Annular welding seam testing fixture

Abstract

The utility model discloses an annular welding seam detection tool, comprising a seat body, the seat body is provided with a workpiece contact surface, the workpiece contact surface is provided with a welding seam accommodating groove, the groove bottom of the welding seam accommodating groove is provided with a workpiece adaptive hole, the hole wall of the workpiece adaptive hole and the groove side wall of the welding seam accommodating groove are arranged at an interval, and the outer wall of the seat body is provided with an observation gap. The observation notch is communicated with the weld joint containing groove. When the circumferential weld needs to be detected, the sleeve in the workpiece penetrates through the workpiece adaptive hole, the workpiece contact surface of the seat body is close to the substrate of the workpiece as much as possible, the circumferential weld enters the weld accommodating groove at the moment, and if the workpiece contact surface can completely contact with the substrate of the workpiece, the size of the circumferential weld can be directly known to be qualified; if the contact surface of the workpiece cannot be in complete contact with the substrate of the workpiece, production personnel can observe whether the width or height of the welding seam is abnormal or not through the observation notch, and after detection is completed, the annular welding seam detection tool is separated from the workpiece.

Description

Technical Field

[0001] The utility model relates to the field of battery production, and particularly to a circular weld detector. Background Art

[0002] In some components of the existing battery module, including a substrate and a sleeve passing through the substrate, the substrate and the sleeve are fixedly connected by welding, and the weld is circular. Since during the subsequent assembly process of the battery module, if the weld size is too large, interference is likely to occur. Therefore, it is necessary to detect whether the weld size is qualified after the substrate and the sleeve are welded. There is a method of detecting the circular weld size by circular scanning, however, the detection method is relatively complex and the detection cost is relatively high. Content of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a circular weld detector, which can detect the circular weld size relatively simply and has a relatively low detection cost.

[0004] The circular weld detector according to an embodiment of the utility model includes a seat body. The seat body is provided with a workpiece contact surface. The workpiece contact surface is provided with a weld accommodating groove. The bottom of the weld accommodating groove is provided with a workpiece fitting hole. The hole wall of the workpiece fitting hole is spaced from the groove side wall of the weld accommodating groove. An observation notch is formed in the outer wall of the seat body, and the observation notch communicates with the weld accommodating groove.

[0005] The circular weld detector according to an embodiment of the utility model has at least the following beneficial effects: When it is necessary to detect a circular weld, the sleeve in the workpiece is passed through the workpiece fitting hole, and the workpiece contact surface of the seat body is made to approach the substrate of the workpiece as much as possible. At this time, the circular weld enters the weld accommodating groove. If the workpiece contact surface can completely contact the substrate of the workpiece, it can be directly known that the circular weld size is qualified; if the workpiece contact surface cannot completely contact the substrate of the workpiece, the production personnel can observe whether the width or height of the weld is abnormal through the observation notch. After the detection is completed, the circular weld detector is separated from the workpiece, so that the circular weld size can be detected relatively simply without using complex equipment to detect the circular weld, and the detection cost is relatively low.

[0006] According to some embodiments of the utility model, the axis of the workpiece fitting hole is perpendicular to the workpiece contact surface.

[0007] According to some embodiments of the utility model, the observation notch penetrates through to the hole wall of the workpiece fitting hole.

[0008] According to some embodiments of the utility model, the seat body is provided with a first side wall and a second side wall, and the observation notch is formed between the first side wall and the second side wall, and the first side wall and the second side wall are perpendicular to each other.

[0009] According to some embodiments of the present utility model, the workpiece fitting hole is a circular through-hole, and the weld accommodating groove is a circular groove.

[0010] According to some embodiments of the present utility model, the distance between the groove side wall of the weld accommodating groove and the hole wall of the workpiece fitting hole is uniformly arranged along the direction around the hole axis of the workpiece fitting hole.

[0011] According to some embodiments of the present utility model, the seat body is provided with two workpiece contact surfaces and two weld accommodating grooves. The two workpiece contact surfaces are respectively located on opposite sides of the seat body. The workpiece fitting hole is a through-hole, and both ends of the workpiece fitting hole are respectively communicated with the bottom walls of the two weld accommodating grooves.

[0012] According to some embodiments of the present utility model, the weld accommodating groove is a circular groove, and the depths and / or radii of the two weld accommodating grooves are different.

[0013] According to some embodiments of the present utility model, a magnet is provided on the outer side of the seat body.

[0014] According to some embodiments of the present utility model, an avoidance groove is provided in a partial area of the hole wall of the workpiece fitting hole.

[0015] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0016] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, where:

[0017] Figure 1 is a three-dimensional schematic diagram of the annular weld inspection tool according to the embodiment of the present utility model;

[0018] Figure 2 is a three-dimensional schematic diagram of the annular weld inspection tool according to the embodiment of the present utility model installed on a workpiece;

[0019] Figure 3 is a sectional schematic diagram in the A-A direction of the Figure 2 of the embodiment of the present utility model.

[0020] Reference Signs:

[0021] Seat body 100, workpiece contact surface 110, weld accommodating groove 120, groove side wall 121, workpiece fitting hole 130, hole wall 131, observation notch 140, first side wall 150, second side wall 160, avoidance groove 170;

[0022] Magnet 200;

[0023] Workpiece 300, substrate 310, sleeve 320, circumferential weld 330;

[0024] The distance between the groove side wall of the weld accommodating groove and the hole wall of the workpiece fitting hole is B. Detailed implementation manners

[0025] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as up and down, etc., is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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 thus should not be construed as a limitation to the present utility model.

[0027] In the description of the present utility model, "a plurality of" refers to more than two. If there is a description of first and second, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0028] In the description of the present utility model, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0029] Refer to Figures 1 to 3 , which is a circumferential weld inspection tool for the embodiment of the present utility model, including a seat body 100. The seat body 100 is provided with a workpiece contact surface 110. The workpiece contact surface 110 is provided with a weld accommodating groove 120. The bottom of the weld accommodating groove 120 is provided with a workpiece fitting hole 130. The hole wall 131 of the workpiece fitting hole 130 and the groove side wall 121 of the weld accommodating groove 120 are spaced apart. An observation notch 140 is formed on the outer wall of the seat body 100, and the observation notch 140 communicates with the weld accommodating groove 120.

[0030] When it is necessary to detect the circumferential weld 330, the sleeve 320 in the workpiece 300 is passed through the workpiece adaptor hole 130, and the workpiece contact surface 110 of the seat body 100 is brought as close as possible to the substrate 310 of the workpiece 300. At this time, the circumferential weld 330 enters the weld accommodation groove 120. If the workpiece contact surface 110 can completely contact the substrate 310 of the workpiece 300, it can be directly known that the size of the circumferential weld 330 is qualified; if the workpiece contact surface 110 cannot completely contact the substrate 310 of the workpiece 300, the production personnel can observe whether the width or height of the weld is abnormal by observing the notch 140. After the detection is completed, the circumferential weld detector is separated from the workpiece 300, so that the size of the circumferential weld 330 can be detected relatively simply, without complex equipment to detect the circumferential weld 330, and the detection cost is relatively low. It can be understood that if the workpiece contact surface 110 cannot completely contact the substrate 310 of the workpiece 300, there is a problem that the width or height of the circumferential weld 330 is unqualified. At this time, the relative position between the circumferential weld 330 and the weld accommodation groove 120 can be observed through the notch 140 to judge whether it is the cross-sectional width or the cross-sectional height that is abnormal, and the production process can be corrected in a timely manner accordingly.

[0031] Furthermore, when the workpiece contact surface 110 can completely contact the substrate 310 of the workpiece 300, the user can also directly see that the circumferential weld 330 is completely located in the weld accommodation groove 120 through the notch 140, and can directly see the clearance margin between the circumferential weld 330 and the groove wall of the weld accommodation groove 120 through the notch 140, so as to simply and quickly judge the size of the circumferential weld 330, and thus know the welding effect of the workpiece 300.

[0032] In the embodiment, the axis of the workpiece adaptor hole 130 is perpendicular to the workpiece contact surface 110. In this embodiment, the sleeve 320 of the workpiece 300 is perpendicular to the substrate 310 of the workpiece 300. The above structure meets the use in actual processing, is simple in structure and easy to implement. It can be imagined that in other embodiments, if the sleeve 320 of the workpiece 300 is not perpendicular to the substrate 310 of the workpiece 300, the axis of the corresponding workpiece adaptor hole 130 can also be non-perpendicular to the workpiece contact surface 110, and those skilled in the art can configure it according to actual needs.

[0033] In an embodiment, the observation notch 140 penetrates through to the hole wall 131 of the workpiece fitting hole 130. For the above structure, the processing method is simple. It is only necessary to process the observation notch 140 on the entire seat body 100. Specifically, the observation notch 140 in this embodiment penetrates through the opposite sides of the seat body 100 along the hole axis direction of the workpiece fitting hole 130, and the observation notch 140 also penetrates through to the workpiece fitting hole 130. It can be understood that in some embodiments, the observation notch 140 may also be only opened at a partial position of the seat body 100, as long as it is communicated with the weld accommodating groove 120. At this time, the position and dimension relationship between the weld accommodating groove 120 and the circular weld 330 can be seen through the observation notch 140.

[0034] In an embodiment, the seat body 100 is provided with a first side wall 150 and a second side wall 160. An observation notch 140 is formed between the first side wall 150 and the second side wall 160, and the first side wall 150 and the second side wall 160 are perpendicular to each other. The above observation notch 140 has a right-angled shape, which is convenient for machining by a machining method. When the first side wall 150 and the second side wall 160 are perpendicular, the observation notch 140 can be directly machined in one pass by a vertical milling cutter to form the first side wall 150 and the second side wall 160. It can be imagined that the first side wall 150 and the second side wall 160 can also be at other angles. For example, the included angle between the two can be between 30° and 180°, such as 45°, 60°, 75°, 105°, 120°, 135°, 150° or 165°, etc.

[0035] In an embodiment, the workpiece fitting hole 130 is a circular through hole, and the weld accommodating groove 120 is a circular groove. Since in this embodiment, the sleeve 320 of the workpiece 300 is a circular sleeve 320, the corresponding weld is also a circular weld, which is adapted to the structure of the conventional workpiece 300. It can be understood that the shape of the workpiece fitting hole 130 should be adapted to the outer shape of the sleeve 320 of the workpiece 300. That is, if the sleeve 320 of the workpiece 300 is an elliptical sleeve 320, the workpiece fitting hole 130 should also be an elliptical hole at this time; if the outer shape of the sleeve 320 of the workpiece 300 is a polygon, the workpiece fitting hole 130 should also be a polygon hole at this time.

[0036] Specifically, the cross-sectional dimension of the workpiece fitting hole 130 is close to that of the sleeve 320 of the workpiece 300. When the seat body 100 is sleeved on the workpiece 300, the position of the seat body 100 can be restricted by the workpiece 300 to avoid the shaking of the circular weld inspection tool, thereby making the detection accuracy better.

[0037] In the embodiment, the distance between the groove side wall 121 of the weld accommodating groove 120 and the hole wall 131 of the workpiece adapting hole 130 is uniformly set along the hole axis direction surrounding the workpiece adapting hole 130. The space between the groove side wall 121 of the weld accommodating groove 120 and the hole wall 131 of the workpiece adapting hole 130 is used to accommodate the weld. Generally, the cross-sectional size requirements of the annular weld 330 should be the same everywhere along the annular trajectory. Therefore, the distance between the groove side wall 121 of the weld accommodating groove 120 and the hole wall 131 of the workpiece adapting hole 130 is uniformly set along the hole axis direction surrounding the workpiece adapting hole 130, which can be used to detect whether the cross sections of the annular weld 330 meet the size requirements at the same time and meet better detection standards.

[0038] In the embodiment, the seat body 100 is provided with two workpiece contact surfaces 110 and two weld accommodating grooves 120, the two workpiece contact surfaces 110 are respectively located on opposite sides of the seat body 100, the workpiece adapter hole 130 is a through hole, and the two ends of the workpiece adapter hole 130 are respectively connected to the bottom walls of the two weld accommodating grooves 120. The above-mentioned annular weld inspection fixture allows production personnel to select any workpiece contact surface 110 and the corresponding weld accommodating groove 120 for use, and the flexibility of use is better; and when a certain weld accommodating groove 120 is severely worn, the workpiece contact surface 110 and the weld accommodating groove 120 on the other side can be used to detect the annular weld 330, thereby improving the service life of the inspection fixture.

[0039] In some embodiments, the weld receiving groove 120 is a circular groove, and the depth and radius of the two weld receiving grooves 120 are different. Usually, the size of the weld can vary according to different welding requirements and standards. The size of the weld includes the weld height and width, and the standards of these dimensions can be adjusted according to the specific welding process, welding materials and welding parts. The depth and radius of the two weld receiving grooves 120 in an annular weld gauge are different, that is, an annular weld gauge can be used to detect the sizes of two annular welds 330 with different specifications, without the need to separately produce two gauges with weld receiving grooves 120 of different sizes, thereby saving materials and reducing material costs.

[0040] Specifically, in this embodiment, the depths and radii of the two weld accommodating grooves 120 are different. One of the weld accommodating grooves 120 has a smaller depth and radius and is used to detect annular welds 330 with small cross-sectional sizes. The other weld accommodating groove 120 has a larger depth and radius and is used to detect annular welds 330 with large sizes.

[0041] It is understandable that in other implementations, the two weld receiving grooves 120 may differ only in depth or only in radius, and those skilled in the art may configure the two weld receiving grooves 120 according to actual needs.

[0042] Further, markings can be made on the workpiece contact surface 110 to indicate the depth and radius of the corresponding weld accommodating groove 120, so as to prevent production personnel from misusing the two weld accommodating grooves 120.

[0043] It can be understood that in some embodiments, the depths and radii of the two weld accommodating grooves 120 can also be the same, and those skilled in the art can configure them specifically according to actual needs.

[0044] In an embodiment, a magnet 200 is provided on the outer side of the base body 100. When the annular weld detector is not in use, the magnet 200 can be used to temporarily adsorb and fix the annular weld detector at a designated position. For example, an iron sheet is fixedly arranged on a desktop, so as to prevent the annular weld detector from falling and being damaged, and reduce the risk of the annular weld detector being lost.

[0045] Specifically, the magnet 200 is arranged at the workpiece contact surface 110 of the annular weld detector. The magnet 200 can be provided in one, two, three or more numbers, and those skilled in the art can configure them specifically according to actual needs.

[0046] Specifically, mounting holes are formed at the workpiece contact surface 110, the magnet 200 is embedded in the mounting holes, and the magnet 200 is fixedly connected to the base body 100 by means of adhesion.

[0047] In an embodiment, an avoidance groove 170 is provided in a partial area of the hole wall 131 of the workpiece fitting hole 130. Since the annular weld detector needs to frequently detect different workpieces 300, that is, the sleeves 320 of different workpieces 300 need to be inserted into and pulled out of the workpiece fitting hole 130. Therefore, if the direct contact area between the workpiece fitting hole 130 and the sleeve 320 of the workpiece 300 is too large, a relatively large force is required to complete the cooperation or disassembly between the workpiece 300 and the detector. Therefore, providing the avoidance groove 170 in a partial area of the hole wall 131 of the workpiece fitting hole 130 can reduce the direct contact and friction area between the workpiece fitting hole 130 and the workpiece 300, that is, can reduce the friction force when the workpiece 300 is assembled with and disassembled from the annular weld detector, and reduce the labor intensity of production personnel.

[0048] Specifically, the avoidance groove 170 is provided in the middle hole wall 131 of the workpiece fitting hole 130, which can reduce the friction with the workpiece 300, and the two end hole walls 131 of the workpiece fitting hole 130 can match the workpiece 300 to maintain a good cooperation effect.

[0049] Specifically, for the annular weld detector in this embodiment, the outer shape of the base body 100 is cylindrical, which is convenient for production personnel to hold and use. It can be imagined that the outer shape of the base body 100 can also be other shapes, such as square-shaped, etc.

[0050] In an embodiment, the base body 100 can be made of a metal material, making the circular weld detector sturdy, durable, and not easily damaged. It can be imagined that the base body 100 can also be made of a plastic material, such as acrylic plastic, etc. When made of acrylic plastic, the permeability of the circular weld detector can be improved, facilitating production personnel to observe the dimensional relationship between the weld receiving groove 120 and the circular weld 330.

[0051] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0052] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A circular weld inspection tool, characterized in that Including: A base body (100) is provided with a workpiece contact surface (110). The workpiece contact surface (110) is provided with a weld accommodating groove (120). The bottom of the weld accommodating groove (120) is provided with a workpiece fitting hole (130). The hole wall (131) of the workpiece fitting hole (130) is spaced from the groove side wall (121) of the weld accommodating groove (120). An observation notch (140) is formed on the outer wall of the base body (100), and the observation notch (140) communicates with the weld accommodating groove (120).

2. The circular weld inspection tool according to claim 1, wherein: The hole axis of the workpiece fitting hole (130) is perpendicular to the workpiece contact surface (110).

3. The circular weld inspection tool according to claim 1, wherein: The observation notch (140) penetrates through to the hole wall (131) of the workpiece fitting hole (130).

4. The annular weld inspection tool according to claim 3, characterized in that: The base body (100) is provided with a first side wall (150) and a second side wall (160). The observation notch (140) is formed between the first side wall (150) and the second side wall (160), and the first side wall (150) and the second side wall (160) are perpendicular to each other.

5. The circular weld inspection fixture according to claim 1, characterized in that: The workpiece fitting hole (130) is a circular through hole, and the weld accommodating groove (120) is a circular groove.

6. The circular weld inspection tool according to claim 1, wherein: The distance between the groove side wall (121) of the weld accommodating groove (120) and the hole wall (131) of the workpiece fitting hole (130) is uniformly arranged along the direction around the hole axis of the workpiece fitting hole (130).

7. The circular weld inspection tool according to claim 1, characterized in that: The base body (100) is provided with two workpiece contact surfaces (110) and two weld accommodating grooves (120). The two workpiece contact surfaces (110) are respectively located on opposite sides of the base body (100). The workpiece fitting hole (130) is a through hole, and the two ends of the workpiece fitting hole (130) respectively communicate with the bottom walls of the two weld accommodating grooves (120).

8. The circular weld inspection tool according to claim 7, wherein: The weld accommodating groove (120) is a circular groove, and the depths and / or radii of the two weld accommodating grooves (120) are different.

9. The annular weld inspection tool according to claim 1, wherein: A magnet (200) is arranged on the outer side of the base body (100).

10. The annular weld inspection tool according to claim 1, characterized in that: A clearance groove (170) is arranged in a partial area of the hole wall (131) of the workpiece fitting hole (130).

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