An electric spark deposition gun with an adjustable structure

Abstract

This invention belongs to the field of electrical discharge deposition (EDD) guns, specifically an EDD gun with an adjustable structure. It includes a deposition gun body, a protective gas nozzle fixedly connected to the left side of the body, a conductive column inside the protective gas nozzle, an electrode on the left side of the conductive column, and an adjusting mechanism between the electrode and the conductive column. The adjusting mechanism includes an extension column rotatably connected to the right side of the electrode and inserted into a receiving slot on the left side of the conductive column. Both ends of the extension column away from the electrode have connecting components, and length adjusting components are provided on both the front and rear sides of the extension column away from the electrode. A flow control component is provided between the outer side of the conductive column and the inner wall of the protective gas nozzle. Through the structural design of the length adjusting components, the function of adjusting the electrode length is achieved.

Description

Technical Field

[0001] This invention relates to the field of electric spark deposition guns, specifically an electric spark deposition gun with an adjustable structure. Background Technology

[0002] An electrical discharge deposition gun is a device used to perform electrical discharge deposition repair processes. It is mainly used to strengthen or precisely repair the surface of plastic molds. It has the advantages of minimal damage to the substrate, flexible operation, and simple process.

[0003] Most existing electrical discharge deposition (EDD) guns consist of an electrode, a nozzle, and a gun body. During the EDD process, when the electrode of the EDD gun approaches and contacts the metal workpiece, a high-frequency electrical spark discharge is generated in the tiny area where the electrode and the workpiece are in contact. This ionizes the air (or argon) between the electrode and the workpiece substrate, creating plasma. As a result, a plasma discharge channel is generated between the electrode and the workpiece, forming a micro-plasma arc. This plasma arc melts the tiny area of ​​the electrode tip and the substrate to form a micro-melt. During the subsequent cooling process, the molten metal solidifies to form a coating, thereby achieving the effect of repairing the surface of the mold or workpiece.

[0004] Most existing electrical discharge deposition (EDD) guns cannot control the length of the electrode and the amount of protective gas ejected. When performing EDD processes on some deep and narrow gaps, the electrode length may be insufficient. The amount of protective gas required varies when working on different workpieces, and too much or too little protective gas will affect the accuracy of the operation. Therefore, an EDD gun with an adjustable structure is proposed to address the above problems. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, most existing electrical discharge deposition guns cannot control the length of the electrode and the amount of protective gas ejected. When performing electrical discharge deposition on some deep and narrow gaps, the electrode length may be insufficient. The amount of protective gas required varies when working on different workpieces, and too much or too little protective gas will affect the accuracy of the operation. This invention proposes an electrical discharge deposition gun with an adjustable structure.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides an electric spark deposition gun with an adjustable structure, including a deposition gun body, a protective gas nozzle fixedly connected to the left side of the deposition gun body, a conductive column disposed inside the protective gas nozzle, an electrode disposed on the left side of the conductive column, and an adjustment mechanism disposed between the electrode and the conductive column.

[0007] The adjustment mechanism includes an extension column, which is rotatably connected to the right side of the electrode and inserted into the inside of a receiving slot. The receiving slot is located on the left side of the conductive column. Both ends of the extension column away from the electrode are provided with connecting components. Both the front and rear sides of the extension column away from the electrode are provided with length adjustment components. A flow control component is provided between the outer side of the conductive column and the inner wall of the protective air nozzle.

[0008] Preferably, the connecting component includes a conductive sheet, and the upper and lower ends of the extension column away from the electrode are fixedly connected with conductive sheets. The conductive sheets are tightly fitted to the upper and lower ends of the inner wall of the storage groove, and the conductive sheets are made of copper foil.

[0009] Preferably, the length adjustment component includes a slider, which is fixedly connected to the front and rear sides of the extension column away from the electrode, and the slider is slidably connected inside the slide groove. The slide groove is opened on the front and rear sides inside the receiving groove. A limiting cavity is opened inside the slider, a limiting spring is provided inside the limiting cavity, and one end of a limiting block is sleeved inside the limiting cavity. The end of the limiting block away from the limiting spring is engaged with the limiting groove, and the limiting groove is opened on the inner wall of the slide groove.

[0010] Preferably, the end of the limiting spring near the limiting block is fixedly connected to the limiting block, and the end of the limiting spring away from the limiting block is fixedly connected to the inner wall of the limiting cavity.

[0011] Preferably, movable blocks are fixedly connected to both sides of the left side of the limiting block near the limiting spring, and the movable blocks are slidably connected inside the movable groove, which is opened on the left and right sides of the inner wall of the limiting cavity.

[0012] Preferably, the flow control component includes a baffle plate, which is fixedly connected to the outer side of the conductive column near the center, and the outer side of the baffle plate is fixedly connected to the inner wall of the protective air nozzle. A through hole is provided on the left side of the baffle plate, and a connecting column is fixedly connected to the right side of the baffle plate. A flow-blocking plate and an adjusting plate are sleeved on the outer side of the connecting column. A first push block is fixedly connected to the top of the flow-blocking plate, and the first push block is sleeved inside the first rotating groove, with the top of the first push block extending to the outer side of the first rotating groove. The first rotating groove is located at the top of the baffle plate. A second push block is fixedly connected to the adjusting plate near the top, and the second push block is rotatably connected to the inside of the second rotating groove. The second rotating groove is located near the top of the first rotating groove. A first ventilator and a second ventilator are fixedly connected to the adjusting plate. A fixing ring is fixedly connected to the inner wall of both the flow-blocking plate and the adjusting plate, and the fixing ring is sleeved inside the connecting groove. The connecting groove is located outside the first rotating groove.

[0013] Preferably, the top of both the first push block and the second push block is fixedly connected with an anti-slip pad, the anti-slip pad is made of rubber, and the top of both sets of anti-slip pads is provided with anti-slip texture. The first ventilation grille and the second ventilation grille are each provided with five sets, and the distance between the first ventilation grille and the second ventilation grille in each set is 36 degrees.

[0014] Preferably, a sealing ring is glued to the left side of both the baffle plate and the regulating plate. The sealing ring is made of rubber. The left side of the baffle plate is glued to the sealing ring and fits tightly against the right side of the baffle plate. The sealing ring glued to the left side of the regulating plate fits tightly against the right side of the baffle plate. Both sides of the inner walls of the first and second rotating grooves are glued with a locking block. The locking block is made of rubber and has a semi-circular cross-section.

[0015] The advantages of this invention are:

[0016] 1. This invention achieves the function of adjusting the length of the electrode through the structural design of the length adjustment component, which solves the problem that most existing electrical discharge deposition guns cannot control the length of the electrode, and the electrode length is insufficient when performing electrical discharge deposition on some deep and narrow gaps. This makes it easier to work on deep and narrow gaps.

[0017] 2. This invention, through the structural design of the flow control component, realizes the function of adjusting the amount of protective gas ejected, solving the problem that most existing EDM guns cannot control the amount of protective gas ejected, and the amount of protective gas required varies when operating on different workpieces. Too much or too little protective gas will affect the accuracy of the operation. The invention can adjust the amount of protective gas ejected for different operating conditions. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0020] Figure 2 This is a partial frontal cross-sectional three-dimensional structural schematic diagram of the present invention;

[0021] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle;

[0022] Figure 4 For the present invention Figure 2 Enlarged structural diagram at point B;

[0023] Figure 5 This is a partial top-view cross-sectional three-dimensional structural schematic diagram of the present invention;

[0024] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point C;

[0025] Figure 7 This is a schematic diagram of the partial explosion structure of the present invention.

[0026] In the diagram: 1. Deposition gun body; 2. Protective gas nozzle; 3. Conductive column; 4. Electrode; 51. Extension column; 52. Receiving groove; 53. Conductive sheet; 54. Slider; 55. Slide groove; 56. Limiting cavity; 57. Limiting spring; 58. Limiting block; 59. Limiting groove; 61. Movable block; 62. Movable groove; 63. Baffle; 64. Through hole; 65. Connecting column; 66. Baffle plate; 67. First push block; 68. First rotating groove; 69. Adjusting plate; 71. First ventilation grille; 72. Second ventilation grille; 73. Second push block; 74. Second rotating groove; 75. Fixing ring; 76. Connecting groove; 77. Sealing ring; 78. Anti-slip pad; 79. Locking block. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1

[0029] Please see Figures 1-7 As shown, an electric spark deposition gun with an adjustable structure includes a deposition gun body 1. A protective gas nozzle 2 is fixedly connected to the left side of the deposition gun body 1. A conductive column 3 is disposed inside the protective gas nozzle 2. An electrode 4 is disposed on the left side of the conductive column 3. An adjustment mechanism is disposed between the electrode 4 and the conductive column 3.

[0030] The adjustment mechanism includes an extension column 51, which is rotatably connected to the right side of the electrode 4 and inserted into the inside of the receiving groove 52. The receiving groove 52 is located on the left side of the conductive column 3. Both ends of the extension column 51 away from the electrode 4 are provided with connecting components. Both the front and rear sides of the extension column 51 away from the electrode 4 are provided with length adjustment components. A flow control component is provided between the outer side of the conductive column 3 and the inner wall of the protective air nozzle 2.

[0031] Furthermore, the connecting component includes a conductive sheet 53. The upper and lower ends of the extension post 51 away from the electrode 4 are fixedly connected with conductive sheets 53. The conductive sheets 53 are tightly attached to the upper and lower ends of the inner wall of the storage groove 52. The conductive sheets 53 are made of copper foil.

[0032] During operation, when the extension column 51 moves, the conductive sheet 53, which is fixedly connected to the extension column 51, moves synchronously inside the receiving groove 52 along with the movement of the extension column 51. The design of the shape of the conductive sheet 53 ensures that the conductive sheet 53 always remains in close contact with the inner wall of the receiving groove 52, so that the current can be conducted to the electrode 4 through the conductive column 3 and the conductive sheet 53.

[0033] Furthermore, the length adjustment component includes a slider 54, which is fixedly connected to the front and rear sides of the end of the extension column 51 away from the electrode 4, and the slider 54 is slidably connected inside the slide groove 55. The slide groove 55 is opened on the front and rear sides inside the storage groove 52. A limiting cavity 56 is opened inside the slider 54. A limiting spring 57 is provided inside the limiting cavity 56, and one end of a limiting block 58 is sleeved inside the limiting cavity 56. The end of the limiting block 58 away from the limiting spring 57 is engaged with a limiting groove 59. The limiting groove 59 is opened on the inner wall of the slide groove 55.

[0034] During operation, most existing electrical discharge deposition (EDD) guns cannot control the electrode length. When performing EDD processes on deep and narrow crevices, the electrode length may be insufficient. To adjust the length of electrode 4, pull or push electrode 4, causing it to move the fixedly connected extension column 51. As the extension column 51 moves, it drives the fixedly connected sliders 54 on both sides to move synchronously within the groove 55. As the sliders 54 move, the limiting blocks 58 fitted inside the limiting cavity 56 move along with them. Squeezed by the inner wall of the slide groove 55, it moves into the limiting cavity 56 and squeezes the limiting spring 57, causing the limiting spring 57 to undergo elastic deformation. When the electrode 4 is adjusted to the specified length, the pulling or pushing of the electrode 4 stops. At this time, the slider 54, which is fixedly connected to the electrode 4, also stops moving synchronously. At this time, the squeezing force of the inner wall of the slide groove 55 on the limiting block 58 disappears. Under the action of the restoring force of the limiting spring 57, the limiting block 58 engages with the limiting groove 59, which has the effect of limiting the slider 54 and the extension column 51, thereby fixing the length of the electrode 4.

[0035] Furthermore, the end of the limiting spring 57 near the limiting block 58 is fixedly connected to the limiting block 58, and the end of the limiting spring 57 away from the limiting block 58 is fixedly connected to the inner wall of the limiting cavity 56.

[0036] During operation, the restoring force of the limit spring 57 enables the limit block 58 to automatically reset after the pressure is removed.

[0037] Furthermore, movable blocks 61 are fixedly connected to both sides of the left side of the limiting block 58 near the limiting spring 57, and the movable blocks 61 are slidably connected inside the movable groove 62, which is opened on the left and right sides of the inner wall of the limiting cavity 56.

[0038] During operation, when the limiting block 58 moves, the movable block 61, which is fixedly connected to the limiting block 58, slides synchronously inside the movable groove 62. The combined action of the movable block 61 and the movable groove 62 reduces the friction between the limiting block 58 and the inner wall of the limiting cavity 56 when the limiting block 58 moves, thus making the limiting block 58 move more smoothly and preventing the limiting block 58 from getting stuck due to excessive friction with the inner wall of the limiting cavity 56.

[0039] Furthermore, the flow control assembly includes a baffle 63, which is fixedly connected to the outer side of the conductive post 3 near the center, and the outer side of the baffle 63 is fixedly connected to the inner wall of the protective air nozzle 2. A through hole 64 is provided on the left side of the baffle 63, and a connecting post 65 is fixedly connected to the right side of the baffle 63. A flow-blocking plate 66 and an adjusting plate 69 are sleeved on the outer side of the connecting post 65. A first push block 67 is fixedly connected to the top of the flow-blocking plate 66. The first push block 67 is sleeved inside the first rotating groove 68, and the top of the first push block 67 extends to the outside of the first rotating groove 68. On the side, the first rotating groove 68 is opened at the top of the baffle 63. The second push block 73 is fixedly connected to the adjusting plate 69 near the top, and the second push block 73 is rotatably connected inside the second rotating groove 74. The second rotating groove 74 is opened near the top of the first rotating groove 68. The first ventilation grille 71 and the second ventilation grille 72 are fixedly connected to the adjusting plate 69. The flow-blocking plate 66 and the inner wall of the adjusting plate 69 are both fixedly connected to the fixing ring 75, and the fixing ring 75 is sleeved inside the connecting groove 76. The connecting groove 76 is opened on the outside of the first rotating groove 68.

[0040] During operation, when the flow rate of the protective gas needs to be adjusted, push the first push block 67 or the second push block 73 to its limit. When the first push block 67 and the second push block 73 move inside the first rotating groove 68 and the second rotating groove 74, they both squeeze the locking block 79 glued to the inner wall of the first rotating groove 68 and the second rotating groove 74, causing the locking block 79 to undergo elastic deformation. When the first push block 67 and the second push block 73 move to their limit, the squeezing force of the first push block 67 and the second push block 73 on the locking block 79 disappears. At this time, the locking block 79 returns to its original position under its own restoring force, which has the effect of limiting the first push block 67 and the second push block 73, preventing the flow baffle 66 and the adjusting plate 69 from shaking.

[0041] Furthermore, the top of the first push block 67 and the second push block 73 are both fixedly connected with anti-slip pads 78, which are made of rubber. The top of both sets of anti-slip pads 78 are provided with anti-slip textures. The first ventilation grille 71 and the second ventilation grille 72 are each provided with five sets, and the distance between each set of the first ventilation grille 71 and the second ventilation grille 72 is thirty-six degrees.

[0042] During operation, most existing EDM guns cannot control the amount of protective gas injected. The required amount of protective gas varies depending on the workpiece being processed; too much or too little protective gas will affect the accuracy of the operation. By pushing the second push block 73 to rotate the adjusting plate 69, the positions of the first vent grille 71 and the second vent grille 72, fixedly mounted on the adjusting plate 69, can be adjusted. This controls the alignment of the first vent grille 71 or the second vent grille 72 with the through hole 64. When the first vent grille 71... When the first vent grille 71 is matched with the through hole 64, less protective air can pass through due to the fewer holes. When the second vent grille 72 is matched with the through hole 64, more protective air can pass through, thus controlling the amount of protective air passing through in two different ways. By pushing the first push block 67, the flow deflector 66 is rotated, controlling whether the holes on the flow deflector 66 correspond to the through hole 64. When the holes on the flow deflector 66 correspond to the through hole 64, the protective air passing through the first vent grille 71 or the second vent grille 72... Gas flows directly through the holes and through-holes 64 on the baffle plate 66 without obstruction. When the positions of the holes on the baffle plate 66 do not correspond to the through-holes 64, the gas passing through the first ventilator 71 or the second ventilator 72 will be blocked by the baffle plate 66, reducing the flow rate. By controlling whether the positions of the holes on the baffle plate 66 correspond to the through-holes 64, the amount of protective gas ejected can be further adjusted. A total of four levels are formed to control the amount of protective gas ejected. The first push block 67 and the top of the second push block 73 are fixedly connected. The anti-slip pad 78 and the anti-slip texture on the top of the anti-slip pad 78 increase the friction and prevent slippage due to insufficient friction when pushing the first push block 67 and the second push block 73. When the baffle plate 66 and the adjusting plate 69 rotate, the fixing ring 75, which is fixedly connected to the baffle plate 66 and the adjusting plate 69, rotates synchronously inside the connecting groove 76. The combined action of the fixing ring 75 and the connecting groove 76 limits the displacement of the baffle plate 66, so that the baffle plate 66 and the adjusting plate 69 can only rotate.

[0043] Furthermore, sealing rings 77 are glued to the left side of both the flow deflector 66 and the adjusting plate 69. The sealing rings 77 are made of rubber. The left side of the flow deflector 66 is glued to the sealing ring 77 and fits tightly against the right side of the baffle 63. The sealing ring 77 glued to the left side of the adjusting plate 69 fits tightly against the right side of the flow deflector 66. Both sides of the inner walls of the first rotating groove 68 and the second rotating groove 74 are glued with locking blocks 79. The locking blocks 79 are made of rubber and have a semi-circular cross-section.

[0044] During operation, the sealing ring 77 seals the gaps between the baffle plate 66 and the regulating plate 69, as well as the gaps between the baffle plate 66 and the baffle 63, preventing protective gas from passing through the gaps.

[0045] Working principle: Most existing electrical discharge deposition (EDD) guns cannot control the length of the electrode. When performing EDD processes on some deep and narrow crevices, the electrode length may be insufficient. When adjusting the length of electrode 4, pulling or pushing electrode 4 causes electrode 4 to move the fixedly connected extension column 51. When the extension column 51 moves, it drives the sliders 54 fixedly connected on both sides to move synchronously inside the slide groove 55. When the sliders 54 move, the limiting blocks 58 sleeved inside the limiting cavity 56 move along with the sliders 54. The electrode 4 is squeezed by the inner wall of the slide groove 55, moves into the limiting cavity 56 and squeezes the limiting spring 57, causing the limiting spring 57 to undergo elastic deformation. When the electrode 4 is adjusted to the specified length, the pulling or pushing of the electrode 4 stops. At this time, the slider 54, which is fixedly connected to the electrode 4, also stops moving synchronously. At this time, the squeezing force of the inner wall of the slide groove 55 on the limiting block 58 disappears. Under the action of the restoring force of the limiting spring 57, the limiting block 58 engages with the limiting groove 59, which has the effect of limiting the slider 54 and the extension column 51, thereby fixing the length of the electrode 4.

[0046] When the limiting block 58 moves, the movable block 61, which is fixedly connected to the limiting block 58, slides synchronously inside the movable groove 62. The combined action of the movable block 61 and the movable groove 62 reduces the friction between the limiting block 58 and the inner wall of the limiting cavity 56 when the limiting block 58 moves, thus making the limiting block 58 move more smoothly and preventing the limiting block 58 from getting stuck due to excessive friction with the inner wall of the limiting cavity 56.

[0047] When the extension post 51 moves, the conductive sheet 53, which is fixedly connected to the extension post 51, moves synchronously inside the receiving groove 52 along with the extension post 51. The design of the shape of the conductive sheet 53 ensures that the conductive sheet 53 always remains in close contact with the inner wall of the receiving groove 52, so that the current can be conducted to the electrode 4 through the conductive post 3 and the conductive sheet 53.

[0048] When adjusting the flow rate of the protective gas, push the first push block 67 or the second push block 73 to its limit. When the first push block 67 and the second push block 73 move inside the first rotating groove 68 and the second rotating groove 74, they both squeeze the locking block 79 glued to the inner wall of the first rotating groove 68 and the second rotating groove 74, causing the locking block 79 to undergo elastic deformation. When the first push block 67 and the second push block 73 move to their limit, the squeezing force of the first push block 67 and the second push block 73 on the locking block 79 disappears. At this time, the locking block 79 returns to its original position under its own restoring force, which has the effect of limiting the first push block 67 and the second push block 73, preventing the flow baffle 66 and the adjusting plate 69 from shaking.

[0049] Most existing electrical discharge machining (EDM) guns cannot control the amount of protective gas emitted. The required amount of protective gas varies depending on the workpiece being processed; too much or too little protective gas will affect the accuracy of the operation. By pushing the second pusher 73 to rotate the adjusting plate 69, the positions of the first and second vent grilles 71 and 72, fixedly mounted on the adjusting plate 69, can be adjusted. This controls the alignment of the first or second vent grille 71 with the through hole 64. When the first vent grille 71 is aligned with the through hole 64, less protective gas can pass through due to the smaller number of holes. When the second vent grille 72 is aligned with the through hole 64, more protective gas can pass through, creating two different settings for the protective gas flow. Excessive flow is controlled by pushing the first pusher 67 to rotate the baffle plate 66, controlling whether the holes on the baffle plate 66 correspond to the through holes 64. When the holes on the baffle plate 66 correspond to the through holes 64, the protective gas passing through the first ventilation grille 71 or the second ventilation grille 72 passes directly through the holes on the baffle plate 66 and the through holes 64 without obstruction. When the holes on the baffle plate 66 do not correspond to the through holes 64, the gas passing through the first ventilation grille 71 or the second ventilation grille 72 will be blocked by the baffle plate 66, reducing the flow rate. By controlling whether the holes on the baffle plate 66 correspond to the through holes 64, the amount of protective gas ejected can be further adjusted, forming a total of four levels to control the amount of protective gas ejected.

[0050] When the baffle plate 66 and the regulating plate 69 rotate, the fixing ring 75, which is fixedly connected to the baffle plate 66 and the regulating plate 69, rotates synchronously inside the connecting groove 76. The combined action of the fixing ring 75 and the connecting groove 76 limits the displacement of the baffle plate 66, so that the baffle plate 66 and the regulating plate 69 can only rotate.

[0051] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. An electric spark deposition gun with an adjustable structure, comprising a deposition gun body (1), wherein a protective gas nozzle (2) is fixedly connected to the left side of the deposition gun body (1), a conductive column (3) is disposed inside the protective gas nozzle (2), and an electrode (4) is disposed on the left side of the conductive column (3), characterized in that: An adjustment mechanism is provided between the electrode (4) and the conductive post (3); The adjustment mechanism includes an extension column (51), which is rotatably connected to the right side of the electrode (4) and is inserted into the inside of the storage groove (52). The storage groove (52) is opened on the left side of the conductive column (3). Both ends of the extension column (51) away from the electrode (4) are provided with communication components. Both the front and rear sides of the extension column (51) away from the electrode (4) are provided with length adjustment components. A flow control component is provided between the outer side of the conductive column (3) and the inner wall of the protective gas nozzle (2). The flow control assembly includes a baffle (63), which is fixedly connected to the outer side of the conductive post (3) near the center. The outer side of the baffle (63) is fixedly connected to the inner wall of the protective gas nozzle (2). A through hole (64) is provided on the left side of the baffle (63), and a connecting post (65) is fixedly connected to the right side of the baffle (63). A flow baffle (66) and an adjusting plate (69) are sleeved on the outer side of the connecting post (65). A first push block (67) is fixedly connected to the top of the flow baffle (66). The first push block (67) is sleeved inside the first rotating groove (68), and the top of the first push block (67) extends to the outer side of the first rotating groove (68). The first rotating groove (68) is opened at the top of the baffle (63). The second push block (73) is fixedly connected to the adjusting plate (69) near the top. The second push block (73) is rotatably connected inside the second rotating groove (74). The second rotating groove (74) is opened at the top of the first rotating groove (68). The first ventilation grille (71) and the second ventilation grille (72) are fixedly connected to the adjusting plate (69). The inner walls of the flow baffle (66) and the adjusting plate (69) are both fixedly connected to the fixing ring (75). The fixing ring (75) is sleeved inside the connecting groove (76). The connecting groove (76) is opened on the outside of the first rotating groove (68).

2. The electric spark deposition gun with an adjustable structure according to claim 1, characterized in that: The connecting component includes a conductive sheet (53). The upper and lower ends of the extension column (51) away from the electrode (4) are fixedly connected with conductive sheets (53). The conductive sheets (53) are tightly attached to the upper and lower ends of the inner wall of the storage groove (52). The conductive sheets (53) are made of copper foil.

3. The electric spark deposition gun with an adjustable structure according to claim 2, characterized in that: The length adjustment assembly includes a slider (54), which is fixedly connected to the front and rear sides of the end of the extension column (51) away from the electrode (4), and the slider (54) is slidably connected inside the slide groove (55). The slide groove (55) is opened on the front and rear sides inside the storage groove (52). A limiting cavity (56) is opened inside the slider (54). A limiting spring (57) is provided inside the limiting cavity (56), and one end of a limiting block (58) is sleeved inside the limiting cavity (56). The end of the limiting block (58) away from the limiting spring (57) is engaged with a limiting groove (59). The limiting groove (59) is opened on the inner wall of the slide groove (55).

4. The electric spark deposition gun with an adjustable structure according to claim 3, characterized in that: The end of the limiting spring (57) near the limiting block (58) is fixedly connected to the limiting block (58), and the end of the limiting spring (57) away from the limiting block (58) is fixedly connected to the inner wall of the limiting cavity (56).

5. The electric spark deposition gun with an adjustable structure according to claim 4, characterized in that: The limiting block (58) has movable blocks (61) fixedly connected to both sides of the left side of the end near the limiting spring (57), and the movable blocks (61) are slidably connected inside the movable groove (62), which is opened on the left and right sides of the inner wall of the limiting cavity (56).

6. The electric spark deposition gun with an adjustable structure according to claim 1, characterized in that: The top of the first push block (67) and the second push block (73) are fixedly connected with anti-slip pads (78). The anti-slip pads (78) are made of rubber, and the top of both sets of anti-slip pads (78) are provided with anti-slip patterns. The first ventilation grille (71) and the second ventilation grille (72) are each provided with five sets, and the distance between each set of the first ventilation grille (71) and the second ventilation grille (72) is thirty-six degrees.

7. The electric spark deposition gun with an adjustable structure according to claim 1, characterized in that: The left side of both the baffle plate (66) and the regulating plate (69) is glued with a sealing ring (77), which is made of rubber. The left side of the baffle plate (66) is glued to the sealing ring (77) and the right side of the baffle plate (63) in close contact. The left side of the regulating plate (69) is glued with the sealing ring (77) and the right side of the baffle plate (66) in close contact. Both sides of the inner walls of the first rotating groove (68) and the second rotating groove (74) are glued with a locking block (79), which is made of rubber and has a semi-circular cross-section.

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