Plate installation angle inspection tool

Abstract

The invention relates to the technical field of machine manufacturing, in particular to an inspection tool for a plate installation angle. A plate installation angle inspection tool comprises a first guiding rule and a second guiding rule which are hinged together, and a hinge shaft of the first guiding rule and the second guiding rule is marked as a main hinge shaft; a receding groove is formed in the hinged end of the first guiding rule and the second guiding rule, a first connecting arm is further hinged to the inner side face of the first guiding rule, a second connecting arm is further hinged to the inner side face of the second guiding rule, and the ends, away from the guiding rules, of the first connecting arm and the second connecting arm are hinged to the same handle. The handle is provided with a first angle mark which indicates an angle formed by the edges of the outer sides of the two guiding rules according to the positions of the first connecting arm and the second connecting arm. Therefore, the problems of inconvenient storage, easy confusion and high cost caused by the fact that a plurality of inspection tools need to be used for measurement of various angles in ship construction in the prior art are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical manufacturing, and in particular to a tool for inspecting the installation angle of a plate. Background Art

[0002] Throughout the shipbuilding process, many plates need to be welded at specific angles. To ensure the accuracy of these angles, a fixed single template is typically created for each angle. If both edges of the template align with the plate being tested, the angle between the two plates meets the design requirements. However, the same template can only be used to test specific angles. During shipbuilding, a variety of different plate angles exist, necessitating the manufacture of a corresponding number of inspection jigs. This large number of jigs is not only inconvenient to store and easily confused, but also prevents the jigs from being fully utilized, increasing the cost of jig production. Summary of the Invention

[0003] In view of this, the present invention provides a plate installation angle inspection tool to solve the problems in the prior art of requiring multiple inspection tools to measure various angles in shipbuilding, which leads to inconvenient storage, easy confusion and high cost.

[0004] A tool for inspecting the installation angle of a plate, comprising a first ruler and a second ruler which are hingedly connected together and used to fit the surface of the plate to be inspected, wherein the hinge axis of the first ruler and the second ruler is recorded as a main hinge axis; the hinge ends of the first ruler and the second ruler are provided with an avoidance groove for avoiding the angle between the plates, the inner side surface of the first ruler is further hingedly connected to a first connecting arm, the inner side surface of the second ruler is further hingedly connected to a second connecting arm, and the ends of the first connecting arm and the second connecting arm away from the ruler are hingedly connected to the same handle, wherein the hinge axis of the first ruler and the first connecting arm is recorded as the first hinge axis, and the hinge axis of the second ruler and the second connecting arm is recorded as the first hinge axis. The hinge axis of the arm is recorded as the second hinge axis, the hinge axis of the first connecting arm and the handle is the third hinge axis, and the hinge axis of the second connecting arm and the handle is the fourth hinge axis. The line connecting the main hinge axis and the first hinge axis is parallel to the edge of the first ruler used to fit the plate, the connection between the main hinge axis and the second hinge axis is parallel to the edge of the second ruler used to fit the plate, and the distance between the line connecting the first hinge axis and the third hinge axis is equal to the distance between the line connecting the second hinge axis and the fourth hinge axis. The handle is provided with a first angle mark indicating the angle between the outer edges of the two rulers according to the positions of the first connecting arm and the second connecting arm.

[0005] Furthermore, the inner side of the first ruler is hingedly connected to a first support arm, and the end of the first support arm away from the first ruler slides with the first connecting arm; the inner side of the second ruler is hingedly connected to a second support arm, and the end of the second support arm away from the second ruler slides with the second connecting arm.

[0006] Furthermore, a first sliding groove is provided on the first connecting arm, and a first slider that can slide along the first sliding groove is accommodated in the first sliding groove, a first threaded hole is provided on the first slider, and a first fastening screw that can be installed in the first threaded hole is installed on the first support arm so that the end of the first support arm can slide along the first connecting arm; a second sliding groove is provided on the second connecting arm, and a second sliding groove accommodates a second slider that can slide along the second sliding groove, a second threaded hole is provided on the second slider, and a second fastening screw that can be installed in the second threaded hole is installed on the second support arm so that the end of the second support arm can slide along the second connecting arm.

[0007] Furthermore, length marks for measuring length are provided on the edges of the first and second rulers for fitting the plates.

[0008] Furthermore, the avoidance groove is an arc-shaped groove.

[0009] Furthermore, the ends of the first and second straightedges located at the main hinge shafts have complementary step structures, and the step structures are half the thickness of the straightedge body.

[0010] Furthermore, the handle is a rectangular frame structure, and the length of the handle is less than twice the distance from the main hinge axis to the outside of the ruler.

[0011] Furthermore, the first connecting arm and the second connecting arm are provided with second angle marks indicating the angle formed by the two outer sides of the ruler according to the position of the support arm.

[0012] Furthermore, the handle is provided with a groove for avoiding the first connecting arm and the second connecting arm, and the third hinge axis and the fourth hinge axis of the first connecting arm and the second connecting arm are located in the groove.

[0013] Furthermore, a threaded hole is provided on the first hinge shaft for cooperating with the first fastening screw, and a threaded hole is provided on the second hinge shaft for cooperating with the second fastening screw. During the rotation of the first support arm around the first connecting arm, the first threaded hole can correspond to the threaded hole at the first hinge shaft, and during the rotation of the second support part around the second connecting arm, the second threaded hole can correspond to the threaded hole at the second hinge shaft.

[0014] The beneficial effects of the inspection tool for plate installation angles in the present invention are as follows: the first ruler and the second ruler connected together by a hinge in the present invention are convenient for approaching the plate to be measured, so the angle formed by the plate is the angle formed by the first ruler and the second ruler, and avoidance grooves are provided on the first ruler and the second ruler to facilitate the alignment of the ruler and the plate, avoiding the inability to align due to the end portions; the first connecting arm and the second connecting arm are conveniently connected together with the handle, and a polygonal structure is formed by the two connecting arms and the two rulers. The setting of the handle can facilitate the connection and relative fixation of the two connecting arms, and is also convenient for personnel to operate. A polygon can be formed by the connection of the main hinge shaft, the first hinge shaft, the second hinge shaft, the third hinge shaft and the fourth hinge shaft. Due to the connection between the main hinge shaft and the second hinge shaft If the angle between the first and second hinge axes is equal to the angle between the ruler and the plate, the angle between the ruler and the plate will be equal. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 Schematic diagram of the structure of the inspection tool for plate installation angle in the present invention;

[0017] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0018] Figure 3 for Figure 1 Side view at point B in the middle;

[0019] Figure 4 for Figure 1 A partial enlarged view of point C in the middle;

[0020] Figure 5This is a schematic diagram of the storage state of the inspection tool for the installation angle of the plate in the present invention;

[0021] Figure 6 This is a schematic diagram of the use of the inspection tool for the installation angle of the plate in the present invention;

[0022] Figure 7 This is a simplified schematic diagram of the inspection tool for the plate installation angle in the present invention.

[0023] The meanings of the numbers in the figure are: 11, first ruler; 12, second ruler; 13, length mark; 21, first connecting arm; 22, second connecting arm; 23, first slide groove; 24, second slide groove; 31, first support arm; 32, second support arm; 33, first fastening screw; 34, second fastening screw; 35, second slider; 4, handle; 41, first angle mark; 51, main hinge axis; 52, first hinge axis; 53, second hinge axis; 54, third hinge axis; 55, fourth hinge axis. DETAILED DESCRIPTION

[0024] To make the objectives, technical solutions, and advantages of the present invention more clearly apparent, the present invention is described below using specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present invention.

[0025] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0026] It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, such information should not be limited to these terms and should not be understood to indicate or imply relative importance. These terms are only used to distinguish information of the same type from each other. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information without departing from the scope of this disclosure. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining."

[0027] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0028] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal communication between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0029] In the following description, the suffixes such as "module", "component" or "unit" used to represent elements are only used to facilitate the description of the present invention and have no specific meaning. Therefore, "module" and "component" can be used interchangeably.

[0030] In order to better understand the technical solution of the present invention, the present invention is described in detail below with reference to the accompanying drawings.

[0031] In the embodiment 1 of the inspection tool for plate installation angle of the present invention (hereinafter referred to as the inspection tool):

[0032] like Figure 1 As shown, the inspection tooling in this embodiment includes a first ruler 11 and a second ruler 12 hingedly connected together. The first ruler 11 and the second ruler 12 both have flush outer edges so as to facilitate mutual fitting with the plate to be inspected. The hinge axis of the first ruler 11 and the second ruler 12 is recorded as the main hinge axis 51. The first ruler 11 and the second ruler 12 are provided with avoidance grooves for avoiding the angular position of the plate at the position of the main hinge axis 51, so that when dealing with plates at different angles, there will be no interference with the plate, and the ruler and the plate can be kept in a fitted state. Specifically, in this embodiment, the avoidance groove is an arc-shaped groove, and the first ruler 11 and the second ruler 12 have an arc-shaped connecting edge, and the main hinge axis 51 is located on the arc-shaped connecting edge. In order to make the first ruler 11 and the second ruler 12 in the same plane, as shown Figure 2 and Figure 3As shown, both the first and second straightedges 11 and 12 have step structures at one end located at the main hinge shaft 51, and the step structure at the end of the first straightedge 11 is complementary to the step structure at the end of the second straightedge 12. The thickness of the step structure is half of the thickness of the straightedge body. The step structures of the first and second straightedges 11 and 12 combined are exactly equal to the thickness of the straightedges themselves. When in use, the first and second straightedges 11 and 12 are flush, which is convenient for operation.

[0033] To facilitate gripping and operation, a first connecting arm 21 is hingedly connected to the inner side of the first straightedge 11, and a second connecting arm 22 is intersectingly connected to the inner side of the second straightedge 12. A handle 4 is hingedly connected to the end of the first connecting arm 21 facing away from the first straightedge 11, and the same handle 4 is hingedly connected to the end of the second connecting arm 22 facing away from the second straightedge 12. The handle 4 is a rectangular frame structure, with a cavity provided at the center to facilitate gripping by the operator. The hinged connection points of the first and second connecting arms 21, 22 and the handle 4 are located on the same rectangular side of the handle 4. To facilitate the connection between the handle 4 and the two connecting arms, in this embodiment, a groove is provided on the handle 4 to accommodate the first and second connecting arms 21, 22. The ends of the first and second connecting arms 21, 22 are located within the handle 4, meaning that the handle 4 can be considered a double-layer structure, with the two connecting arms located in the central cavity of the double-layer structure. The provision of the groove prevents the first and second connecting arms 21, 22 from interfering with the handle 4 during rotation relative to the handle 4, resulting in the handle 4 being unable to rotate to the desired angle.

[0034] like Figure 1 and Figure 4As shown, the angle of the ruler can be changed by using two connecting arms, two rulers, and a handle 4, but it cannot be held in a specific position. Therefore, an additional support arm is provided in this embodiment. Specifically, a first support arm 31 is hingedly connected to the inner side of the first ruler 11, and the end of the first support arm 31 away from the first ruler 11 slides in cooperation with the first connecting arm 21; a second support arm 32 is hingedly connected to the inner side of the second ruler 12, and the end of the second support arm 32 away from the second ruler 12 slides in cooperation with the second connecting arm 22. To achieve position locking, a first slide groove 23 is provided on the first connecting arm 21. The first slide groove 23 accommodates a first slider that can slide along the first slide groove 23. The first slider is provided with a first threaded hole. A first fastening screw 33 that can be installed in the first threaded hole is installed on the first support arm 31, so that the end of the first support arm 31 can slide along the first connecting arm 21. Under normal circumstances, a gap is maintained between the first slider and the first slot 23, allowing the first slider to slide freely relative to the first slot 23. When locking is required, the first fastening screw 33 is tightened, causing the first slider to press against the inner surface of the first slot. Friction prevents the first slider and the first slot 23 from sliding, thereby maintaining the relative position between the first support arm 31 and the first connecting arm 21. The second connecting arm 22 is provided with a second slot 24, which accommodates a second slider 35 that can slide along the second slot 24. The second slider is provided with a second threaded hole, and the second support arm 32 is penetrated by a second fastening screw 34 that can be installed in the second threaded hole, allowing the end of the second support arm 32 to slide along the second connecting arm 22.

[0035] In other words, unlocking the fastening screw allows the ruler and the connecting arm to slide relative to each other. However, when the fastening screw is locked, a stable triangular structure is formed between the ruler, the connecting arm, and the support arm. The ruler and the connecting arm can no longer move relative to each other, thereby maintaining the angle between the first ruler 11 and the second ruler 12, facilitating inspection. The provision of a slider facilitates precision machining, reduces the gap between the slider and the chute, and maintains the position of each component in a specific position during movement, reducing errors. It is worth noting that the fastening screws in this embodiment are all knob-type screws with a stud at one end and a hand-tightening portion at the other end, making them easy for operators to operate directly. Of course, in other embodiments, screws with a slotted or cross-shaped slot can also be used, requiring a screwdriver for tightening. Furthermore, in other embodiments, the slider can be omitted. In this case, the chute is a through slot running vertically through the support arm. The fastening screw can be directly installed at the end of the support arm, with the screw head of the fastening screw and the support arm used to limit the chute, thus achieving sliding and unlocking of the support arm and the connecting arm. Alternatively, in other embodiments, the slider and the support arm may be connected via a connecting pin or a connecting shaft, but in this case, there is no locking function.

[0036] like Figure 5 As shown, in addition, since the outer side of the ruler itself is flat, length marks 13 for measuring length are provided on the edges of the first ruler 11 and the second ruler 12 for fitting the plate. In this embodiment, the scales are painted on the surface of the ruler, so that the ruler can be used as a ruler when it is stored, which is convenient for expanding its function. Specifically, threaded holes are provided on the first hinge shaft 52 and the second hinge shaft 53. When in use, the first fastening screw 33 on the first support arm 31 can be removed. By rotating the first support arm 31 so that the first threaded hole on the first support arm 31 corresponds to the hole on the first hinge axis, the first fastening screw 33 is then used to fix the first hinge shaft 52 and the first support arm 31. At this time, the first support arm is locked. Similarly, the second support arm 32 can be locked, and then the inspection tool can be kept in the stored state.

[0037] In this embodiment, it is necessary to know the angle formed by the two rulers in order to facilitate the inspection of the plate. Therefore, the first thing needed is to know the angle formed by the two rulers. The connection relationship between the ruler, the connecting arm and the handle 4 is simplified. Since the line connecting the main hinge axis 51 and the first hinge axis 52 is parallel to the edge of the first ruler 11 used to fit the plate, the angle formed by the first hinge axis 52, the main hinge axis 51 and the second hinge axis 53 is equal to the angle formed by the two ruler edges. A polygon can be simplified with the main hinge axis 51, the first hinge axis 52, the second hinge axis 53, the third hinge axis 54 and the fourth hinge axis 55 as points, as shown in FIG. Figure 7 As shown. ∠a forms the same angle with the plate. The length of bc is equal to the length of de, and the length of ab is equal to the length of ae.

[0038] In this polygon, the length of be can be determined based on the size of ∠a and the lengths of its two sides. Furthermore, be is equal to the sum of the lengths of bf, fg, and ge. The length of fg is the same as the length of cd. In a right triangle, knowing the lengths of ∠bcf and bc reveals the length of bf; knowing the lengths of ∠gde and de reveals the length of ge. In other words, the length of be can also be determined by the sizes of ∠bcd and ∠cde and the determined side lengths. This means that ∠bcd and ∠cde have a one-to-one correspondence with the target angle ∠a. That is, when ∠a has a certain size, the sizes of ∠bcd and ∠cde are also determined, and the positions of the connecting arm and handle 4 are also determined. By pre-marking the angles on handle 4, the size of ∠a can be directly determined. Of course, other calculation methods can also be used to determine the unique correspondence between the three angles, which will not be elaborated here.

[0039] Alternatively, in other embodiments, since the positions of the two support arms can also obtain a uniquely determined polygon, that is, the position of the fastening screw in the support arm and the angle between the two rulers also have a one-to-one correspondence, the angle information that can represent the angle between the two rulers can be engraved on the outer periphery of the slide groove of the first connecting arm 21 and the second connecting arm 22, so as to obtain the desired angle size according to the position of the support arm.

[0040] When using, such as Figure 6 As shown, first loosen the first fastening screw 33 and the second fastening screw 34, allowing the first support arm 31 to move freely relative to the first connecting arm 21, and the second support arm 32 to move freely relative to the second connecting arm 22. Adjust the first support arm 31 and the second support arm 32 so that the first connecting arm 21 and the handle 4 are aligned with the target scale, and the second connecting arm 22 and the handle 4 are also aligned with the target scale. The angle formed by the two rulers is now the desired target angle. Then, tighten the first fastening screw 33 and the second fastening screw 34 to relatively fix the angle formed by the two rulers. At this point, hold the handle 4 and place the inspection fixture between the plates to be inspected. If both rulers fit the plates, the angle formed by the plates is acceptable. Alternatively, the inspection fixture can be placed on the two plates without tightening the two fastening screws, maintaining the first ruler 11 and the second ruler 12 in contact with the plates. Read the first angle marking 41 on the handle 4 to determine whether the angle formed by the plates meets the requirements.

[0041] It should be understood that the embodiments described are only a portion of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

Claims

1. A tool for inspecting the installation angle of a plate, characterized by: The invention comprises a first ruler and a second ruler which are hingedly connected together and used to fit the surface of the plate to be tested, the hinge axis of the first ruler and the second ruler is recorded as the main hinge axis; the hinge ends of the first ruler and the second ruler are provided with avoidance grooves for avoiding the angle between the plates, the inner side surface of the first ruler is also hingedly connected to the first connecting arm, the inner side surface of the second ruler is also hingedly connected to the second connecting arm, the ends of the first connecting arm and the second connecting arm away from the ruler are hingedly connected to the same handle, wherein the hinge axis of the first ruler and the first connecting arm is recorded as the first hinge axis, and the hinge axis of the second ruler and the second connecting arm is recorded as the The hinge axis of the first connecting arm and the handle is the third hinge axis, and the hinge axis of the second connecting arm and the handle is the fourth hinge axis. The line connecting the main hinge axis and the first hinge axis is parallel to the edge of the first ruler used to fit the plate, the connection between the main hinge axis and the second hinge axis is parallel to the edge of the second ruler used to fit the plate, and the distance between the line connecting the first hinge axis and the third hinge axis is equal to the distance between the line connecting the second hinge axis and the fourth hinge axis. The handle is provided with a first angle mark indicating the angle between the outer edges of the two rulers according to the positions of the first connecting arm and the second connecting arm.

2. The plate installation angle inspection tool according to claim 1, characterized in that: The inner side of the first ruler is hingedly connected to a first support arm, and the end of the first support arm away from the first ruler slides with the first connecting arm; the inner side of the second ruler is hingedly connected to a second support arm, and the end of the second support arm away from the second ruler slides with the second connecting arm.

3. The plate installation angle inspection tool according to claim 2, characterized in that: The first connecting arm is provided with a first sliding groove, the first sliding groove accommodates a first slider that can slide along the first sliding groove, the first slider is provided with a first threaded hole, and the first supporting arm is equipped with a first fastening screw that can be installed in the first threaded hole, so that the end of the first supporting arm can slide along the first connecting arm; the second connecting arm is provided with a second sliding groove, the second sliding groove accommodates a second slider that can slide along the second sliding groove, the second slider is provided with a second threaded hole, and the second supporting arm is equipped with a second fastening screw that can be installed in the second threaded hole, so that the end of the second support arm can slide along the second connecting arm.

4. The plate installation angle inspection tool according to any one of claims 1 to 3, characterized in that: Length marks for measuring length are provided on the edges of the first and second rulers for fitting the plates.

5. The plate installation angle inspection tool according to any one of claims 1 to 3, characterized in that: The avoidance groove is an arc-shaped groove.

6. The plate installation angle inspection tool according to any one of claims 1 to 3, characterized in that: Ends of the first and second straightedges located at the main hinge axis have complementary step structures, and the step structures are half the thickness of the straightedge body.

7. The plate installation angle inspection tool according to any one of claims 1 to 3, characterized in that: The handle is a rectangular frame structure, and the length of the handle is less than twice the distance from the main hinge axis to the outside of the ruler.

8. The plate installation angle inspection tool according to claim 3, characterized in that: The first connecting arm and the second connecting arm are provided with second angle marks indicating the angle formed by the two outer sides of the ruler according to the position of the support arm.

9. The plate installation angle inspection tool according to any one of claims 1 to 3, characterized in that: The handle is provided with a groove for avoiding the first connecting arm and the second connecting arm, and the third hinge axis and the fourth hinge axis of the first connecting arm and the second connecting arm are located in the groove.

10. The plate installation angle inspection tool according to claim 3, characterized in that: A threaded hole is provided on the first hinge shaft to cooperate with the first fastening screw, and a threaded hole is provided on the second hinge shaft to cooperate with the second fastening screw. During the rotation of the first support arm around the first connecting arm, the first threaded hole can correspond to the threaded hole at the first hinge shaft, and during the rotation of the second support part around the second connecting arm, the second threaded hole can correspond to the threaded hole at the second hinge shaft.

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