Clamping tool convenient to adjust and used for elbow machining
Technical Field
The utility model relates to the technical field of elbow clamping tools, in particular to a clamping tool convenient to adjust for elbow machining.
Background
In the pipeline system, the elbow is a pipe fitting for changing the pipeline direction, wherein the most commonly used elbow angles are 45 degrees, 90 degrees and 180 degrees respectively, and other abnormal elbow angles such as 60 degrees are also included according to engineering requirements, and the elbow materials comprise cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, nonferrous metals, plastics and the like.
When the elbow is connected with the pipe fitting, in order to ensure the tightness of the pipe fitting in the use process and the convenience of later maintenance, flange plates are welded at two ends of the elbow, and the elbow is fixed while the flange plates are welded.
But current clamping device can only be fixed to the elbow centre gripping of same angle, has brought the inconvenience for staff's operation, has reduced clamping device's compatibility, in addition, when the elbow is welding the ring flange, because the bending property of elbow itself for it can't the level place, leads to the elbow to the one end slope of buckling in welding process easily, is difficult to align with the ring flange, and then influences welded precision, reduces leakproofness and stability between the pipe-line system.
Therefore, it is necessary to provide a clamping tool for elbow processing, which is convenient to adjust, so as to solve the above problems.
Disclosure of utility model
The utility model aims to provide a clamping tool for elbow processing, which is convenient to adjust, so as to solve the problems that the existing clamping device can only clamp and fix an elbow at the same angle, inconvenience is brought to the operation of staff, the compatibility of the clamping device is reduced, in addition, the elbow cannot be horizontally placed due to the bending characteristic of the elbow when the flange is welded, the elbow is easy to incline towards one bent end in the welding process, and is difficult to align with the flange, thereby affecting the welding precision and reducing the sealing property and stability between pipeline systems.
In order to achieve the above purpose, the clamping tool for elbow processing, which is convenient to adjust, comprises a bottom plate, wherein an adjusting mechanism is arranged above the bottom plate and comprises two connecting blocks, one end of each connecting block is fixedly provided with a rotating rod in a penetrating mode, a first ratchet wheel is fixedly sleeved on each rotating rod, one end of each rotating rod, far away from the first ratchet wheel, is movably sleeved with a second ratchet wheel, a spring is movably sleeved on each rotating rod, and the springs are fixedly connected to the second ratchet wheels.
Preferably, the support frame is fixedly installed on two sides of the top of the bottom plate, the rotating groove is formed in the top of the support frame, the rotating rod is rotationally connected in the corresponding rotating groove, and one end, away from the second ratchet wheel, of the spring is fixedly connected to the inner wall of the rotating groove.
Preferably, the two sides of the outer wall of the second ratchet wheel are fixedly provided with connecting rods, the connecting rods are slidably connected to the supporting frame, and a baffle is fixedly arranged between the two connecting rods.
Preferably, the screw hole has been seted up to one side of support frame, and screw hole threaded connection has first threaded rod, and two relative one ends of first threaded rod all rotate and are connected with the clamp splice, the clamp splice is the arc structure, the clamp splice slides the laminating on the bottom plate.
Preferably, the sliding grooves are formed in one side, opposite to the two connecting blocks, of each connecting block, the sliding blocks are connected in the sliding grooves in a sliding mode, supporting plates are fixedly installed between the two sliding blocks, and arc-shaped grooves are formed in the tops of the supporting plates.
Preferably, the sliding block is provided with a second threaded rod in a threaded connection mode, the second threaded rod is rotationally connected to the inner wall of the sliding groove, one end of the second threaded rod is rotationally connected to the sliding groove, and the other end of the second threaded rod is movably arranged on the connecting block in a penetrating mode.
The utility model has the technical effects and advantages that:
1. According to the utility model, the first ratchet wheel is always contacted with the inclined plane of the second ratchet wheel in the rotating process, so that the angle of the connecting block is adjusted, and meanwhile, one end of the elbow is kept parallel to the bottom plate by being matched with the supporting plate, so that the elbow is prevented from being inclined when the flange plate is welded, and the welding precision is prevented from being reduced;
2. According to the clamping device, the clamping blocks are attached to the surfaces of the elbows, so that the elbows with different specifications are clamped and fixed, and the compatibility of the clamping device is improved.
Drawings
Fig. 1 is a schematic view of a clamping tool for elbow processing, which is convenient to adjust, according to the utility model.
Fig. 2 is a schematic view of another view angle structure of the clamping tool for elbow processing, which is convenient to adjust.
FIG. 3 is a schematic illustration of the adjustment of the present utility model a structural cross-section of the mechanism.
FIG. 4 is a schematic view of the first ratchet, the second ratchet and the rotating lever according to the present utility model.
The device comprises a base plate 1, a support frame 2, a support frame 3, a connecting block 4, a supporting plate 5, a first threaded rod 6, a clamping block 7, a second threaded rod 8, a sliding block 9, a rotating rod 10, a first ratchet wheel 11, a second ratchet wheel 12, a spring 13, a connecting rod 14, a baffle 15 and a rotating groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a clamping tool for elbow machining, which is convenient to adjust and shown in fig. 1-4, and comprises a bottom plate 1, wherein supporting frames 2 are fixedly arranged on two sides of the top of the bottom plate 1.
Further, a threaded hole is formed in one side of the supporting frame 2, a first threaded rod 5 is connected with threads in the threaded hole, clamping blocks 6 are connected to opposite ends of the two first threaded rods 5 in a rotating mode, the clamping blocks 6 are used for clamping elbows, the elbows are kept parallel to the bottom plate 1, the clamping blocks 6 are of arc structures, the arc structures can be better attached to the surface of a tubular object, and the clamping blocks 6 are attached to the bottom plate 1 in a sliding mode.
During operation, according to the diameter size of elbow, rotate first threaded rod 5, laminate at the surface of elbow through clamp splice 6 to realize carrying out the centre gripping to the elbow of different specifications fixedly, improved clamping device's compatibility.
Considering that the elbow is when welding the ring flange, because the bending property of elbow itself for it can't the level place, lead to the elbow to the one end slope of buckling easily in the welding process, be difficult to align with the ring flange, and then influence welded precision, consequently, be provided with adjustment mechanism in the top of bottom plate 1, adjustment mechanism includes connecting block 3, connecting block 3 is provided with two, connecting block 3's one end is fixed wears to have dwang 9, and dwang 15 has been seted up at support frame 2's top, and dwang 9 rotates to be connected in corresponding dwang 15.
Further, the sliding grooves are formed in one side, opposite to the two connecting blocks 3, of each connecting block, a sliding block 8 is connected in the sliding grooves in a sliding mode, a second threaded rod 7 is connected to the sliding blocks 8 in a threaded mode, one end of the second threaded rod 7 is connected to the sliding grooves in a rotating mode, and the other end of the second threaded rod 7 is movably arranged on the connecting block 3 in a penetrating mode.
Specifically, fixed mounting has fagging 4 between two slider 8, and fagging 4 is used for supporting the one end that the elbow was buckled, and arc wall has been seted up at the top of fagging 4, and the laminating that arc wall can be fine is at the surface of elbow.
During operation, the second threaded rod 7 is rotated, the sliding block 8 slides on the second threaded rod 7, the sliding block 8 drives the supporting plate 4 to move, one end of the elbow is inclined through the supporting plate 4 to be supported, the other end of the elbow is parallel to the bottom plate 1, and therefore the elbow is prevented from inclining when the flange plate is welded, and the welding precision is reduced.
Considering that the existing clamping device can only clamp and fix the elbow at the same angle, inconvenience is brought to the operation of staff, therefore, a first ratchet wheel 10 is fixedly sleeved on a rotating rod 9, a second ratchet wheel 11 is movably sleeved at one end of the rotating rod 9 far away from the first ratchet wheel 10, a spring 12 is movably sleeved on the rotating rod 9, the spring 12 is fixedly connected with the second ratchet wheel 11, the spring 12 is used for resetting the second ratchet wheel 11, the first ratchet wheel 10 is limited, and one end of the spring 12 far away from the second ratchet wheel 11 is fixedly connected with the inner wall of a rotating groove 15
Specifically, the first ratchet wheel 10 is matched with the second ratchet wheel 11, so that the angle of the connecting block 3 is controlled.
Further, connecting rods 13 are fixedly installed on two sides of the outer wall of the second ratchet wheel 11, the connecting rods 13 are used for limiting the second ratchet wheel 11, the second ratchet wheel 11 can only transversely slide on the connecting rods 13, the connecting rods 13 are connected to the support frame 2 in a sliding mode, a baffle 14 is fixedly installed between the two connecting rods 13, and the baffle 14 is used for limiting the connecting rods 13 and resetting the connecting blocks 3.
During specific work, according to the angle that the elbow was buckled, promote connecting block 3 towards the one end rotation that the elbow was buckled for connecting block 3 is rotatory with dwang 9 centre of a circle, and dwang 9 drives first ratchet 10 and rotates, through first ratchet 10 in the inclined plane contact of rotation in-process with second ratchet 11 all the time, and spring 12 continuous compression resets, thereby realizes adjusting the angle of connecting block 3.
When the first ratchet wheel 10 stops rotating, the first ratchet wheel 10 is reset through the spring 12, and the first ratchet wheel 10 is in contact with a plane on the second ratchet wheel 11, so that the connecting block 3 is limited, and the angle of the connecting block 3 is limited.
It should be noted that, the bends with the same diameter, different angles, and different arc lengths of the bends are also different, so that it is necessary to readjust the stay plate 4, so as to achieve that one end of the bend is kept parallel to the bottom plate 1.
After the flanges are welded at the two ends of the elbow, only the baffle 14 on the support frame 2 is required to be pulled simultaneously, and the second ratchet wheel 11 is driven by the baffle 14 to compress the spring 12, so that the first ratchet wheel 10 is separated from the second ratchet wheel 11, the connecting block 3 loses limitation, and the connecting block 3 and the supporting plate 4 are reset.