Elbow groove clamping device

Abstract

The utility model provides an elbow groove clamping device, and relates to the technical field of pipeline installation, the elbow groove clamping device comprises a turntable, two sliding blocks and two clamping blocks, the two sliding blocks are symmetrically arranged on one side of the turntable in a sliding mode through sliding grooves, one side of each clamping block is fixed on one side of the corresponding sliding block through a bolt, one side of each clamping block is provided with a special-shaped groove, and the other side of each clamping block is provided with a clamping groove. The shape of the special-shaped groove is matched with the shape of the bent pipe, an adjusting device is arranged on the inner wall of the special-shaped groove, the clamping distance between the two clamping blocks is adjustably shortened by the adjusting device through two clamping plates, and by arranging the two clamping plates, under the action of a threaded rod, the threaded rod can drive the clamping plates to move in the vertical direction, so that the bent pipe is clamped in the special-shaped groove. And one sides of the two clamping plates abut against the outer surface of the elbow, the contact area between the clamping blocks and the elbow can be increased, the friction force between the clamping blocks and the elbow is increased, and the two clamping blocks can fix the elbow more stably.

Description

Technical Field

[0001] This utility model relates to the field of pipeline installation technology, and in particular to a bevel clamping device for elbows. Background Technology

[0002] Elbow beveling refers to a processing procedure performed on the end of the pipe wall at the end of an elbow. It is typically used for pipe connections or to change the flow direction within a pipe. The elbow beveling clamping device is an important component of a beveling machine, specifically designed to clamp elbows and other pipe fittings to ensure the stability and processing accuracy of the workpiece during the beveling process.

[0003] When the elbow beveling clamping device clamps the elbow, it mainly uses the friction generated by the two clamping blocks with irregular grooves to squeeze the elbow to fix it. However, when the outer diameter of the elbow is too small, the contact area between the irregular groove on the inner side of the clamping block and the outer surface of the elbow will become relatively limited. This will result in less friction between the clamping block and the elbow, which will lead to unstable fixing of the elbow and make it difficult to beveling the elbow. Utility Model Content

[0004] This utility model proposes a beveling clamping device for elbows to address the problem that when the outer diameter of an elbow is too small, the contact area between the irregular groove on the inner side of the clamping block and the outer surface of the elbow becomes relatively limited, which leads to a small friction between the clamping block and the elbow, resulting in an unstable fixation of the elbow and making it inconvenient to perform beveling on the elbow.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a bevel clamping device for elbows, comprising a turntable, two sliders and two clamping blocks. The two sliders are symmetrically slidably disposed on one side of the turntable via sliding grooves. The clamping blocks are welded to one side of the sliders. A shaped groove is provided on one side of the clamping block. The shape of the shaped groove is adapted to the shape of the elbow. An adjustment device is provided on the inner wall of the shaped groove. The adjustment device adjusts the clamping distance between the two clamping blocks by means of two clamping plates.

[0006] The effect achieved by the above components is that by setting two clamping plates, the clamping plates can extend to one side of the clamping block, thereby firmly clamping the elbow with a small outer diameter, which facilitates the beveling of the elbow.

[0007] Preferably, the adjusting device includes two clamping plates. The inner wall of the irregular groove is provided with a telescopic groove that penetrates the irregular groove. The clamping plates are inserted into the inner wall of the telescopic groove. Both ends of the clamping plates pass through the interior of the telescopic groove and are fixedly installed with the same L-shaped plate. The two sides of the L-shaped plate are slidably arranged on the adjacent sides of the clamping block via slide rails. An extension block is fixedly installed on the outer surface of the L-shaped plate via a disassembly assembly. A threaded rod is rotatably connected to the inner wall of the extension block via a bearing. A threaded hole block is threadedly connected to the outer surface of the threaded rod. One end of the threaded hole block is welded to the outer surface of the clamping block.

[0008] The effect achieved by the above components is as follows: when the outer diameter of the elbow held by the clamping device is small and the irregular groove on one side of the two clamping blocks cannot fully abut against the elbow, the threaded rod is rotated. The threaded rod will drive the clamping plate connected to the L-shaped plate to move on the inner wall of the expansion groove until one side of the two clamping plates abuts against the outer surface of the elbow. This can increase the contact area between the clamping blocks and the elbow and increase the friction between the clamping blocks and the elbow, making the two clamping blocks more firmly fixed to the elbow.

[0009] Preferably, one side of the clamping plate is arc-shaped, and the shape of the outer surface of the clamping plate is adapted to the shape of the inner wall of the expansion groove, and one side of the clamping plate is arc-shaped.

[0010] The effect achieved by the above components is that when the clamping plate is fully inserted into the expansion groove, one side of the clamping plate will form a continuous arc surface with the inner wall of the irregular groove, thus not affecting the clamping of other types of elbows by the two clamping blocks.

[0011] Preferably, bolts are threaded into the inner walls of both ends of the L-shaped plate, and the bolts are located on one side of the clamping block.

[0012] The effect achieved by the above components is as follows: by setting the bolts and rotating the bolts until one end of the bolts abuts against the outer surface of the clamping block, the L-shaped plate and the clamping block can be auxiliaryly fixed, thereby locking the threaded rod and preventing the clamping plate from shifting due to the rotation of the threaded rod.

[0013] Preferably, rubber plates are bonded to the inner walls of both sides of the clamping block, and grooves are evenly provided on one side of the rubber plates, which are located at one end of the bolt.

[0014] The effect achieved by the above components is that by setting a rubber plate with grooves, the friction between the bolt and the contact surface of the clamping block can be increased, which helps to prevent the problem of insufficient friction on the outer surface of the metal clamping block, resulting in an unstable fixing of the bolt L-shaped plate.

[0015] Preferably, the disassembly assembly includes two slot blocks, one side of each slot block is fixedly connected to both sides of the extension block, one side of each slot block abuts against the adjacent sides of the L-shaped plate, a threaded pin is inserted into the inner wall of each slot block, one end of the threaded pin is fixedly connected to one side of the L-shaped plate, and a nut is threaded onto the outer surface of the threaded pin.

[0016] The effect achieved by the above components is as follows: the L-shaped plate is fitted onto the outer surface of the clamping block, so that the clamping plate enters the telescopic groove, the slide rail on the L-shaped plate enters the slide groove on the clamping block, and the threaded pin enters the inner wall of the corresponding slot block. Then, the nut is rotated so that one side of the nut abuts against one side of the slot block, thus completing the installation of the clamping plate. Conversely, this also allows the clamping plate to be disassembled, which facilitates the disassembly, maintenance, and replacement of the clamping plate according to actual needs.

[0017] Preferably, one end of the threaded pin is fixedly connected to a circular block, and the outer diameter of the circular block is larger than the outer diameter of the threaded pin.

[0018] The effect achieved by the above-mentioned components is that by setting up a round block, one end of the threaded pin can be blocked, which helps to prevent the nut from easily coming off the threaded pin and being lost.

[0019] Preferably, a fixing block is fixedly connected to one corner of the L-shaped plate, and one side of the fixing block abuts against one side of the extension block.

[0020] The effect achieved by the above components is that by setting the fixing block, the fixing block can quickly position and provide auxiliary support for the extension block, thereby improving the stability of the clamp installation.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0022] In this invention, by setting two clamping plates, the threaded rod can drive the clamping plates to move in the vertical direction under the action of the threaded rod, so that one side of each clamping plate abuts against the outer surface of the elbow. This increases the contact area between the clamping blocks and the elbow, and increases the friction between the clamping blocks and the elbow, making the two clamping blocks more firmly fixed to the elbow. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the main body of this utility model;

[0024] Figure 2 This is a three-dimensional structural diagram of the adjusting device of this utility model;

[0025] Figure 3 This utility model Figure 2 A magnified structural diagram at point A;

[0026] Figure 4 This utility model Figure 2 A magnified structural diagram at point B.

[0027] Legend: 1. Turntable; 2. Slider; 3. Clamping block; 4. Adjustment device; 41. Clamping plate; 42. L-shaped plate; 43. Threaded rod; 44. Threaded hole block; 45. Bolt; 46. Rubber plate; 47. Telescopic groove; 48. Extension block; 5. Disassembly assembly; 51. Slot block; 52. Threaded pin; 53. Nut; 54. Round block; 55. Fixing block; 6. Irregular groove. Detailed Implementation

[0028] Example 1, referring to Figures 1-3 As shown, this embodiment discloses a beveling clamping device for elbows, including a turntable 1, two sliders 2, and two clamping blocks 3. The turntable 1 is generally rotatably mounted on a beveling machine, which can drive the elbow to rotate, thereby facilitating the beveling of the elbow. The two sliders 2 are symmetrically slidably disposed on one side of the turntable 1 through sliding grooves. The clamping blocks 3 are welded to one side of the sliders 2. A shaped groove 6 is opened on one side of the clamping block 3. The shape of the shaped groove 6 is adapted to the shape of the elbow. An adjustment device 4 is provided on the inner wall of the shaped groove 6. The adjustment device 4 adjusts the clamping distance between the two clamping blocks 3 by means of two clamping plates 41. The adjustment device 4 includes two clamping plates 41. A telescopic groove 47 is opened on the inner wall of the shaped groove 6. The telescopic groove 47 penetrates the shaped groove 6. The clamping plates 41 are inserted into the inner wall of the telescopic groove 47. Both ends of the clamping plates 41 pass through the interior of the telescopic groove 47 and are fixedly installed with the same clamping device 41. L-shaped plate 42 is slidably mounted on both sides of clamping block 3 via slide rails. Extension block 48 is fixedly installed on the outer surface of L-shaped plate 42 via disassembly assembly 5. Threaded rod 43 is rotatably connected to the inner wall of extension block 48 via bearing. Threaded hole block 44 is threadedly connected to the outer surface of threaded rod 43. One end of threaded hole block 44 is welded to the outer surface of clamping block 3. When the outer diameter of the elbow held by the clamping device is small, and the irregular groove 6 on one side of the two clamping blocks 3 cannot fully abut against the elbow, rotating threaded rod 43 will cause clamping plate 41 connected to L-shaped plate 42 to move along the inner wall of expansion groove 47 until one side of both clamping plates 41 abuts against the outer surface of the elbow. This increases the contact area between clamping block 3 and elbow, and increases the friction between clamping block 3 and elbow, making the fixation of elbow by the two clamping blocks 3 more stable.

[0029] Reference Figure 2 and Figure 3 As shown, one side of the clamping plate 41 is arc-shaped, and the shape of the outer surface of the clamping plate 41 is adapted to the shape of the inner wall of the expansion groove 47. When the clamping plate 41 is fully inserted into the expansion groove 47, one side of the clamping plate 41 will form a continuous arc surface with the inner wall of the irregular groove 6, so as not to affect the clamping of other types of elbows by the two clamping blocks 3.

[0030] Reference Figures 2-4 As shown, bolts 45 are threaded into the inner walls of both ends of the L-shaped plate 42 and are set on one side of the clamping block 3. By setting the bolts 45 and rotating the bolts 45 until one end of the bolts 45 abuts against the outer surface of the clamping block 3, the L-shaped plate 42 and the clamping block 3 can be auxiliaryly fixed, thereby locking the threaded rod 43 and preventing the clamping plate 41 from shifting due to the rotation of the threaded rod 43. Rubber plates 46 are glued to the inner walls of both sides of the clamping block 3. Grooves are evenly opened on one side of the rubber plates 46 and the rubber plates 46 are set at one end of the bolts 45. By setting the rubber plates 46 with grooves, the friction between the contact surface of the bolts 45 and the clamping block 3 can be increased, which helps to prevent the problem of insufficient friction on the outer surface of the metal clamping block 3, which leads to the bolts 45 and L-shaped plate 42 not being fixed securely.

[0031] Reference Figure 2 and Figure 3 As shown, the disassembly assembly 5 includes two retaining blocks 51. One side of each retaining block 51 is fixedly connected to both sides of the extension block 48. One side of each retaining block 51 abuts against the adjacent sides of the L-shaped plate 42. Threaded pins 52 are inserted into the inner wall of the retaining blocks 51. One end of each threaded pin 52 is fixedly connected to one side of the L-shaped plate 42. Nuts 53 are threaded onto the outer surface of the threaded pins 52. The L-shaped plate 42 is fitted onto the outer surface of the clamping block 3, allowing the clamping plate 41 to enter the telescopic groove 47 and onto the L-shaped plate 42. The slide rail enters the slide groove on the clamping block 3 and the threaded pin 52 enters the inner wall of the corresponding slot block 51. The slot openings of the upper and lower clamping blocks 3 and the slot blocks 51 are opposite each other. Only in this way can the threaded pin 52 enter the inner wall of the slot block 51 normally. Then, rotate the nut 53 so that one side of the nut 53 abuts against one side of the slot block 51, thus completing the installation of the clamping plate 41. Correspondingly, this also allows the clamping plate 41 to be disassembled, which facilitates the disassembly, maintenance and replacement of the clamping plate 41 according to actual needs.

[0032] Reference Figure 2 and Figure 3 As shown, a round block 54 is fixedly connected to one end of the threaded pin 52. The outer diameter of the round block 54 is larger than the outer diameter of the threaded pin 52. By setting the round block 54, one end of the threaded pin 52 can be blocked, which helps to prevent the nut 53 from easily dislodging from the threaded pin 52 and being lost. A fixing block 55 is fixedly connected to the corner of one side of the L-shaped plate 42. One side of the fixing block 55 abuts against one side of the extension block 48. By setting the fixing block 55, the fixing block 55 can quickly position and provide auxiliary support for the extension block 48, thereby improving the stability of the clamping plate 41 installation.

[0033] Working principle: When the outer diameter of the elbow held by the clamping device is small, and the irregular groove 6 on one side of the two clamping blocks 3 cannot fully abut against the elbow, the threaded rod 43 is rotated. The threaded rod 43 will drive the clamping plate 41 connected to the L-shaped plate 42 to move on the inner wall of the telescopic groove 47 until one side of both clamping plates 41 abuts against the outer surface of the elbow. Then, the bolt 45 is rotated until one end of the bolt 45 abuts against the rubber plate 46 on the outer surface of the clamping block 3. This can provide auxiliary fixation between the L-shaped plate 42 and the clamping block 3, thereby locking the threaded rod 43 and preventing the threaded rod 43 from rotating and causing the elbow to be clamped. If plate 41 shifts, the clamping plate 41 can increase the contact area between clamping block 3 and elbow, and increase the friction between clamping block 3 and elbow, making the two clamping blocks 3 more secure in fixing elbow; the L-shaped plate 42 is fitted onto the outer surface of clamping block 3, and clamping plate 41 enters the expansion groove 47, the slide rail on L-shaped plate 42 enters the slide groove on clamping block 3, extension block 48 and fixing block 55 abut, and threaded pin 52 enters the inner wall of the corresponding slot block 51. Then, the nut 53 is rotated so that one side of the nut 53 abuts against one side of the slot block 51, thus completing the installation of clamping plate 41.

Claims

1. A bevel clamping device for elbows, comprising a turntable (1), two sliders (2) and two clamping blocks (3), characterized in that: Two sliders (2) are symmetrically slidably arranged on one side of the turntable (1) through a sliding groove. The clamping block (3) is welded to one side of the slider (2). A shaped groove (6) is opened on one side of the clamping block (3). The shape of the shaped groove (6) is adapted to the shape of the bent pipe. An adjustment device (4) is provided on the inner wall of the shaped groove (6). The adjustment device (4) adjusts the clamping distance between the two clamping blocks (3) by means of two clamping plates (41).

2. The elbow bevel clamping device according to claim 1, characterized in that: The adjusting device (4) includes two clamping plates (41). The inner wall of the irregular groove (6) is provided with a telescopic groove (47). The telescopic groove (47) passes through the irregular groove (6). The clamping plate (41) is inserted into the inner wall of the telescopic groove (47). Both ends of the clamping plate (41) pass through the interior of the telescopic groove (47) and are fixedly installed with the same L-shaped plate (42). The two sides of the L-shaped plate (42) are slidably arranged on the adjacent sides of the clamping block (3) via slide rails. An extension block (48) is fixedly installed on the outer surface of the L-shaped plate (42) via a disassembly assembly (5). A threaded rod (43) is rotatably connected to the inner wall of the extension block (48) via a bearing. A threaded hole block (44) is threadedly connected to the outer surface of the threaded rod (43). One end of the threaded hole block (44) is welded to the outer surface of the clamping block (3).

3. The elbow bevel clamping device according to claim 2, characterized in that: One side of the clamp (41) is arc-shaped, and the shape of the outer surface of the clamp (41) is adapted to the shape of the inner wall of the expansion groove (47).

4. The elbow bevel clamping device according to claim 2, characterized in that: Bolts (45) are threaded into the inner walls at both ends of the L-shaped plate (42), and the bolts (45) are located on one side of the clamping block (3).

5. The elbow bevel clamping device according to claim 4, characterized in that: The inner walls on both sides of the clamping block (3) are bonded with rubber plates (46), and the rubber plates (46) are evenly provided with grooves on one side. The rubber plates (46) are set at one end of the bolt (45).

6. The elbow bevel clamping device according to claim 2, characterized in that: The disassembly assembly (5) includes two slot blocks (51). One side of each slot block (51) is fixedly connected to both sides of the extension block (48). One side of each slot block (51) abuts against the adjacent sides of the L-shaped plate (42). A threaded pin (52) is inserted into the inner wall of each slot block (51). One end of the threaded pin (52) is fixedly connected to one side of the L-shaped plate (42). A nut (53) is threaded onto the outer surface of the threaded pin (52).

7. The elbow bevel clamping device according to claim 6, characterized in that: One end of the threaded pin (52) is fixedly connected to a round block (54), the outer diameter of the round block (54) being larger than the outer diameter of the threaded pin (52).

8. The elbow bevel clamping device according to claim 6, characterized in that: A fixing block (55) is fixedly connected to one corner of the L-shaped plate (42), and one side of the fixing block (55) abuts against one side of the extension block (48).

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