Ejecting boosting device for preventing pipe fitting from being bent and fractured

Abstract

The utility model discloses an ejection boosting device for preventing a pipe fitting from being bent and fractured, which comprises a feeding trolley, a machine head component and an ejection rod, a trolley material clamp is arranged on the feeding trolley, the ejection rod is positioned in the trolley material clamp, and a driving device for driving the ejection rod to axially move along the trolley material clamp is arranged on the feeding trolley; one end of the ejector rod is an ejector end; the driving device comprises a fixed plate and a movable plate, the fixed plate is fixedly arranged on the feeding trolley, a driving piece is arranged on the fixed plate, the movable plate is connected with the driving piece, and one end of the ejector rod is connected with the movable plate. Through the arrangement of the ejector rod, when the last bent part of the pipe fitting is machined, even if the length between the bent position on the pipe fitting and the tail of the pipe fitting is short, and the end of the pipe fitting is completely within the range of the profiling die, the ejector rod can stretch out to achieve ejection boosting of the pipe fitting, and cracks or fractures are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe bending processing, in particular to a material pushing device for preventing pipe fittings from bending and breaking. Background Art

[0002] When bending an aluminum tube using a tube bender, when the bending radius R is smaller than the tube diameter D, if the tail end of the tube is not pushed, the bending resistance will be too large and the material fluidity near the bending position on the tube will deteriorate, which will cause cracks or even breakage at the bending position on the tube.

[0003] In view of the above problem, an existing solution is as follows: during the bending process of the pipe fitting, the pipe fitting is clamped by the trolley material clamp on the feeding trolley on the pipe bending machine, and an axial thrust force is applied to the pipe fitting by the material clamp on the feeding trolley to assist the pipe fitting and avoid cracks or breakage.

[0004] However, when some pipes are being processed at the last bending position, the length from the bending position to the tail of the pipe is short, and the end of the pipe is completely within the range of the mold, resulting in the trolley clamp on the feeding trolley being unable to clamp the tail end of the pipe, and thus being unable to assist in the bending process, which can easily cause cracks or breakage during the bending process. Summary of the invention

[0005] The utility model aims to solve the deficiencies in the prior art and provide a material pushing device for preventing pipe fittings from bending and breaking.

[0006] The purpose of the utility model is achieved through the following technical solutions: a material ejection boosting device for preventing pipe fittings from bending and breaking, comprising a feeding trolley, a head component, and a ejection rod, the feeding trolley is provided with a trolley material clamp, the ejection rod is located in the trolley material clamp, and the feeding trolley is provided with a driving device for driving the ejection rod to move axially along the trolley material clamp; one end of the ejection rod is an ejection end;

[0007] The driving device comprises a fixed plate and a movable plate. The fixed plate is fixedly arranged on the feeding trolley. A driving member is arranged on the fixed plate. The movable plate is connected to the driving member. One end of the ejecting rod is connected to the movable plate.

[0008] When the ejector rod is in the boosting state, the ejector end on the ejector rod extends from the front end of the trolley clamp and pushes against one end of the pipe fitting;

[0009] When the ejector rod is in a non-assisting state, the ejector end on the ejector rod is retracted into the trolley material clamp.

[0010] Preferably, the ejector rod is a circular tubular structure.

[0011] Preferably, at least three clamping jaws are provided at the front end of the trolley material clamp; when the ejector rod is in the boosting state, the ejector rod passes through between the clamping jaws.

[0012] Preferably, a guide rod is provided on the fixed plate, the guide rod is arranged along the axial direction of the trolley material clamp, and a guide sleeve corresponding to the guide rod is provided on the movable plate, and the guide rod passes through the guide sleeve.

[0013] Preferably, the driving member is a cylinder, the cylinder block of the cylinder is fixedly arranged on the fixed plate, and the piston rod on the cylinder is connected to the movable plate.

[0014] The beneficial effect of the present utility model is that: through the arrangement of the ejector rod in the present utility model, when processing the last bending part of the pipe fitting, even when the length between the bending position on the pipe fitting and the tail of the pipe fitting is short such that the end of the pipe fitting is completely within the range of the profiling die, the ejecting and boosting of the pipe fitting can be achieved through the extension of the ejector rod, avoiding the occurrence of cracks or fractures. Description of the Drawings

[0015] Figure 1 is a schematic structural view of the present utility model.

[0016] Figure 2 is a front view of the present utility model.

[0017] Figure 3 is a schematic structural view of the ejector rod in the present utility model.

[0018] Figure 4 is a schematic view when the ejector rod in the present utility model pushes one end of the pipe fitting.

[0019] In the figure: 1, feeding trolley; 2, trolley material clamp; 3, machine head component; 4, round die; 5, profiling die; 6, clamping die; 7, pipe fitting; 8, fixed plate; 9, driving member; 10, movable plate; 11, guide rod; 12, ejector rod; 13, clamping jaw; 15, guide sleeve; 16, cylinder block; 17, fixed seat; 18, telescopic rod; 19, spring; 20, top block; 20-1, main body part; 20-2, blocking part; 20-3, guiding inclined surface; 21, plunger rod; 22, ejector rod; 23, limiting end plate; 24, central oil cavity; 25, piston cavity; 26, oil pipe; 27, oil pipe interface; 28, connecting rib plate. Detailed Embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present utility model.

[0021] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0022] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0023] like Figures 1 to 4 As shown, a material ejection boosting device for preventing pipe fittings from bending and breaking comprises a feeding trolley 1, a head component 3, and a ejection rod 12. The feeding trolley 1 is provided with a trolley material clamp 2, and the ejection rod 12 is located in the trolley material clamp 2. The feeding trolley 1 is provided with a driving device for driving the ejection rod 12 to move axially along the trolley material clamp 2; one end of the ejection rod 12 is an ejection end;

[0024] When the ejector rod 12 is in the boosting state, the ejector end on the ejector rod 12 extends from the front end of the trolley clamp 2 and pushes against one end of the pipe fitting 7;

[0025] The driving device includes a fixed plate 8 and a movable plate 10. The fixed plate 8 is provided with a driving member 9, which is connected to the movable plate 10. One end of a push rod 12 is connected to the movable plate 10.

[0026] When the ejecting rod 12 is in a non-assisting state, the ejecting end of the ejecting rod 12 is retracted into the trolley material clamp 2 .

[0027] Among them, a circular die 4, a backing die 5, and a clamping die 6 are provided on the head component 3. The trolley material clamp 2 on the feeding trolley 1 is used to clamp one end of the pipe fitting 7. The feeding trolley 1 is used to realize functions such as rotation and forward feeding of the pipe fitting 7. The circular die 4, the backing die 5, the clamping die 6, the feeding trolley 1, and the trolley material clamp 2 belong to the conventional structure of the existing pipe bending machine and will not be repeated in the utility model.

[0028] When processing the last bending part of the pipe fitting 7, the ejector end on the ejector rod 12 is driven by a driving device to extend from the front end of the trolley fixture 2 and abut against one end of the pipe fitting 7. The driving device applies an ejecting thrust to the ejector rod 12, and this ejecting thrust is transmitted to one end of the pipe fitting 7 through the ejector rod 12, thereby realizing the ejecting boost of the pipe fitting 7 and preventing cracks or fractures from occurring to the pipe fitting 7 during the bending process. In the present utility model, through the arrangement of the ejector rod 12, when processing the last bending part of the pipe fitting 7, even if the length between the bending position on the pipe fitting 7 and the tail of the pipe fitting 7 is short such that the end of the pipe fitting 7 is completely within the range of the profiling die 5, the ejecting boost of the pipe fitting 7 can still be realized through the extension of the ejector rod 12, avoiding the occurrence of cracks or fractures.

[0029] At least three clamping claws 13 are provided at the front end of the trolley fixture 2; when the ejector rod 12 is in the boosting state, the ejector rod 12 passes through between the clamping claws 13. In this embodiment, three clamping claws 13 are provided at the front end of the trolley fixture 2, and the three clamping claws 13 can be closed to clamp the pipe fitting 7, and the pipe fitting 7 can be released by opening the three clamping claws 13.

[0030] A guide rod 11 is provided on the fixed plate 8, the guide rod 11 is arranged along the axial direction of the trolley fixture 2, and a guide sleeve 15 corresponding to the guide rod 11 is provided on the movable plate 10, and the guide rod 11 passes through the guide sleeve 15.

[0031] Preferably, the driving member is a cylinder, the cylinder block 16 of the cylinder is fixedly arranged on the fixed plate 8, and the piston rod on the cylinder is connected to the movable plate 10.

[0032] In this embodiment, the ejector rod 12 has a circular tube structure. When performing the ejecting boost on the pipe fitting 7, the end face of the ejector end on the ejector rod 12 contacts one end of the pipe fitting 7 to realize the ejecting boost of the pipe fitting 7.

[0033] When the ejecting boost device for preventing the pipe fitting from bending and breaking is in use, the specific method is as follows: when the pipe fitting 7 is being processed for the last bending part, the driving member 9 drives the ejector end on the ejector rod 12 to extend from the front end of the trolley fixture 2 and tightly abut against one end of the pipe fitting 7. The driving member 9 applies an ejecting thrust to the ejector rod 12, and the ejecting thrust is transmitted to one end of the pipe fitting 7 through the ejector rod 12 to realize the ejecting boost of the pipe fitting 7;

[0034] After the processing of the pipe fitting 7 is completed, the driving member 9 drives the ejector rod 12 to move and retracts the ejector end on the ejector rod 12 into the trolley fixture 2.

[0035] The present utility model is not limited to the above-mentioned optimal implementation manner. Any person can obtain other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in its shape or structure, as long as it has a technical solution that is the same as or similar to the present application, it falls within the protection scope of the present utility model.

Claims

1. A material-boosting device for preventing pipes from bending and breaking, characterized in that: It includes a feeding trolley, a machine head component, and a ejector rod. The feeding trolley is provided with a trolley material clamp, the ejector rod is located in the trolley material clamp, and the feeding trolley is provided with a driving device for driving the ejector rod to move axially along the trolley material clamp; one end of the ejector rod is the ejector end; The driving device comprises a fixed plate and a movable plate. The fixed plate is fixedly arranged on the feeding trolley. A driving member is arranged on the fixed plate. The movable plate is connected to the driving member. One end of the ejecting rod is connected to the movable plate. When the ejector rod is in the boosting state, the ejector end on the ejector rod extends from the front end of the trolley clamp and pushes against one end of the pipe fitting; When the ejector rod is in a non-assisting state, the ejector end on the ejector rod is retracted into the trolley material clamp.

2. The device for boosting material to prevent pipe bending and fracture according to claim 1 is characterized in that: The ejector rod is a circular tubular structure.

3. The material-pushing device for preventing pipes from bending and breaking according to claim 1 is characterized in that: The front end of the trolley material clamp is provided with at least three clamping claws; when the ejecting rod is in the boosting state, the ejecting rod passes through between the clamping claws.

4. The device for boosting material to prevent pipe bending and fracture according to claim 1, characterized in that: The fixed plate is provided with a guide rod, which is arranged along the axial direction of the trolley material clamp. The movable plate is provided with a guide sleeve corresponding to the guide rod, and the guide rod passes through the guide sleeve.

5. The device for boosting material to prevent pipe bending and fracture according to claim 1, characterized in that: The driving member is a cylinder, a cylinder body of the cylinder is fixedly arranged on the fixed plate, and a piston rod on the cylinder is connected to the movable plate.

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