Energy-saving, noise-reducing and consumption-reducing intermittent hydraulic device of numerical control lathe
By using a small gear to drive a large gear and incorporating Pascal's law, the chuck fixing effect of the CNC lathe's hydraulic device is enhanced, solving the problem of poor fixing effect in existing technologies and achieving energy saving and consumption reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU TOWER PLANT
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-12
AI Technical Summary
Existing CNC lathes with intermittent hydraulic devices for energy saving, noise reduction, and consumption reduction fail to effectively utilize the power source of the hydraulic device when fixing workpieces, resulting in poor chuck fixing effect and energy consumption and noise problems.
By using a small gear to drive a large gear, combined with Pascal's law, the motor uses a smaller force to move the slider and small piston in the hydraulic cavity, increasing the pulling force of the large piston and thus improving the clamping effect on the workpiece.
This technology enables the effective fixing of workpieces with relatively small motor force, achieving energy saving and consumption reduction, and improving the fixing effect of the chuck.
Smart Images

Figure CN224223345U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of CNC lathe technology, and in particular to an intermittent hydraulic device for energy saving, noise reduction and consumption reduction in CNC lathes. Background Technology
[0002] Existing intermittent hydraulic devices for energy saving, noise reduction, and consumption reduction in CNC lathes all involve pressing a limit block against a cut-off switch when the workpiece is fixed. This cut-off switch controls the closing of the electrically controlled valve, cutting off the oil supply at the inlet pipe and stopping the hydraulic motor, thus reducing energy consumption and noise generation. However, they lack the ability to amplify the force driving the rotating rod to use a smaller force to fix the workpiece with the chuck. For example, a CNC lathe energy saving, noise reduction, and consumption reduction intermittent hydraulic device disclosed in Chinese Patent No. CN20182222769.X, although equipped with a limit groove and spring, allows the chuck block inside the second chuck to slide downwards under gravity after the workpiece is removed, separating the limit block on the chuck block from the cut-off switch. This allows the cut-off switch to reset under the action of the spring, facilitating subsequent cyclic control of stopping the hydraulic motor. However, this device does not utilize the hydraulic system to amplify the power source to enhance the chuck's fixing effect on the workpiece, thus limiting its energy saving and consumption reduction capabilities. Utility Model Content
[0003] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide an energy-saving, noise-reducing and consumption-reducing intermittent hydraulic device for CNC lathes. It uses a motor to drive a large gear through a small gear, so that the motor can use a small force to drive the slider and small piston to move linearly through the large gear and rotating block. The small piston drives the large piston to move in the hydraulic cavity through oil. Pascal's law is used to further increase the pulling force of the large piston, enhance the fixing effect of the jaws on the workpiece, and realize that the jaws can fix the workpiece with a small force using a motor, thereby achieving the effect of energy saving and consumption reduction.
[0004] This utility model also provides an intermittent hydraulic device for energy saving, noise reduction and consumption reduction of CNC lathe, comprising: a base, a fixed groove plate fixedly connected to the upper surface of the base, a motor fixedly connected to the upper surface of the fixed groove plate, a small gear fixedly connected to the output end of the motor, a large gear meshing with the side surface of the small gear, a rotating block fixedly connected to the side surface of the large gear through a connecting rod, a slider movably connected to the side surface of the rotating block, and a small piston fixedly connected to the side surface of the slider;
[0005] A hydraulic chamber is slidably connected to the side surface of the small piston. A large piston is slidably connected to the inner side wall of the hydraulic chamber. A push plate is fixedly connected to the end of the large piston away from the hydraulic chamber. An L-shaped rotating plate is fixedly connected to the upper surface of the push plate. A fixed bracket is rotatably connected to the lower surface of the L-shaped rotating plate. A connecting plate is rotatably connected to the upper surface of the fixed bracket. A chuck is rotatably connected to the lower surface of the L-shaped rotating plate. Through these components, using a small gear to drive a large gear, and in accordance with Pascal's law, the motor can use a smaller force to drive the chuck to fix the workpiece, achieving energy saving and consumption reduction.
[0006] According to the present invention, an intermittent hydraulic device for energy saving, noise reduction, and consumption reduction in a CNC lathe includes a connecting rod whose side surface is rotatably connected to a fixed groove plate, and a rotating block whose lower surface is rotatably connected to the fixed groove plate. The connecting rod drives the rotating block to rotate inside the fixed groove plate.
[0007] According to the present invention, an intermittent hydraulic device for energy saving, noise reduction, and consumption reduction in a CNC lathe includes a fixed groove plate whose lower bottom wall is slidably connected to a slider, and a small piston whose side surface is slidably connected to the fixed groove plate. The slider, under the action of the rotating block, drives the small piston to move in a linear direction.
[0008] According to the present invention, an intermittent hydraulic device for energy saving, noise reduction, and consumption reduction in a CNC lathe includes a base whose upper surface is fixedly connected to a hydraulic chamber, and a fixed bracket whose upper surface is also fixedly connected to a fixed support. The hydraulic chamber and the fixed bracket are then fixed to the base.
[0009] According to the present invention, an intermittent hydraulic device for energy saving, noise reduction, and consumption reduction in a CNC lathe includes an L-shaped rotating plate located between a connecting plate and a push plate, with the end of the connecting plate away from the fixed support fixedly connected to a chuck. The connecting plate and the L-shaped rotating plate are used to drive two chucks to fix the workpiece.
[0010] According to the present invention, an intermittent hydraulic device for energy saving, noise reduction, and consumption reduction in a CNC lathe includes a groove on the side surface of the fixed bracket and a slide plate fixedly connected to the side surface of the push plate. The slide plate can slide within the groove, improving the stability of the push plate after movement.
[0011] According to the present invention, an intermittent hydraulic device for energy saving, noise reduction, and consumption reduction in a CNC lathe includes a push plate whose side surface is slidably connected to a fixed bracket, and a slide plate whose side surface is also slidably connected to the fixed bracket. The slide plate allows the push plate to slide stably along the fixed bracket.
[0012] According to the present invention, an intermittent hydraulic device for energy saving, noise reduction, and consumption reduction in a CNC lathe includes two symmetrically distributed fixed supports, with the hydraulic cavity located between the two fixed supports. Two sets of fixed supports are used to connect two chucks, enabling the chucks to fix the workpiece.
[0013] Beneficial effects:
[0014] Compared with existing technologies, the method of using a motor to drive a large gear through a small gear allows the motor to use less force to drive the slider and small piston in linear motion through the large gear and rotating block. The small piston drives the large piston in the hydraulic chamber through oil. Pascal's law is used to further increase the pulling force of the large piston, enhance the clamping effect on the workpiece, and realize the use of a motor to drive the clamp to fix the workpiece with less force, thus achieving the effect of energy saving and consumption reduction. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0016] Figure 1 This is a structural diagram of the overall structure of the energy-saving, noise-reducing, and consumption-reducing intermittent hydraulic device for CNC lathes of this utility model;
[0017] Figure 2 This is a cross-sectional view of the energy-saving, noise-reducing, and consumption-reducing intermittent hydraulic device for CNC lathes according to this utility model;
[0018] Figure 3 This is a structural diagram of the fixed groove plate of the intermittent hydraulic device for energy saving, noise reduction and consumption reduction of CNC lathe of this utility model;
[0019] Figure 4 This is a structural diagram of the push plate of the intermittent hydraulic device for energy saving, noise reduction, and consumption reduction in CNC lathes according to this utility model.
[0020] Legend:
[0021] 1. Base; 2. Fixed slot plate; 3. Small gear; 4. Large gear; 5. Hydraulic cavity; 6. Fixed bracket; 7. Connecting plate; 8. L-shaped rotating plate; 9. Slide groove; 10. Claw; 11. Rotating block; 12. Motor; 13. Connecting rod; 14. Slider; 15. Small piston; 16. Large piston; 17. Push plate; 18. Slide plate. Detailed Implementation
[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0023] Reference Figure 1-4This utility model embodiment discloses an intermittent hydraulic device for energy saving, noise reduction, and consumption reduction in CNC lathes, comprising: a base 1, a fixed groove plate 2 fixedly connected to the upper surface of the base 1, a motor 12 fixedly connected to the upper surface of the fixed groove plate 2, a small gear 3 fixedly connected to the output end of the motor 12, a large gear 4 meshing with the side surface of the small gear 3, a rotating block 11 fixedly connected to the side surface of the large gear 4 via a connecting rod 13, a rotating block 11 rotatably connected to the side surface of the connecting rod 13, a rotating block 11 rotatably connected to the lower surface of the rotating block 11, a sliding block 14 movably connected to the side surface of the rotating block 11, a sliding connection between the lower bottom wall of the fixed groove plate 2 and the sliding block 14, a small piston 15 fixedly connected to the side surface of the sliding block 14, and a sliding connection between the side surface of the small piston 15 and the fixed groove plate 2.
[0024] Specifically, during use, the motor 12 drives the small gear 3 to rotate, and the small gear 3 drives the large gear 4 to rotate. The large gear 4 then drives the rotating block 11 to rotate through the connecting rod 13. The connecting rod 13 is located at the center of the fixed groove plate 2, so that the rotating block 11 rotates in the fixed groove plate 2 with the center of the fixed groove plate 2 as the axis and drives the slider 14 to make linear motion in the fixed groove plate 2. The slider 14 drives the small piston 15 to slide in the hydraulic cavity 5.
[0025] A hydraulic cavity 5 is slidably connected to the side surface of the small piston 15. The upper surface of the base 1 is fixedly connected to the hydraulic cavity 5. A large piston 16 is slidably connected to the inner side wall of the hydraulic cavity 5. A push plate 17 is fixedly connected to the end of the large piston 16 away from the hydraulic cavity 5. An L-shaped rotating plate 8 is fixedly connected to the upper surface of the push plate 17. The L-shaped rotating plate 8 is located between the connecting plate 7 and the push plate 17. A fixed bracket 6 is rotatably connected to the lower surface of the L-shaped rotating plate 8. There are two fixed brackets 6, which are symmetrically distributed. The hydraulic cavity 5 is located between the two fixed brackets 6. The upper surface of the base 1 is fixedly connected to the fixed bracket 6. A connecting plate 7 is rotatably connected to the upper surface of the fixed bracket 6. The end of the connecting plate 7 away from the fixed bracket 6 is fixedly connected to the claw 10. A claw 10 is rotatably connected to the lower surface of the L-shaped rotating plate 8.
[0026] Specifically, the hydraulic chamber 5 is filled with oil, which is located between the small piston 15 and the large piston 16. When the small piston 15 moves, it drives the large piston 16 to move through the oil in the hydraulic chamber 5, and increases the thrust of the large piston 16 by applying Pascal's law. At this time, the large piston 16 drives the push plate 17 to slide along the fixed bracket 6, so that the L-shaped rotating plate 8 drives the chuck 10 to move around the position fixed on the fixed bracket 6. At the same time, the connecting plate 7 also drives the chuck 10 to move inward together with the L-shaped rotating plate 8 around the fixed bracket 6, so that the two chucks 10 can fix the workpiece placed in the middle.
[0027] The side surface of the fixed bracket 6 is provided with a sliding groove 9, and the side surface of the push plate 17 is fixedly connected to the slide plate 18. The side surface of the push plate 17 is slidably connected to the fixed bracket 6, and the side surface of the slide plate 18 is slidably connected to the fixed bracket 6.
[0028] Specifically, the fixed bracket 6 is provided with a sliding groove 9, and the sliding plates 18 on both sides of the push plate 17 are located inside the sliding groove 9 and drive the push plate 17 to slide along the fixed bracket 6. Under the action of the sliding plates 18, the movement of the push plate 17 is more stable, and the two sets of claws 10 can move inward at the same time to fix the workpiece.
[0029] Working principle: During use, motor 12 drives small gear 3 to rotate, and small gear 3 drives large gear 4 to rotate. Large gear 4 then drives rotating block 11 to rotate through connecting rod 13. Connecting rod 13 is located at the center of fixed groove plate 2, so rotating block 11 rotates in fixed groove plate 2 with the center of fixed groove plate 2 as the axis, and drives slider 14 to make linear motion in fixed groove plate 2. Sliding block 14 drives small piston 15 to slide in hydraulic cavity 5, and drives large piston 16 to move through the oil in hydraulic cavity 5. Pascal's law is used to increase the thrust of large piston 16. At this time, large piston 16 will drive push plate 17 to slide along fixed bracket 6, so that L-shaped rotating plate 8 drives chuck 10 to move with the position fixed on fixed bracket 6 as the axis. At the same time, connecting plate 7 also drives chuck 10 to move inward with L-shaped rotating plate 8 with fixed bracket 6 as the axis, so that the two chucks 10 can fix the workpiece placed in the middle.
[0030] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. An intermittent hydraulic device for energy saving, noise reduction, and consumption reduction in CNC lathes, characterized in that, include: A base (1) is fixedly connected to a fixed groove plate (2) on its upper surface. A motor (12) is fixedly connected to the upper surface of the fixed groove plate (2). A small gear (3) is fixedly connected to the output end of the motor (12). A large gear (4) meshes with the side surface of the small gear (3). A rotating block (11) is fixedly connected to the side surface of the large gear (4) via a connecting rod (13). A slider (14) is movably connected to the side surface of the rotating block (11). A small piston (15) is fixedly connected to the side surface of the slider (14). The small piston (15) is slidably connected to a hydraulic cavity (5) on its side surface. A large piston (16) is slidably connected to the inner side wall of the hydraulic cavity (5). A push plate (17) is fixedly connected to the end of the large piston (16) away from the hydraulic cavity (5). An L-shaped rotating plate (8) is fixedly connected to the upper surface of the push plate (17). A fixed bracket (6) is rotatably connected to the lower surface of the L-shaped rotating plate (8). A connecting plate (7) is rotatably connected to the upper surface of the fixed bracket (6). A chuck (10) is rotatably connected to the lower surface of the L-shaped rotating plate (8).
2. The intermittent hydraulic device for energy saving, noise reduction, and consumption reduction in CNC lathes according to claim 1, characterized in that, The side surface of the connecting rod (13) is rotatably connected to the fixed groove plate (2), and the lower surface of the rotating block (11) is rotatably connected to the fixed groove plate (2).
3. The intermittent hydraulic device for energy saving, noise reduction, and consumption reduction in CNC lathes according to claim 1, characterized in that, The bottom wall of the fixed groove plate (2) is slidably connected to the slider (14), and the side surface of the small piston (15) is slidably connected to the fixed groove plate (2).
4. The intermittent hydraulic device for energy saving, noise reduction, and consumption reduction in CNC lathes according to claim 1, characterized in that, The upper surface of the base (1) is fixedly connected to the hydraulic cavity (5), and the upper surface of the base (1) is fixedly connected to the fixed bracket (6).
5. The intermittent hydraulic device for energy saving, noise reduction, and consumption reduction in a CNC lathe according to claim 1, characterized in that, The L-shaped rotating plate (8) is located between the connecting plate (7) and the push plate (17), and the end of the connecting plate (7) away from the fixed bracket (6) is fixedly connected to the claw (10).
6. The intermittent hydraulic device for energy saving, noise reduction, and consumption reduction in a CNC lathe according to claim 1, characterized in that, The side surface of the fixed bracket (6) is provided with a sliding groove (9), and the side surface of the push plate (17) is fixedly connected with a sliding plate (18).
7. The intermittent hydraulic device for energy saving, noise reduction, and consumption reduction in a CNC lathe according to claim 6, characterized in that, The side surface of the push plate (17) is slidably connected to the fixed bracket (6), and the side surface of the slide plate (18) is slidably connected to the fixed bracket (6).
8. The intermittent hydraulic device for energy saving, noise reduction, and consumption reduction in a CNC lathe according to claim 1, characterized in that, There are two fixed supports (6) that are symmetrically distributed, and the hydraulic cavity (5) is located between the two fixed supports (6).