Vehicle door closing inner gap measuring tool

Abstract

The utility model provides a vehicle door closing inner gap measuring tool. The vehicle door closing inner gap measuring tool comprises a measuring tool body, a sliding measuring piece and an elastic piece. The measuring tool body is provided with a slideway and a fixing part, and at least one end of the slideway penetrates through the measuring tool body; the sliding measuring piece is in sliding guide fit with the slideway and is provided with a pushing end exposed outside the slideway; a plurality of length scales are uniformly distributed on the sliding measuring piece; the elastic member is used for driving the sliding measurement member to slide and reset. According to the vehicle door closing inner gap measuring tool, after the vehicle door is completely closed, the measurement and reading of the vehicle door inner gap can be realized by sliding the length scales on the measuring piece, the operation is simple and convenient, the technical requirements and the labor intensity of operators can be reduced, and the measurement convenience is greatly improved.

Description

A tooling for measuring the inner gap when a car door is closed. Technical Field

[0001] This utility model belongs to the field of measurement technology, specifically relating to a tooling for measuring the inner gap when a car door is closed in a car body-in-white. Background Technology

[0002] The inner gap when the door closes is a crucial parameter for the quality of the assembly between the car body and the door. It determines the compression of the sealing strip, affects its service life, and consequently affects the car's ability to seal against dust and rain. It can also cause noise and other abnormal sounds during driving, impacting the customer's driving experience.

[0003] In related technologies, there are two main methods for measuring the inner gap when a car door is closed: one is to use clay (or modeling clay) to squeeze between the car door and the side panel, and define the inner gap when the car door is closed by measuring the height of the compressed part of the clay at each point; the other is to measure the inner gap manually with a steel ruler, feeler gauge, or go / no-go gauge, that is, after the car door is closed, the measuring personnel measure the inner gap from inside the vehicle by holding a steel ruler, feeler gauge, or go / no-go gauge.

[0004] The first measurement method has the following disadvantages and deficiencies: it is difficult to read vertically due to the limited space of the vehicle body, the measurement result has a large error, and multiple re-measurements are required to obtain an accurate value for a certain point. The test is time-consuming and labor-intensive. In addition, the clay is squeezed into shape after the car door is closed, and the height of the squeezed part rebounds when the car door is opened, which deviates from the actual gap value inside the car body. When measuring the inner gap of the closed car door, the car body is in the white body state, and there is an oil layer on the surface of the car body, which makes the clay easy to slip off, resulting in a high failure rate of measurement.

[0005] The second measurement method has the following disadvantages and deficiencies: the interior space of a car is often limited, and manual measurement is often impossible when the measurement position is special and the space is narrow; as for traditional steel rulers, feeler gauges, and go / no-go gauges, measuring the internal clearance often has disadvantages such as difficulty in reading, poor measurement repeatability, and time-consuming and laborious measurement.

[0006] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Summary of the Invention

[0007] This utility model provides a tooling for measuring the inner gap when a car door is closed, which can solve the problems of inconvenience and large measurement deviation in the existing automobile manufacturing and testing process for measuring the inner gap when a car door is closed.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is a tooling for measuring the inner gap when a car door is closed, comprising:

[0009] The measuring fixture body is provided with a straight slide rail and a fixing component for fixing the measuring fixture body to the side door frame of the vehicle body during measurement. At least one end of the slide rail passes through the measuring fixture body.

[0010] A sliding measuring component is inserted into the slide rail through one through end and slides in cooperation with the slide rail. The sliding measuring component has a pushing end protruding outside the slide rail. The sliding measuring component is evenly provided with a plurality of length graduations, and the direction of the length graduations is parallel to the sliding direction of the sliding measuring component.

[0011] An elastic element is disposed between the measuring fixture body and the sliding measuring element, and is used to drive the sliding measuring element to slide and reset.

[0012] The technical solution of this utility model also includes the following additional technical features:

[0013] A first extension is formed on the measuring fixture body near the pushing end of the sliding measuring component. The first extension is perpendicular to the sliding measuring component. The first extension has a first planar portion that is opposite to the pushing end of the sliding measuring component. The first planar portion is coplanar with the end face of the through end of the slide rail.

[0014] When the measuring fixture body is fixed on the side door frame of the vehicle body, the first flat part is in contact with the outer side or end face of the side door frame of the vehicle body.

[0015] When the first flat portion is in contact with the outer side of the vehicle side door frame, a first recess is formed on the first flat portion, and the fixing component is a strong magnet fixed in the first recess, which is magnetically attracted to the outer side of the vehicle side door frame.

[0016] When the first flat portion is attached to the end face of the side door frame of the vehicle body, the first extension portion is connected to a second extension portion perpendicular to it. The second extension portion is located on the side where the first flat portion is located. The second extension portion has a second flat portion that is perpendicularly connected to the first flat portion. A second recess is formed on the second flat portion. The fixing component is a strong magnet fixed in the second recess and magnetically attracted to the outer surface of the side door frame of the vehicle body.

[0017] The number of the first extensions is multiple, and the multiple first extensions are arranged on opposite sides of the sliding measuring member.

[0018] One end of the elastic element is connected to the measuring fixture body, and the other end is connected to the sliding measuring element;

[0019] The elastic element is configured as follows:

[0020] When the sliding measuring component is in the sliding reset state, the elastic component is in the natural state, and the sliding measuring component slides out to its maximum length relative to the slide rail;

[0021] When the sliding measuring element slides into the slide rail, the elastic element is stretched.

[0022] The measuring fixture body is provided with a locking component, which is used to lock the sliding measuring component when it slides into place relative to the slide rail.

[0023] The sliding measuring member is provided with elastic elements on each of its opposite sides, and the sliding measuring member is provided with locking elements on each of its opposite sides.

[0024] One end of the elastic element is connected to the locking element, and the other end is connected to the end of the sliding measuring element located in the slide rail.

[0025] The measuring fixture body includes a first part and a second part, which are joined together to form the slide rail, and the fixing component is provided on the first part.

[0026] Compared with the prior art, the present invention has the following advantages and positive effects:

[0027] 1. This utility model provides a door closing internal clearance measuring fixture. During measurement, the measuring fixture body is installed on the side door frame of the vehicle body through its fixing part. At this time, the sliding measuring component is located on the closing path of the white body door. The sliding measuring component has several lengths evenly distributed on it. During the closing process, the edge of the door pushes the sliding measuring component to slide relative to the measuring fixture body along the slide rail until the door is completely closed and the sliding measuring component stops sliding. The internal clearance of the door can then be measured and read through the length scale on the sliding measuring component. The operation is simple, which can reduce the technical requirements and labor intensity of the operator and greatly improve the convenience of measurement.

[0028] 2. The length scale of the sliding measuring component can be set on the side of the sliding measuring component that is easy to observe and read, which further facilitates the measurement; after the measurement is completed, the elastic element drives the sliding measuring component to slide and reset, which is convenient for repeated measurement.

[0029] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the 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 based on these drawings without creative effort.

[0031] Figure 1 is a perspective view of the door closing inner gap measuring fixture from a top view when the sliding measuring component is in the reset state in some embodiments of this utility model;

[0032] Figure 2 is a perspective view from another top angle of the door closing inner gap measuring fixture in some embodiments of this utility model when the sliding measuring component is in the reset state;

[0033] Figure 3 is a perspective view of the bottom of the door closing inner gap measuring fixture in some embodiments of this utility model when the sliding measuring component is in the reset state;

[0034] Figure 4 is a perspective view of the bottom of the door closing inner gap measuring fixture when the sliding measuring component is in the reset state in some embodiments of this utility model, omitting the second part of the measuring fixture body.

[0035] Figure 5 is a perspective view of the door closing inner gap measuring fixture in some embodiments of this utility model when the sliding measuring component slides into the slide rail to the limit state;

[0036] Figure 6 is a perspective view of the bottom of the door closing inner gap measuring fixture in some embodiments of the present invention, with the sliding measuring component sliding into the slide rail to the limit state, after omitting the second part of the measuring fixture body.

[0037] Figure 7 is a schematic diagram of the structure of the door closing inner clearance measuring tool in some embodiments of the present invention when measuring the closing inner clearance of four car doors;

[0038] Figure 8 is a view from direction M in Figure 7;

[0039] Figure 9 is a schematic diagram of another structure of the door closing inner gap measuring fixture in some other embodiments of this utility model;

[0040] Figure 10 is a schematic diagram of the structure of the tooling shown in Figure 9 for measuring the inner gap of the car body door when the trunk door is closed.

[0041] Figure label:

[0042] 1. Measuring fixture; 100. Measuring fixture body; 110. Slide rail; 111. Through end; 112. Guide protrusion; 120. Fixing component; 130. First extension; 131. First flat part; 132. First recess; 140. Second extension; 141. Second flat part; 142. Second recess; 150. First part; 160. Second part; 200. Sliding measuring component; 210. Pushing end; 211. Rounded protrusion; 220. Length scale; 230. Connecting plate; 231. Hook; 240. Guide groove; 300. Elastic component; 400. Locking component; 410. Neck;

[0043] 2. Side door frame of the vehicle body; 2-1. Outer side of the side door frame of the vehicle body; 2-2. End face of the side door frame of the vehicle body;

[0044] 3. Car door; 3-1. Inner side of the car door. Detailed Implementation

[0045] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0046] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0047] In some embodiments of this application, referring to Figures 1 to 8, a door closing inner gap measuring fixture 1 is made of a rigid material, such as all steel, and includes a measuring fixture body 100, a sliding measuring component 200, and an elastic component 300.

[0048] The measuring fixture body 100 is provided with a straight slide rail 110 and a fixing component 120, and at least one end of the slide rail 110 passes through the measuring fixture body 100.

[0049] In some embodiments of this application, the slide rail 110 penetrates the measuring fixture body 100 at only one end, and this end is referred to as the through end 111 of the slide rail 110.

[0050] The fixing component 120 is used to fix the measuring fixture body 100 on the side door frame 2 of the vehicle body when measuring the inner gap of the closed door, thereby fixing the entire measuring fixture 1 on the side door frame 2 of the vehicle body, which can realize measurement without hand.

[0051] The sliding measuring component 200 is inserted into the slide rail 110 through its through end 111 and slides in a guide manner with the slide rail 110. Under external force, the sliding measuring component 200 can slide linearly along the slide rail 110 relative to the measuring fixture body 100. The sliding measuring component 200 has a pushing end 210 protruding outside the slide rail 110. Several length graduations 220 are evenly distributed on the sliding measuring component 200, including length graduation lines and corresponding length graduation values. The direction of the length graduations 220 is parallel to the sliding direction of the sliding measuring component 200.

[0052] The length scale 220 on the sliding measuring component 200 can be formed by laser printing, which is clear, easy to read, and can still be readable after long-term use.

[0053] An elastic element 300 is disposed between the measuring fixture body 100 and the sliding measuring element 200, and is used to drive the sliding measuring element 200 to slide and reset. In some embodiments of this application, in the reset state, the sliding measuring element 200 extends outside the slide rail 110 at its maximum extension length, so that when the door is closed to a certain extent, the inner side of the door can contact the sliding measuring element 200, and during the continued closing process, it can push the sliding measuring element 200 to slide into the slide rail 110.

[0054] When the entire measuring fixture 1 is fixed on the side door frame 2 of the vehicle body, the position of the sliding measuring component 200 is on the closing path of the door, that is, after the door is closed to a certain extent, it can contact the sliding measuring component 200, and in the process of continuing to close the door until it is completely closed, it can maintain contact with the sliding measuring component 200 and push the sliding measuring component 200 to slide into the slide rail 110.

[0055] In some embodiments of this application, as shown in Figures 1 to 8, a first extension 130 is formed on the measuring fixture body 100 near the pushing end 210 of the sliding measuring member 200. The first extension 130 is arranged perpendicularly to the sliding measuring member 200. The first extension 130 has a first flat portion 131 that is opposite to the pushing end 210 of the sliding measuring member 200. The first flat portion 131 is coplanar with the through end face a of the slide rail 110. When the measuring fixture body 100 is fixed on the side door frame 2 of the vehicle body, the first flat portion 131 is in contact with the outer side surface 2-1 of the side door frame of the vehicle body.

[0056] As shown in Figures 1 to 8, the door closing inner clearance measuring fixture 1 is suitable for measuring the closing inner clearance of, for example, four doors of a car (usually referring to the two front doors and two rear doors of the car body).

[0057] Taking one of the four doors of a car as an example, the specific measurement process is as follows:

[0058] 1. Open the car door 3 and fix the car door closing inner gap measuring fixture 1 on the car body side door frame 2 corresponding to the car door 3. At this time, the fixture is horizontal, the sliding measuring component 200 is in the reset state, the measuring fixture body 100 is located inside the car body side door frame 2, the pushing end 210 of the sliding measuring component 200 is located outside the car body side door frame 2, that is, the side where the door is located, the slide rail 110 and the sliding measuring component 200 are horizontal, the first extension 130 and its first flat part 131 are vertical, the first flat part 131 is in contact with the outer side surface 2-1 of the car body side door frame, the end face a of the through end of the slide rail 110 is also vertical and coplanar with the first flat part 131, the through end 111 of the slide rail 110 is close to the pushing end 210 of the sliding measuring component 200, and the other end of the slide rail 110 is far away from the pushing end 210 of the sliding measuring component 200.

[0059] 2. Close the car door 3. When the inner side 3-1 of the car door contacts the pushing end 210 of the sliding measuring component 200, continue the closing action. The car door 3 pushes the sliding measuring component 200 inward (in the direction indicated by arrow I in Figure 7), that is, slides towards the side door frame 2 of the car body.

[0060] 3. Close the car door 3 until it is fully closed. At this point, the sliding measuring component 200 stops sliding inward, as shown in Figure 7.

[0061] 4. Obtain the measured value D1 of the inner clearance based on the length scale value protruding from the slide rail 110 on the sliding measuring component 200, as shown in Figure 7.

[0062] For the four doors of a car body-in-white, when the doors are fully closed, the distance between the inner side 3-1 of the door and the outer side 2-1 of the side door frame is the inner clearance of the closed door. Since the end face a of the through end of the slide rail 110 is coplanar with the first flat part 131 of the first extension 130, and the inner side 3-1 of the door is in contact with the end face of the pushing end 210 of the sliding measuring member 200, the zero point of the scale value of the length scale 220 is set on the end face of the pushing end 210 of the sliding measuring member 200. The scale value gradually increases from the pushing end 210 to the other end of the sliding measuring member 200. Therefore, when the door is fully closed, the scale value corresponding to the scale line aligned with the end face a of the through end of the slide rail 110 is the measured value of the inner clearance of the closed door.

[0063] When the accuracy requirement of the measurement value is not high, the above-mentioned measuring fixture 1 can be used as a direct gap measuring tool, that is, the inner gap of the closed door can be directly read, which further facilitates the measurement.

[0064] Specifically, the measurement accuracy depends on the scale. As shown in Figure 8, taking the minimum scale value of the sliding measuring component 200 as 1mm as an example, the estimated reading can reach 0.1mm. At this time, the measured value D1 of the inner gap of the closed door can be directly estimated as 13.0 or 13.1mm, which can meet the general requirements of daily measurement, while also taking into account the visual convenience of operation and reading.

[0065] Following the above process, the closing inner clearance of the other doors in the four doors of the car body-in-white can be measured in sequence.

[0066] In some embodiments of this application, the elastic element 300 is a straight spring, as shown in FIG4, with one end connected to the measuring fixture body 100 and the other end connected to the sliding measuring element 200. Since the measuring fixture body 100 is fixed, the sliding of the sliding measuring element 200 causes the elastic element 300 to produce elastic deformation along the sliding direction.

[0067] The elastic element 300 is configured such that when the sliding measuring element 200 is in the reset state, the elastic element 300 is in the natural state, at which time the sliding measuring element 200 is in the position of sliding out to the maximum length relative to the slide rail 110, as shown in Figures 1 to 4; when the sliding measuring element 200 is pushed into the slide rail 110 by the door during the closing process, the sliding measuring element 200 stretches the elastic element 300, causing the elastic element 300 to undergo elastic deformation and store energy. When the sliding measuring element 200 extends into the slide rail 110 to the limit position, the elastic element 300 is stretched to the maximum length, as shown in Figures 5 and 6.

[0068] Of course, the elastic element 300 can also be configured such that when the sliding measuring element 200 is in the reset state, the elastic element 300 is in the natural state, at which time the sliding measuring element 200 slides out to the maximum length relative to the slide rail 110; and when the sliding measuring element 200 slides into the slide rail 110, the elastic element 300 is compressed.

[0069] In some embodiments of this application, the measuring fixture body 100 is provided with a locking member 400, which is used to lock the sliding measuring member 200 when it slides into place relative to the slide rail 110. When the car door is closed to a fully closed state, and the measurement value of the inner gap of the closed car door is read, the locking member 400 can lock the sliding measuring member 200, so that when the car door is opened and the pushing force on the sliding measuring member 200 is removed, the sliding measuring member 200 will not reset under the restoring force of the elastic member 300. At this time, there is no obstruction from the car door, further improving the convenience of reading the measurement value; alternatively, after the locking member 400 locks the sliding measuring member 200, the measuring fixture 1 can be removed from the side door frame 2 of the vehicle body for reading, which is even more convenient.

[0070] Meanwhile, when the gap measurement point requires high measurement accuracy, after the locking part 400 locks the sliding measuring part 200, the measuring fixture 1 is removed from the side door frame 2 of the vehicle body, so that the measuring fixture 1 can also be used as an indirect gap simulation fixture, in conjunction with existing gap measurement equipment such as a handheld gap measuring instrument.

[0071] Specifically, as shown in Figure 8, since the measured value of the inner gap when the door is closed, D1 = X + A, where X is the thickness of the pushing end 210 of the sliding measuring component 200 (a known design value), and A is the distance between the inner end face of the pushing end 210 of the sliding measuring component 200 and the through end face a of the slide rail 110, the value of A can be indirectly obtained by measuring the inner gap when the door is closed using a gap measuring device, such as a handheld gap measuring instrument, after the locking component 400 locks the sliding measuring component 200 and the measuring fixture 1 is removed from the side door frame 2 of the vehicle body. The gap measuring device has high accuracy, typically reaching 0.01 mm, so the accuracy of the D1 value can reach 0.01 mm.

[0072] In some embodiments of this application, the locking member 400 can be a locking bolt or a set screw, which is mounted on the measuring fixture body 100 and perpendicular to the side of the sliding measuring member 200. The inner end of the locking member 400 can contact the side of the sliding measuring member 200. By rotating to tighten or loosen the locking member 400, its inner end can be pressed against the side of the sliding measuring member 200 to achieve locking, or it can be disengaged from the sliding measuring member 200 to unlock it.

[0073] As shown in Figures 4 and 6, the elastic element 300 is provided on each of the opposite sides of the sliding measuring element 200, and the locking element 400 is provided on each of the opposite sides of the sliding measuring element 200, so that the elastic element 300 and the locking element 400 can apply force to the sliding measuring element 200 in a balanced manner.

[0074] Since the measuring fixture 1 itself is small in size, an elastic element 300 is provided on each of the opposite sides of the sliding measuring element 200, and a locking element 400 is provided on each of the opposite sides of the sliding measuring element 200.

[0075] As shown in Figures 4 and 6, one end of the elastic element 300 is connected to the locking element 400, and the other end is connected to one end of the sliding measuring element 200 located in the slide rail 110 (this end can be referred to as the inner end of the sliding measuring element 200).

[0076] Specifically, the locking member 400 is closer to the pushing end 210 of the sliding measuring member 200 than the elastic member 300. A neck 410 is formed on the locking member 400 near its inner end. A connecting plate 230 is fixed to the inner end of the sliding measuring member 200, and a hook 231 is formed at the end of the connecting plate 230. Both ends of the elastic member 300 are hooked onto the neck 410 of the locking member 400 and the hook 231 of the connecting plate 230, respectively. Thus, when the sliding measuring member 200 is pushed into the slide rail 110, the elastic member 300 is pulled and deformed in a direction away from the through end 111 of the slide rail 110, as shown in Figure 6.

[0077] In some embodiments of this application, as shown in Figures 3, 4, 6, and 7, a first recess 132 is formed on the first flat portion 131, and the fixing member 120 is a strong magnet fixed in the first recess 132, magnetically attracted to the outer side surface 2-1 of the vehicle side door frame. When the entire measuring fixture 1 is magnetically attracted to the outer side surface 2-1 of the vehicle side door frame by the fixing member 120, the first flat portion 131 is in contact with the outer side surface 2-1 of the vehicle side door frame.

[0078] By embedding the fixing component 120, its outward protrusion can be avoided from affecting the fit between the first flat portion 131 and the outer side 2-1 of the vehicle body side door frame.

[0079] Furthermore, as shown in Figures 1 to 8, there are multiple first extensions 130, which are arranged on opposite sides of the sliding measuring member 200. For example, one first extension 130 is provided on each opposite side of the sliding measuring member 200. Correspondingly, a fixing member 120 is embedded in the first flat part 131 of each first extension 130 to improve the stability of the entire measuring fixture 1 fixed on the side door frame 2 of the vehicle body, which is beneficial to improving the measurement accuracy of the inner gap when the door is closed.

[0080] In some other embodiments of this application, as shown in Figures 9 and 10, unlike the embodiments described above, the first extension 130 is connected to a second extension 140 perpendicular to it, so that the first extension 130 and the second extension 140 are connected in an L-shape. The second extension 140 is located on the side where the first flat portion 131 is located. The second extension 140 has a second flat portion 141 that is perpendicularly connected to the first flat portion 131. A second recess 142 is formed on the second flat portion 141. The fixing member 120 is a strong magnet fixed in the second recess 142 and magnetically attracted to the outer side surface 2-1 of the vehicle side door frame. At this time, the first flat portion 131 is in contact with the end face 2-2 of the vehicle side door frame, as shown in Figure 10.

[0081] As shown in Figures 9 and 10, the door closing inner clearance measuring fixture 1 can be used to measure, for example, the closing inner clearance of a car trunk door. In this case, with the door fully closed, the distance D2 between the inner side surface 3-1 of the door and the end face 2-2 of the side door frame of the vehicle body is the door closing inner clearance.

[0082] The specific measurement process is as follows:

[0083] 1. Open the car door 3, and magnetically fix the door closing inner gap measuring fixture 1 to the corresponding side door frame 2 of the trunk door via the fixing component 120 on the second extension 140. Taking the installation state shown in Figure 10 as an example, at this time, the measuring fixture 1 is in a vertical state, the sliding measuring component 200 is in the reset state, the measuring fixture body 100 is located inside the side door frame 2, and the pushing end 210 of the sliding measuring component 200 is located outside the side door frame 2, that is, on the side where the door is located. 110. The sliding measuring member 200 and the second extension 140 are in a vertical state, the first extension 130 and its first flat part 131 are in a horizontal state, the first flat part 131 is in contact with the end face 2-2 of the side door frame of the vehicle body, the end face a of the through end of the slide rail 110 is also in a horizontal state and is coplanar with the first flat part 131, the through end 111 of the slide rail 110 is close to the pushing end 210 of the sliding measuring member 200, and the other end of the slide rail 110 is far away from the pushing end 210 of the sliding measuring member 200.

[0084] 2. Close the car door 3. When the inner side 3-1 of the car door contacts the pushing end 210 of the sliding measuring component 200, continue the closing action. The car door 3 pushes the sliding measuring component 200 inward (in the direction indicated by arrow II in Figure 10), that is, slides towards the side door frame 2 of the car body.

[0085] 3. Close the car door 3 until it is fully closed. At this point, the sliding measuring component 200 will stop sliding inward.

[0086] 4. Based on the scale value protruding from the slide rail 110 on the sliding measuring component 200, obtain the measured value D2 of the inner clearance. The direct reading and indirect acquisition methods of the measured value are the same as those of the embodiments corresponding to the measuring fixtures shown in Figures 1 to 8, and will not be repeated here.

[0087] When measuring each car door, multiple door closing inner gap measuring fixtures 1 described in the above embodiments can be installed around the 2 circumference of the side door frame of the vehicle body. The closing inner gap of all points of the car door can be measured in one door closure, which greatly saves the time and labor cost of inner gap measurement.

[0088] In some embodiments of this application, as shown in Figures 1 to 10, the end face of the pushing end 210 of the sliding measuring member 200 includes a smooth protrusion 211. This smooth protrusion 211 contacts the inner side surface 3-1 of the car door, ensuring that when the inner side surface of the car door pushes the sliding measuring member 200 during the closing process, the inner side surface of the car door contacts and abuts against the smooth surface, preventing damage caused by the inner side surface 3-1 of the car door abutting against the sharp parts of the sliding measuring member 200.

[0089] At this time, the zero point of the length scale value on the sliding measuring component 200 is set on the smooth protrusion 211, the inner gap of the four doors when closed is represented by dimension D1 in Figures 7 and 8, and the inner gap of the trunk door when closed is represented by dimension D2 in Figure 10.

[0090] To facilitate the processing of the slide rail 110, in some embodiments of this application, the measuring fixture body 100 includes a first part 150 and a second part 160, which together form the slide rail 110, and the fixing component 120 is disposed on the first part 150.

[0091] The first part 150 and the second part 160 can be connected as one unit by means of screw fastening or adhesive bonding, and no specific restrictions are imposed here.

[0092] Similarly, the first part 150 can also be a multi-part splicing form, such as being spliced ​​together by screws connecting the front and rear parts, so as to facilitate processing and assembly.

[0093] The slide rail 110 has a rectangular cross-section, and the corresponding sliding measuring component 200 is a block with a rectangular cross-section, which facilitates processing and provides sliding guidance and limiting. The two opposite sides of the sliding measuring component 200 and the corresponding sides of the slide rail 110 have mutually cooperating sliding guide structures, such as guide grooves 240 and guide protrusions 112, to further improve guiding accuracy.

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model 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 utility model.

Claims

1. A fixture for measuring the inner clearance when a car door is closed, characterized in that, include: The measuring fixture body has a straight slide rail and a fixing component for fixing the measuring fixture body to the side door frame of the vehicle body during measurement. At least one end of the slide rail passes through the measuring fixture body. A sliding measuring component is inserted into the slide rail through one end and slides and guides the slide rail. The sliding measuring component has a pushing end protruding outside the slide rail. The sliding measuring component has a plurality of length graduations evenly distributed on it, and the direction of the length graduations is parallel to the sliding direction of the sliding measuring component. An elastic element is disposed between the measuring fixture body and the sliding measuring element, and is used to drive the sliding measuring element to slide and reset.

2. The door closing inner gap measuring fixture according to claim 1, characterized in that, A first extension is formed on the measuring fixture body near the pushing end of the sliding measuring member. The first extension is perpendicular to the sliding measuring member and has a first planar portion opposite to the pushing end of the sliding measuring member. The first planar portion is coplanar with the end face of the through end of the slide rail. When the measuring fixture body is fixed on the side door frame of the vehicle body, the first planar portion is in contact with the outer side or end face of the side door frame of the vehicle body.

3. The door closing inner gap measuring fixture according to claim 2, characterized in that, When the first flat portion is in contact with the outer side of the vehicle side door frame, a first recess is formed on the first flat portion, and the fixing component is a strong magnet fixed in the first recess, which is magnetically attracted to the outer side of the vehicle side door frame.

4. The door closing inner gap measuring fixture according to claim 2, characterized in that, When the first flat portion is attached to the end face of the side door frame of the vehicle body, the first extension portion is connected to a second extension portion perpendicular to it. The second extension portion is located on the side where the first flat portion is located. The second extension portion has a second flat portion that is perpendicularly connected to the first flat portion. A second recess is formed on the second flat portion. The fixing component is a strong magnet fixed in the second recess and magnetically attracted to the outer surface of the side door frame of the vehicle body.

5. The door closing inner gap measuring fixture according to claim 3 or 4, characterized in that, The number of the first extensions is multiple, and the multiple first extensions are arranged on opposite sides of the sliding measuring member.

6. The door closing inner gap measuring fixture according to claim 1, characterized in that, One end of the elastic element is connected to the measuring fixture body, and the other end is connected to the sliding measuring element; the elastic element is configured such that when the sliding measuring element is in the sliding reset state, the elastic element is in the natural state, and the sliding measuring element slides out to its maximum length relative to the slide rail. When the sliding measuring element slides into the slide rail, the elastic element is stretched.

7. The door closing inner gap measuring fixture according to claim 6, characterized in that, The measuring fixture body is provided with a locking component, which is used to lock the sliding measuring component when it slides into place relative to the slide rail.

8. The door closing inner gap measuring fixture according to claim 7, characterized in that, The sliding measuring member is provided with elastic elements on each of its opposite sides, and the sliding measuring member is provided with locking elements on each of its opposite sides.

9. The door closing inner gap measuring fixture according to claim 8, characterized in that, One end of the elastic element is connected to the locking element, and the other end is connected to the end of the sliding measuring element located in the slide rail.

10. The door closing inner gap measuring fixture according to claim 1, characterized in that, The measuring fixture body includes a first part and a second part, which are joined together to form the slide rail, and the fixing component is provided on the first part.

Images