Gauge

Abstract

The application claims a detection tool, comprising a detection tool body, a plurality of positioning blocks, a cover plate and a plurality of detection pins, wherein the detection tool body comprises a bottom plate and a plurality of supporting seats, the plurality of supporting seats are installed on the bottom plate, and the plurality of supporting seats are used for abutting and limiting the target product at the same time, and are used for assembling and positioning the target product; the cover plate is separately arranged relative to the detection tool body, the cover plate can be placed on the plurality of positioning blocks and abut and limit the plurality of positioning blocks respectively, is used for covering and assembling the target product after positioning, and makes the cover plate assembled and positioned on the plurality of positioning blocks, wherein a plurality of detection holes are arranged on the cover plate, and the plurality of detection pins can be inserted and matched with corresponding positioning holes on the target product after passing through the corresponding detection holes respectively. In this way, the detection tool can be converted between the detection tool function and the measuring sample frame, the mechanism interference problem is avoided, the operation process is simplified, the detection efficiency is improved, and the detection cost can be effectively controlled.

Description

Technical Field

[0001] This utility model belongs to the technical field of product quality inspection, and in particular relates to an inspection tool. Background Technology

[0002] As electric vehicles increasingly demand faster and safer battery pack disconnection units, the battery disconnection unit base, as a critical component, faces stricter standards regarding dimensional accuracy, assembly compatibility with the battery pack disconnection unit, and overall structural strength. To ensure product quality, companies must use high-precision inspection tools to systematically test the key dimensions (such as mounting hole positions and mating surface tolerances), assembly clearances, and structural strength of the battery disconnection unit base. This verifies compliance with design specifications, prevents assembly failures or safety hazards due to dimensional deviations or insufficient strength, and ultimately ensures the reliability and durability of the battery pack disconnection unit under extreme operating conditions.

[0003] Currently, existing fixtures for testing battery disconnect unit bases typically use a flipping mechanism to control the opening and closing of the cover. When the cover is closed, a testing pin is inserted into the positioning hole on the cover to verify the matching of the positioning hole on the battery disconnect unit base. However, when performing coordinate measuring machine (CMM) testing on the battery disconnect unit base, this design is prone to interference between the flipping mechanism and the CMM mechanism, forcing companies to transfer the battery disconnect unit base to another fixture for subsequent testing. This fragmented testing process not only reduces efficiency and increases operational complexity but also increases testing costs due to the use of additional fixtures. Utility Model Content

[0004] In view of this, it is necessary to provide a gauge for solving the above-mentioned technical problems.

[0005] A gauge for inspecting a target product having multiple positioning holes; the gauge includes:

[0006] The main body of the inspection fixture includes a base plate and multiple support seats. The multiple support seats are mounted on the base plate, and the multiple support seats are used to abut and limit the target product for assembling and positioning the target product.

[0007] Multiple positioning blocks are disposed around the periphery of the multiple support seats and are respectively connected to the base plate, wherein each positioning block extends outward along the thickness direction of the base plate;

[0008] The cover plate is separately arranged from the main body of the inspection fixture. The cover plate can be placed flat on multiple positioning blocks and abut against and limit the multiple positioning blocks respectively. It is used to cover the target product after assembly and positioning, and to assemble and position the cover plate on multiple positioning blocks. The cover plate is provided with multiple detection holes, which correspond one-to-one with the multiple positioning holes.

[0009] Multiple detection pins correspond one-to-one with multiple detection holes, and the multiple detection pins can be inserted and engaged with the corresponding positioning holes on the target product after passing through the corresponding detection holes.

[0010] Understandably, the detachable structure of the split cover plate allows the gauge to be installed with the testing pins for compatibility verification when locating holes on the target product, while the cover plate can be removed for direct point marking during coordinate measuring machine (CMM) measurement. This allows the gauge to switch between gauge function and measurement stand, avoiding mechanical interference issues, simplifying the operation process, improving testing efficiency, effectively controlling testing costs, and providing operators with a more convenient and integrated testing experience.

[0011] In one embodiment, the plurality of positioning blocks includes at least two first positioning blocks, the at least two first positioning blocks being arranged on opposite sides of the cover plate;

[0012] Each of the first positioning blocks is provided with a positioning protrusion, and at least two of the positioning protrusions can be simultaneously inserted and engaged with the cover plate.

[0013] It is understandable that the positioning of the cover plate is achieved by using the interlocking fit between the positioning protrusions on the multiple first positioning blocks and the cover plate, so as to meet the usage requirements of using the inspection pins passing through the cover plate to inspect the positioning holes on the target product.

[0014] In one embodiment, the plurality of positioning blocks further includes a second positioning block, wherein each of the second positioning blocks has a fixing hole.

[0015] The fixture also includes a fixing member, which is provided corresponding to the fixing hole, and the fixing member can be connected to the corresponding fixing hole after passing through the cover plate to fix the cover plate.

[0016] It is understandable that the cover plate is fixed in place with fasteners to prevent it from shifting during subsequent testing and to ensure testing accuracy.

[0017] In one embodiment, the cover plate is provided with at least two handles, and the at least two handles are positioned away from the detection pin;

[0018] When the cover plate is placed flat on the plurality of positioning blocks, at least two of the handles are symmetrically arranged on the side of the cover plate away from the positioning blocks.

[0019] Understandably, the handle on the cover allows the operator to grip the cover, facilitating its installation and removal.

[0020] In one embodiment, the plurality of support bases includes at least two first support bases, each of which is provided with a positioning post, and at least two of the positioning posts can be simultaneously inserted and engaged with the target product.

[0021] It is understandable that by using the interlocking fit between the positioning posts on multiple first support bases and the target product, the assembly positioning of the target product when it is assembled on multiple support bases can be achieved, which creates conditions for subsequent inspection of the target product.

[0022] In one embodiment, the plurality of support bases further includes a second support base having a support plane formed thereon, the support plane being used to abut against and support the mounting surface of the target product.

[0023] Understandably, using the second support base with an auxiliary support plane to support the target product can further improve the stability of the target product during assembly and positioning.

[0024] In one embodiment, the fixture body further includes clamps mounted on the base plate for fixing the target product after assembly and positioning.

[0025] It is understandable that clamps are used to hold the target product in place to prevent it from shifting during subsequent testing and to ensure testing accuracy.

[0026] In one embodiment, a detection plate assembly is mounted on the base plate. The detection plate assembly is disposed around the periphery of the plurality of support seats and inside the plurality of positioning blocks, for clearance fitting with the outer contour of the target product after assembly and positioning.

[0027] It is understandable that by utilizing the gap between the inspection plate assembly and the outer contour of the target product, compliance inspection of the target product's outer contour can be achieved.

[0028] In one embodiment, the inspection fixture further includes a movable frame on which support rollers are provided;

[0029] The base plate is mounted on the mobile frame.

[0030] It is understandable that using a movable frame to support the base plate allows the fixture to be moved as needed, which further facilitates the operator's use of the fixture to inspect the target product.

[0031] In one embodiment, each of the detection pins is connected to the movable frame via a connecting rope.

[0032] It is understandable that the test pin is fixed to the mobile frame with a connecting rope. This retains the flexibility of accessing the test pin while preventing it from being accidentally lost during frequent insertion and removal or equipment movement through physical constraints.

[0033] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0034] The inspection fixture for which protection is sought in this application utilizes a detachable structure with a split cover plate. When inspecting positioning holes on the target product, the cover plate is installed to cooperate with the inspection pins for compatibility verification. However, during coordinate measuring machine (CMM) measurement, the cover plate is removed to directly perform point marking inspection. This allows the inspection fixture to switch between inspection fixture function and measurement sample holder, avoiding mechanical interference problems, simplifying the operation process, improving inspection efficiency, effectively controlling inspection costs, and providing operators with a more convenient and integrated inspection experience. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the structure of the inspection tool provided in this application when inspecting the target product.

[0037] Figure 2 for Figure 1 A schematic diagram of a local structure.

[0038] Figure 3 for Figure 2 Enlarged view of section A.

[0039] Figure 4 This is a structural diagram of the fixture body and positioning block during assembly in this application.

[0040] Figure 5 This is a schematic diagram of the cover plate in this application.

[0041] Reference numerals: 100, gauge; 10, gauge body; 11, base plate; 12, support base; 121, first support base; 1211, positioning post; 122, second support base; 1221, support plane; 13, clamp; 14, inspection plate assembly; 20, positioning block; 21, first positioning block; 211, positioning protrusion; 22, second positioning block; 221, fixing hole; 30, cover plate; 31, inspection hole; 32, handle; 40, inspection pin; 50, moving frame; 51, support roller; 101, fixing component; 200, target product; 201, positioning hole; 203, outer contour. Detailed Implementation

[0042] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] It should be noted that when a component is said to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or may have an intervening component.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0045] like Figure 1 , Figure 2 As shown, the inspection fixture 100 claimed in this application is used to inspect a target product 200, wherein the target product 200 has a plurality of positioning holes 201. Here, the target product 200 includes, but is not limited to, a battery disconnect unit base.

[0046] like Figures 1 to 5As shown, the inspection fixture 100 provided in this application includes a fixture body 10, a plurality of positioning blocks 20, a cover plate 30, and a plurality of inspection pins 40. The fixture body 10 includes a base plate 11 and a plurality of support seats 12. The plurality of support seats 12 are mounted on the base plate 11, and the plurality of support seats 12 are used to abut and limit the target product 200 for assembling and positioning the target product 200. The plurality of positioning blocks 20 are disposed around the plurality of support seats 12 and are respectively connected to the base plate 11, wherein each positioning block 20 extends outward along the thickness direction of the base plate 11; the cover plate 30 is opposite to... The inspection fixture 10 is divided into two parts. A cover plate 30 can be placed flat on multiple positioning blocks 20 and abuts against and limits the positioning of each block 20. This covers the assembled and positioned target product 200 and positions the cover plate 30 on the positioning blocks 20. The cover plate 30 has multiple detection holes 31, each corresponding to a positioning hole 201. Multiple detection pins 40 also correspond to the detection holes 31 and can be inserted into the corresponding positioning holes 201 on the target product 200 after passing through the corresponding detection holes 31. In other words, the inspection fixture 100 of this application detects whether the detection pins 40 can be inserted into the positioning holes 201 on the target product 200 after passing through the detection holes 31, thus achieving the purpose of inspecting the positioning holes 201 on the target product 200.

[0047] As can be seen from the above, the inspection fixture 100 of this application utilizes the detachable structure of the split cover plate 30, which allows the inspection fixture 100 to install the cover plate 30 and cooperate with the inspection pin 40 for compatibility verification when inspecting the positioning hole 201 on the target product 200. However, when performing coordinate measuring machine (CMM) measurement, the cover plate 30 can be removed to directly perform point marking inspection. This allows the inspection fixture 100 to switch between inspection fixture function and measurement sample holder, which avoids the problem of mechanism interference, simplifies the operation process, improves inspection efficiency, effectively controls inspection costs, and provides operators with a more convenient and integrated inspection experience.

[0048] like Figure 2 , Figure 4 As shown, in one embodiment, the plurality of support bases 12 include at least two first support bases 121, each of which is provided with a positioning post 1211. Furthermore, at least two positioning posts 1211 can simultaneously engage with the target product 200 to achieve assembly positioning of the target product 200 when assembled on the plurality of support bases 12. This creates conditions for subsequent inspection of the target product 200. Here, the number of first support bases 121 is configured to be two, and the positions of the two first support bases 121 can be adaptively set according to the positions of the corresponding insertion holes (not shown) on the target product 200. It is understood that in other embodiments, the number of first support bases 121 may also be three, four, or even more.

[0049] like Figure 2 , Figure 4 As shown, in one embodiment, the plurality of support seats 12 further includes a second support seat 122. A support plane 1221 is formed on the second support seat 122. The support plane 1221 is used to abut against and support the mounting surface (not shown) of the target product 200, so that the second support seat 122 can use the support plane 1221 to assist in supporting the target product 200, thereby further improving the stability of the target product 200 during assembly and positioning. Here, the number of second support seats 122 is three. It can be understood that in other embodiments, the number of second support seats 122 may also be one, two, etc. It should be noted that the mounting surface of the target product 200 specifically refers to the planar structure that abuts against the body sheet metal when the target product 200 is assembled on an electric vehicle.

[0050] like Figure 2 As shown, in one embodiment, the fixture body 10 further includes clamps 13, which are mounted on the base plate 11 and used to fix the assembled and positioned target product 200. That is, this embodiment can use the clamps 13 to fix the assembled and positioned target product 200, thus preventing displacement of the target product 200 during subsequent inspection operations and ensuring inspection accuracy. Here, there are three clamps 13. The fixing points and forces of the three clamps 13 when fixing the target product 200 can simulate the fixing effect experienced by the target product 200 when it is installed on the vehicle body, making the inspection process of the target product 200 closer to the actual vehicle body environment. It should be noted that the specific structure and working principle of the clamps 13 described above can adopt conventional methods of existing technology, and will not be elaborated here.

[0051] like Figure 2 , Figure 3 As shown, in one embodiment, a detection plate assembly 14 is mounted on the base plate 11. The detection plate assembly 14 is disposed around the periphery of multiple support seats 12 and located inside multiple positioning blocks 20. It is used to conform to the outer contour 203 of the target product 200 after assembly and positioning, so that the inspection fixture 100 can utilize the gap between the detection plate assembly 14 and the outer contour 203 of the target product 200 to perform compliance inspection on the outer contour 203 of the target product 200. Here, the detection plate assembly 14 is configured to conform to the outer contour 203 of the target product 200, and after the target product 200 is assembled and positioned, a preset gap is formed between the detection plate assembly 14 and the outer contour 203 of the target product 200. This allows the operator to perform inspection by passing contour measurement paper through the preset gap. It should be noted that the above-mentioned inspection method for inspecting whether the outer contour 203 of the target product 200 is compliant is a conventional method in the prior art and will not be elaborated here.

[0052] like Figure 2 , Figure 4 As shown, in one embodiment, the plurality of positioning blocks 20 includes at least two first positioning blocks 21, which are arranged on opposite sides of the cover plate 30. Each first positioning block 21 is provided with a positioning protrusion 211, and at least two positioning protrusions 211 can simultaneously engage with the cover plate 30. This enables the assembly positioning of the cover plate 30 on the plurality of positioning blocks 20, ensuring the accuracy of the assembly position of the cover plate 30 when assembled on the plurality of positioning blocks 20, so as to meet the subsequent use requirement of using a detection pin 40 passing through the cover plate 30 to detect the positioning hole 201 on the target product 200. Here, the number of first positioning blocks 21 is set to two. It can be understood that in other embodiments, the number of first positioning blocks 21 can also be set to three, four, or even more, which will not be elaborated here.

[0053] like Figure 2 , Figure 4 As shown, in one embodiment, the plurality of positioning blocks 20 further includes second positioning blocks 22, each of which has a fixing hole 221. The gauge 100 also includes a fixing member 101, which is correspondingly positioned to the fixing hole 221. The fixing member 101 can connect to the corresponding fixing hole 221 after passing through the cover plate 30 to fix the cover plate 30. This prevents the cover plate 30 from shifting during operation by the subsequent detection pin 40 and ensures detection accuracy. Specifically, the fixing hole 221 can be a threaded hole, and the fixing member 101 can be a bolt, screw, etc., using a threaded connection to achieve the connection of the fixing member 101 to the fixing hole 221. It should be noted that the number of the aforementioned second positioning blocks 22 is also two.

[0054] like Figure 5 As shown, in one embodiment, the cover plate 30 is provided with at least two handles 32, which are positioned away from the detection pin 40; and when the cover plate 30 is placed flat on the plurality of positioning blocks 20, at least two handles 32 are symmetrically arranged on the side of the cover plate 30 away from the positioning blocks 20, so that the operator can grasp the cover plate 30 through the handles 32, which facilitates the operator's disassembly and assembly of the cover plate 30.

[0055] like Figure 1 As shown, in one embodiment, the inspection fixture 100 further includes a movable frame 50, on which support rollers 51 are provided; and the base plate 11 is mounted on the movable frame 50. That is to say, in this embodiment, the movable frame 50 is used to support the base plate 11, so that the inspection fixture 100 can be moved as needed, which further facilitates the operator to use the inspection fixture 100 to inspect the target product 200.

[0056] In this embodiment, each detection pin 40 is connected to the movable frame 50 by a connecting rope (not shown). That is, the detection pin 40 in this embodiment can be fixed to the movable frame 50 by the connecting rope. This retains the flexibility of accessing the detection pin 40, and also prevents the detection pin 40 from accidentally falling off or being lost during frequent insertion and removal or equipment movement through physical constraints.

[0057] In summary, when inspecting the target product 200, the inspection fixture 100 of this application first aligns the insertion hole on the target product 200 with the positioning post 1211 on the first support 121 and places it onto the multiple support seats 12 on the base plate 11 to achieve assembly and positioning of the target product 200. Next, using the gap between the inspection plate assembly 14 and the outer contour 203 of the target product 200, the outer contour 203 of the target product 200 is inspected using contour measurement paper. Then, a cover plate 30 is placed on the assembled and positioned target product 200, and the inspection pin 40, passing through the inspection hole 31 on the cover plate 30, can be inserted into the corresponding positioning hole 201 on the target product 200 to check whether the positioning hole 201 on the target product 200 is qualified. Afterwards, the cover plate 30 is removed, and a three-coordinate measuring machine is used to perform three-coordinate measuring machine inspection on the target product 200.

[0058] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any appropriate changes and variations made to the above embodiments within the scope of the essential spirit of the present utility model shall fall within the scope of protection claimed by the present utility model.

Claims

1. A gauge for inspecting a target product (200), said target product (200) having a plurality of positioning holes (201); characterized in that, Inspection tool (100) includes: The main body (10) of the inspection fixture includes a base plate (11) and multiple support seats (12). The multiple support seats (12) are installed on the base plate (11), and the multiple support seats (12) are used to abut and limit the target product (200) for assembling and positioning the target product (200). Multiple positioning blocks (20) are disposed around the periphery of multiple support bases (12) and connected to the base plate (11) respectively, wherein each positioning block (20) extends outward along the thickness direction of the base plate (11); The cover plate (30) is separately set relative to the main body (10) of the inspection tool. The cover plate (30) can be placed flat on multiple positioning blocks (20) and abut against and limit the multiple positioning blocks (20) respectively. It is used to cover the target product (200) after assembly and positioning, and to assemble and position the cover plate (30) on multiple positioning blocks (20). The cover plate (30) is provided with multiple detection holes (31), and the multiple detection holes (31) are used to correspond one-to-one with the multiple positioning holes (201). Multiple detection pins (40) correspond one-to-one with multiple detection holes (31), and the multiple detection pins (40) can be inserted and engaged with the corresponding positioning holes (201) on the target product (200) after passing through the corresponding detection holes (31).

2. The inspection fixture according to claim 1, characterized in that, The plurality of positioning blocks (20) include at least two first positioning blocks (21), and the at least two first positioning blocks (21) are arranged on opposite sides of the cover plate (30); Each of the first positioning blocks (21) is provided with a positioning protrusion (211), and at least two of the positioning protrusions (211) can be simultaneously inserted into the cover plate (30).

3. The inspection fixture according to claim 1, characterized in that, The plurality of positioning blocks (20) further include a second positioning block (22), and the second positioning block (22) is provided with fixing holes (221); The fixture (100) further includes a fixing member (101), which is correspondingly provided with the fixing hole (221). The fixing member (101) can be connected to the corresponding fixing hole (221) after passing through the cover plate (30) to fix the cover plate (30).

4. The inspection fixture according to claim 1, characterized in that, The cover plate (30) is provided with at least two handles (32), and the at least two handles (32) are arranged to avoid the detection pin (40); When the cover plate (30) is placed flat on the plurality of positioning blocks (20), at least two of the handles (32) are symmetrically arranged on the side of the cover plate (30) away from the positioning blocks (20).

5. The inspection fixture according to claim 1, characterized in that, The plurality of support bases (12) include at least two first support bases (121), each of the first support bases (121) is provided with a positioning post (1211), and at least two of the positioning posts (1211) can be simultaneously inserted into the target product (200).

6. The inspection fixture according to claim 1, characterized in that, The plurality of support bases (12) further include a second support base (122) having a support plane (1221) formed thereon, the support plane (1221) being used to abut against and support the mounting surface of the target product (200).

7. The inspection fixture according to claim 1, characterized in that, The fixture body (10) also includes clamps (13), which are mounted on the base plate (11) for fixing the target product (200) after assembly and positioning.

8. The inspection fixture according to claim 1, characterized in that, A detection plate assembly (14) is installed on the base plate (11). The detection plate assembly (14) is located on the periphery of the plurality of support seats (12) and inside the plurality of positioning blocks (20), and is used to fit with the outer contour (203) of the target product (200) after assembly and positioning.

9. The inspection fixture according to claim 1, characterized in that, The inspection tool (100) also includes a movable frame (50) on which support rollers (51) are provided. The base plate (11) is mounted on the movable frame (50).

10. The inspection fixture according to claim 9, characterized in that, Each of the detection pins (40) is connected to the movable frame (50) by a connecting rope.

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