A universal joint and a method of measuring the rotation

Abstract

The application discloses a kind of by any live joint measuring rotation device, including the positioning plate of vertical arrangement, is equipped with rotating member disc in the side of positioning plate;The rotating member disc is horizontally arranged, and the outer periphery is uniformly provided with several can be received by any clamping position;The positioning plate below the rotating member disc is equipped with lifting mechanism;Lifting mechanism is fixedly connected with a measuring rotation motor on it;The axial direction of measuring rotation motor is fixedly connected with lifting shaft;The positioning plate above the rotating member disc is equipped with pressing mechanism;Pressing mechanism is downwardly rotatably connected with pressing shaft;Pressing shaft and lifting shaft are opposite to each other;The clamping position of rotating member disc can be rotated to between pressing shaft and lifting shaft respectively;Pressing shaft is equipped with inductive block;The measuring rotation device is equipped with measuring rotation sensor matched with inductive block for use.The application has higher degree of automation and detection efficiency, and simple structure, easy and stable to use and the like characteristics.

Description

Technical Field

[0001] This invention relates to a rotation measuring device and a rotation measuring method, and more particularly to a rotation measuring device and a rotation measuring method for a random hinge. Background Technology

[0002] A union, also known as a swivel or union fitting, is a common pipe fitting that allows for easy installation and disassembly. Due to its simple, quick, convenient, and effective connection of pipes, unions are widely used. A union consists of three parts: a nut, a swivel, and a screw thread. Although the components are simple, the manufacturing process of a union involves almost all the steps involved in pipe fitting forming. In the parts stage, the nut, swivel, and screw thread are machined separately. In the assembly stage, the machined swivel is placed into the nut, and only after confirming that the swivel can rotate freely within the nut can the screw thread be screwed in to complete the assembly of a complete union. Because of the large volume of unions used, the production quantity is generally also large. However, currently, the process of confirming that the swivel can rotate freely within the nut is manually checked. To ensure the quality of the unions, workers need to personally check the rotation of each swivel within the nut for each union, which not only leads to high labor intensity for workers but also low inspection efficiency. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a flexible joint rotation measuring device and method that can quickly detect the rotation of joints.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: a flexible joint rotation measuring device, comprising a vertically arranged positioning plate, a rotating disk on one side of the positioning plate; the rotating disk is horizontally arranged, with a plurality of slots evenly distributed on its outer periphery to receive any joint; a lifting mechanism is provided on the positioning plate below the rotating disk; a rotation measuring motor is fixedly connected to the lifting mechanism; a lifting shaft is fixedly connected to the axial direction of the rotation measuring motor; a pressing mechanism is provided on the positioning plate above the rotating disk; the pressing mechanism is rotatably connected to a pressing shaft; the pressing shaft and the lifting shaft are vertically opposite each other; the slots of the rotating disk can be rotated between the pressing shaft and the lifting shaft respectively; a sensing block is provided on the pressing shaft; the rotation measuring device is provided with a rotation measuring sensor used in conjunction with the sensing block.

[0005] The aforementioned flexible joint measuring device has a self-aligning mechanism on the lower pressure shaft.

[0006] In the aforementioned flexible joint measuring device, the lower end of the pressure shaft is a conical structure that can mate with the inner circle of the joint.

[0007] In the aforementioned flexible joint measuring device, the upper end of the rising shaft has a slotted structure that can be engaged with the outer side of the joint.

[0008] The method of the present invention, using the above-mentioned rotation measuring device, comprises the following steps:

[0009] 1) Rotate the rotating disc so that the two ends of the joint to be tested are respectively aligned with the lower pressing shaft and the rising shaft;

[0010] 2) The lifting mechanism drives the measuring motor to move upward, and the lifting mechanism stops working when it moves to the top; the lifting shaft located on the measuring motor shaft lifts the movable joint and makes the movable joint and the nut have a gap;

[0011] 3) The pressing mechanism drives the pressing shaft to press down, and the pressing mechanism stops working when it moves to the bottom; the lower end of the pressing shaft is connected to the inner circle of the joint and clamps the joint with the rising shaft;

[0012] 4) Turn on the rotation measuring motor, which drives the rising shaft to rotate; the rotating rising shaft drives the hinge and the lower pressure shaft to rotate, and the sensing block located on the lower pressure shaft rotates together with the lower pressure shaft; if the rotation measuring sensor detects a signal, it is determined that the hinge is rotating inside the nut; if the rotation measuring sensor does not detect a signal, it is determined that the hinge cannot rotate normally inside the nut.

[0013] 5) After a joint is tested, the measuring motor is stopped; the rising shaft is reset under the drive of the rising mechanism, and the pressing shaft is reset under the drive of the pressing mechanism; the reset rising shaft and pressing shaft release the joint that has been tested.

[0014] 6) Rotate the rotating disc again so that the two ends of the next hinge to be tested are vertically aligned with the downward pressing shaft and the upward lifting shaft, respectively; then repeat steps 2)-5 above.

[0015] The beneficial effects of the above technical solution are as follows: This invention sets up opposing downward pressing shafts and upward pressing shafts above and below the locking position. The upward pressing shaft faces the lower end of the hinge and moves up and down via a lifting mechanism, rotating via a rotation measuring motor. The downward pressing shaft faces the upper end of the hinge, rotatably connected within a horizontal plate, and is pressed down by a pressing mechanism. Thus, driven by the lifting mechanism and the pressing structure, the upward pressing shaft first lifts the hinge, and then the downward pressing shaft holds it in place, allowing the downward pressing shaft to rotate along with the upward pressing shaft. Furthermore, a sensing block is mounted on the downward pressing shaft, and a rotation measuring sensor is installed to match the sensing block. Therefore, by detecting whether the sensing block passes the rotation measuring sensor, it is possible to detect whether the hinge is rotating within the nut. This invention changes the previous method of manually rotating the hinge for detection, effectively improving detection efficiency. This invention features a high degree of automation and detection efficiency, simple structure, and convenient and stable use.

[0016] In addition, the present invention also provides a centering mechanism on the lower pressing shaft to stabilize the rotation of the lower pressing shaft, thereby enhancing the stability when the rotation measurement sensor detects the induction block. The lower end of the lower pressing shaft is designed as a conical structure that can be docked with the inner circle of the swivel joint, making the rotation of the lower pressing shaft more stable when the swivel joint drives it. The upper end of the rising shaft is designed as a flat bayonet structure to be clamped outside the swivel joint, making the rotation of the rising shaft more stable when it drives the swivel joint. The present invention also provides a rotation measurement method used in conjunction with the rotation measurement device, enabling workers to use the rotation measurement device to detect whether the swivel joint rotates within the lead screw nut. The present invention features accurate detection and high transmission stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0018] Figure 1 is a schematic structural diagram of the present invention;

[0019] Figure 2 is Figure 1 a partially enlarged view of part I in

[0020] Figure 3 an assembly drawing of the random assembly machine and the swivel joint rotation measurement device.

[0021] The reference numerals in the drawings are as follows: 1 - rotating part disk, 1-1 - clamping position, 2 - positioning plate, 3 - lower pressing cylinder, 4 - cross plate, 5 - lower pressing shaft, 6 - induction block, 7 - rotation measurement sensor, 8 - centering mechanism, 9 - lead screw nut, 10 - swivel joint, 11 - rising cylinder, 12 - side rotation motor, 13 - rising shaft, 14 - lower rotating shaft, 15 - upper rotating shaft, 16 - table top, 17 - cam divider. SPECIFIC EMBODIMENTS

[0022] Refer to Figure 1 、 Figure 2 and Figure 3The flexible joint measuring device of this assembly includes a positioning plate 2. The positioning plate 2 is vertically fixed to the table 16 of the assembly machine. The table 16 is provided with a rotating disk 1. The rotating disk 1 is horizontally arranged, and a number of locking positions 1-1 are evenly opened on its outer periphery. Each locking position 1-1 is a recessed groove structure. The shape of the recess matches the shape of the nut. The bottom of the recess has a through hole that allows the flexible joint to pass through. In this way, the nut 9 of the assembly can be locked in the recess and the flexible joint 10 of the assembly can pass through to support the assembly. The lower end of the rotating disk 1 is rotatably connected to a cam divider 17, which is driven by a motor to rotate. Driven by the motor, the cam divider 17 rotates, causing the rotating disk 1 on the cam divider 17 to rotate. The locking position 1-1 on the outer periphery of the rotating disk 1 drives the nut 9 equipped with the hinge within the locking position 1-1 to rotate from the previous nut hinge assembly station to the nut hinge rotation measuring station to measure the rotation of the hinge 10. One side of the rotating disk 1 is adjacent to the positioning plate 2 and is located in the middle of the positioning plate 2. The lower part of the positioning plate 2 is provided with a lifting mechanism. The lifting mechanism is a lifting cylinder 11. The cylinder rod of the lifting cylinder 11 points upward, and the upper end is fixed to a rotation measuring motor 12 through a horizontally set plate or rod, which can drive the rotation measuring motor 12 to move up and down. The rotation measuring motor 12 is coaxially fixed to the lifting shaft 13, which can drive the lifting shaft 13 to rotate. The upper end of the lifting shaft 13 is a slotted structure that can be engaged with the outer side of the hinge 10. The lifting shaft 13 is located below the locking position 1-1 and can be directly opposite the lower end of the hinge 10. When the lifting cylinder 11 drives the measuring motor 12 to move upward, the upper end of the lifting shaft 13 is locked on the outside of the hinge 10 and lifts the hinge 10, so that the hinge 10 and the nut 9 have a certain gap, so that the hinge 10 can rotate inside the nut 9.

[0023] See Figure 1 , 2 and Figure 3The positioning plate 2 of the flexible joint rotation measuring device has a pressing mechanism on its upper part. The pressing mechanism is a pressing cylinder 3, with the cylinder rod pointing downwards and the end of the cylinder rod fixed to a horizontally set horizontal plate 4. The horizontal plate 4 has a hole that passes through the upper and lower end faces, and an upper rotating shaft 15 is rotatably connected in the hole. A sensing block 6 is fixed to the side of the upper rotating shaft 15; a rotation measuring sensor 7 is provided on the horizontal plate 4 on one side of the sensing block 6; thus, the rotation measuring sensor 7 is triggered once every time the sensing block 6 rotates with the upper rotating shaft 15. The lower end of the upper rotating shaft 15 is coaxially fixed to a lower rotating shaft 14 through a self-aligning mechanism 8. The self-aligning mechanism 8 is a cross-slider coupling, and the upper and lower ends of the cross-slider coupling are coaxially fixed to the upper rotating shaft 15 and the lower rotating shaft 14, respectively. The lower end of the lower rotating shaft 14 is coaxially fixed to a pressing shaft 5. The downward pressing shaft 5 is located above the locking position 1-1, vertically opposite the rising shaft 13. Its lower end is a conical structure that can align with the inner circle of the hinge 10, and it is directly opposite the upper end of the hinge 10. Thus, after the rising shaft 13 lifts the hinge 10, the downward pressing shaft 5 is driven downward by the downward pressing cylinder 3, and its lower end presses against the hinge 10. Because the lower end of the downward pressing shaft 5 is a conical structure that aligns with the inner circle of the hinge 10, the lower end of the downward pressing shaft 5 is embedded within the inner circle of the hinge 10, achieving a stable connection. In this way, the rotation measuring motor 12 can be started to drive the rising shaft 13, which is locked outside the hinge 10, to rotate. The rotating rising shaft 13 drives the hinge 10 to rotate, which in turn drives the lower pressing shaft 5 to rotate. The rotating lower pressing shaft 5 drives the coaxially connected lower rotating shaft 14 to rotate coaxially. Since the lower rotating shaft 14 is coaxially connected to the upper rotating shaft 15 through a cross-slider coupling, the lower rotating shaft 14 drives the upper rotating shaft 15 to rotate coaxially through the cross-slider coupling. The rotating upper rotating shaft 15 drives the sensing block 6 to rotate along with it. During the rotation of the sensing block 6, the rotation measuring sensor 7 located on one side of the sensing block 6 detects the sensing block 6 passing by the rotation measuring sensor 7, thus determining that the hinge 10 is rotating inside the nut. Conversely, when the rotation measuring motor 12 is started, if the rotation measuring sensor 7 located on one side of the sensing block 6 does not detect the sensing block 6 passing by the rotation measuring sensor 7, then it is determined that the hinge 10 cannot rotate inside the nut.

[0024] The method of the present invention, using the above-mentioned rotation measuring device, comprises the following steps:

[0025] 1) Rotate the rotating disk 1 so that the two ends of the hinge 10 to be tested are respectively aligned with the lower pressing shaft 5 and the rising shaft 13;

[0026] 2) The lifting mechanism drives the measuring motor 12 to move upward. When it moves to the top, the lifting mechanism stops working. The lifting shaft 13 located on the shaft of the measuring motor 12 lifts the hinge 10 and makes the hinge 10 and the nut 9 have a gap.

[0027] 3) The pressing mechanism drives the pressing shaft 5 to press down. When it moves to the bottom, the pressing mechanism stops working. The lower end of the pressing shaft 5 is connected to the inner circle of the hinge 10 and clamps the hinge 10 with the rising shaft 13.

[0028] 4) Turn on the rotation measuring motor 12, which drives the rising shaft 13 to rotate; the rotating rising shaft 13 drives the hinge 10 to rotate, and the rotating hinge 10 drives the lower pressure shaft 5 to rotate. The sensing block 6 located on the lower pressure shaft 5 rotates together with the lower pressure shaft 5; if the rotation measuring sensor 7 detects a signal, it is determined that the hinge 10 is rotating inside the nut 9; if the rotation measuring sensor 7 does not detect a signal, it is determined that the hinge 10 cannot rotate normally inside the nut 9.

[0029] 5) After a joint 10 has been tested, the measuring motor 12 is stopped; and the measuring motor 12 is driven to move down and reset through the lifting mechanism. The moved and reset measuring motor 12 drives the lifting shaft 13 located on the shaft of the measuring motor 12 to move down and reset; and the pressing shaft 5 is driven to move up and reset through the pressing mechanism; the reset lifting shaft 13 and pressing shaft 5 release the joint 10 that has been tested.

[0030] 6) Rotate the rotating disk 1 again so that the two ends of the next hinge 10 to be tested are respectively aligned with the lower pressing shaft 5 and the rising shaft 13. Then repeat steps 2)-5) above to check again whether the hinge 10 can rotate in the matching nut 9.

Claims

1. A method for measuring the rotation of a hinged joint, characterized in that: The rotation measuring device includes a vertically arranged positioning plate (2), and a rotating disk (1) is provided on one side of the positioning plate (2); the rotating disk (1) is horizontally arranged, and a number of slots (1-1) for receiving any component are evenly opened on its outer periphery; a lifting mechanism is provided on the positioning plate (2) below the rotating disk (1); a rotation measuring motor (12) is fixedly connected to the lifting mechanism; a lifting shaft (13) is fixedly connected to the axial direction of the rotation measuring motor (12); and a rotating disk (1) is provided on the positioning plate (2) above the rotating disk (1). A pressing mechanism; the pressing mechanism is rotatably connected to a pressing shaft (5); the pressing shaft (5) and the rising shaft (13) are vertically opposite each other; the locking position (1-1) of the rotating disk (1) can be rotated between the pressing shaft (5) and the rising shaft (13); a sensing block (6) is provided on the pressing shaft (5); the rotation measuring device is provided with a rotation measuring sensor (7) used in conjunction with the sensing block (6); the upper end of the rising shaft (13) is a slotted structure that can be engaged with the outer side of the hinge (10); The method steps are as follows: 1) Rotate the rotating disk (1) so that the two ends of the joint to be tested are respectively aligned with the lower pressure shaft (5) and the upper pressure shaft (13); 2) The lifting mechanism drives the measuring motor (12) to move upward. When it moves to the top, the lifting mechanism stops working. The lifting shaft (13) located on the shaft of the measuring motor (12) lifts the joint (10) and makes the joint (10) and the nut (9) have a gap. 3) The pressing mechanism drives the pressing shaft (5) to press down. When it moves to the bottom, the pressing mechanism stops working. The lower end of the pressing shaft (5) is connected to the inner circle of the joint (10) and clamps the joint (10) with the rising shaft (13). 4) Turn on the rotation measuring motor (12), which drives the rising shaft (13) to rotate; the rotating rising shaft (13) drives the hinge (10) and the lower pressure shaft (5) to rotate, and the sensing block (6) located on the lower pressure shaft (5) rotates together with the lower pressure shaft (5); if the rotation measuring sensor (7) detects a signal, it is determined that the hinge (10) is rotating inside the nut (9); if the rotation measuring sensor (7) does not detect a signal, it is determined that the hinge (10) cannot rotate normally inside the nut (9); 5) After a joint (10) has been tested, the measuring motor (12) is stopped; the rising shaft (13) is reset under the drive of the rising mechanism, and the pressing shaft (5) is reset under the drive of the pressing mechanism; the reset rising shaft (13) and pressing shaft (5) release the joint (10) that has been tested. 6) Rotate the rotating disk (1) again so that the two ends of the next movable joint (10) to be tested are respectively aligned with the lower pressing shaft (5) and the rising shaft (13); then repeat steps 2)-5 above.

2. The method for measuring the rotation of any movable joint according to claim 1, characterized in that: The lower pressure shaft (5) is provided with a self-aligning mechanism (8).

3. The method for measuring the rotation of any movable joint according to claim 1, characterized in that: The lower end of the pressure shaft (5) is a conical structure that can be connected to the inner circle of the joint (10).

Images