Ultrasonic pipe sealing welding machine

Abstract

The invention belongs to the technical field of pipe sealing and cutting, and particularly relates to an ultrasonic pipe sealing welding machine which comprises a machine shell. The transmission assembly comprises an air cylinder, a push rod and a rotating swing arm, the rotating swing arm is rotationally connected to the inner wall of the machine shell, the air cylinder is connected with the push rod, the push rod is in rolling connection with the rotating swing arm, and a bottom die is installed at the end of the rotating swing arm and provided with a hollowed-out groove and a welding printing face; the ultrasonic assembly is connected to the machine shell, the ultrasonic assembly comprises a welding head, and the welding head comprises a tool bit and a pressing face; a copper pipe is mounted between the welding head and the bottom die; an ultrasonic assembly is started, a push rod is driven by an air cylinder to do linear motion, so that a rotary swing arm is linked with a bottom die to swing and be matched with a welding head, a hollowed-out groove relatively moves along a tool bit to be used for cutting off the copper pipe, and meanwhile, a pressing face is in contact fit with a welding printing face to be used for welding and sealing the copper pipe cut into two sections; according to the device, the copper pipe can be cut into two sections, the two sections of copper pipes are sealed and welded at the same time, operation is convenient, and the working efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of pipe sealing and cutting, and in particular relates to an ultrasonic pipe sealing welder. Background Art

[0002] Ultrasonic tube sealing welding machine can be used for the cutting and sealing process of copper tubes, and the cutting and sealing are completed at one time. The cutting is neat and the sealing performance is good, and it is widely used in refrigeration equipment such as air conditioners and refrigerators. The working principle of ultrasonic tube sealing welding machine: the copper tube is cut by the extrusion force between the welding head and the bottom mold, and the high-frequency vibration of the ultrasonic component is transmitted to the incision of the copper tube. Under the condition of pressure, the molecular layers of the upper and lower surfaces of the copper tube are fused and welded to complete the cutting and sealing of the copper tube.

[0003] In actual application, the inventor found that the existing ultrasonic copper tube sealing welding machine has at least the following technical problems: on the one hand, since the welding head cuts the copper tube into two parts during a single operation, and seals one of the parts at the same time, while the other part needs to be sealed separately, it is impossible to seal the two parts of the copper tube at the same time; on the other hand, as the number of welding times increases, the welding surface on the welding head is gradually worn flat, and the welding head needs to be replaced frequently, affecting work efficiency.

[0004] Based on this, it is necessary to improve the defects of the prior art to overcome the shortcomings in practical applications. Summary of the invention

[0005] Based on the above-mentioned shortcomings and deficiencies in the prior art, one of the objects of the present invention is to at least solve one or more of the above-mentioned problems in the prior art. In other words, one of the objects of the present invention is to provide an ultrasonic tube sealing welding machine that meets one or more of the above-mentioned needs.

[0006] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solutions:

[0007] The present invention provides an ultrasonic pipe sealing welder, comprising:

[0008] chassis;

[0009] A transmission assembly, the transmission assembly comprising a cylinder, a push rod and a rotating swing arm, the rotating swing arm is rotatably connected to the inner wall of the casing, the cylinder is connected to the push rod, the push rod is rollingly connected to the rotating swing arm, a bottom mold is installed at the end of the rotating swing arm, and the bottom mold has a hollow groove and a weld print surface; and

[0010] An ultrasonic component is connected to the housing, the ultrasonic component comprises a welding head, the welding head comprises a cutter head and a pressing surface; a copper tube is installed between the welding head and the bottom mold;

[0011] Start the ultrasonic component, and drive the push rod to move linearly through the cylinder, so that the rotating swing arm drives the bottom die to swing and cooperate with the welding head, enabling the hollow groove to move relative to the cutter head to cut the copper tube, and at the same time, the pressing surface contacts and cooperates with the welding imprint surface to weld and seal the two cut sections of the copper tube respectively.

[0012] As a preferred solution, four cutter heads are evenly arranged along the circumference of the welding head, and pressing surfaces are respectively arranged on both sides of each cutter head, and the cutter heads protrude from the pressing surfaces.

[0013] As a preferred solution, the bottom die is provided with a hollow groove, and welding imprint surfaces are respectively arranged on both sides of the hollow groove, and the hollow groove is recessed from the welding imprint surfaces.

[0014] As a preferred solution, an adjusting mechanism is provided at the end of the machine shell. The adjusting mechanism includes an adjusting seat and an adjusting lever. The adjusting lever is slidably matched with the adjusting seat, and the adjusting lever is used to adjust the welding position of the copper tube on the bottom die.

[0015] As a preferred solution, the ultrasonic component further includes a transducer and an amplitude modulator arranged in sequence along the axial direction. The transducer is connected to the amplitude modulator, and the amplitude modulator is connected to the welding head.

[0016] As a preferred solution, a limiting mechanism is arranged in the machine shell. The limiting mechanism includes a fixed block and an adjusting bolt. The fixed block is connected to the amplitude modulator, and the adjusting bolt is connected to the fixed block for limiting the ultrasonic component.

[0017] As a preferred solution, a fine-tuning mechanism is arranged in the machine shell. The fine-tuning mechanism includes a limiting rod, a limiting set screw and a locking set screw. The limiting set screw is installed in the rotating swing arm, the limiting set screw is in contact and cooperation with the limiting rod, and the locking set screw is in locking cooperation with the limiting set screw.

[0018] As a preferred solution, a guide roller is arranged in the machine shell, and the top plane of the push rod is in rolling cooperation with the guide roller to enable the push rod to move linearly.

[0019] As a preferred solution, a tension spring is arranged in the machine shell. One end of the tension spring is connected to the rotating swing arm, and the other end of the tension spring is connected to the machine shell.

[0020] As a preferred solution, a displacement sensor is arranged below the push rod, and the displacement sensor is used to measure the horizontal displacement of the push rod.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] The present invention provides an ultrasonic tube sealing and welding machine, which can cut a copper tube into two sections and simultaneously complete the sealing and welding of the two sections of the copper tube; as the number of welding times increases, the pressing surface of the welding head is gradually ground flat, and the pressing surface is replaced by rotating the welding head, without the need to frequently replace the welding head, which is convenient for operation and improves work efficiency.

[0023] The present invention provides an ultrasonic tube sealing and welding machine, which converts the linear motion in the horizontal direction into a rotating pressing action in the vertical direction through the labor-saving lever of the rotating swing arm. The device is small and portable, convenient for handheld operation, and improves the pressing pressure required for welding between the welding head and the bottom die through the labor-saving lever structure of the rotating swing arm to meet the welding requirements of different copper tubes and is convenient for handheld operation. Brief Description of the Drawings

[0024] In order 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 following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0025] Figure 1 It is a schematic diagram of the overall structure of the ultrasonic tube sealing and welding machine according to the embodiment of the present invention;

[0026] Figure 2 It is a schematic cross-sectional view of the ultrasonic tube sealing and welding machine according to the embodiment of the present invention;

[0027] Figure 3 It is a side view of the ultrasonic tube sealing and welding machine according to the embodiment of the present invention;

[0028] Figure 4 It is a partially enlarged view of the end of the ultrasonic tube sealing and welding machine according to the embodiment of the present invention;

[0029] Figure 5 It is Figure 4 the schematic diagram of the B-B cross-section in

[0030] Figure 6 It is a schematic diagram of the structure of the ultrasonic component and the welding head according to the embodiment of the present invention;

[0031] Figure 7 It is a side view of the welding head according to the embodiment of the present invention;

[0032] Figure 8 It is a schematic diagram of the structure of the rotating swing arm;

[0033] Figure 9 It is a schematic diagram of the state where the copper tube is cut, welded, and sealed;

[0034] In the figure: 1 housing, 11 displacement sensor, 12 guide roller, 2 drive assembly, 21 cylinder, 22 push rod, 23 rotating swing arm, 24 rotating shaft, 25 tension spring, 26 rolling bearing, 3 ultrasonic assembly, 31 welding head, 311 cutting head, 312 pressing surface, 32 amplitude modulator, 33 transducer, 34 cooling clamp, 4 bottom die, 41 hollow groove, 42 welding imprint surface, 5 adjusting mechanism, 51 adjusting seat, 52 adjusting lever, 7 limiting mechanism, 71 fixing block, 72 adjusting bolt, 8 fine-tuning mechanism, 81 limiting rod, 82 limiting setscrew, 83 locking setscrew. Detailed implementation manners

[0035] To more clearly illustrate the embodiments of the present invention, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying 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 be obtained based on these drawings, and other implementation manners can also be obtained.

[0036] In the description of the embodiments of the present invention, the orientation or positional relationships such as "upper", "lower", "front", "rear", etc. are based on the orientation or positional relationships shown in the accompanying drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation of the present invention. In addition, terms such as "connection" and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0037] Since the welding head in the existing tube sealing welder cuts the copper tube into two sections during a single operation and seals one of the copper tube sections at the same time, while the other copper tube section needs to be sealed separately, it is impossible to seal the two copper tube sections simultaneously. On the other hand, as the number of welding operations increases, the welding surface on the welding head is gradually ground flat, and the welding head needs to be frequently replaced, which affects the work efficiency.

[0038] To solve the problems existing in the prior art, according to some embodiments of the present application, please refer to Figures 1 to 9As shown in the figure, there is provided an ultrasonic tube sealing and welding machine, which includes a machine shell 1, a transmission assembly 2 and an ultrasonic assembly 3. The transmission assembly 2 includes a cylinder 21, a push rod 22 and a rotating swing arm 23. The rotating swing arm 23 is rotatably connected to the inner wall of the machine shell 1. The cylinder 21 is connected to the push rod 22, and the push rod 23 is in rolling connection with the rotating swing arm 23. A bottom die 4 is installed at the end of the rotating swing arm 23. The bottom die 4 has a hollow groove 41 and a welding surface 42. The ultrasonic assembly 3 is connected to the machine shell 1. The ultrasonic assembly 3 includes a welding head 31. The welding head 31 includes a cutting head 311 and a pressing surface 312. A copper tube is installed between the welding head 31 and the bottom die 4. The ultrasonic assembly 3 is started, and the push rod 22 is driven by the cylinder 21 to move linearly, so that the rotating swing arm 23 drives the bottom die 4 to swing and cooperate with the welding head 31, so that the hollow groove 41 moves relative to the cutting head 31 to cut off the copper tube A. At the same time, the pressing surface 312 is in contact and cooperation with the welding surface 42 to weld and seal the two cut copper tubes respectively.

[0039] Specifically, as Figures 6 to 7 shown, four cutting heads 311 are evenly arranged on the welding head 31 along the circumferential direction. Pressing surfaces 312 are respectively arranged on both sides of each cutting head 311, and the cutting head 311 protrudes from the pressing surface 312. When one of the cutting heads 311 is worn or damaged, the welding head 31 can be rotated and switched to another cutting head 311 for replacement, without replacing a new welding head 31, which can save costs and improve work efficiency. It should be noted that the number of cutting heads can also be set to two or three to meet different application scenarios, and can be specifically set according to actual needs, not limited to the number set above.

[0040] Since the welding head 31 needs to weld and press the copper tube, in order to improve the welding reliability and the sealing performance of the pressing, a protruding part 313 is provided on the pressing surface 312. The protruding part 313 has a certain arc, which can ensure the reliability of welding the copper tube and the sealing performance of pressing the copper tube.

[0041] Furthermore, the bottom die 4 is provided with a hollow groove 41. Welding surfaces 42 are respectively arranged on both sides of the hollow groove 41. The hollow groove 41 is recessed relative to the welding surface 42. Welding teeth 421 are provided on the welding surface 42. The friction force can be increased by the contact and cooperation between the welding teeth 421 and the copper tube. When the pressing surface 312 cuts off the copper tube and presses it tightly on the welding surface 42, the copper tube is welded and sealed by ultrasonic vibration.

[0042] After the cutting head 311 cooperates with the hollow groove 41 to cut off the copper tube, the cut copper tube waste can fall into the hollow groove 41, thereby realizing the function of collecting copper tube waste. The width of the hollow groove 41 is generally set to 3-5 mm, preferably set to 3.5 mm, and can be specifically set according to actual needs, not limited to the size of the width above.

[0043] The width of the hollow groove 41 is greater than the width of the cutting head 311, so that the cutting head 311 can move up and down smoothly along the hollow groove 41. The two sections of the copper tube cut by the cutting force between the cutting surfaces on both sides of the cutting head 311 and the hollow groove 41 can prevent the cutting head 311 from deviating from the hollow groove 41 due to uneven force during cutting, improving the cutting effect of the copper tube. At the same time, the pressing surfaces 312 on both sides of the cutting head 311 cooperate with the welding imprint surface 42 to ultrasonically weld the two cut sections of the copper tube to seal the two sections of the copper tube simultaneously.

[0044] As Figure 9 shown, the copper tube A is cut into a copper tube A1 and a copper tube A2. The end of the copper tube A1 forms a welding position A11 after ultrasonic welding, and the end of the copper tube A2 forms a welding position A21 after ultrasonic welding. The two sections of the copper tube are sealed and welded through the welding position A11 and the welding position A21. The cut part between the two sections of the copper tube forms a waste area S, and the width of the waste area S is less than the width of the hollow groove.

[0045] When the welding head 31 and the bottom die 4 work a certain number of times, the pressing surface 312 of the welding head 31 and the welding imprint surface 42 of the bottom die 4 will wear at the corresponding welding positions. Since the pressing surface 312 and the welding imprint surface 42 have a certain length, the placement position of the copper tube can be adjusted to ensure the welding effect.

[0046] Due to the differences in the pipe diameters of different copper tubes, it is impossible to adjust the position according to different copper tubes when placing the copper tube, and the adaptability is poor.

[0047] Therefore, an adjusting mechanism 5 is provided at the end of the machine shell 1. The adjusting mechanism 5 includes an adjusting seat 51 and an adjusting lever 52. The adjusting lever 52 is slidably matched with the adjusting seat 51 to adjust the position of the adjusting lever 52 on the adjusting seat 51, and further adjust the welding position of the copper tube on the bottom die 4 to play a role in positioning the copper tube.

[0048] Furthermore, several adjusting teeth 511 are provided on the adjusting seat 51. The upper end of the adjusting lever 52 moves along the adjusting teeth 511, and each adjusting tooth 511 corresponds to a gear. The lower end of the adjusting lever 52 moves along the bottom die 4 so that the adjusting lever 52 abuts against the placed copper tube. When placing the copper tube between the welding head 31 and the bottom die 4, the position can be adjusted according to the pipe diameters of different copper tubes to cut and weld copper tubes with different pipe diameters, improving the applicable range of the copper tube.

[0049] The ultrasonic component 3 in this embodiment further includes a transducer 33 and an amplitude modulator 32 arranged in sequence along the axial direction. The transducer 33 is connected to the amplitude modulator 32 by bolts, and the amplitude modulator 32 is connected to the welding head 31 by bolts.

[0050] Furthermore, due to the limited space inside the casing and the compact installation layout of various components, the ultrasonic components are installed in the casing in sequence. When welding the copper tube, the welding head needs to vibrate at high frequency. In order to avoid the end of the welding head from tilting, which causes the welding position to shift, a limiting mechanism 7 is provided inside the casing 1 to limit the ultrasonic component 3 and ensure the stability of the ultrasonic component 3 during welding.

[0051] Furthermore, the limiting mechanism 7 includes a fixed block 72 and an adjusting bolt 72, the fixed block 71 is connected to the amplitude modulator 32, and the adjusting bolt 72 is connected to the fixed block 71, which is used to limit the ultrasonic component 3. The fixed block 71 is clamped at the transition connection between the welding head 31 and the amplitude modulator 32, and the locking degree of the adjusting bolt is controlled by rotation to achieve the degree of compression of the fixed block 72 on the amplitude modulator 32, so as to limit and fix the amplitude modulator 32, thereby limiting the ultrasonic component 3, and preventing the welding head 31 from shaking or the welding position from shifting when working.

[0052] The transmission assembly 2 in this embodiment includes a cylinder 21, a push rod 22 and a rotating swing arm 23. The rotating swing arm 23 is rotatably connected to the inner wall of the casing 1. The cylinder 21 is connected to the push rod 22. The push rod 22 is rollingly connected to the rotating swing arm 23. The end of the rotating swing arm 23 is installed with a bottom mold 4.

[0053] Specifically, the rotating swing arm 23 is rotatably connected to the inner wall of the casing 1, the cylinder 21 is transmission-connected to one end of the push rod 22, the other end of the push rod 22 is rollingly connected to one end of the rotating swing arm 23, and the other end of the rotating swing arm 23 is fixedly connected to the bottom mold 4; the push rod 22 is driven by the cylinder 21 to move linearly, so as to link the rotating swing arm 23 to rotate, so that the bottom mold 4 and the welding head 31 press the copper tube; the ultrasonic component is started, and the welding head 31 cooperates with the bottom mold 4 to complete the welding and sealing of the two cut copper tubes respectively.

[0054] In order to ensure that the bottom mold 4 can swing smoothly and press with the welding head, a rolling bearing 26 is installed at one end of the rotating swing arm 23, and one end of the push rod 22 has an inclined portion, which is in rolling cooperation with the rolling bearing 26.

[0055] Specifically, the push rod 22 and the piston rod of the cylinder 21 are fixed together, and the inclined surface on the push rod 22 maintains contact with the rolling bearing 26. When the push rod 21 moves to the left, the inclined surface presses the rolling bearing 26, so that the right side of the rotating swing arm 23 is downward and the left side is upward, driving the bottom mold 4 to rotate upward and cooperate with the welding head 31 to cut the copper tube, and at the same time, the two cut copper tubes are sealed by ultrasonic welding.

[0056] Further, the inclined portion is provided at the front end of the push rod 22. The inclined portion has a triangular structure, and the angle of the inclined portion can be set to 20-45°, preferably set to 30°, and can be set according to actual needs.

[0057] Further, as Figure 8 shown, the rotary swing arm 23 is rotatably connected to the inner wall of the housing 1. The rotary swing arm 23 includes a first moving arm 231 and a second moving arm 232. The front and rear inner walls of the housing 1 are connected with a rotating shaft, and the rotary swing arm rotates relative to the housing 1 through the rotating shaft. The length of the first moving arm is greater than that of the second moving arm, and the rotary swing arm forms a labor-saving lever structure.

[0058] In the ultrasonic copper tube sealing and welding machine of this embodiment, in a narrow and compact space of the machine body, through the labor-saving lever of the rotary swing arm, the linear motion in the horizontal direction is converted into a rotary pressing action in the vertical direction. The device is small and portable, convenient for hand-held operation, and the labor-saving lever structure of the rotary swing arm improves the pressing force required for welding between the welding head and the bottom die to meet the welding requirements of different copper tubes.

[0059] Through the extension or retraction of the piston rod of the cylinder 21, the push rod 22 is driven to move back and forth. The triangular inclined portion at the front end of the push rod 22 contacts the rolling bearing 26. Through the lever structure of the rotary swing arm 23, the second moving arm of the rotary swing arm 23 moves upward, and drives the bottom die 4 to move upward to cooperate with the welding head to cut the copper tube. Under the combined action of the ultrasonic components, the welding head simultaneously welds and seals the two cut copper tubes through high-frequency vibration.

[0060] A tension spring 25 is provided in the housing. One end of the tension spring 25 is connected to the rotary swing arm 23, and the other end of the tension spring 25 is connected to the housing 1. When the push rod 22 drives the rotary swing arm 23 to rotate, to link the bottom die 4 and the welding head 31 to cooperate to cut and weld the copper tube. At this time, the tension spring 25 is stretched as the rotary swing arm 23 rotates. When the copper tube welding is completed, the push rod 22 returns to the initial position. At this time, the rotary swing arm 23 can be reset under the action of the tension spring 25, and the bottom die 4 and the welding head 31 are linked to separate.

[0061] Further, a guide roller 12 is provided in the housing 1. The upper surface of the push rod 22 slides along the guide roller 12, so that the push rod 22 moves in a straight line. In addition, the push rod 22 can be supported through the guide roller 12 to ensure that the push rod 22 moves in a straight line to improve the stability during the movement process.

[0062] In order to ensure the accuracy of cutting and welding, the position of the bottom film needs to be precisely controlled. For this reason, a fine adjustment mechanism 8 is also provided in the housing 1, as Figures 4 to 5As shown in the figure, the fine-tuning mechanism 8 includes a limit rod 818, a limit set screw 82, and a locking set screw 83. The limit rod 81 is connected to the inner walls of the front and rear sides of the casing 1. The limit set screw 82 is installed in the rotary swing arm 23 and is threadedly connected to the rotary swing arm 23. The limit set screw 82 is arranged in the up and down direction, and the upper end of the limit set screw 83 is in contact and cooperation with the limit rod 81. Locking set screws 83 are respectively arranged on both sides of the limit set screw 82. The locking set screws 83 are arranged in the rotary swing arm 23 and are threadedly connected to the rotary swing arm 23. The locking set screws 83 are arranged in the front and rear direction, and the end parts of the two locking set screws 83 are respectively in contact and cooperation with the limit set screw 82 for locking the limit set screw 82.

[0063] Further, a section of smooth rod is provided in the middle of the limit set screw 82. When the limit set screw 82 moves in the up and down direction, the contact position between the end part of the locking set screw 83 and the smooth rod is adjusted. When the upper end of the limit set screw 82 is in contact with the limit rod 81, the rotational position of the rotary swing arm 23 can be adjusted, and further the welding position of the bottom die 4 can be finely adjusted.

[0064] Further, as Figure 8 shown, the rotary swing arm 23 is provided with a mounting hole 233 for arranging the limit set screw 82 and the locking set screw 83 in the mounting hole 233. The mounting hole 233 is exposed outside the casing 1. By adjusting the limit set screw 82 and the locking set screw 83 outside the casing 1, the moving position of the rotary swing arm 23 can be finely adjusted.

[0065] In order to facilitate the precise control of the moving distance of the push rod 22, a displacement sensor 11 is arranged below the push rod 22. The displacement sensor 11 is used to measure the horizontal displacement of the push rod 22. Since there is a corresponding relationship between the horizontal displacement of the push rod 22, the rotation angle of the rotary swing arm 23, and the upward displacement of the bottom die 4, the thickness of the copper pipe pressed by the upward movement of the bottom die 4 can be accurately fed back through the displacement sensor 11.

[0066] Since the space inside the casing 1 is narrow and compact, the transducer generates heat during operation. If the transducer is not cooled, other components inside the casing will be damaged after a long use time, reducing the service life.

[0067] By providing a cooling clamp 34 inside the casing 1, the cooling clamp 34 is located outside the transducer 33. The cooling clamp 34 has a ventilation port, and the ventilation port is arranged facing the transducer 33. The ventilation port is connected to an external air-cooling device through a pipeline to blow and cool the transducer 33, thereby ensuring the stable performance and service life of the transducer 33.

[0068] The implementation process of the ultrasonic copper pipe sealing and welding machine provided in this embodiment is as follows:

[0069] First, place the copper pipe between the welding head and the bottom die, and adjust the welding position between the bottom die and the welding head through the fine-tuning mechanism to ensure the precision when welding the copper pipe. Then, extend the piston rod of the cylinder to drive the push rod to move. The inclined surface at the front end of the push rod contacts the rolling bearing, and the rolling bearing drives the right side of the rotating swing arm to move downward, while the left side of the rotating swing arm moves upward, driving the bottom die to move upward and cooperate with the welding head to cut off the copper pipe. At the same time, through the high-frequency vibration of the ultrasonic component, high-frequency friction between the welding head and the bottom die welds and seals the two cut copper pipes simultaneously.

[0070] The above description only elaborates in detail on the preferred embodiments and principles of the present invention. For those of ordinary skill in the art, according to the idea provided by the present invention, there will be changes in the specific implementation manners, and these changes should also be regarded as the protection scope of the present invention.

Claims

1. An ultrasonic tube sealing and welding machine, characterized in that, Comprising: A housing; A transmission assembly, the transmission assembly includes a cylinder, a push rod and a rotating swing arm, the rotating swing arm is rotatably connected to the inner wall of the housing, the cylinder is connected to the push rod, the push rod is in rolling connection with the rotating swing arm, a bottom mold is installed at the end of the rotating swing arm, and the bottom mold has a hollow groove and a welding imprint surface; and An ultrasonic assembly, connected to the housing, the ultrasonic assembly includes a welding head, and the welding head includes a cutter head and a pressing surface; a copper tube is installed between the welding head and the bottom mold; Start the ultrasonic assembly, and drive the push rod to move linearly through the cylinder, so that the rotating swing arm drives the bottom mold to swing and cooperate with the welding head, so that the hollow groove moves relative to the cutter head to cut the copper tube, and at the same time the pressing surface is in contact and cooperation with the welding imprint surface to respectively weld and seal the two cut sections of the copper tube.

2. The ultrasonic tube sealing and welding machine according to claim 1, characterized in that, Four cutter heads are evenly arranged along the circumference of the welding head, and pressing surfaces are respectively arranged on both sides of each cutter head, and the cutter head protrudes from the pressing surface.

3. The ultrasonic tube sealing and welding machine according to claim 1, characterized in that, The bottom mold is provided with a hollow groove, and welding imprint surfaces are respectively arranged on both sides of the hollow groove, and the hollow groove is recessed from the welding imprint surface.

4. The ultrasonic tube sealing and welding machine according to claim 1, characterized in that, An adjusting mechanism is provided at the end of the housing, the adjusting mechanism includes an adjusting seat and an adjusting lever, the adjusting lever is in sliding fit with the adjusting seat, and the welding position of the copper tube on the bottom mold is adjusted through the adjusting lever.

5. The ultrasonic tube sealing and welding machine according to claim 1, characterized in that, The ultrasonic assembly further includes a transducer and an amplitude modulator arranged in sequence along the axis, the transducer is connected to the amplitude modulator, and the amplitude modulator is connected to the welding head.

6. The ultrasonic tube sealing and welding machine according to claim 5, characterized in that, A limiting mechanism is arranged in the housing, the limiting mechanism includes a fixed block and an adjusting bolt, the fixed block is connected to the amplitude modulator, and the adjusting bolt is connected to the fixed block for limiting the ultrasonic assembly.

7. The ultrasonic tube sealing and welding machine according to claim 1, characterized in that, A fine-tuning mechanism is arranged in the housing, the fine-tuning mechanism includes a limiting rod, a limiting set screw and a locking set screw, the limiting set screw is installed in the rotating swing arm, the limiting set screw is in contact and cooperation with the limiting rod, and the locking set screw is in locking cooperation with the limiting set screw.

8. The ultrasonic tube sealing and welding machine according to claim 1, characterized in that, A guide roller is arranged in the housing, and the top plane of the push rod is in rolling connection with the guide roller so that the push rod moves linearly.

9. The ultrasonic tube sealing and welding machine according to claim 1, characterized in that, A tension spring is arranged in the housing, one end of the tension spring is connected to the rotating swing arm, and the other end of the tension spring is connected to the housing.

10. The ultrasonic tube sealing and welding machine according to claim 1, characterized in that, A displacement sensor is arranged below the push rod, and the displacement sensor is used to measure the horizontal displacement of the push rod.

Images