Pipe and groove clamping device

Abstract

The application relates to the field of a pipe grooving machine, in particular to a pipe grooving machine clamping device which comprises a support for supporting the bottom of a pipe, two limiters for limiting the top of the pipe. The support is located between the vertical projections of the two limiters, and the bottom of the limiter is used for abutting against the top of the pipe. The clamping device further comprises a lifting assembly for driving the lifting of the limiters and a distance adjusting assembly for adjusting the distance between the bottoms of the two limiters. The application improves the stability during pipe grooving, thereby improving the machining quality of the pipe.

Description

Technical Field

[0001] This application relates to the field of pipe grooving machines, and more particularly to a clamping device for a pipe grooving machine. Background Technology

[0002] Before installation, fire-fighting pipelines need to have an annular groove squeezed into the pipe opening using a grooving machine to facilitate the connection and installation of the pipeline.

[0003] Currently, Chinese patent CN204975062U discloses a pipe grooving machine, including a base, a grooving device, and a grooving machine support. The grooving device is mounted on the base, and the grooving machine support is equipped with a pushing mechanism and a pipe support mechanism. The pipe support mechanism is connected to the grooving machine support via a support rod, and the height of the pipe support mechanism is adjustable, providing reliable support for the processed pipe.

[0004] However, in the aforementioned related technologies, when the pipeline is grooved, there is only a support device to support the pipeline, and there is no upper limit. The pipeline may sway vertically, which will affect the processing quality of the pipeline groove. Summary of the Invention

[0005] In order to improve the stability of pipe grooving and thus improve the processing quality of pipes, this application provides a clamping device for a pipe grooving machine.

[0006] This application provides a clamping device for a pipe grooving machine, which adopts the following technical solution:

[0007] A clamping device for a pipe grooving machine, comprising:

[0008] Support components, used to support the bottom of the pipe;

[0009] There are two limiting members arranged opposite each other. The two limiting members are located above the support member. The support member is located between the vertical projections of the two limiting members. The bottom of the limiting member is used to abut against the top of the pipe.

[0010] A lifting assembly for driving the limiting member to move up and down; and

[0011] An adjustment assembly for adjusting the distance between the bottoms of the two limiting members;

[0012] The lifting assembly and the adjusting assembly work together. When the limiting member rises, the distance between the two limiting members increases, and when the limiting member falls, the distance between the two limiting members decreases.

[0013] By adopting the above technical solution, the two limiting members abut against the upper sides of the pipe, thereby pressing the pipe against the support member and achieving the effect of clamping and positioning the pipe. This ensures that the pipe remains stable during the grooving process and is not prone to shaking, thus improving the quality of pipe grooving.

[0014] In addition, the lifting component is used to drive the limiting component to descend, while the adjusting component adjusts the two limiting components to move closer together, thus facilitating the clamping of pipes with smaller diameters; the lifting component is used to drive the limiting component to rise, while the adjusting component expands the distance between the two limiting components, thus facilitating the clamping of pipes with larger diameters.

[0015] Optionally, the lifting assembly includes:

[0016] The lifting frame is vertically slidably disposed above the support member; the limiting member is rotatably connected to the lifting frame;

[0017] A lifting drive component is used to drive the lifting frame to move up and down.

[0018] By adopting the above technical solution, the lifting drive component drives the lifting frame to rise and fall, and the lifting frame drives the limiting components to rise and fall, thereby achieving the effect of adjusting the height of the limiting components. By adjusting the rotation angle of the two limiting components through the distance adjustment component, the distance between the bottoms of the two limiting components can be adjusted, thus adapting to pipes of different diameters.

[0019] Optionally, the pitch adjustment component includes:

[0020] An adjusting block is located between the two limiting members, and two sliders are hinged to the adjusting block. The sliders are slidably connected to the limiting members one by one.

[0021] A lifting adjustment component is connected to the lifting frame. The lifting adjustment component is linked with the lifting drive component. The lifting direction of the adjustment block is the same as the lifting direction of the lifting frame, and the lifting speed of the adjustment block is greater than the lifting speed of the lifting frame.

[0022] By adopting the above technical solution, when the lifting drive component is working, it drives the lifting adjustment component to work, so that the adjustment block and the lifting frame rise or fall simultaneously. Since the lifting speed of the adjustment block is relatively fast, the adjustment block drives the limit component to rotate through the slider, thereby achieving the effect of adjusting the bottom distance of the two limit components.

[0023] Optionally, the lifting drive component includes a lifting screw for driving the lifting frame to rise and fall, and the lifting adjustment component includes an adjustment screw, the lifting screw and the adjustment screw are coaxially fixed, the adjustment screw is used to drive the adjustment block to rise and fall, and the thread lead of the lifting screw is smaller than the thread lead of the adjustment screw.

[0024] By adopting the above technical solution, since the thread lead of the lifting screw is smaller than that of the adjusting screw, the lifting speed of the adjusting block is greater than that of the lifting frame.

[0025] Optionally, an elastic element is connected to the bottom of the adjusting block, and a pressing element is connected to the bottom of the elastic element. The pressing element is used to press the top of the pipe. A pressure detector is provided on the adjusting block. The pressure detector is used to detect the pressure applied to the adjusting block by the elastic element. The pressure detector is electrically connected to the lifting drive.

[0026] By adopting the above technical solution, corresponding pressure values ​​are set for pipes of different diameters. Therefore, when clamping the pipe, the lifting drive stops working when the pressure sensor detects that the value has reached the set value, thus achieving the purpose of precise clamping of the pipe by the limiting device.

[0027] Optionally, the extrusion member is an extrusion plate, and the extrusion plate is arranged horizontally.

[0028] By adopting the above technical solution, the horizontal extrusion plate presses against the upper side of the pipe. Even if the extrusion plate shakes slightly, the pressure direction of the extrusion plate on the pipe is always vertically downward, thus making the pipe less prone to deflection.

[0029] Optionally, a telescopic sleeve is connected between the adjusting block and the extruder.

[0030] By adopting the above technical solution, the telescopic sleeve plays a guiding role in the lifting and lowering of the extruded parts.

[0031] Optionally, the limiting component includes a limiting rod and a limiting wheel. The limiting rod is rotatably connected to the lifting frame, and the limiting wheel is rotatably connected to the limiting rod. The limiting wheel is used to abut against the pipe.

[0032] By adopting the above technical solution, the pipeline rotates during the pressing process, and the pipeline drives the limit wheel to rotate through friction, thereby reducing the frictional loss between the pipeline and the limit component.

[0033] In summary, this application includes at least one of the following beneficial technical effects:

[0034] 1. The stability of the pipe during grooving is improved by the cooperation of the support component, two limiting components, lifting component that drives the two limiting components to rise and fall, and adjusting component that adjusts the distance between the bottom of the two limiting components. This improves the processing quality of the pipe and can be adapted to pipes of various diameters.

[0035] 2. When the lifting drive is working, it drives the lifting adjustment component to work, so that the adjustment block and the lifting frame rise or fall simultaneously. Since the lifting speed of the adjustment block is relatively fast, the adjustment block drives the limit component to rotate through the slider, thereby achieving the effect of adjusting the bottom distance of the two limit components.

[0036] 3. Set corresponding pressure values ​​for pipes of different diameters. When clamping the pipe, if the pressure sensor detects that the value has reached the set value, the lifting drive will stop working, thus achieving precise clamping of the pipe by the limiting device. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the pipe grooving machine clamping device according to an embodiment of this application.

[0038] Figure 2 This is a schematic diagram of the structure of the adjusting block and telescopic sleeve in an embodiment of this application.

[0039] Explanation of reference numerals in the attached figures:

[0040] 100. Pipeline; 1. Frame; 11. Guide rail; 2. Support component; 21. Support block; 211. Support groove; 3. Limiting component; 31. Limiting rod; 311. Slide groove; 32. Limiting wheel; 4. Lifting frame; 41. Guide block; 5. Lifting drive component; 51. Lifting screw; 52. Drive motor; 6. Adjusting block; 61. Slider; 62. Elastic component; 63. Extrusion plate; 64. Telescopic sleeve; 7. Lifting adjustment component; 71. Adjusting screw. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0042] This application discloses a clamping device for a pipe grooving machine.

[0043] Reference Figure 1 The pipe grooving machine clamping device includes a frame 1, with a support member 2 detachably connected to the bottom of the frame 1. The support member 2 is a support block 21, which supports the bottom of the pipe 100. To improve the support effect of the support member 2 on the pipe 100, a support groove 211 for accommodating the pipe 100 is formed on the upper surface of the support block 21, which is adapted to the outer circumferential wall of the pipe 100. When adapting to pipes 100 of different diameters, the support block 21 of the corresponding model can be replaced.

[0044] Reference Figure 1Two limiting members 3 are provided above the support member 2, and the bottom of the two limiting members 3 is used to press against the upper sides of the pipe 100. This restricts the vertical swaying of the pipe 100, improves the stability of the pipe 100, and thus improves the processing quality of the groove of the pipe 100.

[0045] Reference Figure 1 The limiting component 3 includes a limiting rod 31 and a limiting wheel 32, with the limiting wheel 32 rotatably connected to the bottom end of the limiting rod 31. The two limiting wheels 32 are used to press against the upper sides of the pipe 100. The pipe 100 rotates during the pressing process, and the friction force of the pipe 100 drives the limiting wheels 32 to rotate, thereby reducing frictional loss between the pipe 100 and the limiting component 3.

[0046] Reference Figure 1 When it is necessary to adapt to pipes 100 with different diameters, the height of the two limit wheels 32 and the bottom distance between the two limit wheels 32 can be adjusted.

[0047] Reference Figure 1 A lifting assembly for driving the limit member 3 to rise and fall is connected to the frame 1.

[0048] Reference Figure 1 The lifting assembly includes a lifting frame 4 and a lifting drive component 5 for driving the lifting frame 4 to move up and down. The lifting frame 4 is slidably connected to the top of the frame 1 along a vertical direction, so the lifting frame 4 is located above the support component 2. A guide rail 11 is fixed on the frame 1 to guide the lifting of the lifting frame 4, and a guide block 41 is fixed on the lifting frame 4 and slidably engaged with the guide rail 11.

[0049] Reference Figure 1 The lifting frame 4 is located between the two limiting members 3. The top of the limiting rod 31 is rotatably connected to the lifting frame 4, and the rotation axis of the limiting rod 31 is parallel to the axis of the pipe 100.

[0050] Reference Figure 1 The lifting drive component 5 includes a lifting screw 51 and a drive motor 52. The lifting screw 51 is vertically arranged, and its top end is rotatably connected to the frame 1. The drive motor 52 is fixed to the top of the frame 1, and its output shaft is arranged downward and coaxially fixedly connected to the lifting screw 51. The lifting frame 4 is threadedly connected to the lifting screw 51.

[0051] Start the drive motor 52, which drives the lifting screw 51 to rotate. The lifting screw 51 drives the lifting frame 4 to rise and fall. The lifting frame 4 drives the limit rod 31 to rise and fall, and the limit rod 31 drives the limit wheel 32 to rise and fall. Thus, the purpose of driving the limit component 3 to rise and fall is achieved.

[0052] Reference Figure 1 The frame 1 is connected to an adjustable distance component that works in conjunction with the lifting component.

[0053] Reference Figure 1 The adjustable component includes an adjusting block 6 and a lifting adjusting member 7 for driving the adjusting block 6 to rise and fall. The adjusting block 6 is located between two limit rods 31 and above the support member 2.

[0054] Reference Figure 1 The lifting adjustment component 7 includes an adjusting screw 71, which is vertically positioned and coaxially mounted at the bottom end of the lifting screw 51. The adjusting screw 71 and the lifting screw 51 are integrally formed. Thus, when the lifting screw 51 rotates, it drives the adjusting screw 71 to rotate synchronously. The thread lead of the adjusting screw 71 is greater than that of the lifting screw 51, and the adjusting block 6 is threadedly connected to the adjusting screw 71.

[0055] Reference Figure 1 , Figure 2 The adjusting block 6 has sliders 61 hinged to both sides. The sliders 61 are slidably connected to the limiting rods 31 in a one-to-one correspondence. The limiting rods 31 have grooves 311 along their length, and the sliders 61 are slidably disposed in the grooves 311. In order to reduce the possibility of the sliders 61 disengaging from the grooves 311, the sliders 61 are dovetail blocks, and the grooves 311 are dovetail slots.

[0056] When the adjusting screw 71 drives the adjusting block 6 to rise and fall, the rising and falling direction of the adjusting block 6 is consistent with that of the lifting frame 4, and the rising and falling speed of the adjusting block 6 is greater than that of the lifting frame 4. When the adjusting block 6 slides vertically relative to the lifting frame 4, the adjusting block 6 drives the limiting rod 31 to rotate through the slider 61, thereby achieving the purpose of adjusting the distance between the two limiting wheels 32.

[0057] Reference Figure 1 , Figure 2 When clamping pipes 100 of different diameters, in order to improve the accuracy of the positioning of the limit wheel 32, an elastic element 62 is connected to the lower part of the adjusting block 6. The elastic element 62 is a compression spring. A pressing plate 63 is fixed to the bottom end of the elastic element 62. The pressing plate 63 is horizontally set and is pressed above the pipe 100 by the elastic force of the elastic element 62.

[0058] Since the lower surface of the extrusion plate 63 is flat and the outer circumferential surface of the pipe 100 is curved, even if the extrusion plate 63 is tilted, the contact part between the extrusion plate 63 and the pipe 100 is always located directly above the axis of the pipe 100, so that the pressure applied by the extrusion plate 63 to the pipe 100 remains vertically downward, thus making it difficult for the pipe 100 to deviate.

[0059] Reference Figure 1 , Figure 2The bottom of the adjusting block 6 is provided with a pressure detector (not shown in the figure) for detecting the pressure applied to the adjusting block 6 by the elastic element 62. The pressure detector is electrically connected to the drive motor 52.

[0060] The pressure value of the adjusting block 6 when the limiting wheel 32 clamps the pipe 100 can be tested for pipes 100 of different diameters. A control system for controlling the operation of the motor can be installed on the frame 1. The pressure value can then be set in the control system so that when pipes 100 of different diameters need to be processed, the pressure detector detects the corresponding value and drives the motor 52 to stop working, thereby achieving the purpose of clamping pipes 100 of different diameters and improving the applicability of the clamping device.

[0061] Reference Figure 2 In order to improve the stability of the extrusion plate 63 when it is raised and lowered, a telescopic sleeve 64 is connected between the adjusting block 6 and the extrusion plate 63.

[0062] The implementation principle of the clamping device for a pipe grooving machine according to an embodiment of this application is as follows: The pipe 100 is placed on the support 2, and then the drive motor 52 is started. The drive motor 52 drives the lifting screw 51 to rotate, and the lifting screw 51 drives the adjusting screw 71 to rotate synchronously. The lifting screw 51 drives the lifting frame 4 to descend, and the adjusting screw 71 drives the adjusting block 6 to descend. The pressing plate 63 first contacts the upper side of the pipe 100.

[0063] The descending speed of the adjusting block 6 is greater than that of the lifting frame 4. As the lifting frame 4 descends, the adjusting block 6 drives the two limit rods 31 to rotate through the slider 61, causing the two limit wheels 32 to move closer to each other.

[0064] When the limiting wheel 32 abuts against the outer wall of the pipe 100, the pressure applied by the elastic element 62 to the adjusting block 6 reaches the set value, and the drive motor 52 stops working. This achieves clamping and positioning of the pipe 100, reduces the possibility of the pipe 100 swaying vertically, and improves the quality of the groove pressing of the pipe 100.

[0065] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A clamping device for a pipe grooving machine, characterized in that, include: Support member (2) is used to support the bottom of pipe (100); There are two limiting members (3) arranged opposite each other. The two limiting members (3) are located above the support member (2). The support member (2) is located between the vertical projections of the two limiting members (3). The bottom of the limiting member (3) is used to abut against the top of the pipe (100). The lifting assembly is used to drive the limiting member (3) to lift; as well as An adjustment component is used to adjust the distance between the bottoms of the two limiting members (3); The lifting component and the adjusting component work together. When the limiting member (3) rises, the distance between the two limiting members (3) increases. When the limiting member (3) falls, the distance between the two limiting members (3) decreases. The lifting assembly includes: The lifting frame (4) is vertically slidably disposed above the support member (2); the limiting member (3) is rotatably connected to the lifting frame (4); the lifting drive member (5) is used to drive the lifting frame (4) to lift. The distance adjustment assembly includes: an adjustment block (6), the adjustment block (6) being located between two limiting members (3), two sliders (61) being hinged on the adjustment block (6), the sliders (61) being slidably connected to the limiting members (3) one-to-one, the limiting member (3) including a limiting rod (31) and a limiting wheel (32), the limiting rod (31) being rotatably connected to the lifting frame (4), the limiting wheel (32) being rotatably connected to the limiting rod (31), the limiting wheel (32) being used to abut against the pipe (100), the limiting rod (31) having a groove (311) along its own length direction, the sliders (61) being slidably disposed in the groove (311); The lifting adjustment component (7) is connected to the lifting frame (4). The lifting adjustment component (7) is linked with the lifting drive component (5). The lifting direction of the adjustment block (6) is the same as the lifting direction of the lifting frame (4). The lifting speed of the adjustment block (6) is greater than the lifting speed of the lifting frame (4). The lifting drive component (5) includes a lifting screw (51), which is used to drive the lifting frame (4) to lift. The lifting adjustment component (7) includes an adjustment screw (71), which is coaxially fixed with the lifting screw (51) and the adjustment screw (71). The adjustment screw (71) is used to drive the adjustment block (6) to lift. The thread lead of the lifting screw (51) is smaller than the thread lead of the adjustment screw (71). When the adjustment block (6) slides vertically relative to the lifting frame (4), the adjustment block (6) drives the limiting rod (31) to rotate through the slider (61).

2. The clamping device for the pipe grooving machine according to claim 1, characterized in that, The bottom of the adjusting block (6) is connected to an elastic element (62), and the bottom of the elastic element (62) is connected to a squeezing element. The squeezing element is used to squeeze the top of the pipe (100). A pressure detector is provided on the adjusting block (6). The pressure detector is used to detect the pressure applied to the adjusting block (6) by the elastic element (62). The pressure detector is electrically connected to the lifting drive (5).

3. The clamping device for the pipe grooving machine according to claim 2, characterized in that, The extrusion component is an extrusion plate (63), which is horizontally arranged.

4. The clamping device for the pipe grooving machine according to claim 2, characterized in that, A telescopic sleeve (64) is connected between the adjusting block (6) and the extruder.

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