Pipe bending device for copper pipe of air source heat pump water chiller-heater unit

Abstract

The utility model provides a pipe bending device for a copper pipe of an air source heat pump water chiller-heater unit, which comprises a working table, at least one guide block is arranged on the working table, and a guide groove clamped on the copper pipe is arranged on the guide block; the bending and fixing mechanism is arranged on the workbench and used for fixing and bending the copper pipe; the driving mechanism is arranged on the workbench and connected with the bending and fixing mechanism so as to drive the bending and fixing mechanism to bend the copper pipe. When the pipe bending device is used, a copper pipe is clamped and positioned through the guide groove in the guide block, so that the copper pipe can smoothly enter the bending and fixing mechanism to be fixed, then the driving mechanism drives the bending and fixing mechanism to bend the copper pipe, manual bending is not needed, and the bending efficiency of the copper pipe is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of copper tube bending, in particular to a copper tube bending device for an air source heat pump cold and hot water unit. Background Art

[0002] Copper tubes, also known as red copper tubes, are a type of nonferrous metal tubes. They are pressed and drawn seamless tubes with good thermal conductivity, making them the first choice for water pipe heating and cooling pipe installation. They have strong corrosion resistance, are not easy to oxidize, and are not easy to react chemically with some liquid substances. At present, when hot water units use copper tubes, they need to be bent into different shapes through bending mechanisms to meet different needs.

[0003] The Chinese patent with the announcement number CN217393410U discloses a copper tube bending structure, which can quickly clamp and limit the copper tube through the cooperation of the first rotating shaft, the first sliding cylinder, the clamping plate, the fixing rod, the dial, the sliding mechanism and the bending block rod, so as to prevent the copper tube from moving during the bending process and affecting the bending efficiency. The operation is simple and the copper tube can be bent quickly. However, when bending the copper tube in the above patent, the worker needs to operate it manually, which not only increases the labor intensity of the worker, but also increases the difficulty of bending, and the bending efficiency is low. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a pipe bending device for the copper pipe of an air source heat pump hot and cold water unit to solve the technical problem in the related technology that workers need to operate manually when bending the copper pipe, which not only increases the labor intensity of the workers, but also increases the difficulty of bending and has low bending efficiency.

[0005] The utility model provides a pipe bending device for copper pipes of an air source heat pump cold and hot water unit, comprising:

[0006] A workbench, wherein at least one guide block is provided on the workbench, and a guide groove for clamping on the copper tube is provided on the guide block;

[0007] The bending and fixing mechanism is arranged on the workbench and is used to fix and bend the copper tube;

[0008] The driving mechanism is arranged on the workbench and connected with the bending and fixing mechanism to drive it to bend the copper tube.

[0009] Furthermore, the bending and fixing mechanism includes a fixed shaft rotatably arranged on the workbench, a fixed plate arranged on the fixed shaft, a fixed rod arranged on the fixed plate, a bending wheel arranged on the fixed rod, a clamping cam coaxially arranged on the fixed shaft and rotatably connected thereto, and a driving member for driving the clamping cam to rotate.

[0010] Furthermore, a bending groove is provided on the protruding portion of the clamping cam and the bending wheel, and the lateral cross-section of the bending groove is an arc-shaped structure that matches and snaps into the lateral cross-section of the copper tube.

[0011] Furthermore, the driving member includes a mounting frame, a driving cylinder arranged on the mounting frame, a rack coaxially connected to the output end of the driving cylinder, and a gear coaxially arranged on one side of the clamping cam and rotatably connected to the fixed shaft. The rack and the gear are meshed and are both horizontally arranged to drive the clamping cam to rotate during the meshing process of the gear and the rack, so that its protruding part and the arc part respectively correspond to the bending wheel, so as to realize the clamping and separation of the copper tube.

[0012] Furthermore, a bracket is provided on the workbench, a sliding body is provided on the bracket and extends from one end thereof to the other end along a first direction, a sliding groove is provided on the sliding body along the first direction, and the rack is slidably connected in the sliding groove and can slide along the extension direction of the sliding groove.

[0013] Furthermore, the driving mechanism includes a driving motor disposed at the bottom end of the workbench, and an output end of the driving motor is coaxially connected to an end of the fixed shaft away from the clamping cam.

[0014] Furthermore, a fixed block is rotatably provided on the fixed shaft at the workbench and the clamping cam, and the fixed block is mounted on the workbench via a fixed seat.

[0015] Furthermore, a support arm is provided below the fixing plate, the support arm is provided on the fixing shaft, a support block is provided on the free end of the support arm, and a support groove which is clamped to the copper tube is provided on the support block.

[0016] Furthermore, the support block is hook-shaped.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] When the utility model is used, the copper tube is firstly clamped and positioned by the guide groove on the guide block so that it can smoothly enter the bending and fixing mechanism for fixing, and then the driving mechanism drives the bending and fixing mechanism to bend the copper tube, thereby eliminating the need for manual bending and improving the efficiency of copper tube bending. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view of a copper tube bending device for an air source heat pump hot and cold water unit according to an embodiment of the utility model;

[0020] Figure 2 It is a side view schematic diagram of a pipe bending device for a copper pipe of an air source heat pump hot and cold water unit according to an embodiment of the utility model;

[0021] Figure 3 for Figure 2 A partial enlarged diagram in FIG.

[0022] Description of Figure Numbers:

[0023] 100, workbench; 200, guide block; 210, guide groove;

[0024] 300, bending and fixing mechanism; 310, fixing shaft; 320, fixing plate; 330, fixing rod; 340, bending wheel; 350, clamping cam; 360, bending groove; 370, driving member; 371, mounting frame; 372, driving cylinder; 373, rack; 374, gear; 375, bracket; 376, slide body; 377, slide groove;

[0025] 400, driving mechanism; 410, driving motor; 420, fixing block; 430, fixing seat;

[0026] 500, support arm; 600, support block; 610, support groove.

[0027] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and beneficial effects of the utility model more clear, the technical solution of the utility model is further described below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0029] In the description of the utility model, it should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of the specification are only used to match the contents disclosed in the specification for people familiar with the technology to understand and read, and are not used to limit the limiting conditions that the utility model can be implemented, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the utility model without affecting the effect that the utility model can produce and the purpose that can be achieved. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of the relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0030] like Figure 1-3As shown, an embodiment of the utility model provides a pipe bending device for copper pipes of an air source heat pump hot and cold water unit, comprising a workbench 100, a bending and fixing mechanism 300 arranged on the workbench 100, and a driving mechanism 400 connected to the bending and fixing mechanism 300, wherein at least one guide block 200 is provided on the workbench 100, and the guide block 200 is fixed on the workbench 100 through a support frame, wherein the guide block 200 is provided with a guide groove 210 for clamping the copper pipe to be bent, and the arrangement of multiple guide blocks 200 can meet the processing requirements of copper pipes of different lengths, thereby improving practicality.

[0031] In the embodiment of the utility model, when in use, the copper tube is first clamped and positioned by the guide groove 210 on the guide block 200, so that it can smoothly enter the bending and fixing mechanism 300 for fixation, and then the driving mechanism 400 drives the bending and fixing mechanism 300 to bend the copper tube, thereby eliminating the need for manual bending, thereby improving the efficiency of bending the copper tube.

[0032] like Figure 1-3 As shown, in the embodiment of the utility model, the bending and fixing mechanism 300 includes a fixed shaft 310 rotatably arranged on the workbench 100, a fixed plate 320 arranged on the fixed shaft 310, a fixed rod 330 arranged on the fixed plate 320, a bending wheel 340 arranged on the fixed rod 330, a clamping cam 350 coaxially arranged on the fixed shaft 310 and rotatably connected thereto, and a driving member 370 for driving the clamping cam 350 to rotate.

[0033] In the embodiment of the utility model, by rotating the fixed shaft 310, the protrusion and the arc portion on the clamping cam 350 correspond to the bending wheel 340 respectively. When in use, the arc portion is first aligned with the bending wheel 340. At this time, one end of the copper tube passes through the guide groove 210 and extends into the channel between the arc portion and the bending wheel 340, and one side of the copper tube is fit with the bending wheel 340. Then, the fixed shaft 310 is rotated to make the protrusion rotate toward one side of the bending wheel 340, and at the same time, the protrusion is fit and fixed to the other side of the copper tube, thereby achieving clamping and fixing of the copper tube.

[0034] like Figure 1-3 As shown, in the embodiment of the utility model, a bending groove 360 ​​is provided on the protrusion of the clamping cam 350 and the bending wheel 340. The lateral section of the bending groove 360 ​​is an arc-shaped structure that matches the side section of the copper tube and is snap-fitted. The bending groove 360 ​​of the arc-shaped structure can better fit the outer surface of the copper tube and improve the stability of clamping.

[0035] like Figure 1-3As shown, in the embodiment of the utility model, the driving member 370 includes a mounting frame 371, a driving cylinder 372 arranged on the mounting frame 371, a rack 373 coaxially connected to the output end of the driving cylinder 372, and a gear 374 coaxially arranged on one side of the clamping cam 350 and rotatably connected to the fixed shaft 310, and the rack 373 and the gear 374 are meshed and both are arranged horizontally.

[0036] In the embodiment of the utility model, the driving cylinder 372 drives the rack 373 to move laterally, thereby driving the gear 374 to rotate. During the meshing process of the gear 374 and the rack 373, the clamping cam 350 is driven to rotate, so that its protrusion and arc portion respectively correspond to the bending wheel 340, so as to achieve the clamping and separation of the copper tube. Since the clamping cam 350 is rotatably connected to the fixed shaft 310, the fixed shaft 310 will not rotate due to the rotation of the clamping cam 350.

[0037] like Figure 1-3 As shown, in the embodiment of the utility model, the workbench 100 is provided with a bracket 375, and the bracket 375 is provided with a sliding body 376 extending from one end thereof along a first direction to the other end, and the sliding body 376 is provided with a sliding groove 377 along the first direction, and the rack 373 is slidably connected in the sliding groove 377 and can slide along the extension direction of the sliding groove 377.

[0038] In the embodiment of the utility model, the slide body 376 is a rectangular frame, which is horizontally arranged, and the rectangular frame has a square hole penetrating in the vertical direction to define the slide groove 377. In one embodiment, the rectangular frame is an elongated strip to reduce space occupation.

[0039] In the embodiment of the utility model, the slide groove 377 allows the rack 373 to move more stably in lateral direction under the movement of the driving cylinder 372 , thereby improving the stability of the meshing between the rack 373 and the gear 374 .

[0040] like Figure 1-3 As shown, in the embodiment of the utility model, the driving mechanism 400 includes a driving motor 410 disposed at the bottom end of the workbench 100 , and the output end of the driving motor 410 is coaxially connected to an end of the fixed shaft 310 away from the clamping cam 350 .

[0041] In the embodiment of the utility model, the driving motor 410 drives the fixed shaft 310 to rotate, and the fixed shaft 310 drives the fixed rod 330 and the bending wheel 340 to rotate synchronously, so that the bending wheel 340 realizes the bending operation of the copper tube.

[0042] like Figure 1-3As shown, in the embodiment of the utility model, a fixed block 420 is provided on the fixed shaft 310 that is located on the workbench 100 and the clamping cam 350. The fixed block 420 is installed on the workbench 100 through a fixed seat 430. The fixed block 420 supports the fixed shaft 310 to improve the stability of the fixed shaft 310 in the vertical direction, thereby improving the accuracy of bending.

[0043] like Figure 1-3 As shown, in the embodiment of the utility model, a support arm 500 is provided below the fixed plate 320, and the support arm 500 is provided on the fixed shaft 310. A support block 600 is provided on the free end of the support arm 500, and a support groove 610 is provided on the support block 600 for clamping on the copper tube.

[0044] In the embodiment of the utility model, when in use, one end of the copper tube passes through the clamping cam 350 and the bending wheel 340, and then passes through the support groove 610, so as to meet the requirements of bending positions under different lengths, and when the fixed shaft 310 rotates, it will synchronously drive the support arm 500 to rotate, thereby improving the stability of the bending and preventing one end of the unbent copper tube from being suspended on the workbench 100 without support, causing deformation.

[0045] like Figure 1-3 As shown, in the embodiment of the utility model, the support block 600 is hook-shaped, and the hook-shaped setting is convenient for clamping the copper tube and also reduces the usage space.

[0046] In the embodiment of the utility model, the central axes of the guide groove 210 and the support groove 610 are overlapped, and their diameters are equal to the inner groove arc size of the bending groove 360, which can achieve the overall bending effect on the copper tube.

[0047] In one embodiment of the utility model, a moving mechanism for moving the workbench 100 can be installed under the workbench 100 to improve the flexibility of the device. The moving mechanism can be a roller / slide rail in the prior art. In one embodiment of the utility model, the moving mechanism includes a central control wheel and a brake pedal. The central control wheel is arranged under the workbench 100, and the brake pedal is arranged on the central control wheel. The central control wheel facilitates the movement of the device, and the brake pedal facilitates the control of the central control wheel. The device is fixed by stepping on the brake pedal, which not only improves the flexibility of the device, but also makes the device more stable during transfer, thereby improving safety.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A copper tube bending device for an air source heat pump hot and cold water unit, characterized in that: include: A workbench (100), wherein at least one guide block (200) is provided on the workbench (100), and the guide block (200) is provided with a guide groove (210) that is clamped to the copper pipe; A bending and fixing mechanism (300) is arranged on the workbench (100) and is used to fix and bend the copper tube; The driving mechanism (400) is arranged on the workbench (100) and is connected to the bending and fixing mechanism (300) to drive it to bend the copper tube.

2. A copper tube bending device for an air source heat pump hot and cold water unit as claimed in claim 1, characterized in that: The bending and fixing mechanism (300) comprises a fixed shaft (310) rotatably arranged on the workbench (100), a fixed plate (320) arranged on the fixed shaft (310), a fixed rod (330) arranged on the fixed plate (320), a bending wheel (340) arranged on the fixed rod (330), a clamping cam (350) coaxially arranged on the fixed shaft (310) and rotatably connected thereto, and a driving member (370) for driving the clamping cam (350) to rotate.

3. The copper tube bending device of the air source heat pump hot and cold water unit according to claim 2, characterized in that: The protruding portion of the clamping cam (350) and the bending wheel (340) are both provided with a bending groove (360), and the lateral cross section of the bending groove (360) is an arc-shaped structure that matches and snaps into the lateral cross section of the copper tube.

4. The copper tube bending device for an air source heat pump hot and cold water unit according to claim 2, characterized in that: The driving member (370) comprises a mounting frame (371), a driving cylinder (372) disposed on the mounting frame (371), a rack (373) coaxially connected to the output end of the driving cylinder (372), and a gear (374) coaxially disposed on one side of the clamping cam (350) and rotatably connected to the fixed shaft (310), wherein the rack (373) and the gear (374) are meshed and both are disposed horizontally.

5. The copper tube bending device for an air source heat pump hot and cold water unit as claimed in claim 4, characterized in that: The workbench (100) is provided with a bracket (375), the bracket (375) is provided with a slide body (376) extending from one end thereof along a first direction to the other end, the slide body (376) is provided with a slide groove (377) along the first direction, and the rack (373) is slidably connected in the slide groove (377) and can slide along the extension direction of the slide groove (377).

6. The copper tube bending device for an air source heat pump hot and cold water unit as claimed in claim 2, characterized in that: The driving mechanism (400) comprises a driving motor (410) disposed at the bottom end of the workbench (100), and an output end of the driving motor (410) is coaxially connected to an end of the fixed shaft (310) away from the clamping cam (350).

7. The copper tube bending device for an air source heat pump hot and cold water unit according to claim 6, characterized in that: A fixed block (420) is rotatably provided on the fixed shaft (310) located between the workbench (100) and the clamping cam (350), and the fixed block (420) is mounted on the workbench (100) via a fixed seat (430).

8. The copper tube bending device for an air source heat pump hot and cold water unit as claimed in claim 7, characterized in that: A support arm (500) is provided below the fixing plate (320), and the support arm (500) is arranged on the fixing shaft (310). A support block (600) is provided on the free end of the support arm (500), and a support groove (610) is provided on the support block (600) for clamping on the copper tube.

9. The copper tube bending device for an air source heat pump hot and cold water unit as claimed in claim 8, characterized in that: The support block (600) is hook-shaped.

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