A servo spindle in an EDM machine tool

Abstract

This utility model discloses a servo spindle for an EDM machine tool, relating to the field of machine tool spindle technology. It includes a spindle body with a through groove at its top end, the top of which is connected to a connecting pipe. Mounting pipes are arranged equidistantly on the surface of the spindle body, and connecting rods are installed inside the mounting pipes. In this utility model, cooling air channels are machined on the spindle surface. These channels are arranged in a spiral pattern to increase the cooling area. One end of the air channel is connected to an external cooling fan, and the other end is designed as an air outlet, ensuring that cooling air can flow smoothly across the spindle surface. The cooling air channels can effectively remove the heat generated by the spindle, preventing deformation or damage due to overheating, while improving machining accuracy and stability. Furthermore, four guide wheel sets are arranged equidistantly on the spindle surface. These guide wheel sets provide additional guidance and support for the spindle, reducing spindle wobbling and deviation during movement, and improving the spindle's motion accuracy and stability.

Description

Technical Field

[0001] This utility model relates to the field of machine tool spindle technology, and in particular to a servo spindle in an electrical discharge machine tool. Background Technology

[0002] The servo spindle in an EDM machine is a key component. It controls the movement of the tool electrode and is typically referred to as the Z-axis. Currently, servo spindles in EDM machines are usually driven by a motor-driven lead screw, which in turn moves the spindle and electrode wires via a slider. However, the spindle experiences high temperatures during prolonged operation or high-intensity machining, making it prone to overheating, deformation, or damage. Furthermore, the spindle is susceptible to wobbling and deviation during movement, affecting the machining accuracy of the EDM machine. Utility Model Content

[0003] This invention provides a servo spindle for an EDM machine tool, which solves the problems in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A servo spindle in an electrical discharge machine tool includes a spindle body, the top end of which has a through groove, and the top end of the through groove is connected to a connecting pipe.

[0006] The main shaft body has mounting tubes arranged equidistantly in a ring on its surface, and a connecting rod is installed inside the mounting tube, with a guide wheel installed at one end of the connecting rod.

[0007] As a further description of the above technical solution:

[0008] The through groove is spirally arranged inside the main shaft body, and an outlet is opened at the bottom end of the main shaft body.

[0009] As a further description of the above technical solution:

[0010] The other end of the connecting pipe is connected to a cooling fan.

[0011] As a further description of the above technical solution:

[0012] The surface of the mounting tube is threaded with an annular plate, and the inner wall of the annular plate is provided with a sliding groove. A slider is slidably connected inside the sliding groove, and one end of the slider is connected to an mounting rod that is connected to a connecting rod.

[0013] As a further description of the above technical solution:

[0014] The surface of the mounting tube is provided with a moving groove for the movement of the mounting rod.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0016] In this invention, cooling air ducts are machined on the surface of the spindle. The air ducts are arranged in a spiral shape to increase the cooling area. One end of the air duct is connected to an external cooling fan, and the other end is designed as an air outlet to ensure that the cooling air can flow smoothly over the surface of the spindle. The cooling air ducts can effectively remove the heat generated by the spindle, preventing the spindle from deforming or being damaged due to overheating. At the same time, it improves the machining accuracy and stability. In addition, four guide wheel sets are arranged in a ring at equal intervals on the surface of the spindle. The guide wheel sets can provide additional guidance and support for the spindle, reduce the shaking and deviation of the spindle during the movement, and improve the movement accuracy and stability of the spindle. Attached Figure Description

[0017] Figure 1 A schematic diagram of a servo spindle structure in an electrical discharge machine tool;

[0018] Figure 2 This is a schematic diagram of the internal structure of the annular plate in this utility model.

[0019] Legend:

[0020] 1. Spindle body; 2. Through groove; 3. Connecting pipe; 4. Mounting pipe; 5. Connecting rod; 6. Guide wheel; 7. Annular plate; 8. Slide groove; 9. Slider; 10. Mounting rod; 11. Moving groove. Detailed Implementation

[0021] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] Reference Figure 1 , Figure 2 A servo spindle for an EDM machine tool includes a spindle body 1. A through groove 2 is provided at the top of the spindle body 1, and a connecting pipe 3 is connected to the top of the through groove 2. Mounting pipes 4 are arranged equidistantly on the surface of the spindle body 1, and a connecting rod 5 is provided inside the mounting pipe 4. A guide wheel 6 is installed at one end of the connecting rod 5. Cool air is blown into the through groove 2 through the connecting pipe 3 by a cooling fan to cool the spindle body 1. At the same time, when the spindle body 1 moves up and down, the guide wheel 6 on one side of the connecting rod 5 can move on the surface of the guide rail to provide additional guidance and support for the spindle, reduce the shaking and deviation of the spindle during the movement, and improve the motion accuracy and stability of the spindle.

[0023] Furthermore, the through groove 2 is spirally arranged inside the spindle body 1, and an outlet is provided at the bottom end of the spindle body 1. The spirally arranged through groove 2 can increase the cooling area, so as to accelerate the cooling of the spindle body 1.

[0024] Furthermore, the other end of the connecting pipe 3 is connected to a cooling fan, which facilitates blowing cool air into the interior of the through groove 2 to cool the spindle body 1. The cooling fan can be installed at a fixed location on the machine tool, and the installation position can be selected according to the machine tool layout.

[0025] Furthermore, the surface of the mounting tube 4 is threaded with an annular plate 7, and the inner wall of the annular plate 7 is provided with a groove 8. A slider 9 is slidably connected inside the groove 8, and one end of the slider 9 is connected to a mounting rod 10 connected to the connecting rod 5. A guide rail is also provided on the surface of the machine tool. This guide rail is in contact with the guide wheel 6 so that the guide wheel 6 can move on the surface of the guide rail and can support it. It is convenient to rotate the annular plate 7 so that it can rotate and drive the mounting rod 10 to move. Thus, the mounting rod 10 can drive the connecting rod 5 and the guide wheel 6 to move so that the guide wheel 6 can be moved to the surface of the guide rail.

[0026] Furthermore, the surface of the mounting tube 4 is provided with a moving groove 11 for the mounting rod 10 to move, which facilitates the annular plate 7 to drive the mounting rod 10 to move inside the moving groove 11, thereby enabling it to drive the connecting rod 5 and the like to move.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A servo spindle in an electrical discharge machining (EDM) machine tool, comprising a spindle body (1), characterized in that: The top end of the main shaft body (1) is provided with a through groove (2), and the top end of the through groove (2) is connected to a connecting pipe (3); The main shaft body (1) has mounting tubes (4) arranged equidistantly on its surface in an annular shape, and a connecting rod (5) is provided inside the mounting tube (4), and a guide wheel (6) is installed at one end of the connecting rod (5).

2. The servo spindle in an EDM machine tool according to claim 1, characterized in that: The through groove (2) is spirally arranged inside the main shaft body (1), and the bottom end of the main shaft body (1) has an outlet.

3. The servo spindle in an EDM machine tool according to claim 1, characterized in that: The other end of the connecting pipe (3) is connected to a cooling fan.

4. A servo spindle in an EDM machine tool according to claim 1, characterized in that: The surface of the mounting tube (4) is threaded with an annular plate (7), and the inner wall of the annular plate (7) is provided with a sliding groove (8). The sliding groove (8) is slidably connected to a slider (9), and one end of the slider (9) is connected to an mounting rod (10) connected to the connecting rod (5).

5. A servo spindle in an EDM machine tool according to claim 1, characterized in that: The surface of the mounting tube (4) is provided with a moving groove (11) for the mounting rod (10) to move.

Images