Shaft special for electric spark discharge machining machine
By designing a steering mechanism and a water-cooling system for a dedicated spindle in an EDM machine, the problem of insufficient angle adjustment of existing dedicated spindles in EDM machines has been solved. This enables arbitrary orientation adjustment of the electrode head and efficient cooling, expanding the range of applicable machining processes and improving machining efficiency.
Patent Information
- Application Number
- CN202520067941.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-11
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-11
AI Technical Summary
The lack of angle adjustment function on the dedicated axes of existing machining machines leads to limitations in machining.
A special shaft for an electrical discharge machining (EDM) machine was designed, which includes a steering mechanism and a water cooling system. The first motor drives the swing base to rotate and the second motor drives the rotary table to rotate, so as to realize the arbitrary orientation adjustment of the electrode head. It is equipped with water cooling pipes and a fan for cooling.
It enables arbitrary orientation adjustment and efficient cooling of the dedicated axis of the machining center, expands the range of machining applications, and improves machining efficiency and heat dissipation of the equipment.
Smart Images

Figure CN223699560U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical discharge machining technology, specifically a special shaft for electrical discharge machining machines. Background Technology
[0002] Micro-electrical discharge machining (EDM) technology has a series of advantages, such as simple equipment, good controllability, no cutting force, and strong applicability. It has great advantages in the machining of small-scale parts and has great application potential in the micro-machining of micro-devices.
[0003] Currently, the ends of existing machining machine dedicated shafts are fixed and can only move in the horizontal plane along with the shaft body. Due to the lack of angle adjustment function, there are certain limitations in machining. Utility Model Content
[0004] To address the issue that existing machining machine dedicated axes lack angle adjustment functionality, this utility model provides a dedicated axis for electrical discharge machining (EDM) machines.
[0005] In view of the above problems, the technical solution proposed by this utility model is as follows:
[0006] A special shaft for an electrical discharge machining (EDM) machine includes a bushing. The bottom end of the bushing is provided with a steering mechanism. The steering mechanism includes an outer cylinder. The bottom end of the bushing is fixedly connected to the outer cylinder. The bottom end of the outer cylinder is rotatably connected to a rotary table. The bottom end of the rotary table is hinged to a swing seat. An electrode head is installed at the bottom end of the swing seat. A first motor is installed on one side of the outer wall of the rotary table. The output end of the first motor is drivenly connected to one side of the swing seat. A second motor is installed inside the outer cylinder. The output end of the second motor is drivenly connected to the top end of the rotary table.
[0007] Furthermore, the bushing is provided with a water-cooling pipe inside, which includes a spiral copper tube, and the two ends of the spiral copper tube are respectively equipped with a water inlet connector and a water outlet connector.
[0008] The beneficial effect of adopting the above-mentioned further solution is that, through the combined use of the inlet and outlet water connectors, circulating coolant can be introduced into the spiral copper tube, thereby achieving cooling treatment inside the bushing.
[0009] Furthermore, one end of the water inlet connector and the water outlet connector respectively extends to the outside of the bushing, and the water inlet connector is located at the bottom of the water outlet connector.
[0010] The beneficial effect of adopting the above-mentioned further solution is that, by utilizing the positional relationship between the inlet and outlet connectors, the coolant inside the spiral copper tube can fully complete heat exchange.
[0011] Furthermore, a rotating shaft is installed on the inner wall of the bushing, and a clamp is rotatably connected to the bushing via the rotating shaft. The inner wall of the clamp is in contact with the outer wall of the spiral copper tube.
[0012] The beneficial effect of adopting the above-mentioned further solution is that by rotating the clamp on one side of the shaft, the clamp can not only secure the spiral copper tube, but also shift its direction along with the spiral copper tube.
[0013] Furthermore, the bushing includes a sleeve, and an air inlet is provided at the bottom of the outer wall of the sleeve, and a fan is embedded inside the air inlet.
[0014] The beneficial effect of adopting the above-mentioned further solution is that by setting the air inlet, it provides space for the installation and use of the fan, and by utilizing the blowing action of the fan, it can accelerate the airflow velocity inside the bushing cavity, thereby improving the heat dissipation effect.
[0015] Furthermore, the top end of the bushing is connected to an assembly head, the assembly head including a tube, and shaft holes are respectively opened on both sides of the outer wall of the tube.
[0016] The advantage of adopting the above-mentioned further solution is that the use of the tube and the shaft hole makes it easier for the bushing to connect to the corresponding drive device.
[0017] Furthermore, an exhaust port is provided at the top of the outer wall of the bushing.
[0018] The advantage of adopting the above-mentioned further solution is that the setting of the exhaust port facilitates the discharge of hot airflow inside the bushing.
[0019] Furthermore, the top of the rotating platform extends into the interior of the outer cylinder and is fitted with an anti-detachment ring, which is located at the bottom interior of the outer cylinder.
[0020] The beneficial effect of adopting the above-mentioned further solution is that by using the anti-detachment ring set, the rotary table can be effectively prevented from detaching from the bottom of the outer cylinder.
[0021] Compared with the prior art, the beneficial effects of this utility model are:
[0022] This special shaft for electrical discharge machining (EDM) allows for arbitrary orientation adjustment through the coordination of a steering mechanism and the electrode head, making it suitable for a wider range of machining operations. Specifically, the first motor output drives the swing base to rotate, allowing the bottom of the swing base to adjust the electrode head to any tilt angle. Then, the second motor output drives the rotary table to rotate, causing the rotary table to orient the electrode head in different directions until the electrode head in the special shaft is adjusted to the desired position. Attached Figure Description
[0023] Figure 1 A front perspective view of a special shaft for an electrical discharge machining (EDM) machine provided by this utility model;
[0024] Figure 2 A rear perspective view of a special shaft for an electrical discharge machining machine provided by this utility model;
[0025] Figure 3 A schematic diagram showing the unfolded steering mechanism of a special shaft for an electrical discharge machining (EDM) machine provided by this utility model;
[0026] Figure 4 A cross-sectional view of a bushing structure for a special shaft of an electrical discharge machining (EDM) machine provided by this utility model;
[0027] Figure 5 A schematic diagram of a water-cooling pipe for a special shaft of an electrical discharge machining (EDM) machine provided by this utility model.
[0028] In the diagram: 100, bushing; 1001, sleeve; 1002, air inlet; 200, steering mechanism; 2001, outer cylinder; 2002, rotary table; 2003, first motor; 2004, swing seat; 2005, second motor; 2006, anti-detachment ring; 300, electrode head; 400, fan; 500, water-cooled pipe; 5001, spiral copper pipe; 5002, water inlet connector; 5003, water outlet connector; 600, assembly head; 6001, insertion tube; 6002, shaft hole; 700, exhaust port; 800, rotating shaft; 900, clamp. Detailed Implementation
[0029] 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.
[0030] Example 1
[0031] Please see Figures 1-5This utility model provides a technical solution: a special shaft for an electrical discharge machining (EDM) machine, including a bushing 100. A steering mechanism 200 is provided at the bottom end of the bushing 100. The steering mechanism 200 includes an outer cylinder 2001. The bottom end of the bushing 100 is fixedly connected to the outer cylinder 2001. A rotary table 2002 is rotatably connected to the bottom end of the outer cylinder 2001. A swing base 2004 is hinged to the bottom end of the rotary table 2002. An electrode head 300 is mounted at the bottom end of the swing base 2004. A first motor 2003 is mounted on one side of the outer wall of the rotary table 2002. The output end of the first motor 2003 is connected to the swing base 2002. A transmission connection is made on one side of the outer cylinder 2001. A second motor 2005 is installed inside the outer cylinder 2001. The output end of the second motor 2005 is connected to the top of the rotating platform 2002. The output end of the first motor 2003 drives the swing base 2004 to rotate, allowing the bottom of the swing base 2004 to adjust the electrode head 300 to any tilt angle. The output end of the second motor 2005 then drives the rotating platform 2002 to rotate, causing the rotating platform 2002 to orient the electrode head 300 towards different directions until the electrode head 300 in the dedicated shaft is adjusted to the desired position. The technical solutions of the present invention 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 invention, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.
[0032] Example 2
[0033] Please see Figures 1-5 As an embodiment of this utility model, the bushing 100 is further provided with a water-cooling pipe 500 inside. The water-cooling pipe 500 includes a spiral copper tube 5001. A water inlet connector 5002 and a water outlet connector 5003 are respectively installed at both ends of the spiral copper tube 5001. Through the cooperation of the water inlet connector 5002 and the water outlet connector 5003, circulating coolant can be introduced into the spiral copper tube 5001, thereby achieving cooling treatment inside the bushing 100. One end of the water inlet connector 5002 and the water outlet connector 5003 respectively extends to the outside of the bushing 100, and the water inlet connector 5002... 002 is located at the bottom of the water outlet connector 5003. By utilizing the positional relationship between the water inlet connector 5002 and the water outlet connector 5003, the coolant inside the spiral copper tube 5001 can fully complete heat exchange. The inner wall of the bushing 100 is equipped with a rotating shaft 800. The bushing 100 is rotatably connected to a clamp 900 through the rotating shaft 800. The inner wall of the clamp 900 is in contact with the outer wall of the spiral copper tube 5001. By rotating the clamp 900 on one side of the rotating shaft 800, the clamp 900 can not only clamp the spiral copper tube 5001, but also follow the spiral copper tube 5001 to achieve directional displacement.
[0034] Example 3
[0035] Please see Figures 1-5 As an embodiment of this utility model, the bushing 100 further includes a sleeve 1001. An air inlet 1002 is provided at the bottom end of the outer wall of the sleeve 1001. A fan 400 is embedded inside the air inlet 1002. The air inlet 1002 provides space for the installation and use of the fan 400, and the blowing action of the fan 400 accelerates the airflow within the cavity of the bushing 100, thereby improving heat dissipation. An assembly head 600 is connected to the top end of the bushing 100. The assembly head 600 includes an insertion tube 6001, and the outer wall of the insertion tube 6001 has two... The bushing 100 is connected to the corresponding drive device by means of the insertion tube 6001 and the bushing hole 6002. The top of the outer wall of the bushing 100 is provided with an exhaust port 700 to facilitate the discharge of hot air from the bushing 100. The top of the rotary table 2002 extends into the interior of the outer cylinder 2001 and is fitted with an anti-detachment ring 2006. The anti-detachment ring 2006 is located at the bottom of the interior of the outer cylinder 2001. The use of the anti-detachment ring 2006 can effectively prevent the rotary table 2002 from detaching from the bottom of the outer cylinder 2001.
[0036] Specifically, the working principle of this special shaft for electrical discharge machining is as follows: First, check the structure of the special shaft for integrity. After confirming its integrity, it can be put into use. The first motor 2003 is started, causing its output to drive the swing base 2004 to rotate. This allows the bottom of the swing base 2004 to adjust the electrode head 300 to any tilt angle. Then, the second motor 2005 is started, causing its output to drive the rotary table 2002 to rotate, causing the rotary table 2002 to move the electrode head 300 towards... The electrode head 300 in the special shaft is adjusted to the required position from different orientations. By connecting the circulation pipes of the inlet connector 5002 and the outlet connector 5003, circulating coolant can be introduced into the spiral copper tube 5001, thereby achieving cooling treatment inside the bushing 100. By starting the fan 400, it can be made to blow air, thereby accelerating the airflow in the cavity inside the bushing 100, thereby improving the heat dissipation effect. And the exhaust port 700 is set to facilitate the discharge of hot airflow inside the bushing 100.
Claims
1. A special shaft for an electrical discharge machining (EDM) machine, characterized in that, The device includes a bushing (100), the bottom end of which is provided with a steering mechanism (200). The steering mechanism (200) includes an outer cylinder (2001). The bottom end of the bushing (100) is fixedly connected to the outer cylinder (2001). The bottom end of the outer cylinder (2001) is rotatably connected to a rotating platform (2002). The bottom end of the rotating platform (2002) is hinged to a swing seat (2004). The bottom end of the swing seat (2004) is equipped with an electrode head (300). A first motor (2003) is installed on one side of the outer wall of the rotating platform (2002). The output end of the first motor (2003) is drivenly connected to one side of the swing seat (2004). A second motor (2005) is installed inside the outer cylinder (2001). The output end of the second motor (2005) is drivenly connected to the top end of the rotating platform (2002).
2. The special shaft for an electrical discharge machining machine according to claim 1, characterized in that, The bushing (100) is provided with a water cooling pipe (500) inside. The water cooling pipe (500) includes a spiral copper pipe (5001). The two ends of the spiral copper pipe (5001) are respectively equipped with a water inlet connector (5002) and a water outlet connector (5003).
3. A special shaft for an electrical discharge machining (EDM) machine according to claim 2, characterized in that, One end of the water inlet connector (5002) and the water outlet connector (5003) extend to the outside of the bushing (100), and the water inlet connector (5002) is located at the bottom of the water outlet connector (5003).
4. A special shaft for an electrical discharge machining machine according to claim 3, characterized in that, The inner wall of the bushing (100) is fitted with a rotating shaft (800), and the bushing (100) is rotatably connected to a clip (900) via the rotating shaft (800). The inner wall of the clip (900) is in contact with the outer wall of the spiral copper tube (5001).
5. A special shaft for an electrical discharge machining machine according to claim 1, characterized in that, The bushing (100) includes a sleeve (1001), and an air inlet (1002) is provided at the bottom of the outer wall of the sleeve (1001). A fan (400) is embedded in the air inlet (1002).
6. A special shaft for an electrical discharge machining machine according to claim 1, characterized in that, The top end of the bushing (100) is connected to an assembly head (600), the assembly head (600) includes a tube (6001), and shaft holes (6002) are respectively opened on both sides of the outer wall of the tube (6001).
7. A special shaft for an electrical discharge machining (EDM) machine according to claim 1, characterized in that, The bushing (100) has an exhaust port (700) at the top of its outer wall.
8. A special shaft for an electrical discharge machining machine according to claim 1, characterized in that, The top of the rotating platform (2002) extends into the interior of the outer cylinder (2001) and is fitted with an anti-detachment ring (2006), which is located at the bottom interior of the outer cylinder (2001).