Electromagnetic induction welding apparatus

Abstract

The application discloses an electromagnetic induction welding equipment, which has a magnetic induction coil for welding, a first flange of a workpiece A is clamped between two first clamping blocks, coaxially arranged first and second groove bases are used for mounting a work pipe B, a clamping rod with one end located inside a through groove is elastically connected with a left and a right fixed rod through elastic members, the other end of the clamping rod is located on both sides of an annular groove of the workpiece A, a first and a second pin are inserted into a first and a second through hole respectively through one end of an upper pressing block, a spring sleeved on the outer wall of the second pin is arranged between the pin cap and the upper pressing block, and the other end of the upper pressing block is pressed on the top of the first flange when a cover plate is buckled with a base. The electromagnetic induction welding equipment can fix the workpiece in multiple directions on the basis of realizing preliminary positioning of the workpiece, thereby greatly improving the position precision of the workpiece and improving the overall welding effect.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of electromagnetic induction welding equipment, belong to precision parts processing technical field. BACKGROUND

[0002] In the processing production, the pipe fittings and connecting pieces need to be welded and assembled. The traditional welding method is to use argon arc welding, its main shortcomings: 1, harmful to human body, a large amount of ozone and nitrogen oxides will be produced in the welding process, these substances have a great impact on the human body, especially on the respiratory tract, lung damage; In addition, the welding process will emit radioactive gas or particles, these particles into the human body as internal radiation source, seriously affect human life; 2, not environmentally friendly, welding process produces welding dust, causing environmental pollution; 3, there are security risks, a little carelessness will cause electric arc burn when welding, also need to pay attention to prevent fire, electric shock and other security risks.

[0003] At present, for the plastic metal composite pipe formed by extrusion molding of thermoplastic plastic, mechanical connection and hot melt connection are generally used in the installation of pipe fittings. In the hot melt connection method, an effective and controllable method is to use electromagnetic induction welding. That is, the composite pipe containing a magnetic metal layer is inserted into the receiving end of the thermoplastic plastic connecting piece, and the magnetic metal layer of the composite pipe is controllably heated and fused to the receiving end of the thermoplastic plastic connecting piece through the electromagnetic induction generating device. In this way, the plastic is indirectly heated and melted to become one, achieving the purpose of hot melt connection of the composite pipe and the connecting piece. In the prior art, when welding two workpieces, the position of the workpiece is easy to deviate, resulting in poor welding effect. SUMMARY

[0004] The purpose of the present application is to provide an electromagnetic induction welding device that can fix the workpiece from multiple directions based on the preliminary positioning of the workpiece, thereby greatly improving the position accuracy of the workpiece and improving the overall welding effect.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present application is: an induction welding device for electromagnetic induction welding between a workpiece A and a pipe fitting B, comprising: an induction welding device, a conveying platform and a positioning jig, the conveying platform with the positioning jig mounted thereon is located on one side of the induction welding device, the induction welding device has a magnetic induction coil for welding, the conveying platform is used to convey the positioning jig, the workpiece A with a communicating cavity in the inside has a ring groove at one end close to the pipe fitting B, and a first flange and a second flange are respectively arranged on the front and rear sides of the ring groove.

[0006] The positioning jig further comprises a base, a positioning base and a base plate, the positioning base and the base plate are respectively installed on the top of the base connected with the conveying platform, the positioning base located at the front end of the base plate has an extension platform, a first clamping block is arranged on the top of the extension platform at both sides near the magnetic induction coil, the first flange of the processing part A is clamped between the two first clamping blocks, a first groove seat is arranged on the top of the base plate along the length direction, a second groove seat is arranged between the first clamping block and the first groove seat, and the first groove seat and the second groove seat are coaxially arranged to install the processing pipe B.

[0007] A second clamping block is arranged between the second groove seat and the first clamping block, a left fixed rod and a right fixed rod are arranged on the side of the positioning base close to the base plate, a limiting block with a through groove is installed on the top of the positioning base and is symmetrically arranged with respect to the processing pipe B, a clamping rod with one end located in the through groove is elastically connected with the left fixed rod and the right fixed rod through elastic elements, and the other end of the clamping rod is located on both sides of the annular groove of the processing part A, so that the second flange thereof is clamped with the second clamping block.

[0008] A fixed plate with a cover plate rotatably connected at the upper end is installed on one side of the base, the side away from the fixed plate of the cover plate can be buckled and connected with the base, the first through hole and the second through hole are formed in the top of the cover plate, the line between the first through hole and the second through hole is parallel to the length direction of the processing pipe B, an upper pressing block is arranged above the positioning base, a first pin and a second pin pass through one end of the upper pressing block and are correspondingly embedded in the first through hole and the second through hole, the top end of the second pin has a pin cap, a spring sleeved on the outer wall of the second pin is arranged between the pin cap and the upper pressing block, and when the cover plate is buckled with the base, the other end of the upper pressing block is pressed on the top of the first flange.

[0009] The further improved scheme in the above technical scheme is as follows:

[0010] 1. In the above scheme, a sliding groove is formed on the end of the base plate away from the positioning base, a partition plate with a third through hole is arranged between the sliding groove and the first groove seat, the sliding groove is slidably connected with a sliding block with an air needle, the air needle for filling protective gas can extend into the inside of the processing pipe B through the third through hole of the partition plate, and the side opposite to the air needle of the sliding block is connected with an air source.

[0011] 2. In the above scheme, a stop block is installed on the rear end face of the base plate.

[0012] 3. In the above scheme, when the sliding block is in contact with the stop block, the end of the air needle away from the sliding block is located in the through hole.

[0013] 4. In the above scheme, the first pin and the second pin are chamfered pins.

[0014] 5. The first pin, the second pin, the first pin edge plane and the second pin edge plane are perpendicular to each other.

[0015] 6. The first stop screw is embedded in the front end face of the cover plate and abuts against the first pin in the first through hole, and the second stop screw is embedded in the side end face of the cover plate and abuts against the second pin in the second through hole.

[0016] 7. The second clamping block and the second groove seat are provided with a containing groove for detachably mounting a positioning clamp block.

[0017] 8. The surface of the induction welding device is provided with a display screen and a control panel with buttons, and the display screen is used to display the working state of the induction welding device and the conveying platform.

[0018] 9. The first groove seat and the second groove seat are V-shaped groove seats.

[0019] Due to the use of the above technical solutions, the present application has the following advantages compared with the prior art:

[0020] 1. The electromagnetic induction welding device is provided with a left fixed rod and a right fixed rod on the side of the positioning base close to the base plate, a clamping rod with one end in the through groove is elastically connected to the left fixed rod and the right fixed rod through elastic members, the other end of the clamping rod is located on both sides of the workpiece A, thereby clamping the workpiece A and the second clamping block, the side of the cover plate away from the fixed plate can be connected with the base, the first pin and the second pin pass through one end of the upper pressing block and correspondingly embed in the first through hole and the second through hole, the top end of the second pin is provided with a pin cap, a spring sleeved on the outer wall of the second pin is arranged between the pin cap and the upper pressing block, when the cover plate is buckled with the base, the other end of the upper pressing block is pressed on the top of the workpiece A, the preliminary positioning of the workpiece B is realized through the first groove seat and the second groove seat, the preliminary fixing of the workpiece A is realized through the first clamping block, the workpiece A can be clamped with the second clamping block from both sides through the clamping rod, the workpiece A can be pressed tightly through the upper pressing block, and the workpiece B can be tightly held with the first groove seat and the second groove seat through the cover plate, thereby greatly improving the position accuracy of the workpiece A and the workpiece B and improving the overall welding effect.

[0021] 2. The electromagnetic induction welding device is provided with a sliding block with an air needle connected with the sliding groove, the air needle for filling protective gas can pass through the through hole of the partition plate and extend into the inside of the workpiece B, thereby the protective gas can be filled into the workpiece B while the workpiece A and the workpiece B are welded, the welding part is prevented from contacting with the external air, the situation of welding defects caused by oxidation of the welding part is effectively reduced, and the welding quality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of the electromagnetic induction welding device of the present application; Figure 1 Figure 1 is a schematic diagram of the overall structure of the electromagnetic induction welding device of the present application;

[0023] Figure 1 is a schematic diagram of the overall structure of the electromagnetic induction welding device of the present application; Figure 2 Figure 1 is a schematic diagram of the overall structure of the electromagnetic induction welding device of the present application;

[0024] Figure 1 is a schematic diagram of the overall structure of the electromagnetic induction welding device of the present application; Figure 3 Figure 1 is a schematic diagram of the overall structure of the electromagnetic induction welding device of the present application; Figure 1 Figure 1 is a schematic diagram of the overall structure of the electromagnetic induction welding device of the present application;

[0025] Figure 1 is a schematic diagram of the overall structure of the electromagnetic induction welding device of the present application; Figure 4 Figure 1 is a schematic diagram of the overall structure of the electromagnetic induction welding device of the present application;

[0026] Figure 1 is a schematic diagram of the overall structure of the electromagnetic induction welding device of the present application. Figure 5 Figure 1 is a schematic diagram of the overall structure of the electromagnetic induction welding device of the present application.

[0027] In the above figures: 100, workpiece A; 101, communication cavity; 102, annular groove; 103, first flange; 104, second flange; 200, workpiece B; 1, induction welding device; 2, magnetic induction coil; 3, conveying platform; 4, positioning jig; 5, base; 6, positioning base; 601, extension table; 7, base plate; 8, first groove seat; 9, first clamping block; 10, second groove seat; 11, second clamping block; 12, left fixed rod; 13, right fixed rod; 14, limiting block; 141, through groove; 15, clamping rod; 16, elastic member; 17, fixed plate; 18, cover plate; 19, first through hole; 20, second through hole; 21, upper pressing block; 22, first pin; 23, second pin; 24, pin cap; 25, spring; 26, sliding groove; 27, partition plate; 28, third through hole; 29, sliding block; 30, air needle; 31, stop block; 32, first stop screw; 34, accommodating groove; 35, positioning clamping block; 36, pressing plate; 37, limiting groove; 38, buckle; 39, push block; 40, display screen; 41, control panel. DETAILED DESCRIPTION

[0028] The present patent can be further understood from the specific examples given below, which are not limitations of the present patent.

[0029] Example 1: An electromagnetic induction welding device for electromagnetic induction welding between workpiece A 100 and workpiece B 200, comprising: an induction welding device 1, a conveying platform 3, and a positioning jig 4, wherein the conveying platform 3 provided with the positioning jig 4 is located on one side of the induction welding device 1;

[0030] The induction welding device 1 has a magnetic induction coil 2 for welding, the conveying platform 3 is used for conveying the positioning jig 4, the processing piece A100 with the communicating cavity 101 has an annular groove 102 at one end close to the processing pipe B200, and a first flange 103 and a second flange 104 are arranged on the front and back sides of the annular groove 102 respectively;

[0031] The positioning jig 4 further comprises a base 5, a positioning base 6 and a base plate 7, the positioning base 6 and the base plate 7 are arranged on the top of the base 5 connected with the conveying platform 3 respectively, and the positioning base 6 at the front end of the base plate 7 has an extension table 601;

[0032] A first clamping block 9 is arranged on the top of the extension table 601 at the side close to the magnetic induction coil 2, the first flange 103 of the processing piece A100 is clamped between the two first clamping blocks 9, a first groove seat 8 is arranged on the top of the base plate 7 along the length direction, a second groove seat 10 is arranged between the first clamping block 9 and the first groove seat 8, and the first groove seat 8 and the second groove seat 10 are coaxially arranged to be used for mounting the processing pipe B200;

[0033] A second clamping block 11 is arranged between the second groove seat 10 and the first clamping block 9, a left fixed rod 12 and a right fixed rod 13 are arranged on the side of the positioning base 6 close to the base plate 7, and a limiting block 14 with a through groove 141 is arranged on the top of the positioning base 6 and is symmetrically arranged with respect to the processing pipe B200;

[0034] A clamping rod 15 at one end arranged in the through groove 141 is elastically connected with the left fixed rod 12 and the right fixed rod 13 through an elastic element 16, and the other end of the clamping rod 15 is arranged on the two sides of the annular groove 102 of the processing piece A100, so that the second flange 104 and the second clamping block 11 are clamped;

[0035] In use, the cover plate 18 is opened, the processing pipe B200 and the processing piece A100 are inserted in advance, then the clamping rod 15 is stretched, so that the processing piece A100 can be clamped on the first clamping block 9, the processing pipe B200 is placed on the first groove seat 8 and the second groove seat 10 in parallel with the front end surface of the partition plate 27, then the clamping rod 15 is loosened, so that the clamping rod 15 clamps the processing piece A100 and the second clamping block 11, and the position stability of the processing piece A100 is improved;

[0036] A fixed plate 17 with the cover plate 18 rotatably connected at the upper end is arranged on one side of the base 5, the side away from the fixed plate 17 of the cover plate 18 is buckled and connected with the base 5, the first through hole 19 and the second through hole 20 are arranged on the top of the cover plate 18, the line between the first through hole 19 and the second through hole 20 is parallel to the length direction of the processing pipe B200, and an upper pressing block 21 is arranged above the positioning base 6;

[0037] A first pin 22 and a second pin 23 pass through one end of the upper pressing block 21 and correspondingly embed into the first through hole 19 and the second through hole 20, the top end of the second pin 23 is provided with a pin cap 24, a spring 25 sleeved on the outer wall of the second pin 23 is arranged between the pin cap 24 and the upper pressing block 21, when the cover plate 18 is buckled with the base 5, the other end of the upper pressing block 21 is pressed on the top of the first flange 103.

[0038] The first pin 22 and the second pin 23 with the mutually perpendicular chamfered planes fix the upper pressing block 21 on the cover plate 18, so that one end of the upper pressing block 21 is pressed on the top of the first flange 103, and the other end of the upper pressing block 21 is kept in pressure with the top end of the cover plate 18 under the elastic force of the spring 25, thereby effectively avoiding the warping of the upper pressing block 21, when adjusting the up and down movement of the upper pressing block 21, the upper pressing block 21 can be kept on the same straight line, the position accuracy of the upper pressing block is improved, and the pressing force of the upper pressing block 21 on the workpiece A is ensured.

[0039] A sliding groove 26 is arranged on the end of the base plate 7 away from the positioning base 5 and on the upper surface of the end, a partition plate 27 with a third through hole 28 is arranged between the sliding groove 26 and the first groove seat 8, the sliding groove 26 is slidably connected with a sliding block 29 with a gas needle 30, the gas needle 30 for filling protective gas can extend into the inside of the work pipe B 200 through the third through hole 28 of the partition plate 27, and the side of the sliding block 29 opposite to the gas needle 30 is connected with a gas source.

[0040] A stop block 31 is installed on the rear end surface of the base plate 7, when the sliding block 29 contacts with the stop block 31, the end of the gas needle 30 away from the sliding block 29 is located in the through hole 28.

[0041] The first pin 22 and the second pin 23 are chamfered pins, the chamfered planes of the first pin 22 and the second pin 23 are perpendicular to each other, a first stop screw 32 is embedded into the front end surface of the cover plate 18 and abuts against the first pin 22 located in the first through hole 19, and a second stop screw is embedded into the side end surface of the cover plate 18 and abuts against the second pin 23 located in the second through hole 20.

[0042] A containing groove 34 is arranged between the second clamping block 11 and the second groove seat 10, the containing groove 34 is used for detachably installing a positioning clamp block 35, the axial position of the work pipe B 200 can be adjusted through the positioning clamp block 35 with different heights, the coaxiality of the work pipe B 200 and the end surface of the communication cavity 101 is improved, and the welding effect is ensured.

[0043] The surface of the induction welding device 1 is provided with a display screen 40 and a control panel 41 with buttons, the display screen 40 is used for displaying the working state of the induction welding device 1 and the conveying platform 3.

[0044] When the workpiece A100 and the processing pipe B200 are installed on the positioning jig 4, the slider 29 with the air needle 30 is pushed forward, so that the air needle 30 is located inside the processing pipe B and is connected to the gas source, the protective gas is flushed out from the other end to discharge the external air, then the starting button on the control panel 41 is pressed, the transmission platform 3 drives the base to move forward, the extension table 601 on the positioning base 6 extends into the heating area of the magnetic induction coil 2, the workpiece A100 and the processing pipe B are heat fused, and the work is completed after a certain time. The positioning jig 4 is moved backward by the transmission platform 3, so that the extension table 601 exits the heating area of the magnetic induction coil 2.

[0045] The first groove seat 7 and the second groove seat 10 are V-shaped groove seats.

[0046] The bottom of the cover plate 10 is provided with a pressing plate 36 with a limiting groove 37; the cross section of the limiting groove 37 is semicircular; and the pressing plate 36 is a rubber pressing plate.

[0047] The diameter of the processing pipe B is 0.5mm.

[0048] Embodiment 2: An electromagnetic induction welding device for electromagnetic induction welding between a workpiece A100 and a processing pipe B200, comprising an induction welding device 1, a transmission platform 3 and a positioning jig 4, wherein the transmission platform 3 provided with the positioning jig 4 is located on one side of the induction welding device 1;

[0049] The induction welding device 1 has a magnetic induction coil 2 for welding, the transmission platform 3 is used for transmitting the positioning jig 4, the workpiece A100 with a communicating cavity 101 inside has a ring-shaped groove 102 at one end close to the processing pipe B200, and a first flange 103 and a second flange 104 are respectively arranged on the front and rear sides of the ring-shaped groove 102;

[0050] The positioning jig 4 further comprises a base 5, a positioning base 6 and a base plate 7, the positioning base 6 and the base plate 7 are respectively arranged on the top of the base 5 connected with the transmission platform 3, the positioning base 6 at the front end of the base plate 7 has an extension table 601, a first clamping block 9 is arranged on each side of the top of the extension table 601 close to the magnetic induction coil 2, the first flange 103 of the workpiece A100 is clamped between the two first clamping blocks 9, a first groove seat 8 is arranged on the top of the base plate 7 along the length direction, a second groove seat 10 is arranged between the first clamping block 9 and the first groove seat 8, and the first groove seat 8 and the second groove seat 10 are coaxially arranged for installing the processing pipe B200;

[0051] A second clamping block 11 is arranged between the second groove seat 10 and the first clamping block 9, a left fixing rod 12 and a right fixing rod 13 are arranged on the side of the positioning base 6 close to the base plate 7, a limiting block 14 with a through groove 141 is arranged on the top of the positioning base 6 and is symmetrically arranged with respect to the processing pipe B 200, a clamping rod 15 with one end arranged in the through groove 141 is elastically connected to the left fixing rod 12 and the right fixing rod 13 through an elastic element 16, and the other end of the clamping rod 15 is arranged on both sides of the annular groove 102 of the processing piece A 100, so as to clamp the second flange 104 of the processing piece A 100 and the second clamping block 11;

[0052] The position of the processing piece A and the processing pipe B can be fixed, the first groove seat and the second groove seat are used for preliminary positioning of the processing pipe B, and the clamping rod is used for clamping the processing piece A and the second clamping block, so that the position accuracy of the processing piece A is further improved, and the overall welding effect is improved.

[0053] A fixing plate 17 with a cover plate 18 rotatably connected to the upper end is arranged on one side of the base 5, the side of the cover plate 18 away from the fixing plate 17 is detachably connected to the base 5, and the top of the cover plate 18 is provided with a first through hole 19 and a second through hole 20, and the line between the first through hole 19 and the second through hole 20 is parallel to the length direction of the processing pipe B 200;

[0054] The cover plate 18 is rotatably pressed on the processing pipe B 200, the position of the processing pipe B 200 is adjusted, the processing pipe B 200 is located in the limiting groove 37 of the pressing plate 36, the cover plate 18 is detachably connected to the base 5 through the buckle 38, and the position stability of the processing pipe B 200 is improved.

[0055] A first pin 22 and a second pin 23 pass through one end of an upper pressing block 21 and are correspondingly embedded in the first through hole 19 and the second through hole 20, the top end of the second pin 23 is provided with a pin cap 24, a spring 25 sleeved on the outer wall of the second pin 23 is arranged between the pin cap 24 and the upper pressing block 21, and when the cover plate 18 is detachably connected to the base 5, the other end of the upper pressing block 21 is press-connected to the top of the first flange 103.

[0056] The processing pipe B is arranged on the first groove seat and the second groove seat and is pressed by the cover plate, so that on the basis of fixing the positions of the processing piece A and the processing pipe B, the processing piece A is arranged between the first clamping block, and the upper pressing block presses the processing piece A, so that the position accuracy is further improved, and the welding effect is improved.

[0057] A sliding slot 26 is formed on the upper surface of the substrate 7 at the end away from the positioning base 5, and a partition plate 27 with a third through hole 28 is arranged between the sliding slot 26 and the first slot 8. The sliding slot 26 is connected with a sliding block 29 with an air needle 30. The air needle 30 can extend into the inside of the processing pipe B 200 through the third through hole 28 of the partition plate 27. The side of the sliding block 29 away from the air needle 30 is connected with an air source.

[0058] The sliding block 29 with the air needle 30 is pushed forward, so that the air needle 30 is located in the inside of the processing pipe B and the air source is connected. The protective gas is discharged from the other end to discharge the external air.

[0059] The protective gas can be filled into the processing pipe B while the processing piece A and the processing pipe B are welded, so that the welding position is prevented from being contacted with the external air, the welding defects caused by oxidation are effectively reduced, and the welding quality is improved.

[0060] The first pin 22 and the second pin 23 are chamfered pins. The chamfered planes of the first pin 22 and the second pin 23 are perpendicular to each other. A first stop screw 32 is embedded in the front end surface of the cover plate 18 and abuts against the first pin 22 in the first through hole 19. A second stop screw is embedded in the side end surface of the cover plate 18 and abuts against the second pin 23 in the second through hole 20.

[0061] The surface of the induction welding device 1 is provided with a display screen 40 and a control panel 41 with buttons. The display screen 40 is used to display the working state of the induction welding device 1 and the conveying platform 3.

[0062] The first slot 7 and the second slot 10 are V-shaped slots.

[0063] The elastic member 15 is a right-angle tension spring.

[0064] A push block 39 is arranged on each side of the two clamping rods 14.

[0065] The diameter of the processing pipe B is 1 mm.

[0066] The working principle is as follows: when used, the cover plate 18 is opened, the processing pipe B 200 and the processing piece A 100 are inserted in advance, then the clamping rod 15 is stretched, so that the processing piece A 100 can be clamped on the first clamping block 9, and the processing pipe B 200 is placed on the first slot 8 and the second slot 10 in front of the partition plate 27. Then, the clamping rod 15 is loosened, so that the clamping rod 15 clamps the processing piece A 100 and the second clamping block 11, and the position stability of the processing piece A 100 is improved.

[0067] The axial position of the processed pipe B200 can be adjusted by the positioning blocks 35 of different heights, the coaxiality of the processed pipe B200 and the end face of the communication cavity 101 is improved, and thus the welding effect is ensured.

[0068] Then, the cover plate 18 is rotated and pressed on the processed pipe B200, the position of the processed pipe B200 is adjusted, the processed pipe B200 is located in the limiting groove 37 of the pressing plate 36, the cover plate 18 is buckled with the base 5 through the buckle 38, and the position stability of the processed pipe B200 is improved.

[0069] The first pin 22 and the second pin 23 with the edge planes perpendicular to each other fix the upper pressing block 21 on the cover plate 18, one end of the upper pressing block 21 is pressed on the top of the first flange 103, and the other end of the upper pressing block 21 is kept in pressure with the top end of the cover plate 18 under the elastic force of the spring 25, so that the warping of the upper pressing block 21 is effectively avoided, the upper pressing block 21 can be kept on the same straight line when the upper pressing block 21 is adjusted to move up and down, the position precision of the upper pressing block is improved, and the pressing force of the upper pressing block 21 on the processed piece A is ensured.

[0070] When the processed piece A100 and the processed pipe B200 are installed on the positioning jig 4, the slider 29 with the air needle 30 is pushed forward, the air needle 30 is located in the processed pipe B and connected to the gas source, the protective gas is discharged from the other end to discharge the external air, then the start button on the control panel 41 is controlled, the transmission platform 3 drives the base to move forward, the extension table 601 on the positioning base 6 extends into the heating area of the magnetic induction coil 2, the processed piece A100 and the processed pipe B are heat-fused and connected, the processing is completed after a period of time, the positioning jig 4 is moved backward by the transmission platform 3, and the extension table 601 exits the heating area of the magnetic induction coil 2.

[0071] Then, the buckle 38 is opened, the cover plate 17 is turned over, and the clamping rod 15 is stretched, so that the processed piece A100 is taken out from the first clamping block 9 and the second clamping block 11.

[0072] When the above electromagnetic induction welding equipment is used, a second clamping block is arranged between the second groove seat and the first clamping block, a left fixed rod and a right fixed rod are arranged on the side of the positioning base close to the base plate, a clamping rod located in the through groove is elastically connected with the left fixed rod and the right fixed rod through elastic members, the other end of the clamping rod is located on the two sides of the processed piece A, so that the processed piece A is clamped with the second clamping block, the processed piece B is preliminarily positioned through the first groove seat and the second groove seat, the processed piece A is preliminarily fixed through the first clamping block, the processed piece A can be clamped with the second clamping block from both sides through the clamping rod, the position precision of the processed piece A is further improved, and thus the overall welding effect is improved.

[0073] Moreover, the first pin and the second pin pass through one end of the upper pressing block and correspondingly embed into the first through hole and the second through hole, the top end of the second pin is provided with a pin cap, a spring sleeved on the outer wall of the second pin is arranged between the pin cap and the upper pressing block, when the cover plate is buckled with the base, the other end of the upper pressing block is press-connected on the top of the processed part A, the processed pipe part B is installed on the first groove seat and the second groove seat and is press-connected by the cover plate, so that on the basis of realizing the position fixation of the processed part A and the processed pipe part B, the processed part A is installed between the first clamping blocks, the upper pressing block press-connects the processed part A, the position precision is further improved, and the welding effect is improved.

[0074] Moreover, the sliding groove is provided with a sliding block with an air needle, the air needle for filling the protective gas can pass through the through hole of the partition plate and extend into the inside of the processed pipe part B, so that the protective gas can be filled into the processed pipe part B while the processed part A and the processed pipe part B are welded, the protective gas is prevented from contacting the welding part in the outside air, the situation that the welding defects are caused by the oxidation of the welding is effectively reduced, and the welding quality is improved.

[0075] The above examples are only for illustrating the technical concept and characteristics of the present application, the purpose is to enable the person skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. An electromagnetic induction welding device for electromagnetic induction welding between workpiece A (100) and pipe fitting B (200), characterized in that: The utility model relates to an induction welding device (1), a conveying platform (3) and a positioning fixture, the conveying platform (3) with the positioning fixture is installed on one side of the induction welding device (1), the induction welding device (1) has a magnetic induction coil (2) for welding, the processing piece A (100) with the communicating cavity (101) in it has a ring groove (102) on one end close to the processing pipe piece B (200), and the first flange (103) and the second flange (104) are arranged on the front and back sides of the ring groove (102) respectively. The positioning fixture comprises a base (5), a positioning base (6) and a base plate (7), the positioning base (6) and the base plate (7) are respectively installed on the top of the base (5) connected with the conveying platform (3), the positioning base (6) at the front end of the base plate (7) has an extension table (601), a first clamping block (9) is arranged on each side of the top of the extension table (601) close to the magnetic induction coil (2), the first flange (103) of the processing piece A (100) is clamped between the two first clamping blocks (9), a first groove seat (8) is arranged on the top of the base plate (7) and along the length direction thereof, a second groove seat (10) is arranged between the first clamping block (9) and the first groove seat (8), and the first groove seat (8) and the second groove seat (10) are coaxially arranged to install the processing pipe piece B (200). A second clamping block (11) is arranged between the second groove seat (10) and the first clamping block (9), a left fixed rod (12) and a right fixed rod (13) are arranged on one side of the positioning base (6) close to the base plate (7), a limiting block (14) with a through groove (141) is installed on the top of the positioning base (6) and is symmetrically arranged with respect to the processing pipe piece B (200), a clamping rod (15) at one end in the through groove (141) is elastically connected with the left fixed rod (12) and the right fixed rod (13) through elastic members (16), and the other end of the clamping rod (15) is located on the two sides of the ring groove (102) of the processing piece A (100), so that the second flange (104) and the second clamping block (11) are clamped. ​ A fixed plate (17) with a cover plate (18) rotatably connected at the upper end is installed on one side of the base (5), the side away from the fixed plate (17) of the cover plate (18) can be connected with the base (5) by buckling, a first through hole (19) and a second through hole (20) are formed on the top of the cover plate (18), the line between the first through hole (19) and the second through hole (20) is parallel to the length direction of the processing pipe B (200), an upper pressing block (21) is arranged above the positioning base (6), a first pin (22) and a second pin (23) pass through one end of the upper pressing block (21) and are correspondingly embedded in the first through hole (19) and the second through hole (20), the top end of the second pin (23) has a pin cap (24), a spring (25) sleeved on the outer wall of the second pin (23) is arranged between the pin cap (24) and the upper pressing block (21), when the cover plate (18) is buckled with the base (5), the other end of the upper pressing block (21) is pressed on the top of the first flange (103); The first pin (22) and the second pin (23) are chamfered pins, the chamfered planes of the first pin (22) and the second pin (23) are perpendicular to each other, a first stop screw (32) is embedded in the front end face of the cover plate (18) and abuts against the first pin (22) located in the first through hole (19), a second stop screw is embedded in the side end face of the cover plate (18) and abuts against the second pin (23) located in the second through hole (20).

2. The electromagnetic induction welding apparatus of claim 1, wherein: A sliding groove (26) is formed on the upper surface of the end of the base plate (7) away from the positioning base (6), a partition plate (27) with a third through hole (28) is arranged between the sliding groove (26) and the first groove seat (8), the sliding groove (26) is slidably connected with a sliding block (29) with an air needle (30), the air needle (30) for filling protective gas can extend into the inside of the processing pipe B (200) through the third through hole (28) of the partition plate (27), the side opposite to the air needle (30) of the sliding block (29) is connected with an air source.

3. The electromagnetic induction welding apparatus of claim 2, wherein: A stop block (31) is installed on the rear end face of the base plate (7).

4. The electromagnetic induction welding apparatus of claim 3, wherein: When the sliding block (29) contacts the stop block (31), the end of the air needle (30) away from the sliding block (29) is located in the third through hole (28).

5. The electromagnetic induction welding apparatus according to claim 1 or 2, characterized by: A containing groove (34) is arranged between the second clamping block (11) and the second groove seat (10), the positioning clamping block (35) is detachably installed in the containing groove (34).

6. The electromagnetic induction welding apparatus of claim 1, wherein: A display screen (40) and a control panel (41) with buttons are installed on the surface of the induction welding device (1), the display screen (40) is used to display the working state of the induction welding device (1) and the conveying platform (3).

7. The electromagnetic induction welding apparatus of claim 1, wherein: The first groove seat (8) and the second groove seat (10) are V-shaped groove seats.

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