Plasma arc welding machine for machining mechanical parts

Abstract

The invention relates to the technical field of plasma arc welding equipment, in particular to a plasma arc welding machine for machining mechanical parts, which comprises a rack, a welding mechanism is mounted on the rack, the welding mechanism comprises a placing table, a supporting mechanism is mounted on the placing table, an adjusting mechanism is mounted on the supporting mechanism, and the adjusting mechanism is mounted on the placing table. A cleaning mechanism and a dust collection mechanism are mounted on the welding mechanism; part welding work is facilitated through the welding mechanism, the parts can be welded at different angles, the parts of different shapes can be conveniently placed through installation of the supporting mechanism, the parts can be stably clamped after being placed through cooperation of an adjusting mechanism and a limiting mechanism, and the parts can be conveniently cleaned through installation of a cleaning mechanism and a dust collection mechanism. And through work of the welding mechanism, driving of the control mechanism is achieved, the control mechanism is facilitated to drive the dust collection mechanism to work during work, and operation is more convenient, rapid and efficient.

Description

Technical Field

[0001] The present invention relates to the technical field of plasma arc welding equipment, and specifically relates to a plasma arc welding machine for machining mechanical parts. Background Art

[0002] Plasma arc welding refers to a fusion welding method that uses a plasma arc with a high energy density beam as the welding heat source. Plasma arc welding has the characteristics of concentrated energy, high productivity, fast welding speed, small stress and deformation, stable arc, and is suitable for welding thin plates and box materials. It is especially suitable for various refractory, easily oxidized, and heat-sensitive metal materials. During the machining of mechanical parts, a plasma arc welding machine is also used for welding.

[0003] Currently, when a plasma arc welding machine fixes parts during welding, most of them are fixed by jigs. The back-and-forth clamping is time-consuming and laborious. Moreover, when fixing irregular parts, special jigs or additional jigs need to be used for auxiliary fixing, which makes the operation more cumbersome. Unstable fixing is likely to cause deviation and affect the welding quality. And when welding parts, the parts are directly fixed and then welded. There will be debris on some parts. If not cleaned up before welding, it is easy to cause false welding, reduce the welding quality, and affect subsequent use. At the same time, the smoke collection device is not convenient to be well connected with the plasma welding torch, resulting in the inconvenience of collecting the smoke generated during welding, and the smoke is easy to cause pollution in the room. Summary of the Invention

[0004] In view of the problems in the prior art, the present invention provides a plasma arc welding machine for machining mechanical parts.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a plasma arc welding machine for machining mechanical parts, including a frame, a welding mechanism is installed on the frame. The welding mechanism includes a placement table, a support mechanism is installed on the placement table, an adjustment mechanism is installed on the support mechanism, and a cleaning mechanism and a dust suction mechanism are installed on the welding mechanism.

[0006] Specifically, the support mechanism includes support columns. Multiple rows of equally spaced support columns are vertically connected to the top of the placement table. Support rods are respectively installed at the tops of the multiple support columns. The bottom of the support rod is slidably connected to the inside of the support column through a compression spring.

[0007] Specifically, the adjustment mechanism includes movable grooves. Multiple rows of equally spaced movable grooves are provided inside the top of the placement table. Bases are respectively slidably connected inside the multiple movable grooves. A plurality of connecting springs are connected between the side wall of the base and the inner side wall of the movable groove. The bottom of the support column is vertically connected to the center of the top of the base.

[0008] Specifically, rubber sleeves are respectively snap-connected to the outer sides of the tops of the plurality of support rods. The diameter of the rubber sleeve is larger than the diameter of the top of the support rod, and the bottom of the support rod is a hexagonal prism structure.

[0009] Specifically, cover plates are respectively snap-connected to the tops of the plurality of movable grooves. Circular guide grooves are provided on the cover plates. The base is slidably connected to the bottom of the cover plate. The bottom of the support column slides inside the guide groove. A dust-proof cover is installed on the outer side of the bottom of the support column. The dust-proof cover is in a funnel shape. The bottom of the dust-proof cover is connected to the outer side of the top of the cover plate. The dust-proof cover is located above the guide groove.

[0010] Specifically, two columns are vertically connected to one end of the top of the frame. An X-axis slide is installed between the tops of the two columns. A Z-axis slide is fitted and connected to the X-axis slide. A first turntable is fitted and connected to the bottom of one side of the Z-axis slide. A plasma welding torch is installed on the first turntable. A Y-axis slide is installed at the midline of the top of the frame. A second turntable is installed on the Y-axis slide. The top of the second turntable is connected to the center of the bottom of the placement table.

[0011] Specifically, a limiting mechanism is installed inside the base. The limiting mechanism includes a driving rod. The driving rod is rotatably connected inside the support rod. Both ends of the driving rod extend to the outside of both ends of the support rod. A pressing block is slidably connected to the inner side of the bottom of the base. The bottom of the pressing block extends to the outside of the base. The top of the pressing block is rotatably connected to a screw rod through a rotating block. The top of the screw rod is a hexagonal prism structure. The bottom of the screw rod is threadedly connected to the inside of the base. The top of the screw rod passes through a compression spring and is slidably connected to the inner side of the bottom of the screw rod. The pressing block is in a hexagonal shape. An anti-slip pad is installed at the bottom of the pressing block. The bottom of the anti-slip pad abuts against the bottom of the movable groove.

[0012] Specifically, the cleaning mechanism includes a fixed sleeve. A fixed sleeve is snap-connected to the outer side of the bottom of the plasma welding torch. The bottom of the fixed sleeve is rotatably connected to a sliding sleeve through a bearing. The sliding sleeve is located on the outer side of the bottom of the plasma welding torch. A wire brush is installed at the bottom of the sliding sleeve. The wire brush is in a funnel shape. The wire brush is located on the outer side of the bottom of the plasma welding torch. A toothed ring is installed at the top of the sliding sleeve. A driving motor is installed on the outer side of the fixed sleeve. A gear is installed on the output shaft of the driving motor. The gear is vertically meshed with the toothed ring.

[0013] Specifically, the dust suction mechanism includes a collecting groove. An annular collecting groove is provided on the inner side of the top of the fixed sleeve. A plurality of vertical diversion grooves are provided on the inner side of the bottom of the fixed sleeve. The bottoms of the plurality of diversion grooves extend into the sliding sleeve. The tops of the plurality of diversion grooves extend into the collecting groove. A connecting pipe is installed on the outer side of the fixed sleeve. One end of the connecting pipe extends into the collecting groove.

[0014] Specifically, a control mechanism is installed on the Z-axis slide table. The control mechanism includes a fixing block. The fixing block is installed on the outer side of the top of the Z-axis slide table. A plug is slidably connected inside the fixing block through a return spring. A pressing rod is installed on the top of the plug. The top of the pressing rod extends to the outside of the fixing block. The pressing rod is slidably connected with the fixing block. Through grooves are provided inside both ends of the fixing block. The opposite ends of the two through grooves respectively extend to the outside of the return spring. A dust suction pipe and a delivery pipe are respectively installed at both ends of the fixing block. One ends of the dust suction pipe and the delivery pipe extend into the through grooves. The other end of the dust suction pipe is connected to a connecting pipe.

[0015] Specifically, a pressing switch is installed at the center inside the fixing block. The pressing switch is electrically connected to the driving motor. The top of the pressing switch extends to the inside of the bottom of the return spring.

[0016] The beneficial effects of the present invention are as follows:

[0017] (1) For the plasma arc welding machine for machining mechanical parts of the present invention, through the cooperative installation of the welding mechanism and the frame, it is beneficial for the welding work of parts, and can rotate the angle of the parts to realize welding at different positions of the parts.

[0018] (2) For the plasma arc welding machine for machining mechanical parts of the present invention, through the installation of the supporting mechanism, it is beneficial for placing parts of different shapes. Through the cooperation of the adjusting mechanism and the limiting mechanism, it is beneficial for the parts to be stably clamped after being placed and will not loosen.

[0019] (3) For the plasma arc welding machine for machining mechanical parts of the present invention, through the installation of the cleaning mechanism and the dust suction mechanism, it is beneficial for pre-grinding and cleaning before welding parts, and for sucking away debris, thereby improving the welding quality.

[0020] (4) For the plasma arc welding machine for machining mechanical parts of the present invention, through the operation of the welding mechanism, it realizes the driving of the control mechanism, which is beneficial for the control mechanism to drive the dust suction mechanism to work during operation, and the operation is more convenient and efficient. Description of the Drawings

[0021] The present invention will be further described below with reference to the drawings and embodiments.

[0022] Figure 1 It is the overall structure schematic diagram provided by the present invention;

[0023] Figure 2 It is the connection structure schematic diagram of the cover plate and the placement table of the present invention;

[0024] Figure 3 It is the connection structure schematic diagram of the second turntable and the placement table of the present invention;

[0025] Figure 4 Schematic diagram of the connection structure between the support column and the cover plate of the present invention;

[0026] Figure 5 Schematic diagram of the connection structure between the support column and the base of the present invention;

[0027] Figure 6 Schematic diagram of the connection structure between the support rod and the support column of the present invention;

[0028] Figure 7 Schematic diagram of the connection structure between the driving rod and the pressing block of the present invention;

[0029] Figure 8 Schematic diagram of the connection structure between the fixed sleeve and the plasma welding torch of the present invention;

[0030] Figure 9 Schematic diagram of the connection structure between the sliding sleeve and the fixed sleeve of the present invention;

[0031] Figure 10 Schematic diagram of the connection structure between the plug and the fixed block of the present invention.

[0032] In the figure: 1, frame; 2, welding mechanism; 201, column; 202, X-axis slide; 203, Z-axis slide; 204, first turntable; 205, plasma welding torch; 206, placement table; 207, Y-axis slide; 208, second turntable; 3, support mechanism; 301, support rod; 302, rubber sleeve; 303, support column; 304, compression spring; 4, adjustment mechanism; 401, cover plate; 402, movable groove; 403, guide groove; 404, dust cover; 405, base; 406, connecting spring; 5, limiting mechanism; 501, driving rod; 502, pressing block; 503, anti-slip pad; 504, rotating block; 505, screw; 6, cleaning mechanism; 601, wire brush; 602, fixed sleeve; 603, sliding sleeve; 604, bearing; 605, toothed ring; 606, gear; 607, driving motor; 7, dust suction mechanism; 701, connecting pipe; 702, collecting groove; 703, diversion groove; 8, control mechanism; 801, fixed block; 802, pressing rod; 803, plug; 804, return spring; 805, dust suction pipe; 806, conveying pipe; 807, through groove; 808, pressing switch. Detailed implementation manners

[0033] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0034] Such as Figure 1 、 Figure 4 、 Figure 5 、 Figure 7 、 Figure 9 AndFigure 8 As shown, a plasma arc welding machine for machining mechanical parts according to the present invention includes a frame 1, a welding mechanism 2 is installed on the frame 1, the welding mechanism 2 includes a placement table 206, a support mechanism 3 is installed on the placement table 206, an adjustment mechanism 4 is installed on the support mechanism 3, and a cleaning mechanism 6 and a dust suction mechanism 7 are installed on the welding mechanism 2.

[0035] Specifically, as Figure 2 , Figure 4 , Figure 5 and Figure 6 shown, the support mechanism 3 includes support columns 303. Multiple rows of equally spaced support columns 303 are vertically connected to the top of the placement table 206. Support rods 301 are respectively installed on the tops of the multiple support columns 303. The bottom of the support rod 301 is slidably connected to the inside of the support column 303 through a compression spring 304. Through the vertical connection of the multiple support columns 303 and the placement table 206, it is beneficial to install the multiple support rods 301. Through the cooperation of the compression spring 304, the support rod 301 and the top of the support column 303 can slide telescopically. When a part is placed on the multiple support columns 303, under the action of gravity, the part presses the support rod 301 to slide down against the elastic force of the compression spring 304. After the part sinks to a certain position, the support rods 301 that do not slide will abut against the outside of the part, playing a role in positioning to prevent the part from swinging.

[0036] Specifically, as Figure 4 and Figure 5 shown, the adjustment mechanism 4 includes movable grooves 402. Multiple rows of equally spaced movable grooves 402 are provided inside the top of the placement table 206. Bases 405 are respectively slidably connected inside the multiple movable grooves 402. A plurality of connecting springs 406 are connected between the side wall of the base 405 and the inner side wall of the movable groove 402. The bottom of the support column 303 is vertically connected to the center of the top of the base 405. Through the opening of the movable groove 402, it is beneficial to install the base 405. With the cooperation of the multiple connecting springs 406, the base 405 is located at the center of the movable groove 402. By pushing the support column 303, it is beneficial to drive the base 405 to slide a certain position against the elastic force of the connecting spring 406, realizing abutting and clamping against the outer side wall of the part, ensuring the stability of the part.

[0037] Specifically, as Figure 4 and Figure 5As shown, rubber sleeves 302 are respectively snap-connected to the outer sides of the tops of the plurality of support rods 301. The diameter of the rubber sleeve 302 is larger than the diameter of the top of the support rod 301. The bottom of the support rod 301 is a hexagonal prism structure. By installing the rubber sleeve 302, it is beneficial to play a role in anti-slip and anti-wear, and the outer side wall of the part is tightly contacted without loosening. Through the design of the hexagonal prism structure of the support rod 301, it is beneficial that the support rod 301 does not rotate when sliding with the support column 303, preventing the part being abutted from shifting.

[0038] Specifically, as Figure 4 and Figure 5 shown, covers 401 are respectively snap-connected to the tops of the plurality of movable grooves 402. Circular guide grooves 403 are provided on the covers 401. The base 405 is slidably connected to the bottom of the cover 401. The bottom of the support column 303 slides inside the guide groove 403. A dust cover 404 is installed on the outer side of the bottom of the support column 303. The dust cover 404 is a funnel-shaped structure. The bottom of the dust cover 404 is connected to the outer side of the top of the cover 401. The dust cover 404 is located at the top of the guide groove 403. By installing the cover 401, it is beneficial to shield and protect the top of the movable groove 402, and enable the base 405 to only slide without tipping over, playing a guiding role. By opening the guide groove 403, it is beneficial for the support column 303 to be able to swing its position, and cooperate with the dust cover 404 to play a dust-proof role, preventing debris from entering the inside of the guide groove 403 and affecting the sliding of the base 405.

[0039] Specifically, as Figure 1As shown in the figure, two columns 201 are vertically connected to one end of the top of the frame 1. An X-axis slide 202 is installed between the tops of the two columns 201. A Z-axis slide 203 is connected in cooperation with the X-axis slide 202. A first turntable 204 is connected in cooperation with the bottom of one side of the Z-axis slide 203. A plasma welding torch 205 is installed on the first turntable 204. A Y-axis slide 207 is installed at the midline of the top of the frame 1. A second turntable 208 is installed on the Y-axis slide 207. The top of the second turntable 208 is connected to the center of the bottom of the placement table 206. Through the installation of the two columns 201, it is beneficial to support and connect the X-axis slide 202. Through the installation of the X-axis slide 202, it is beneficial to connect the Z-axis slide 203. Through the installation of the Z-axis slide 203, it is beneficial to connect the plasma welding torch 205. And through the cooperation of the X-axis slide 202 and the Z-axis slide 203, the plasma welding torch 205 can move in position and height, facilitating the welding of plates. Through the installation of the first turntable 204, the swing angle of the plasma welding torch 205 is realized, facilitating welding at different angles. Through the cooperation of the Y-axis slide 207 and the second turntable 208, the movement and rotation orientation of the placement table 206 are realized, enabling rapid welding of parts at different positions.

[0040] Specifically, such as Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, a limiting mechanism 5 is installed inside the base 405. The limiting mechanism 5 includes a driving rod 501. The driving rod 501 is rotatably connected inside the support rod 301. Both ends of the driving rod 501 extend to the outside of both ends of the support rod 301. A pressing block 502 is slidably connected to the inner side of the bottom of the base 405. The bottom of the pressing block 502 extends to the outside of the base 405. The top of the pressing block 502 is rotatably connected to a screw rod 505 through a rotating block 504. The top of the screw rod 505 is of a hexagonal prism structure. The bottom of the screw rod 505 is threadedly connected to the inside of the base 405. The top of the screw rod 505 penetrates through the compression spring 304 and is slidably connected to the inner side of the bottom of the screw rod 505. The pressing block 502 is of a hexagonal structure. An anti-slip pad 503 is installed at the bottom of the pressing block 502. The bottom of the anti-slip pad 503 abuts against the bottom of the movable groove 402. Through the installation of the driving rod 501, it is beneficial to drive and control the screw rod 505. Then, under the cooperation of the thread, the screw rod 505 squeezes the pressing block 502, so that the pressing block 502 drives the anti-slip pad 503 to abut against and limit the bottom of the movable groove 402, making the base 405 unable to slide, ensuring the stability of the parts. The top of the screw rod 505 is of a hexagonal prism structure. When the driving rod 501 slides along with the support rod 301, the bottom of the driving rod 501 slides on the top of the screw rod 505, and it can also drive and control the screw rod 505, making the operation more convenient and flexible.

[0041] Specifically, as Figure 1 、 Figure 8 and Figure 9 shown, the cleaning mechanism 6 includes a fixed sleeve 602. The fixed sleeve 602 is snap-fitted to the outer side of the bottom of the plasma welding torch 205. The bottom of the fixed sleeve 602 is rotatably connected to a sliding sleeve 603 through a bearing 604. The sliding sleeve 603 is located on the outer side of the bottom of the plasma welding torch 205. A wire brush 601 is installed at the bottom of the sliding sleeve 603. The wire brush 601 is of a funnel shape structure. The wire brush 601 is located on the outer side of the bottom of the plasma welding torch 205. A toothed ring 605 is installed at the top of the sliding sleeve 603. A driving motor 607 is installed on the outer side of the fixed sleeve 602. A gear 606 is installed on the output shaft of the driving motor 607. The gear 606 is vertically engaged with the toothed ring 605. Through the installation of the fixed sleeve 602, it is beneficial to rotatably connect the sliding sleeve 603. Through the installation of the sliding sleeve 603, it is beneficial to connect the wire brush 601. Through the cooperation of the toothed ring 605 and the gear 606, driven by the driving motor 607, the sliding sleeve 603 rotates continuously. Then, it is realized that the wire brush 601 rotates on the outer side of the bottom of the plasma welding torch 205. When the plasma welding torch 205 welds, the wire brush 601 first abuts against the part, realizing the erasure of debris at the welding place, making the welding quality better.

[0042] Specifically, asFigure 8 and Figure 9 As shown in Figure 9 , the dust suction mechanism 7 includes a collecting groove 702. An annular collecting groove 702 is provided inside the top of the fixed sleeve 602. A plurality of vertical diversion grooves 703 are provided inside the bottom of the fixed sleeve 602. The bottoms of the plurality of diversion grooves 703 extend into the inside of the sliding sleeve 603, and the tops of the plurality of diversion grooves 703 extend into the inside of the collecting groove 702. A connecting pipe 701 is installed on the outside of the fixed sleeve 602. One end of the connecting pipe 701 extends into the inside of the collecting groove 702. By providing the collecting groove 702, it is beneficial to make the plurality of diversion grooves 703 communicate. By connecting the connecting pipe 701 with an external dust suction pipe, under a strong suction force, the debris scraped by the wire brush 601 can be sucked away through the diversion grooves 703, thereby keeping it clean. At the same time, the flue gas can also be sucked away to reduce pollution.

[0043] Specifically, as Figure 1 and Figure 10 As shown in Figure 10 , a control mechanism 8 is installed on the Z-axis slide table 203. The control mechanism 8 includes a fixed block 801. The fixed block 801 is installed on the outside of the top of the Z-axis slide table 203. A plug 803 is slidably connected inside the fixed block 801 through a return spring 804. A pressure rod 802 is installed on the top of the plug 803. The top of the pressure rod 802 extends to the outside of the fixed block 801. The pressure rod 802 is slidably connected with the fixed block 801. Through grooves 807 are provided inside both ends of the fixed block 801. The opposite ends of the two through grooves 807 respectively extend to the outside of the return spring 804. A dust suction pipe 805 and a delivery pipe 806 are respectively installed at both ends of the fixed block 801. One ends of the dust suction pipe 805 and the delivery pipe 806 extend into the inside of the through groove 807. The other end of the dust suction pipe 805 is connected with the connecting pipe 701. By installing the fixed block 801, it is beneficial to connect the plug 803. By installing the delivery pipe 806, connection with an external dust suction pipe is realized. By installing the dust suction pipe 805, it is beneficial to connect the connecting pipe 701. By installing the return spring 804, the plug 803 is pushed up to make the through groove 807 communicate, facilitating the external dust suction pipe to suck the dust inside the dust suction pipe 805 and the connecting pipe 701. When the Z-axis slide table 203 is reset and welding work is not carried out, the pressure rod 802 is pushed downwards. The pressure rod 802 drives the plug 803 to slide against the elastic force of the return spring 804, realizing the blocking of the guide groove 403, and thus the dust suction work cannot be carried out.

[0044] Specifically, as Figure 10As shown, a push switch 808 is installed at the center inside the fixed block 801. The push switch 808 is electrically connected to the drive motor 607. The top of the push switch 808 extends to the inner side of the bottom of the return spring 804. By installing the push switch 808, it is beneficial to be electrically connected to the drive motor 607. When the plug 803 does not contact the push switch 808, the drive motor 607 works normally. When the plug 803 is contacted and touches the push switch 808, the push switch 808 is driven to cut off the power supply of the drive motor 607, and the drive motor 607 cannot work.

[0045] When the present invention is in use, first, through the installation of two columns 201, it is beneficial to support and connect the X-axis slide 202. Through the installation of the X-axis slide 202, it is beneficial to connect the Z-axis slide 203. Through the installation of the Z-axis slide 203, it is beneficial to connect the plasma welding torch 205. And through the cooperation of the X-axis slide 202 and the Z-axis slide 203, the plasma welding torch 205 can move in position and height, facilitating the welding of plates. Through the installation of the first turntable 204, the swing angle of the plasma welding torch 205 is realized, facilitating welding at different angles. Through the cooperation of the Y-axis slide 207 and the second turntable 208, the movement and rotation orientation of the placement table 206 are realized, enabling rapid welding of parts at different positions. Through the vertical connection of multiple support columns 303 and the placement table 206, it is beneficial to install multiple support rods 301. Through the cooperation of the compression spring 304, the support rod 301 and the top of the support column 303 can slide telescopically. When the part is placed on multiple support columns 303, under the action of gravity, the part presses the support rod 301 to slide downward against the elastic force of the compression spring 304. After the part sinks to a certain position, the support rods 301 that do not slide will abut against the outside of the part, playing a role in positioning and preventing the part from swinging. Through the opening of the movable groove 402, it is beneficial to install the base 405. With the cooperation of multiple connecting springs 406, the base 405 is located at the center of the movable groove 402. By pushing the support column 303, it is beneficial to drive the base 405 to slide a certain position against the elastic force of the connecting spring 406, realizing the abutting and clamping of the outer wall of the part, ensuring the stability of the part. Through the installation of the rubber sleeve 302, it is beneficial to play a role in anti-slip and anti-wear, and tightly abuts against the outer wall of the part without loosening. Through the design of the hexagonal prism structure of the support rod 301, it is beneficial for the support rod 301 not to rotate when sliding with the support column 303, preventing the part being abutted from shifting. Through the installation of the cover plate 401, it is beneficial to shield and protect the top of the movable groove 402, and enable the base 405 to only slide without tipping over, playing a guiding role. Through the opening of the guide groove 403, it is beneficial for the support column 303 to be able to swing in position. With the cooperation of the dust-proof cover 404, it plays a dust-proof role, preventing debris from entering the inside of the guide groove 403 and affecting the sliding of the base 405. Through the installation of the driving rod 501, it is beneficial to drive and control the screw rod 505. Then, under the cooperation of the thread, the screw rod 505 squeezes the pressing block 502, so that the pressing block 502 drives the anti-slip pad 503 to abut against and limit the bottom of the movable groove 402, making the base 405 unable to slide, ensuring the stability of the part. The top of the screw rod 505 is a hexagonal structure. When the driving rod 501 slides along with the support rod 301, the bottom of the driving rod 501 slides with the top of the screw rod 505, and can also drive and control the screw rod 505, making the operation more convenient and flexible. Through the installation of the fixed sleeve 602, it is beneficial to rotatably connect the sliding sleeve 603. Through the installation of the sliding sleeve 603, it is beneficial to connect the wire brush 601. Through the cooperation of the gear ring 605 and the gear 606, under the drive of the drive motor 607, the sliding sleeve 603 rotates continuously.Furthermore, it is realized that the wire brush 601 rotates on the outer side of the bottom of the plasma welding torch 205. When the plasma welding torch 205 is welding, the wire brush 601 first contacts the part, so as to erase debris at the welding position, making the welding quality better. By opening the collecting groove 702, it is beneficial to conduct multiple diversion grooves 703. Through the connection of the connecting pipe 701 with the external dust suction pipeline, under strong suction, the debris scraped by the wire brush 601 can be sucked away through the diversion grooves 703, thus keeping it clean. At the same time, the flue gas can also be sucked away to reduce pollution. By installing the fixing block 801, it is beneficial to connect the plug 803. By installing the conveying pipe 806, the connection with the external dust suction pipeline is realized. By installing the dust suction pipe 805, it is beneficial to connect the connecting pipe 701. By installing the return spring 804, the plug 803 is pushed to rise, realizing the conduction of the through groove 807, which is convenient for the external dust suction pipeline to suck the dust inside the dust suction pipe 805 and the connecting pipe 701. When the Z-axis slide 203 resets and the welding work is not carried out, the pressure rod 802 is pushed to slide down. The pressure rod 802 drives the plug 803 to slide away from the elastic force of the return spring 804, realizing the blockage of the guide groove 403, and thus the dust suction work cannot be carried out. By installing the push switch 808, it is beneficial to be electrically connected with the drive motor 607. When the plug 803 does not contact the push switch 808, the drive motor 607 works normally. When the plug 803 is pushed to contact the push switch 808, the push switch 808 is driven, realizing the power cut-off of the drive motor 607, and the drive motor 607 cannot work.

[0046] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0047] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A plasma arc welding machine for machining mechanical parts, characterized in that, It includes a frame (1), on which a welding mechanism (2) is installed. The welding mechanism (2) includes a placement table (206), on which a support mechanism (3) is installed. An adjustment mechanism (4) is installed on the support mechanism (3), and a cleaning mechanism (6) and a dust suction mechanism (7) are installed on the welding mechanism (2). The support mechanism (3) includes support columns (303). Multiple rows of equally spaced support columns (303) are vertically connected to the top of the placement table (206). Support rods (301) are respectively installed at the tops of the multiple support columns (303), and the bottoms of the support rods (301) are slidably connected to the inside of the support columns (303) through compression springs (304).

2. The plasma arc welding machine for machining mechanical parts according to claim 1, wherein: The adjustment mechanism (4) includes movable slots (402). Multiple rows of equally spaced movable slots (402) are provided inside the top of the placement table (206). Bases (405) are respectively slidably connected inside the multiple movable slots (402). A plurality of connecting springs (406) are connected between the side walls of the bases (405) and the inner side walls of the movable slots (402). The bottoms of the support columns (303) are vertically connected to the centers of the tops of the bases (405).

3. The plasma arc welding machine for machining mechanical parts according to claim 2, wherein: Rubber sleeves (302) are respectively snap-connected to the outer sides of the tops of the multiple support rods (301). The diameter of the rubber sleeves (302) is larger than the diameter of the tops of the support rods (301), and the bottoms of the support rods (301) are of hexagonal prism structures.

4. A plasma arc welding machine for machining mechanical parts according to claim 3, characterized in that: Covers (401) are respectively snap-connected to the tops of the multiple movable slots (402). Circular guide slots (403) are provided on the covers (401). The bases (405) are slidably connected to the bottoms of the covers (401). The bottoms of the support columns (303) slide inside the guide slots (403). Dust covers (404) are installed on the outer sides of the bottoms of the support columns (303). The dust covers (404) are of funnel-shaped structures. The bottoms of the dust covers (404) are connected to the outer sides of the tops of the covers (401), and the dust covers (404) are located at the tops of the guide slots (403).

5. A plasma arc welding machine for machining mechanical parts according to claim 1, characterized in that: Two columns (201) are vertically connected to one end of the top of the frame (1). An X-axis slide (202) is installed between the tops of the two columns (201). A Z-axis slide (203) is connected in cooperation with the X-axis slide (202). A first turntable (204) is connected in cooperation with the bottom of one side of the Z-axis slide (203). A plasma welding torch (205) is installed on the first turntable (204). A Y-axis slide (207) is installed at the midline of the top of the frame (1). A second turntable (208) is installed on the Y-axis slide (207). The top of the second turntable (208) is connected to the center of the bottom of the placement table (206).

6. A plasma arc welding machine for machining mechanical parts according to claim 2, characterized in that: A limiting mechanism (5) is installed inside the base (405). The limiting mechanism (5) includes a driving rod (501). The driving rod (501) is rotatably connected inside the support rod (301). Both ends of the driving rod (501) extend to the outside of both ends of the support rod (301). A pressing block (502) is slidably connected to the inner side of the bottom of the base (405). The bottom of the pressing block (502) extends to the outside of the base (405). The top of the pressing block (502) is rotatably connected to a screw rod (505) through a rotating block (504). The top of the screw rod (505) is of a hexagonal prism structure. The bottom of the screw rod (505) is threadedly connected to the inside of the base (405). The top of the screw rod (505) penetrates through the compression spring (304) and is slidably connected to the inner side of the bottom of the screw rod (505). The pressing block (502) is of a hexagonal structure. An anti-slip pad (503) is installed at the bottom of the pressing block (502). The bottom of the anti-slip pad (503) abuts against the bottom of the movable groove (402).

7. A plasma arc welding machine for machining mechanical parts according to claim 5, characterized in that: The cleaning mechanism (6) includes a fixed sleeve (602). The fixed sleeve (602) is snap-fitted to the outside of the bottom of the plasma welding torch (205). The bottom of the fixed sleeve (602) is rotatably connected to a sliding sleeve (603) through a bearing (604). The sliding sleeve (603) is located on the outside of the bottom of the plasma welding torch (205). A wire brush (601) is installed at the bottom of the sliding sleeve (603). The wire brush (601) is of a funnel-shaped structure. The wire brush (601) is located on the outside of the bottom of the plasma welding torch (205). A toothed ring (605) is installed at the top of the sliding sleeve (603). A driving motor (607) is installed on the outside of the fixed sleeve (602). A gear (606) is installed on the output shaft of the driving motor (607). The gear (606) is vertically meshed with the toothed ring (605).

8. A plasma arc welding machine for machining mechanical parts according to claim 7, characterized in that: The dust suction mechanism (7) includes a collecting groove (702). An annular collecting groove (702) is provided on the inner side of the top of the fixed sleeve (602). A plurality of vertical diversion grooves (703) are provided on the inner side of the bottom of the fixed sleeve (602). The bottoms of the plurality of diversion grooves (703) extend into the inside of the sliding sleeve (603). The tops of the plurality of diversion grooves (703) extend into the inside of the collecting groove (702). A connecting pipe (701) is installed on the outside of the fixed sleeve (602). One end of the connecting pipe (701) extends into the inside of the collecting groove (702).

9. A plasma arc welding machine for machining mechanical parts according to claim 8, characterized in that: A control mechanism (8) is installed on the Z-axis slide (203). The control mechanism (8) includes a fixed block (801). The fixed block (801) is installed on the outer side of the top of the Z-axis slide (203). A plug (803) is slidably connected inside the fixed block (801) through a return spring (804). A pressure rod (802) is installed on the top of the plug (803). The top of the pressure rod (802) extends to the outside of the fixed block (801). The pressure rod (802) is slidably connected to the fixed block (801). Through grooves (807) are provided inside both ends of the fixed block (801). The opposite ends of the two through grooves (807) respectively extend to the outside of the return spring (804). A dust suction pipe (805) and a delivery pipe (806) are respectively installed at both ends of the fixed block (801). One ends of the dust suction pipe (805) and the delivery pipe (806) extend into the through grooves (807). The other end of the dust suction pipe (805) is connected to a connecting pipe (701).

10. A plasma arc welding machine for machining mechanical parts according to claim 9, characterized in that: A push switch (808) is installed at the center inside the fixed block (801). The push switch (808) is electrically connected to a drive motor (607). The top of the push switch (808) extends to the inner side of the bottom of the return spring (804).

Images