low head composite power head: a three-axis high-low head composite power head, including a base 1 and a side cover 2. The rear end of the base 1 is rotatably connected to three groups of power shafts 4 through three groups of needle bearings 3. The front end of the base 1 is rotatably connected to two groups of rotating shafts 5. The three groups of power shafts 4 and the two groups of rotating shafts 5 are commonly connected to a transmission device. A motor 6 is installed on the outer side of the side cover 2. The output end of the motor 6 is connected to a group of rotating shafts 5. The three groups of power shafts 4 are vertically distributed at the rear end of the base 1 at equal intervals. The three groups of power shafts 4 increase in length from top to bottom. The transmission device is located between the machine base 1 and the side cover 2. The transmission device consists of three groups of first bevel gears 7 sleeved on one end of the three groups of power shafts 4 and second bevel gears 8 sleeved on the outside of the two groups of rotating shafts 5. There is a gap between the two adjacent groups of first bevel gears 7, and there is a gap between the two groups of second bevel gears 8. Each group of second bevel gears 8 is meshed with the two adjacent groups of first bevel gears 7. The free ends of the three groups of power shafts 4 and the outside of the machine base 1 are all equipped with power heads 9.
[0020] It should be noted that three sets of needle roller bearings 3 are provided between the three sets of power shafts 4 and the machine base 1. By replacing the traditional deep groove ball bearings with the needle roller bearings 3, the three sets of power shafts 4 have high stability in high-speed operation. The meshing connection between the three sets of first helical gears 7 and the two sets of second helical gears 8 can smoothly transmit torque and reduce the impact between the tooth surfaces, making the operation of the three sets of power shafts 4 more stable and reliable, and reducing noise.
[0021] The three groups of power heads 9 can be equipped with turning tools or milling cutters to perform turning and milling processing on the product.
[0022] The working principle of the present utility model is as follows: when in use, firstly, turning tools or milling cutters are installed on three groups of power heads 9, and the motor 6 drives a group of rotating shafts 5 and a group of second bevel gears 8 to rotate, thereby driving two adjacent groups of first bevel gears 7 to rotate, and another group of rotating shafts 5 and another group of second bevel gears 8 drive the remaining group of first bevel gears 7 to rotate, thereby the three groups of first bevel gears 7 drive the three groups of power shafts 4 and the three groups of power heads 9 to rotate.
Claims
1. A three-axis high-low head composite power head, comprising a base (1) and a side cover (2), characterized in that: The rear end of the machine base (1) is rotatably connected to three groups of power shafts (4) via three groups of needle bearings (3); the front end of the machine base (1) is rotatably connected to two groups of rotating shafts (5); the three groups of power shafts (4) and the two groups of rotating shafts (5) are commonly connected to a transmission device; a motor (6) is installed on the outer side surface of the side cover (2); the output end of the motor (6) is connected to a group of rotating shafts (5); The transmission device is located between the machine base (1) and the side cover (2), and is composed of three groups of first bevel gears (7) sleeved on one end of three groups of power shafts (4) and second bevel gears (8) sleeved on the outside of two groups of rotating shafts (5).
2. The three-axis high-low head composite power head according to claim 1, characterized in that: The three groups of power shafts (4) are vertically distributed at the rear end of the machine base (1) at equal intervals, and the lengths of the three groups of power shafts (4) increase sequentially from top to bottom.
3. The three-axis high-low head composite power head according to claim 1, characterized in that: There is a gap between two adjacent groups of the first helical gears (7), there is a gap between two groups of the second helical gears (8), and each group of the second helical gears (8) and the two adjacent groups of the first helical gears (7) are in meshing connection.
4. The three-axis high-low head composite power head according to claim 1, characterized in that: Power heads (9) are installed at the free ends of the three groups of power shafts (4) and outside the machine base (1).