Hydraulic clamping device for sliding plate of machine tool
By introducing the threaded motion of the screw and the rotating disk into the hydraulic clamping device of the machine tool slide, the problem of workpiece vibration was solved, and stable clamping of plates of different thicknesses was achieved, improving processing accuracy and stability.
Patent Information
- Application Number
- CN202423174772.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Existing machine tool slide hydraulic clamping devices lack effective positioning when clamping workpieces, resulting in workpiece vibration that affects machining accuracy.
A hydraulic clamping device for machine tool slides was designed. By installing a first screw inside the horizontal plate, the first screw is rotated by a rotary disk and moves with the thread of the horizontal plate. The lifting and lowering of the first screw is controlled, which in turn drives the pressure plate to lift and lower, thereby achieving the clamping of plates of different thicknesses.
It effectively prevents the sheet material from moving during processing, thus improving processing stability and precision.
Smart Images

Figure CN223544744U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of hydraulic clamping devices, specifically a hydraulic clamping device for a machine tool slide. Background Technology
[0002] The hydraulic clamping device for machine tool slides is a widely used device in the machine tool processing field, mainly used for fixing and stabilizing machine tool slides. It utilizes hydraulic principles to clamp and release the machine tool slide. Its main function is to quickly, stably, and reliably clamp the slide during machine tool operation, ensuring precise machining and efficient operation. The device mainly consists of a hydraulic cylinder, piston, clamping block, connecting pipes, and control valve. The hydraulic cylinder is the core component, responsible for generating hydraulic power; the piston reciprocates within the hydraulic cylinder, transmitting fluid pressure; and the clamping block directly contacts and clamps the slide. The hydraulic clamping device for machine tool slides is widely used in various CNC machine tools, machining centers, and mechanical manufacturing fields, such as lathes, milling machines, and grinding machines.
[0003] The prior art provides a hydraulic clamping device for a machine tool slide (publication number: CN218575622U). This device includes: a base body; a filtering mechanism, the base body mounted on the filtering mechanism; a water spraying device, the water spraying device mounted on the base body; and a clamping device, the clamping device mounted on the base body. By activating the hydraulic cylinder, the output end of the hydraulic cylinder pushes the clamping plates to move linearly along the motion track, reducing the distance between the two clamping plates until the workpiece is clamped and then stopped. The thin cotton pads on the clamping plates prevent damage to the workpiece due to excessive clamping force. When the workpiece begins to be processed, a water pump is turned on to draw water from the water tank. The water flows through an L-shaped water pipe to the upper end of the pipe and is sprayed out from the nozzle, adsorbing water dust generated during the workpiece processing.
[0004] However, the device still has the following drawbacks:
[0005] When this device is in use, it uses clamping plates to clamp the workpiece on both sides. During processing, the upper end of the workpiece lacks positioning, and the workpiece is prone to vibration, which will affect the processing. Therefore, we need to propose a machine tool slide hydraulic clamping device. Utility Model Content
[0006] The purpose of this utility model is to provide a hydraulic clamping device for a machine tool slide plate. A first screw is installed inside the slide plate. A rotating disk drives the first screw to rotate, and a threaded motion occurs between the first screw and the slide plate. The first screw is controlled to move up and down, and the first screw drives the pressure plate to move up and down. The pressure plate presses the plates of different thicknesses to prevent the plates from moving during processing and affecting the processing, thereby solving the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A hydraulic clamping device for a machine tool slide includes a base, two symmetrically distributed fixing plates are fixedly connected to the side wall of the base, and a hydraulic telescopic rod is fixedly connected to the side wall of each of the two fixing plates. A clamping plate is fixedly connected to the output end of the hydraulic telescopic rod, and a pressing component for pressing and limiting the slide plate is provided on the clamping plate.
[0009] The pressing assembly includes a horizontal plate fixedly installed on the upper end of the clamping plate. The horizontal plate is internally threaded with a first screw. The upper end of the first screw is fixedly connected to a rotating disk, and the lower end of the first screw is rotatably connected to a pressing plate. The pressing plate is slidably connected to the clamping plate.
[0010] Preferably, the base has a groove inside, and a connecting pipe is fixedly connected to the bottom of the groove.
[0011] Preferably, a filter box is fixedly connected to the lower end of the connecting pipe, and a filter plate is fixedly connected inside the filter box.
[0012] Preferably, a water pump is provided on the side wall of the filter box, and a water pipe is fixedly connected to the upper end of the water pump. The water pipe is connected to the base through a mounting plate.
[0013] Preferably, the upper end of the water pipe is provided with a water spraying assembly for spraying water onto plates of different thicknesses. The water spraying assembly includes an outer sleeve slidably connected to the outside of the water pipe, a nozzle fixedly connected to the upper end of the outer sleeve, a lifting plate fixedly connected to the outside of the outer sleeve, and a second screw threadedly connected to the inside of the lifting plate.
[0014] Preferably, a motor is fixedly connected to the lower end of the second screw, and the motor is connected to the base through a mounting plate.
[0015] Preferably, a sealing ring is fixedly connected to the bottom of the outer sleeve, and the sealing ring is slidably connected to the water pipe.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] This utility model features a horizontal plate with a first screw installed inside. A rotating disk drives the first screw to rotate, creating a threaded motion between the first screw and the horizontal plate. This controls the lifting and lowering of the first screw, which in turn drives a pressure plate to lift and lower. The pressure plate presses down on plates of different thicknesses, preventing the plates from moving during processing and affecting the process. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the internal structure of the present invention;
[0020] Figure 3 This is a schematic diagram of the structure of the pressing component of this utility model;
[0021] Figure 4 This is a schematic diagram of the structure of the water spray assembly of this utility model.
[0022] In the diagram: 1. Base; 2. Fixing plate; 3. Hydraulic telescopic rod; 4. Clamping plate; 5. Pressing assembly; 51. Horizontal plate; 52. First screw; 53. Rotary disc; 54. Pressure plate; 6. Groove; 7. Connecting pipe; 8. Filter box; 9. Filter plate; 10. Water pump; 11. Water pipe; 12. Water spray assembly; 121. Outer sleeve; 122. Spray nozzle; 123. Lifting plate; 124. Second screw; 125. Motor. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1-4 This utility model provides a technical solution:
[0025] A hydraulic clamping device for a machine tool slide includes a base 1. Two symmetrically distributed fixing plates 2 are fixedly connected to the side wall of the base 1. A hydraulic telescopic rod 3 is fixedly connected to the side wall of each of the two fixing plates 2. A clamping plate 4 is fixedly connected to the output end of the hydraulic telescopic rod 3. A pressing component 5 for pressing and limiting the slide is provided on the clamping plate 4.
[0026] The pressing assembly 5 includes a horizontal plate 51 fixedly installed on the upper end of the clamping plate 4. A first screw 52 is threadedly connected to the inside of the horizontal plate 51. A rotating disk 53 is fixedly connected to the upper end of the first screw 52. A pressing plate 54 is rotatably connected to the lower end of the first screw 52. The pressing plate 54 is slidably connected to the clamping plate 4.
[0027] The base 1 has a groove 6 inside, and a connecting pipe 7 is fixedly connected to the bottom of the groove 6. A filter box 8 is fixedly connected to the lower end of the connecting pipe 7. A filter plate 9 is fixedly connected inside the filter box 8. A water pump 10 is installed on the side wall of the filter box 8. A water pipe 11 is fixedly connected to the upper end of the water pump 10. The water pipe 11 is connected to the base 1 through a mounting plate.
[0028] For example, during processing, water is sprayed onto the processing position to prevent dust generated during processing from overflowing. The water flows into the interior of the groove 6 and into the interior of the filter box 8 through the connecting pipe 7. The filter plate 9 filters the water, and the filtered water enters the lower end of the filter box 8 for easy water recycling. The water pump 10 extracts the filtered water and transports it through the water pipe 11.
[0029] The upper end of the water pipe 11 is provided with a water spraying assembly 12 for spraying water onto plates of different thicknesses. The water spraying assembly 12 includes an outer sleeve 121 slidably connected to the outside of the water pipe 11. A sealing ring is fixedly connected to the bottom of the outer sleeve 121 and is slidably connected to the water pipe 11. A nozzle 122 is fixedly connected to the upper end of the outer sleeve 121. A lifting plate 123 is fixedly connected to the outside of the outer sleeve 121. A second screw 124 is threadedly connected to the inside of the lifting plate 123. A motor 125 is fixedly connected to the lower end of the second screw 124. The motor 125 is connected to the base 1 through a mounting plate.
[0030] For example, water flows through the water pipe 11 into the interior of the outer sleeve 121. The sealing ring at the bottom of the outer sleeve 121 prevents water from overflowing. The water flows into the interior of the nozzle 122. The outlet of the nozzle 122 has a certain angle to better spray water onto the processing position. The motor 125 drives the second screw 124 to rotate. The second screw 124 and the lifting plate 123 have a threaded movement, which controls the lifting plate 123 to rise and fall. The lifting plate 123 drives the outer sleeve 121 to rise and fall, and the outer sleeve 121 drives the nozzle 122 to rise and fall, so that the nozzle 122 can spray water onto different positions.
[0031] Working principle: When this utility model is in use, the hydraulic telescopic rod 3 drives the clamping plate 4 to move and clamp both ends of the plate. The rotating disk 53 drives the first screw 52 to rotate, and the first screw 52 and the horizontal plate 51 have a threaded movement. The first screw 52 is controlled to rise and fall, and the first screw 52 drives the pressure plate 54 to rise and fall. The pressure plate 54 presses the plates of different thicknesses to prevent the plates from moving during the processing and affecting the processing.
[0032] During processing, water is sprayed onto the processing location to prevent dust generated during processing from overflowing. The water flows into the interior of the groove 6 and into the interior of the filter box 8 through the connecting pipe 7. The filter plate 9 filters the water, and the filtered water enters the lower end of the filter box 8 for easy water recycling. The water pump 10 extracts the filtered water and transports it through the water pipe 11. The water flows through the water pipe 11 into the interior of the outer sleeve 121. The sealing ring at the bottom of the outer sleeve 121 prevents water from overflowing from the outer sleeve 121. The water flows into the interior of the nozzle 122. The outlet of the nozzle 122 has a certain angle to better spray water onto the processing location. The motor 125 drives the second screw 124 to rotate. The second screw 124 and the lifting plate 123 have a threaded movement, controlling the lifting plate 123 to rise and fall. The lifting plate 123 drives the outer sleeve 121 to rise and fall, and the outer sleeve 121 drives the nozzle 122 to rise and fall, so that the nozzle 122 can spray water onto different locations.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A hydraulic clamping device for a machine tool slide, comprising a base (1), characterized in that: Two symmetrically distributed fixing plates (2) are fixedly connected to the side wall of the base (1). A hydraulic telescopic rod (3) is fixedly connected to the side wall of each of the two fixing plates (2). A clamping plate (4) is fixedly connected to the output end of the hydraulic telescopic rod (3). A pressing component (5) for pressing down and limiting the plate is provided on the clamping plate (4). The pressing assembly (5) includes a horizontal plate (51) fixedly installed on the upper end of the clamping plate (4). The horizontal plate (51) is internally threaded with a first screw (52). The upper end of the first screw (52) is fixedly connected with a rotating disk (53). The lower end of the first screw (52) is rotatably connected with a pressing plate (54). The pressing plate (54) is slidably connected to the clamping plate (4).
2. The hydraulic clamping device for a machine tool slide plate according to claim 1, characterized in that: The base (1) has a groove (6) inside, and a connecting pipe (7) is fixedly connected to the bottom of the groove (6).
3. The hydraulic clamping device for a machine tool slide plate according to claim 2, characterized in that: The lower end of the connecting pipe (7) is fixedly connected to a filter box (8), and a filter plate (9) is fixedly connected inside the filter box (8).
4. The hydraulic clamping device for a machine tool slide plate according to claim 3, characterized in that: A water pump (10) is provided on the side wall of the filter box (8), and a water pipe (11) is fixedly connected to the upper end of the water pump (10). The water pipe (11) is connected to the base (1) through a mounting plate.
5. A hydraulic clamping device for a machine tool slide plate according to claim 4, characterized in that: The upper end of the water pipe (11) is provided with a water spraying assembly (12) for spraying water onto plates of different thicknesses. The water spraying assembly (12) includes an outer sleeve (121) slidably connected to the outside of the water pipe (11). A nozzle (122) is fixedly connected to the upper end of the outer sleeve (121). A lifting plate (123) is fixedly connected to the outside of the outer sleeve (121). A second screw (124) is threadedly connected to the inside of the lifting plate (123).
6. A hydraulic clamping device for a machine tool slide plate according to claim 5, characterized in that: The lower end of the second screw (124) is fixedly connected to a motor (125), and the motor (125) is connected to the base (1) through a mounting plate.
7. A hydraulic clamping device for a machine tool slide plate according to claim 5, characterized in that: A sealing ring is fixedly connected to the bottom of the outer tube (121), and the sealing ring is slidably connected to the water pipe (11).
Citation Information
Patent Citations
Hydraulic clamping device of machine tool
CN218575622U