A pressure pipe clamping tool

Abstract

This application discloses a pressure tube clamping fixture, including a clamping fixture and a supporting fixture. The clamping fixture includes a fixed clamping plate, and the supporting fixture includes a crossbeam. Support plates are provided at the bottom of both ends of the crossbeam. A support bar is hinged to the center of the support plate. A second hydraulic cylinder is assembled at the center of the top of the crossbeam. A connecting block is fixed to the movable end of the second hydraulic cylinder. Control bars are hinged to the inside of both sides of the connecting block. A support slider is provided on the outside of one end of the control bar. A drive rod is fixed to the bottom end of the support slider. The key technical point is that by controlling the connecting block, one end of the two control bars moves to the bottom, so that the other end pushes the support slider to slide inside the third slide groove. The drive rod and the second pin drive the support plate to rotate around the hinge point between the support bar and the support plate, so that the other end supports the pressure tube on the side below. This helps to prevent the pressure tube from sliding out between the four fixed clamping plates during the clamping and transfer process of the clamping fixture.

Description

Technical Field

[0001] This invention belongs to the field of pressure pipe manufacturing and processing technology, specifically a pressure pipe clamping tool. Background Technology

[0002] Pressure pipes, used for transporting gases, liquids, and other fluids, can be made of different materials depending on the specific application. With the widespread use of automation technology, systems that power actuators using hydraulic or pneumatic methods are prevalent. In these systems, pressure pipes are primarily pressure-resistant flexible hoses, ensuring flexibility and the ability to change angles at will while transporting fluid media. Pressure steel pipes are also common; their internal structure is a closed environment used to transport extremely high-pressure water flows, the intensity of which can be controlled by opening and closing sluice gates or barriers.

[0003] With the application of mechanical automation in various fields replacing traditional manual production, the problem of repetitive tasks has been solved, which can greatly improve production efficiency and reduce production costs. In the production process of pressure tubes using robotic arms, manual operation can be replaced by assembling components on the outside of the pressure tube. After the assembly of the target component and the pressure tube is completed, the robotic arm is used to transfer the pressure tube to the next process, awaiting subsequent processing.

[0004] When existing robotic arms grip pressure tubes and transfer them to different work areas, they need to use fixtures that conform to the shape of the pressure tubes for fixation. However, due to the specificity of these fixtures, when applied to pressure tubes of different diameters, problems such as loose gripping or insufficient gripping surface can easily occur, which is not conducive to ensuring the rapid transfer of pressure tubes between different processes. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies where robotic arms use tooling specifically designed to match the shape of pressure tubes when gripping them, leading to issues like loose gripping or insufficient gripping surface when applied to pressure tubes of different diameters, this application provides a pressure tube gripping tooling. This tooling involves extending the movable end of a second hydraulic cylinder from the inside of the fixed end, using a connecting block to move one end of two control bars downwards, thus switching the inclined control bars to a horizontal state. The other end of the control bars then pushes a support slider to slide inside a third groove. A second pin connected between the support plate and the drive rod rotates the support plate around its hinge point with the support bars, causing its other end to be supported below the pressure tube, which is held and fixed by four fixed clamping plates. This effectively prevents the pressure tube from sliding out between the four fixed clamping plates during the robotic arm's gripping process.

[0006] The technical solution adopted by the embodiments of this application to solve its technical problem is:

[0007] A pressure tube clamping fixture includes a clamping fixture and a supporting fixture, wherein the clamping fixture clamps the pressure tube from both sides.

[0008] The support fixture forms a support on the lower side of the pressure pipe;

[0009] The supporting fixture is located inside the clamping fixture. The moving part moves from the center to both sides. There are two pressure tubes, which are respectively located on the top of both sides of the clamping fixture.

[0010] Preferably, the clamping fixture includes a main frame, which consists of a main rod and two support rods. The two support rods and the main rod are perpendicular to each other. Both ends of the two support rods of the main frame are fitted with a first hydraulic cylinder, and the first hydraulic cylinder has multiple opposing movable ends inside.

[0011] Preferably, a base plate is assembled and connected to the movable end of the first hydraulic cylinder, a fixed clamping plate is assembled and connected to one side of the base plate, the pressure pipe is located between two fixed clamping plates on the same first hydraulic cylinder, an adapter is assembled and connected to one end of the main rod of the tooling frame, and a robotic arm is assembled and connected to the top of the adapter.

[0012] Preferably, the support fixture includes a crossbeam, with support plates at the bottom of both ends of the crossbeam, a support bar hinged to the center of the support plate, and one end of the support plate supported on the lower side of the pressure pipe.

[0013] Preferably, a second hydraulic cylinder is assembled and connected at the center of the top of the cross frame. The movable end of the second hydraulic cylinder extends out from the inside of the cross frame and is fixedly connected to a connecting block. Control bars are hinged to the inside of both sides of the connecting block. A support slider is provided on the outside of one end of the control bar. A drive rod is fixedly connected to the bottom end of the support slider.

[0014] Preferably, a first pin is provided inside one end of the control bar, and the first pin is pin-connected to the inside of the support slider. A third groove is machined at the center of the crossbar, and the two support sliders are slidably connected to the inside of the two sides of the third groove.

[0015] Preferably, the interior of both sides of the crossbar is machined with a first sliding groove, and the two ends of the two first pins are slidably connected to the interior of the two first sliding grooves respectively.

[0016] Preferably, the bottom of the drive rod is pin-connected to a second pin, one end of the support plate is machined with a second groove, and both ends of the second pin are slidably connected inside the second groove.

[0017] Preferably, connecting columns are fixedly connected to the bottom surfaces of both ends of the crossbeam, and fixing strips are assembled and connected to one side of the two first hydraulic cylinders on one support rod of the main tooling frame. The two fixing strips are located between the four first hydraulic cylinders. The two connecting columns are respectively plugged into the interior of one end of the fixing strip. One end of the support strip is plugged into the interior of the connecting column and supported at the bottom of one end of the fixing strip, and this end is fixed to the connecting column by bolts.

[0018] Preferably, an assembly table is provided on one side of the robotic arm, and a conveyor is provided on the other side of the robotic arm. The assembly table includes two mutually perpendicular parts, the processing area on the assembly table faces the robotic arm, and the two pressure tubes are placed on the top of the conveyor.

[0019] In summary, the present invention has at least one of the following beneficial technical effects:

[0020] Firstly, this invention controls the operation of the first hydraulic cylinder, causing its movable end to extend from the inside of the fixed end. When the pressure tube is located between the two fixed clamping plates at the bottom of the first hydraulic cylinder, its movable end retracts into the inside of the fixed end. The two base plates then drive the two fixed clamping plates to move closer to each other, thereby clamping the pressure tube. This is not affected by the diameter of the pressure tube and is more flexible in use.

[0021] Secondly, this invention extends the movable end of the second hydraulic cylinder from the inside of the fixed end, and uses the connecting block to drive one end of the two control bars to move to the bottom, thereby switching the inclined control bars to a horizontal state. The other end of the control bars pushes the support slider to slide inside the third slide groove. The second pin connected between the support plate and the drive rod drives the support plate to rotate around its hinge point with the support bar, so that the other end of the support plate is supported on the side below the pressure tube which is held and fixed by the four fixed clamping plates. This helps to prevent the pressure tube from sliding out between the four fixed clamping plates during the movement of the robotic arm holding the pressure tube by the clamping fixture, resulting in high stability. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of the working position of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the connection structure between the clamping fixture and the supporting fixture of the present invention and the pressure tube;

[0025] Figure 4 This is a schematic diagram of the clamping fixture of the present invention;

[0026] Figure 5 This is a schematic diagram of the connection structure between the clamping fixture and the supporting fixture of the present invention;

[0027] Figure 6 This is the present invention. Figure 5 Enlarged view of the structure at point A in the middle;

[0028] Figure 7 This is the present invention. Figure 5 Enlarged view of the structure at point B;

[0029] Figure 8 This is a schematic diagram of the supporting tooling structure of the present invention;

[0030] Figure 9 This is the present invention. Figure 8 Enlarged view of the structure at point C.

[0031] Figure label:

[0032] 1. Assembly table; 2. Robotic arm; 3. Pressure pipe; 4. Conveyor frame; 5. Clamping fixture; 501. Adapter; 502. Main fixture frame; 503. Base plate; 504. Fixing clamp; 505. First hydraulic cylinder; 506. Fixing frame bar; 6. Support fixture; 601. Cross frame; 602. Support plate; 603. Connecting column; 604. Support bar; 605. Hydraulic cylinder; 606. Control bar; 607. Drive rod; 608. First slide groove; 609. First pin; 610. Connecting block; 611. Support slider; 612. Second slide groove; 613. Second pin; 614. Third slide groove. Detailed Implementation

[0033] Example 1:

[0034] A pressure pipe clamping tool, such as Figures 1-4 As shown, it includes a clamping fixture 5 and a supporting fixture 6. The supporting fixture 6 is located inside the clamping fixture 5. The moving part moves from the center to both sides. There are two pressure tubes 3, which are respectively located on the top of both sides of the clamping fixture 5.

[0035] The clamping fixture 5 includes a main fixture frame 502, which consists of a main rod and two support rods. The two support rods and the main rod are perpendicular to each other. The two ends of the two support rods of the main fixture frame 502 are equipped with first hydraulic cylinders 505. One end of the main rod of the main fixture frame 502 is equipped with an adapter 501. The top of the adapter 501 is equipped with a robotic arm 2. An assembly table 1 is provided on one side of the robotic arm 2, and a conveyor frame 4 is provided on the other side of the robotic arm 2. The assembly table 1 includes two perpendicular parts. The processing area on the assembly table 1 faces the robotic arm 2. By placing the robotic arm 2 between the assembly table 1 and the conveyor frame 4, and by using the clamping fixture 5 to transfer the conveyor frame 4 inside the assembly table 1, the production and processing efficiency can be improved.

[0036] Meanwhile, during the production and processing stage of the conveyor frame 4, the robotic arm 2 can use the gripping fixture 5 to grab and place the pressure tube 3 from the top of the conveyor frame 4, which is conducive to the formation of an automated production line without the need for human intervention.

[0037] Secondly, the first hydraulic cylinder 505 has multiple opposing movable ends inside. A base plate 503 is assembled and connected to the movable end of the first hydraulic cylinder 505. A fixed clamping plate 504 is assembled and connected to one side of the base plate 503. The pressure pipe 3 is located between the two fixed clamping plates 504 on the same first hydraulic cylinder 505. When the first hydraulic cylinder 505 is working, the clamping fixture 5 can clamp the pressure pipe 3 from both sides.

[0038] This invention provides a pressure pipe clamping fixture by mounting a robotic arm 2 between an assembly table 1 and a conveyor frame 4, with the working area of ​​the assembly table 1 facing the robotic arm 2. After the clamping fixture 5 is connected to the robotic arm 2 using an adapter 501, the robotic arm 2 can control the movement of the clamping fixture 5 inside the assembly table 1 and the top of the conveyor frame 4. When the first hydraulic cylinder 505 operates, its movable end extends from the inside of the fixed end, so that the pressure pipe 3 is located between two fixed clamping plates 504 at the bottom of the first hydraulic cylinder 505. At this time, its movable end retracts into the inside of the fixed end, and the two fixed clamping plates 504 move closer to each other through the two base plates 503, thereby clamping the pressure pipe 3. During this process, regardless of the diameter of the pressure pipe 3, both fixed clamping plates 504 can clamp and fix the target pressure pipe 3, making it more flexible to use.

[0039] Example 2:

[0040] Based on Example 1, such as Figures 5-9 As shown, this embodiment is an auxiliary structure support fixture 6 for clamping fixture 5. The support fixture 6 includes a crossbeam 601. Support plates 602 are provided at the bottom of both ends of the crossbeam 601. Support bars 604 are hinged to the center of the support plates 602. A second hydraulic cylinder 605 is assembled and connected at the center of the top of the crossbeam 601. The movable end of the second hydraulic cylinder 605 passes through the inside of the crossbeam 601 and is fixedly connected to a connecting block 610. Control bars 606 are hinged to the inside of both sides of the connecting block 610. A support slider 611 is provided on the outside of one end of the control bar 606. A drive rod 607 is fixedly connected to the bottom end of the support slider 611.

[0041] The control bar 606 has a first pin 609 inside one end, which is pin-connected to the inside of the support slider 611. The crossbar 601 has a third groove 614 machined at its center. The bottom of the drive rod 607 is pin-connected to a second pin 613. When the movable end of the second hydraulic cylinder 605 extends from the inside of the fixed end, the control bar 606 can push the two support sliders 611 to slide on both sides of the third groove 614. The drive rod 607 fixed at its bottom controls one end of the support plate 602, causing the support plate 602 to rotate around the hinge point between itself and the support bar 604. This allows one end of the support plate 602 to be supported on the side of the pressure tube 3, thus cooperating with the four fixed clamping plates 504 that hold the pressure tube 3.

[0042] Secondly, in order to limit the movement of the control bar 606 from sliding out of the third slide groove 614 when the movable end of the second hydraulic cylinder 605 retracts into the fixed end, first slide grooves 608 are machined on both sides of the crossbar 601. The two ends of the first pin 609, which passes through the control bar 606 and is pinned to the inside of the support slider 611, are slidably connected to the inside of the two first slide grooves 608 respectively. By using the cooperation between the first pin 609 and the first slide groove 608, the range of motion of the support slider 611 inside the third slide groove 614 is limited.

[0043] Furthermore, in order to ensure the lateral movement of the drive rod 607, one end of the support plate 602 can be pulled to make the support plate 602 rotate around its hinge point with the support bar 604. A second groove 612 is machined at one end of the support plate 602 so that the two ends of the second pin 613 are slidably connected inside the second groove 612, providing a clearance for the drive rod 607 to move the support plate 602 during the movement.

[0044] Furthermore, in order to combine the clamping fixture 5 and the supporting fixture 6 together, connecting posts 603 are fixedly connected to the bottom surfaces at both ends of the cross frame 601, and fixing brackets 506 are assembled and connected to one side of the two first hydraulic cylinders 505 on one support rod of the main frame 502. The two fixing brackets 506 are located between the four first hydraulic cylinders 505. When the two connecting posts 603 are plugged into the inside of one end of the fixing bracket 506, the connecting posts 603 and the fixing brackets 506 can be initially connected. When one end of the support bar 604 is plugged into the inside of the connecting post 603, and one end of the support bar 604 is supported on the bottom of one end of the fixing bracket 506, the connecting posts 603 can be prevented from detaching from the inside of the fixing bracket 506, thereby fixing the fixing bracket 506 and the cross frame 601.

[0045] Meanwhile, after the support bar 604 is fixed to the connecting column 603 with bolts, one end of the support bar 604 can be stably inserted into the interior of the connecting column 603, while the other end stably supports the support plate 602 to rotate around the hinge point between it and the support bar 604.

[0046] This invention provides a pressure pipe clamping fixture. The movable end of a second hydraulic cylinder 605 extends from the inside of its fixed end. A connecting block 610 drives one end of two control bars 606 to move downwards, thus switching the inclined control bars 606 to a horizontal state. The other end of the control bars pushes a support slider 611 to slide within a third groove 614. During the sliding process, the two ends of a first pin 609, pinned inside the support slider 611, are slidably connected to the two first grooves 608, controlling the sliding range of the support slider 611. During the sliding of the support slider 611, a second pin 613, connected between a support plate 602 and a drive rod 607, drives the support plate 602 to rotate around its hinge point with the support bar 604. This causes the other end of the support plate 602 to be supported below the pressure pipe 3, which is clamped and fixed by four fixed clamping plates 504. This helps prevent the pressure pipe 3 from sliding out between the four fixed clamping plates 504 during the movement of the robotic arm 2 while the clamping fixture 5 is holding the pressure pipe 3, resulting in higher safety and better stability.

[0047] It should be noted that during use, the robotic arm 2 first moves the gripping fixture 5 and the supporting fixture 6 directly above the target area. Then, it controls the gripping fixture 5 to move downwards, so that the two pressure tubes 3 to be gripped fall directly below the four first hydraulic cylinders 505. When the movable ends of the first hydraulic cylinders 505 extend simultaneously, the fixed clamping plates 504 move away from each other using the base plate 503, so that the pressure tubes 3 are positioned between the two fixed clamping plates 504. When the movable ends of the first hydraulic cylinders 505 retract, the two fixed clamping plates 504 clamp and fix the pressure tubes 3. After completing this gripping operation, the robotic arm 2 controls the first hydraulic cylinder 505 to move downwards, so that the two fixed clamping plates 504 fix the pressure tubes 3. The second hydraulic cylinder 605 operates, causing its movable end to extend from the inside of the fixed end. The connecting block 610 drives one end of the two control bars 606 to move to the bottom, causing the other end to push the support slider 611 to slide inside the third slide groove 614. The second pin 613 connected between the support plate 602 and the drive rod 607 drives the support plate 602 to rotate around its hinge point with the support bar 604, so that its other end is supported on the side below the pressure tube 3 which is clamped and fixed by the four fixed clamping plates 504. This can completely fix the pressure tube 3 and prevent the pressure tube 3 from sliding out between the four fixed clamping plates 504.

[0048] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A pressure pipe clamping tool, characterized in that, include: The clamping fixture (5) clamps the pressure tube (3) from both sides; Support fixture (6) forms a support on the side below the pressure tube (3); The supporting fixture (6) is located inside the clamping fixture (5), and the moving part moves from the center to both sides. There are two pressure tubes (3), and the two pressure tubes (3) are respectively located on the top of both sides of the clamping fixture (5). The clamping fixture (5) includes a fixture main frame (502), which is composed of a main rod and two support rods. The two support rods and the main rod are perpendicular to each other. The two support rods of the fixture main frame (502) are assembled and connected to the two ends of the two support rods. The first hydraulic cylinder (505) has multiple movable ends that move in opposite directions inside. A base plate (503) is assembled and connected to the movable end of the first hydraulic cylinder (505). A fixed clamping plate (504) is assembled and connected to one side of the base plate (503). The pressure pipe (3) is located between the two fixed clamping plates (504) on the same first hydraulic cylinder (505). An adapter (501) is assembled and connected to one end of the main rod of the tooling frame (502). A robotic arm (2) is assembled and connected to the top of the adapter (501). The support fixture (6) includes a crossbeam (601), and support plates (602) are provided at the bottom of both ends of the crossbeam (601). The support plate (602) is hinged to the center of a support bar (604), and one end of the support plate (602) is supported on the side below the pressure tube (3). A second hydraulic cylinder (605) is assembled and connected at the center of the top of the cross frame (601). The movable end of the second hydraulic cylinder (605) passes through the inside of the cross frame (601) and is fixedly connected to a connecting block (610). Control bars (606) are hinged to the inside of both sides of the connecting block (610). A support slider (611) is provided on the outside of one end of the control bar (606). A drive rod (607) is fixedly connected to the bottom end of the support slider (611). The control bar (606) has a first pin (609) inside one end. The first pin (609) is pin-connected to the inside of the support slider (611). The crossbar (601) has a third groove (614) machined at the center. The two support sliders (611) are slidably connected to the inside of the third groove (614) on both sides. The crossbar (601) has first grooves (608) machined inside both sides, and the two ends of the two first pins (609) are slidably connected to the inside of the two first grooves (608); The bottom of the drive rod (607) is pin-connected to a second pin (613), and one end of the support plate (602) is machined with a second groove (612). The two ends of the second pin (613) are slidably connected to the inside of the second groove (612). The bottom surfaces at both ends of the crossbeam (601) are fixedly connected to connecting columns (603). On one side of the two first hydraulic cylinders (505) located on a support rod of the main tooling frame (502), a fixing frame strip (506) is assembled and connected. The two fixing frame strips (506) are located between the four first hydraulic cylinders (505). The two connecting columns (603) are respectively plugged into the inside of one end of the fixing frame strip (506). One end of the support strip (604) is plugged into the inside of the connecting column (603) and supported at the bottom of one end of the fixing frame strip (506), and this end is fixed to the connecting column (603) by bolts.

2. The pressure pipe clamping fixture as described in claim 1, characterized in that: An assembly table (1) is provided on one side of the robotic arm (2), and a conveyor frame (4) is provided on the other side of the robotic arm (2). The assembly table (1) includes two mutually perpendicular parts. The processing area on the assembly table (1) faces the robotic arm (2), and the two pressure tubes (3) are placed on the top of the conveyor frame (4).

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