Positioning and forming device for chambering hole in side wall of pipeline

Abstract

The invention discloses a positioning forming device for chambering a pipeline side wall hole, which relates to the technical field of pipe fitting processing and comprises a chambering mechanism arranged at the end part of a processing platform, a first clamping device arranged above the chambering mechanism and a second clamping device arranged in the middle of the processing platform, the first clamping device clamps one end of a pipeline, the reaming shaft extends into the pipeline along one end of the pipeline, the movable punching body is pushed by the first driving device to do reciprocating motion, so that the reaming die body is controlled to broach small holes in the pipeline, the reaming die body does not deflect in the reaming process, and the reaming efficiency is improved. The second clamping device clamps the reaming position of the pipeline to prevent the pipeline from swinging during reaming and is matched with the first clamping device, after single-time reaming is completed, the second clamping device loosens the clamping die, the first clamping device clamps the pipeline to linearly move by a certain distance, small holes in linear arrangement are reamed, and the pipeline is prevented from swinging during reaming. And the production efficiency is higher.

Description

Technical Field

[0001] The invention relates to the technical field of pipe fitting processing, and in particular to a positioning and forming device for expanding a side wall hole of a pipeline. Background Art

[0002] When manufacturing the condensing pipe of the refrigeration equipment, holes with reasonable spacing and size need to be arranged on the condensing pipe. The traditional processing method is to open a small hole on the main pipe, and then place a conical reamer inside the main pipe, with the small end of the reamer facing the small hole, and then connect the small end of the reamer to the force-applying mechanism outside the small hole. The force-applying mechanism pulls the reamer out of the small hole, so that the reamer expands the small hole into a flanged hole that turns outward, and then the flanged hole is trimmed; In the existing partial hole expansion process, hole expansion is difficult for technicians to operate, and manual operation of the hole expander is required to align the axial direction of the hole expander with the small hole. The hole expansion efficiency is low, and during the hole expansion process, the hole expander is prone to cause its own axial direction to be skewed while applying force, which can easily cause the wall thickness and length of the flanged hole to be uneven. The flanged hole formed by the hole expansion process requires a secondary counterattack, which is difficult to meet the demand. Summary of the invention

[0003] In view of the technical defects existing in the background technology, the present invention proposes a positioning and forming device for expanding the side wall hole of a pipeline, which solves the above technical problems and meets the actual needs. The specific technical solution is as follows: A positioning and forming device for expanding a side wall hole of a pipeline, comprising a processing platform, an expanding mechanism arranged at either end of the processing platform, a first clamping device arranged on the expanding mechanism in a direction toward the middle of the processing platform, and a second clamping device arranged in the middle of the processing platform; The processing end of the reaming mechanism extends toward the second clamping device, and the reaming mechanism includes a fixed base arranged at the end of the processing platform, a first driving device arranged on one side of the fixed base, a reaming shaft arranged at the end of the first driving device and extending horizontally, and a reaming die body arranged on the reaming shaft; The second clamping device comprises second driving devices respectively arranged on both sides of the processing platform and clamping molds arranged at the output end positions of the second driving devices on both sides.

[0004] As an improvement of the above scheme, the fixed base is arranged on the end face of the processing platform and fixed at one end of the processing platform. The reaming axis is provided on the side of the fixed base facing the middle of the processing platform, and the first driving device is provided on the side of the fixed base facing away from the middle of the processing platform.

[0005] As an improvement of the above-mentioned scheme, the fixed base is provided with a first fixing groove for fixing the reaming shaft on one side end surface corresponding to the reaming shaft, and the end of the reaming shaft is provided with a first base adapted to the first fixing groove. The fixed base is provided with a second fixing groove for fixing the first driving device on one side end surface corresponding to the first driving device, and the end of the first driving device is provided with a second base adapted to the second fixing groove, and the first base and the second base are both fixed to the fixed base by screws.

[0006] As an improvement of the above scheme, the reaming shaft is a hollow tube with one end closed, a fixed punch is provided at the closed end of the reaming shaft, and a movable punch is provided at the end of the reaming shaft close to the opening, and the rear end of the movable punch is connected to the output end of the first driving device.

[0007] As an improvement of the above scheme, the outer surface of the reaming shaft is provided with a through hole penetrating along its thickness direction, and the reaming die body is provided between the fixed punch body and the movable punch body. The top end of the reaming die body is hemispherical and extends toward the outside of the through hole.

[0008] As an improvement of the above-mentioned scheme, the outer surface of the movable punch body is in contact with the inner surface of the reaming shaft, the end of the movable punch body facing the reaming mold body is provided with a slope, the bottom end of the reaming mold body is provided with an arc surface on the side in contact with the movable punch body, and the bottom end of the reaming mold body is provided with a blocking block on the side in contact with the fixed punch body.

[0009] As an improvement of the above-mentioned scheme, the end of the fixed punch body is fitted with the outer surface of the hole expansion mold body to form a hole expansion chamber, and the hole expansion mold body is provided with an integrally formed blocking block facing the hole expansion chamber, the bottom of the hole expansion chamber matches the shape of the end of the movable punch body, and the top of the hole expansion chamber matches the shape of the blocking block.

[0010] As an improvement of the above scheme, the first clamping device includes a linear stepping drive device arranged at the top of the fixed base and a circular clamp sleeved on the outer surface of the tube body, the middle part of the circular clamp is aligned with the reaming axis, the top of the circular clamp is connected to the output end of the linear stepping drive device, and the inner surface of the circular clamp is provided with a first proofreading groove.

[0011] As an improvement on the above scheme, there are two second driving devices, which are respectively arranged on both sides of the processing platform. The clamping mold includes a first clamping mold and a second clamping mold which are arranged opposite to each other in a semicircular shape. The inner surface of the first clamping mold and the second clamping mold after being bonded is provided with a second proofreading groove.

[0012] As an improvement of the above solution, a sliding guide rail is provided in the length direction of the processing platform, and a sliding platform is provided at the bottom of the second clamping device corresponding to the sliding guide rail.

[0013] The beneficial effects of the present invention are as follows: the first clamping device clamps one end of the pipe, the reaming shaft extends into the interior of the pipe along one end of the pipe, the first driving device pushes the movable punch to reciprocate, thereby controlling the reaming die to reame the small holes on the pipe, the reaming die will not deflect during the reaming process, the second clamping device clamps the reaming position of the pipe to prevent the pipe from swinging during reaming, and cooperates with the first clamping device. After completing a single reaming, the second clamping device releases the clamping mold, and the first clamping device continues to clamp the pipe and move it linearly for a certain distance to reame the small holes arranged in a linear manner, thereby having higher production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the hole expanding device of the present invention.

[0015] Figure 2 It is a schematic diagram of the side structure of the hole expanding device of the present invention.

[0016] Figure 3 Schematic diagram of the internal structure of the expansion shaft of the present invention Figure 1 .

[0017] Figure 4 Schematic diagram of the internal structure of the expansion shaft of the present invention Figure 2 .

[0018] Among them: processing platform 1, sliding guide rail 101, sliding platform 102, first clamping device 2, linear stepping drive device 201, circular clamp 202, first proofreading groove 203, second clamping device 3, first clamping mold 301, second clamping mold 302, second drive device 303, second proofreading groove 304, fixed base 4, first fixed groove 401, first base 402, second fixed groove 403, second base 404, first drive device 5, reaming shaft 6, through hole 601, reaming chamber 602, fixed punch 7, movable punch 8, inclined surface 801, reaming mold body 9, arc surface 901, blocking block 902. DETAILED DESCRIPTION

[0019] The implementation modes of the present invention are described below in conjunction with the accompanying drawings and relevant embodiments. The implementation modes of the present invention are not limited to the following embodiments, and the present invention relates to relevant necessary components in the technical field, which should be regarded as the known technology in the technical field and can be known and mastered by the technical personnel in the technical field.

[0020] like Figures 1 to 4As shown, a positioning and forming device for expanding a side wall hole of a pipeline comprises a processing platform 1, an expanding mechanism arranged at either end of the processing platform 1, a first clamping device 2 arranged on the expanding mechanism toward the middle of the processing platform 1, and a second clamping device 3 arranged in the middle of the processing platform 1; like Figure 1 and Figure 2 As shown, the processing end of the reaming mechanism extends toward the second clamping device 3, and the reaming mechanism includes a fixed base 4 arranged at the end of the processing platform 1, a first driving device 5 arranged on one side of the fixed base 4, a reaming shaft 6 arranged at the end of the first driving device 5 and extending horizontally, and a reaming mold body 9 arranged on the reaming shaft 6, and the reaming shaft 6 is the processing end of the reaming mechanism; The second clamping device 3 includes second driving devices 303 respectively arranged on both sides of the processing platform 1 and clamping molds arranged at the output ends of the second driving devices 303 on both sides.

[0021] like Figure 1 As shown, in the structure of the present invention, one end of the processing platform 1 is provided with the fixed base 4, and the fixed base 4 is provided with a hole-expanding shaft 6 for hole-expanding. When in use, the hole-expanding shaft 6 extends into the pipe to be expanded, and the output end of the first driving device 5 drives the movable punch 8 to perform linear reciprocating motion in the hole-expanding shaft 6, thereby achieving hole expansion; Furthermore, the fixed base 4 is provided with a first clamping device 2 that moves toward the second clamping device 3. The first clamping device 2 plays a role in clamping and conveying the pipeline. The first clamping device 2 clamps one end of the pipeline and moves it toward the second clamping device 3, thereby expanding the small holes on the pipeline one by one. Furthermore, the second clamping device 3 is clamped on the outer surface of the pipe at the reaming position corresponding to the reaming shaft 6, and cooperates with the first clamping device 2 to clamp the pipe, so that the pipe remains stable in the horizontal direction during the reaming process, thereby reaming from the inside to the outside through the reaming shaft 6.

[0022] like Figure 2 As shown, in the structure of the reaming mechanism of the present invention, the fixed base 4 is arranged on the end surface of the processing platform 1 and fixed to one end of the processing platform 1, the side of the fixed base 4 facing the middle direction of the processing platform 1 is provided with the reaming shaft 6, and the side of the fixed base 4 facing away from the middle direction of the processing platform 1 is provided with the first driving device 5, the first driving device 5 is a hydraulic driving device, and the linear driving shaft of the first driving device 5 passes horizontally along the thickness direction of the fixed base 4 and extends into the reaming shaft 6 on the other side of the fixed base 4; Further, in the above scheme, the reaming shaft 6 is a hollow tube body with one end closed, a fixed punch body 7 is provided at the closed end of the reaming shaft 6, and a movable punch body 8 is provided at the end of the reaming shaft 6 close to the opening, and the rear end of the movable punch body 8 is connected to the output end of the first driving device 5. When in use, the reaming shaft 6 extends into the pipeline along one end of the pipeline, and the linear driving shaft of the first driving device 5 is connected to the movable punch body 8. The movable punch body 8 is driven by the first driving device 5 to move linearly in the reaming shaft 6 toward the fixed punch body 7, thereby pushing the reaming die body 9 to reame the small hole on the pipeline; Further, in the above scheme, the outer surface of the reaming shaft 6 is provided with a through hole 601 penetrating along the thickness direction thereof, and the reaming die body 9 is provided between the fixed punch body 7 and the movable punch body 8, and the top end of the reaming die body 9 is hemispherical and extends toward the outside of the through hole 601; like Figure 3 and Figure 4 As shown, when expanding the hole of the pipe, the expanding shaft 6 extends into the pipe along one end of the pipe, and the small hole on the pipe is aligned with the through hole 601 on the expanding shaft 6. The first linear drive device drives the movable punch 8 to move in the expanding shaft 6 toward the fixed punch 7, thereby squeezing the expanding die 9, so that the end of the expanding die 9 extends outward along the through hole 601, thereby completing the expansion of the small hole on the pipe; Further, in the above scheme, the fixed base 4 is provided with a first fixing groove 401 for fixing the reaming shaft 6 at one end surface corresponding to the reaming shaft 6, and the end of the reaming shaft 6 is provided with a first base 402 adapted to the first fixing groove 401, and the fixed base 4 is provided with a second fixing groove 403 for fixing the first driving device 5 at one end surface corresponding to the first driving device 5, and the end of the first driving device 5 is provided with a second base 404 adapted to the second fixing groove 403, and the first base 402 and the second base 404 are both fixed to the fixed base 4 by screws; Specifically, the reaming shaft 6 is fixed to the fixed base 4 by screws. In another embodiment, the reaming shaft 6 of a single model is not compatible with pipes of different models. When reaming pipes of different models, the reaming shaft 6 of different models can be replaced by removing the first base 402 by screwing the screws. In the structure of the reaming shaft 6 of the present invention, a fixed punch 7 is provided at one closed end of the reaming shaft 6, a movable punch 8 is provided at one end of the reaming shaft 6 close to the opening, a reaming die 9 is provided between the movable punch 8 and the fixed punch 7, and the reaming die 9 moves outward along the through hole 601 under the movement of the movable punch 8. Specifically, the outer surface of the movable punch 8 fits the inner surface of the reaming shaft 6, the end of the movable punch 8 facing the reaming die 9 is provided with an inclined surface 801, and the bottom end of the reaming die 9 is provided with an arc surface 901 on the side in contact with the movable punch 8; When the first driving device 5 drives the mobile punch 8 to move toward the fixed punch 7, the inclined surface 801 of the mobile punch 8 conflicts with the arc surface 901 of the reaming die 9, and the mobile punch 8 is forced to rise upward along the inclined surface 801, that is, it extends outward along the through hole 601 on the reaming shaft 6, thereby reaming the pipe. A blocking block 902 is provided on the side where the bottom end of the reaming die 9 contacts the fixed punch 7. The blocking block is used to prevent the reaming die 9 from extending toward the outside of the reaming shaft 6, thereby playing a limiting role.

[0023] Furthermore, in the above scheme, the end of the fixed punch body 7 is fitted with the outer surface of the hole expansion mold body 9 to form a hole expansion chamber 602, and the hole expansion mold body 9 is provided with an integrally formed blocking block 902 toward the hole expansion chamber 602, the bottom of the hole expansion chamber 602 matches the end shape of the movable punch body 8, and the top of the hole expansion chamber 602 matches the shape of the blocking block 902. When the movable punch body 8 moves toward the hole expansion mold body 9, the front end of the movable punch body 8 continues to extend toward the bottom of the hole expansion chamber 602 after lifting the hole expansion mold body 9, and fits with the fixed punch body 7 after reaching the maximum extension process, thereby limiting the movable punch body 8, and at the same time, the blocking block 902 on the hole expansion mold body 9 fits with the top of the hole expansion chamber 602, thereby limiting the blocking block 902.

[0024] In the structure of the first clamping device 2 of the present invention, the first clamping device 2 comprises a linear stepping drive device 201 arranged at the top of the fixed base 4 and a circular fixture 202 sleeved on the outer surface of the tube body, the middle of the circular fixture 202 is aligned with the reaming shaft 6, and the top of the circular fixture 202 is connected to the output end of the linear stepping drive device 201; When in use, the first clamping device 2 is used to clamp the end of the pipe that does not need to be punched, and the reaming shaft 6 passes through the middle of the circular clamp 202. When the circular clamp 202 clamps the outer surface of the pipe, the reaming shaft 6 extends into the pipe along one end of the pipe. The inner surface of the circular clamp 202 is provided with a first calibration groove 203, and the first calibration groove 203 is aligned with the through hole 601 on the reaming shaft 6. The first calibration groove 203 is used to calibrate the small hole on the pipe, and the reaming shaft 6 is aligned with the small hole on the pipe. In the structure of the second clamping device 3 of the present invention, the number of the second driving devices 303 is two, which are respectively arranged on both sides of the processing platform 1, and the clamping mold includes a first clamping mold 301 and a second clamping mold 302 which are arranged opposite to each other in a semicircular shape. The inner surface of the first clamping mold 301 and the second clamping mold 302 after being bonded is provided with a second proofreading groove 304.

[0025] It should be noted that the first clamping mold 301 and the second clamping mold 302 are symmetrically clamped on the outer surface of the pipe, and the axis of the clamping mold is aligned with the axis of the circular clamp 202. When the hole expansion process is performed, the clamping position of the clamping mold is aligned with the position of the through hole 601 on the hole expansion shaft 6. The second clamping device 3 clamps the pipe to stabilize it, so as to prevent the pipe from shaking and causing deviation during hole expansion. When expanding the hole, the first clamping device 2 and the second clamping device 3 are used in cooperation to clamp the end of the pipe and the expanding hole position respectively to keep the pipe stable. After completing a single expansion, the second driving device 303 drives the first clamping mold 301 to separate from the second clamping mold 302, and the linear stepping driving device 201 drives the circular clamp 202 to clamp the pipe and move toward the second clamping device 3. After aligning the adjacent small holes with the through hole 601 on the expansion shaft 6, the second driving device 303 drives the first clamping mold 301 and the second clamping mold 302 to close, and repeat the processing steps, so as to expand the plurality of small holes arranged in a straight line in turn; It should be noted that the inner surface of the first clamping mold 301 and the second clamping mold 302 after being bonded is provided with a second proofreading groove 304, and the first proofreading groove 203, the through hole 601 and the second proofreading groove 304 are all aligned in a straight line. When the pipeline is fixed on the first clamping device 2, by aligning the small hole, the first proofreading groove 203, the through hole 601 and the second proofreading groove 304 in a straight line, during the hole expansion process, only the linear stepping drive device 201 is used to drive the pipeline to move in a straight line, thereby reducing unnecessary hole expansion operations, which can greatly improve the hole expansion accuracy of the pipeline and improve the hole expansion efficiency.

[0026] It should be noted that the end of the second proofreading groove 304 is through along the thickness direction of the clamping mold, and the small hole of the pipe that has not been expanded enters the clamping mold along one end of the second proofreading groove 304, and after the expansion is completed in the clamping mold, it moves out from the other end of the second proofreading groove 304. A deformation space for the expansion of the pipe is reserved between the second proofreading groove 304 and the outer surface of the pipe, which has a proofreading effect and can effectively avoid the flanging hole formed after the expansion from affecting the operation of the device; Furthermore, in the above solution, a sliding guide rail 101 is provided in the length direction of the processing platform 1, and a sliding platform 102 is provided at the bottom of the sliding guide rail 101 corresponding to the second clamping device 3; When expanding the hole of a pipe whose length does not exceed the length of the processing platform 1, the expanding shaft 6 that is compatible with the overall length of the pipe is replaced, the first clamping device 2 clamps one end of the pipe, and the second clamping device 3 clamps the other end of the pipe, and the first clamping device 2 moves the pipe linearly to complete the expanding hole; when expanding the hole of a pipe whose length exceeds the length of the processing platform 1, the expanding shaft 6 that is compatible with one-half the size of the pipe is replaced, the first clamping device 2 clamps one end of the pipe, and the second clamping device 3 clamps the middle of the length direction of the pipe, and the first clamping device 2 moves the pipe linearly to complete the expanding of one end of the pipe, and the pipe with one end expanded is turned around, and the above steps are repeated to complete the expanding of the other end of the pipe, which can flexibly handle the expanding work of pipes of different lengths.

[0027] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A positioning and forming device for expanding a side wall hole of a pipeline, characterized in that: It comprises a processing platform (1), a hole expanding mechanism arranged at either end of the processing platform (1), a first clamping device (2) arranged on the hole expanding mechanism in a direction toward the middle of the processing platform (1), and a second clamping device (3) arranged in the middle of the processing platform (1); The processing end of the reaming mechanism extends toward the second clamping device (3), and the reaming mechanism comprises a fixed base (4) arranged at the end of the processing platform (1), a first driving device (5) arranged on one side of the fixed base (4), a reaming shaft (6) arranged at the end of the first driving device (5) and extending horizontally, and a reaming die (9) arranged on the reaming shaft (6); The second clamping device (3) comprises second driving devices (303) respectively arranged on both sides of the processing platform (1) and clamping molds arranged at the output ends of the second driving devices (303) on both sides.

2. The positioning and forming device for expanding a side wall hole of a pipeline according to claim 1, characterized in that: The fixed base (4) is arranged on the end surface of the processing platform (1) and fixed to one end of the processing platform (1); the side of the fixed base (4) facing the middle of the processing platform (1) is provided with the reaming shaft (6); and the side of the fixed base (4) facing away from the middle of the processing platform (1) is provided with the first driving device (5).

3. The positioning and forming device for expanding a side wall hole of a pipeline according to claim 1, characterized in that: The fixed base (4) is provided with a first fixing groove (401) for fixing the reaming shaft (6) on one side end surface corresponding to the reaming shaft (6), and a first base (402) adapted to the first fixing groove (401) is provided at the end of the reaming shaft (6). The fixed base (4) is provided with a second fixing groove (403) for fixing the first driving device (5) on one side end surface corresponding to the first driving device (5), and a second base (404) adapted to the second fixing groove (403) is provided at the end of the first driving device (5). The first base (402) and the second base (404) are both fixed to the fixed base (4) by screws.

4. The positioning and forming device for expanding a side wall hole of a pipeline according to claim 1, characterized in that: The reaming shaft (6) is a hollow tube with one end closed. A fixed punch (7) is provided at the closed end of the reaming shaft (6). A movable punch (8) is provided at the end of the reaming shaft (6) close to the opening. The rear end of the movable punch (8) is connected to the output end of the first driving device (5).

5. The positioning and forming device for expanding a side wall hole of a pipeline according to claim 4, characterized in that: The outer surface of the hole-expanding shaft (6) is provided with a through hole (601) penetrating along the thickness direction thereof, and the hole-expanding die body (9) is provided between the fixed punch body (7) and the movable punch body (8), and the top end of the hole-expanding die body (9) is hemispherical and extends toward the outside of the through hole (601).

6. The positioning and forming device for expanding a side wall hole of a pipeline according to claim 5, characterized in that: The outer surface of the movable punch (8) is in contact with the inner surface of the reaming shaft (6); the end of the movable punch (8) facing the reaming die (9) is provided with an inclined surface (801); the bottom end of the reaming die (9) is provided with an arc surface (901) on the side in contact with the movable punch (8); and the bottom end of the reaming die (9) is provided with a blocking block (902) on the side in contact with the fixed punch (7).

7. The positioning and forming device for expanding a side wall hole of a pipeline according to claim 6, characterized in that: The end of the fixed punch (7) is fitted with the outer surface of the hole-expanding die (9) to form a hole-expanding chamber (602); the hole-expanding die (9) is provided with an integrally formed blocking block (902) facing the hole-expanding chamber (602); the bottom of the hole-expanding chamber (602) matches the shape of the end of the movable punch (8); and the top of the hole-expanding chamber (602) matches the shape of the blocking block (902).

8. The positioning and forming device for expanding a side wall hole of a pipeline according to claim 1, characterized in that: The first clamping device (2) comprises a linear stepping drive device (201) arranged at the top end of the fixed base (4) and a circular clamp (202) sleeved on the outer surface of the tube body, the middle part of the circular clamp (202) is aligned with the reaming shaft (6), the top end of the circular clamp (202) is connected to the output end of the linear stepping drive device (201), and the inner surface of the circular clamp (202) is provided with a first calibration groove (203).

9. The positioning and forming device for expanding a side wall hole of a pipeline according to claim 1, characterized in that: The number of the second driving devices (303) is two, which are arranged opposite to each other on both sides of the processing platform (1); the clamping mold comprises a first clamping mold (301) and a second clamping mold (302) which are arranged opposite to each other in a semicircular shape; and a second calibration groove (304) is provided on the inner surface of the first clamping mold (301) and the second clamping mold (302) after being bonded together.

10. The positioning and forming device for expanding a side wall hole of a pipeline according to claim 1, characterized in that: A sliding guide rail (101) is provided in the length direction of the processing platform (1), and a sliding platform (102) is provided at the bottom of the sliding guide rail (101) corresponding to the second clamping device (3).

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