Wire drawing tool for auxiliary measurement of straightness of ultra-large cylinder

Abstract

The utility model relates to the field of measuring equipment, in particular to a wire drawing tool for assisting in measuring the straightness of an ultra-large cylinder. The device comprises a cylinder body, a clamping plate, a positioning screw, a clamping screw, a clamping bulge and a wire drawing mechanism. The number of the clamping plates is two, the two clamping plates are located at the two ends of the barrel body, edge openings of the two ends of the barrel body are located in clamping openings of the two clamping plates respectively, the number of the positioning screws is two, each set of positioning screws penetrate through the tops of the two clamping plates respectively, and the clamping screws are located on one sides of the sets of positioning screws. The clamping protrusions are arranged at the tops of the clamping screws, and the wire pulling mechanisms are arranged on one sides of the two clamping plates.

Description

Technical Field

[0001] The utility model relates to the field of measuring equipment, in particular to a wire drawing tool for assisting in measuring the straightness of a super-large cylinder. Background Art

[0002] Straightness measurement of large cylinders plays an important role in the engineering field, especially in processes involving precision manufacturing and assembly. Straightness refers to the rate of change of the length of the cylinder along a specific direction. It is one of the indicators to measure whether the shape of the cylinder meets the design requirements. In many applications, such as oil drilling equipment, aerospace components, and automobile wheels, accurate measurement of straightness is essential to ensure the quality and performance of the product. Straightness measurement can help engineers and manufacturers understand the deformation of the cylinder during the manufacturing process, detect and correct deviations in time, and ensure that the straightness of the final product meets the design and functional requirements.

[0003] However, the existing measuring devices often encounter the following problems during use:

[0004] (1) In current large cylinders, the plate thickness between the cylinder sections varies greatly (for example, the top plate thickness is 75 mm, the bottom plate thickness is 35 mm, and the difference between the two is 40 mm). The existing measuring device is difficult to obtain the measurement data of the same reference, which affects the straightness measurement of the cylinder, and cannot meet the requirements of freely measuring the straightness in any direction.

[0005] (2) If laser measurement is used, several people are needed to assist in surveying the locations, which will increase labor costs if large-scale measurement work is performed.

[0006] (3) The use of laser and other detection instruments not only has a high threshold for use, but is also inconvenient to carry. Utility Model Content

[0007] The main purpose of the utility model is to provide a wire drawing tool for assisting in measuring the straightness of a super-large cylinder, so as to effectively solve the problem mentioned in the background technology that the existing measuring devices are difficult to obtain measurement data of the same reference.

[0008] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0009] A wire drawing tool for assisting in measuring the straightness of an extra-large cylinder, comprising:

[0010] :Cylinder;

[0011] A clamping plate, wherein two clamping plates are provided, and the two clamping plates are located at two ends of the cylinder, and the edges at two ends of the cylinder are respectively located in the clamping openings of the two clamping plates;

[0012] Positioning screws, wherein two groups of positioning screws are provided, and each group of positioning screws is respectively passed through the top of the two clamping plates;

[0013] A retaining screw, the retaining screw being located at one side of each set of positioning screws;

[0014] A locking protrusion, wherein the locking protrusion is arranged on the top of the locking screw;

[0015] A wire pulling mechanism is provided on one side of the two clamping plates.

[0016] The wire pulling mechanism further comprises:

[0017] A mounting frame, one end of which is fixedly connected to one side of the card plate;

[0018] A rotating shaft rod, one end of which is passed through the mounting frame;

[0019] A hand crank, the hand crank being mounted on the other end of the rotating shaft;

[0020] A ratchet wheel, the ratchet wheel being sleeved on the connection between the hand crank handle and the rotating shaft rod;

[0021] A lever column, the lever column being longitudinally arranged below the ratchet wheel;

[0022] A fixing rod, the fixing rod is horizontally arranged below the mounting frame, one end of the fixing rod is fixedly connected to one side of the clamping plate, and the other end of the fixing rod is movably connected to the rod body of the lever column;

[0023] A spring, one end of which is connected to one side of the lever column, and the other end of which is connected to one side of the clamping plate;

[0024] A top column, one end of which is movably connected to the bottom end of the lever column;

[0025] A slot, the slot being opened on the top column;

[0026] A latch is installed on the rod body of the fixing rod, and the plugging end of the latch is plugged into the slot.

[0027] The number of the latching protrusions is four.

[0028] An oblique cut is provided on the top of the lever column.

[0029] The top of the lever column is engaged with the ratchet wheel.

[0030] The spring is located above the fixing rod.

[0031] Compared with the prior art, the beneficial effects of the utility model are:

[0032] (1) The wire pulling tool and wire pulling mechanism designed by the utility model can freely retract and release the wire. When combined with the PE wire, the tightness of the wire can be freely adjusted to ensure that the wire is not deformed when pulled straight in a cylinder with a length of 30m, effectively ensuring the accuracy of the measurement data.

[0033] (2) The wire drawing tool has a wide range of applications, not only for flat steel plates, but also for curved steel plates.

[0034] (3) The wire drawing tool designed by the utility model is small in size, light in weight, and easy to carry. It can be clamped at any position on the wall of a large cylinder to measure the straightness. It is easy to use and can be operated by one person without long-term operation, which effectively improves production efficiency and saves labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.

[0036] Figure 1 It is a schematic diagram of the overall appearance of the utility model.

[0037] Figure 2 It is a schematic diagram of a single appearance of the utility model.

[0038] Figure 3 It is a side schematic diagram of the utility model.

[0039] Numbers in the figure: 1, cylinder; 2, clamping plate; 3, positioning screw; 4, clamping screw; 5, clamping protrusion; 6, wire pulling mechanism; 601, mounting frame; 602, rotating shaft rod; 603, hand crank handle; 604, ratchet; 605, lever column; 606, fixing rod; 607, spring; 608, top column; 609, slot; 610, latch. DETAILED DESCRIPTION

[0040] 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.

[0041] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] like Figure 1-3 As shown, a wire drawing tool for assisting in measuring the straightness of an ultra-large cylinder includes: a cylinder 1, a clamping plate 2, a positioning screw 3, a clamping screw 4, a clamping protrusion 5, and a wire drawing mechanism 6. Two clamping plates 2 are provided, and the two clamping plates 2 are located at both ends of the cylinder 1. The edges of the two ends of the cylinder 1 are respectively located in the clamping ports of the two clamping plates 2. Two groups of positioning screws 3 are provided, and each group of positioning screws 3 is respectively penetrated through the top of the two clamping plates 2. Through the cooperation of the positioning screws 3 and the clamping plates 2, they can be firmly placed at both ends of the cylinder 1, so that they are not affected by accidental factors such as accidental touch or loosening during the measurement process, and measurement errors caused by loosening are avoided. The clamping screw 4 is located on one side of each group of positioning screws 3, and the clamping protrusion 5 is set on the top of the clamping screw 4. There are four clamping protrusions 5. The clamping protrusion 5 can effectively prevent the PE line from sliding to both sides. At the same time, by adjusting the height of the clamping screw 4, parallel lines with the same reference can be set for the steel plates with a thickness difference of less than 120 mm at both ends. A wire pulling mechanism 6 is provided on one side of the two clamping plates 2 .

[0043] In this embodiment, Figure 2-3As shown, in order to allow the PE line to be freely retracted and released during measurement, a wire pulling mechanism 6 is provided, including: one end of a mounting frame 601 is fixedly connected to one side of the clamping plate 2, one end of a rotating shaft rod 602 is passed through the mounting frame 601, a hand crank handle 603 is installed on the other end of the rotating shaft rod 602, a ratchet 604 is sleeved on the connection between the hand crank handle 603 and the rotating shaft rod 602, a lever column 605 is longitudinally arranged below the ratchet 604, an oblique cut is provided on the top of the lever column 605, and the top of the lever column 605 is engaged with the ratchet 604. The fixing rod 606 is horizontally arranged below the mounting frame 601, one end of the fixing rod 606 is fixedly connected to one side of the card plate 2, the other end of the fixing rod 606 is movably connected to the rod body of the lever column 605, one end of the spring 607 is connected to one side of the lever column 605, and the other end of the spring 607 is connected to one side of the card plate 2. When one end of the PE line is wound around one end of the rotating shaft rod 602, the hand crank 603 is rotated, and the hand crank 603 will rotate the ratchet 604 and pull the PE line at the same time until it is horizontal. Here, the rotation direction of the rotating hand crank 603 should be opposite to the rotation direction of the teeth of the ratchet 604, because the other end of the fixing rod 606 is movably connected to the rod body of the lever column 605, and when it is rotated in the opposite direction of the rotation direction of the teeth of the ratchet 604, the top of the lever column 605 will be moved in the same rotation direction, but this activity will squeeze the spring 607, and the spring 607 rebounds and resets the top of the lever column 605, so that continuous rotation can be achieved.

[0044] In the above embodiment, in order to enable the pulling force of the wire pulling mechanism 6 to be fixed after the wire is pulled, one end of the top column 608 is movably connected to the bottom end of the lever column 605, and a slot 609 is opened on the top column 608. The pin 610 is installed on the rod body of the fixed rod 606, and the plug end of the pin 610 is plugged into the slot 609. The pin 610 can make the top column 608 and the fixed rod 606 have a connection relationship, so that the top column 608 is against one side of the card plate 2 to provide a supporting force for the lever column 605, so that the position of the lever column 605 is fixed. Once the hand crank handle 603 is rotated in the same direction as the ratchet 604 teeth, it will pull the spring 607, the fixed rod 606 and the top column 608 through the lever column 605. The rebound force of the spring 607 and the reverse pulling force of the fixed rod 606 and the top column 608 will make the ratchet 604 unable to rotate, thereby achieving fixation.

[0045] It should be noted that the utility model is designed to assist in measuring the straightness of a super-large cylinder. When in use, the two clamping plates 2 are placed relatively on the same lateral port at any orientation at both ends of the cylinder 1, and the positioning screws 3 are rotated and tightened to fix the edge of the cylinder 1. Then, according to the difference in plate thickness at both ends, the height of the clamping screw 4 is adjusted to eliminate the influence of the plate thickness difference and raise it to a height parallel to the cylinder 1. Then, the PE line is set on the clamping screw 4, and one end of the PE line is wrapped around the shaft of the rotating shaft 602. The slot 609 is unplugged, and the PE line is tightened by rotating the hand crank 603 so that it is also parallel to the cylinder 1. Insert the pin 610 to fix it. Finally, measure the distance from the PE line to the steel plate of the cylinder 1, and compare the theoretical distance data to obtain the straight line data. At this point, the measurement process ends.

[0046] Although the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wire drawing tool for assisting in measuring the straightness of an extra-large cylinder, characterized in that: include: Cylinder (1); A clamping plate (2), wherein two clamping plates (2) are provided, and the two clamping plates (2) are located at two ends of the cylinder (1), and the edges at two ends of the cylinder (1) are respectively located in the clamping openings of the two clamping plates (2); Positioning screws (3), wherein two groups of the positioning screws (3) are provided, and each group of positioning screws (3) is respectively passed through the top of the two clamping plates (2); A retaining screw (4), wherein the retaining screw (4) is located on one side of each set of positioning screws (3); A locking protrusion (5), wherein the locking protrusion (5) is arranged on the top of the locking screw (4); A wire pulling mechanism (6), wherein one side of each of the two clamping plates (2) is provided with the wire pulling mechanism (6).

2. A wire drawing tool for assisting in measuring the straightness of a super-large cylinder according to claim 1, It is characterized in that The wire pulling mechanism (6) further comprises: A mounting frame (601), one end of the mounting frame (601) being fixedly connected to one side of the clamping plate (2); A rotating shaft rod (602), one end of which is passed through the mounting frame (601); A hand crank handle (603), the hand crank handle (603) being mounted on the other end of the rotating shaft rod (602); A ratchet wheel (604), wherein the ratchet wheel (604) is sleeved on the connection between the hand crank handle (603) and the rotating shaft rod (602); A lever column (605), wherein the lever column (605) is longitudinally arranged below the ratchet wheel (604); A fixing rod (606), the fixing rod (606) being horizontally arranged below the mounting frame (601), one end of the fixing rod (606) being fixedly connected to one side of the clamping plate (2), and the other end of the fixing rod (606) being movably connected to the rod body of the lever column (605); A spring (607), one end of the spring (607) being connected to one side of the lever column (605), and the other end of the spring (607) being connected to one side of the clamping plate (2); A top column (608), one end of which is movably connected to the bottom end of the lever column (605); A slot (609), wherein the slot (609) is formed on the top column (608); A latch (610) is installed on the rod body of the fixing rod (606), and the plugging end of the latch (610) is plugged into the slot (609).

3. A wire drawing tool for assisting in measuring the straightness of a super-large cylinder according to claim 2, It is characterized in that Four locking protrusions (5) are provided.

4. A wire drawing tool for assisting in measuring the straightness of a super-large cylinder according to claim 2, It is characterized in that The top of the lever column (605) is provided with an oblique cut.

5. A wire drawing tool for assisting in measuring the straightness of a super-large cylinder according to claim 2, It is characterized in that The top of the lever column (605) is engaged with the ratchet wheel (604).

6. A wire drawing tool for assisting in measuring the straightness of a super-large cylinder according to claim 2, It is characterized in that The spring (607) is located above the fixing rod (606).

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