Self-cleaning pressure welding equipment

Abstract

The utility model belongs to the technical field of automatic welding, and particularly relates to self-cleaning pressure welding equipment which comprises a base and a main machine fixed to the base. The tin removing mechanism comprises a telescopic mechanism fixedly connected to the side, away from the main machine, of the base and a first guide rail fixedly connected to the side, adjacent to the main machine, of the base. The air ducts are arranged on the two sides of the welding machine head, hot air is blown to the welding machine head through the air ducts, the welding machine head is heated to soften impurities on the bottom face of the welding machine head, and then the impurities such as tin slag and rosin remaining on the bottom face of the blocky welding machine head are scraped off in a scraping mode through the scraper, so that the impurities on the bottom face of the welding machine head are scraped off while the scraper scrapes the materials. And the negative pressure suction mechanism can generate negative pressure, so that negative pressure is also formed at the feeding hole in the scraper blade, and impurities scraped by the scraper blade are sucked into the feeding hole and are collected in the scraper blade so as to be subjected to centralized treatment conveniently.

Description

Technical Field

[0001] The present application relates to the technical field of automatic welding, in particular to self-cleaning pressure welding equipment. Background Art

[0002] Pulse hot pressing welding machine is used to weld FPC, PCB, LED display, cable, terminal, USB connector and other products.

[0003] In order to remove rosin and other substances on the pressure head, a cleaning mechanism specifically for cleaning the welding head has emerged. The existing cleaning mechanism generally includes a welding head cleaning mechanism including a motor and a brush. The motor is connected to the cleaning brush, and the motor can drive the brush to rotate. When the ceramic pressure head needs to be cleaned, the brush is driven to rotate by the motor to clean the ceramic pressure head. However, the rosin will become very hard after condensation. It is difficult to use a brush to clean the solidified rosin, resulting in unsatisfactory cleaning effect.

[0004] In order to solve the above problems, the existing patent (Announcement No.: CN217963866U) discloses an automatic cleaning device for welding head of welding equipment, including a pressure head, welding head, tin wire, cleaning mechanism, feeding slot, heating assembly, hot air nozzle, nozzle body, hot air outlet, air duct body and other structures, by heating the high-pressure gas and spraying it through the hot air nozzle. The high-pressure hot air is sprayed to the feeding slot through the hot air nozzle, and the rosin and other debris on the feeding slot will be instantly softened and melted under the action of heat energy and wind energy, and fall off from the feeding slot;

[0005] However, the method of using hot air heating to remove debris in the existing patents can only be used for cylindrical pressure heads and the feeding slot is opened on the side. If the welding head of the pressure welding equipment is a block welding head, this side heating and shedding method cannot make all the debris on the bottom surface of the block welding head fall off. Therefore, there is no better solution for removing debris from the block welding head. Utility Model Content

[0006] The purpose of the present application is to provide a self-cleaning pressure welding device to solve the problem that the side heating and shedding method proposed in the above background technology cannot completely remove the debris on the bottom surface of the block welding head.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a self-cleaning pressure welding device, comprising a base and a main machine fixed on the base, the base is also connected to a tin cleaning mechanism and a welding platform, and the tin cleaning mechanism comprises a telescopic mechanism fixedly connected to the side of the base away from the main machine, a guide rail 1 fixedly connected to the side of the base adjacent to the main machine, an outer shell slidingly connected to the guide rail 1 and fixedly connected to the telescopic end of the telescopic mechanism, a box body fixedly connected to one side of the outer shell, a cylinder 3 fixedly connected to the inside of the outer shell, and a scraping mechanism arranged inside the box body and fixedly connected to the telescopic end of the cylinder 3;

[0008] A pressure welding mechanism and a mounting frame are installed on the outer surface of one side of the main machine, and two air ducts are symmetrically fixedly connected to the left and right sides of the pressure welding mechanism, and a fume purification mechanism is fixedly connected to the air outlet side of one of the air ducts.

[0009] In one embodiment, the scraper mechanism includes two guide strips symmetrically fixed on the inner wall of the box body, a scraper located inside the box body, a guide groove opened inside the scraper and matching the guide strip, a scraper plane arranged on the side adjacent to the scraper and the welding head and two symmetrically arranged inclined surfaces, a feed port opened inside the scraper and located between the two inclined surfaces, a plate body rotatably connected to the inside of the feed port, and a negative pressure suction mechanism fixedly connected to the side of the plate body away from the scraper.

[0010] In one embodiment, a cleaning cotton 1 is fixedly connected to one side of the scraper adjacent to the outer shell, a cleaning cotton 2 is fixedly connected to the side wall adjacent to the cleaning cotton 1 inside the feed port, and a water tank connected to the feed port is provided at the bottom of the scraper, and a portion of the cleaning cotton 2 extends into the water tank.

[0011] In one embodiment, the negative pressure suction mechanism includes a cover body fixedly connected to the side of the plate body away from the scraper, an outer baffle plate and an inner baffle plate fixedly connected to the inner wall of the cover body, a through groove opened inside the plate body, and an air pipe fixedly connected to the side of the cover body away from the plate body.

[0012] In one embodiment, the flue gas purification mechanism includes a seat body fixedly connected to the air outlet side of one of the air ducts, a cavity opened inside the seat body, a fan and a primary filter plate fixedly connected to the inner wall of the cavity, and the side of the cavity adjacent to the air duct is a smoke inlet, and the side of the cavity away from the air duct is a smoke exhaust port.

[0013] In one embodiment, the pressure welding mechanism includes a servo movable mechanism fixedly connected to the outer surface of one side of the main machine, a pressure sensor fixedly connected to the moving end of the servo movable mechanism, and a welding head fixedly connected to the detection end of the pressure sensor, wherein the air inlet side of one of the air ducts and the air outlet side of the other air duct are located in the same horizontal plane and face the welding head, and the two air ducts are fixedly connected to the left and right sides of the pressure sensor.

[0014] In one embodiment, the welding platform includes a guide rail 2 fixedly connected to the side adjacent to the base and the main machine, a slide seat slidably connected to the guide rail 2, a fixing clamp fixedly connected to the slide seat on the side away from the base, a slide groove 2 opened inside the base, and a cylinder 2 fixedly connected to the side away from the base and the main machine. The side adjacent to the base is provided with an extension end matching the size of the slide groove 2, and the extension end passes through the slide groove 2 and is fixedly connected to the telescopic end of the cylinder 2. The telescopic mechanism includes a slide groove 1 opened inside the base, a connecting seat slidably connected inside the slide groove 1 and one end of which is fixedly connected to the outer shell, and a cylinder 1 fixedly connected to the side away from the base and the main machine, and the telescopic end of the cylinder 1 is fixedly connected to the other end of the connecting seat.

[0015] In one embodiment, a display screen is fixedly connected to an outer surface of one side of the host, a CCD camera is fixedly connected to an end of the mounting frame away from the host, and the CCD camera is located above the welding platform.

[0016] Compared with the prior art, the beneficial effects of this application are:

[0017] The utility model is provided with air ducts on both sides of the welding head, through which hot air is blown to the welding head, the welding head is heated to soften impurities on the bottom surface of the welding head, and then a scraper is used to scrape off impurities such as tin slag and rosin remaining on the bottom surface of the block welding head. While the scraper is scraping, the negative pressure suction mechanism can generate negative pressure so that the feed port inside the scraper also forms negative pressure, thereby sucking the impurities scraped off by the scraper into the feed port and collecting them inside the scraper for centralized treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of this application;

[0019] Figure 2 This is a schematic diagram of the structure of cylinder 1 and cylinder 2 of this application;

[0020] Figure 3 This is a schematic diagram of the outer shell and box structure of this application;

[0021] Figure 4 This is a schematic diagram of the scraping mechanism structure of this application;

[0022] Figure 5 This is a schematic diagram of the cleaning cotton 1, cleaning cotton 2 and guide groove structure of this application;

[0023] Figure 6 This is a schematic diagram of the structure of the negative pressure suction mechanism of this application;

[0024] Figure 7 This is a schematic diagram of the structure of the flue gas purification mechanism for this application.

[0025] In the figure: 1, host; 2, display screen; 3, servo moving mechanism; 4, mounting frame; 5, CCD camera; 6, pressure sensor; 7, welding head; 8, air duct; 9, tin cleaning mechanism; 91, guide rail 1; 92, cylinder 1; 93, connecting seat; 94, slide 1; 95, outer shell; 96, box body; 961, guide strip; 97, scraper mechanism; 971, scraper; 972, cleaning cotton 1; 973, scraper plane; 974, inclined plane; 975, Feed inlet; 976, plate body; 977, guide groove; 98, cleaning cotton 2; 99, negative pressure suction mechanism; 991, outer baffle; 992, inner baffle; 10, welding platform; 101, fixing fixture; 102, guide rail 2; 103, slide seat; 104, slide groove 2; 105, cylinder 2; 11, flue gas purification mechanism; 111, seat body; 112, smoke exhaust port; 113, fan; 114, primary filter plate; 115, smoke inlet; 12, base. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0028] Example:

[0029] See also Figure 1-7The present application provides a technical solution: a self-cleaning pressure welding device, comprising a base 12 and a main machine 1 fixed on the base 12, the base 12 is also connected to a tin cleaning mechanism 9 and a welding platform 10, the tin cleaning mechanism 9 is used to clean the tin slag remaining on the welding head 7, the welding platform 10 is used to move the fixture and the workpiece fixed in the fixture, and the tin cleaning mechanism 9 includes a telescopic mechanism fixedly connected to the side of the base 12 away from the main machine 1, a guide rail 91 fixedly connected to the side of the base 12 adjacent to the main machine 1, an outer shell 95 slidably connected to the guide rail 91 and fixedly connected to the telescopic end of the telescopic mechanism, and a box body fixedly connected to one side of the outer shell 95 96, a cylinder 3 fixedly connected to the inside of the outer shell 95, and a scraper mechanism 97 arranged inside the box body 96 and fixedly connected to the telescopic end of the cylinder 3. After welding is completed, the telescopic mechanism extends to drive the outer shell 95 to slide on the guide rail 1 91, and drives the box body 96 to move to the bottom of the welding head 7. The welding head 7 descends to perform welding. Since the welding head 7 is cleaned, the welding head 7 does not need to be heated. The cylinder 3 extends to drive the scraper mechanism 97 to extend and move in the box body 96. The scraper mechanism 97 must be in contact with the bottom surface of the welding head 7, so the scraper mechanism 97 can scrape off impurities such as tin slag and rosin on the bottom surface of the welding head 7;

[0030] A pressure welding mechanism and a mounting frame 4 are installed on the outer surface of one side of the main machine 1. The pressure welding mechanism includes a servo moving mechanism 3 fixedly connected to the outer surface of one side of the main machine 1, a pressure sensor 6 fixedly connected to the moving end of the servo moving mechanism 3, and a welding head 7 fixedly connected to the detection end of the pressure sensor 6. The servo moving mechanism 3 adopts a transmission method of a motor plus a screw, which can drive the pressure sensor 6 to move up and down. When the welding head 7 is pressed down on the workpiece to perform welding, the pressure sensor 6 can detect the welding pressure. The pressure sensor 6 and the welding head 7 are both mature technologies in this field and will not be repeated here. And there are two air ducts 8 symmetrically fixedly connected to the left and right sides of the pressure welding mechanism, and the two air ducts 8 are respectively fixedly connected to the left and right sides of the pressure sensor 6, the air inlet side of one of the air ducts 8 and the air outlet side of the other air duct 8 are located in the same horizontal plane and face the welding head 7, and the air outlet side of one of the air ducts 8 is fixedly connected with a fume purification mechanism 11. When the pressure sensor 6 moves, the two air ducts 8 also move at the same time. It should be noted here that the two air ducts 8 play two roles. The first role is that when the welding head 7 is pressure welding, the right air duct 8 blows out hot air to blow the fume generated during welding toward the left air duct 8, and the left fume purification mechanism 11 generates negative pressure to suck the wind of the right air duct 8 out of the left air duct 8, and it is purified by the fume purification mechanism 11 and discharged; another role is that when the tin cleaning mechanism 9 cleans the bottom surface of the welding head 7, the right air duct 8 blows out hot air to heat the tin slag, rosin and other debris on the welding head 7 to soften and melt them, which is convenient for scraping.

[0031] See also Figure 4 In this embodiment, the scraper mechanism 97 includes two guide strips 961 symmetrically fixed on the inner wall of the box body 96, a scraper 971 located inside the box body 96, a guide groove 977 (used to guide the movement of the scraper 971) provided inside the scraper 971 and matching the guide strip 961, a scraper plane 973 provided on the side adjacent to the scraper 971 and the welding head 7 and two symmetrically arranged inclined surfaces 974, a feed port 975 provided inside the scraper 971 and located between the two inclined surfaces 974 (the scraper plane 973 can fit with the bottom surface of the block welding head 7 to scrape off the debris on the bottom surface of the welding head 7, and the two inclined surfaces 97 4 plays a role of avoiding position. When the scraper 971 moves to the right to scrape impurities, the impurities can enter the angle between the inclined surface 974 and the welding head 7, and then enter the interior of the scraper 971 from the feed port 975), the plate body 976 connected to the inside of the feed port 975 is rotated, and the negative pressure suction mechanism 99 is fixedly connected to the plate body 976 and the side away from the scraper 971. The rotating plate body 976 can centrally process the impurities inside the scraper 971, and the negative pressure suction mechanism 99 can generate negative pressure so that the feed port 975 inside the scraper 971 also forms a negative pressure, thereby sucking the impurities scraped by the scraper 971 into the feed port 975.

[0032] A cleaning cotton 972 is fixedly connected to one side of the scraper 971 adjacent to the outer shell 95, a cleaning cotton 98 is fixedly connected to the side wall adjacent to the cleaning cotton 972 inside the feed port 975, and a water storage tank connected to the feed port 975 is opened at the bottom of the scraper 971, and part of the cleaning cotton 98 extends into the water storage tank. The cleaning cotton 972 is used for secondary cleaning and wiping of the bottom surface of the welding head 7 after the scraping and cleaning, and the cleaning cotton 98 is used to absorb water in the water storage tank to ensure its own moisture. When the tin slag enters the inside of the plate body 976 from the feed port 975, the cleaning cotton 98 can cool the tin slag.

[0033] The negative pressure suction mechanism 99 includes a cover body fixedly connected to the side of the plate body 976 away from the scraper 971, an outer baffle 991 and an inner baffle 992 fixedly connected to the inner wall of the cover body, a through groove opened inside the plate body 976, and an air pipe fixedly connected to the cover body and the side away from the plate body 976. The two baffles are used to prevent impurities from entering the cover body from the inside of the scraper 971, thereby playing a role of blocking material.

[0034] The fume purification mechanism 11 includes a seat body 111 fixedly connected to the air outlet side of one of the air ducts 8, a cavity opened inside the seat body 111, a fan 113 and a primary filter plate 114 fixedly connected to the inner wall of the cavity, and the side of the cavity adjacent to the air duct 8 is a smoke inlet 115, and the side of the cavity away from the air duct 8 is a smoke exhaust port 112, the air outlet end of the fan 113 faces the smoke exhaust port 112, and the fan 113 works to form a negative pressure inside the cavity, so that the fume generated during welding can enter the cavity from the smoke inlet 115, and be discharged from the smoke exhaust port 112 after being filtered by the primary filter plate 114, thereby realizing the purification of the fume.

[0035] The welding platform 10 includes a guide rail 102 fixedly connected to the side of the base 12 adjacent to the main machine 1, a slide 103 slidably connected to the guide rail 102, a fixing fixture 101 fixedly connected to the slide 103 on the side away from the base 12, a slide groove 104 provided inside the base 12, and a cylinder 105 fixedly connected to the side away from the base 12 and the main machine 1. The side of the slide 103 adjacent to the base 12 is provided with an extension end matching the size of the slide groove 104, and the extension end passes through the slide groove 104 and is fixedly connected to the telescopic end of the cylinder 105. The workpiece to be welded is fixed in the fixing fixture 101, and the slide is driven by the contraction of the cylinder 105. The base 103 moves, thereby moving the fixing fixture 101 to the bottom of the welding head 7, and the welding head 7 descends to contact the workpiece to complete welding; the telescopic mechanism includes a slide groove 94 opened in the base 12, a connecting base 93 slidably connected in the slide groove 94 and fixedly connected to the outer shell 95 at one end, and a cylinder 92 fixedly connected to the base 12 on the side away from the main machine 1, and the telescopic end of the cylinder 92 is fixedly connected to the other end of the connecting base 93, and the cylinder 92 is extended to push the connecting base 93 to move. When the connecting base 93 moves, it drives the outer shell 95 to slide on the guide rail 91, thereby moving the outer shell 95 and the box body 96 to the bottom of the welding head 7.

[0036] A display screen 2 is fixedly connected to the outer surface of one side of the host 1, and a CCD camera 5 is fixedly connected to the end of the mounting frame 4 away from the host 1, and the CCD camera 5 is located above the welding platform 10. The CCD camera 5 is used to detect the welding part, timely discover the workpiece with poor welding, and improve the yield rate.

[0037] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic features of the present application; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present application is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present application, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0038] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A self-cleaning pressure welding device, comprising a base (12) and a host (1) fixed on the base (12), characterized in that: The base (12) is also connected to a tin cleaning mechanism (9) and a welding platform (10), and the tin cleaning mechanism (9) comprises a telescopic mechanism fixedly connected to the side of the base (12) away from the main machine (1), a guide rail (91) fixedly connected to the side of the base (12) adjacent to the main machine (1), an outer shell (95) slidably connected to the guide rail (91) and fixedly connected to the telescopic end of the telescopic mechanism, a box body (96) fixedly connected to one side of the outer shell (95), a cylinder (3) fixedly connected to the inside of the outer shell (95), and a scraping mechanism (97) arranged in the inside of the box body (96) and fixedly connected to the telescopic end of the cylinder (3); A pressure welding mechanism and a mounting frame (4) are installed on the outer surface of one side of the main machine (1), and two air ducts (8) are symmetrically fixedly connected to the left and right sides of the pressure welding mechanism, and a fume purification mechanism (11) is fixedly connected to the air outlet side of one of the air ducts (8).

2. The self-cleaning pressure welding equipment according to claim 1, characterized in that: The scraper mechanism (97) comprises two guide strips (961) symmetrically fixed on the inner wall of the box body (96), a scraper (971) located inside the box body (96), a guide groove (977) opened inside the scraper (971) and matched with the guide strip (961), a scraper plane (973) and two symmetrically arranged inclined surfaces (974) arranged on the side of the scraper (971) adjacent to the welding head (7), a feed port (975) opened inside the scraper (971) and located between the two inclined surfaces (974), a plate body (976) rotatably connected inside the feed port (975), and a negative pressure suction mechanism (99) fixedly connected to the plate body (976) on the side away from the scraper (971).

3. The self-cleaning pressure welding equipment according to claim 2, characterized in that: A cleaning cotton 1 (972) is fixedly connected to one side of the scraper (971) adjacent to the outer shell (95), a cleaning cotton 2 (98) is fixedly connected to the side wall adjacent to the cleaning cotton 1 (972) inside the feed port (975), and a water storage tank connected to the feed port (975) is provided at the bottom of the scraper (971), and a portion of the cleaning cotton 2 (98) extends into the water storage tank.

4. The self-cleaning pressure welding equipment according to claim 3, characterized in that: The negative pressure suction mechanism (99) comprises a cover body fixedly connected to the side of the plate body (976) away from the scraper (971), an outer baffle plate (991) and an inner baffle plate (992) fixedly connected to the inner wall of the cover body, a through groove opened inside the plate body (976), and an air pipe fixedly connected to the side of the cover body away from the plate body (976).

5. The self-cleaning pressure welding equipment according to claim 1, characterized in that: The smoke purification mechanism (11) comprises a seat body (111) fixedly connected to the air outlet side of one of the air ducts (8), a cavity opened inside the seat body (111), a fan (113) and a primary filter plate (114) fixedly connected to the inner wall of the cavity, and the side of the cavity adjacent to the air duct (8) is a smoke inlet (115), and the side of the cavity facing away from the air duct (8) is a smoke exhaust port (112).

6. The self-cleaning pressure welding equipment according to any one of claims 4 or 5, characterized in that: The pressure welding mechanism comprises a servo movable mechanism (3) fixedly connected to the outer surface of one side of a main machine (1), a pressure sensor (6) fixedly connected to the movable end of the servo movable mechanism (3), and a welding head (7) fixedly connected to the detection end of the pressure sensor (6), wherein the air inlet side of one of the air ducts (8) and the air outlet side of the other air duct (8) are located in the same horizontal plane and face the welding head (7), and the two air ducts (8) are fixedly connected to the left and right sides of the pressure sensor (6).

7. The self-cleaning pressure welding equipment according to claim 1, characterized in that: The welding platform (10) comprises a second guide rail (102) fixedly connected to the side of the base (12) adjacent to the main machine (1), a slide seat (103) slidably connected to the second guide rail (102), a fixing fixture (101) fixedly connected to the slide seat (103) on the side away from the base (12), a second slide groove (104) provided inside the base (12), and a second cylinder (105) fixedly connected to the side of the base (12) away from the main machine (1), wherein the side of the slide seat (103) adjacent to the base (12) is provided with a fixing fixture (101) The extension end of the slide groove (104) matches the size of the slide groove (104), and the extension end passes through the slide groove (104) and is fixedly connected to the telescopic end of the cylinder (105). The telescopic mechanism includes a slide groove (94) opened inside the base (12), a connecting seat (93) slidably connected inside the slide groove (94) and one end of which is fixedly connected to the outer shell (95), and a cylinder (92) fixedly connected to the base (12) on the side away from the main machine (1), and the telescopic end of the cylinder (92) is fixedly connected to the other end of the connecting seat (93).

8. The self-cleaning pressure welding equipment according to any one of claims 1 or 7, characterized in that: A display screen (2) is fixedly connected to an outer surface of one side of the main machine (1), and a CCD camera (5) is fixedly connected to an end of the mounting frame (4) that is away from the main machine (1), and the CCD camera (5) is located above the welding platform (10).

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