An automated welding equipment for pressure gauge production

Abstract

The present invention relates to the technical field of automated welding of pressure gauges, and in particular to an automated welding device for the production of pressure gauges. Technical problem: There are burrs on the open end of the spring tube that is not crimped, which causes it to fail to fit with the bottom of the groove of the brass adapter, thereby causing the tin liquid to flow into the inside of the spring tube and block the spring tube. Technical solution: An automated welding device for the production of pressure gauges, including an electric welder, a connecting ring, and a top plate, etc.; the electric welder is fixedly connected to the connecting ring; the connecting ring is fixedly connected to the top plate. The present invention solves the problem that the tin liquid is injected from top to bottom, causing the tin liquid to be blocked by the outer side of the spring tube and the welding groove of the brass adapter, resulting in air leakage at the welding part. Therefore, a round tube is inserted into the bottom of the welding groove of the brass adapter, and then the lifting bracket drives the round tube to move upward, so that the tin liquid is filled from the inner bottom of the welding groove upward, avoiding the problem of uneven distribution of the tin liquid, which causes air leakage at the welding part of the brass adapter.

Description

Technical Field

[0001] The invention relates to the technical field of automatic welding of pressure gauges, and in particular to automatic welding equipment for producing pressure gauges. Background Art

[0002] In the prior art, when welding the spring tube and the brass adapter of the pressure gauge, it is necessary to first roll the flat spring tube into a semicircular ring shape. After the production is completed, the opening of one end of the spring tube is crimped and placed in molten tin liquid to seal the crimped end. Then, the uncrimped end of the spring tube is inserted into the groove of the brass adapter, and then the connection between the spring tube and the brass adapter is welded. However, there are burrs on the uncrimped open end of the spring tube, which causes the open end of the spring tube to fail to fit with the bottom of the groove of the brass adapter, thereby causing the tin liquid to flow into the inside of the spring tube, blocking the spring tube and causing a decrease in product quality. When welding the spring tube and the brass adapter, the prior art welding, in order to improve efficiency, only welds one side of the connection between the open end of the spring tube and the brass adapter. This welding method causes the sealing of the connection between the open end of the spring tube and the brass adapter to decrease and the welding to be loose, thereby causing a decrease in product quality. Summary of the invention

[0003] In order to overcome the disadvantage that the open end of the spring tube that is not crimped has burrs, resulting in failure to fit with the bottom of the groove of the brass adapter, thereby causing the tin liquid to flow into the inside of the spring tube and block the spring tube, the present invention provides an automated welding equipment for pressure gauge production.

[0004] The technical implementation scheme of the present invention is: an automated welding equipment for pressure gauge production, including a first connecting plate, a first guide rail, a first moving block, a first motor, an electric welder, a second motor, a fixture, a manipulator and a first push rod; the first connecting plate is fixedly connected to the first guide rail; the first guide rail is slidably connected to the first moving block, and a lifting bracket is provided on the upper part of the first moving block; the lifting bracket is fixedly connected to the first push rod; the telescopic part of the first push rod is fixedly connected to the first motor; the rotating part of the first motor is fixedly connected to the electric welder; the rear side of the first connecting plate is fixedly connected to the second motor; the rotating part of the second motor is fixedly connected to the fixture, and the fixture consists of a plurality of support rings, a support seat, a second guide rail, and a second It consists of a moving block and an electric suction cup, the upper support ring is shorter than the lower support ring, a support seat is provided on the right side of the clamp, the clamp is fixedly connected to a second guide rail, the second guide rail is slidably connected to a second moving block, and the second moving block is fixedly connected to an electric suction cup; a manipulator is fixedly connected to the first connecting plate; it also includes a connecting ring, a top plate, a top head and a grinding sheet; the electric welding machine is fixedly connected to the connecting ring; the connecting ring is fixedly connected to the top plate, and the four sides of the rear side of the top plate are all inclined to form an isosceles trapezoidal structure; the right side of the top plate is fixedly connected to the top head, the outer surface of the top head is set to a rough surface, and the diameter of the top head fixing part is the same as the opening width of the spring tube; the upper and lower sides of the top plate are fixedly connected to grinding sheets.

[0005] Optionally, the plug is conically arranged, and the tip portion of the plug is deformable.

[0006] Optionally, the grinding sheet is arc-shaped with the convex surface facing the rear side and is deformable.

[0007] Optionally, it also includes a fixing assembly; the fixing assembly includes a second push rod, a fixing ring, an L-shaped plate, a second connecting plate, a containing frame, a second spring, a baffle, a round tube, a first spring and a push rod; the second push rod is fixed to the upper part of the electric welding machine; the telescopic part of the second push rod is fixed to the fixing ring, and the fixing ring is slidably connected to the electric welding machine; a plurality of first springs are fixed to the bottom of the fixing ring; each first spring is fixed to a push rod, each push rod has a convex portion on its upper part, and each push rod is slidably connected to the fixing ring; a plurality of L-shaped plates are fixed to the front side of the bottom of the electric welding machine; each L The mold plates are rotatably connected to a second connecting plate, and an oblique angle is provided on the opposite sides of all the second connecting plates. The heating part of the electric welding machine is provided with a plurality of heat-conducting tubes, and each heat-conducting tube is connected to the corresponding second connecting plate, and the second connecting plate is made of heat-conducting material; each second connecting plate is fixedly connected to a containing frame; a second spring is fixedly connected to the rear side of each containing frame; each second spring is fixedly connected to a baffle plate, which has a plurality of circular holes, and each baffle plate passes through the containing frame; a plurality of circular tubes are fixedly connected and connected to the bottom of each containing frame, and the circular holes are indirectly distributed with the circular tubes.

[0008] Optionally, a first inclined surface is provided on the front side of each receiving frame.

[0009] The first push rod pushes the first motor and the parts connected to it to move backward, so that the spring tube is located between the two containing frames. Optionally, it also includes a melting assembly; the melting assembly includes a scraping unit, a sharp cone and a surface removal unit; a plurality of sharp cones are fixedly connected to the bottom side of each containing frame facing away from the center of the electric welder; the electric welder is connected to a scraping unit for scraping residual tin liquid in the brass adapter groove; the clamp is connected to a surface removal unit for removing residual tin liquid on the outer surface of the spring tube.

[0010] Optionally, the scraping unit includes a fixed rod, a connecting column, an arc-shaped collecting frame and a rope; a fixed rod is fixedly connected to the front side of the electric welding machine; a connecting column is fixedly connected to the bottom of the fixed rod, and a heating tube is built into the connecting column; an arc-shaped collecting frame is fixedly connected to the left and right sides of the connecting column, and a plug is provided at the bottom of each arc-shaped collecting frame; each arc-shaped collecting frame is fixedly connected to a rope, and each rope passes through the connecting column and is fixed to the front side of the fixed ring.

[0011] Optionally, the arc-shaped collecting frame is arranged in an arc shape, and the arc-shaped collecting frame is elastic.

[0012] Optionally, the surface removal unit includes a third connecting plate, a third spring, a scraper, a round rod and a convex rod; each support ring is provided with a plurality of cavities; each cavity is fixedly connected to a third connecting plate; each third connecting plate is fixedly connected to a third spring; each third spring is fixedly connected to a scraper at one end away from the third connecting plate, the scraper is made of aluminum plate, a connecting block is provided on the left side of each scraper, and a second inclined surface is provided on the left side of each connecting block; the support ring is slidably connected to a plurality of round rods, and each round rod passes through the support ring and contacts with the corresponding second inclined surface.

[0013] Optionally, a convex rod is also included; a plurality of convex rods are fixedly connected inside the support ring, each convex rod is located above the corresponding connecting block, each convex rod penetrates the scraper and is slidably connected to the scraper.

[0014] Beneficial effect: The present invention solves the problem that some spring tubes have burrs on the open ends that are not crimped, resulting in failure to fit with the bottom of the groove of the brass adapter, which in turn causes the tin liquid to flow into the spring tube, blocking the spring tube and causing a decrease in product quality; the burrs are scraped off by driving the top head and the grinding disc through the first motor, the manipulator and the first moving block.

[0015] The present invention solves the problem that, when welding a spring tube and a brass adapter, in order to improve efficiency in the prior art, only one side of the connection between the open end of the spring tube and the brass adapter is welded, and this welding method will cause the sealing of the connection between the open end of the spring tube and the brass adapter to decrease and the welding to be loose, thereby causing the product quality to decrease. The present invention vertically clamps the tin bar by a manipulator, and places the middle part of the tin bar on a first inclined plane to melt the tin bar so that the tin liquid is evenly distributed in two receiving frames, and then contacts the brass adapter through the receiving frames, so that the round tube is inserted into the welding groove of the brass adapter, and then the tin liquid in the two receiving frames is filled into the welding groove of the brass adapter through the round tube, so as to realize the comprehensive welding of the open end of the spring tube and the brass adapter, so that the connection between the spring tube and the brass adapter is more stable.

[0016] The present invention solves the problem that the welding groove of the brass adapter has a certain depth, but the tin liquid is injected from top to bottom, resulting in the tin liquid being blocked by the outer side surface of the spring tube and the welding groove of the brass adapter, which in turn causes the tin liquid to be unevenly distributed in the welding groove of the brass adapter, easily generating holes, and causing air leakage at the welding position. Therefore, a round tube is inserted into the bottom of the welding groove of the brass adapter, and then the round tube is driven by a lifting bracket to move upward, so that the tin liquid is filled upward from the inner bottom of the welding groove, thereby avoiding the problem that the tin liquid is unevenly distributed and causes air leakage at the welding position of the brass adapter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the first structure disclosed by the automated welding equipment for producing pressure gauges of the present invention;

[0018] Figure 2 A second structural schematic diagram of the automated welding equipment for pressure gauge production disclosed by the present invention;

[0019] Figure 3 for Figure 2 A magnified image of point A;

[0020] Figure 4 A schematic diagram of a first partial structure of the automated welding equipment for pressure gauge production disclosed by the present invention;

[0021] Figure 5 A cross-sectional view of a welding assembly disclosed for the automated welding equipment for producing a pressure gauge of the present invention;

[0022] Figure 6 A cross-sectional view of a scraping unit disclosed in the automated welding equipment for producing a pressure gauge according to the present invention;

[0023] Figure 7 A schematic diagram of a second partial structure of the automated welding equipment for producing a pressure gauge disclosed by the present invention;

[0024] Figure 8 for Figure 7 The enlarged view of point B;

[0025] Fig. 9 This is a diagram of the state of the spring tube and brass adapter.

[0026] Label names in the figure: 1-first connecting plate, 2-first guide rail, 3-first moving block, 4-first motor, 5-electric welding machine, 6-second motor, 7-clamp, 8-manipulator, 9-first push rod, 101-connecting ring, 102-top plate, 103-top head, 104-grinding sheet, 105-second push rod, 106-fixing ring, 107-L-shaped plate, 108-second connecting plate, 109-accommodating frame, 1010-second spring, 1011-baffle, 1012-round tube, 1013-first spring, 1014-top rod, 201-fixing rod, 202-connecting column, 203-arc retracting Collection frame, 204-rope, 205-cone, 301-third connecting plate, 302-third spring, 303-scraper, 304-round rod, 305-convex rod, 3a-lifting bracket, 5a-heat pipe, 7a-support ring, 7b-support seat, 7c-second guide rail, 7d-second moving block, 7e-electric suction cup, 7f-cavity, 303a-connecting block, 303b-second inclined plane, 108a-oblique angle, 109a-first inclined plane, 1011a-round hole, 1014a-convex part, 203a-arc groove, 203b-collecting chamber, 200-spring tube, 300-brass adapter. DETAILED DESCRIPTION

[0027] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the present application and are not limited to the scope of the present application. The implementation conditions adopted in the examples can be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0028] An automated welding device for pressure gauge production, such as Figure 1-Figure 3 and Fig. 9 As shown, it includes a first connecting plate 1, a first guide rail 2, a first moving block 3, a first motor 4, an electric welder 5, a second motor 6, a clamp 7, a manipulator 8 and a first push rod 9; the first connecting plate 1 is bolted to the first guide rail 2; the first guide rail 2 is slidably connected to the first moving block 3, and a lifting bracket 3a is provided on the upper part of the first moving block 3; the lifting bracket 3a is bolted to the first push rod 9; the telescopic part of the first push rod 9 is bolted to the first motor 4; the rotating part of the first motor 4 is bolted to the electric welder 5; the rear side of the first connecting plate 1 is bolted to the second motor 6; the rotating part of the second motor 6 A fixture 7 is fixedly connected, and the fixture 7 consists of two upper and lower support rings 7a, a support seat 7b, a second guide rail 7c, a second moving block 7d and an electric suction cup 7e. The upper support ring 7a is shorter than the lower support ring 7a. A support seat 7b is provided on the right side of the fixture 7. The support ring 7a and the support seat 7b provide support for the spring tube 200 and the brass adapter 300. The fixture 7 is bolted to the second guide rail 7c, and the second guide rail 7c is slidably connected to the second moving block 7d. The second moving block 7d is bolted to the electric suction cup 7e; a manipulator 8 is bolted to the first connecting plate 1;

[0029] It also includes a connecting ring 101, a top plate 102, a plug 103 and a grinding sheet 104; the electric welding machine 5 is fixedly connected to the connecting ring 101; the connecting ring 101 is fixedly connected to the top plate 102, and the four sides of the rear side of the top plate 102 are all inclined; the right side of the top plate 102 is fixedly connected to the plug 103, and the outer surface of the plug 103 is set to a rough surface, and the diameter of the fixed part of the plug 103 is the same as the opening width of the spring tube 200; the upper side and the lower side of the top plate 102 are fixedly connected to the grinding sheet 104.

[0030] The plug 103 is conical in shape, and the tip of the plug 103 is deformable. The tip of the conical head is first inserted into the opening of the spring tube 200 and fully inserted, and then the spring tube 200 is driven forward by the manipulator 8, so that the plug 103 squeezes the overlapping wrinkles at the opening end of the spring tube 200 to restore it to its original state, thereby avoiding the problem of overlapping wrinkles at the opening end of the spring tube 200, which may lead to a decrease in product quality after the spring tube 200 is welded to the brass adapter 300.

[0031] The grinding sheet 104 is arc-shaped with the protruding surface facing the rear side and can be deformed. The protruding surface of the grinding sheet 104 pre-contacts the open end of the spring tube 200 and increases the friction force of the grinding sheet 104 on the open end of the spring tube 200, making the grinding efficiency of the grinding sheet 104 on the burrs on the open end of the spring tube 200 stronger.

[0032] Here is how the above example works:

[0033] During operation, a spring tube 200 is clamped by the manipulator 8, and one end of the opening of the spring tube 200 is facing the right side. Based on the view from top to bottom, the first motor 4 drives the electric welder 5, the connecting ring 101, the top plate 102, the top head 103 and the grinding sheet 104 to rotate counterclockwise, and the top head 103 is facing the spring tube 200. The position of the top head 103 is adjusted by the lifting bracket 3a, and the top head 103 is aligned with the front inner edge of the opening of the spring tube 200. Then the first moving block 3 drives the first motor 4, the electric welder 5, the connecting ring 101, the top plate 102, the top head 103 and the grinding sheet 104 to move to the left side, and the top head 103 is inserted into the spring tube 200. At the same time, the first motor 4 drives the top plate 102 to rotate counterclockwise, so that the top plate 102 is fixed. The end connected with the top head 103 is obliquely inserted into the opening of the spring tube 200, and then the first motor 4 drives the top plate 102 to rotate clockwise, so that the top plate 102 is turned back to a state parallel to the opening of the spring tube 200. At the same time, the first motor 4 adjusts the position of the spring tube 200 forward through the manipulator 8 during the process of driving the top plate 102 to rotate, so that the top plate 102 completely enters the opening of the spring tube 200. In the process of the spring tube 200 being driven forward by the manipulator 8, the inner edge of the opening of the spring tube 200 will rub against the rough surface of the top head 103, and then the top head 103 will grind off the burrs on the inner edge of the opening of the spring tube 200. At the same time, the convex surface of the grinding sheet 104 contacts the open end of the spring tube 200, so that the grinding sheet 104 will grind the spring The burrs on the open end of the spring tube 200 are ground off. Furthermore, since the grinding sheet 104 is arranged in an arc shape, the grinding sheet 104 can completely fit with the open end of the spring tube 200 when the first motor 4 drives the top plate 102 to rotate, and the burrs on the open end of the spring tube 200 are completely ground off, avoiding the problem that when the spring tube 200 is inserted into the groove of the brass adapter 300, there are burrs on the open end of the spring tube 200, resulting in the open end of the spring tube 200 being unable to fit with the bottom of the welding groove of the brass adapter 300, thereby causing the tin liquid to flow into the opening of the spring tube 200 and block the opening of the spring tube 200. At the same time, when the top plate 102 is fully inserted into the opening of the spring tube 200, the first moving block 3 drives the relevant parts to continue to move to the left, so that the top plate 102 Continue to insert the spring tube 200 into the opening. Since the four sides of the rear side of the top plate 102 are all inclined and present an isosceles trapezoidal structure, when the top plate 102 is inserted further into the opening of the spring tube 200, the opening of the spring tube 200 will be squeezed by the top plate 102, so that the opening edge of the spring tube 200 is stretched open by the top plate 102. At this time, the opening of the spring tube 200 is trumpet-shaped, so that the opening of the spring tube 200 is more closely fitted to the bottom of the welding groove of the brass adapter 300, further avoiding the problem of tin liquid flowing into the opening of the spring tube 200. After the grinding and deformation of the opening of the spring tube 200 are completed, the spring tube 200 and the brass adapter 300 are placed on the fixture 7 by the manipulator 8, and the spring tube 200 is adsorbed by the electric suction cup 7e based on the view from front to back.At the same time, the second moving block 7d drives the electric suction cup 7e to rotate clockwise, inserting the open end of the spring tube 200 into the welding groove of the brass adapter 300, such as, Fig. 9 shown.

[0034] On the basis of Example 1, Figure 1-Figure 2 and Figure 4-Figure 5 As shown, it also includes a welding assembly; the welding assembly includes a second push rod 105, a fixing ring 106, an L-shaped plate 107, a second connecting plate 108, a containing frame 109, a second spring 1010, a baffle 1011, a round tube 1012, a first spring 1013 and a push rod 1014; the second push rod 105 is fixedly connected to the upper part of the electric welding machine 5; the telescopic part of the second push rod 105 is fixedly connected to the fixing ring 106, and the fixing ring 106 is slidably connected to the electric welding machine 5; two symmetrically distributed first springs 1013 are fixedly connected to the bottom of the fixing ring 106; each first spring 1013 is fixedly connected to a push rod 1014, each push rod 1014 is provided with a convex portion 1014a on the upper part, and each push rod 1014 is slidably connected to the fixing ring 106; two L-shaped plates 107 are fixedly connected to the front side of the bottom of the electric welding machine 5; each L-shaped plate 107 is rotatably connected to a second connecting Plate 108, all the second connecting plates 108 are provided with an oblique angle 108a on the opposite side, the heating part of the electric welder 5 is provided with two heat-conducting pipes 5a, and each heat-conducting pipe 5a is connected to the corresponding second connecting plate 108, the second connecting plate 108 is a heat-conducting material, and the heat is transferred to the second connecting plate 108 through the heat-conducting pipe 5a; each second connecting plate 108 is fixedly connected to a containing frame 109, and after the second connecting plate 108 is heated, the heat is transferred to the corresponding containing frame 109; a second spring 1010 is fixedly connected to the rear side of each containing frame 109; each second spring 1010 is fixedly connected to a baffle 1011, and the baffle 1011 is provided with a plurality of circular holes 1011a, and each baffle 1011 passes through the containing frame 109; six circular tubes 1012 are fixedly connected and connected to the bottom of each containing frame 109, and the circular holes 1011a are indirectly distributed with the circular tubes 1012.

[0035] A first inclined surface 109 a is provided on the front side of each receiving frame 109 . The molten tin in each receiving frame 109 is evenly distributed by vertically placing the middle of the tin bar on the first inclined surface 109 a and heating and melting it.

[0036] Here is how the above example works:

[0037] Before welding the spring tube 200 and the brass adapter 300, start the electric welder 5 to preheat the second connecting plate 108 and the containing frame 109 to a specified temperature. When the open end of the spring tube 200 is inserted into the welding groove of the brass adapter 300 and fixed by the clamp 7, it is necessary to weld and seal the connection between the open end of the spring tube 200 and the brass adapter 300. In the prior art, during welding, in order to improve efficiency, only one side of the connection between the open end of the spring tube 200 and the brass adapter 300 is welded. This method will cause the sealing of the connection between the open end of the spring tube 200 and the brass adapter 300 to decrease, thereby causing the problem of reduced product quality. Therefore, the first moving block 3 is used to drive the relevant components to move to the left, so that The welding part of the spring tube 200 and the brass adapter 300 is directly opposite to the joint of the two accommodating frames 109. Then, the second push rod 105 pushes the fixing ring 106 downward, and the fixing ring 106 pushes the first spring 1013 and the push rod 1014 downward, so that the push rod 1014 pushes the bevel 108a, and the two accommodating frames 109 rotate in opposite directions based on the view from top to bottom. Then, the first push rod 9 pushes the first motor 4 and the parts connected to it to move backward, so that the spring tube 200 is located between the two accommodating frames 109. Then, the second push rod 105 pulls the fixing ring 106 to reset, thereby driving the parts related to the fixing ring 106 to reset, so that the bevel 108a loses the thrust of the push rod 1014, and then through the torque The spring drives the second connecting plate 108 to reset, so that the accommodating frame 109 clamps the spring tube 200, and then the lifting bracket 3a drives the accommodating frame 109 to move downward. At this time, the accommodating frame 109 makes the welding position of the spring tube 200 and the brass adapter 300 vertical, which is convenient for the round tube 1012 to be inserted into the welding groove of the brass adapter 300. Then, the tin bar is vertically clamped by the manipulator 8, and the middle part of the tin bar is placed on the first inclined surface 109a. At this time, the accommodating frame 109 has heat, so the tin bar is melted through the first inclined surface 109a, and the molten tin liquid will be evenly distributed in the two accommodating frames 109, avoiding the problem of uneven distribution of tin liquid on both sides of the welding position of the spring tube 200 and the brass adapter 300, which leads to an unreliable welding position. At the same time, since the welding groove of the brass adapter 300 has a certain depth, but the tin liquid is injected from top to bottom, the tin liquid will be blocked by the outer side of the spring tube 200 and the welding groove of the brass adapter 300, which further leads to uneven distribution of the tin liquid in the welding groove of the brass adapter 300, and the welding of the spring tube 200 and the brass adapter 300 is not firm, which affects the product quality. Therefore, the first push rod 9 pushes the accommodating frame 109 to move toward the clamp 7, so that the baffle 1011 is squeezed by the clamp 7. At this time, the second spring 1010 contracts, and the baffle 1011 moves to align the circular hole 1011a with the circular tube 1012, so that the tin liquid flows into the bottom of the welding groove of the brass adapter 300 through the circular tube 1012. At the same time,The lifting bracket 3a drives the round tube 1012 to move upward, so that the tin liquid fills upward from the inner bottom of the welding groove, making the connection between the spring tube 200 and the brass adapter 300 more stable, and making it less likely to produce holes in the welding part, which will cause the problem of air leakage in the welding part. After the welding of the spring tube 200 and the brass adapter 300 is completed, the lifting bracket 3a drives the relevant parts to move upward, and at the same time, the second push rod 105 pushes the first spring 1013 and the push rod 1014 to move downward, so that the second connecting plate 108 drives the receiving frame 109 to rotate and open, and then the first push rod 9 drives the relevant parts to move forward and reset, so that the receiving frame 109 is away from the spring tube 200, and the welding operation is completed.

[0038] It should be noted that after the spring tube 200 and the brass adapter 300 are welded, the robot 8 transfers the welded spring tube 200 and the brass adapter 300 so that the welded spring tube 200 and the brass adapter 300 can be transferred to the next step.

[0039] On the basis of Example 2, Figure 1-Figure 2 and Figure 5-Figure 8 As shown, it also includes a melting component; the melting component includes a scraping unit, a sharp cone 205 and a surface removal unit; three sharp cones 205 are fixedly connected to the side of the bottom of each containing frame 109 facing away from the center of the electric welder 5, and the solidified tin liquid is heated and melted by the sharp cone 205, and the molten tin liquid is drained into the containing frame 109; the electric welder 5 is connected to a scraping unit for scraping off the residual tin liquid in the groove of the brass adapter 300; the clamp 7 is connected to a surface removal unit for removing the residual tin liquid on the outer surface of the spring tube 200.

[0040] The scraping unit includes a fixed rod 201, a connecting column 202, an arc-shaped collecting frame 203 and a rope 204; the fixed rod 201 is fixedly connected to the front side of the electric welding machine 5; the connecting column 202 is fixedly connected to the bottom of the fixed rod 201, and the connecting column 202 has a heating tube built in; an arc-shaped collecting frame 203 is fixedly connected to the left and right sides of the connecting column 202, and a plug is provided at the bottom of each arc-shaped collecting frame 203; each arc-shaped collecting frame 203 is fixedly connected to a rope 204, and each rope 204 passes through the connecting column 202 and is fixedly connected to the front side of the fixed ring 106.

[0041] The arc-shaped collecting frame 203 is arranged in an arc shape and is elastic. The arc-shaped arrangement enables the arc-shaped collecting frame 203 to fit more closely to the inner wall of the groove of the brass adapter 300 , thereby improving the scraping effect of the arc-shaped collecting frame 203 .

[0042] An arc-shaped groove 203a is formed on the upper part of the arc-shaped collecting frame 203, and a collecting chamber 203b is formed inside the arc-shaped collecting frame 203. The arc-shaped groove 203a gathers the tin liquid, so that the collecting chamber 203b can collect the tin liquid more easily.

[0043] The surface removal unit includes a third connecting plate 301, a third spring 302, a scraper 303, a round rod 304 and a protruding rod 305; five cavities 7f are provided in each support ring 7a; a third connecting plate 301 is fixedly connected in each cavity 7f; a third spring 302 is fixedly connected to each third connecting plate 301; a scraper 303 is fixedly connected to one end of each third spring 302 away from the third connecting plate 301, and the scraper 303 is made of aluminum plate, and a connecting block 303a is provided on the left side of each scraper 303, and a second inclined surface 303b is provided on the left side of each connecting block 303a; the support ring 7a is slidably connected to five round rods 304, and each round rod 304 passes through the support ring 7a and contacts with the corresponding second inclined surface 303b.

[0044] It also includes a protruding rod 305 ; five protruding rods 305 are fixedly connected to the inside of the support ring 7a , each protruding rod 305 is located above the corresponding connecting block 303a , each protruding rod 305 passes through the scraper 303 , and is slidably connected to the scraper 303 .

[0045] Here is how the above example works:

[0046] After the spring tube 200 and the brass adapter 300 are welded together, it is necessary to detect whether the air tightness of the spring tube 200 and the brass adapter 300 meets the standard. If the test is passed, the welding operation is completed. If it is detected that the air tightness of the spring tube 200 and the brass adapter 300 does not meet the standard, the spring tube 200 and the brass adapter 300 need to be re-welded. The prior art is to directly add tin liquid to the original welding part, which will cause too much tin liquid in the welding part, thereby limiting the bending part of the spring tube 200. The accuracy of the spring tube 200 during operation is reduced. Therefore, when it is detected that the air tightness of the welding part is not up to standard, the manipulator 8 will put the substandard spring tube 200 and the brass tube adapter back to the support ring 7a and the support seat 7b, and then drive the electric suction cup 7e to absorb and fix the spring tube 200 through the second moving block 7d. Based on the view from the front to the back, the second motor 6 drives the fixture 7 and its related parts to rotate 180 degrees counterclockwise, so that the welded spring tube 200 and the brass tube adapter are inverted;

[0047] Then, the first moving block 3 drives the related parts to move to the left, so that the accommodating frame 109 is opposite to the welding position of the spring tube 200 and the brass tube adapter, and then the first push rod 9 pushes the first motor 4 and the parts connected thereto to move backward, and at the same time, the second push rod 105 pushes the bevel 108a downward, so that the two accommodating frames 109 rotate in opposite directions, and then the first push rod 9 pushes the first motor 4 and the parts connected thereto to move backward, so that the welding position of the spring tube 200 and the brass tube adapter is between the two accommodating frames 109, and then the second push rod 105 pulls the fixing ring 106 upward, so that the first spring 1013 and the top rod 1014 move upward away from The bevel 108a enables the torsion spring to drive the two second connecting plates 108 and the receiving frame 109 to rotate and reset, so that the receiving frame 109 clamps the spring tube 200. At the same time, the lifting bracket 3a moves upward, driving the receiving frame 109 to move upward. Because the torsion spring always drives the receiving frame 109 to fit the surface of the spring tube 200, when the receiving frame 109 moves upward, the spring tube 200 is pulled from a curved shape to a vertical shape through the receiving frame 109. At the same time, the pointed cone 205 contacts the welding part of the spring tube 200 and the brass tube adapter, so that the solidified tin liquid is heated and melted, and is redirected back into the receiving frame 109 through the pointed cone 205, so that the tin liquid is reused;

[0048] When the solidified tin liquid melts and flows into the containing frame 109, there will be tin liquid residue on the outer side of the spring tube 200 and the inner wall of the welding groove of the brass adapter 300. The residual tin liquid will flow downward due to gravity, so that the residual tin liquid will produce various shapes after hardening. When the subsequent tin liquid is filled, it will be blocked by the residual tin liquid, resulting in incomplete filling of the tin liquid, which will lead to holes in the welding part, resulting in the problem of substandard airtightness.

[0049] Therefore, it is necessary to clean the residual tin liquid on the outer side of the spring tube 200 and the inner wall of the welding groove of the brass adapter 300, and the second moving block 7d drives the spring tube 200 to rotate counterclockwise through the electric suction cup 7e to pull out the welding end of the spring tube 200. At this time, the round rod 304 is in a contracted and compressed state, and the round rod 304 squeezes the connecting block 303a to push the scraper 303 to move to the right, and the third spring 302 is stretched by the scraper 303. When the second moving block 7d drives the spring tube 200 to rotate through the electric suction cup 7e and passes through the scraper 303, the tin liquid on the surface of the spring tube 200 will be scraped off by the scraper 303, thereby realizing the cleaning operation of the residual tin liquid on the outer side of the spring tube 200. However, since the tin liquid on the surface of the spring tube 200 is in a The scraper 303 is in an incompletely solidified state, so the scraped tin liquid will solidify on the surface of the scraper 303, which will affect the subsequent use of the scraper 303. When the second moving block 7d rotates the open end of the spring tube 200 away from the round rod 304 through the electric suction cup 7e, the round rod 304 loses the squeezing of the spring tube 200, and the third spring 302 pulls the scraper 303 and the connecting block 303a to shrink and reset, so that the connecting block 303a squeezes the round rod 304 to reset upward. During the resetting and retraction process of the scraper 303, the protruding rod 305 will pass through the scraper 303, so that the solidified tin liquid on the scraper 303 will be pushed out by the protruding rod 305, and the pushed out tin liquid will fall due to gravity, thereby preventing the tin liquid from gathering on the surface of the scraper 303 and affecting the subsequent use of the scraper 303.

[0050] Subsequently, the lifting bracket 3a drives the related parts to move downward, so that the pointed cone 205 leaves the welding groove of the brass adapter 300, and then drives the parts connected to the telescopic part to move forward a proper distance through the first push rod 9, and the first motor 4 rotates 180 degrees clockwise, and then pushes the first motor 4 and the parts connected to it backward through the first push rod 9, so that the connecting column 202 and the arc-shaped collection frame 203 move to the bottom of the welding groove of the brass adapter 300, and then drives the connecting column 202 and the arc-shaped collection frame 203 to move upward through the lifting bracket 3a, so that the connecting column 202 and the arc-shaped collection frame 203 enter the welding groove of the brass adapter 300, and at the same time, the connecting column 202 heats the arc-shaped collection frame 203 through the built-in heating tube, and during the entry process, the arc groove 203a will contact the brass adapter The arc collecting frame 203 contacts the residual tin liquid on the inner wall of the welding groove of the brass adapter 300, melts the contacted tin liquid through the arc collecting frame 203, and scrapes upward at the same time, so that the tin liquid flows from the arc groove 203a into the collecting chamber 203b. When the arc groove 203a contacts the bottom of the welding groove of the brass adapter 300, the second push rod 105 pulls the fixing ring 106 upward, so that the fixing ring 106 pulls the rope 204, so that the rope 204 pulls the arc collecting frame 203 to converge toward the center of the welding groove of the brass adapter 300, so that the residual tin liquid at the bottom of the welding groove of the brass adapter 300 is also scraped into the arc groove 203a, and then flows from the arc groove 203a to the collecting chamber 203b, thereby realizing the cleaning operation of the residual tin liquid on the inner wall of the welding groove of the brass adapter 300, and collecting the residual tin liquid at the same time to avoid waste;

[0051] When all the residual tin liquid in the welding groove of the spring tube 200 and the brass adapter 300 is cleared, the second moving block 7d drives the spring tube 200 to rotate through the electric suction cup 7e, so that the open end of the spring tube 200 is inserted into the welding groove of the brass adapter 300 again, and then the spring tube 200 and the brass tube adapter are welded again through the welding assembly to complete the secondary repair welding operation, thereby avoiding excessive tin liquid in the welding part, which in turn leads to the bending part of the spring tube 200 being limited, resulting in a decrease in the accuracy of the spring tube 200 during operation. When the tin liquid in the collecting chamber 203b needs to be discharged, the heating tube in the connecting column 202 is used to heat and melt the solidified tin liquid, and then the plug at the bottom is opened to discharge the tin liquid.

[0052] Although the present invention is described in detail with reference to the above embodiments, it is obvious to those skilled in the art through this disclosure that various changes or modifications may be made to the present invention without departing from the principle and spirit of the present invention defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, not to limit the present invention, but the scope of protection is limited by the content of the claims.

Claims

1. An automated welding device for producing a pressure gauge, comprising a first connecting plate (1), a first guide rail (2), a first moving block (3), a first motor (4), an electric welder (5), a second motor (6), a clamp (7), a manipulator (8) and a first push rod (9); the first connecting plate (1) is fixedly connected to the first guide rail (2); the first guide rail (2) is slidably connected to the first moving block (3), and a lifting bracket (3a) is provided on the upper part of the first moving block (3); the lifting bracket (3a) is fixedly connected to the first push rod (9); the telescopic part of the first push rod (9) is fixedly connected to the first motor (4); the rotating part of the first motor (4) is fixedly connected to the electric welder (5); the first connecting plate (1) is fixedly connected to the first guide rail (2); the first moving block (3) is slidably connected to the first guide rail (2), and a lifting bracket (3a) is provided on the upper part of the first moving block (3); the lifting bracket (3a) is fixedly connected to the first push rod (9); the telescopic part of the first push rod (9) is fixedly connected to the first motor (4); the rotating part of the first motor (4) is fixedly connected to the electric welder (5); A second motor (6) is fixedly connected to the rear side of the plate (1); a fixture (7) is fixedly connected to the rotating part of the second motor (6); the fixture (7) is composed of a plurality of support rings (7a), a support seat (7b), a second guide rail (7c), a second moving block (7d) and an electric suction cup (7e); the upper support ring (7a) is shorter than the lower support ring (7a); a support seat (7b) is provided on the right side of the fixture (7); the fixture (7) is fixedly connected to the second guide rail (7c); the second guide rail (7c) is slidably connected to the second moving block (7d); the second moving block (7d) is fixedly connected to the electric suction cup (7e); a manipulator (8) is fixedly connected to the first connecting plate (1); the characteristics are: It also includes a connecting ring (101), a top plate (102), a top head (103) and a grinding sheet (104); the electric welding machine (5) is fixedly connected to the connecting ring (101); the connecting ring (101) is fixedly connected to the top plate (102); the four sides of the rear side of the top plate (102) are all inclined to form an isosceles trapezoidal structure; the right side of the top plate (102) is fixedly connected to the top head (103); the outer surface of the top head (103) is set as a rough surface; the diameter of the fixed part of the top head (103) is the same as the opening width of the spring tube (200); the upper side and the lower side of the top plate (102) are fixedly connected to the grinding sheet (104); The device also includes a fixing assembly; the fixing assembly includes a second push rod (105), a fixing ring (106), an L-shaped plate (107), a second connecting plate (108), a containing frame (109), a second spring (1010), a baffle (1011), a round tube (1012), a first spring (1013) and a push rod (1014); the second push rod (105) is fixedly connected to the upper part of the electric welding machine (5); the telescopic part of the second push rod (105) is fixedly connected to the fixing ring ( 106), the fixing ring (106) is slidably connected to the electric welding machine (5); a plurality of first springs (1013) are fixedly connected to the bottom of the fixing ring (106); each first spring (1013) is fixedly connected to a push rod (1014), each push rod (1014) is provided with a convex portion (1014a) on the upper portion, and each push rod (1014) is slidably connected to the fixing ring (106); a plurality of L-shaped plates (107) are fixedly connected to the front side of the bottom of the electric welding machine (5) ); each L-shaped plate (107) is rotatably connected to a second connecting plate (108); opposite sides of all second connecting plates (108) are provided with an oblique angle (108a); the heating part of the electric welding machine (5) is provided with a plurality of heat-conducting pipes (5a), and each heat-conducting pipe (5a) is connected to a corresponding second connecting plate (108); the second connecting plate (108) is made of a heat-conducting material; each second connecting plate (108) is fixedly connected to a containing frame (109); each A second spring (1010) is fixedly connected to the rear side of the containing frame (109); each second spring (1010) is fixedly connected to a baffle (1011), the baffle (1011) is provided with a plurality of circular holes (1011a), and each baffle (1011) penetrates the containing frame (109); a plurality of circular tubes (1012) are fixedly connected to and communicated with the bottom of each containing frame (109), and the circular holes (1011a) and the circular tubes (1012) are indirectly distributed; It also includes a melting assembly; the melting assembly includes a scraping unit, a pointed cone (205) and a surface removal unit; a plurality of pointed cones (205) are fixedly connected to a side of the bottom of each containing frame (109) facing away from the center of the electric welder (5); the electric welder (5) is connected to a scraping unit for scraping residual tin liquid in the groove of the brass adapter (300); the clamp (7) is connected to a surface removal unit for removing residual tin liquid on the outer surface of the spring tube (200); The scraping unit comprises a fixed rod (201), a connecting column (202), an arc-shaped collecting frame (203) and a rope (204); the front side of the electric welder (5) is fixedly connected to the fixed rod (201); the bottom of the fixed rod (201) is fixedly connected to the connecting column (202), and a heating tube is built in the connecting column (202); an arc-shaped collecting frame (203) is fixedly connected to the left and right sides of the connecting column (202), and a plug is provided at the bottom of each arc-shaped collecting frame (203); each arc-shaped collecting frame (203) is fixedly connected to a rope (204), and each rope (204) passes through the connecting column (202) and is fixedly connected to the front side of the fixing ring (106); The surface removal unit comprises a third connecting plate (301), a third spring (302), a scraper (303), a round rod (304) and a protruding rod (305); a plurality of cavities (7f) are provided in each support ring (7a); a third connecting plate (301) is fixedly connected in each cavity (7f); a third connecting plate (301) is fixedly connected to each third connecting plate (301); a scraper (303) is fixedly connected to one end of each third spring (302) away from the third connecting plate (301); the scraper (303) is made of an aluminum plate; a connecting block (303a) is provided on the left side of each scraper (303); a second inclined surface (303b) is provided on the left side of each connecting block (303a); the support ring (7a) is slidably connected to a plurality of round rods (304), and each round rod (304) passes through the support ring (7a) and contacts the corresponding second inclined surface (303b).

2. The automatic welding equipment for pressure gauge production according to claim 1 is characterized in that: The plug (103) is arranged in a conical shape, and the tip portion of the plug (103) is deformable.

3. The automatic welding equipment for pressure gauge production according to claim 1 is characterized in that: The grinding sheet (104) is arranged in an arc shape, with a convex surface facing the rear side, and is deformable.

4. The automatic welding equipment for pressure gauge production according to claim 1 is characterized in that: A first inclined surface (109a) is provided on the front side of each containing frame (109).

5. The automatic welding equipment for pressure gauge production according to claim 1 is characterized in that: The arc-shaped collecting frame (203) is arranged in an arc shape, and the arc-shaped collecting frame (203) is elastic.

6. The automatic welding equipment for pressure gauge production according to claim 1 is characterized in that: It also includes a protruding rod (305); a plurality of protruding rods (305) are fixedly connected inside the support ring (7a); each protruding rod (305) is located above a corresponding connecting block (303a); each protruding rod (305) penetrates the scraper (303) and is slidably connected to the scraper (303).

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