Auxiliary device for spot inspection of torque gun

Abstract

The utility model discloses an auxiliary device for spot inspection of a torque gun, which comprises a support and a spot inspection plate mounted on the support, the spot inspection plate is provided with a plurality of groups of threaded holes, and any two groups of threaded holes are different in inner diameter; the point inspection plate is vertically and rotatably installed on the support, and the point inspection plate is rotated to adjust the position of the threaded hole relative to the support. The support comprises a supporting plate, the point inspection plate is vertically and rotatably installed on the supporting plate through a rotating shaft, and an inspection interval is formed between the point inspection plate and the supporting plate; the point inspection plate is provided with a first station and a second station relative to the supporting plate, and when the point inspection plate is located at the first station, the point inspection plate is in a horizontal state; when the spot inspection plate is located at the second station, the spot inspection plate gradually inclines downwards from the side close to the rotating shaft to the side away from the rotating shaft, the device is flexible to move and high in universality, the operation comfort and safety can be improved, and the diversified spot inspection requirements of the torque gun are met.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle battery packaging technology, and in particular to an auxiliary device for torque gun point inspection. Background Technology

[0002] Currently, battery pack assembly on production lines typically employs a combination of manual and automated equipment. Many manual and automated workstations use clutch wrenches and automatic torque guns to tighten bolts for battery pack assembly. During tightening, the torque output of the wrench and torque gun must be strictly controlled to ensure the bolts are tightened to the target torque while preventing thread damage. Therefore, the calibration and inspection of clutch wrenches and torque guns are crucial. Only tools that have passed calibration and inspection can be used on the production line to guarantee tightening quality. Torque guns need to be inspected according to the on-site tightening procedure parameters. The inspection steps for torque guns are as follows: a high-precision torque sensor is connected to the torque gun, and then the screw or bolt is tightened using the torque gun. The readings on the high-precision torque sensor and the torque gun are compared to determine whether the torque gun is qualified.

[0003] However, the torque guns used at various workstations on the current battery packaging assembly line vary considerably, with differences in their location, connectors, and parameters. Sending the torque guns for external calibration cannot guarantee that the tightening process will be in normal working condition, and the calibration cost is high, making it difficult to meet actual inspection requirements. Customizing dedicated inspection fixtures for each workstation would not only have an excessively long design and manufacturing cycle but also be relatively expensive. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model proposes an auxiliary device for torque gun point inspection.

[0005] This utility model proposes an auxiliary device for torque gun inspection, comprising: a bracket and an inspection plate mounted on the bracket, wherein the inspection plate has multiple sets of threaded holes, the threaded holes are processed according to international standards such as ISO 4762 / GB 5782, the thread accuracy reaches 6g level, and the inner diameter of any two sets of threaded holes is different.

[0006] The inspection plate is vertically rotatably mounted on the bracket, and the inspection plate is rotated to adjust the position of the threaded hole relative to the bracket.

[0007] The threaded holes on the inspection plate are standard model threaded holes. When the torque gun needs to be inspected, the bracket is moved to the position of the corresponding torque gun, and then the screw is installed into the threaded hole through the torque gun to perform the inspection. The inspection plate is mounted vertically on the bracket, and the position of the inspection plate can be adjusted according to the actual situation to facilitate the inspection operation by the staff.

[0008] It should be noted that the position of the inspection plate relative to the bracket is adjusted before the torque gun inspection. During the torque gun inspection, the position of the inspection plate relative to the bracket is fixed.

[0009] Preferably, the bracket includes a support plate, and the inspection plate is vertically rotatably mounted on the support plate via a rotating shaft, forming an inspection interval between the inspection plate and the support plate.

[0010] On the one hand, it facilitates the installation of the inspection plate and the operation of the inspection work. The rotating shaft and the support plate are detachably installed with fixing pins and other fasteners to fix the rotating shaft to the support plate. When it is necessary to adjust the position of the inspection plate relative to the support plate, the fasteners are removed and the rotating shaft is rotated. After the position of the inspection plate relative to the bracket is adjusted, the relative position of the inspection plate is fixed by installing fasteners between the rotating shaft and the support plate.

[0011] Preferably, rotating the shaft causes the inspection plate to have a portion extending out of the support plate.

[0012] The inspection plate has a section that extends out from the support plate, which expands the space for inspection operations. Operators can more easily operate on the threaded holes of the extension section, especially when inspecting some larger screws or bolts. This avoids the inconvenience caused by limited space and improves inspection efficiency.

[0013] Preferably, the support plate has a placement area for placing screws or bolts.

[0014] This facilitates the placement of screws or bolts of different types. Specifically, those skilled in the art can place a storage box in this placement area, and place screws or bolts of different types inside the storage box, further increasing the convenience of torque gun inspection.

[0015] Preferably, the bottom of the bracket is provided with rollers.

[0016] This allows the inspection plate to be moved according to the actual position of the torque gun. It should be noted that the roller can be a roller with a locking function, as is available in the prior art.

[0017] Preferably, the inspection plate has a first station and a second station relative to the mounting plate. When the inspection plate is in the first station, the inspection plate is in a horizontal state. When the inspection plate is in the second station, the inspection plate gradually tilts downward from the side closer to the rotating shaft to the side farther away from the rotating shaft.

[0018] When the inspection plate is in the second position, taller operators no longer need to bend over or twist their bodies significantly during operation, effectively reducing physical fatigue and greatly improving operational convenience. This makes the entire inspection work more efficient and comfortable, and lowers the risk of physical fatigue and work errors that may be caused by prolonged operation. It also allows staff to adjust the position of the inspection plate according to actual conditions, facilitating the inspection of the torque gun.

[0019] Preferably, the rotating shaft is provided with a limiting support extension, which has a supporting inclined surface. When the inspection plate is in the second working position, the supporting inclined surface contacts the bottom surface of the part of the inspection plate near the rotating shaft and limits the position of the inspection plate.

[0020] This facilitates support for the inspection plate at the second workstation, preventing the inspection plate from moving relative to the support during the inspection process.

[0021] Preferably, a support column is detachably installed on the limiting support, and the support column limits the inspection plate when the inspection plate is in the first working position.

[0022] This facilitates the support of the inspection plate at the first work station.

[0023] The present invention proposes an auxiliary device for torque gun inspection, which is highly mobile: this inspection auxiliary device is equipped with a movable support component, which can be moved freely and quickly to the workstation that needs to be inspected, greatly improving the efficiency of inspection.

[0024] High versatility: The inspection plate is equipped with threaded holes for different types of screws. Torque inspection can be performed simply by taking the corresponding screw. It is applicable to torque guns with different interfaces and parameters, meeting the inspection needs of different workstations on the production line.

[0025] Furthermore, the inspection board is about 1.2 meters above the ground, and the setting of the first and second workstations on the inspection board improves the comfort and safety of operation: it eliminates the need for operators to bend over or overextend their arms when performing inspection operations, reducing fatigue and improving the comfort and safety of operation.

[0026] Cost reduction: It avoids the high cost and long cycle of customizing special inspection auxiliary devices for each workstation, and also reduces the cost of sending them out for calibration.

[0027] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0028] Figure 1 This is the front view of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of the inspection plate after it is rotated according to this utility model;

[0030] Figure 3 This is a schematic diagram of the inspection plate of this utility model when it is in an inclined state;

[0031] Figure 4 This is a schematic diagram of the inspection board in the first working position in some embodiments of the present invention;

[0032] Figure 5 This is a schematic diagram of the inspection board in the second work position in some embodiments of the present invention;

[0033] In the diagram: 1. Inspection plate; 101. Threaded hole; 2. Bracket; 201. Support plate; 202. Roller; 3. Rotating shaft; 4. Limiting support extension; 5. Support column. Detailed Implementation

[0034] The embodiments of this utility model are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0035] like Figures 1-5 This invention discloses an auxiliary device for torque gun inspection. The device includes an inspection plate 1 with threaded holes 101 for matching different types of bolts or screws. Multiple sets of threaded holes 101 are provided, and the diameter of any two sets of threaded holes is different. Multiple sets of threaded holes 101 are machined using a high-precision CNC machining center, achieving a thread accuracy of 6g. The inner diameter of the threaded holes 101 is set to various specifications such as M6, M8, M10, and M12 to meet the inspection requirements of different torque guns.

[0036] The inspection plate 1 is vertically rotated and mounted on the bracket 2;

[0037] The bracket 2 includes a support plate 201, which is made of 5mm thick Q235 steel plate to ensure sufficient strength and stability. Support legs are provided at the bottom of the support plate 201, with four sets of legs. Each set of legs is equipped with a locking roller 202 at its bottom, facilitating movement and ensuring the stability of the device during inspection.

[0038] On one side of the support plate 201, a mounting hole matching the rotating shaft 3 is machined. The rotating shaft 3 is passed through the mounting hole on the support plate 201 and rotatably mounted on the support plate 201. The inspection plate 1 is mounted on the top of the rotating shaft 3, and a fixing pin (not shown in the figure) is installed between the rotating shaft 3 and the support plate 201 to fix the rotating shaft 3 on the support plate 201.

[0039] The inspection plate 1 is vertically rotated and mounted on the support plate 201 via the rotating shaft 3, so that an inspection interval of about 20mm is formed between the inspection plate 1 and the support plate 201, which facilitates the operator to perform inspection operations.

[0040] The inspection plate 1 is mounted on the rotating shaft 3 in a horizontal rotation, so that the inspection plate 1 rotates relative to the rotating shaft 3 and thus the inspection plate 1 is in the first working position and the second working position.

[0041] When the inspection plate 1 is in the first position, it is rotated to a horizontal position. A limiting support extension 4 is installed on the rotating shaft 3, and a support column 5 is detachably installed on the limiting support extension 4. Specifically, the bottom of the support column 5 is installed on the limiting extension 4 by snap-fit, and the top of the support column 5 supports the bottom of the inspection plate 1. To ensure a good support effect, the bottom of the inspection plate 1 can have a groove (not shown in the figure) that matches the upper end of the support column 5. When the inspection plate 1 is in the first position, the support column 5 limits the inspection plate 1 to prevent it from shaking.

[0042] When it is necessary to adjust to the second working position, disassemble the support column 5, rotate the inspection plate from the side close to the rotating shaft 3 to the side away from the rotating shaft 3 and gradually tilt it downwards. The support slope on the limiting support extension 4 contacts the bottom surface of the inspection plate 1 near the rotating shaft 3 and limits the inspection plate 1 to prevent the inspection plate 1 from moving relative to the bracket 2 during the inspection process.

[0043] In this embodiment, during operation: when it is necessary to inspect the torque gun at a certain workstation, the movable inspection auxiliary device is moved to the corresponding workstation.

[0044] Then, the tooling is fixed by locking the movable wheel 3 to ensure that the tooling will not move during the inspection process and to ensure the accuracy of the inspection.

[0045] Similar to existing technologies, a high-precision torque sensor is connected to the torque gun during the testing process. At the same time, it is ensured that the high-precision torque sensor communicates normally with the existing inspection software so that the measured torque data can be accurately transmitted to the software for analysis.

[0046] The user can adjust the position of the inspection plate 1 through the rotating shaft 3 according to the actual situation, and at the same time adjust the inspection plate 1 to the first or second station.

[0047] During the inspection process, the selection and operation of screws and bolts are as follows: Locate the type of bolt or screw to be inspected on inspection plate 1 and loosen it. Since inspection plate 1 has different types of bolts and screws and their corresponding threaded holes 101, different types of screws and bolts require inspection. Then, use a torque gun to pick up the bolt or screw and tighten it by aligning it with the corresponding threaded hole.

[0048] Data comparison and result judgment: After tightening, the high-precision torque sensor transmits the measured torque data to the inspection software, and compares the data of the high-precision torque sensor with the data of the torque gun to determine whether it is qualified.

[0049] In summary, this auxiliary device for torque gun inspection, through its reasonable structural design and optimized workflow, effectively solves the problems existing in current torque gun inspection, improves inspection efficiency and accuracy, and has good practicality and promotional value.

[0050] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0051] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Moreover, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature.

[0052] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An auxiliary device for torque gun inspection, characterized in that, Includes a bracket (2) and an inspection plate (1) mounted on the bracket (2). The inspection plate (1) has multiple sets of threaded holes (101), and the inner diameters of any two sets of threaded holes (101) are different. The inspection plate (1) is vertically rotatably mounted on the bracket (2). The inspection plate (1) is rotated to adjust the position of the threaded hole (101) relative to the bracket (2). The bracket (2) includes a support plate (201), and the inspection plate (1) is vertically rotatably mounted on the support plate (201) via a rotating shaft (3). An inspection interval is formed between the inspection plate (1) and the support plate (201). The inspection plate (1) has a first station and a second station relative to the support plate (201). When the inspection plate (1) is in the first station, the inspection plate (1) is in a horizontal state. When the inspection plate (1) is in the second station, the inspection plate (1) gradually tilts downward from the side close to the rotating shaft (3) to the side away from the rotating shaft (3).

2. The auxiliary device for torque gun inspection according to claim 1, characterized in that, The support plate (201) has a placement area for placing screws or bolts.

3. The auxiliary device for torque gun inspection according to claim 1, characterized in that, The bottom of the bracket (2) is provided with rollers (202).

4. The auxiliary device for torque gun inspection according to claim 1, characterized in that, The rotating shaft (3) is provided with a limiting support extension (4), which has a supporting slope. When the inspection plate (1) is in the second working position, the supporting slope contacts the bottom surface of the part of the inspection plate (1) near the rotating shaft (3) and limits the inspection plate (1).

5. The auxiliary device for torque gun inspection according to claim 4, characterized in that, The limiting support is detachably installed with a support column (5). When the inspection plate (1) is in the first working position, the support column (5) limits the inspection plate (1).

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