Clamp for machining special-shaped welded pipe mold

Abstract

The utility model relates to the technical field of welded pipe mold machining, in particular to a clamp for machining a special-shaped welded pipe mold, which comprises a base, supporting pieces are fixed at two ends of the top surface of the base, a carrier plate is fixed between the tops of the two supporting pieces, and a clamp body is arranged at the top of the carrier plate. The clamp body comprises a supporting ring connected with the carrying plate in a sliding mode, and the inner ring of the supporting ring is rotationally connected with a clamping ring. According to the device, air flow is conveyed to the connecting pipe through the air pump, the air flow is conveyed into the second sleeve from the annular cavity, the movable column in the second sleeve drives the rubber blocks to move in the direction of the welded pipe, and therefore the multiple rubber blocks extrude, clamp and fix the welded pipe; the movable columns at different positions can be selected to independently stretch out to clamp the welded pipe, the rubber blocks can be movably clamped to the ends of the movable columns through the spherical hinges, and the welded pipes with the sections in different shapes can be conveniently clamped and fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of welded pipe mould processing, in particular to a clamp for processing special-shaped welded pipe moulds. Background Art

[0002] The welded pipe mold, also known as the pipe making mold, is a commonly used mechanical processing equipment in the production of straight seam welded pipes. During the processing of welded pipes, the welded pipe mold needs to be fixed in position with a clamp in advance, and then the welded pipe is cut, rough-turned, drilled, heat-treated, ground, etc. For example, the patent for a wear-resistant and durable welded pipe mold with the authorization announcement number "CN218835838U" directly installs a clamp on the mold groove, and the clamp is set in an arc shape, which is convenient for clamping and fixing the welded pipe with a circular cross section;

[0003] However, processing workshops sometimes produce welded pipes with different cross-section shapes, such as welded pipes with polygonal cross-sections, welded pipes with semicircular cross-sections (refer to the instructions Figure 4 and Figure 5 In this case, the traditional arc-shaped clamp is not convenient for firmly clamping and fixing the special-shaped welded pipe, and most of the clamps cannot rotate and adjust the position of the welded pipe after clamping and fixing the welded pipe, resulting in the need to first turn the side of the welded pipe to be processed (opening or polishing) toward the processing station of the welded pipe mold before fixing the welded pipe, otherwise the welded pipe mold cannot be processed on the side of the welded pipe in the later stage. Utility Model Content

[0004] The utility model aims to provide a clamp for processing a special-shaped welded pipe mold to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A clamp for processing special-shaped welded pipe molds, comprising a base, support members are fixed at both ends of the top surface of the base, a carrier plate is fixed between the tops of the two support members, a clamp body is arranged on the top of the carrier plate, the clamp body comprises a support ring slidably connected to the carrier plate, the inner ring of the support ring is rotatably connected to a clamping ring, an annular chamber is provided inside the clamping ring, a plurality of connecting shafts are evenly rotatably connected to the outer ring of the support ring, a sleeve 1 is fixed to the inside of the connecting shaft extending into the annular chamber, a sleeve 2 is rotatably connected inside the sleeve 1, a moving column is slidably clamped inside the sleeve 2, a rubber block is arranged on the end of the moving column facing away from the sleeve 2, a bracket is fixed to the outside of the support ring, and a motor for driving the clamping ring to rotate is fixed to the top of the bracket.

[0007] Furthermore, the second sleeve is plugged and fixed with the clamping ring, the top of the second sleeve is provided with two symmetrically distributed second circular holes, and the outer side of the first sleeve is provided with two symmetrically distributed first circular holes.

[0008] Furthermore, one end of the movable column away from the second sleeve is fixedly connected to the rubber block or rotatably connected to the rubber block through a ball hinge, and a nut is fixed on the top end of the connecting shaft.

[0009] Furthermore, two symmetrically distributed sliding grooves are provided on the inner side wall of the second sleeve, and two symmetrically distributed sliding blocks are fixed on the outer side of the top of the movable column, and the sliding blocks are slidably connected with the sliding grooves at corresponding positions.

[0010] Furthermore, the outer ring of the clamping ring is fixedly connected to a connecting pipe which is connected and fixed with the annular chamber, and the top end of the connecting pipe is connected and fixed with the output end of an external air pump through a hose.

[0011] Furthermore, a gear ring is sleeved and fixed on the outer side of the clamping ring, and a gear meshing with the gear ring is fixed on the output end of the motor.

[0012] Furthermore, the support member comprises a square tube fixedly connected to the base, and a square column fixedly connected to the carrier plate is slidably connected inside the square tube.

[0013] Furthermore, the carrier plate is internally rotatably connected with a bidirectional screw rod which is screwed to the support ring, both ends of the bidirectional screw rod are fixed with rotating wheels, and the bracket is slidably connected to the outer side of the carrier plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. An air flow is delivered to the connecting pipe through an external air pump (a dual-purpose pump for suction and exhaust), and the air flow inside the annular chamber is delivered to the inside of the sleeve two through the circular hole one on the sleeve one and the circular hole two on the sleeve two. Under the driving action of the air pressure, the movable column moves with the rubber block toward the direction of the welded pipe. When the cross section of the welded pipe is an octagon, multiple movable columns all carry the rubber block to centrally squeeze the welded pipe to achieve clamping and fixing of the welded pipe. When the cross section of the welded pipe is semicircular or circular, the arc surface and the plane surface on the outer side of the welded pipe can also be squeezed, clamped and fixed by the extended movable column. In addition, when the cross section of the welded pipe is hexagonal, the rubber block can be pre-installed and fixed at the end of the movable column through a ball hinge. The rubber block on the ball hinge can be rotated and deflected in different directions at the end of the movable column, which is convenient for squeezing and fixing the side of the hexagonal welded pipe that is not flush with the rubber block. In addition, the ball hinge is used to rotate and connect the rubber block to adapt to the outer side of the welded pipe with different inclinations of the clamping position, thereby achieving clamping and fixing of the special-shaped welded pipe.

[0016] 2. By rotating the nut on the connecting shaft, the circular hole 1 on sleeve 1 is rotated to be no longer connected with the circular hole on sleeve 2. At this time, the airflow inside the annular chamber will not enter sleeve 2 to drive the movable column to move, so that sleeve 1 at the position where the movable column needs to be extended is connected with sleeve 2 for operation according to the position of the clamped weld pipe, and sleeve 1 at the other positions is not connected with sleeve 2 and does not work, which is convenient for controlling the spatial range of clamping and fixing the weld pipe. The motor drives the gear ring to rotate the support ring and rotates the clamped and fixed weld pipe, which is convenient for rotating the side of the weld pipe to be processed to the processing station of the weld pipe mold.

[0017] 3. The electric push rod can move the clamp body on the carrier plate to different positions and heights, so that the welded pipe on the carrier plate can be moved to a position flush with the processing position of the welded pipe mold. By rotating the bidirectional screw rod, the two clamp bodies can move closer to each other or move away from each other, so that the clamp body can be clamped and fixed at both ends of the middle of the welded pipe, which is convenient for clamping and fixing welded pipes of different lengths and sizes. The gas source pushes multiple moving columns to extend and squeeze the welded pipe at the same time, eliminating the need for manual fixing of the welded pipe by adjusting the bolts, which is efficient and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the base, support, carrier plate, and bidirectional screw structure in the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the fixture body, bracket, and motor in the utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the clamping ring in the utility model;

[0022] Figure 5 This is a schematic diagram of the external structure of the clamping ring in the utility model;

[0023] Figure 6 This is a schematic diagram of the three-dimensional structure of the sleeve 1 and the sleeve 2 in the utility model;

[0024] Figure 7 The utility model is a schematic diagram of a structure in which a movable rubber block is fixed by a ball hinge.

[0025] In the figure: 100, base; 110, support member; 120, electric push rod; 200, carrier plate; 210, bidirectional screw; 300, fixture body; 310, support ring; 320, clamping ring; 321, annular chamber; 322, connecting pipe; 323, gear ring; 330, connecting shaft; 340, sleeve one; 341, circular hole one; 350, sleeve two; 351, circular hole two; 360, moving column; 361, rubber block; 400, bracket; 410, motor; 411, gear. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Embodiment 1

[0028] See also Figure 1-7 In the embodiment of the utility model, a clamp for processing a special-shaped welded pipe mold includes a base 100, and support members 110 are fixed at both ends of the top surface of the base 100. A carrier plate 200 is fixed between the tops of the two support members 110. A clamp body 300 is arranged on the top of the carrier plate 200. The clamp body 300 includes a support ring 310 slidably connected to the carrier plate 200. The inner ring of the support ring 310 is rotatably connected to a clamping ring 320. The inner ring of the clamping ring 320 is provided with an annular chamber 321. The support ring 310 is provided with a support ring 320. The outer ring of 10 is evenly rotatably connected with a plurality of connecting shafts 330, the connecting shafts 330 extend to the inside of the annular chamber 321 where a sleeve 1 340 is fixed, the inside of the sleeve 1 340 is rotatably connected with a sleeve 2 350, the inside of the sleeve 2 350 is slidably clamped with a moving column 360, a rubber block 361 is arranged at one end of the moving column 360 away from the sleeve 2 350, a bracket 400 is fixed to the outside of the support ring 310, and a motor 410 for driving the clamping ring 320 to rotate is fixed to the top of the bracket 400.

[0029] Specifically, an air pump is used to deliver air to the connecting pipe 322, and the air is delivered from the annular chamber 321 to the inside of the second sleeve 350. The movable column 360 inside the second sleeve 350 moves toward the direction of the welding pipe with the rubber block 361, so that the multiple rubber blocks 361 squeeze and clamp the welding pipe. According to the different shapes of the cross-section of the welding pipe, the movable columns 360 at different positions can be selected to extend and clamp the welding pipe separately. The rubber block 361 can be movably connected to the end of the movable column 360 through a ball hinge, which is convenient for clamping and fixing welding pipes with different cross-sections. The motor 410 can rotate the clamped welding pipe inside the support ring 310, which is convenient for exposing the side of the welding pipe to be processed by the mold, thereby improving the efficiency of welding pipe processing.

[0030] like Figure 6 As shown, in this embodiment, sleeve 2 350 is plugged and fixed with the clamping ring 320, and two symmetrically distributed circular holes 351 are formed through the top of sleeve 2 350, and two symmetrically distributed circular holes 341 are formed through the outer side of sleeve 1 340. When circular hole 1 341 is connected with circular hole 2 351, the movable column 360 inside sleeve 2 350 can extend out to extrude the weld pipe.

[0031] like Figure 6 and Figure 7 As shown, in the present embodiment, one end of the movable column 360 which faces away from the sleeve 2 350 is fixedly connected to the rubber block 361 or is rotatably connected to the rubber block 361 through a ball hinge. A nut is fixed to the top of the connecting shaft 330. The rubber block 361 itself has a soft property, which is convenient for flexibly clamping and fixing the welded pipe. When the rubber block 361 is fixed on the movable column 360, it can clamp commonly used welded pipes with cross-sections of quadrilateral, octagon, circle, etc. When the rubber block 361 is hinged on the movable column 360, it can clamp and fix welded pipes with cross-sections of triangular, pentagonal, hexagonal, etc.

[0032] like Figure 6 As shown, in this embodiment, two symmetrically distributed sliding grooves are provided on the inner side wall of the second sleeve 350, and two symmetrically distributed sliders are fixed to the outer side of the top of the movable column 360. The sliders are slidably connected to the corresponding sliding grooves, so that the movable column 360 will not separate from the second sleeve 350.

[0033] like Figure 3 and Figure 4 As shown, in this embodiment, the outer ring of the clamping ring 320 is fixedly connected to a connecting pipe 322 which is connected and fixed to the annular chamber 321, the top of the connecting pipe 322 is connected and fixed to the output end of an external air pump through a hose, the outer side of the clamping ring 320 is sleeved and fixed with a gear ring 323, and the output end of the motor 410 is fixed with a gear 411 which meshes and drives with the gear ring 323.

[0034] In this embodiment, the hose is convenient for satisfying the spatial range requirement when the clamping ring 320 rotates with the connecting tube 322 to adjust the position of the welding pipe. In addition, the motor 410 rotates the clamping ring 320 half a circle forward and backward to adjust the position of the welding pipe to prevent the clamping ring 320 from rotating in a certain direction all the time and causing the hose to be entangled. Among them, the air pump connected to the hose is arranged above the clamping ring 320, and the motor 410 rotates the gear 411 so that the gear 411 rotates with the gear ring 323.

[0035] When implementing it, refer to the instructions. Figure 5 The working principle is explained by taking the example of clamping and fixing a welded pipe with a semicircular cross section. The nut on the connecting shaft 330 is rotated in advance to make the circular hole 1 341 on the sleeve 1 340 and the circular hole 2 351 on the sleeve 2 350 in a connected state. At this time, it is only necessary to make the multiple sleeves 1 340 arranged on the arc side of the welded pipe connected with the sleeve 2 350, and the sleeve 1 340 arranged on the flat side of the bottom of the welded pipe connected with the sleeve 2 350, and then the external air pump supplies air to the connecting pipe 322 through the hose to the annular chamber 321, and the air flow passes through the sleeve 1 340. The circular hole 1 341 on 40 and the circular hole 2 351 on the sleeve 2 350 are transported to the inside of the sleeve 2 350, and the movable column 360 moves with the rubber block 361 toward the welding pipe under the push of air pressure, so that the welding pipe is clamped and fixed. When the position of the welding pipe needs to be replaced, there is no need to clamp and fix the welding pipe again. It only needs to use the motor 410 to rotate the gear 411, and the gear 411 rotates the gear ring 323 to rotate the welding pipe inside the clamping ring 320 to adjust the position, so as to facilitate the welding pipe mold to perform mold processing on it.

[0036] Embodiment 2

[0037] On the basis of the first embodiment, in order to adjust the clamp body 300 to different position heights, and enable the clamp body 300 to clamp and fix welding pipes of different lengths.

[0038] like Figure 1 and Figure 2 As shown, in this embodiment, the support member 110 includes a square tube fixedly connected to the base 100, and the interior of the square tube is slidably connected to a square column fixedly connected to the carrier plate 200, and an electric push rod 120 for driving the carrier plate 200 to move up and down is fixed to the bottom surface of the base 100, and the interior of the carrier plate 200 is rotatably connected to a bidirectional screw rod 210 that is screwed together with a support ring 310, and both ends of the bidirectional screw rod 210 are fixed with rotating wheels, and the bracket 400 is slidably connected to the outer side of the carrier plate 200.

[0039] In this embodiment, the electric push rod 120 carries the carrier plate 200 to stably adjust the height position of the welding pipe on the carrier plate 200, which is convenient for the contact processing between the welding pipe and the welding pipe mold station. The bidirectional screw 210 rotates forward and reversely so that the two support rings 310 can move closer to each other or move away from each other with the clamp body 300, which is convenient for clamping and fixing welding pipes of different lengths.

[0040] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0041] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fixture for processing a special-shaped welded pipe mold, comprising a base, characterized in that: Support members are fixed at both ends of the top surface of the base, a carrier plate is fixed between the tops of the two support members, a clamp body is arranged on the top of the carrier plate, the clamp body comprises a support ring slidably connected to the carrier plate, the inner ring of the support ring is rotatably connected to a clamping ring, an annular chamber is provided inside the clamping ring, a plurality of connecting shafts are evenly rotatably connected to the outer ring of the support ring, a sleeve 1 is fixed to the inside of the connecting shaft extending to the annular chamber, a sleeve 2 is rotatably connected inside the sleeve 1, a moving column is slidably clamped inside the sleeve 2, a rubber block is arranged on the end of the moving column facing away from the sleeve 2, a bracket is fixed to the outside of the support ring, and a motor for driving the clamping ring to rotate is fixed to the top of the bracket.

2. A fixture for processing a special-shaped welded pipe mold according to claim 1, characterized in that: The second sleeve is plugged and fixed with the clamping ring. The top of the second sleeve is provided with two symmetrically distributed second circular holes, and the outer side of the first sleeve is provided with two symmetrically distributed first circular holes.

3. The fixture for processing a special-shaped welded pipe mold according to claim 1, characterized in that: One end of the movable column away from the second sleeve is fixedly connected to the rubber block or rotatably connected to the rubber block through a ball hinge, and a nut is fixed on the top end of the connecting shaft.

4. The fixture for processing a special-shaped welded pipe mold according to claim 1, characterized in that: The inner side wall of the sleeve 2 is provided with two symmetrically distributed sliding grooves, and the outer side of the top of the movable column is fixed with two symmetrically distributed sliding blocks, and the sliding blocks are slidably connected with the sliding grooves at corresponding positions.

5. The fixture for processing a special-shaped welded pipe mold according to claim 1, characterized in that: The outer ring of the clamping ring is fixedly connected with a connecting pipe which is connected and fixed with the annular chamber, and the top end of the connecting pipe is connected and fixed with the output end of an external air pump through a hose.

6. The fixture for processing a special-shaped welded pipe mold according to claim 1, characterized in that: A gear ring is sleeved and fixed on the outer side of the clamping ring, and a gear meshing with the gear ring is fixed on the output end of the motor.

7. The fixture for processing a special-shaped welded pipe mold according to claim 1, characterized in that: The support member comprises a square tube fixedly connected to the base, a square column fixedly connected to the carrier plate is slidably connected inside the square tube, and an electric push rod for driving the carrier plate to move up and down is fixed on the bottom surface of the base.

8. The fixture for processing a special-shaped welded pipe mold according to claim 1, characterized in that: The inside of the carrier plate is rotatably connected with a bidirectional screw rod which is screwed with the support ring, both ends of the bidirectional screw rod are fixed with rotating wheels, and the bracket is slidably connected with the outer side of the carrier plate.

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