An infrared welding machine for welding two end heads to an extrusion pipe

Abstract

The present invention relates to the field of welding technology, in particular to an infrared welding machine for welding two side end caps and an extrusion pipe, comprising: an infrared welding machine; a positioning and fixing assembly arranged inside the infrared welding machine, the positioning and fixing assembly including a positioning ring and a fixing ring, an auxiliary ring is arranged on the outer wall of the positioning ring, a pushing component is arranged on the inner wall of the positioning ring, and the pushing component is used for adjusting the end cap on the outer wall of the positioning ring to align it with the outer wall of the extrusion pipe; in the present invention, the extrusion pipe is fixed by a fixing block, while fixing the extrusion pipe, the positions of the end caps are adjusted through the first fixing rod and the second fixing rod. At the same time, the movement of the half gear inside the auxiliary ring drives the movement of the second fixing module, which cooperates with the first positioning module to further adjust the positions of the end caps, making the positions of the end caps and the extrusion pipe opposite to each other, so that the axes of the end cap and the extrusion pipe are aligned before welding, avoiding deviation in their positions and affecting subsequent welding.

Description

Technical Field

[0001] The invention relates to the technical field of welding, in particular to an infrared welding machine for welding end caps on both sides to an extruded tube. Background Art

[0002] With the rapid development of new energy technologies, hydrogen energy, as a clean and efficient energy form, is increasingly widely used in the energy field. As a key equipment for hydrogen energy utilization, the manufacturing quality and efficiency of hydrogen storage tanks have an important impact on the overall performance of hydrogen energy systems. As the core component of hydrogen storage tanks, the quality and performance of liner have an important impact on the overall operation of the equipment. The welding of the two side heads and the extruded tube is a key link in the manufacturing process of the liner, and the welding quality directly affects the strength and sealing of the liner.

[0003] During the heating process, traditional welding methods are prone to uneven heating, resulting in insufficient strength of the welded joints and even weld cracking. At the same time, due to the differences in material and shape of the head and the extruded tube, deformation is easy to occur during the welding process, affecting the sealing and overall structural stability of the hydrogen storage tank. In addition, during welding, due to the deviation in the position of the head and the extruded tube, poor welding results often occur.

[0004] The patent with announcement number CN118664203A discloses a hydrogen storage tank welding device and welding process. The device is provided with a fastening mechanism and a detection mechanism. During welding, the lower end of the tank is clamped by a chuck, and the upper end of the tank is clamped by the fastening mechanism. A driving mechanism is provided inside the driving seat. The upper and lower ends of the chuck and the tank are controlled to rotate by the driving mechanism so that the first welding head and the part to be welded can be welded in all directions. During the process of welding the tank, the detection mechanism is transported to the inside of the tank by a sliding frame. When the detection mechanism is aligned with the weld, the welding quality of the tank weld is detected by the detection mechanism. When a weld without penetration is found, the weld is welded for a second time by a second welding head.

[0005] However, the device still has some problems: although the detection mechanism can be used to perform secondary welding on incomplete welds, the neatness of the welding parts cannot be guaranteed during welding, which may cause deviations after the welding is completed, resulting in low welding quality of the hydrogen tank and accidents during use. Summary of the invention

[0006] In view of the above problems in the prior art, the present invention is proposed.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: an infrared welding machine for welding two-side end caps to an extruded tube, comprising an infrared welding machine;

[0008] A positioning and fixing assembly disposed inside the infrared welding machine. The positioning and fixing assembly includes a positioning ring and a fixing ring. An auxiliary ring is provided on the outer wall of the positioning ring, and a pushing member is provided on the inner wall of the positioning ring. The pushing member is used to adjust the head on the outer wall of the positioning ring so that it aligns with the outer wall of the extrusion tube. The fixing ring is sleeved on the outer wall of the extrusion tube, and fixing blocks are provided on the inner wall of the fixing ring. The fixing blocks are used to fix the extrusion tube and press the head tightly against the outer wall of the extrusion tube;

[0009] When the axis of the head deviates from the axis of the extrusion tube, the position of the head is adjusted by the pushing member. When the fixing blocks move on the inner wall of the fixing ring, the extrusion tube is fixed to avoid shaking, and at the same time, the head is fixed and it is detected whether the edge of the head aligns with the edge of the extrusion tube.

[0010] As a preferred solution of the infrared welding machine for welding the two side heads and the extrusion tube according to the present invention, wherein: a first moving member is provided at the end of the positioning ring for adjusting the position of the positioning ring at the end of the infrared welding machine. A first positioning module is fixed on the outer wall of the positioning ring. A first movable cavity is opened on the inner wall of the positioning ring, and a half gear is movably provided inside the first movable cavity. One end of the half gear is connected to a strip spring, and the strip spring is used to drive the half gear to reset inside the first movable cavity.

[0011] As a preferred solution of the infrared welding machine for welding the two side heads and the extrusion tube according to the present invention, wherein: the auxiliary ring is provided on the outer wall of the positioning ring. A second movable cavity is opened on the inner wall of the auxiliary ring, and the second movable cavity communicates with the first movable cavity for the movement of the half gear.

[0012] As a preferred solution of the infrared welding machine for welding the two side heads and the extrusion tube according to the present invention, wherein: an opening is provided on the end face of the auxiliary ring. A second positioning module is movably provided on the inner wall of the opening. A first elastic member is provided at one end of the second positioning module, and the first elastic member is used to drive the second positioning module to reset inside the opening.

[0013] As a preferred solution of the infrared welding machine for welding the two side heads and the extrusion tube according to the present invention, wherein: a second moving member is provided at the end of the fixing ring for adjusting the position of the fixing ring. A chute is opened on the outer wall of the fixing ring, and the outer wall of the fixing block slides along the inner wall of the chute. A rotating disk is movably provided on the inner wall of the fixing ring. A spiral ring is provided on the end face of the rotating disk, and an output gear is provided at the other end.

[0014] As a preferred embodiment of the infrared welding machine for welding the two end heads and the extrusion pipe according to the present invention, wherein: a notch is formed on the end face of the fixed block and the notch fits the spiral ring, a first fixing rod is hinged to the end of the fixed block, a second fixing rod is arranged on the outer wall of the hinge point of the first fixing rod, and a third elastic member is further arranged at the end of the first fixing rod for pushing the first fixing rod and making it extend outwards.

[0015] As a preferred embodiment of the infrared welding machine for welding the two end heads and the extrusion pipe according to the present invention, wherein: the pushing member is located outside the half gear, a convex block is arranged on the outer wall of the pushing member and a pushing tooth is arranged at the end of the pushing member, the convex block is used for limiting the half gear, and the pushing tooth is used for pushing the half gear to rotate on the inner wall of the first moving cavity.

[0016] As a preferred embodiment of the infrared welding machine for welding the two end heads and the extrusion pipe according to the present invention, wherein: a servo motor is further arranged at the end of the first moving member, a transmission shaft is arranged at the axis of the servo motor, and a cam is sleeved on the outer wall of the transmission shaft. The outer wall of the cam is in contact with the roller at the end of the pushing member, and the cam is used for driving the pushing member to move, thereby driving the half gear to rotate.

[0017] As a preferred embodiment of the infrared welding machine for welding the two end heads and the extrusion pipe according to the present invention, wherein: a first joint is further sleeved on the outer wall of the transmission shaft, second elastic members are arranged in an array on the inner wall of the transmission shaft, and balls are arranged at the ends of the second elastic members. The second elastic members are used for pushing the balls to make them tightly fit the inner wall groove of the first joint, so that the first joint rotates along with the transmission shaft.

[0018] As a preferred embodiment of the infrared welding machine for welding the two end heads and the extrusion pipe according to the present invention, wherein: a second joint is further arranged on the inner wall of the fixed ring. When the second moving member drives the fixed ring to move, the second joint is engaged with the first joint and rotates along with the first joint. A transmission gear is arranged at the end of the second joint, and the transmission gear is engaged with the output gear. Auxiliary gears are further arranged in an array on the inner wall of the fixed ring for assisting the transmission gear to make the rotating disc rotate on the inner wall of the fixed ring.

[0019] Advantages of the present invention: The present invention fixes the extrusion pipe through the fixed block. While fixing the extrusion pipe, the position of the end head is adjusted through the first fixing rod and the second fixing rod. At the same time, the movement of the half gear inside the auxiliary ring drives the second fixing module to move, which cooperates with the first positioning module to further adjust the position of the end head, making the end head and the extrusion pipe opposite to each other, so that the axes of the end head and the extrusion pipe are aligned before welding, avoiding deviation in their positions and affecting subsequent welding. Description of the Drawings

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of an infrared welding machine for welding both ends of a head and an extrusion pipe according to the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the positioning and fixing component in the present invention;

[0023] Figure 3 It is a schematic diagram of the internal structure of the positioning and fixing component in the present invention;

[0024] Figure 4 It is a schematic diagram of the positional relationship between the pushing component and the positioning ring of the half gear in the present invention;

[0025] Figure 5 For the present invention Figure 4 A magnified schematic diagram of the structure at A in;

[0026] Figure 6 It is a schematic diagram of the internal structure of the positioning ring in the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of the fixing ring in the present invention;

[0028] Figure 8 It is a schematic diagram of the internal structure of the fixing ring in the present invention;

[0029] Figure 9 It is a side sectional view of the fixing block in the present invention.

[0030] Reference numerals: 100, infrared welding machine;

[0031] 200, Positioning and fixing component; 201, First moving part; 202, Second moving part; 203, Servo motor; 2031, Transmission shaft; 2032, Cam; 2033, First joint; 2034, Second elastic part; 2035, Ball; 204, Pushing component; 2041, Bump; 2042, Pushing tooth; 205, Positioning ring; 2051, First positioning module; 2052, First moving cavity; 2053, Half gear; 2054, Strip spring; 206, Auxiliary ring; 2061, Second moving cavity; 2062, Opening; 2063, Second positioning module; 2064, First elastic part; 207, Fixed ring; 2071, Chute; 2072, Rotating disk; 2073, Spiral ring; 2074, Output gear; 2075, Second joint; 2076, Transmission gear; 2077, Auxiliary gear; 208, Fixed block; 2081, Notch; 2082, First fixing rod; 2083, Second fixing rod; 2084, Third elastic part. Detailed implementation mode

[0032] To make the above objects, features and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation mode of the present invention with reference to the accompanying drawings of the specification.

[0033] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0034] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation mode of the present invention. The "in one embodiment" appearing in different places in this specification does not all refer to the same embodiment, nor is it a separate or alternative embodiment that mutually excludes other embodiments.

[0035] Embodiment 1

[0036] This is the first embodiment of the present invention, and this embodiment provides an infrared welding machine for welding both ends of a head and an extrusion pipe.

[0037] Before infrared welding, it is necessary to clean and preprocess the extrusion pipe and the head to ensure that there is no oil stain, impurity, etc. on the welding surface to improve the welding quality. At the same time, according to the characteristics of the welding material and the welding requirements, the parameters of the infrared welding machine, such as heating power, heating time, welding pressure, etc., should be adjusted.

[0038] Before welding, first adjust the extrusion tube and the head through the positioning and fixing component 200 to align and fit them. Then, the infrared welding machine 100 emits infrared radiation to heat the fitting part of the extrusion tube and the head. Infrared rays have high energy and can quickly raise the temperature of the welding part to the melting temperature of the material.

[0039] During the heating process, the temperature of the welding part will gradually rise, and the material begins to soften and gradually reach the molten state. This process requires precise control of the infrared radiation emitted by the infrared welding machine 100 to avoid overheating, which may cause thermal degradation or deformation of the material.

[0040] After the welding part reaches the molten state, apply a certain pressure to make the extrusion tube and the head fit tightly together. At this time, the molten material flows under the action of pressure and fills the welding gap, forming a firm welded joint.

[0041] The magnitude of the welding pressure is crucial for the welding quality. A higher welding pressure can compensate for the possible damage to the material during the heating process, press the damaged material into the weld, and thus ensure the strength of the welding.

[0042] After welding, the welding part needs to be gradually cooled and solidified to make the welded joint reach sufficient strength. During the cooling process, avoid rapid cooling, which may cause defects such as stress concentration or cracks in the welding part.

[0043] The cooling rate can be controlled by natural cooling or by using an appropriate cooling device. At the same time, check the inner liner after welding to ensure that the welding quality meets the requirements.

[0044] Embodiment 2

[0045] This is the second embodiment of the present invention, which is implemented based on the previous embodiment.

[0046] Specifically, referring to Figure 1 、 Figure 2 , it includes an infrared welding machine 100;

[0047] A positioning and fixing component 200 provided inside the infrared welding machine 100. The positioning and fixing component 200 includes a positioning ring 205 and a fixing ring 207. An auxiliary ring 206 is provided on the outer wall of the positioning ring 205, and a pushing component 204 is provided on the inner wall of the positioning ring 205. The pushing component 204 is used to adjust the head on the outer wall of the positioning ring 205 to align it with the outer wall of the extrusion tube. The fixing ring 207 is sleeved on the outer wall of the extrusion tube, and a fixing block 208 is provided on the inner wall of the fixing ring 207. The fixing block 208 is used to fix the extrusion tube and press the head tightly against the outer wall of the extrusion tube.

[0048] When the axis of the head is deviated from the axis of the extrusion pipe, the position of the head is adjusted by the pushing member 204. When the fixing block 208 moves on the inner wall of the fixing ring 207, the extrusion pipe is fixed to avoid shaking, and at the same time the head is fixed and the edge of the head is further adjusted to align it with the edge of the extrusion pipe.

[0049] In summary, during use, first fit the auxiliary ring 206 with the positioning ring 205 to make them an integral body, and then place the head on the surfaces of the positioning ring 205 and the auxiliary ring 206. At this time, through the movement of the pushing member 204, the head is driven to perform a preliminary position adjustment on the outer wall of the positioning ring 205, avoiding excessive inclination of the head and affecting the subsequent alignment work with the edge of the extrusion pipe. Then, the extrusion pipe is brought close to the head through the fixing ring 207. After that, the fixing block 208 on the inner wall of the fixing ring 207 moves towards the axis of the fixing ring 207 to fix the middle extrusion pipe, and at the same time, the extrusion pipe and the head are adjusted for the second position to avoid deviation at the edge and affect the subsequent welding work.

[0050] Embodiment 3

[0051] This is the third embodiment of the present invention, which is implemented based on the previous embodiment.

[0052] Specifically, referring to Figures 3 to 5 , a first moving member 201 is provided at the end of the positioning ring 205 for adjusting the position of the positioning ring 205 at the end of the infrared welding machine 100. A first positioning module 2051 is fixed on the outer wall of the positioning ring 205. A first moving cavity 2052 is formed on the inner wall of the positioning ring 205, and a half gear 2053 is movably arranged inside the first moving cavity 2052. A leaf spring 2054 is connected to the end of the half gear 2053, and the leaf spring 2054 is used to drive the half gear 2053 to reset inside the first moving cavity 2052.

[0053] Among them, the first moving member 201 moves inside the guide rail on the surface of the infrared welding machine 100, driving the upper positioning ring 205 to move together to adjust the position on the surface of the infrared welding machine 100.

[0054] The first positioning module 2051 is fixed on the surface of the positioning ring 205. The inner surface of the first positioning module 2051 has a curvature, which is more fitting to the surface of the head, and at the same time facilitates the adjustment of the head on the surface of the first positioning module 2051, such as Figure 5As shown in the figure, the first movable cavity 2052 runs through the inside of the entire positioning ring 205. The positioning ring 205 is a semi-circular ring, and a semi-gear 2053 is arranged inside it. The semi-gear 2053 moves along the first movable cavity 2052. At the bottom end of the first movable cavity 2052, a strip spring 2054 is arranged. One end of the strip spring 2054 is fixed to the end of the semi-gear 2053. When the semi-gear 2053 moves inside the first movable cavity 2052, it pulls the strip spring 2054 and deforms it. The strip spring 2054 is used to reset the semi-gear 2053 back into the first movable cavity 2052.

[0055] Preferably, the auxiliary ring 206 is arranged on the outer wall of the positioning ring 205. A second movable cavity 2061 is formed on the inner wall of the auxiliary ring 206, and the second movable cavity 2061 communicates with the first movable cavity 2052 for the movement of the semi-gear 2053.

[0056] Among them, the auxiliary ring 206 is also semi-circular, the same size as the positioning ring 205, and when they are fitted, the second movable cavity 2061 inside the auxiliary ring 206 communicates with the first movable cavity 2052 inside the positioning ring 205, and the semi-gear 2053 can move from the first movable cavity 2052 into the second movable cavity 2061.

[0057] An opening 2062 is formed on the end face of the auxiliary ring 206. A second positioning module 2063 is movably arranged on the inner wall of the opening 2062. A first elastic member 2064 is arranged at the end of the second positioning module 2063, and the first elastic member 2064 is used to drive the second positioning module 2063 to reset inside the opening 2062.

[0058] Among them, a second positioning module 2063 is arranged inside the auxiliary ring 206. Different from the first positioning module 2051, the second positioning module 2063 can expand and contract inside the auxiliary ring 206. Through the second movable cavity 2061, when the semi-gear 2053 moves into the second movable cavity 2061 and passes through the second positioning module 2063, the semi-gear 2053 contacts the inclined surface on the surface of the second positioning module 2063, and extrudes the second positioning module 2063 from the opening 2062 of the auxiliary ring 206 to the outside, and cooperates with the first positioning module 2051 fixed on the outer wall of the positioning ring 205 to adjust the position of the head. Since the outer surface of the head has a certain curvature, the head can be straightened by fitting the inner surfaces of the three positioning modules with the outer surface of the head to avoid excessive inclination.

[0059] Preferably, refer to Figures 3 to 5, the pushing member 204 is located outside the half gear 2053. A convex block 2041 is provided on the outer wall of the pushing member 204 and a pushing tooth 2042 is provided at the end of the pushing member 204. The convex block 2041 is used to limit the half gear 2053, and the pushing tooth 2042 is used to push the half gear 2053 to rotate on the inner wall of the first moving cavity 2052. A servo motor 203 is also provided at the end of the first moving member 201. A transmission shaft 2031 is provided at the axis of the servo motor 203 and a cam 2032 is sleeved on the outer wall of the transmission shaft 2031. The outer wall of the cam 2032 is in contact with the roller at the end of the pushing member 204. The cam 2032 is used to drive the pushing member 204 to move, thereby driving the half gear 2053 to rotate.

[0060] Among them, the convex block 2041 on the surface of the pushing member 204 is engaged in the tooth gap of the half gear 2053 to limit the half gear 2053. At the same time, the pushing tooth 2042 at the top is used to drive the half gear 2053 to rotate. When the cam 2032 rotates one circle, the roller below the pushing member 204 will pass through the recess of the cam 2032 once, causing the pushing member 204 to tilt backward once, and the pushing tooth 2042 at the top will fall into the next tooth gap of the half gear 2053. When the convex part of the cam 2032 contacts the roller, it will drive the pushing member 204 to approach the half gear 2053 and push the half gear 2053 to rotate.

[0061] In summary, during use, after the first moving member 201 adjusts the positions of the two positioning rings 205 on both sides, at this time, the auxiliary ring 206 is lowered to fit with the positioning ring 205. After the head is placed outside the positioning ring 205 and the auxiliary ring 206, the servo motor 203 drives the cam 2032 on the transmission shaft 2031 to rotate. Every time the cam 2032 rotates one circle, the upper pushing member 204 will move once, driving the half gear 2053 to rotate upward in the first moving cavity 2052 and gradually enter the second moving cavity 2061 inside the auxiliary ring 206.

[0062] Two second positioning modules 2063 are evenly arranged inside the second moving cavity 2061. When the half gear 2053 rotates inside the second moving cavity 2061, it will gradually encounter the second positioning modules 2063. The second positioning modules 2063 are extruded out of the second moving cavity 2061 through the movement of the half gear 2053 and cooperate with the first positioning modules 2051 fixed on the outer wall of the positioning ring 205.

[0063] The inner surfaces of the second positioning modules 2063 and the first positioning modules 2051 are both arc surfaces and fit with the arc outer wall of the head. Through the cooperation of the second positioning modules 2063 and the first positioning modules 2051, the head is kept in a straightened state to avoid tilting and affecting the next step of fitting with the outer wall of the extrusion pipe.

[0064] Example 4

[0065] This is the fourth embodiment of the present invention, which is implemented based on the previous embodiment.

[0066] Specifically, referring to Figure 2 、 Figures 6 to 8 , a second moving member 202 is provided at the end of the fixing ring 207 for adjusting the position of the fixing ring 207. A sliding groove 2071 is formed on the outer wall of the fixing ring 207, and the outer wall of the fixing block 208 slides along the inner wall of the sliding groove 2071. A rotating disk 2072 is movably arranged on the inner wall of the fixing ring 207. A spiral ring 2073 is arranged on the end face of the rotating disk 2072 and an output gear 2074 is arranged at the other end.

[0067] Among them, the fixing ring 207 adjusts its position on the surface of the infrared welding machine 100 through the second moving member 202. The fixing ring 207 is sleeved on the outer wall of the extrusion tube, and the fixing ring 207 and the extrusion tube move together on the surface of the infrared welding machine 100.

[0068] A sliding groove 2071 is formed on the surface of the fixing ring 207 for the fixing block 208 to move on the surface of the fixing ring 207. A receiving cavity is formed on the inner wall of the fixing ring 207, and a rotating disk 2072 is installed inside. A spiral ring 2073 is arranged on the surface of the rotating disk 2072 for cooperating with the fixing block 208 and driving the fixing block 208 to move inside the sliding groove 2071 on the surface of the fixing ring 207. The output gear 2074 on the other side of the rotating disk 2072 is used to drive the rotating disk 2072 itself to rotate.

[0069] Preferably, referring to Figure 8 , a notch 2081 is formed on the end face of the fixing block 208 and the notch 2081 fits the spiral ring 2073. A first fixing rod 2082 is hinged at the end of the fixing block 208. A second fixing rod 2083 is arranged on the outer wall of the hinge point of the first fixing rod 2082. A third elastic member 2084 is also arranged at the end of the first fixing rod 2082 for pushing the first fixing rod 2082 and making it extend outwards.

[0070] Among them, the fixing block 208 slides on the inner wall of the fixing ring 207, and the notch 2081 on the surface is attached to the spiral ring 2073 on the surface of the rotating disk 2072. As the rotating disk 2072 rotates, the spiral ring 2073 moves in the notch 2081 on the lower surface of the fixing block 208 and makes the fixing block 208 slide on the outer wall of the fixing ring 207.

[0071] The first fixing rod 2082 and the second fixing rod 2083 are an integral body, and the middle turning point of the two is hinged on the inner wall of the fixing block 208, as shown in Figure 8As shown, a third elastic member 2084 is also provided at the top of the first fixing rod 2082 to push the top end of the first fixing rod 2082 to extend outward, that is, to stick to the outer wall of the extrusion tube in the middle of the fixing ring 207.

[0072] Preferably, referring to Figure 3 , Figure 7 and Figure 8 , a first joint 2033 is also sleeved on the outer wall of the transmission shaft 2031. A second elastic member 2034 is arranged in an array on the inner wall of the transmission shaft 2031, and a ball 2035 is arranged at the end of the second elastic member 2034. The second elastic member 2034 is used to push the ball 2035 to make it stick tightly to the inner wall groove of the first joint 2033, so that the first joint 2033 is driven by the transmission shaft 2031. A second joint 2075 is also arranged on the inner wall of the fixing ring 207. When the second moving member 202 drives the fixing ring 207 to move, the second joint 2075 is engaged with the first joint 2033 and rotates with the first joint 2033. A transmission gear 2076 is arranged at the end of the second joint 2075, and the transmission gear 2076 is meshed with the output gear 2074. Auxiliary gears 2077 are also arranged in an array on the inner wall of the fixing ring 207 to assist the transmission gear 2076 to make the rotating disc 2072 rotate on the inner wall of the fixing ring 207.

[0073] Among them, a first joint 2033 is also provided at the top end of the transmission shaft 2031. A groove is formed in the inner wall of the first joint 2033, which cooperates with the second elastic member 2034 and the ball 2035 on the inner wall of the top of the transmission shaft 2031. The second elastic member 2034 pushes the ball 2035 into the groove on the inner wall of the first joint 2033. Through engagement, the first joint 2033 can rotate with the transmission shaft 2031. At the same time, the second joint 2075 outside the fixing ring 207 will be engaged with the first joint 2033 as the second moving member moves and rotate together with the first joint 2033.

[0074] When the second joint 2075 rotates, the transmission gear 2076 on the other side drives the rotating disc 2072 to rotate inside the fixing ring 207 because it is meshed with the output gear 2074 on the lower surface of the rotating disc 2072.

[0075] In summary, during use, the extrusion tube is placed inside the fixed ring 207. As the moving part 202 approaches the positioning ring 205, when the second joint 2075 on the surface of the fixed ring 207 engages with the first joint 2033, a sealing head is placed outside the positioning ring 205 and the auxiliary ring 206, and the auxiliary ring 206 is closed, bringing the outside of the sealing head close to the inner rings of the positioning ring 205 and the auxiliary ring 206 for simple position fixation. At this time, the outer wall edge of the extrusion tube is close to but does not touch the edge of the sealing head. Then, the servo motor 203 drives the pushing part 204 to move, causing the half gear 2053 to move from inside the positioning ring 205 into the inside of the auxiliary ring 206. At this time, the second joint 2075 drives the rotating disk 2072 to rotate, and the fixing block 208 on the surface of the fixed ring 207 starts to move towards the center of the fixed ring 207 and gradually approaches the extrusion tube.

[0076] The three fixing blocks 208 move synchronously towards the extrusion tube to fix the extrusion tube. Since the moving speeds of the fixing block 208 and the half gear 2053 are different, when the fixing block 208 clamps the middle extrusion tube, the half gear 2053 moves into the second moving cavity 2061 inside the first moving cavity 2052. At this time, the transmission shaft 2031 continues to move, and the first joint 2033 at the top of the transmission shaft 2031 engages with the second joint 2075. At this time, the second joint 2075 cannot move further, and the first joint 2033 is also restricted by the second joint 2075. At this time, the ball 2035 inside the transmission shaft 2031 is affected by the inner wall groove of the first joint 2033 and moves inward to squeeze the second elastic member 2034. At this time, the transmission shaft 2031 is disengaged from the first joint 2033 and can continue to drive the half gear 2053 to move through the pushing part 204. Due to the influence of the spiral ring 2073, the fixing block 208 will not move backward and fixes the extrusion tube.

[0077] When the fixing block 208 is close to the extrusion tube, the first fixing rod 2082 at the end contracts towards the inner wall of the fixing block 208 under the action of the outer wall of the extrusion tube. At this time, the second fixing rod 2083 at the other end rotates around the connection point and moves downward. The top of the second fixing rod 2083 presses against the outer wall of the sealing head and drives the sealing head towards the extrusion tube. At the same time, the half gear 2053 still moves from the first moving cavity 2052 into the second moving cavity 2061 and gradually squeezes the two second positioning modules 2063 outward to make them close to the outer wall of the sealing head. At this time, the sealing head is attached to the outside of the extrusion tube. Through the action of the three positioning modules, the axes of the sealing head and the extrusion tube are on the same horizontal line, which helps the welding edges of the sealing head and the extrusion tube to fit together.

[0078] After welding is completed, reversing the servo motor 203 can drive the fixed block 208 to loosen the extrusion pipe. Moreover, a lifting platform is provided between the first moving member 201 and the servo motor 203. The servo motor 203 can move downward. When the first joint 2033 is separated from the second joint 2075, the servo motor 203 can descend on the first moving member 201. At this time, the cam 2032 and the roller of the pushing member 204 fall together, and the pushing member 204 flips and disengages from the half gear 2053. Then, the leaf spring 2054 pulls the half gear 2053 back to its original position.

[0079] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. An infrared welding machine for welding two-side end caps to extruded tubes, characterized in that: include Infrared welding machine (100); A positioning and fixing component (200) is arranged inside the infrared welding machine (100), the positioning and fixing component (200) comprises a positioning ring (205) and a fixing ring (207), the outer wall of the positioning ring (205) is provided with an auxiliary ring (206), the inner wall of the positioning ring (205) is provided with a pushing component (204), the pushing component (204) is used to adjust the sealing head of the outer wall of the positioning ring (205) so that it is aligned with the outer wall of the extruded tube, the fixing ring (207) is sleeved on the outer wall of the extruded tube, the inner wall of the fixing ring (207) is provided with a fixing block (208), the fixing block (208) is used to fix the extruded tube and to make the sealing head close to the outer wall of the extruded tube; When the axis of the end cap deviates from the axis of the extruded tube, the position of the end cap is adjusted by the pushing component (204), and when the fixing block (208) moves on the inner wall of the fixing ring (207), the extruded tube is fixed to prevent shaking, and the end cap is fixed and whether the edge of the end cap is aligned with the edge of the extruded tube is detected; A second moving component (202) is provided at the end of the fixing ring (207) for adjusting the position of the fixing ring (207); a sliding groove (2071) is provided on the outer wall of the fixing ring (207); the outer wall of the fixing block (208) slides along the inner wall of the sliding groove (2071); a rotating disk (2072) is movably provided on the inner wall of the fixing ring (207); a vortex ring (2073) is provided on the end surface of the rotating disk (2072) and an output gear (2074) is provided at the other end; The end surface of the fixing block (208) is provided with a notch (2081) and the notch (2081) fits the vortex ring (2073); a first fixing rod (2082) is hingedly connected to the end of the fixing block (208); a second fixing rod (2083) is arranged on the outer wall of the hinge point of the first fixing rod (2082); and a third elastic member (2084) is also arranged at the end of the first fixing rod (2082) for pushing the first fixing rod (2082) and causing it to extend outward.

2. The infrared welding machine for welding the end caps on both sides to the extruded tube as claimed in claim 1, characterized in that: A first moving component (201) is arranged at the end of the positioning ring (205) for adjusting the end position of the positioning ring (205) at the infrared welding machine (100); a first positioning module (2051) is fixed to the outer wall of the positioning ring (205); a first movable cavity (2052) is opened on the inner wall of the positioning ring (205), and a half gear (2053) is movably arranged inside the first movable cavity (2052); a strip spring (2054) is connected to the end of the half gear (2053); the strip spring (2054) is used to drive the half gear (2053) to reset inside the first movable cavity (2052).

3. The infrared welding machine for welding the end caps on both sides to the extruded tube as claimed in claim 2, characterized in that: The auxiliary ring (206) is arranged on the outer wall of the positioning ring (205), and a second movable cavity (2061) is opened on the inner wall of the auxiliary ring (206), and the second movable cavity (2061) is connected to the first movable cavity (2052) for the movement of the half gear (2053).

4. The infrared welding machine for welding the end caps on both sides to the extruded tube as claimed in claim 3, characterized in that: An opening (2062) is provided on the end face of the auxiliary ring (206), a second positioning module (2063) is movably provided on the inner wall of the opening (2062), a first elastic member (2064) is provided at the end of the second positioning module (2063), and the first elastic member (2064) is used to drive the second positioning module (2063) to reset inside the opening (2062).

5. The infrared welding machine for welding the end caps on both sides to the extruded tube as claimed in claim 4, characterized in that: The pushing component (204) is located outside the half gear (2053), the outer wall of the pushing component (204) is provided with a protrusion (2041), and the end of the pushing component (204) is provided with a pushing tooth (2042), the protrusion (2041) is used to limit the half gear (2053), and the pushing tooth (2042) is used to push the half gear (2053) to rotate on the inner wall of the first movable cavity (2052).

6. The infrared welding machine for welding the end caps on both sides to the extruded tube as claimed in claim 5, characterized in that: A servo motor (203) is also provided at the end of the first moving component (201); a transmission shaft (2031) is provided at the axis of the servo motor (203); and a cam (2032) is sleeved on the outer wall of the transmission shaft (2031); the outer wall of the cam (2032) is in contact with a roller at the end of the pushing component (204); the cam (2032) is used to drive the pushing component (204) to move, thereby driving the half gear (2053) to rotate.

7. The infrared welding machine for welding the end caps on both sides to the extruded tube as claimed in claim 6, characterized in that: The outer wall of the transmission shaft (2031) is also sleeved with a first joint (2033); the inner wall of the transmission shaft (2031) is provided with a second elastic member (2034) in an array, and a ball (2035) is provided at the end of the second elastic member (2034); the second elastic member (2034) is used to push the ball (2035) to make it close to the groove on the inner wall of the first joint (2033), so that the first joint (2033) is driven along with the transmission shaft (2031).

8. The infrared welding machine for welding the end caps on both sides to the extruded tube as claimed in claim 7, characterized in that: The inner wall of the fixing ring (207) is also provided with a second joint (2075); when the second moving component (202) drives the fixing ring (207) to move, the second joint (2075) engages with the first joint (2033) and rotates along with the first joint (2033); a transmission gear (2076) is provided at the end of the second joint (2075), and the transmission gear (2076) is meshed with the output gear (2074); and the inner wall of the fixing ring (207) is also provided with an array of auxiliary gears (2077) for assisting the transmission gear (2076) to rotate the rotating disk (2072) on the inner wall of the fixing ring (207).

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