A reciprocating arc erosion mechanism

Abstract

This invention relates to the field of arc erosion technology, specifically a reciprocating arc erosion mechanism. It includes a brass block mounted on a first bakelite board, a sample placed on the brass block, and a copper component positioned above the sample. The brass block is connected to the positive terminal of a power supply via a first wire, and the copper component is connected to the negative terminal via a third wire. When the copper component contacts the sample, a closed circuit is formed. This invention allows for the systematic evaluation of the performance of different materials under arc erosion through arc erosion testing, thereby selecting more stable and arc-erosion-resistant materials and ensuring high performance and long lifespan for equipment.

Description

Technical Field

[0001] This invention relates to the field of arc erosion technology, and in particular to a reciprocating arc erosion mechanism. Background Technology

[0002] Arc erosion is the result of an electric arc acting on a material surface. Its effects are multifaceted, including changes in microstructure (such as altering the surface morphology), degradation of mechanical properties (such as accelerating creep and plastic deformation), deterioration of electrical contact properties (such as increased contact resistance), material loss, and functional degradation. These effects significantly reduce material performance and service life. Therefore, inventing a reciprocating arc erosion mechanism to conduct arc erosion experiments, analyze the principles of arc erosion, and is crucial for selecting more stable and resistant materials. Summary of the Invention

[0003] The purpose of this invention is to provide a reciprocating arc erosion mechanism capable of conducting arc erosion experiments.

[0004] The technical solution of the present invention:

[0005] A reciprocating arc erosion mechanism includes a brass block mounted on a first bakelite board, a sample mounted on the brass block, and a copper component mounted above the sample. The brass block is connected to the positive terminal of a power supply via a first wire, and the copper component is connected to the negative terminal of a power supply via a third wire. When the copper component comes into contact with the sample, a closed circuit is formed.

[0006] Furthermore, the sample is mounted on the brass block via a clamping assembly, which includes a left clamp and a right clamp. The left clamp includes a fixing block, a clamping block, and a first screw. The top surface of the fixing block is a first inclined surface, and the bottom surface of the clamping block is a second inclined surface that mates with the top surface of the fixing block. The top surface of the brass block has multiple rows of first threaded holes that mate with the first screw. The top surface of the fixing block has a first through hole, and the top surface of the clamping block has a straight slot. The first screw passes through the straight slot and the first through hole in sequence and is screwed into the first threaded hole. The right clamp is symmetrically arranged with the left clamp and has the same structure.

[0007] Furthermore, the first inclined surface has a limiting strip, and the second inclined surface has a limiting groove that cooperates with the limiting strip.

[0008] Furthermore, it also includes a U-shaped bakelite board, the bottom of which is fixed with spring plates; the copper part is set on a pin clamp, the top left and right ends of which are respectively fixed to two spring plates.

[0009] Furthermore, the pin clamp has a mounting hole, and the copper part is disposed in the mounting hole via a bushing; the fixed end of the pin clamp is connected to the movable end of the pin clamp via a second screw, so as to facilitate clamping the bushing and the copper part in the mounting hole.

[0010] Furthermore, the first wire is fixed to the brass block by a fourth screw; the third wire is fixed to the copper piece by a fixing ring.

[0011] Furthermore, the first bakelite board has a placement groove for accommodating the brass block, the placement groove has a plurality of third threaded holes, the brass block has a third through hole, and a third screw that mates with the third threaded hole is disposed in the third through hole.

[0012] Furthermore, the depth of the placement groove is less than the thickness of the brass block.

[0013] Furthermore, the first bakelite board is mounted on a sliding plate via a base, the sliding plate is sleeved on a slide rail, and the slide rail is fixed on a cylindrical base; the sliding plate is driven by a cylinder.

[0014] Furthermore, a second wire is also provided on the brass block.

[0015] The beneficial effects of this invention are:

[0016] (1) The clamping assembly can clamp and fix the sample on the brass block, and can also shift the sample. Since the size of the sample area is uncertain, the arc erosion experiment can be carried out in different areas of the sample by moving the sample.

[0017] (2) When the copper part comes into contact with the sample during its descent, the spring sheet will bend to provide a buffer and prevent damage to the copper part's contact.

[0018] This invention uses an arc erosion mechanism to conduct arc erosion tests, which can systematically evaluate the performance of different materials under the action of an electric arc, thereby selecting more stable and more resistant to arc erosion, and ensuring the high performance and long life of the equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the cylindrical base.

[0021] Figure 3 This is a schematic diagram of the structure of the first bakelite board.

[0022] Figure 4 yes Figure 3 An explosion diagram.

[0023] Figure 5 This is a schematic diagram of the brass block.

[0024] Figure 6 This is a schematic diagram of the structure of a U-shaped bakelite board.

[0025] Figure 7 yes Figure 6 An explosion diagram.

[0026] Figure 8 This is a schematic diagram of the pin clamp. Detailed Implementation

[0027] The invention will now be further described with reference to the accompanying drawings.

[0028] like Figures 1-8 As shown, the present invention provides a first embodiment of a reciprocating arc erosion mechanism, including a brass block 8 disposed on a first bakelite board 7, a sample 11 disposed on the brass block 8, and a copper component 16 disposed above the sample 11; the brass block 8 is connected to the positive terminal of a power supply via a first wire 9, and the copper component 16 is connected to the negative terminal of a power supply via a third wire 22; when the copper component 16 comes into contact with the sample 11, a closed circuit is formed, and arc erosion occurs.

[0029] The sample 11 is set on the brass block 8 by a clamping assembly. The clamping assembly can clamp and fix the sample 11 on the brass block 8, and can also shift the sample 11. Since the area size of the sample 11 is uncertain, by moving the sample 11, arc erosion experiments can be carried out in different areas of the sample 11.

[0030] The clamping assembly includes a left clamp and a right clamp. The left clamp includes a fixing block 12, a clamping block 13, and a first screw. The top surface of the fixing block 12 is a first inclined surface, and the bottom surface of the clamping block 13 is a second inclined surface that mates with the top surface of the fixing block 12. The top surface of the brass block 8 has multiple rows of first threaded holes 33 that mate with the first screw. All clamping assemblies can mate with these holes, allowing for the clamping of samples 11 of different sizes. This provides strong adjustability, versatility, and flexibility. The top surface of the fixing block 12 has a first through hole 35, and the top surface of the clamping block 13 has a straight groove 36. The first screw passes through the straight groove 36 and the first through hole 35 in sequence and is screwed into the first threaded hole 33. The right clamp is symmetrically arranged with the left clamp and has the same structure.

[0031] In actual operation, at the initial stage, the first screw connects the straight slot 36 of the clamping block 13, the first through hole 35 of the fixing block 12, and the first threaded hole 33 of the brass block 8, so that the clamping block 13 and the fixing block 12 fit together perfectly. The first screw contacts the end face of the clamping block 13, and then rotating the first screw will give the clamping block 13 a rotational torque. The rotational torque will cause the clamping block 13 to shift. Because the side of the sample 11 contacts the side of the clamping block 13, the sample 11 shifts. When the sample 11 moves to the appropriate position, the right clamp is also fixed with the first screw, thus realizing the shift of the sample 11.

[0032] Based on the first embodiment, the present invention provides a second embodiment of a reciprocating arc erosion mechanism, wherein the first inclined surface has a limiting strip 32 and the second inclined surface has a limiting groove that cooperates with the limiting strip 32. The limiting strip 32 and the limiting groove cooperate to guide the clamping block 13 when it is offset.

[0033] Based on any of the above embodiments, the present invention provides a third embodiment of a reciprocating arc erosion mechanism, which further includes a U-shaped bakelite board 21, wherein spring plates 19 are fixed to the bottom of both vertical plates of the U-shaped bakelite board 21; the copper component 16 is mounted on a pin clamp 17, the top left and right ends of the pin clamp 17 being fixed to the two spring plates 19 respectively. When the copper component 16 contacts the sample 11 during its descent, the spring plates 19 bend to provide a buffering effect and prevent damage to the contacts of the copper component 16. The U-shaped bakelite board 21 is raised and lowered by an existing telescopic device, which can be a hydraulic cylinder, but is not limited to this.

[0034] In this embodiment, the spring sheet 19 can be connected to the U-shaped bakelite board 21 via a fifth bolt. Both the spring sheet 19 and the U-shaped bakelite board 21 have fifth threaded holes 42 that mate with the fifth bolt, facilitating the assembly and disassembly of the spring sheet 19. The pin clamp 17 can be connected to the spring sheet 19 via a sixth bolt. Both the pin clamp 17 and the spring sheet 19 have sixth threaded holes 43 that mate with the sixth bolt, facilitating the assembly and disassembly of the pin clamp 17.

[0035] Based on the third embodiment, the present invention provides a fourth embodiment of a reciprocating arc erosion mechanism. The pin clamp 17 has a mounting hole, and the copper part 16 is disposed within the mounting hole via a bushing 18. The fixed end of the pin clamp 17 is connected to the movable end of the pin clamp 17 via a second screw 38 to facilitate clamping the bushing 18 and the copper part 16 within the mounting hole. The movable end of the pin clamp 17 has a second nut 39 that mates with the second screw 38. During the tightening process of the second screw 38, the pin clamp 17 deforms and compresses the bushing 18 to fix the copper part 16, while the bushing 18 acts as a buffer to prevent the copper part 16 from being deformed by compression.

[0036] Based on any of the above embodiments, the present invention provides a fifth embodiment of a reciprocating arc erosion mechanism, wherein the first wire 9 is fixed on the brass block 8 by the fourth screw 34 to facilitate the installation and removal of the first wire 9; and the third wire 22 is fixed on the copper part 16 by the fixing ring 40 for fixing the third wire 22.

[0037] Based on any of the above embodiments, the present invention provides a sixth embodiment of a reciprocating arc erosion mechanism. The first bakelite board 7 has a placement groove for accommodating a brass block 8. The placement groove has a plurality of third threaded holes 30. The brass block 8 has a third through hole 31. The third through hole 31 is a countersunk hole to facilitate the placement of a third screw. A third screw that mates with the third threaded hole 30 is provided in the third through hole 31. The third screw facilitates the assembly and disassembly of the brass block 8.

[0038] Based on the sixth embodiment, the present invention provides a seventh embodiment of a reciprocating arc erosion mechanism, wherein the depth of the placement groove is less than the thickness of the brass block 8, ensuring that the sample 11 can be energized. If the brass block 8 is flush with the bakelite board, and the sample 11 is too large and comes into contact with the bakelite board, it is possible that the sample 11 will not be able to conduct electricity.

[0039] Based on any of the above embodiments, the present invention provides an eighth embodiment of a reciprocating arc erosion mechanism. The first bakelite board 7 is mounted on a sliding plate 3 via a base 4. The sliding plate 3 is sleeved on a slide rail 2, which is fixed to a cylindrical base 1. The sliding plate 3 is driven by a cylinder 5. By moving the sliding plate 3 via the cylinder 5, the sample 11 maintains reciprocating movement during the experiment, simulating fretting wear experimental conditions.

[0040] In this embodiment, the first bakelite board 7 can be connected to the base 4 via a seventh bolt. The first bakelite board 7 has a seventh through hole 29, which is a countersunk hole to facilitate the placement of the seventh bolt. The base 4 has a seventh threaded hole 28 that mates with the seventh bolt, facilitating the assembly and disassembly of the first bakelite board 7. The base 4 can be connected to the sliding plate 3 via an eighth bolt. The base 4 has an eighth through hole 27, which is a countersunk hole to facilitate the placement of the eighth bolt. The sliding plate 3 has an eighth threaded hole that mates with the eighth bolt, facilitating the assembly and disassembly of the base 4.

[0041] Based on any of the above embodiments, the present invention provides a ninth embodiment of a reciprocating arc erosion mechanism, wherein the brass block 8 is further provided with a second conductor 10, which can serve as a backup conductor when the first conductor 9 is damaged, and can also be used to shunt current to prevent excessive current and heat generation when a single conductor is conducting electricity.

[0042] The above description is only a preferred embodiment of the present invention and should not be construed as a limitation of this application. All equivalent changes and modifications made in accordance with the scope of the patent application of the present invention should be covered by the present invention.

Claims

1. A reciprocating arc erosion mechanism, characterized in that, The device includes a brass block mounted on a first bakelite board, a sample mounted on the brass block, and a copper component mounted above the sample. The brass block is connected to the positive terminal of a power supply via a first wire, and the copper component is connected to the negative terminal of a power supply via a third wire. When the copper component comes into contact with the sample, a closed circuit is formed. The sample is held on a brass block by a clamping assembly, which includes a left clamp and a right clamp. The left clamp includes a fixing block, a clamping block, and a first screw. The top surface of the fixing block is a first inclined surface, and the bottom surface of the clamping block is a second inclined surface that mates with the top surface of the fixing block. The top surface of the brass block has multiple rows of first threaded holes that mate with the first screw. The top surface of the fixing block has a first through hole, and the top surface of the clamping block has a straight slot. The first screw passes through the straight slot and the first through hole in sequence and is screwed into the first threaded hole. The right clamp is symmetrically arranged and has the same structure as the left clamp. The first inclined surface has a limiting strip, and the second inclined surface has a limiting groove that cooperates with the limiting strip; The clamping assembly can hold and fix the sample on the brass block, and can also offset the sample to perform arc erosion experiments in different areas of the sample.

2. The reciprocating arc erosion mechanism according to claim 1, characterized in that, It also includes a U-shaped bakelite board, the bottom of which is fixed with spring plates; the copper part is set on a pin clamp, the top left and right ends of which are respectively fixed to two spring plates.

3. The reciprocating arc erosion mechanism according to claim 2, characterized in that, The pin clamp has a mounting hole, and the copper part is set in the mounting hole via a bushing; the fixed end of the pin clamp is connected to the movable end of the pin clamp via a second screw to facilitate clamping the bushing and the copper part in the mounting hole.

4. The reciprocating arc erosion mechanism according to claim 1, characterized in that, The first wire is fixed to the brass block by a fourth screw; the third wire is fixed to the copper part by a fixing ring.

5. The reciprocating arc erosion mechanism according to claim 1, characterized in that, The first bakelite board has a slot for accommodating a brass block. The slot has multiple third threaded holes. The brass block has a third through hole, and a third screw that mates with the third threaded hole is installed in the third through hole.

6. The reciprocating arc erosion mechanism according to claim 5, characterized in that, The depth of the placement groove is less than the thickness of the brass block.

7. The reciprocating arc erosion mechanism according to claim 1, characterized in that, The first bakelite board is mounted on a sliding plate via a base, the sliding plate is sleeved on a slide rail, and the slide rail is fixed on a cylindrical base; the sliding plate is driven by a cylinder.

8. The reciprocating arc erosion mechanism according to claim 1, characterized in that, A second wire is also provided on the brass block.

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