Fixture for machining of numerical control electric spark machine tool
By using a hydraulically driven fixing fixture and a servo motor-controlled lifting assembly, combined with a threaded knob and protective plate design, the problem of inconvenient fixing and cumbersome operation of CNC EDM machine tool fixtures is solved, achieving high-precision, flexible machining and safety protection.
Patent Information
- Application Number
- CN202421009501.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-05-11
AI Technical Summary
Existing CNC EDM machines suffer from inconvenient fixture fixing, cumbersome operation, and rudimentary structure, making them unsuitable for machining complex shapes and high-precision requirements.
The fixture employs a hydraulically driven clamp, a servo motor-controlled lifting assembly, and an adjustable protective mechanism, combined with a threaded knob and protective plate design, to achieve flexible clamping and safe protection.
It improves the flexibility and safety of the fixture, ensures machining accuracy and stability, reduces safety risks to operators, and extends the service life of the equipment.
Smart Images

Figure CN222326924U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of machine tool processing, in particular to a clamp for numerical control electric spark machine tool processing. Background Art
[0002] CNC EDM machine is an EDM equipment controlled by CNC technology, mainly used for precision machining of metal materials. It combines the advantages of EDM and CNC technology, and can meet the processing requirements of high precision and complex shapes. CNC EDM machine is usually composed of CNC system, electrode, workbench, power supply and other parts. By pre-programming the processing path and parameters, the CNC system can accurately control the position and movement trajectory of the electrode in three-dimensional space, thereby achieving precision machining of the workpiece. CNC EDM machine is widely used in mold manufacturing, aerospace, automobile manufacturing, precision parts processing and other fields, which is of great significance for the processing of workpieces requiring high precision and complex shapes. CNC EDM machine is usually used in conjunction with a fixed fixture.
[0003] However, the fixtures of existing CNC EDM machines have the disadvantages of inconvenient processing and fixing, cumbersome operation, and relatively simple structure, which makes the fixtures not well adapted during processing. For this reason, we propose a fixture for CNC EDM machine processing. Utility Model Content
[0004] In order to make up for the above shortcomings, the utility model provides a fixture for CNC electric spark machine processing, aiming to improve the problem that the fixture cannot be well adapted during processing.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a fixture for CNC electric spark machine processing, including a workbench and a displacement plate, the top wall of the workbench is fixedly installed with a base, the left and right sides of the base are fixedly connected with fixed plates, the adjacent sides of the two fixed plates are fixedly connected with hydraulic rods, the output ends of the two hydraulic rods are fixedly connected with mounting plates, the two mounting plates are threaded with two threaded knobs on the opposite sides, the adjacent sides of the multiple threaded knobs are threaded with fixing clamps, the bottom wall of the displacement plate is fixedly installed with processing equipment, the top wall of the workbench is fixedly connected with a vertical plate, the inner wall of the workbench is provided with a lifting assembly, and the top wall of the displacement plate is provided with a protective mechanism.
[0006] As a further description of the above technical solution:
[0007] The protective mechanism includes a connecting plate, the bottom wall of which is fixedly connected to the top wall of the displacement plate, and L-shaped plates are fixedly connected at the four corners of the top wall of the connecting plate. Bolts are threaded through the top walls of multiple L-shaped plates, and the bottom walls of multiple bolts are threadedly connected to protective plates, and observation windows are fixedly installed on the inner walls of the two protective plates.
[0008] As a further description of the above technical solution:
[0009] The lifting assembly includes a servo motor, the bottom end of which is fixedly connected to the right side of the inner bottom wall of the vertical plate, the output end of the servo motor is fixedly connected to a threaded rod, the outer wall of the threaded rod is threadedly connected to the right side of the inner wall of the displacement plate, the left side of the inner bottom wall of the vertical plate is fixedly connected to a sliding column, and the middle part of the sliding column passes through the left side of the inner wall of the displacement plate.
[0010] As a further description of the above technical solution:
[0011] A control switch is fixedly connected to the left side of the vertical plate, and the control switch is electrically connected to the hydraulic rod and the servo motor respectively.
[0012] As a further description of the above technical solution:
[0013] A protective shell is arranged on the left side of the control switch, and the right side of the protective shell is rotatably connected to the left side of the vertical plate through a hinge.
[0014] As a further description of the above technical solution:
[0015] The left and right sides of the bottom wall of the workbench are fixedly connected with base frames, and the bottoms of the two base frames are fixedly installed with corner pads.
[0016] As a further description of the above technical solution:
[0017] A rubber pad is fixedly mounted on adjacent sides of the two fixing clips.
[0018] As a further description of the above technical solution:
[0019] A fixing groove is provided in the middle of the top wall of the base.
[0020] The utility model has the following beneficial effects:
[0021] 1. In the utility model, by starting two hydraulic rods, the fixing clamps can fix the parts, by starting the lifting assembly, the processing equipment can be adjusted to a suitable position, and by turning a plurality of threaded knobs, the fixing clamps can be replaced, so that the machine tool can adjust the specifications of the fixing clamps according to specific usage requirements, thereby increasing the flexibility of the machine tool.
[0022] 2. In the utility model, the protective plate can be displaced together with the displacement plate, so that the processed parts can be protected during processing, which prevents the operator from accidentally touching the working area. The protective plate can be replaced by turning the bolt, thereby increasing the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 A three-dimensional diagram of a fixture for machining a CNC electric spark machine tool proposed by the utility model;
[0024] Figure 2 This is a schematic diagram of the structure of a fixing clamp of a fixture for machining a CNC electric spark machine tool proposed by the utility model;
[0025] Figure 3 The utility model is a schematic diagram of a protective mechanism of a fixture for CNC EDM machine tool processing.
[0026] Legend:
[0027] 1. Workbench; 2. Protection mechanism; 201. Connecting plate; 202. L-shaped plate; 203. Bolt; 204. Protection plate; 205. Observation window; 3. Base; 4. Fixing plate; 5. Hydraulic rod; 6. Mounting plate; 7. Threaded knob; 8. Fixing clip; 9. Rubber pad; 10. Fixing groove; 11. Vertical plate; 12. Servo motor; 13. Threaded rod; 14. Displacement plate; 15. Processing equipment; 16. Sliding column; 17. Control switch; 18. Protective shell; 19. Base frame; 20. Corner pad. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0029] Reference Figure 1 and Figure 2The utility model provides an embodiment: a fixture for CNC EDM machine tool processing, including a workbench 1 and a displacement plate 14, a base 3 is fixedly installed on the top wall of the workbench 1, and the left and right sides of the base 3 are fixedly connected with fixed plates 4, and the adjacent sides of the two fixed plates 4 are fixedly connected with hydraulic rods 5, and the output ends of the two hydraulic rods 5 are fixedly connected with mounting plates 6, and the two mounting plates 6 are threaded with two threaded knobs 7 on the sides away from each other, and the adjacent sides of the plurality of threaded knobs 7 are threaded with fixed clamps 8, and the displacement plate The bottom wall of the workbench 14 is fixedly installed with a processing device 15, the top wall of the workbench 1 is fixedly connected with a vertical plate 11, and the inner wall of the workbench 1 is provided with a lifting assembly, which includes a servo motor 12, the bottom end of the servo motor 12 is fixedly connected to the right side of the inner bottom wall of the vertical plate 11, the output end of the servo motor 12 is fixedly connected with a threaded rod 13, the outer wall of the threaded rod 13 is threadedly connected to the right side of the inner wall of the displacement plate 14, and the left side of the inner bottom wall of the vertical plate 11 is fixedly connected with a sliding column 16, and the middle part of the sliding column 16 passes through the left side of the inner wall of the displacement plate 14;
[0030] Specifically, according to the shape and size of the parts to be processed, select a suitable fixing fixture 8. This step is crucial because the selection of the fixture 8 will directly affect the fixing effect and processing accuracy of the parts. Next, by turning multiple threaded knobs 7, the two fixing fixtures 8 are firmly mounted to one side of the corresponding mounting plate 6, and the two hydraulic rods 5 are started so that the processed parts can be fixed, further increasing the flexibility of the machine tool. In order to meet the processing requirements of different parts, the machine tool also needs to have the ability to adjust the specifications of the fixing fixture. When the servo motor 12 is started, the threaded rod 13 will be driven to rotate, and then under the restriction of the slide column 16, the displacement plate 14 can complete the height adjustment. This height adjustment function allows the processing equipment 15 to adapt to parts of different heights, thereby ensuring accuracy and stability during the processing process. The processing equipment 15 can reach a suitable processing angle to meet the processing requirements of different parts.
[0031] Reference Figure 1 and Figure 3 The top wall of the displacement plate 14 is provided with a protective mechanism 2, which includes a connecting plate 201, the bottom wall of the connecting plate 201 is fixedly connected to the top wall of the displacement plate 14, and the four corners of the top wall of the connecting plate 201 are fixedly connected with L-shaped plates 202, the top walls of the multiple L-shaped plates 202 are threaded with bolts 203, the bottom walls of the multiple bolts 203 are threadedly connected with protective plates 204, and the inner walls of the two protective plates 204 are fixedly installed with observation windows 205;
[0032] Specifically, as the displacement plate 14 descends, the two protective plates 204 also descend together. The function of the two protective plates 204 is to provide all-round protection for the processing area, thereby preventing the operator from accidentally touching the working area and effectively reducing the occurrence of safety accidents. In order to further improve the safety and service life of the device, the device is also designed with replaceable protective plates 204. By turning a plurality of bolts 203, the protective plates 204 can be easily replaced. This design not only makes the replacement of the protective plates 204 simple and quick, but also can extend the service life of the device to a certain extent. In addition, in order to facilitate the operator to observe the working conditions of the processing area in real time, the device is also specially provided with an observation window 205. Through this transparent observation window 205, the operator can intuitively observe the real-time working conditions of the processing area, so as to adjust the processing parameters in time to ensure the smooth progress of the processing process.
[0033] Reference Figure 1 , Figure 2 and Figure 3 A control switch 17 is fixedly connected to the left side of the vertical plate 11, and the control switch 17 is electrically connected to the hydraulic rod 5 and the servo motor 12 respectively; a protective shell 18 is arranged on the left side of the control switch 17, and the right side of the protective shell 18 is rotatably connected to the left side of the vertical plate 11 through a hinge; rubber pads 9 are fixedly installed on adjacent sides of the two fixing clips 8;
[0034] Specifically, the control switch 17 can open and close the device through the control switch 17 electrically connected to the hydraulic rod 5 and the servo motor 12 respectively, and the protection shell 18 can protect the control switch 17 and prevent accidental touch.
[0035] Reference Figure 1 The left and right sides of the bottom wall of the workbench 1 are fixedly connected with a bottom frame 19, and the bottoms of the two bottom frames 19 are fixedly installed with a corner pad 20; a fixing groove 10 is opened in the middle of the top wall of the base 3;
[0036] Specifically, the bottom frame 19 and the corner pad 20 make the device more stable during operation, and the fixing groove 10 makes it easier to place the processed parts.
[0037] Working principle: before starting to fix, select a suitable fixing clamp 8 according to the shape of the part, and by turning a plurality of threaded knobs 7, the two fixing clamps 8 are fixedly installed on one side of the corresponding mounting plate 6, and then by starting the two hydraulic rods 5, the processed parts can be fixed, so that the machine tool can adjust the specifications of the fixing clamp 8 according to specific usage requirements, thereby increasing the flexibility of the machine tool, and by starting the servo motor 12, the threaded rod 13 is driven, and then when the sliding column 16 limits the rotation of the displacement plate 14, the displacement plate 14 completes the height adjustment, so that the processing equipment 15 reaches a suitable processing angle, thereby starting the processing work, and by lifting and lowering the displacement plate 14, after the processing starts, the two protective plates 204 follow the displacement plate 14 to descend together, so that the processing area can be protected, thereby avoiding the operator accidentally touching the working area and causing a safety hazard, and by turning a plurality of bolts 203, the protective plate 204 can be replaced, thereby increasing the service life of the device, and the working condition of the processing area can be intuitively observed through the observation window 205.
[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A fixture for CNC electric spark machine processing, comprising a workbench (1) and a displacement plate (14), characterized in that: A base (3) is fixedly mounted on the top wall of the workbench (1), and a fixing plate (4) is fixedly connected to the left and right sides of the base (3), and hydraulic rods (5) are fixedly connected to the adjacent sides of the two fixing plates (4), and the output ends of the two hydraulic rods (5) are fixedly connected to the mounting plates (6), and two threaded knobs (7) are threadedly penetrated on the opposite sides of the two mounting plates (6), and fixing clamps (8) are threadedly connected to the adjacent sides of the plurality of threaded knobs (7), and processing equipment (15) is fixedly mounted on the bottom wall of the displacement plate (14), and a vertical plate (11) is fixedly connected to the top wall of the workbench (1), and a lifting assembly is arranged on the inner wall of the workbench (1), and a protective mechanism (2) is arranged on the top wall of the displacement plate (14).
2. A fixture for CNC EDM machining according to claim 1, characterized in that: The protective mechanism (2) comprises a connecting plate (201), the bottom wall of the connecting plate (201) being fixedly connected to the top wall of the displacement plate (14), the four corners of the top wall of the connecting plate (201) being fixedly connected to L-shaped plates (202), the top walls of the plurality of L-shaped plates (202) being threaded with bolts (203), the bottom walls of the plurality of bolts (203) being threadedly connected to protective plates (204), and the inner walls of the two protective plates (204) being fixedly mounted with observation windows (205).
3. The fixture for CNC EDM machining according to claim 1, characterized in that: The lifting assembly comprises a servo motor (12), the bottom end of the servo motor (12) is fixedly connected to the right side of the inner bottom wall of the vertical plate (11), the output end of the servo motor (12) is fixedly connected to a threaded rod (13), the outer wall of the threaded rod (13) is threadedly connected to the right side of the inner wall of the displacement plate (14), the left side of the inner bottom wall of the vertical plate (11) is fixedly connected to a sliding column (16), and the middle part of the sliding column (16) passes through the left side of the inner wall of the displacement plate (14).
4. A fixture for CNC EDM machining according to claim 3, characterized in that: A control switch (17) is fixedly connected to the left side of the vertical plate (11), and the control switch (17) is electrically connected to the hydraulic rod (5) and the servo motor (12) respectively.
5. A fixture for CNC EDM machining according to claim 4, characterized in that: A protective shell (18) is provided on the left side of the control switch (17), and the right side of the protective shell (18) is rotatably connected to the left side of the vertical plate (11) via a hinge.
6. The fixture for CNC EDM machining according to claim 1, characterized in that: The left and right sides of the bottom wall of the workbench (1) are fixedly connected to a bottom frame (19), and the bottoms of the two bottom frames (19) are fixedly installed with corner pads (20).
7. The fixture for CNC EDM machining according to claim 1, characterized in that: A rubber pad (9) is fixedly mounted on adjacent sides of the two fixing clips (8).
8. The fixture for CNC EDM machining according to claim 1, characterized in that: A fixing groove (10) is provided in the middle of the top wall of the base (3).