A white body parts matching and measuring fixture

Abstract

This utility model discloses a measuring fixture for matching body-in-white parts, belonging to the field of automotive technology. It includes: a support base with a groove on its upper part and a baffle at the left end of the groove; a slider whose bottom slides along the groove, with a connecting block mounting hole at its left end and its right end extending out of the groove and connected to a body-in-white part; a position adjustment mechanism whose middle part passes through the baffle and extends into the connecting block mounting hole, with a connecting block connected to its right end, the connecting block being positioned within the mounting hole, and both ends of the connecting block abutting against the inner surface of the mounting hole; and a shim positioned between the baffle and the left end of the slider. This utility model enables rapid measurement of interference at the zero-fitting points of overlapping parts, facilitating matching analysis. It is widely applicable to matching body-in-white parts for different vehicle models, is easy to use, and highly practical.

Description

Technical Field

[0001] This utility model relates to the field of automotive technology, and in particular to a measuring fixture for matching body-in-white parts. Background Technology

[0002] In the automotive production preparation process, the body-in-white matching fixture (a specialized measuring fixture used to confirm the matching relationships between body parts) is crucial for ensuring the accuracy of body dimensions. It achieves the target dimensional accuracy by improving the matching of body parts, processes, and tooling. The body-in-white matching process is complex and cumbersome, involving multiple levels of matching, including individual parts, sub-assemblies, assemblies, and the entire vehicle. All aspects of the adaptive verification of body-in-white dimensional matching require matching to be performed on the body-in-white matching fixture.

[0003] Currently, most existing body-in-white matching tooling reference surfaces use a single support structure. While this structure provides support and positioning, and verifies the accuracy and fit of parts, it requires measuring equipment to measure interference between parts. Although articulated arm coordinate measuring machines (CMMs) offer greater precision, they are limited by site and environmental constraints, resulting in long measurement times and hindering rapid identification. Adding a support structure for on-site measurement could lead to numerous single sliders in the matching tooling, making switching difficult and increasing costs.

[0004] Therefore, in actual production, it is necessary to design a measurement fixture that can be flexibly switched without affecting the overall layout of the body-in-white matching fixture, and can meet the matching requirements, so as to achieve a rapid judgment on the fit of parts. Utility Model Content

[0005] The purpose of this utility model is to provide a white body parts matching and measuring fixture, which is original in terms of the convenience of interference measurement, installation and adjustment. It can quickly measure the interference at the joint of parts, thereby improving the accuracy and efficiency of body matching.

[0006] This utility model provides the following solution:

[0007] Firstly, this application describes a white body parts matching and measuring fixture, comprising:

[0008] A support base, wherein a sliding groove is provided on the upper part of the support base and a baffle is provided at the left end of the sliding groove;

[0009] A slider, the bottom of which slides along the groove, a connecting block mounting hole is provided at the left end of the slider, and the right end of the slider extends out of the groove and is connected to a body-in-white part;

[0010] A position adjustment mechanism, wherein the middle part of the position adjustment mechanism passes through the baffle and extends into the connecting block mounting hole, and a connecting block is connected to the right end of the position adjustment mechanism. The connecting block is disposed in the connecting block mounting hole, and both the left and right ends of the connecting block abut against the inner side of the connecting block mounting hole.

[0011] A gasket is disposed between the baffle and the left end of the slider.

[0012] Preferably, a groove is provided on the left side of the connecting block mounting hole, and the position adjustment mechanism extends into the connecting block mounting hole through the groove.

[0013] Preferably, the position adjustment mechanism includes:

[0014] An adjusting handle and a threaded rod installed at the right end of the adjusting handle, the middle part of the threaded rod being screwed into a threaded hole in the baffle, and the right end of the threaded rod passing through the groove and being screwed into the connecting block.

[0015] Preferably, a nut is also screwed onto the threaded rod, and the nut is located between the adjusting handle and the baffle.

[0016] Preferably, the lower end face of the gasket abuts against the groove, and the bottom center of the gasket is provided with a clearance groove for the threaded rod to pass through.

[0017] Preferably, the bottom of the slide groove is provided with a fastener mounting hole, and the middle of the slider is provided with a fastener through hole, through which the fastener is mounted on the fastener mounting hole.

[0018] Preferably, the fastener through hole is an elongated hole extending in the left-right direction, and the fastener is a wing bolt.

[0019] Preferably, the bottom of the support base is provided with positioning holes and fixing bolt mounting holes.

[0020] This utility model has the following advantages compared with the prior art:

[0021] 1. This application can quickly measure the interference at the joint of overlapping parts, which is beneficial for matching analysis and provides a basis for manual repair of parts. It can be widely used for matching body-in-white parts of different models, is easy to use and highly practical.

[0022] 2. This application uses a position adjustment mechanism to drive the slider to move and uses a butterfly bolt to lock and fix it, which makes the operation flexible and the adjustment accuracy higher. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of the white body parts matching and measuring fixture of this utility model;

[0025] Figure 2 This is a structural diagram of the present invention without fasteners;

[0026] Figure 3 This is a top view of the support base of this utility model;

[0027] Figure 4 This is a schematic diagram of the slider and gasket of this utility model;

[0028] Figure 5 This is a schematic diagram showing the positions of the positioning holes and fixing bolt mounting holes of the support base of this utility model.

[0029] In the picture:

[0030] 1. Support base; 11. Slide groove; 12. Fastener mounting hole; 13. Baffle; 14. Positioning hole; 15. Fixing bolt mounting hole; 2. Slider; 21. Connecting block mounting hole; 22. Fastener through hole; 23. Groove; 3. Position adjustment mechanism; 31. Adjustment handle; 32. Threaded rod; 33. Nut; 4. Connecting block; 5. Washer; 51. Clearance groove; 6. Fastener. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the application. The singular forms “a,” “said,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms, and “multiple” generally includes at least two unless the context clearly indicates otherwise.

[0033] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0034] It should be understood that although the terms first, second, third, etc., may be used in the embodiments of this application, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, first may also be referred to as second without departing from the scope of the embodiments of this application, and similarly, second may also be referred to as first.

[0035] Depending on the context, the words “if” or “suppose” as used here can be interpreted as “when” or “in response to determination” or “in response to detection.” Similarly, depending on the context, the phrases “if determination” or “if detection (of the stated condition or event)” can be interpreted as “when determination” or “in response to determination” or “when detection (of the stated condition or event)” or “in response to detection (of the stated condition or event).”

[0036] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device that includes said element.

[0037] It should be noted that any symbols and / or numbers present in the specification that are not marked in the accompanying drawings are not reference numerals.

[0038] Example 1

[0039] See Figure 1-5 As shown in the figure, this application embodiment provides a white body parts matching and measurement fixture, including:

[0040] Support base 1, with a sliding groove 11 on the upper part of the support base 1, and a baffle 13 on the left end of the sliding groove 11;

[0041] Slider 2, the bottom of slider 2 slides along slide groove 11, slider 2 has a connecting block mounting hole 21 at the left end, and slider 2 extends out of slide groove 11 at the right end and is connected to body-in-white parts.

[0042] The position adjustment mechanism 3 passes through the baffle 13 and extends into the connecting block mounting hole 21. The right end of the position adjustment mechanism 3 is connected to the connecting block 4, which is set in the connecting block mounting hole 21. Both the left and right ends of the connecting block 4 abut against the inner side of the connecting block mounting hole 21.

[0043] Shim 5 is disposed between baffle 13 and the left end of slider 2.

[0044] The position adjustment mechanism 3 drives the connecting block 4 inside the slider 2 to move in the left and right direction, so that the slider 2 slides in the left and right direction in the slide groove 11. By placing shims 5 of different thicknesses between the baffle 13 and the left end of the slider 2, the distance of movement of the slider 2 can be precisely adjusted, so as to achieve precise movement of the white body parts connected to the right end of the slider 2.

[0045] See Figure 2 A groove 23 is provided on the left side of the connecting block mounting hole 21, and the position adjustment mechanism 3 extends into the connecting block mounting hole 21 through the groove 23.

[0046] A groove 23 is made on the left side wall of the connecting block mounting hole 21. The groove 23 passes through the connecting block mounting hole 21 and the left end of the slider 2. A protective sleeve is fixedly installed in the middle of the position adjustment mechanism 3 at the position corresponding to the groove 23. The groove 23 is in direct contact with the protective sleeve, which provides a certain support for the position adjustment mechanism 3 and ensures that the position adjustment mechanism 3 moves the slider 2 more smoothly.

[0047] See Figure 2 As shown, the position adjustment mechanism 3 includes:

[0048] Adjustment handle 31 and threaded rod 32 installed on the right end of adjustment handle 31. The middle part of threaded rod 32 is screwed into the threaded hole opened in baffle 13, and the right end of threaded rod 32 passes through groove 23 and is screwed into connecting block 4.

[0049] The right end of the threaded rod 32 is screwed to the connecting block 4, thereby achieving a fixed connection with the slider 2 where the connecting block 4 is located. The threaded rod 32 is screwed to the threaded hole opened on the baffle 13. When in use, rotating the adjusting handle 31 will drive the threaded rod 32 to move left and right, thereby driving the slider 2 to move left and right.

[0050] See Figure 2 As shown, a nut 33 is also screwed onto the threaded rod 32, and the nut 33 is located between the adjusting handle 31 and the baffle 13. The nut 33 is placed between the adjusting handle 31 and the baffle 13 to prevent the baffle 13 and the adjusting handle 31 from colliding directly when the adjusting handle 31 is rotated.

[0051] See Figure 1 , 4As shown, the lower end face of the gasket 5 abuts against the slide groove 11, and the bottom center of the gasket 5 is provided with a clearance groove 51 for the threaded rod 32 to pass through. The lower end face of the gasket 5 abuts against the upper end face of the slide groove 11 to prevent the gasket 5 from falling off during use. The clearance groove 51 provides space for the threaded rod 32 to ensure that the threaded rod 32 can pass through the gasket 5 normally and drive the connecting block 4 to move.

[0052] See Figure 1 , 2 As shown in Figures 3 and 4, the bottom of the slide groove 11 is provided with a fastener mounting hole 12, and the middle of the slider 2 is provided with a fastener through hole 22. The fastener 6 passes through the fastener through hole 22 and is installed on the fastener mounting hole 12.

[0053] The fastener 6 has an external thread at its bottom and an internal thread in the fastener mounting hole 12. When the slider 2 moves to the desired position, the fastener 6 passes through the fastener through hole 22 and is tightened onto the fastener mounting hole 12, thereby further fixing the slider 2 and improving measurement accuracy.

[0054] See Figure 1 , 2 As shown in Figures 3 and 4, the fastener through hole 22 is an elongated hole extending in the left-right direction, and the fastener 6 is a wing bolt. The fastener through hole 22 on the slider 2 for the wing bolt to pass through is designed as an elongated oval hole. The elongated oval hole structure allows the slider 2 to move within a certain range while ensuring the fixing accuracy of the slider 2. The fastener 6 is a wing bolt. The design of the wing bolt allows the operator to quickly connect or separate the slider 2 from the support base 1, improving work efficiency.

[0055] See Figure 5 As shown, the bottom of the support base 1 is provided with positioning holes 14 and fixing bolt mounting holes 15. The positioning holes 14 enable the support base 1 to be better positioned and installed in the required position, ensuring that the support base 1 will not shift when using this fixture.

[0056] Furthermore, the connecting block 4 is cylindrical, and the left and right end faces of the connecting block 4 are the bottom surfaces of the cylinder.

[0057] The working principle of this utility model is as follows:

[0058] First, place the two parts A and B, which meet the dimensions in the drawing, according to the process requirements, and put them into this fixture. For example, if parts A and B have an overlapping relationship, then the sliders 2 of the two fixtures connected to parts A and B are both in contact with the baffle 13, without adding the shim 5. Check the fit at the overlapping joint. If there is a gap at the overlapping joint, it can be measured directly with a feeler gauge or wedge gauge. If there is no gap at the overlapping joint, it cannot be determined whether the two parts are completely mated or if there is interference. If there is interference, the amount of interference at the mating joint cannot be directly detected.

[0059] When checking the interference, rotate the threaded rod 32 of the fixture containing part A to create distance between the baffle 13 and the slider 2, allowing the shim 5 to fit. Rotate the threaded rod 32 in the opposite direction to ensure a tight fit between the baffle 13, slider 2, and shim 5. The fixture for part B does not include the shim 5. In this case, the gap at the overlap of parts A and B should be the same as the thickness of the shim 5. Measure the gap at the overlap with a wedge gauge and subtract it from the thickness of the shim 5. If the subtraction result is close to 0, the overlap accuracy of the parts is good; if the subtraction result is less than 0, it indicates interference between the two parts, and the difference is the interference at the overlap.

[0060] This fixture allows for rapid measurement of interference at the contact points of overlapping components, facilitating matching analysis and providing a basis for manual repair. This structure is widely applicable to body-in-white matching for various vehicle models, is easy to use, and highly practical.

[0061] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the systems or apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple, and relevant parts can be referred to the method section.

[0062] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A measuring fixture for matching body-in-white parts, characterized in that, include: A support base (1) is provided with a sliding groove (11) on the upper part, and a baffle (13) is provided at the left end of the sliding groove (11); The slider (2) slides along the groove (11) at its bottom. The left end of the slider (2) is provided with a connecting block mounting hole (21). The right end of the slider (2) extends out of the groove (11) and is connected to a body-in-white part. The position adjustment mechanism (3) passes through the baffle (13) and extends into the connecting block mounting hole (21) in the middle. The right end of the position adjustment mechanism (3) is connected to a connecting block (4). The connecting block (4) is set in the connecting block mounting hole (21). Both the left and right ends of the connecting block (4) abut against the inner side of the connecting block mounting hole (21). A gasket (5) is disposed between the baffle (13) and the left end of the slider (2).

2. The white body parts matching and measuring fixture according to claim 1, characterized in that, A groove (23) is provided on the left side of the connecting block mounting hole (21), and the position adjustment mechanism (3) extends into the connecting block mounting hole (21) through the groove (23).

3. The white body parts matching and measuring fixture according to claim 2, characterized in that, The position adjustment mechanism (3) includes: Adjustment handle (31) and threaded rod (32) installed on the right end of adjustment handle (31), the middle part of threaded rod (32) is screwed to the threaded hole opened in the baffle (13), and the right end of threaded rod (32) passes through the groove (23) and is screwed to the connecting block (4).

4. The white body parts matching and measuring fixture according to claim 3, characterized in that, A nut (33) is also screwed onto the threaded rod (32), and the nut (33) is located between the adjusting handle (31) and the baffle (13).

5. The white body parts matching and measuring fixture according to claim 3, characterized in that, The lower end face of the gasket (5) abuts against the slide groove (11), and the bottom center of the gasket (5) is provided with a clearance groove (51) for the threaded rod (32) to pass through.

6. The white body parts matching and measuring fixture according to claim 1, characterized in that, The bottom of the slide groove (11) is provided with a fastener mounting hole (12), and the middle of the slider (2) is provided with a fastener through hole (22). The fastener (6) passes through the fastener through hole (22) and is installed on the fastener mounting hole (12).

7. The white body parts matching and measuring fixture according to claim 6, characterized in that, The fastener through hole (22) is an elongated hole extending in the left-right direction, and the fastener (6) is a wing bolt.

8. The white body parts matching and measuring fixture according to claim 1, characterized in that, The bottom of the support base (1) is provided with positioning holes (14) and fixing bolt mounting holes (15).

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