Rocker arm type electric spark machine tool

Abstract

The utility model relates to an electric spark machining technology, and provides a rocker arm type electric spark machining tool which aims at solving the problems that an existing electric spark machining tool cannot meet the machining requirements of small holes, large number, large hole depth and the like, machining power consumption is large, production cost is high and the like and comprises a machine tool base, a machine tool stand column fixed to the machine tool base and a machining platform. A machine tool rocker arm is fixed to the middle of the machine tool stand column, a transverse movement mechanism and a longitudinal movement mechanism are arranged on the machine tool rocker arm, and the transverse movement mechanism comprises a transverse shaft movement lead screw, a transverse shaft movement grating ruler and a grating ruler reading head. The longitudinal movement mechanism comprises a longitudinal movement mounting plate, an electrode driving mechanism, an electrode clamping machine head and a longitudinal movement lead screw, the transverse shaft movement lead screw drives the longitudinal movement mounting plate to move transversely, and the longitudinal movement lead screw drives the electrode driving mechanism to move longitudinally; the electrode clamping machine head is driven by the transverse movement mechanism and the longitudinal movement mechanism to reach the machining position, and machining of a plurality of small-gap and deep-aperture dies is completed.

Description

Technical Field

[0001] The utility model relates to an electric spark machining technology, in particular to a rocker-arm type electric spark machining machine tool. Background Art

[0002] EDM machine tools are special processing machines that use the principle of EDM to process conductive materials. They are mainly used to process various high-hardness materials and complex-shaped molds, parts, holes, cavities, etc., and are the dominant processing method in the mold construction manufacturing industry.

[0003] Electrospark machining is a special machining method that utilizes the electro-erosion effect generated by pulse discharge between two stages immersed in a working fluid to remove conductive materials. At present, when electrospark machining machines are machining threading holes, that is, small-pore mold holes, the machined mold holes need to meet machining requirements such as small pores, large numbers, and deep pore depths. However, existing electrospark machining machines cannot simultaneously achieve machining requirements such as small pores, large numbers, and deep pore depths. In addition, the molds they machine have low hardness, long machine machining time, high power consumption, high production costs, and large floor space. Therefore, it is necessary to seek a new type of electrospark machining machine that can meet the above machining requirements, reduce production costs, and improve production efficiency. Utility Model Content

[0004] The utility model proposes a rocker-arm electrospark machining machine tool to solve the problems that the existing electrospark machining machine tools cannot meet the machining requirements of small pores, large number of pores, deep pore depth, etc., and the machining mold hardness is low, the machine tool machining time is long, the power consumption is large, the production cost is high, and the floor space is large.

[0005] A rocker-type electro-spark machining machine tool, comprising an electrical control system, a machine tool base, a machine tool column fixed on the machine tool base and a machining platform, wherein a machine tool rocker arm is fixed in the middle of the machine tool column, and the special feature thereof is that a lateral motion mechanism and a longitudinal motion mechanism are arranged on the machine tool rocker arm;

[0006] The transverse motion mechanism includes a transverse motion lead screw, a transverse motion grating ruler and a first slide rail arranged in parallel on the rocker arm of the machine tool, a grating ruler reading head is arranged on the transverse motion grating ruler, the longitudinal motion mechanism is connected to the first slide rail, and the longitudinal motion mechanism is connected to the transverse motion lead screw through a first nut, the transverse motion lead screw drives the longitudinal motion mechanism to move transversely along the first slide rail, and the grating ruler reading head is used to display the position information of the longitudinal motion mechanism in real time;

[0007] The longitudinal motion mechanism includes a longitudinal motion mounting plate connected to the first slide rail, the first nut and the grating scale reading head are both connected to the longitudinal motion mounting plate, a second slide rail and an electrode driving mechanism connected to the second slide rail are longitudinally arranged on the longitudinal motion mounting plate, and an electrode clamping head is arranged at one end of the electrode driving mechanism close to the processing platform; a longitudinal motion turbine pair and a longitudinal motion lead screw connected to the longitudinal motion turbine pair are arranged on one side of the longitudinal motion mounting plate, the electrode driving mechanism is connected to the longitudinal motion lead screw through the second nut, and the longitudinal motion lead screw drives the electrode driving mechanism to move longitudinally along the second slide rail.

[0008] Furthermore, an electrode head longitudinal adjustment screw is also provided in the electrode driving mechanism, one end of which is connected to the electrode clamping machine head and is used to drive the electrode clamping machine head to align with the mold processing hole.

[0009] Furthermore, a grating ruler display is arranged on the machine tool column; the grating ruler display is connected to the grating ruler reading head on the horizontal axis moving grating ruler, and is used to display the movement position of the grating ruler reading head.

[0010] Furthermore, a machine tool cooling device is fixed on the machine tool base, and a high-pressure water pump acting on the electrode clamping head is provided on the machine tool cooling device for cooling the electrode clamping head and removing waste chips in the pores to be processed to ensure the smoothness of the processed surface.

[0011] Furthermore, a manual adjustment device for the transverse screw is provided at one end of the transverse axis motion screw away from the machine tool column, for manually controlling the transverse movement of the longitudinal motion mounting plate;

[0012] A longitudinal movement manual adjustment device is arranged at one end of the longitudinal movement turbine pair away from the longitudinal movement mounting plate, and is used for manually controlling the longitudinal movement of the longitudinal movement mounting plate.

[0013] Furthermore, a rocker arm locking mechanism is provided on the machine tool column, and the machine tool rocker arm is fixed on the machine tool column through the rocker arm locking mechanism.

[0014] Furthermore, a rocker arm movement control mechanism is also provided on the machine tool column;

[0015] The rocker arm movement control mechanism includes a drive motor and a rocker arm motion screw connected to the drive end of the drive motor, the machine tool rocker arm is connected to the rocker arm motion screw through a third nut, and the rocker arm motion screw drives the machine tool rocker arm to move longitudinally;

[0016] A rocker arm reducer is also connected between the driving motor and the rocker arm motion lead screw to control the movement speed of the machine tool rocker arm.

[0017] Furthermore, a rocker arm circular swing mechanism is provided between the machine tool column and the machine tool base, for controlling the machine tool rocker arm to perform circular swing motion.

[0018] Furthermore, the processing platform is provided with a workpiece fixing and clamping groove for fixing the workpiece to be processed to prevent it from shaking.

[0019] Furthermore, the machining aperture range of the electrode clamping head is: Φ0.3-10mm;

[0020] Processing depth: 200:1;

[0021] Processing speed: 20-60mm / min.

[0022] Beneficial effects of the utility model:

[0023] [1] The rocker-arm EDM machine tool of the utility model has a compact structure, occupies a small space, has a high degree of integration, can accurately process multiple small holes, and the processing process is flexible and adjustable, which greatly shortens the processing time of the workpiece, improves production efficiency, and has high processing accuracy.

[0024] [2] In the utility model, by setting a horizontal axis moving grating ruler and a grating ruler reading head, the position data of the workpiece to be processed can be accurately obtained, and the position of the hole to be processed can be accurately aligned, which greatly improves the processing accuracy and processing efficiency of the machine tool.

[0025] [3] In the utility model, the transverse motion screw and the longitudinal motion screw cooperate with each other to drive the electrode clamping machine head to perform multi-directional position adjustment, so that the electrode clamping machine head can be more accurately positioned at the position of the hole to be processed, thereby ensuring the processing accuracy. The coordinated movement of the two can quickly and accurately drive the electrode clamping machine head to the processing position, greatly shortening the processing time and improving the processing efficiency.

[0026] [4] In the utility model, the electrode head longitudinal adjustment screw is arranged in the electrode driving mechanism to fine-tune the electrode clamping machine head, thereby further improving the processing accuracy of the processing hole.

[0027] [5] In the utility model, the electrode clamping head in the electrode driving mechanism is cooled by the machine tool cooling device, thereby ensuring the normal operation of the electrode clamping head and avoiding damage to the machine tool caused by high temperature. At the same time, the hole to be processed can be cooled in time, so that it is in a good processing environment, and the processing waste in the processing hole can be taken away in time, thereby ensuring the smoothness of the processed parts and reducing processing errors.

[0028] [6] In the utility model, by providing a manual adjustment device for the transverse screw and a manual adjustment device for the longitudinal movement, the movement speed of the transverse movement and the longitudinal movement of the rocker arm of the machine tool can be manually controlled, thereby ensuring the safe and reliable operation of the machine tool and reducing the production cost.

[0029] [7] In the utility model, a rocker arm locking mechanism is arranged on the machine tool column, which can further ensure the stability of the machine tool rocker arm. When processing a hole diameter below 1 mm, the stability during the processing is particularly critical due to the relatively small hole diameter. The rocker arm locking mechanism in the utility model can ensure the stability of the machine tool rocker arm, further ensuring the accuracy of the small hole diameter processing size and the smoothness of the hole diameter.

[0030] [8] The rocker-type EDM machine tool of the utility model can realize the processing of large-size molds through the machine tool rocker arm, the lateral motion mechanism and the longitudinal motion mechanism, with high processing speed and low production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the rocker-type EDM machine tool of the utility model;

[0032] Figure markings: 1-machine tool rocker arm, 2-transverse axis motion screw, 3-transverse axis moving grating scale, 4-grating scale reading head, 5-longitudinal motion manual adjustment device, 6-longitudinal motion turbine pair, 7-longitudinal motion screw, 8-electrode head longitudinal adjustment screw, 9-electrode clamping head, 10-longitudinal motion mounting plate, 11-processing platform, 12-rocker arm motion screw, 13-rocker arm reducer, 14-drive motor, 15-rocker arm locking mechanism, 16-machine tool column, 17-rocker arm circular deflection mechanism, 18-machine tool cooling device, 19-machine tool base, 20-electrode driving mechanism, 21-workpiece fixing clamping groove, 22-transverse screw manual adjustment device, 23-grating scale display, 24-first slide rail, 25-second slide rail, 26-electrical control system. DETAILED DESCRIPTION

[0033] like Figure 1 As shown, a rocker-type EDM machine tool comprises an electrical control system 26, a machine tool base 19, a machine tool column 16 fixed on the machine tool base 19, and a processing platform 11. A machine tool rocker arm 1 is fixed in the middle of the machine tool column 16, and a lateral motion mechanism and a longitudinal motion mechanism are arranged on the machine tool rocker arm 1; a rocker arm locking mechanism 15 is arranged on the machine tool column 16, and the machine tool rocker arm 1 is fixed on the machine tool column 16 through the rocker arm locking mechanism 15. The electrical control system 26 controls the machine tool rocker arm 1, the lateral motion mechanism and the longitudinal motion mechanism to process the mold to be processed, and a workpiece fixing and clamping groove 21 is arranged on the processing platform 11 for fixing the workpiece to be processed to prevent it from shaking;

[0034] A rocker arm movement control mechanism is arranged on the machine tool column 16, and the rocker arm movement control mechanism includes a drive motor 14, a rocker arm motion screw 12 connected to the drive end of the drive motor 14, and a rocker arm reducer 13. The machine tool rocker arm 1 is connected to the rocker arm motion screw 12 through a third nut, and the rocker arm motion screw 12 drives the machine tool rocker arm 1 to move longitudinally through the rocker arm reducer 13 on the drive motor 14; the rocker arm circular swing mechanism 17 arranged between the machine tool column 16 and the machine tool base 19 controls the machine tool rocker arm 1 to perform circular swing motion.

[0035] The transverse motion mechanism includes a transverse motion lead screw 2, a transverse motion grating ruler 3 and a first slide rail 24 which are arranged on the machine tool rocker arm 1 in parallel with each other, a grating ruler reading head 4 is arranged on the transverse motion grating ruler 3, and a grating ruler display 23 is arranged on the machine tool column 16. The grating ruler display 23 is connected to the grating ruler reading head 4 on the transverse motion grating ruler 3 and is used to display the movement position of the grating ruler reading head 4. A transverse lead screw manual adjustment device 22 is arranged at one end of the transverse motion lead screw 2 away from the machine tool column 16, which is used to manually control the transverse movement of the longitudinal motion mounting plate 10. The transverse motion lead screw 2 drives the longitudinal motion mechanism to move transversely along the first slide rail 24.

[0036] The longitudinal motion mechanism includes a longitudinal motion mounting plate 10 connected to a first slide rail 24, the first nut and the grating ruler reading head 4 are both connected to the longitudinal motion mounting plate 10, a second slide rail 25 and an electrode driving mechanism 20 connected to the second slide rail 25 are longitudinally arranged on the longitudinal motion mounting plate 10, an electrode head longitudinal adjustment screw 8 is also arranged in the electrode driving mechanism 20, and an electrode clamping head 9 is arranged at one end of the electrode head longitudinal adjustment screw 8 close to the processing platform 11, which drives the electrode clamping head 9 to align with the mold processing hole; a machine tool cooling device 18 is also fixed on the machine tool base 19, and a high-pressure water pump acting on the electrode clamping head 9 is arranged on the machine tool cooling device 18, which is used to cool the electrode clamping head 9 and remove waste chips in the hole to be processed to ensure the smoothness of the processed surface;

[0037] A longitudinal motion turbine pair 6 and a longitudinal motion lead screw 7 connected to the longitudinal motion turbine pair 6 are provided on one side of the longitudinal motion mounting plate 10. The electrode driving mechanism 20 is connected to the longitudinal motion lead screw 7 through a second nut. A longitudinal motion manual adjustment device 5 is provided at one end of the longitudinal motion turbine pair 6 away from the longitudinal motion mounting plate 10 for controlling the longitudinal movement of the longitudinal motion mounting plate 10. The longitudinal motion lead screw 7 drives the electrode driving mechanism 20 to move longitudinally along the second slide rail 25.

[0038] The electrode clamping machine head of the utility model can process apertures in the range of Φ0.3-10 mm, a processing depth of 200:1, and a processing speed of 20-60 mm / min.

Claims

1. A rocker-type electro-spark machining machine tool, comprising an electrical control system (26), a machine tool base (19), a machine tool column (16) fixed on the machine tool base (19), and a machining platform (11), wherein a machine tool rocker arm (1) is fixed in the middle of the machine tool column (16), characterized in that: The machine tool rocker arm (1) is provided with a transverse motion mechanism and a longitudinal motion mechanism; The transverse motion mechanism comprises a transverse motion lead screw (2), a transverse motion grating ruler (3) and a first slide rail (24) arranged in parallel on the machine tool rocker arm (1); a grating ruler reading head (4) is arranged on the transverse motion grating ruler (3); the longitudinal motion mechanism is connected to the first slide rail (24), and the longitudinal motion mechanism is connected to the transverse motion lead screw (2) through a first nut; the transverse motion lead screw (2) drives the longitudinal motion mechanism to move transversely along the first slide rail (24); and the grating ruler reading head (4) is used to display position information of the longitudinal motion mechanism in real time; The longitudinal motion mechanism comprises a longitudinal motion mounting plate (10) connected to a first slide rail (24); the first nut and the grating scale reading head (4) are both connected to the longitudinal motion mounting plate (10); a second slide rail (25) and an electrode driving mechanism (20) connected to the second slide rail (25) are longitudinally arranged on the longitudinal motion mounting plate (10); an electrode clamping head (9) is arranged at one end of the electrode driving mechanism (20) close to the processing platform (11); a longitudinal motion turbine pair (6) and a longitudinal motion lead screw (7) connected to the longitudinal motion turbine pair (6) are arranged on one side of the longitudinal motion mounting plate (10); the electrode driving mechanism (20) is connected to the longitudinal motion lead screw (7) via a second nut; and the longitudinal motion lead screw (7) drives the electrode driving mechanism (20) to move longitudinally along the second slide rail (25).

2. The rocker-type EDM machine tool according to claim 1, characterized in that: The electrode driving mechanism (20) is also provided with an electrode head longitudinal adjustment screw (8), one end of which is connected to the electrode clamping machine head (9) and is used to drive the electrode clamping machine head (9) to align with the mold processing hole.

3. The rocker-type EDM machine tool according to claim 2, characterized in that: A grating ruler display (23) is arranged on the machine tool column (16); The grating ruler display (23) is connected to the grating ruler reading head (4) on the horizontal axis moving grating ruler (3) and is used to display the moving position of the grating ruler reading head (4).

4. The rocker-type EDM machine tool according to claim 3, characterized in that: A machine tool cooling device (18) is also fixed on the machine tool base (19), and a high-pressure water pump acting on the electrode clamping head (9) is provided on the machine tool cooling device (18) for cooling the electrode clamping head (9) and removing waste chips in the pores to be processed to ensure a smooth processed surface.

5. The rocker-type EDM machine tool according to claim 4, characterized in that: A transverse screw manual adjustment device (22) is provided at one end of the transverse axis motion screw (2) away from the machine tool column (16) for manually controlling the transverse motion of the longitudinal motion mounting plate (10); A longitudinal movement manual adjustment device (5) is provided at one end of the longitudinal movement turbine pair (6) away from the longitudinal movement mounting plate (10) for manually controlling the longitudinal movement of the longitudinal movement mounting plate (10).

6. The rocker-type EDM machine tool according to claim 5, characterized in that: The machine tool column (16) is provided with a rocker arm locking mechanism (15), and the machine tool rocker arm (1) is fixed to the machine tool column (16) via the rocker arm locking mechanism (15).

7. The rocker-type EDM machine tool according to claim 6, characterized in that: The machine tool column (16) is also provided with a rocker arm movement control mechanism; The rocker arm movement control mechanism comprises a drive motor (14) and a rocker arm motion screw (12) connected to a drive end of the drive motor (14); the machine tool rocker arm (1) is connected to the rocker arm motion screw (12) via a third nut; the rocker arm motion screw (12) drives the machine tool rocker arm (1) to move longitudinally; A rocker arm reducer (13) is also connected between the driving motor (14) and the rocker arm motion lead screw (12) for controlling the motion speed of the machine tool rocker arm (1).

8. The rocker-type EDM machine tool according to claim 7, characterized in that: A rocker arm circular yaw mechanism (17) is also provided between the machine tool column (16) and the machine tool base (19) and is used to control the machine tool rocker arm (1) to perform circular yaw motion.

9. The rocker-type EDM machine tool according to claim 8, characterized in that: The processing platform (11) is provided with a workpiece fixing and clamping groove (21) for fixing the workpiece to be processed to prevent it from shaking.

10. A rocker-type electrospark machining machine according to any one of claims 1 to 9, characterized in that: The processing hole diameter range of the electrode clamping machine head (9) is: Φ0.3-10mm; Processing depth: 200:1; Processing speed: 20-60mm / min.

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