Metal pipe expanding device

Abstract

The utility model discloses a metal pipe expanding device which comprises a supporting table, the supporting table is fixedly connected with a supporting frame, a first clamping plate is arranged below the supporting frame, a second clamping plate is arranged below the first clamping plate, and a second motor is arranged above the side, away from the supporting frame, of the supporting table. The utility model relates to the technical field of metal pipe fitting machining, in particular to a metal pipe fitting diameter expanding device, through cooperation of a first motor, a worm, a worm gear, a lead screw nut, a lead screw, a bent plate and a shell, the height position of a second clamping plate is adjusted, diameter expanding machining is carried out on copper pipes with different thicknesses, and the machining efficiency is improved. The problems that when an existing diameter expanding device fixes a copper pipe, due to the fact that the position of a lower clamping plate is fixed, the height position of the lower clamping plate cannot be adjusted, diameter expanding machining can only be conducted on the copper pipe with the same thickness, and the diameter expanding machining range of the existing diameter expanding device on the copper pipe is reduced are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal pipe fitting processing technical field, concretely is a kind of metal pipe fitting expanding device. BACKGROUND

[0002] Metal pipe fitting refers to the metal material with hollow section, its length is far greater than diameter or perimeter, for example, cooling copper pipe is also a kind of metal pipe fitting, when copper pipe is processed, the position of copper pipe joint needs to be expanded by expanding device.

[0003] The existing expanding device, when using, copper pipe is placed between upper and lower clamps, copper pipe is fixed, the position of copper pipe joint is expanded by moving and rotating expanding head one side;

[0004] However, when existing expanding device fixes copper pipe, since the position of lower clamp is fixed, the height position of lower clamp cannot be adjusted, so that only copper pipe of same thickness can be expanded, thereby the range of copper pipe expansion of existing expanding device is reduced. UTILITY MODEL CONTENTS

[0005] In view of the deficiency of prior art, the utility model provides a kind of metal pipe fitting expanding device, solve the problem that the position of lower clamp is fixed when existing expanding device fixes copper pipe, the height position of lower clamp cannot be adjusted, so that only copper pipe of same thickness can be expanded, thereby the range of copper pipe expansion of existing expanding device is reduced.

[0006] In order to achieve the above object, the utility model discloses a metal pipe fitting expanding diameter device through the following technical scheme, a metal pipe fitting expanding diameter device, including support platform, the fixed connection of support platform has support frame, the below of support frame is provided with first clamping plate, the below of first clamping plate is provided with second clamping plate, the upper side of support platform away from support frame is provided with second motor, the output shaft of second motor is fixedly connected with connecting disc, the outer wall of connecting disc is provided with expanding head, the below of support platform is provided with adjusting device, adjusting device includes: casing, fixedly connected with the below of support platform, first motor is fixedly connected with the outer wall of casing through motor base, worm is fixedly connected with the output shaft of first motor, and is rotatably connected with the inner wall of casing through bearing, worm wheel is meshedly connected with the outer wall of worm, lead screw is fixedly connected with the inner wall of worm wheel, and is rotatably connected with the inner wall of casing through bearing, lead screw nut is threadedly connected with the outer wall of lead screw, curved plate is fixedly connected with the outer wall of lead screw nut, and penetrates support platform, and is movably connected with support platform, and is fixedly connected with the inner wall of second clamping plate through bolt, replacement assembly is set up on the outer wall of connecting disc, wherein, the worm is driven under the first motor, and makes both sides worm wheel drive lead screw rotates, to make both sides lead screw nut drive curved plate moves, and then drives second clamping plate to move, adjusts the height position of second clamping plate, expands the diameter to the copper pipe of different thickness, and the expanding head is replaced through replacement assembly.

[0007] Preferably, the replacement assembly comprises: through holes respectively formed in the inner walls of the connecting disc and the expanding head; a connecting knob attached to the outer wall of the expanding head; a threaded column fixedly connected to the outer wall of the connecting knob and penetrating the through holes; and a nut threadedly connected to the outer wall of the threaded column and attached to the outer wall of the connecting disc. When the nut is separated from the outer wall of the threaded column, the threaded column is removed from the through holes on both sides, the expanding head is replaced, and after replacement, the nut is rotated into the threaded column again to quickly replace the expanding head.

[0008] Preferably, a hydraulic cylinder is fixedly connected to the upper side of the first clamping plate by bolts, and the outer wall of the hydraulic cylinder is mounted to the inner wall of the support frame.

[0009] Preferably, an electric telescopic rod is fixedly connected to the surface of the side of the support platform away from the support frame by a telescopic rod base, the output end of the electric telescopic rod is fixedly connected with a vertical plate, and the bottom of the vertical plate is slidably connected to the inner wall of the support platform.

[0010] Preferably, a cover is fixedly connected to the side of the vertical plate away from the electric telescopic rod, and the second motor is fixedly connected to the inner wall of the cover by a motor cover.

[0011] Preferably, a reinforcing plate is fixedly connected between the vertical plate and the cover body.

[0012] Advantages

[0013] The metal pipe expanding device has the following advantages: the metal pipe expanding device is capable of adjusting the height position of the second clamping plate and expanding the diameter of copper pipes with different thicknesses, and solves the problem that the existing expanding device can only expand the diameter of copper pipes with the same thickness because the position of the lower clamping plate is fixed and the height position of the lower clamping plate cannot be adjusted.

[0014] The metal pipe expanding device has the following advantages: the metal pipe expanding device is capable of adjusting the height position of the second clamping plate and expanding the diameter of copper pipes with different thicknesses, and solves the problem that the existing expanding device can only expand the diameter of copper pipes with the same thickness because the position of the lower clamping plate is fixed and the height position of the lower clamping plate cannot be adjusted. BRIEF DESCRIPTION OF DRAWINGS

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

[0016] Figure 2 is a structural schematic view of the utility model; Figure 1

[0017] Figure 3 is a structural schematic view of the utility model; Figure 1

[0018] Figure 4 is a structural schematic view of the utility model. Figure 1

[0019] In the drawing: 1, support table; 2, adjusting device; 21, first motor; 22, worm; 23, worm gear; 24, lead screw nut; 25, lead screw; 26, curved plate; 27, shell; 28, replacement assembly; 281, connecting knob; 282, threaded column; 283, through hole; 284, nut; 3, support frame; 4, first clamping plate; 41, hydraulic cylinder; 5, second clamping plate; 6, expanding head; 61, electric telescopic rod; 62, vertical plate; 63, cover body; 631, reinforcing plate; 7, second motor; 8, connecting disc. DETAILED DESCRIPTION

[0020] ​​​Clearly, the described embodiments are merely 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 skilled in the art without creative labor fall within the scope of protection of the present utility model.

[0021] The existing expanding device cannot adjust the height position of the lower clamping plate when fixing the copper pipe, so that the copper pipe of the same thickness can only be expanded, thereby reducing the range of the copper pipe expansion processing of the existing expanding device.

[0022] Therefore, the present utility model provides a metal pipe expanding device, which adjusts the height position of the second clamping plate through the cooperation between the first motor, the worm, the worm gear, the screw nut, the lead screw, the curved plate and the shell, expands the copper pipe of different thicknesses, and solves the problem that the existing expanding device cannot adjust the height position of the lower clamping plate when fixing the copper pipe, so that the copper pipe of the same thickness can only be expanded, thereby reducing the range of the copper pipe expansion processing of the existing expanding device.

[0023] Through the personnel in the art, the parts in the case are connected in turn, and the specific connection and operation sequence should be referred to the working principle, and the detailed connection means is the public technical knowledge in the art, and the working principle and process are mainly introduced below.

[0024] Embodiment 1, by Figures 1-4It can be known that the metal pipe expanding device in the case, including support table 1, support table 1 is fixedly connected with support frame 3, the lower portion of support frame 3 is provided with first clamping plate 4, first clamping plate 4 is lowered, and the copper pipe is fixed to second clamping plate 5, the lower portion of first clamping plate 4 is provided with second clamping plate 5, the staff cools the copper pipe and puts it on second clamping plate 5, the upper portion of the side, away from support frame 3, of support table 1 is provided with second motor 7, the model of second motor 7 is selected according to actual demand, and work can be met, the output shaft of second motor 7 is fixedly connected with connecting disc 8, second motor 7 is connected to external power supply, second motor 7 drives connecting disc 8 to rotate, the outer wall of connecting disc 8 is provided with expanding head 6, connecting disc 8 drives expanding head 6 to rotate, expanding head 6 expands the diameter of the copper pipe, after expanding, stop second motor 7, the lower portion of support table 1 is provided with adjusting device 2, adjusting device 2 comprises: shell 27, fixedly connected to the lower portion of support table 1, the model of first motor 21 is selected according to actual demand, and work can be met, first motor 21 is fixedly connected to the outer wall of shell 27 through motor base, worm 22, fixedly connected to the output shaft of first motor 21, first motor 21 is connected to external power supply, first motor 21 drives worm 22 to rotate, and is rotatably connected to the inner wall of shell 27 through bearing, worm gear 23, meshingly connected to the outer wall of worm 22, worm 22 drives worm gear 23 to rotate, lead screw 25, fixedly connected to the inner wall of worm gear 23, both sides of worm gear 23 drive lead screw 25 to rotate, and are rotatably connected to the inner wall of shell 27 through bearing, screw nut 24, screwly connected to the outer wall of lead screw 25, both sides of lead screw 25 drive screw nut 24 to move, curved plate 26, fixedly connected to the outer wall of screw nut 24, both sides of screw nut 24 drive curved plate 26 to move, and penetrate support table 1, and are movably connected with support table 1, and are fixedly connected to the inner wall of second clamping plate 5 through bolts, curved plate 26 drives second clamping plate 5 to move, to adjust the height position of second clamping plate 5, when the staff rotates the bolt below second clamping plate 5, second clamping plate 5 can be replaced, replacement assembly 28 is arranged on the outer wall of connecting disc 8, wherein, under the drive of first motor 21, worm 22 makes both sides of worm gear 23 drive lead screw 25 to rotate, so that both sides of screw nut 24 drive curved plate 26 to move, and then drive second clamping plate 5 to move, to adjust the height position of second clamping plate 5, the copper pipe with different thicknesses is expanded, and expanding head 6 is replaced by replacement assembly 28;

[0025] In the implementation process, it is worth pointing out that the second motor 7 model is selected according to actual needs, and the first motor 21 model is selected according to actual needs. First, the staff cools the copper pipe into the second clamping plate 5, the first clamping plate 4 is lowered, the copper pipe is fixed to the second clamping plate 5, the second motor 7 is connected to the external power supply, the second motor 7 drives the connecting disc 8 to rotate, the connecting disc 8 drives the expanding head 6 to rotate, the expanding head 6 expands the copper pipe, and the expanding is completed. Stop the second motor 7. When the copper pipe of different thickness needs to be expanded, the first motor 21 is connected to the external power supply, the first motor 21 drives the worm 22 to rotate, the worm 22 drives the worm gear 23 to rotate, the two sides of the worm gear 23 drive the lead screw 25 to rotate, the two sides of the lead screw 25 drive the lead screw nut 24 to move, the two sides of the lead screw nut 24 drive the curved plate 26 to move, the curved plate 26 is positioned on the support table 1, the curved plate 26 drives the second clamping plate 5 to move, and the height position of the second clamping plate 5 is adjusted. After completion, stop the first motor 21 to adjust the height position of the second clamping plate 5. When the staff rotates the bolt below the second clamping plate 5, the second clamping plate 5 can be replaced to process copper pipes of different thicknesses;

[0026] Further, the replacement assembly 28 comprises: through holes 283 respectively provided in the inner walls of the connecting disc 8 and the expanding head 6, when the expanding head 6 needs to be replaced, the staff rotates the nuts 284 in sequence, so that the nuts 284 are separated from the threaded columns 282, the connecting buttons 281 are attached to the outer walls of the expanding head 6, the threaded columns 282 are fixedly connected to the outer walls of the connecting buttons 281 and penetrate the through holes 283, the staff takes out the threaded columns 282 from the through holes 283 on both sides, takes down the expanding head 6, attaches the replacement expanding head 6 to the connecting disc 8, and moves the connecting buttons 281 to drive the threaded columns 282 to move. The threaded columns 282 are reinserted into the through holes 283 on both sides, the nuts 284 are threadedly connected to the outer walls of the threaded columns 282 and are attached to the outer walls of the connecting disc 8, the staff reinserts the nuts 284 into the threaded columns 282, and the replacement expanding head 6 is fixed to the connecting disc 8. Among them, the nuts 284 are separated from the outer walls of the threaded columns 282, the threaded columns 282 are taken out from the through holes 283 on both sides, the expanding head 6 is replaced, and after the replacement is completed, the nuts 284 are rotated into the threaded columns 282 to quickly replace the expanding head 6;

[0027] In the specific implementation process, it is particularly worth pointing out that when the expansion head 6 needs to be replaced, the worker rotates the nut 284 in sequence to make the nut 284 leave the threaded column 282, the worker takes out the threaded column 282 from the through hole 283 on both sides, takes down the expansion head 6, attaches the replacement expansion head 6 to the connecting disc 8, the worker moves the connecting button 281 to drive the threaded column 282 to move, rethreads the threaded column 282 into the through hole 283 on both sides, and the worker rethreads the nut 284 into the threaded column 282 to fix the replacement expansion head 6 to the connecting disc 8, realizing quick replacement of the expansion head 6;

[0028] Further, the upper part of the first clamping plate 4 is fixedly connected with a hydraulic cylinder 41 by bolts. When the copper pipe is fixed, the hydraulic cylinder 41 is started, and the first clamping plate 4 is driven to descend by the hydraulic cylinder 41 to fix the copper pipe. The model of the hydraulic cylinder 41 is selected according to actual needs, and work is met. The outer wall of the hydraulic cylinder 41 is installed on the inner wall of the support frame 3. When the copper pipe expansion machining is completed, the hydraulic cylinder 41 is started again, the first clamping plate 4 is driven to rise by the hydraulic cylinder 41, and the surface of the copper pipe is separated, and the fixing of the copper pipe is released.

[0029] In the specific implementation process, it is particularly worth pointing out that the model of the hydraulic cylinder 41 is selected according to actual needs, and work is met. When the copper pipe is fixed, the hydraulic cylinder 41 is started, and the first clamping plate 4 is driven to descend by the hydraulic cylinder 41 to fix the copper pipe. After completion, the hydraulic cylinder 41 is stopped. When the copper pipe expansion machining is completed, the hydraulic cylinder 41 is started again, the first clamping plate 4 is driven to rise by the hydraulic cylinder 41, and the surface of the copper pipe is separated, and the fixing of the copper pipe is released. The first clamping plate 4 is driven to move up and down.

[0030] Specifically, firstly, the worker cools the copper tube and places it onto the second clamping plate 5. Then, the hydraulic cylinder 41 is activated, causing the first clamping plate 4 to descend and fix the copper tube onto the second clamping plate 5. After this, the hydraulic cylinder 41 is stopped, and the second motor 7 is connected to an external power source. The second motor 7 drives the connecting plate 8 to rotate, which in turn drives the expanding head 6 to rotate. The expanding head 6 expands the diameter of the copper tube. After the expansion is complete, the second motor 7 is stopped, and the hydraulic cylinder 41 is activated again. The hydraulic cylinder 41 causes the first clamping plate 4 to rise, leaving the surface of the copper tube and releasing the copper tube from its fixation. When expanding copper tubes of different diameters is required, the first motor 21 is connected to an external power source. The first motor 21 drives the worm gear 22 to rotate, which in turn drives the worm wheel 23 to rotate. The worm wheels 23 on both sides drive the lead screw 25 to rotate, which in turn drives the lead screw nut 24 to move. The lead screw nut 24 on both sides then drives the curved plate 26 to move, which supports... The platform 1 moves to limit the curved plate 26, which in turn moves the second clamping plate 5 to adjust its height. After adjustment, the first motor 21 is stopped. The second clamping plate 5 can be replaced by rotating the bolts below it to process copper tubes of different diameters. When the expansion head 6 needs to be replaced, the operator rotates the nut 284 to remove it from the threaded post 282. The operator then removes the threaded post 282 from the through holes 283 on both sides and removes the expansion head 6. The replacement expansion head 6 is then attached to the connecting plate 8. The operator moves the connecting button 281 to move the threaded post 282 back into the through holes 283 on both sides. The operator then re-inserts the nut 284 into the threaded post 282 and fixes the replacement expansion head 6 onto the connecting plate 8, thus achieving quick replacement of the expansion head 6.

[0031] Example 2, by Figure 1 , 2 As shown in section 4, an electric telescopic rod 61 is fixedly connected to the side surface of the support platform 1 away from the support frame 3 via a telescopic rod seat. When the copper pipe is enlarged, the electric telescopic rod 61 is activated, and the electric telescopic rod 61 drives the vertical plate 62 to move. The model of the electric telescopic rod 61 is selected according to actual needs, as long as it meets the working requirements. The output end of the electric telescopic rod 61 is fixedly connected to the vertical plate 62. The bottom of the vertical plate 62 is slidably engaged with the inner wall of the support platform 1. The vertical plate 62 slides in the limiting groove on the surface of the support platform 1, thereby driving the enlarging head 6 to move to enlarge the diameter of the copper pipe.

[0032] In the implementation process, it is particularly worth pointing out that the model of the electric telescopic rod 61 is selected according to actual needs, and work is met. When the copper pipe is expanded, the electric telescopic rod 61 is started, the electric telescopic rod 61 drives the vertical plate 62 to move, the vertical plate 62 slides in the limiting groove on the surface of the support table 1, thereby driving the expansion head 6 to move, and the copper pipe is expanded;

[0033] Further, the side of the vertical plate 62 away from the electric telescopic rod 61 is fixedly connected with the cover body 63, the vertical plate 62 drives the cover body 63 to move, the cover body 63 drives the second motor 7 and the expansion head 6 to move, and the second motor 7 is fixedly connected to the inner wall of the cover body 63 through the motor cover. The cover body 63 protects the second motor 7, avoiding dust accumulation on the surface of the second motor 7;

[0034] In the implementation process, it is particularly worth pointing out that the vertical plate 62 drives the cover body 63 to move, the cover body 63 drives the second motor 7 and the expansion head 6 to move, and the cover body 63 protects the second motor 7, avoiding dust accumulation on the surface of the second motor 7;

[0035] Further, the vertical plate 62 and the cover body 63 are fixedly connected with the reinforcing plate 631, the reinforcing plate 631 increases the contact area between the cover body 63 and the vertical plate 62, and improves the stability of the cover body 63;

[0036] In the implementation process, it is particularly worth pointing out that the reinforcing plate 631 increases the contact area between the cover body 63 and the vertical plate 62, and improves the stability of the cover body 63;

[0037] Specifically, when the copper pipe is expanded, the electric telescopic rod 61 is started, the electric telescopic rod 61 drives the vertical plate 62 to move, the vertical plate 62 slides in the limiting groove on the surface of the support table 1, the vertical plate 62 drives the cover body 63 to move, the cover body 63 drives the second motor 7 and the expansion head 6 to move, the cover body 63 protects the second motor 7, avoiding dust accumulation on the surface of the second motor 7, thereby expanding the copper pipe, and the reinforcing plate 631 increases the contact area between the cover body 63 and the vertical plate 62, and improves the stability of the cover body 63.

[0038] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a... " does not, without more constraints, preclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0039] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connecting", "fixing", "screw connecting" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0040] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for expanding a metal pipe, comprising a support table (1), characterized in that: The support stand (1) is fixedly connected with a support frame (3), a first clamping plate (4) is arranged below the support frame (3), a second clamping plate (5) is arranged below the first clamping plate (4), a second motor (7) is arranged above the side of the support stand (1) away from the support frame (3), the output shaft of the second motor (7) is fixedly connected with a connecting disc (8), the outer wall of the connecting disc (8) is provided with a diameter expanding head (6), the lower side of the support stand (1) is provided with an adjusting device (2), and the adjusting device (2) comprises: A shell (27) is fixedly connected to the lower side of the support stand (1); A first motor (21) is fixedly connected to the outer wall of the shell (27) through a motor base; A worm (22) is fixedly connected to the output shaft of the first motor (21) and rotatably connected to the inner wall of the shell (27) through a bearing; A worm gear (23) is meshingly connected to the outer wall of the worm (22); A lead screw (25) is fixedly connected to the inner wall of the worm gear (23) and rotatably connected to the inner wall of the shell (27) through a bearing; A lead screw nut (24) is threadedly connected to the outer wall of the lead screw (25); A curved plate (26) is fixedly connected to the outer wall of the lead screw nut (24), penetrates through the support stand (1), movably connected with the support stand (1), and fixedly connected to the inner wall of the second clamping plate (5) through bolts; A replacement assembly (28) is arranged on the outer wall of the connecting disc (8); Wherein, the worm (22) is driven by the first motor (21) to drive the worm gears (23) on both sides to rotate, so as to drive the lead screws (25) on both sides to rotate, thereby driving the lead screw nuts (24) on both sides to move, and further driving the second clamping plate (5) to move, so as to adjust the height position of the second clamping plate (5), expand the diameter of copper pipes of different thicknesses, and replace the diameter expanding head (6) through the replacement assembly (28).

2. A metal pipe expanding device according to claim 1, wherein: The replacement assembly (28) comprises: Through holes (283) are respectively formed in the inner walls of the connecting disc (8) and the diameter expanding head (6); A connecting knob (281) is attached to the outer wall of the diameter expanding head (6); A threaded column (282) is fixedly connected to the outer wall of the connecting knob (281) and penetrates through the through hole (283); A nut (284) is threadedly connected to the outer wall of the threaded column (282) and attached to the outer wall of the connecting disc (8); Wherein, the nut (284) is separated from the outer wall of the threaded column (282), the threaded column (282) is taken out from the through holes (283) on both sides, the diameter expanding head (6) is replaced, after the replacement is completed, the nut (284) is rotated into the threaded column (282) again, and the diameter expanding head (6) is quickly replaced.

3. A metal pipe expanding device according to claim 1, wherein: The upper side of the first clamping plate (4) is fixedly connected with a hydraulic cylinder (41) through bolts, and the outer wall of the hydraulic cylinder (41) is mounted on the inner wall of the support frame (3).

4. A metal pipe expanding device according to claim 1, wherein: The side surface of the support table (1) away from the support frame (3) is fixedly connected with an electric telescopic rod (61) through a telescopic rod base, and the output end of the electric telescopic rod (61) is fixedly connected with a vertical plate (62), and the bottom of the vertical plate (62) is slidably connected with the inner wall of the support table (1).

5. A metal pipe expanding device according to claim 4, wherein: The side of the vertical plate (62) away from the electric telescopic rod (61) is fixedly connected with a cover (63), and the second motor (7) is fixedly connected with the inner wall of the cover (63) through a motor cover.

6. A metal pipe expanding device according to claim 5, wherein: The vertical plate (62) and the cover (63) are fixedly connected with a reinforcing plate (631).

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