A workpiece positioning platform for an electrical discharge machining (EDM) machine

Abstract

This utility model relates to the field of electrical discharge machining (EDM) machine technology and discloses a workpiece positioning platform for an EDM machine. The platform includes a platform body, an air pump fixedly mounted at the bottom of the platform body, a connecting pipe fixedly connected to the air outlet of the air pump, a slide cylinder fixedly mounted on the side of the inner wall of the platform body, a slide rod slidably mounted on the inner wall of the slide cylinder, and a sliding plate fixedly mounted on the side of the slide rod. A sliding groove is formed on the inner wall of the platform body. The air pump supplies air to the inside of a three-way solenoid valve through the connecting pipe, which in turn supplies air to the inside of the slide cylinder. When the slide rod drives the side of the sliding plate to slide within the inner wall of the sliding groove, the sliding plate, through a top plate and an L-shaped plate, drives a circular plate and a rubber pad to clamp and limit the workpiece. Afterwards, the air pump and the three-way solenoid valve are closed, further assisting the rubber pad in stably clamping the workpiece. The rubber pad is then reset using a tension spring by opening the three-way solenoid valve.

Description

Technical Field

[0001] This utility model relates to the field of electrical discharge machining (EDM) machine technology, specifically to a workpiece positioning platform for an EDM machine. Background Technology

[0002] An electrical discharge machining (EDM) machine is a machine that uses electrical discharge machining technology to manufacture and process metal workpieces. It is often used for processing metal materials with high precision, complex shapes, and high hardness. In order to assist the EDM machine in stably positioning the workpiece during processing, a workpiece positioning platform for the EDM machine is needed.

[0003] In traditional EDM machines, the workpiece positioning platform is usually placed on top of the positioning platform, and then the workpiece is moved by the threaded rod to clamp it. However, the traditional device only uses the threaded rod, which is easily affected by the external environment and rotates. This causes the clamping plate to shift its position and affect the stable clamping of the workpiece. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a workpiece positioning platform for an electrical discharge machining (EDM) machine, thereby solving the problems mentioned in the background section.

[0005] This utility model provides the following technical solution: a workpiece positioning platform for an electrical discharge machining (EDM) machine, comprising a platform body, an air pump fixedly mounted at the bottom of the platform body, a connecting pipe fixedly sleeved at the air outlet of the air pump, a slide cylinder fixedly mounted on the side of the inner wall of the platform body, a slide rod slidably sleeved on the inner wall of the slide cylinder, a slide plate fixedly mounted on the side of the slide rod, a slide groove formed on the inner wall of the platform body, the inner wall of the slide groove slidably connected to the side of the slide plate, a top plate fixedly mounted on the top of the slide plate, a three-way solenoid valve pipe fixedly sleeved on the inner wall of the connecting pipe at the end away from the air pump, the side of the three-way solenoid valve pipe fixedly mounted to the side of the platform body, and the inner wall of the three-way solenoid valve pipe passing through the inner wall of the platform body and communicating with the inner wall of the slide cylinder, an auxiliary cylinder provided at the top of the platform body, a protruding rod slidably sleeved on the inner wall of the auxiliary cylinder, and an auxiliary block fixedly mounted at the bottom of the platform body, the inner wall of the auxiliary block fixedly sleeved to the outer edge of the connecting pipe.

[0006] As a preferred embodiment of this utility model, a tension spring is fixedly connected to the side of the inner wall of the slide cylinder, and the end of the tension spring away from the inner wall of the slide cylinder is fixedly connected to the side of the slide rod.

[0007] As a preferred embodiment of this utility model, a motor is fixedly mounted on the side of the top plate, and the output shaft of the motor passes through the inner wall of the top plate and is fixedly sleeved with a rotating rod.

[0008] As a preferred technical solution of this utility model, the number of the slide plates is two, and the sides of the two slide plates are slidably connected to the inner walls of the slide grooves near the two sides of the platform body, respectively. The top of the slide plate away from the top plate is fixedly equipped with an L-shaped plate, and the top of the inner wall of the L-shaped plate is fixedly equipped with the top of the auxiliary cylinder.

[0009] As a preferred technical solution of this utility model, the side of the L-shaped plate is rotatably connected to a limiting wheel, there are two rotating rods, and the side of the rotating rod away from the motor passes through the inner wall of the L-shaped plate and is fixedly assembled with the side of the limiting wheel. Both rotating rods are fixedly assembled with circular plates, and both circular plates are fixedly assembled with rubber pads. The outer edge of the limiting wheel is provided with a groove, and the shape and size of the concave surface of the inner wall of the groove are adapted to the shape and size of the convex surface at the bottom of the convex rod.

[0010] As a preferred technical solution of this utility model, a spring is fixedly connected to the top of the inner wall of the auxiliary cylinder, and the end of the spring away from the top of the inner wall of the auxiliary cylinder is fixedly connected to the top of the protruding rod. A transmission pipe is fixedly sleeved on the exhaust port of the three-way solenoid valve pipe near the L-shaped plate, and the inner wall of the transmission pipe passes through the inner wall of the L-shaped plate and is fixedly sleeved with the inner wall of the auxiliary cylinder.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The workpiece positioning platform of this EDM machine uses an air pump and a connecting pipe. The air pump supplies air to the inside of the three-way solenoid valve through the connecting pipe, and then supplies air to the inside of the slide cylinder through the three-way solenoid valve. The slide rod drives the side of the slide plate to slide in the inner wall of the slide groove. The slide plate drives the round plate and rubber pad to clamp and limit the workpiece through the top plate and L-shaped plate. Then, the air pump and the three-way solenoid valve are turned off, which helps the rubber pad to stably clamp the workpiece. By turning on the three-way solenoid valve, the tension spring helps the rubber pad to reset.

[0013] 2. The workpiece positioning platform of this EDM machine uses a motor and a rotating rod. The motor drives the workpiece to rotate through the rotating rod and rubber pad. The groove on the inner wall of the limiting wheel pushes the convex rod back into the inner wall of the auxiliary cylinder until the motor stops. The spring in the inner wall of the auxiliary cylinder pushes the convex rod downward, and then the convex surface of the convex rod fits against the concave surface of the groove for limiting. The auxiliary pad limits the workpiece. The three-way solenoid valve tube and the transmission tube further stabilize the limiting of the convex surface of the convex rod against the concave surface of the groove, thereby ensuring the stability of the workpiece's limiting position. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2This is a schematic diagram of the orthographic section of the present invention;

[0016] Figure 3 This is a three-dimensional structural diagram of the present invention from another angle;

[0017] Figure 4 This is a schematic diagram of the internal structure of the platform body of this utility model;

[0018] Figure 5 This is a schematic diagram of the limiting wheel structure of this utility model.

[0019] In the diagram: 1. Platform body; 2. Air pump; 3. Connecting pipe; 4. Slide cylinder; 5. Three-way solenoid valve pipe; 6. Tension spring; 7. Slide rod; 8. Slide plate; 9. Slide groove; 10. Top plate; 11. Motor; 12. Rotating rod; 13. Circular plate; 14. Rubber pad; 15. L-shaped plate; 16. Limiting wheel; 17. Groove; 18. Auxiliary cylinder; 19. Spring; 20. Protruding rod; 21. Transmission pipe; 22. Auxiliary block. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-5A workpiece positioning platform for an electrical discharge machining (EDM) machine includes a platform body 1. An air pump 2 is fixedly mounted at the bottom of the platform body 1. A connecting pipe 3 is fixedly sleeved at the air outlet of the air pump 2. A slide cylinder 4 is fixedly mounted on the side of the inner wall of the platform body 1. A slide rod 7 is slidably sleeved on the inner wall of the slide cylinder 4. A slide plate 8 is fixedly mounted on the side of the slide rod 7. A groove 9 is formed on the inner wall of the platform body 1, and the inner wall of the groove 9 is slidably connected to the side of the slide plate 8. A top plate 10 is fixedly mounted on the top of the slide plate 8. A three-way solenoid valve pipe 5 is fixedly sleeved on the inner wall of the connecting pipe 3 at the end away from the air pump 2. The side of the three-way solenoid valve pipe 5 is fixedly mounted to the side of the platform body 1, and the inner wall of the three-way solenoid valve pipe 5 passes through the inner wall of the platform body 1 and connects with the slide plate 8. The inner walls of cylinder 4 are connected. An auxiliary cylinder 18 is provided on the top of the platform body 1. A protruding rod 20 is slidably sleeved on the inner wall of the auxiliary cylinder 18. An auxiliary block 22 is fixedly installed at the bottom of the platform body 1. The inner wall of the auxiliary block 22 is fixedly sleeved with the outer edge of the connecting pipe 3. Through the cooperation of the air pump 2 and the connecting pipe 3, the air pump 2 supplies air to the inside of the sliding cylinder 4 through the connecting pipe 3. When the sliding rod 7 slides in the inner wall of the sliding cylinder 4, the sliding rod 7 drives the side of the sliding plate 8 to slide in the inner wall of the sliding groove 9. Then, the sliding plate 8 drives the top plate 10 to move. Through the addition of the three-way solenoid valve pipe 5, the auxiliary control device supplies air to the inside of the sliding cylinder 4 and facilitates the closure of the air supply port inside the device, thus assisting in the sealing of the inside of the sliding cylinder 4.

[0022] In a preferred embodiment, a tension spring 6 is fixedly connected to the side of the inner wall of the slide cylinder 4, and the end of the tension spring 6 away from the inner wall of the slide cylinder 4 is fixedly connected to the side of the slide rod 7. Through the cooperation of the tension spring 6 and the slide rod 7, the tension spring 6 pulls the slide rod 7 to move in the inner wall of the slide cylinder 4, thereby using the slide rod 7 to drive the top plate 10 to move away from the workpiece.

[0023] In a preferred embodiment, a motor 11 is fixedly mounted on the side of the top plate 10. The output shaft of the motor 11 passes through the inner wall of the top plate 10 and is fixedly sleeved with a rotating rod 12. Through the cooperation of the motor 11 and the rotating rod 12, the motor 11 drives the rotating rod 12 to rotate. Thus, when the rotating rod 12 drives the rubber pad 14 to clamp the workpiece, the rotating rod 12 drives the workpiece to rotate.

[0024] In a preferred embodiment, there are two slide plates 8, and the sides of the two slide plates 8 are slidably connected to the inner walls of the slide grooves 9 on both sides of the platform body 1. The top of the slide plate 8 away from the top plate 10 is fixedly fitted with an L-shaped plate 15, and the top of the inner wall of the L-shaped plate 15 is fixedly fitted with the top of the auxiliary cylinder 18. The two slide plates 8 drive the two rubber pads 14 to move, thereby assisting the workpiece to be stably clamped and limited.

[0025] In a preferred embodiment, a limiting wheel 16 is rotatably connected to the side of the L-shaped plate 15. There are two rotating rods 12, and the side of the rotating rod 12 away from the motor 11 passes through the inner wall of the L-shaped plate 15 and is fixedly assembled with the side of the limiting wheel 16. A circular plate 13 is fixedly assembled on the side of each of the two rotating rods 12, and a rubber pad 14 is fixedly assembled on the side of each of the two circular plates 13. A groove 17 is provided on the outer edge of the limiting wheel 16, and the shape and size of the concave surface of the inner wall of the groove 17 are adapted to the shape and size of the convex surface at the bottom of the protruding rod 20. With the addition of the limiting wheel 16, when the two rotating rods 12 drive the two rubber pads 14 to clamp and limit the workpiece through the two circular plates 13, the limiting wheel 16 rotates stably with the workpiece, thereby assisting the convex surface of the protruding rod 20 to limit the groove 17 at different positions on the outer edge of the limiting wheel 16, thus assisting in limiting the workpiece.

[0026] In a preferred embodiment, a spring 19 is fixedly connected to the top of the inner wall of the auxiliary cylinder 18, and the end of the spring 19 away from the top of the inner wall of the auxiliary cylinder 18 is fixedly connected to the top of the protruding rod 20. A transmission pipe 21 is fixedly sleeved on the exhaust port of the three-way solenoid valve pipe 5 near the L-shaped plate 15, and the inner wall of the transmission pipe 21 passes through the inner wall of the L-shaped plate 15 and is fixedly sleeved on the inner wall of the auxiliary cylinder 18. Through the cooperation of the spring 19 and the protruding rod 20, the spring 19 assists in pushing the convex surface of the protruding rod 20 to fit and limit the concave surface of the groove 17. Furthermore, through the addition of the transmission pipe 21, the transmission pipe 21 assists in supplying air to the inside of the auxiliary cylinder 18, thereby further ensuring that the protruding rod 20 and the inner wall of the groove 17 are stably fitted and limited.

[0027] Working principle: When the device is in use, the air pump 2 supplies air to the inside of the three-way solenoid valve pipe 5 through the connecting pipe 3, which in turn supplies air to the inside of the slide cylinder 4. Then, the slide rod 7 drives the side of the sliding plate 8 to slide within the inner wall of the slide groove 9. The sliding plate 8, through the top plate 10 and the L-shaped plate 15, drives the circular plate 13 and the rubber pad 14 to clamp and limit the workpiece. Afterwards, the air pump 2 and the three-way solenoid valve pipe 5 are closed, further assisting the rubber pad 14 in stably clamping the workpiece. By opening the three-way solenoid valve pipe 5, the tension spring 6 assists the rubber pad 14 in resetting, utilizing electricity... The machine 11 drives the workpiece to rotate via the rotating rod 12 and the rubber pad 14. The groove 17 on the inner wall of the limiting wheel 16 pushes the protruding rod 20 back into the inner wall of the auxiliary cylinder 18 until the motor 11 stops operating. The spring 19 pushes the protruding rod 20 down in the inner wall of the auxiliary cylinder 18, and then the convex surface of the protruding rod 20 fits against the concave surface of the groove 17 to limit the movement. The auxiliary pad then limits the movement of the workpiece. The three-way solenoid valve tube 5 and the transmission tube 21 further ensure the stable limiting of the workpiece by using the convex surface of the protruding rod 20 to fit against the concave surface of the groove 17.

[0028] 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 workpiece positioning platform for an electrical discharge machining (EDM) machine, comprising a platform body (1), characterized in that: An air pump (2) is fixedly mounted at the bottom of the platform body (1). A connecting pipe (3) is fixedly sleeved at the air outlet of the air pump (2). A slide cylinder (4) is fixedly mounted on the side of the inner wall of the platform body (1). A slide rod (7) is slidably sleeved on the inner wall of the slide cylinder (4). A slide plate (8) is fixedly mounted on the side of the slide rod (7). A slide groove (9) is opened on the inner wall of the platform body (1), and the inner wall of the slide groove (9) is slidably connected to the side of the slide plate (8). A top plate (10) is fixedly mounted on the top of the slide plate (8). The connecting pipe (3) is away from the air pump. A three-way solenoid valve tube (5) is fixedly sleeved on the inner wall of one end of the pump (2). The side of the three-way solenoid valve tube (5) is fixedly assembled with the side of the platform body (1). The inner wall of the three-way solenoid valve tube (5) passes through the inner wall of the platform body (1) and is connected to the inner wall of the slide cylinder (4). An auxiliary cylinder (18) is provided on the top of the platform body (1). A protruding rod (20) is slidably sleeved on the inner wall of the auxiliary cylinder (18). An auxiliary block (22) is fixedly assembled on the bottom of the platform body (1). The inner wall of the auxiliary block (22) is fixedly sleeved with the outer edge of the connecting pipe (3).

2. The workpiece positioning platform for an EDM machine according to claim 1, characterized in that: A tension spring (6) is fixedly connected to the side of the inner wall of the slide cylinder (4), and the end of the tension spring (6) away from the inner wall of the slide cylinder (4) is fixedly connected to the side of the slide rod (7).

3. The workpiece positioning platform for an EDM machine according to claim 1, characterized in that: A motor (11) is fixedly mounted on the side of the top plate (10), and the output shaft of the motor (11) passes through the inner wall of the top plate (10) and is fixedly sleeved with a rotating rod (12).

4. The workpiece positioning platform for an EDM machine according to claim 3, characterized in that: The number of the slide plates (8) is two, and the sides of the two slide plates (8) are slidably connected to the inner walls of the slide grooves (9) on both sides of the platform body (1). The top of the slide plate (8) away from the top plate (10) is fixedly fitted with an L-shaped plate (15), and the top of the inner wall of the L-shaped plate (15) is fixedly fitted with the top of the auxiliary cylinder (18).

5. A workpiece positioning platform for an EDM machine according to claim 4, characterized in that: The side of the L-shaped plate (15) is rotatably connected to a limiting wheel (16). There are two rotating rods (12), and the side of the rotating rod (12) away from the motor (11) passes through the inner wall of the L-shaped plate (15) and is fixedly assembled with the side of the limiting wheel (16). Both rotating rods (12) are fixedly assembled with round plates (13), and both round plates (13) are fixedly assembled with rubber pads (14). The outer edge of the limiting wheel (16) is provided with a groove (17), and the shape and size of the concave surface of the inner wall of the groove (17) are adapted to the shape and size of the convex surface at the bottom of the convex rod (20).

6. A workpiece positioning platform for an EDM machine according to claim 5, characterized in that: A spring (19) is fixedly connected to the top of the inner wall of the auxiliary cylinder (18), and the end of the spring (19) away from the top of the inner wall of the auxiliary cylinder (18) is fixedly connected to the top of the protruding rod (20). A transmission pipe (21) is fixedly sleeved on the exhaust port of the three-way solenoid valve pipe (5) near the L-shaped plate (15), and the inner wall of the transmission pipe (21) passes through the inner wall of the L-shaped plate (15) and is fixedly sleeved on the inner wall of the auxiliary cylinder (18).

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