Clamping device and supporting mechanism for PE bent pipe machining

Abstract

The utility model provides a clamping device for PE bent pipe machining and a supporting mechanism. The clamping device comprises a swing arm, an upper clamping plate and a lower clamping plate. The swing arm is hinged to a main shaft of the traction device and is in transmission connection with a swing driving component; the upper clamping plate is fixedly connected to the swing end of the swing arm, and the lower clamping plate is hinged to the upper clamping plate. The upper clamping plate and the lower clamping plate are both of a semicircular structure, and openings of the upper clamping plate and the lower clamping plate face each other. Moreover, a locking structure is arranged between the upper clamping plate and the lower clamping plate, and when the locking structure is connected with the upper clamping plate and the lower clamping plate, the two semicircular structures form a circular annular cavity channel suitable for being clamped on the periphery of the bent pipe so as to support the PE bent pipe. The supporting mechanism comprises the clamping device, and the supporting mechanism and the clamping device have the same beneficial effects. According to the clamping device and the supporting mechanism for PE bent pipe machining, clamping and separation of the PE bent pipe can be achieved, the bent pipe can fall on the recycling face on the lower side, and the production and machining efficiency of the PE bent pipe is guaranteed.

Description

Technical Field

[0001] The present application belongs to the technical field of PE pipe bending processing, and specifically relates to a clamping device and a support mechanism for PE pipe bending processing. Background Art

[0002] PE elbow is a pipe made of polyethylene (PE) material, and its main characteristics are large bending angle and large radius. Specifically, PE elbow usually refers to a pipe with an angle greater than or equal to 90 degrees and a radius greater than or equal to twice the diameter of the bend.

[0003] In the existing PE pipe bending process, after the pipe is discharged from the rubber extruder and initially shaped, it will be pulled by a traction device to form a pipe structure with an arc cross section; during this process, a support device needs to be set on the lower side of the pipe to prevent the pipe from buckling.

[0004] The inventors found that the existing support device occupies a large amount of ground space in the site, which not only affects the actions of on-site personnel, but also interferes with subsequent recycling (especially the step of placing the PE elbow on the transfer vehicle), thereby reducing the production and processing efficiency of the PE elbow. Utility Model Content

[0005] The embodiment of the present application provides a clamping device and a support mechanism for PE elbow processing, which aims to achieve the clamping and separation of the PE elbow, so that the elbow can fall on the recovery surface on the lower side, thereby ensuring the production and processing efficiency of the PE elbow.

[0006] To achieve the above objectives, the technical solution adopted in this application is:

[0007] Provided is a clamping device for PE pipe bending processing, comprising:

[0008] a swing arm, configured to be disposed on the main shaft of the traction device, with one end of the swing arm hinged to the outer wall of the main shaft, the hinge axis being perpendicular to the axis of the main shaft; the swing arm being transmission-connected to a swing drive member for driving the swing arm to swing relative to the main shaft;

[0009] an upper clamping plate, fixedly connected to the swing end of the swing arm, with its thickness direction parallel to the hinge axis of the swing arm; and

[0010] A lower splint is hinged to the upper splint, and both the hinge axis and thickness direction are parallel to the hinge axis of the swing arm; and a locking structure is provided between the lower splint and the upper splint;

[0011] The vertical cross-section of the upper splint is a semicircular structure with the opening facing downward, and the vertical cross-section of the lower splint is a semicircular structure with the opening facing upward;

[0012] When the locking structure connects the upper clamping plate and the lower clamping plate, an annular cavity suitable for clamping the outer periphery of the elbow is formed between the upper clamping plate and the lower clamping plate;

[0013] When the upper clamping plate and the lower clamping plate are separated, the swing driving component can drive the swing arm to swing, so that the upper clamping plate and the lower clamping plate avoid the bent pipe.

[0014] In a possible implementation, the swing driving component includes:

[0015] a connecting seat, configured to be hinged on the outer wall of the main shaft, with the hinge axis being parallel to the swing axis of the swing arm; and

[0016] A linear cylinder is fixedly arranged on the connecting seat, and the power output axis is perpendicular to the hinge axis of the connecting seat; and the power output end of the linear cylinder is hinged to the swing arm, and the hinge axis is parallel to the swing axis of the swing arm.

[0017] In a possible implementation, the locking structure includes:

[0018] A positioning hole is provided on the upper clamping plate and passes through the upper clamping plate in a thickness direction;

[0019] an alignment hole, which is formed on the lower clamping plate and passes through the lower clamping plate in a thickness direction; and

[0020] The stop rod is suitable for being inserted into the positioning hole and the alignment hole that are communicated with each other to limit the relative swing of the upper clamping plate and the lower clamping plate.

[0021] In a possible implementation, the stop rod includes:

[0022] An internally threaded tube adapted to be inserted into the positioning hole and the alignment hole that are interconnected; and

[0023] The external threaded rod is suitable for being inserted into the positioning hole and the alignment hole that are communicated with each other, and is threadably connected to the internal threaded pipe.

[0024] In a possible implementation, both the internally threaded tube and the externally threaded rod have outwardly extending limit heads;

[0025] When the internally threaded tube and the externally threaded rod are inserted into the mutually communicating positioning hole and the alignment hole and are connected, the two limiting heads abut against the outer wall of the upper clamping plate and / or the lower clamping plate.

[0026] In a possible implementation, the upper splint includes:

[0027] Two upper arc-shaped plates are spaced apart along the swing axis of the swing arm and are both connected to the swing end of the swing arm; and

[0028] A plurality of upper connecting plates are arranged between the two upper arc-shaped plates, and both ends of each upper connecting plate are respectively connected to the two upper arc-shaped plates;

[0029] Wherein, the lower clamping plate is arranged between the two upper arc-shaped plates, and two sides of the lower clamping plate are hinged to the two upper arc-shaped plates respectively.

[0030] In a possible implementation, the two upper arc-shaped plates are connected via a frame-shaped member, and the frame-shaped member is suitable for being sleeved on the swing end of the swing arm.

[0031] In one possible implementation, the frame-shaped member is provided with a through hole connected to its internal space, and the swing arm is provided with a threaded groove suitable for connecting to the through hole; there is a docking bolt between the swing arm and the frame-shaped member, and the docking bolt is suitable for being inserted into the through hole and threadedly connected to the threaded groove.

[0032] In a possible implementation, the lower splint includes:

[0033] Two lower arc-shaped plates are arranged on the upper clamping plate at intervals along the swing axis of the swing arm, and each of the lower arc-shaped plates is hinged to the upper clamping plate along the swing axis of the swing arm; and

[0034] A plurality of lower connecting plates are arranged between the two lower arc-shaped plates, and both ends of each lower connecting plate are respectively connected to the two lower arc-shaped plates.

[0035] In an embodiment of the present application, the swing arm can be driven to swing by the swing driving component so that the combined structure of the upper splint and the lower splint avoids the traction trajectory of the PE elbow, so as to facilitate the traction processing of the PE elbow; on this basis, the swing arm is driven to swing to the position where the upper splint and the elbow are connected by the swing driving component, and then the lower splint is swung to connect with the upper splint, and the upper splint and the lower splint are connected by the locking structure to form an annular cavity that can be clamped on the outer periphery of the elbow, thereby supporting the elbow.

[0036] Compared with the prior art, the clamping device for PE elbow processing provided in this embodiment can achieve the clamping and separation of PE elbows, so that the elbows can fall onto the recovery surface on the lower side, thereby ensuring the production and processing efficiency of PE elbows.

[0037] The technical solution adopted in the present application also provides a supporting mechanism, including a plurality of clamping devices for PE pipe bending processing proposed in any of the aforementioned items, which are arranged around the main shaft.

[0038] The beneficial effects of the support mechanism provided in this embodiment are the same as those of the aforementioned clamping device for PE pipe bending processing, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0040] Figure 1 A schematic diagram of the three-dimensional structure of the clamping device provided in an embodiment of the present application;

[0041] Figure 2 for Figure 1 Side view of;

[0042] Figure 3 A partially enlarged schematic diagram of the swing arm and frame member used in the embodiment of the present application from an exploded perspective;

[0043] Figure 4 This is a schematic diagram of the exploded structure of the locking structure used in the embodiment of the present application;

[0044] Figure 5 A schematic diagram of the structure of the upper and lower splints used in the embodiment of the present application in a cross-sectional view;

[0045] Explanation of the accompanying drawings: 1. Swing arm; 11. Threaded groove; 2. Upper clamping plate; 21. Upper arc plate; 22. Upper connecting plate; 3. Lower clamping plate; 31. Lower arc plate; 32. Lower connecting plate; 4. Swing drive component; 41. Connecting seat; 42. Linear cylinder; 5. Locking structure; 51. Positioning hole; 52. Alignment hole; 53. Stop rod; 531. Internally threaded tube; 532. Externally threaded rod; 10. Limit head; 20. Frame-type part; 201. Through hole; 30. Docking bolt; 100. Spindle. DETAILED DESCRIPTION

[0046] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0047] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0048] It should be understood that the terms "length", "width", "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 accompanying drawings, and are only for the convenience of describing this application 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, and therefore cannot be understood as a limitation on this application.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0050] Please also refer to Figures 1 to 5 The clamping device for processing PE pipe bends provided in this application is now described. The clamping device for processing PE pipe bends provided in this application comprises a swing arm 1, an upper clamping plate 2 and a lower clamping plate 3.

[0051] The swing arm 1 is used to be set on the main shaft 100 of the traction device. In actual use, the main shaft 100 rotates to drive the traction head to move along the preset trajectory of the PE elbow, and at the same time drives the swing arm 1 to swing.

[0052] One end of the swing arm 1 is hinged to the outer wall of the main shaft 100, and the hinge axis is perpendicular to the axis of the main shaft 100; and the swing arm 1 is transmission-connected to a swing driving component 4 for driving it to swing relative to the main shaft 100.

[0053] The upper clamping plate 2 is fixedly connected to the swing end of the swing arm 1 , and the thickness direction is parallel to the hinge axis of the swing arm 1 .

[0054] The lower clamping plate 3 is hinged to the upper clamping plate 2 , and both the hinge axis and thickness direction are parallel to the hinge axis of the swing arm 1 .

[0055] A locking structure 5 is provided between the lower splint 3 and the upper splint 2 ; the upper splint 2 and the lower splint 3 can be connected by the locking structure 5 to limit relative swinging of the upper splint 2 and the lower splint 3 .

[0056] In this embodiment, the vertical cross-section of the upper splint 2 is a semicircular structure with the opening facing downward, and the vertical cross-section of the lower splint 3 is a semicircular structure with the opening facing upward; based on this, when the locking structure 5 connects the upper splint 2 and the lower splint 3, an annular cavity suitable for clamping the outer periphery of the bent pipe is formed between the upper splint 2 and the lower splint 3.

[0057] When the upper clamping plate 2 and the lower clamping plate 3 are separated, the swing driving component 4 can drive the swing arm 1 to swing, so that the upper clamping plate 2 and the lower clamping plate 3 avoid the setting of the bent pipe, thereby ensuring the traction processing of the PE bent pipe.

[0058] In the embodiment of the present application, the swing arm 1 can be driven to swing by the swing drive component 4, so that the combined structure of the upper clamp 2 and the lower clamp 3 avoids the traction trajectory of the PE elbow, so as to facilitate the traction processing of the PE elbow; on this basis, the swing arm 1 is driven by the swing drive component 4 to swing to the position where the upper clamp 2 is connected to the elbow, and then the lower clamp 3 is swung to connect with the upper clamp 2, and the upper clamp 2 and the lower clamp 3 are connected by the locking structure 5 to form an annular cavity that can be clamped on the outer periphery of the elbow, thereby supporting the elbow.

[0059] Compared with the prior art, the clamping device for PE elbow processing provided in this embodiment can achieve the clamping and separation of PE elbows, so that the elbows can fall onto the recovery surface on the lower side, thereby ensuring the production and processing efficiency of PE elbows.

[0060] It should be noted that, since the annular cavity formed by the upper clamping plate 2 and the lower clamping plate 3 moves together with the main shaft 100, the device can avoid friction between the PE elbow and the supporting surface, thereby ensuring the processing effect of the PE elbow surface.

[0061] In some embodiments, as Figure 1 and Figure 2 As shown, the swing driving component 4 includes a connecting seat 41 and a linear cylinder 42 .

[0062] The connecting seat 41 is used to be hinged on the outer wall of the main shaft 100 , and the hinge axis is parallel to the swing axis of the swing arm 1 .

[0063] The linear cylinder 42 is fixedly arranged on the connecting seat 41, and the power output axis is perpendicular to the hinge axis of the connecting seat 41; and the power output end of the linear cylinder 42 is hinged to the swing arm 1, and the hinge axis is parallel to the swing axis of the swing arm 1.

[0064] By adopting the above technical solution, when the linear cylinder 42 is started, its power output shaft extends or retracts, so that the swing arm 1 swings relative to the main shaft 100.

[0065] In some embodiments, as Figure 4 As shown, the locking structure 5 includes a positioning hole 51 , an alignment hole 52 and a stop rod 53 .

[0066] The positioning hole 51 is formed on the upper clamping plate 2 and passes through the upper clamping plate 2 in the thickness direction.

[0067] The alignment hole 52 is formed on the lower clamping plate 3 and passes through the lower clamping plate 3 along the thickness direction.

[0068] The stop rod 53 is adapted to be inserted into the positioning hole 51 and the alignment hole 52 that are communicated with each other, so as to limit the relative swinging of the upper clamping plate 2 and the lower clamping plate 3 .

[0069] In some embodiments, as Figure 4 As shown, the stop rod 53 includes an internal threaded tube 531 and an external threaded rod 532 .

[0070] The internal threaded tube 531 is suitable for being inserted into the positioning hole 51 and the alignment hole 52 that are connected to each other.

[0071] The external threaded rod 532 is suitable for being inserted into the positioning hole 51 and the alignment hole 52 that are connected to each other, and is threadedly connected to the internal threaded tube 531 .

[0072] In some embodiments, as Figure 3 As shown, both the internally threaded tube 531 and the externally threaded rod 532 have outwardly extending limit heads 10 . In this embodiment, the two limit heads 10 are located at opposite ends of the internally threaded tube 531 and the externally threaded rod 532 .

[0073] By adopting the above technical solution, when the internal threaded tube 531 and the external threaded rod 532 are connected and inserted into the mutually connected positioning hole 51 and alignment hole 52, the two limit heads 10 abut the outer wall of the upper splint 2 and / or the lower splint 3; specifically, according to the positional relationship between the upper splint 2 and the lower splint 3, it can be divided into the following three situations: First, when the upper splint 2 and the lower splint 3 overlap in the thickness direction, the two limit heads 10 respectively abut the outer side of the upper splint 2 and the outer side of the lower splint 3; second, when the upper splint 2 is on the inner side of the lower splint 3, the two limit heads 10 both abut the outer side of the lower splint 3; third, when the lower splint 3 is on the inner side of the upper splint 2, the two limit heads 10 both abut the outer side of the upper splint 2.

[0074] In some embodiments, as Figure 4 and Figure 5 As shown, the upper clamping plate 2 includes two upper arc-shaped plates 21 and a plurality of upper connecting plates 22 .

[0075] The two upper arc-shaped plates 21 are spaced apart along the swing axis of the swing arm 1 and are both connected to the swing end of the swing arm 1 .

[0076] The plurality of upper connecting plates 22 are disposed between the two upper arc-shaped plates 21 , and both ends of each upper connecting plate 22 are connected to the two upper arc-shaped plates 21 , respectively.

[0077] In this embodiment, the aforementioned lower clamping plate 3 is disposed between the two upper arc-shaped plates 21 , and two sides of the lower clamping plate 3 are hinged to the two upper arc-shaped plates 21 respectively.

[0078] By adopting the above technical solution, the contact area between the upper clamping plate 2 and the elbow can be reduced, thereby avoiding the occurrence of straight areas on the surface of the elbow and ensuring the processing effect of the PE elbow.

[0079] In some embodiments, as Figure 3 and Figure 5 As shown, the two upper arc-shaped plates 21 are connected by a frame-shaped member 20 , and the frame-shaped member 20 is suitable for being sleeved on the swing end of the swing arm 1 to realize the connection between the swing arm 1 and the upper clamping plate 2 .

[0080] In some embodiments, as Figure 3 and Figure 5 As shown, the frame member 20 is provided with a through hole 201 communicating with its internal space, and the swing arm 1 is provided with a threaded groove 11 suitable for communicating with the through hole 201; there is a docking bolt 30 between the swing arm 1 and the frame member 20, and the docking bolt 30 is suitable for being inserted into the through hole 201 and being threadedly connected with the threaded groove 11 to realize a detachable connection relationship between the frame member 20 and the swing arm 1.

[0081] In some embodiments, as Figure 4 and Figure 5 As shown, the lower clamping plate 3 includes two lower arc-shaped plates 31 and a plurality of lower connecting plates 32 .

[0082] The two lower arc-shaped plates 31 are spaced apart on the upper clamping plate 2 along the swing axis of the swing arm 1 , and each lower arc-shaped plate 31 is hinged to the upper clamping plate 2 along the swing axis of the swing arm 1 .

[0083] The plurality of lower connecting plates 32 are disposed between the two lower arc-shaped plates 31 , and both ends of each lower connecting plate 32 are connected to the two lower arc-shaped plates 31 .

[0084] Accordingly, by adopting the above technical solution, the contact area between the lower clamping plate 3 and the elbow can be reduced, thereby avoiding the appearance of straight areas on the surface of the elbow and ensuring the processing effect of the PE elbow.

[0085] Based on the same inventive concept, an embodiment of the present application further provides a supporting mechanism, comprising a plurality of the aforementioned clamping devices for PE pipe bending processing, and the plurality of clamping devices are arranged at intervals around the main shaft 100 .

[0086] The beneficial effects of the support mechanism provided in this embodiment are the same as those of the aforementioned clamping device for PE pipe bending processing, and will not be repeated here.

[0087] The above content is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. The clamping device for PE pipe bending processing is characterized by: include: a swing arm, configured to be disposed on the main shaft of the traction device, with one end of the swing arm hinged to the outer wall of the main shaft, the hinge axis being perpendicular to the axis of the main shaft; the swing arm being transmission-connected to a swing drive member for driving the swing arm to swing relative to the main shaft; An upper clamping plate, fixedly connected to the swing end of the swing arm, with its thickness direction parallel to the hinge axis of the swing arm; as well as A lower splint is hinged to the upper splint, and both the hinge axis and thickness direction are parallel to the hinge axis of the swing arm; and a locking structure is provided between the lower splint and the upper splint; The vertical cross-section of the upper splint is a semicircular structure with the opening facing downward, and the vertical cross-section of the lower splint is a semicircular structure with the opening facing upward; When the locking structure connects the upper clamping plate and the lower clamping plate, an annular cavity suitable for clamping the outer periphery of the elbow is formed between the upper clamping plate and the lower clamping plate; When the upper clamping plate and the lower clamping plate are separated, the swing driving component can drive the swing arm to swing, so that the upper clamping plate and the lower clamping plate avoid the bent pipe.

2. The clamping device for PE pipe bending processing according to claim 1, characterized in that: The swing driving component includes: a connecting seat, configured to be hinged on the outer wall of the main shaft, with the hinge axis being parallel to the swing axis of the swing arm; and A linear cylinder is fixedly arranged on the connecting seat, and the power output axis is perpendicular to the hinge axis of the connecting seat; and the power output end of the linear cylinder is hinged to the swing arm, and the hinge axis is parallel to the swing axis of the swing arm.

3. The clamping device for PE pipe bending processing according to claim 1, characterized in that: The locking structure comprises: A positioning hole is provided on the upper clamping plate and passes through the upper clamping plate in a thickness direction; an alignment hole, which is formed on the lower clamping plate and passes through the lower clamping plate in a thickness direction; and The stop rod is suitable for being inserted into the positioning hole and the alignment hole that are communicated with each other to limit the relative swing of the upper clamping plate and the lower clamping plate.

4. The clamping device for PE pipe bending processing according to claim 3, characterized in that: The stop rod comprises: An internally threaded tube adapted to be inserted into the positioning hole and the alignment hole that are interconnected; and The external threaded rod is suitable for being inserted into the positioning hole and the alignment hole that are communicated with each other, and is threadably connected to the internal threaded pipe.

5. The clamping device for PE pipe bending processing according to claim 4, characterized in that: The internally threaded tube and the externally threaded rod are both provided with a limiting head extending outward; When the internally threaded tube and the externally threaded rod are inserted into the mutually communicating positioning hole and the alignment hole and are connected, the two limiting heads abut against the outer wall of the upper clamping plate and / or the lower clamping plate.

6. The clamping device for PE pipe bending processing according to claim 1, characterized in that: The upper splint comprises: Two upper arc-shaped plates are spaced apart along the swing axis of the swing arm and are both connected to the swing end of the swing arm; and A plurality of upper connecting plates are arranged between the two upper arc-shaped plates, and both ends of each upper connecting plate are respectively connected to the two upper arc-shaped plates; Wherein, the lower clamping plate is arranged between the two upper arc-shaped plates, and two sides of the lower clamping plate are hinged to the two upper arc-shaped plates respectively.

7. The clamping device for PE pipe bending processing according to claim 6, characterized in that: The two upper arc-shaped plates are connected via a frame-shaped member, and the frame-shaped member is suitable for being sleeved on the swing end of the swing arm.

8. The clamping device for PE pipe bending processing according to claim 7, characterized in that: The frame-shaped member is provided with a through hole connected to its internal space, and the swing arm is provided with a threaded groove suitable for connecting to the through hole; there is a docking bolt between the swing arm and the frame-shaped member, and the docking bolt is suitable for being inserted into the through hole and threadedly connected to the threaded groove.

9. The clamping device for PE pipe bending processing according to claim 1 or 6, characterized in that: The lower splint comprises: Two lower arc-shaped plates are arranged on the upper clamping plate at intervals along the swing axis of the swing arm, and each of the lower arc-shaped plates is hinged to the upper clamping plate along the swing axis of the swing arm; and A plurality of lower connecting plates are arranged between the two lower arc-shaped plates, and both ends of each lower connecting plate are respectively connected to the two lower arc-shaped plates.

10. The supporting mechanism is characterized in that: It comprises a plurality of clamping devices for processing PE pipe bends according to any one of claims 1 to 9, which are arranged around the main shaft.

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