Adjustable clamping device for processing PE (Poly Ethylene) bent pipe
By designing an adjustable clamping device, the problem of insufficient adaptability of existing PE bend processing devices is solved, and the adaptation and production efficiency of PE bends of different specifications is achieved.
Patent Information
- Application Number
- CN202422543623.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-10-21
AI Technical Summary
The existing PE bend processing devices cannot adapt to PE bends of different specifications, resulting in inefficient production efficiency and waste of materials.
An adjustable clamping device is designed, including a support arm, a slider, an alignment ring and a bump, and the positioning member adjusts the position of the device, adapting to PE bends of different bending angles and pipe diameters.
The adaptation of PE bent pipes of different specifications is achieved, and the smoothness and production efficiency of the processing process are improved.
Smart Images
Figure CN223223819U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of PE pipe bending processing, and specifically relates to an adjustable clamping device 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 has a single structure and cannot adapt to PE elbows of different specifications, especially for parameters such as the diameter and bending angle of the PE elbow. Only a single support device can be prepared according to a specific model to ensure the orderly processing of the PE elbow; however, this also leads to technical problems such as the generation of a large amount of waste materials and reduced production efficiency. Utility Model Content
[0005] The embodiment of the present application provides an adjustable clamping device for PE pipe bending processing, which is intended to adapt to PE pipe bending of different specifications, ensure the smoothness of the PE pipe bending processing process, and improve the production efficiency of the PE pipe bending.
[0006] To achieve the above objectives, the technical solution adopted in this application is:
[0007] Provided is an adjustable clamping device for PE pipe bending processing, comprising:
[0008] The support arm is used to be fixed on the ground through a column, or fixed on the main shaft of the PE pipe bending processing equipment through a ring; the length direction of the support arm is parallel to the horizontal plane, which is defined as the front-to-back direction;
[0009] a sliding member slidably connected to the support arm in a front-to-rear direction and having a positioning member for engaging with the support arm to limit movement of the sliding member;
[0010] An alignment ring is provided on the lower side of the sliding member and is connected to the sliding member; the axial direction of the alignment ring is parallel to the left-right direction, and the alignment ring has a notch extending radially therethrough for allowing the traction member of the PE elbow to pass through, so that the alignment ring can be sleeved on the outer circumference of the PE elbow;
[0011] A plurality of protrusions are fixedly connected to the outer side surface of the alignment ring facing the left and right directions, and the plurality of protrusions are arranged at intervals along the circumference of the alignment ring; each of the protrusions has a guide hole extending radially through the alignment ring, and an adjustment arm is slidably inserted into each guide hole, and a locking structure is provided between the adjustment arm and the corresponding protrusion;
[0012] Wherein, when the locking structure connects the adjusting arm and the protrusion, one end of the adjusting arm facing the central axis of the alignment ring can abut against the outer wall of the PE elbow.
[0013] In a possible implementation, the locking structure includes:
[0014] a locking nut, fixedly connected to the protrusion and axially arranged toward the adjusting arm;
[0015] a plurality of through holes, formed on the adjusting arm and spaced apart along the length of the adjusting arm, wherein each of the through holes is adapted to be coaxially connected to the locking nut; and
[0016] A stop bolt is threadedly connected to the locking nut and is suitable for being inserted into any one of the through holes to limit the movement of the adjustment arm relative to the protrusion.
[0017] In a possible implementation, a reserved hole communicating with the guide hole is provided on the convex surface of the protrusion, and the locking nut is fixedly connected to the convex surface of the protrusion and coaxially communicated with the reserved hole.
[0018] In a possible implementation, a sinking groove coaxially arranged with the reserved hole is provided on the inner wall of the guide hole;
[0019] When the stopping bolt passes through the reserved hole, is inserted into any one of the through holes and extends out, the extended end of the stopping bolt is suitable for being embedded in the sinking groove.
[0020] In a possible implementation, the alignment ring includes:
[0021] an upper clamping plate, disposed on the lower side of the sliding member and detachably connected to the sliding member, with a thickness direction thereof being parallel to the left-right direction; and
[0022] A lower splint is provided on the lower side of the upper splint, with a thickness direction thereof being parallel to the left-right direction, and one end of the lower splint is hinged to the upper splint along the left-right direction;
[0023] In which, the vertical cross-section of the upper splint is an arc-shaped structure with the opening facing downward, and the vertical cross-section of the lower splint is an arc-shaped structure with the opening facing upward; the gap is formed between the swinging end of the upper splint and one of the swinging ends of the lower splint, and there is a driving component between the upper splint and the lower splint, and the driving component can drive the lower splint to swing relative to the upper splint to increase or decrease the gap.
[0024] In a possible implementation, the driving component includes:
[0025] a swinging member, disposed on the outer side of the upper clamping plate, with one end hinged to the upper clamping plate in the left-right direction; and
[0026] A linear cylinder is fixedly connected to the swing end surface of the swing member, and its power output axis is parallel to the length direction of the swing member, and its power output end is hinged to the end of the lower clamping plate away from the notch in the left-right direction;
[0027] When the linear cylinder is started, the swing member drives the linear cylinder to swing relative to the upper clamping plate, and the lower clamping plate swings relative to the upper clamping plate.
[0028] In one possible implementation, the lower side of the sliding member has a mounting seat extending downward, and a portion of the mounting seat overlaps with the upper clamping plate in the left-right direction; the mounting seat has a connecting screw extending outward in the left-right direction, and the upper clamping plate has a mounting hole suitable for the connecting screw to pass through, and a mounting nut threadedly connected to the protruding portion of the connecting screw.
[0029] In a possible implementation, the sliding member adopts a sleeve structure suitable for being slidably sleeved on the support arm, and the sliding member is slidably sleeved on the support arm; the positioning member includes:
[0030] a plurality of jacks, each of which is provided on the sliding member and is in communication with the interior of the sliding member; and
[0031] A plurality of fixing nuts are fixedly connected to the outer wall of the sliding member and are in one-to-one communication with the plurality of the insertion holes;
[0032] Wherein, each of the fixing nuts is threadedly connected to a retaining bolt; and the retaining bolt is used to connect with the outer wall of the support arm through the corresponding insertion hole to limit the sliding of the sliding member relative to the support arm.
[0033] In one possible implementation, the support arm has scale marks extending along its length; the sliding member also has an observation hole connected to its interior, so that when the sliding member sliding sleeve is placed on the support arm, the observation hole and the scale marks partially overlap.
[0034] In a possible implementation, a gasket is fixedly connected to one end of the adjustment arm facing the central axis of the alignment ring; the gasket is made of an elastic material and is used to contact the outer wall of the PE elbow and undergo elastic deformation.
[0035] In an embodiment of the present application, the support arm is fixed to the ground by a column, or is fixed to the main shaft of the PE pipe bending processing equipment by a ring, so that the fixation of the device can be achieved; based on this, the relative position of the sliding member and the support arm is adjusted, and the relative position of the sliding member and the support arm is locked by a positioning member abutting the support arm, so that the device can adapt to PE pipes with different bending angles; at the same time, the relative position of each protrusion and the adjustment arm is adjusted, and the relative position of the protrusion and the adjustment arm is locked by connecting the protrusion and the adjustment arm through a locking structure, so that the device can adapt to PE pipes with different diameters, and ensure that the outer surface of the PE pipe can be connected with the adjustment arm, so as to achieve clamping and support of the PE pipe.
[0036] Compared with the prior art, the adjustable clamping device for PE pipe bending processing provided in this embodiment can adapt to PE pipe bending of different specifications to ensure the smoothness of the PE pipe bending processing process and improve the production efficiency of the PE pipe bending. BRIEF DESCRIPTION OF THE DRAWINGS
[0037] 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.
[0038] Figure 1 This is a schematic diagram of the three-dimensional structure of the adjustable clamping device for PE pipe bending processing provided in an embodiment of the present application;
[0039] Figure 2 for Figure 1 A partial enlarged schematic diagram of the middle circle A;
[0040] Figure 3 The second schematic diagram of the three-dimensional structure of the adjustable clamping device for PE pipe bending processing provided in an embodiment of the present application;
[0041] Figure 4 A partially enlarged schematic diagram of a sliding member used in an embodiment of the present application;
[0042] Figure 5 This is a schematic diagram of the exploded structure of the sliding member and the positioning member used in the embodiment of the present application;
[0043] Figure 6 A partially enlarged schematic diagram of the mounting base and the upper splint used in the embodiment of the present application under an exploded perspective;
[0044] Figure 7 A schematic diagram of the three-dimensional structure of the alignment ring and related components used in the embodiment of the present application;
[0045] Figure 8 A schematic diagram of the three-dimensional structure of the locking structure used in an embodiment of the present application from an explosion perspective;
[0046] Figure 9 This is a schematic cross-sectional view of the locking structure used in an embodiment of the present application from an explosion perspective;
[0047] Explanation of the accompanying drawings: 1. Support arm; 11. Scale mark; 2. Sliding part; 21. Mounting seat; 211. Connecting screw; 22. Observation hole; 3. Alignment ring; 31. Upper clamping plate; 311. Mounting hole; 312. Mounting nut; 32. Lower clamping plate; 4. Bump; 41. Guide hole; 42. Reserved hole; 43. Sinking groove; 5. Positioning member; 51. Socket; 52. Fixing nut; 521. Retaining bolt; 6. Adjusting arm; 7. Locking structure; 71. Locking nut; 72. Through hole; 73. Stop bolt; 8. Driving member; 81. Swinging member; 82. Linear cylinder; 9. Gasket; 100. Column; 200. Ring. DETAILED DESCRIPTION
[0048] 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.
[0049] 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.
[0050] 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.
[0051] 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.
[0052] Please also refer to Figures 1 to 9 The adjustable clamping device for PE pipe bending provided in this application is now described. The adjustable clamping device for PE pipe bending provided in this application comprises a support arm 1, a sliding member 2, an alignment ring 3 and a plurality of protrusions 4.
[0053] The support arm 1 is used to be fixed on the ground through a column 100, or fixed on the main shaft of the PE pipe bending processing equipment through a ring 200; wherein the main shaft refers to the cylinder in the PE pipe bending processing equipment that serves as the central axis of the pulling bend.
[0054] After the support arm 1 is fixed, the length direction of the support arm 1 is parallel to the horizontal plane, and the length direction of the support arm 1 is parallel to the direction of the part of the PE bent pipe that the device contacts toward the bending center; in this embodiment, for the sake of convenience of description, the length direction of the support arm 1 is defined as the front-to-back direction.
[0055] The sliding member 2 is slidably connected to the support arm 1 along the front-back direction, and has a positioning member 5 thereon for connecting with the support arm 1 to limit the movement of the sliding member 2.
[0056] The alignment ring 3 is arranged on the lower side of the sliding member 2, and the alignment ring 3 is connected to the sliding member 2; when the sliding member 2 is connected to the support arm 1 and the alignment ring 3 is connected to the sliding member 2, the axial direction of the alignment ring 3 is parallel to the left and right directions, and the alignment ring 3 has a notch that passes through along its radial direction for the traction member of the PE elbow to pass through, so that the alignment ring 3 can be placed on the outer periphery of the PE elbow and maintain a certain distance from the outer peripheral wall of the PE elbow.
[0057] The plurality of protrusions 4 are all fixedly connected to the outer side surface of the alignment ring 3 facing the left and right directions, and the plurality of protrusions 4 are arranged at intervals along the circumference of the alignment ring 3 .
[0058] Among them, each protrusion 4 has a guide hole 41 that passes through the radial direction of the alignment ring 3, and an adjustment arm 6 is slidably inserted in each guide hole 41; based on this, there is a locking structure 7 between the adjustment arm 6 and the corresponding protrusion 4, and the adjustment arm 6 and the protrusion 4 are connected by the locking structure 7, which can limit the relative movement of the adjustment arm 6 and the protrusion 4.
[0059] When the locking structure 7 connects the adjustment arm 6 and the protrusion 4, the end of the adjustment arm 6 facing the central axis of the alignment ring 3 can abut the outer wall of the PE elbow, so that multiple adjustment arms 6 cooperate to achieve the effect of clamping and supporting the PE elbow.
[0060] In an embodiment of the present application, the support arm 1 is fixed to the ground by a column 100, or is fixed to the main shaft of the PE pipe bending processing equipment by a collar 200, so as to achieve the fixation of the present device; based on this, the relative position of the sliding member 2 and the support arm 1 is adjusted, and the relative position of the sliding member 2 and the support arm 1 is locked by a positioning member 5 abutting the support arm 1, so that the present device can adapt to PE pipes with different bending angles; at the same time, the relative position of each protrusion 4 and the adjustment arm 6 is adjusted, and the relative position of the protrusion 4 and the adjustment arm 6 is locked by connecting the protrusion 4 and the adjustment arm 6 by a locking structure 7, so that the present device can adapt to PE pipes with different diameters, and ensure that the outer surface of the PE pipe can be connected with the adjustment arm 6, so as to achieve clamping and support of the PE pipe.
[0061] Compared with the prior art, the adjustable clamping device for PE pipe bending processing provided in this embodiment can adapt to PE pipe bending of different specifications to ensure the smoothness of the PE pipe bending processing process and improve the production efficiency of the PE pipe bending.
[0062] In some embodiments, as Figure 8 and Figure 9 As shown, the locking structure 7 includes a locking nut 71 , a plurality of through holes 72 and a stop bolt 73 .
[0063] The locking nut 71 is fixedly connected to the protrusion 4 and is axially arranged toward the adjustment arm 6 . In this embodiment, the axial direction of the locking nut 71 is parallel to the left-right direction.
[0064] A plurality of through holes 72 are provided on the adjusting arm 6 , and the plurality of through holes 72 are spaced apart along the length direction of the adjusting arm 6 ; wherein each through hole 72 can be coaxially connected to the aforementioned locking nut 71 .
[0065] The stop bolt 73 is threadedly connected to the locking nut 71 and is suitable for being inserted into any one of the through holes 72 to limit the movement of the adjustment arm 6 relative to the protrusion 4 .
[0066] In some embodiments, as Figure 8As shown, the convex surface of the protrusion 4 has a reserved hole 42 connected to the guide hole 41, and the locking nut 71 is fixedly connected to the convex surface of the protrusion 4 and coaxially connected to the reserved hole 42.
[0067] In some embodiments, as Figure 8 and Figure 9 As shown, a sinking groove 43 is provided on the inner wall of the guide hole 41 and is coaxially arranged with the reserved hole 42 .
[0068] By adopting the above technical solution, when the stop bolt 73 passes through the reserved holes 42 , is inserted into any one of the through holes 72 and extends out, the extended end of the stop bolt 73 is suitable for being embedded in the sinking groove 43 .
[0069] In some embodiments, as Figure 3 and Figure 7 As shown, the alignment ring 3 includes an upper clamping plate 31 and a lower clamping plate 32 .
[0070] The upper clamping plate 31 is disposed on the lower side of the sliding member 2 and is detachably connected to the sliding member 2 ; and a thickness direction of the upper clamping plate 31 is parallel to the left-right direction.
[0071] The lower splint 32 is arranged on the lower side of the upper splint 31, and its thickness direction is parallel to the left-right direction; one end of the lower splint 32 and the upper splint 31 is hinged along the left-right direction, and the hinge is arranged close to one end of the lower splint 32.
[0072] In this embodiment, the vertical cross-section of the upper clamping plate 31 is an arc-shaped structure with an opening facing downward, and the vertical cross-section of the lower clamping plate 32 is an arc-shaped structure with an opening facing upward.
[0073] After assembly, the aforementioned gap can be formed between the swinging end of the upper splint 31 and one of the swinging ends of the lower splint 32; and, there is a driving component 8 between the upper splint 31 and the lower splint 32, which drives the lower splint 32 to swing relative to the upper splint 31 through the driving component 8, so that the size of this gap can be increased or decreased.
[0074] In some embodiments, as Figure 2 、 Figure 3 and Figure 7 As shown, the driving member 8 includes a swinging member 81 and a linear cylinder 82 .
[0075] The swinging member 81 is arranged on the outside of the upper clamping plate 31, and one end thereof is hinged to the upper clamping plate 31 along the left-right direction; specifically, the upper clamping plate 31 has an angular protrusion extending outward, and the swinging member 81 is hinged to this protrusion.
[0076] The linear cylinder 82 is fixedly connected to the swing end face of the swing member 81, and its power output axis is parallel to the length direction of the swing member 81, and its power output end is hinged to the end of the lower clamping plate 32 away from the notch along the left and right directions.
[0077] By adopting the above technical solution, when the linear cylinder 82 is started, the swing member 81 can drive the linear cylinder 82 to swing relative to the upper clamping plate 31, and the lower clamping plate 32 to swing relative to the upper clamping plate 31, so as to achieve the technical effect of adjusting the size of the aforementioned gap.
[0078] In some embodiments, as Figure 2 、 Figure 3 and Figure 6 As shown, the lower side of the sliding member 2 has a mounting seat 21 extending downward, and a portion of the mounting seat 21 overlaps with the upper clamping plate 31 along the left-right direction.
[0079] The mounting seat 21 has a connecting screw 211 extending outward in the left-right direction. Specifically, the mounting seat 21 has a hole penetrating in the left-right direction, and the connecting screw 211 is slidably inserted into the hole.
[0080] The upper clamping plate 31 has a mounting hole 311 suitable for allowing the connecting screw 211 to pass through, and a mounting nut 312 threadedly connected to the protruding part of the connecting screw 211; in this embodiment, there are two mounting nuts 312, and the two mounting nuts 312 are respectively threadedly connected to the two ends of the connecting screw 211 to respectively abut against the two sides of the upper clamping plate 31 in the left and right directions.
[0081] In some embodiments, as Figure 5 As shown, the sliding member 2 adopts a sleeve structure suitable for being slidably sleeved on the support arm 1 , and the aforementioned sliding member 2 is slidably sleeved on the support arm 1 .
[0082] The positioning member 5 includes a plurality of insertion holes 51 and a plurality of fixing nuts 52 .
[0083] The plurality of insertion holes 51 are all formed on the sliding member 2 and are communicated with the inner space of the sliding member 2 .
[0084] The plurality of fixing nuts 52 are all fixedly connected to the outer wall of the sliding member 2 and are in one-to-one communication with the plurality of insertion holes 51 ; wherein each fixing nut 52 is threadedly connected to a retaining bolt 521 .
[0085] In actual use, each retaining bolt 521 is used to pass through the corresponding insertion hole 51 and connect with the outer wall of the support arm 1, thereby limiting the sliding member 2 from sliding relative to the support arm 1.
[0086] In some embodiments, as Figure 2 、 Figure 4 and Figure 5 As shown, the support arm 1 has a scale mark 11 extending along its length direction; based on this, the sliding member 2 also has an observation hole 22 connected to the interior thereof.
[0087] By adopting the above technical solution, when the sliding member 2 is slidably placed on the support arm 1, the observation hole 22 partially overlaps with the scale mark 11. On-site personnel can see the reading of the scale mark 11 through the observation hole 22 to obtain the distance between the starting position of the sliding member 2 and the support arm 1, thereby adapting to PE elbows with different bending angles.
[0088] In some embodiments, as Figure 8 As shown, a gasket 9 is fixedly connected to one end of the adjustment arm 6 facing the central axis of the alignment ring 3, and the gasket 9 is made of elastic material.
[0089] By adopting the above technical solution, the gasket 9 is used to contact the outer wall of the PE elbow and undergo elastic deformation to enhance the contact effect between the adjustment arm 6 and the PE elbow.
[0090] 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. Adjustable clamping device for PE pipe bending, characterized by: include: The support arm is used to be fixed on the ground through a column, or fixed on the main shaft of the PE pipe bending processing equipment through a ring; the length direction of the support arm is parallel to the horizontal plane, which is defined as the front-to-back direction; a sliding member slidably connected to the support arm in a front-to-rear direction and having a positioning member for engaging with the support arm to limit movement of the sliding member; An alignment ring is provided on the lower side of the sliding member and is connected to the sliding member; the axial direction of the alignment ring is parallel to the left-right direction, and the alignment ring has a notch extending radially therethrough for allowing the traction member of the PE elbow to pass through, so that the alignment ring can be sleeved on the outer circumference of the PE elbow; A plurality of protrusions are fixedly connected to the outer side surface of the alignment ring facing the left and right directions, and the plurality of protrusions are arranged at intervals along the circumference of the alignment ring; each of the protrusions has a guide hole extending radially through the alignment ring, and an adjustment arm is slidably inserted into each guide hole, and a locking structure is provided between the adjustment arm and the corresponding protrusion; Wherein, when the locking structure connects the adjusting arm and the protrusion, one end of the adjusting arm facing the central axis of the alignment ring can abut against the outer wall of the PE elbow.
2. The adjustable clamping device for PE pipe bending processing according to claim 1, characterized in that: The locking structure comprises: a locking nut, fixedly connected to the protrusion and axially arranged toward the adjusting arm; a plurality of through holes, formed on the adjusting arm and spaced apart along the length of the adjusting arm, wherein each of the through holes is adapted to be coaxially connected to the locking nut; and A stop bolt is threadedly connected to the locking nut and is suitable for being inserted into any one of the through holes to limit the movement of the adjustment arm relative to the protrusion.
3. The adjustable clamping device for PE pipe bending processing according to claim 2, characterized in that: The convex surface of the convex block is provided with a reserved hole communicated with the guide hole, and the locking nut is fixedly connected to the convex surface of the convex block and coaxially communicated with the reserved hole.
4. The adjustable clamping device for PE pipe bending processing according to claim 3, characterized in that: A sinking groove coaxially arranged with the reserved hole is provided on the inner wall of the guide hole; When the stopping bolt passes through the reserved hole, is inserted into any one of the through holes and extends out, the extended end of the stopping bolt is suitable for being embedded in the sinking groove.
5. The adjustable clamping device for PE pipe bending processing according to claim 1, characterized in that: The alignment ring comprises: an upper clamping plate, disposed on the lower side of the sliding member and detachably connected to the sliding member, with a thickness direction thereof being parallel to the left-right direction; and A lower splint is provided on the lower side of the upper splint, with a thickness direction thereof being parallel to the left-right direction, and one end of the lower splint is hinged to the upper splint along the left-right direction; In which, the vertical cross-section of the upper splint is an arc-shaped structure with the opening facing downward, and the vertical cross-section of the lower splint is an arc-shaped structure with the opening facing upward; the gap is formed between the swinging end of the upper splint and one of the swinging ends of the lower splint, and there is a driving component between the upper splint and the lower splint, and the driving component can drive the lower splint to swing relative to the upper splint to increase or decrease the gap.
6. The adjustable clamping device for PE pipe bending processing according to claim 5, characterized in that: The driving member comprises: a swinging member, disposed on the outer side of the upper clamping plate, with one end hinged to the upper clamping plate in the left-right direction; and A linear cylinder is fixedly connected to the swing end surface of the swing member, and its power output axis is parallel to the length direction of the swing member, and its power output end is hinged to the end of the lower clamping plate away from the notch in the left-right direction; When the linear cylinder is started, the swing member drives the linear cylinder to swing relative to the upper clamping plate, and the lower clamping plate swings relative to the upper clamping plate.
7. The adjustable clamping device for PE pipe bending processing according to claim 5, characterized in that: The lower side of the sliding member has a mounting seat extending downward, and part of the mounting seat overlaps with the upper clamping plate in the left-right direction; the mounting seat has a connecting screw extending outward in the left-right direction, and the upper clamping plate has a mounting hole suitable for the connecting screw to pass through, and a mounting nut threadedly connected to the protruding part of the connecting screw.
8. The adjustable clamping device for PE pipe bending processing according to claim 1, characterized in that: The sliding member adopts a sleeve structure suitable for slidingly sleeved on the support arm, and the sliding member is slidably sleeved on the support arm; the positioning component includes: a plurality of jacks, each of which is provided on the sliding member and is in communication with the interior of the sliding member; and A plurality of fixing nuts are fixedly connected to the outer wall of the sliding member and are in one-to-one communication with the plurality of the insertion holes; Wherein, each of the fixing nuts is threadedly connected to a retaining bolt; and the retaining bolt is used to connect with the outer wall of the support arm through the corresponding insertion hole to limit the sliding of the sliding member relative to the support arm.
9. The adjustable clamping device for PE pipe bending processing according to claim 8, characterized in that: The support arm has scale marks extending along its length; the sliding member also has an observation hole connected to its interior, so that when the sliding member is slidably placed on the support arm, the observation hole and the scale marks partially overlap.
10. The adjustable clamping device for PE pipe bending according to any one of claims 1 to 9, characterized in that: A gasket is fixedly connected to one end of the adjusting arm facing the central axis of the alignment ring; the gasket is made of elastic material and is used to contact the outer wall of the PE elbow and undergo elastic deformation.