Replacing mechanism for electric discharge machine

Abstract

The utility model discloses a replacement mechanism for an electric discharge machine, which relates to the field of electric discharge machines, and has the technical scheme that the replacement mechanism comprises an electric discharge machining head, a base and a horizontally arranged turntable, the turntable is rotationally connected to the top of the base through a motor, and a plurality of clamping components for clamping the electric discharge machining head are mounted on the turntable. When the electric spark machining head is damaged and needs to be disassembled, the damaged electric spark machining head is disassembled to one of the clamping assemblies and is clamped, and the motor is started to drive the rotating disc to rotate and drive the other clamping assemblies to rotate. The electric spark machining heads damaged in the using process can be detached to other unused clamping assemblies, so that the multiple clamping assemblies can clamp the multiple electric spark machining heads detached from the electric spark machine for multiple times, and an operator can detach and replace the electric spark machining heads on the multiple clamping assemblies in a centralized mode; and the treatment times and frequency after an operator disassembles the electric spark machining head are reduced.

Description

Technical Field

[0001] This utility model relates to the field of electrical discharge machines, and more specifically, it relates to a replacement mechanism for an electrical discharge machine. Background Technology

[0002] An electrical discharge machining (EDM) machine is a type of machining equipment primarily used for EDM processing. It is widely used in the manufacture of various metal molds and mechanical equipment. The EDM machine utilizes the electro-erosion effect generated by pulsed discharge between two electrodes immersed in a working fluid to remove conductive materials. Current EDM machines use an EDM head to erode materials, but when the EDM head malfunctions, it needs to be disassembled and replaced. This means that the operator needs to process the EDM head every time it is disassembled, resulting in a high frequency of processing after disassembly. Furthermore, it is inconvenient to collect and process multiple disassembled EDM heads after replacement.

[0003] Therefore, a new solution is needed to address this problem. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a replacement mechanism for an EDM machine.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a replacement mechanism for an electrical discharge machine, including an electrical discharge machining head and a base, and a turntable arranged horizontally. The turntable is connected to the top of the base by a motor. Multiple clamping components for clamping the electrical discharge machining head are installed on the turntable, and the multiple clamping components are arranged in a ring array along the circumference of the turntable.

[0006] Preferably, the clamping assembly includes a left jaw, a right jaw, and a stop post. The left jaw and the right jaw are rotatably connected to the top of the turntable, and the stop post is disposed on the turntable between the left jaw and the right jaw to separate the left jaw and the right jaw. After the left jaw and the right jaw rotate, the clamping ends of the left jaw and the right jaw move closer to each other or further away from each other. The mounting ends of the left jaw and the right jaw are each provided with a mounting post, and a tension spring is connected between the two mounting posts. The tension spring is located directly above the stop post.

[0007] Preferably, the mounting ends of the left and right jaws are rotatably connected to the turntable, and a mounting groove for clamping the EDM head is formed between the clamping ends of the left and right jaws.

[0008] Preferably, the mounting ends of the left and right grippers are rotatably connected to the turntable via mounting shafts. The mounting shaft includes a threaded section threaded to the turntable, a rotating shaft section rotatably connected to the mounting ends of the left or right grippers, and a mounting head disposed at the end of the rotating shaft section away from the threaded section. The mounting head abuts against the mounting ends of the left or right grippers. The threaded section, rotating shaft section, and mounting head of the mounting shaft are integrally formed. The mounting post on the left gripper is located between the mounting shaft and the clamping end of the left gripper, and the mounting post on the right gripper is located between the mounting shaft and the clamping end of the right gripper.

[0009] Preferably, a magnetic block is fixedly connected to the bottom of the mounting post, and the mounting ends of the left and right grippers are each provided with mounting holes corresponding to the mounting post. The left and right grippers are both made of ferromagnetic metal, and the mounting post is fixed in the corresponding mounting hole by the magnetic force of the magnetic block.

[0010] In summary, this utility model has the following beneficial effects: This solution uses a turntable rotatably connected to a base, with multiple clamping components installed on the turntable. When the EDM machine is using an EDM head to etch materials and the EDM head is damaged and needs to be replaced, the damaged EDM head is disassembled and attached to one of the clamping components. The clamping component holds the EDM head in place, preventing it from falling off the base. Then, the motor is started to drive the turntable to rotate, which in turn drives the other clamping components to rotate. Damaged EDM heads can then be disassembled and attached to other unused clamping components. This allows multiple clamping components to hold multiple EDM heads removed from the EDM machine multiple times, enabling the operator to centrally disassemble and replace EDM heads from multiple clamping components. This reduces the number and frequency of processing after disassembling EDM heads and facilitates the centralized collection and processing of the replaced EDM heads. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 for Figure 1 Enlarged schematic diagram of part A;

[0013] Figure 3 This is a partial exploded view of the present invention;

[0014] Figure 4 for Figure 3 Enlarged schematic diagram of part B.

[0015] In the diagram: 1. Electrical discharge machining head; 2. Base; 3. Turntable; 4. Left jaw; 5. Right jaw; 6. Support post; 7. Mounting post; 8. Tension spring; 9. Mounting groove; 10. Mounting shaft; 101. Threaded section; 102. Rotating shaft section; 103. Mounting head; 11. Magnetic block; 12. Mounting hole. Detailed Implementation

[0016] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] Example:

[0018] A changing mechanism for an EDM machine, such as Figures 1 to 4As shown, the device includes an electrical discharge machining (EDM) head 1 and a base 2, as well as a horizontally arranged turntable 3. The turntable 3 is rotatably connected to the top of the base 2 via a motor, and the output end of the motor is mounted on the turntable 3. Multiple clamping assemblies for holding the EDM head 1 are mounted on the turntable 3, arranged in a circular array around the circumference of the turntable 3. Each clamping assembly includes a left jaw 4, a right jaw 5, and a stop post 6. The left jaw 4 and right jaw 5 are rotatably connected to the top of the turntable 3, respectively. The stop post 6 is positioned on the turntable 3 between the left jaw 4 and right jaw 5 to separate them. The outer peripheral wall of the bottom end of the stop post 6 is machined with external threads. The turntable 3 has a threaded hole for threaded connection to the bottom end of the abutment 6. After the left jaw 4 and right jaw 5 rotate, the clamping ends of the left jaw 4 and right jaw 5 move closer or further apart. Mounting posts 7 are provided on the mounting ends of both the left jaw 4 and right jaw 5. A tension spring 8 connects the two mounting posts 7, located directly above the abutment 6. The mounting ends of both the left jaw 4 and right jaw 5 are rotatably connected to the turntable 3. A mounting groove 9 for clamping the EDM head 1 is formed between the clamping ends of the left jaw 4 and right jaw 5. Both the mounting ends of the left jaw 4 and right jaw 5 are connected via mounting shafts. The mounting shaft 10 is rotatably connected to the turntable 3. The mounting shaft 10 includes a threaded section 101 threadedly connected to the turntable 3, a rotating shaft section 102 rotatably connected to the mounting end of the left jaw 4 or the right jaw 5, and a mounting head 103 located at the end of the rotating shaft section 102 away from the threaded section 101. The diameter of the mounting head 103 is larger than the diameter of the rotating shaft section 102. The turntable 3 has a threaded hole for threaded connection with the threaded section 101. Both the mounting end of the left jaw 4 and the mounting end of the right jaw 5 have receiving holes for accommodating the rotating shaft section 102. The mounting head 103 abuts against the mounting end of the left jaw 4 or the mounting end of the right jaw 5. The threaded section 101, rotating section 102, and mounting head 103 of the mounting shaft 10 are integrally formed. The mounting post 7 on the left jaw 4 is located between the mounting shaft 10 and the clamping end of the left jaw 4. The mounting post 7 on the right jaw 5 is located between the mounting shaft 10 and the clamping end of the right jaw 5. A magnetic block 11 is bonded to the bottom of the mounting post 7. The mounting ends of the left jaw 4 and the right jaw 5 are both provided with mounting holes 12 corresponding to the mounting post 7. The left jaw 4 and the right jaw 5 are both made of ferromagnetic metal. The mounting post 7 is fixed in the corresponding mounting hole 12 by the magnetic force of the magnetic block 11.

[0019] When the EDM machine uses the EDM head 1 to perform material removal processing, and the EDM head 1 is damaged and needs to be disassembled and replaced, the damaged EDM head 1 is disassembled and attached to one of the clamping components. The top of the EDM head 1 is gradually inserted into the mounting groove 9 formed between the clamping ends of the left jaw 4 and the right jaw 5. At this time, the EDM head 1 pushes the clamping ends of the left jaw 4 and the right jaw 5 apart, causing them to move away from each other. During this process, the mounting ends of the left jaw 4 and the right jaw 5 rotate. At this time, neither the mounting ends of the left jaw 4 nor the mounting ends of the right jaw 5 are in contact with the abutment 6. The rotating shaft section 102 located on the mounting end of the left gripper 4 rotates within the receiving hole on the mounting end of the left gripper 4, and the mounting head 103 located on the mounting end of the left gripper 4 abuts against the top of the mounting end of the left gripper 4 to prevent the left gripper 4 from detaching from the turntable 3 during rotation. The rotating shaft section 102 located on the mounting end of the right gripper 5 rotates within the receiving hole on the mounting end of the right gripper 5, and the mounting head 103 located on the mounting end of the right gripper 5 abuts against the top of the mounting end of the right gripper 5, thereby allowing the left gripper 4 and the right gripper 5 to rotate in a direction away from each other. During the process of the left gripper 4 and the right gripper 5 moving away from each other, the ends of the tension springs 8 located on the mounting ends of the left gripper 4 and the right gripper 5 are gradually stretched and deformed, and the mounting post of the left gripper 4... The magnetic block 11 on the mounting post 7 of the right jaw 5 attracts the inner wall of the mounting hole 12 on the mounting end of the left jaw 4. The magnetic block 11 on the mounting post 7 of the right jaw 5 attracts the inner wall of the mounting hole 12 on the mounting end of the right jaw 5. This continues until the EDM head 1 pushes the left jaw 4 and the right jaw 5 apart, and the top of the EDM head 1 is located in the mounting groove 9 formed between the clamping ends of the left jaw 4 and the right jaw 5. When the EDM head 1 is in the mounting groove 9, the ends of the tension spring 8 return to their original deformation and pull the left jaw 4 and the right jaw 5 back. At this time, the mounting ends of the left jaw 4 and the right jaw 5 rotate towards each other, and during the process of the mounting ends of the left jaw 4 and the right jaw 5 approaching each other, they respectively drive the left jaw 4 and the right jaw 5 to rotate towards each other. The clamping ends of the left jaw 4 and the right jaw 5 approach each other until both the mounting ends of the left jaw 4 and the right jaw 5 are in contact with the abutment 6. At this point, the top of the EDM head 1 is clamped by the clamping ends of the left jaw 4 and the right jaw 5. The clamping assembly holds the EDM head 1 to prevent it from falling off the base 2. Then, the turntable 3 is driven to rotate by the start motor. When the turntable 3 rotates, it drives multiple clamping assemblies arranged in a circular array and the EDM head 1 clamped by the clamping assemblies to rotate. Other unused clamping assemblies are rotated to the positions of the previously used clamping assemblies. EDM heads 1 that are damaged during subsequent use can be disassembled and attached to other unused clamping assemblies.This design allows multiple clamping components to hold multiple EDM heads 1 that have been removed from the EDM machine multiple times. This enables the operator to centrally remove and replace multiple EDM heads 1 from the clamping components, reducing the number of times and frequency of processing after removing the EDM heads 1. It also facilitates the centralized collection and processing of the removed EDM heads 1.

[0020] When the clamping assembly is damaged and needs to be disassembled and replaced, the mounting shafts 10 on the left jaw 4 and right jaw 5 are removed. First, the mounting head 103 on the mounting end of the left jaw 4 is rotated to prevent them from contacting each other, and the threaded section 101 on the mounting end of the left jaw 4 is disengaged from the threaded hole on the turntable 3. The rotating shaft section 102 and the threaded section 101 on the mounting end of the left jaw 4 are also disengaged from the receiving hole on the mounting end of the left jaw 4. Then, the mounting head 103 on the mounting end of the right jaw 5 is rotated to disengage the threaded section 101 on the mounting end of the right jaw 5 from the threaded hole on the turntable 3, and the rotating shaft section 102 and the threaded section 101 on the mounting end of the right jaw 5 are also disengaged. By disengaging from the receiving hole on the mounting end of the right gripper 5, the left gripper 4 and the right gripper 5 can be detached from the turntable 3, allowing the clamping assembly to be removed from the turntable 3 for replacement. Furthermore, by pulling upward on the mounting posts 7 located on the mounting ends of the left gripper 4 and the right gripper 5 respectively, the magnetic block 11 is moved until it disengages from the mounting hole 12 on the mounting end of the left gripper 4 or the right gripper 5. Pulling upward on the mounting posts 7 located on the mounting ends of the left gripper 4 and the right gripper 5 can move the tension spring 8, allowing the tension spring 8 to be detached from the mounting ends of the left gripper 4 and the right gripper 5 respectively for replacement, enabling the tension spring 8 to be replaced individually.

[0021] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A changing mechanism for an electrical discharge machine, comprising an electrical discharge head (1) and a base (2), characterized in that: It also includes a horizontally arranged turntable (3), which is connected to the top of the base (2) by a motor. Multiple clamping components for holding the electrical discharge machining head (1) are installed on the turntable (3), and the multiple clamping components are arranged in a ring array along the circumference of the turntable (3).

2. The replacement mechanism for an EDM machine according to claim 1, characterized in that: The clamping assembly includes a left jaw (4), a right jaw (5), and a stop post (6). The left jaw (4) and the right jaw (5) are rotatably connected to the top of the turntable (3). The stop post (6) is set on the turntable (3) between the left jaw (4) and the right jaw (5) to separate the left jaw (4) and the right jaw (5). After the left jaw (4) and the right jaw (5) rotate, the clamping end of the left jaw (4) and the clamping end of the right jaw (5) move closer to each other or further away from each other. The mounting end of the left jaw (4) and the mounting end of the right jaw (5) are both provided with mounting posts (7). A tension spring (8) is connected between the two mounting posts (7). The tension spring (8) is located directly above the stop post (6).

3. The replacement mechanism for an EDM machine according to claim 2, characterized in that: The mounting ends of the left jaw (4) and the right jaw (5) are rotatably connected to the turntable (3), and a mounting groove (9) for clamping the EDM head (1) is formed between the clamping end of the left jaw (4) and the clamping end of the right jaw (5).

4. The replacement mechanism for an EDM machine according to claim 3, characterized in that: The mounting ends of the left jaw (4) and the right jaw (5) are both rotatably connected to the turntable (3) via a mounting shaft (10). The mounting shaft (10) includes a threaded section (101) threadedly connected to the turntable (3), a rotating shaft section (102) rotatably connected to the mounting end of the left jaw (4) or the right jaw (5), and a mounting head (103) located at the end of the rotating shaft section (102) away from the threaded section (101). (103) Abuts against the mounting end of the left jaw (4) or the mounting end of the right jaw (5). The threaded section (101), the rotating section (102) and the mounting head (103) of the mounting shaft (10) are integrally formed. The mounting post (7) on the left jaw (4) is located between the mounting shaft (10) and the clamping end of the left jaw (4). The mounting post (7) on the right jaw (5) is located between the mounting shaft (10) and the clamping end of the right jaw (5).

5. A replacement mechanism for an EDM machine according to claim 2, characterized in that: The bottom of the mounting post (7) is fixedly connected to a magnetic block (11). The mounting ends of the left jaw (4) and the right jaw (5) are both provided with mounting holes (12) corresponding to the mounting post (7). The left jaw (4) and the right jaw (5) are both made of ferromagnetic metal. The mounting post (7) is fixed in the corresponding mounting hole (12) by the magnetic force of the magnetic block (11).

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