Small steel pipe ring penetrating device

Abstract

The utility model relates to the technical field of liquid accumulator machining, in particular to a small steel pipe ring penetrating device. The device comprises a rack, a ring sleeving mechanism, two blowing mechanisms, a ring pressing mechanism, two bearing plates which are installed on the rack and arranged in a front-back spaced mode, a transfer plate arranged between the two bearing plates, and a first movement driving part which is installed on the rack and used for driving the transfer plate to move up and down and left and right. The bearing plate is provided with six bearing grooves which are arranged at equal intervals in the left-right direction and used for bearing pipe bodies, the transfer plate is provided with six transfer grooves which are arranged at equal intervals in the left-right direction and used for bearing pipe bodies, and the transfer grooves and the bearing grooves are arranged in a one-to-one correspondence mode. The ring sleeving mechanism is arranged in front of the second bearing groove and used for sleeving the pipe body with the welding ring, the two blowing mechanisms are correspondingly arranged behind the third bearing groove and the fourth bearing groove and used for blowing the welding ring to the flaring part, and the ring pressing mechanism is arranged behind the fifth bearing groove and used for pressing the welding ring to the flaring part. According to the utility model, the manual participation rate can be reduced, and the welding ring is prevented from falling off.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid accumulator processing technical field especially a small steel pipe ring device. BACKGROUND

[0002] The liquid accumulator is a key component in the refrigeration system, which is composed of a cylinder, an inlet pipe, an outlet pipe, and a filter screen. Among these components, the small steel pipe plays an important role in transporting refrigerant. It is usually used as an inlet pipe or an outlet pipe. The main function of the small steel pipe is to ensure the smooth flow of refrigerant and prevent liquid refrigerant from flowing directly into the compressor, thereby avoiding the occurrence of liquid hammer phenomenon. This is crucial for protecting the compressor and improving the refrigeration efficiency.

[0003] In the manufacturing process of the liquid accumulator, the connection process of the small steel pipe is a key step, which can be achieved by using flame brazing technology. This technology involves expanding one end of the small steel pipe and fitting a welding ring on the pipe body before welding, ensuring that the welding ring is clamped at the expanded portion. During the welding process, the welding ring melts and fills the gap between the expanded portion and the cylinder, achieving a firm connection between the small steel pipe and the liquid accumulator cylinder. This connection method not only ensures the sealing of the refrigerant but also improves the stability and reliability of the entire system.

[0004] However, current welding ring fitting operations mostly rely on manual labor, which not only increases labor intensity but also leads to inconsistent operation, resulting in the welding ring falling off the expanded portion or falling through the pipe body during transportation, and even causing welding failure. SUMMARY

[0005] The technical problem to be solved by the utility model is to provide a small steel pipe ring device that can reduce the involvement of manual labor and prevent the welding ring from falling off.

[0006] To solve the above technical problems, the small steel pipe ring device of the utility model comprises a rack, a sleeve ring mechanism, two air blowing mechanisms, a ring pressing mechanism, two support plates installed on the rack and spaced apart front and back, a transfer plate arranged between the two support plates, and a first moving drive installed on the rack for driving the transfer plate to move up and down and left and right.

[0007] As the improvement of the above-mentioned scheme, the supporting groove and the transfer groove each comprise a circular-arc groove and a guide groove above the circular-arc groove and communicated with the circular-arc groove, the width of the guide groove gradually decreases from top to bottom, and the circular-arc surface of the circular-arc groove matches the outer side of the pipe body.

[0008] As the improvement of the above-mentioned scheme, the front supporting plate is provided with a limiting plate arranged in front of the fifth supporting groove.

[0009] As the improvement of the above-mentioned scheme, the sleeve ring mechanism comprises a feeding block sliding forward and backward relative to the rack and a second moving driving element installed on the rack and used for driving the feeding block to move forward and backward and up and down, the feeding block is provided with a feeding groove, and the feeding groove is used for supporting the welding ring arranged vertically and with the axial center extending forward and backward.

[0010] As the improvement of the above-mentioned scheme, the blowing mechanism comprises a plurality of blowing pipes installed on the rack and used for blowing air to the outer side of the pipe body and higher than the supporting plate and the transfer plate.

[0011] As the improvement of the above-mentioned scheme, the pressing ring mechanism comprises a clamping jaw slidingly connected to the rack and used for clamping or loosening the outer side of the welding ring and a translation driving element installed on the rack and used for driving the clamping jaw to move forward and backward.

[0012] As the improvement of the above-mentioned scheme, the two supporting plates and the end part close to the sixth supporting groove are provided with a discharging inclined surface arranged downward and outward from inside.

[0013] The utility model discloses a small steel pipe ring penetrating device, which has the following beneficial effects:

[0014] The sleeve ring mechanism, the blowing mechanism, the pressing ring mechanism, the supporting plate, the transfer plate and the first moving driving element are cooperated with each other, the small steel pipe ring penetrating and the pressing ring can be realized by the machine, the artificial participation rate is reduced, the welding ring is fixed on the connecting part between the pipe body and the flared part, the welding ring is prevented from falling off, the consistency of the pressing ring effect is high, and the probability of subsequent failure of the small steel pipe is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure schematic plan view of the small steel pipe.

[0016] Figure 2 It is a structure schematic front view of the small steel pipe ring penetrating device in the embodiment of the utility model.

[0017] Figure 3 It is a structure schematic plan view of the small steel pipe ring penetrating device in the embodiment of the utility model (with the small steel pipe placed).

[0018] Figure 4 It is a structure schematic view of the supporting groove in the embodiment of the utility model.

[0019] Figure 5 is a working principle diagram of the sleeve ring mechanism in the embodiment of the utility model;

[0020] Figure 6 is a structure schematic plan view of the feeding block in the embodiment of the utility model;

[0021] Figure 7 is a structure schematic front view of the sleeve ring mechanism in the embodiment of the utility model;

[0022] Figure 8 is a working principle diagram of the blowing mechanism in the embodiment of the utility model;

[0023] Figure 9 is a working principle diagram of the pressing ring mechanism in the embodiment of the utility model.

[0024] In the drawings:

[0025] 110, pipe body; 120, flared portion;

[0026] 200, rack;

[0027] 300, sleeve ring mechanism; 310, feeding block; 311, feeding groove; 320, second moving driving part;

[0028] 400, blowing mechanism; 410, blowing pipe;

[0029] 500, pressing ring mechanism; 510, clamping jaw; 520, translation driving part;

[0030] 600, supporting plate; 610, supporting groove; 611, circular ring groove; 612, guide groove; 620, limiting plate; 630, discharging inclined surface;

[0031] 700, transfer plate; 710, transfer groove;

[0032] 800, first moving driving part. DETAILED DESCRIPTION

[0033] The utility model will be further described in combination with the drawings and specific embodiments, so that the technical idea of the utility model claimed is more clearly understood. Only this declaration, the up, down, left, right, front, back, inside, outside and other orientation words appearing in the text or about to appear in the utility model are based on the drawings of the utility model, and it is not a specific limitation of the utility model.

[0034] It should be noted that, for example, Figure 1As shown, the small steel pipe threading device of this utility model targets a small steel pipe including a pipe body 110 extending forward and backward, and a flared portion 120 fixed at the front end of the pipe body 110. In fact, the connection between the flared portion 120 and the front end of the pipe body 110 has a connecting portion with an outer diameter that gradually decreases from front to back, formed during the flaring process. The inner diameter of the welding ring to be added is larger than the outer diameter of the pipe body 110 but smaller than the inner diameter of the flared portion 120. The welding ring is inserted into the pipe body 110 from the rear and pressed against the connecting portion under pressure. Under the guiding action of the pressure pressing the welding ring forward against the connecting portion, the welding ring expands and deforms. After the pressure is removed, the welding ring tightens the connecting portion, preventing the welding ring from returning to the pipe body 110, thus preparing for subsequent welding of the small steel pipe. In this utility model, the small steel pipe maintains... Figure 1 The position shown indicates the position for completing the entire welding ring insertion operation.

[0035] like Figures 2 to 9 As shown in the figure, a small steel pipe threading device according to an embodiment of the present invention includes a frame 200, a ring-fitting mechanism 300, two air-blowing mechanisms 400, a ring-pressing mechanism 500, two support plates 600 mounted on the frame 200 and spaced apart, a transfer plate 700 disposed between the two support plates 600, and a first moving drive component 800 mounted on the frame 200 for driving the transfer plate 700 to move up and down and left and right. In practice, the first moving drive component 800 can be one of a dual-axis translation stage, two mutually perpendicular single-axis translation stages, or two mutually perpendicular power push rods, etc., capable of driving the transfer plate 700 to move up and down and left and right.

[0036] The support plate 600 has six equally spaced support grooves 610 for supporting the support body 110, and the transfer plate 700 has six equally spaced transfer grooves 710 for supporting the support body 110. The transfer grooves 710 and support grooves 610 are arranged in a one-to-one correspondence, meaning the distance between two adjacent transfer grooves 710 is equal to the distance between two adjacent support grooves 610. In practice, the support grooves 610 are used to support the small steel pipe, preventing it from rolling left and right, for loading, welding ring application, and unloading of the small steel pipe. Figure 2 The first to sixth support slots 610 and the first to sixth transfer slots 710 are arranged sequentially from left to right. Initially, the transfer slots of the transfer plate 700 are set below the support slots 610 one by one. When it is necessary to transfer the small steel pipe into the next support slot 610, the first moving drive component 800 drives the transfer plate 700 to move upward, the transfer slot 710 contacts the small steel pipe and is lifted away from the support slot 610. The first moving drive component 800 drives the transfer plate 700 to move to the right by the distance between two adjacent support slots 610. Then, the first moving drive component 800 drives the transfer plate 700 to move downward, and the small steel pipe falls into the support slot 610. The first moving drive frame drives the moving plate to move to the left and reset, realizing the gradual transfer of the small steel pipe.

[0037] The sleeve ring mechanism 300 is arranged in front of the second supporting groove 610 for sleeving the welding ring on the pipe body 110. In fact, the sleeve ring mechanism 300 can be a sleeve ring manipulator, when the small steel pipe is located in the second supporting groove 610, the sleeve ring mechanism 300 sleeves the welding ring on the pipe body 110 and the welding ring is located behind the supporting plate 600 behind.

[0038] Two blowing mechanisms 400 are arranged behind the third and fourth supporting grooves 610 for blowing the welding ring to the flared portion 120. In fact, the blowing mechanism 400 is used for blowing the welding ring on the pipe body 110 to make the welding ring move forward along the pipe body 110; when the small steel pipe is located above the second supporting groove 610, one blowing mechanism 400 blows the welding ring forward, so that the welding ring is transferred between the supporting plates 600 behind; when the small steel pipe is located in the third supporting groove 610, one blowing mechanism 400 blows the welding ring forward, so that the welding ring is transferred in front of the supporting plate 600 in front.

[0039] The ring pressing mechanism 500 is arranged behind the fifth supporting groove 610 for pressing the welding ring to the flared portion 120. In fact, the ring pressing mechanism 500 can be a pressing manipulator, which is used for clamping the outside of the welding ring and dragging the welding ring to the flared portion 120, so that the welding ring is fixed at the connecting portion, and the consistency of the ring pressing effect is high, which ensures that the welding ring will not be separated from the connecting portion and fall back on the pipe body 110, avoiding falling during transportation.

[0040] It should be noted that the first supporting groove 610 is used for feeding the small steel pipe, and the sixth supporting groove 610 is used for discharging the small steel pipe, so as to avoid the influence of feeding and discharging operations on the sleeve ring, blowing ring and ring pressing.

[0041] The utility model discloses a rack 200, sleeve ring mechanism 300, blowing mechanism 400, ring pressing mechanism 500, supporting plate 600, transfer plate 700 and first mobile drive 800 cooperate with each other, can realize the ring wearing and ring pressing of small steel pipe through the machine, reduce the artificial participation rate, make the welding ring fixed between the pipe body 110 and the flared portion 120, avoid the welding ring to fall off, and the consistency of the ring pressing effect is high, which reduces the probability of subsequent failure of the small steel pipe.

[0042] Specifically, the supporting groove 610 and the transfer groove 710 each preferably comprises a circular arc groove and a guide groove 612 located above the circular arc groove and communicating with the circular groove 611, the width of the guide groove 612 gradually decreases from top to bottom, and the circular arc surface of the circular arc groove matches the outer side of the pipe body 110. When the small steel pipe is placed into the supporting groove 610 or the transfer groove 710, it first passes through the guide groove 612, which plays a guiding and positioning role, and then enters the circular groove 611, which prevents the small steel pipe from rolling left and right, reduces the falling probability during transfer, ensures the positioning accuracy of the small steel pipe in the supporting groove 610 and the transfer groove 710, and improves the success rate of transfer.

[0043] It should be noted that the front supporting plate 600 is preferably provided with a limiting plate 620 arranged in front of the fifth supporting groove 610. When the ring pressing mechanism 500 drives the welding ring to press against the flared portion 120, the welding ring abuts against the connecting portion to drive the entire small steel pipe to move forward, which is easy to cause the ring pressing to fail. Therefore, the limiting plate 620 prevents the small steel pipe in the fifth supporting groove 610 from moving forward, ensuring the ring pressing effect.

[0044] It is worth mentioning that the sleeve ring mechanism 300 preferably comprises a feeding block 310 sliding forward and backward relative to the rack 200 and a second moving driving member 320 installed on the rack 200 for driving the feeding block 310 to move forward and backward and up and down, and the feeding block 310 is provided with a feeding groove 311 for supporting the welding ring arranged vertically with the axis extending forward and backward. In fact, the second moving driving member 320 can be one of a double-axis translation stage, two single-axis translation stages perpendicular to each other, or two power push rods perpendicular to each other, which can drive the feeding block 310 to move up and down and left and right. Figure 6 and Figure 7 As shown in the drawings, the feeding groove 311 is arranged with an upward opening, which can accommodate the welding ring arranged vertically with the axis extending forward and backward, and the feeding block 310 is further provided with a displacement notch on both sides thereof, which has a width greater than the outer diameter of the pipe body 110 and less than the inner diameter of the welding ring, so as to allow the pipe body 110 to be inserted. Figure 5 As shown in the drawings, when the sleeve ring needs to be sleeved on the pipe body 110, the welding ring is placed into the feeding groove 311, the second moving driving member 320 drives the feeding block 310 to move forward, so that the welding ring is sleeved on the pipe body 110, the second moving driving member 320 drives the feeding block 310 to move downward, so that the welding ring sleeved on the pipe body 110 is separated from the feeding groove 311 and remains on the pipe body 110, the second moving driving member 320 drives the feeding block 310 to move backward, and the second moving driving member 320 drives the feeding block 310 to move upward to reset, thereby realizing the sleeve ring operation on the pipe body 110.

[0045] Specifically, the air blowing mechanism 400 preferably includes multiple air blowing pipes 410 mounted on the frame 200. The air blowing pipes 410 are higher than the support plate 600 and the transfer plate 700 and are used to blow air onto the outside of the tube body 110. In fact, the air blowing pipes 410 blow air toward the welding ring on the outside of the tube body 110 within the support groove 610 or the transfer groove 710. The airflow drives the welding ring forward. Furthermore, the air blowing pipes 410 are higher than the support plate 600 and the transfer plate 700 to prevent the transfer plate 700 from blocking the support plate 600, ensuring that the welding ring can be blown forward along the tube body 110.

[0046] It should be noted that the ring pressing mechanism 500 preferably includes a gripper 510 slidably connected to the frame 200 for clamping or releasing the outer side of the welding ring, and a translation drive 520 mounted on the frame 200 for driving the gripper 510 to move back and forth. The gripper 510 can be an opening and closing mechanical gripper capable of clamping or releasing the outer side of the welding ring. The translation drive 520 can be a single-axis translation stage or a power push rod, capable of driving the gripper 510 to move back and forth; initially, the clamping is in an open state. When ring pressing is required, the gripper 510 closes to clamp the outer side of the welding ring, and the translation drive 520 drives the gripper 510 to move backward. During the backward movement, the welding ring is pressed into the connecting part, and the ring pressing effect is highly consistent, preventing the welding ring from loosening and returning to the tube body 110.

[0047] Furthermore, the ends of the two support plates 600 and near the sixth support groove 610 are preferably provided with unloading ramps 630 that slope downwards from the inside out. For example... Figure 2 As shown, the sixth support groove 610 is located on the right side, and the suction slope is located at the right end of the support plate 600, and is inclined downward from left to right. When the tube body 110 of the small steel pipe is placed on the discharge slope 630, the tube body 110 rolls down along the discharge slope 630 under the action of weight, thereby realizing the discharge of the small steel pipe.

[0048] The above are merely specific embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A device for threading a small steel pipe, the small steel pipe comprising a pipe body extending in a front-rear direction and a flared portion fixed to a front end of the pipe body, characterized by: The small steel pipe ring passing device comprises a frame, a sleeve ring mechanism, two air blowing mechanisms, a pressing ring mechanism, two support plates installed on the frame and arranged at intervals in front and back, a transfer plate arranged between the two support plates, and a first moving driving member installed on the frame for driving the transfer plate to move up and down and left and right; the support plate is provided with six support grooves arranged at equal intervals left and right and used for supporting the pipe body, the transfer plate is provided with six transfer grooves arranged at equal intervals left and right and used for supporting the pipe body, and the transfer grooves and the support grooves are arranged in one-to-one correspondence; the sleeve ring mechanism is arranged in front of the second support groove for sleeving the welding ring into the pipe body, the two air blowing mechanisms are arranged at the rear of the third and fourth support grooves for blowing the welding ring to the flared portion, and the pressing ring mechanism is arranged at the rear of the fifth support groove for pressing the welding ring against the flared portion.

2. A device for threading a small steel pipe as claimed in claim 1, characterized in that: The support groove and the transfer groove each comprise a circular arc groove and a guide groove arranged above the circular arc groove and in communication with the circular arc groove, the width of the guide groove gradually decreases from top to bottom, and the circular arc surface of the circular arc groove matches the outer side of the pipe body.

3. A device for threading a small steel tube as claimed in claim 2, characterized in that: The front support plate is provided with a limiting plate arranged in front of the fifth support groove.

4. A device for threading a small steel pipe as claimed in claim 1, characterized in that: The sleeve ring mechanism comprises a feeding block sliding forward and backward relative to the frame and a second moving driving member installed on the frame for driving the feeding block to move forward and backward and up and down, the feeding block is provided with a feeding groove, and the feeding groove is used for supporting the welding ring arranged vertically and with the shaft center extending forward and backward.

5. A device for threading a small steel pipe as claimed in claim 1, characterized in that: The air blowing mechanism comprises a plurality of air blowing pipes installed on the frame, the air blowing pipes are higher than the support plate and the transfer plate and are used for blowing air to the outer side of the pipe body.

6. A device for threading a small steel pipe as claimed in claim 1, characterized in that: The pressing ring mechanism comprises a clamping jaw slidingly connected to the frame and used for clamping or releasing the outer side of the welding ring and a translation driving member installed on the frame for driving the clamping jaw to move forward and backward.

7. A device for threading a small steel pipe as claimed in claim 1, characterized in that: The two support plates and the end portion close to the sixth support groove are provided with a discharging inclined surface arranged downward and outward from inside.

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