A detection tool for a trim end cap
By designing a testing fixture for trim end caps, and utilizing reference parts and measuring structures for precise measurement, the problems of large measurement errors and inability to trace defective products in existing technologies have been solved, enabling rapid, accurate measurement and efficient testing of end cap products.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGYUAN MINRUI AUTO PARTS CO LTD
- Filing Date
- 2025-08-28
- Publication Date
- 2026-06-16
Smart Images
Figure CN224365472U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of automotive parts measurement technology, and in particular to a testing fixture for trim end caps. Background Technology
[0002] In the past, end caps for door frame trim products were injection molded, and the thickness of the end caps was measured using calipers. Whether the outer circumference and buckle dimensions met the requirements had to be verified after the door frame trim body was assembled. However, now the end caps not only mate with the trim body, but also extend into structures that mate with other parts. In this case, assembly inspection alone can no longer meet the quality requirements, and the measurement data is prone to errors. Furthermore, the outer circumference and buckle dimensions need to be verified by matching the door frame trim body product. The lack of measurement standards makes it impossible to trace the source of defective products, which is not conducive to product improvement. The existing doorpost panel matching surface cannot be measured, which poses a potential quality risk. Utility Model Content
[0003] This application aims to solve one of the aforementioned technical problems in the prior art. To this end, embodiments of this application provide a testing fixture for trim end caps.
[0004] According to an embodiment of this application, a testing fixture for a trim end cap is provided, comprising a reference member, wherein the reference member is provided with at least one set of measuring structures, the measuring structures including a positioning groove, a pre-tightening member, and a measuring part; wherein
[0005] The positioning groove is used for positioning the bottom and sides of the end cap product. The bottom of the positioning groove is provided with a first reference surface, which is used for measuring the size of the matching surface of the door pillar plate of the end cap product.
[0006] The pretensioner is configured to be rotatable, and the free end of the pretensioner can rotate to above the first reference plane;
[0007] The measuring part includes a first positioning element and a measuring component. The first positioning element is used for positioning the end cutout hole of the end cap product. The measuring component is configured to form a first measuring space and a second measuring space with the end cap product.
[0008] The aforementioned inspection fixture for trim end caps has at least the following beneficial effects: The end cap product is positioned using a positioning groove and a first positioning component. The positioning groove also serves to detect whether the outer contour of the end cap product's body is deformed. Then, a pre-tightening component is rotated above the first reference surface to press and limit the end cap product within the positioning groove, allowing for the commencement of end cap product inspection and dimensional measurement. During measurement, a feeler gauge is inserted between the first reference surface and the matching surface of the doorpost panel to confirm the distance between the matching surface of the doorpost panel and the first reference surface. The measuring component is configured to form a first measuring space with the end cap product's cap portion and a second measuring space with the end cap product's body portion. By inserting a gauge into the measuring space, the relevant dimensions of the cap portion can be quickly measured to determine if they meet the standards, thereby achieving rapid measurement of the end cap product and improving measurement accuracy.
[0009] According to the embodiment of this application, the testing fixture for trim end caps includes a first measuring element, which forms the first measuring space with the first positioning element.
[0010] According to the embodiment of this application, the testing fixture for trim end caps includes a second measuring element, which is rotatably disposed on the first measuring element. The measuring end of the second measuring element can be rotated above the first positioning element so that the measuring end and the body of the end cap product form the second measuring space.
[0011] According to the inspection fixture for trim end caps described in the embodiments of this application, the reference member is further provided with a first limiting structure. The first limiting structure is used to restrict the rotation of the second measuring member so that the measuring end can be kept above the first positioning member.
[0012] According to the embodiment of this application, in the testing fixture for trim end caps, one end of the second measuring member is rotatably disposed on the side of the first measuring member away from the first positioning member. The first limiting structure includes a first limiting member. When the measuring end of the second measuring member rotates to above the first positioning member, the first limiting member can move to abut against the end of the second measuring member.
[0013] According to the inspection fixture for trim end caps described in the embodiments of this application, the first limiting member is provided with at least one oval hole, the reference member is provided with a screw hole, and the first limiting structure further includes a first screw. The first screw passes through the oval hole and connects to the screw hole, thereby restricting the movement of the first limiting member.
[0014] According to the inspection fixture for trim end caps described in the embodiments of this application, the reference member is provided with a groove for the first limiting member to slide, the setting direction of the groove is perpendicular to the setting direction of the positioning groove, and the screw hole is provided in the groove.
[0015] According to the inspection fixture for trim end caps described in the embodiments of this application, the measuring structure is provided in two sets, and the two sets of measuring structures are symmetrically arranged with the movement direction of the first limiting member as the line of symmetry.
[0016] According to the inspection fixture for trim end caps described in the embodiments of this application, a second limiting structure is provided on the reference member. When the pre-tightening member rotates above the first reference surface, the second limiting structure can be adjusted to restrict the rotation of the pre-tightening member.
[0017] According to the inspection fixture for trim end caps described in the embodiments of this application, the second limiting structure includes a slot and a second limiting member. When the pre-tightening member rotates to the slot, the pre-tightening member is above the first reference surface. The second limiting member is rotatably disposed on the reference member. The second limiting member can rotate above the slot to restrict the pre-tightening member from disengaging from the slot.
[0018] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description
[0019] The present application will be further described below with reference to the accompanying drawings and embodiments;
[0020] Figure 1 This is a schematic diagram of the structure of the end cap product in an embodiment of this application. Figure 1 ;
[0021] Figure 2 This is a schematic diagram of the end cap product structure in an embodiment of this application. Figure 2 ;
[0022] Figure 3 This is a schematic diagram of the end cap product structure in an embodiment of this application. Figure 3 ;
[0023] Figure 4 This is a schematic diagram of the structure of the testing fixture for the trim end cap, as described in this application embodiment. Figure 1 ;
[0024] Figure 5 This is a schematic diagram of the structure of the testing fixture for the trim end cap, as described in this application embodiment. Figure 2 ;
[0025] Figure 6This is a schematic diagram of the structure of the testing fixture for the trim end cap, as described in this application embodiment. Figure 3 ;
[0026] Figure 7 This is a schematic diagram of the structure of the testing fixture for the trim end cap, as described in this application embodiment. Figure 4 ;
[0027] Figure 8 This is a schematic diagram of the structure of the mounting component in an embodiment of this application.
[0028] Reference numerals: end cap product 100, body part 110, measuring surface 111, cover part 120, doorpost plate matching part 130, end hollow hole 140, mounting plate 201, reference part 210, third reference surface 211, first reference surface 212, slot 213, first positioning part 214, channel 215, mounting part 220, clamping slot 221, second positioning part 230, pre-tightening part 240, second limiting part 250, second measuring part 260, first measuring part 261, first limiting part 270, oblong hole 271, screw 280, go gauge 300. Detailed Implementation
[0029] This section will describe in detail the specific embodiments of this application. Preferred embodiments of this application are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of this application, but they should not be construed as limiting the scope of protection of this application.
[0030] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0031] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0032] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.
[0033] Figures 1 to 3 The present application provides a structural schematic diagram of the end cap product 100, which includes a body portion 110, a cover portion 120, and a doorpost plate matching portion 130. The cover portion 120 is disposed at the end of the body portion 110. Specifically, the two sides of the cover portion 120 are connected to the body portion 110 through connecting beams to form an end perforation hole 140 between the cover portion 120 and the body portion 110. The doorpost plate matching portion 130 extends from the side of the body portion 110. When measuring the end cap product 100, it is necessary to measure the thickness of the cover portion 120, the distance of the cover portion 120 relative to the body portion 110, and the thickness of the doorpost plate matching portion 130. The end of the body portion 110 facing the cover portion 120 is provided with a measuring surface 111, and the doorpost plate matching portion is provided with a doorpost plate matching surface.
[0034] Therefore, such as Figures 4 to 6 As shown, the inspection fixture for trim end caps provided in this application embodiment includes a reference member 210, and at least one set of measuring structures are provided on the reference member 210. The measuring structures include a positioning groove, a pre-tightening member 240, and a measuring part.
[0035] The positioning groove is used for positioning the bottom and side surfaces of the end cap product 100. The bottom of the positioning groove is provided with a first reference surface 212, which is used for measuring the dimensions of the matching surface of the door pillar plate of the end cap product 100.
[0036] The preload 240 is configured to be rotatable, and the free end of the preload 240 can rotate above the first reference surface 212.
[0037] The measuring unit includes a first positioning member 214 and a measuring component. The first positioning member 214 is used for positioning the end cutout hole 140 of the end cap product 100. The measuring component is configured to form a first measuring space and a second measuring space with the end cap product 100.
[0038] Specifically, before measuring the end cap product 100, the end cap product 100 is placed in the positioning groove to preliminarily check whether the end cap product 100 is deformed. Then, the end hole 140 of the end cap product 100 is engaged with the first positioning member 214 to complete the positioning of the end cap product 100. After the end cap product 100 is positioned, the doorpost plate matching surface of the doorpost plate matching part 130 is above the first reference surface 212. Next, the pre-tightening member 240 is rotated above the first reference surface 212, and the pre-tightening member 240 presses against the doorpost plate matching part 130 to complete the positioning and limitation of the end cap product 100.
[0039] During measurement, a feeler gauge is inserted between the first reference surface 212 and the mating surface of the doorpost panel to confirm the distance between the mating surface of the doorpost panel and the first reference surface 212. If the feeler gauge can be inserted just right, the thickness of the mating part 130 of the doorpost panel meets the requirements. If there is still a large amount of play after the feeler gauge is inserted or it cannot be inserted, then the size is non-compliant. Next, the measuring component is configured so that the measuring component and the cover part 120 of the end cover product 100 form a first measuring space, and the measuring component and the body part 110 of the end cover product 100 form a second measuring space. A go gauge 300 is placed into the first measuring space and the second measuring space. If the go gauge 300 can be inserted just right, the thickness of the cover part 120 meets the requirements. If there is still a large amount of play after the go gauge 300 is inserted or it cannot be inserted, then the size is non-compliant.
[0040] Compared to existing measurement methods that use calipers, the inspection fixture of this application makes the dimensional measurement of the end cap product 100 more convenient and faster, and the measurement accuracy is greatly improved.
[0041] In some embodiments, the measuring component includes a first measuring element 261, which forms a first measuring space with the first positioning element 214. After the end cap product 100 is positioned, the cap portion 120 abuts against the first positioning element 214, and the cap portion 120 is located between the first positioning element 214 and the first measuring element 261. The thickness of the cap portion 120 can be quickly measured by inserting a gauge 300 between the cap portion 120 and the first measuring element 261.
[0042] In some embodiments, the measuring component further includes a second measuring element 260, which is rotatably disposed on the first measuring element 261. The measuring end of the second measuring element 260 can rotate to be above the first positioning element 214 so that the measuring end and the body portion 110 of the end cover product 100 form a second measuring space. Specifically, a second reference surface is provided on the measuring end, and the second reference surface and the measuring surface 111 form a second measuring space. By inserting a gauge 300 into the second measuring space, the dimensional distance between the body portion 110 and the cover portion 120 can be quickly measured to see if it meets the requirements, thereby improving the detection speed.
[0043] The reference component 210 is also provided with a first limiting structure, which is used to limit the rotation of the second measuring component 260 so that the measuring end can be kept above the first positioning component 214, so as to avoid displacement deviation of the measuring end during measurement and affect the measurement accuracy.
[0044] like Figure 6 and Figure 8As shown, one end of the second measuring element 260 is rotatably positioned on the side of the first measuring element 261 away from the first positioning element 214. The first limiting structure includes a first limiting element 270. When the measuring end of the second measuring element 260 rotates above the first positioning element 214, the first limiting element 270 can move to abut against the end of the second measuring element 260. By adjusting the position of the first limiting element 270, the rotational freedom of the second measuring element 260 is restricted, preventing the measuring end from shaking or displacing during measurement.
[0045] In some embodiments, such as Figure 5 and Figure 6 As shown, the first limiting member 270 is provided with at least one oblong hole 271, and the reference member 210 is provided with a screw hole. The first limiting structure also includes a first screw 280, which passes through the oblong hole 271 and connects to the screw hole, thereby restricting the movement of the first limiting member 270. When adjusting the first limiting member 270, the restriction of the screw 280 is released. Under the action of the oblong hole 271, the position of the first limiting member 270 can be adjusted without completely removing the screw 280, making adjustment convenient.
[0046] Among them, such as Figure 8 As shown, the reference member 210 is provided with a groove 215 for the first limiting member 270 to slide. The groove 215 is perpendicular to the positioning groove, and a screw hole is provided in the groove 215. The groove 215 restricts the sliding direction of the first limiting member 270, making the adjustment of the first limiting member 270 more convenient.
[0047] In this embodiment, two sets of measuring structures are provided, and the two sets of measuring structures are symmetrically arranged with the direction of movement of the first limiting member 270 as the line of symmetry. According to Figure 5 , Figure 6 and Figure 8 As can be seen, since the two sets of measuring structures are symmetrically arranged with the first limiting member 270 as the center of symmetry, only one first limiting member 270 is needed to restrict the rotation of the two second measuring members 260. The overall structure is compact and easy to operate, and it can also further improve the positioning speed and detection efficiency.
[0048] In some other embodiments, a second limiting structure is provided on the reference member 210. When the pre-tightening member 240 rotates above the first reference surface 212, the second limiting structure can be adjusted to restrict the rotation of the pre-tightening member 240. The second limiting structure keeps the pre-tightening member 240 pressed against the end cap product 100, preventing the end cap product 100 from becoming loose during the measurement process and affecting the judgment.
[0049] The second limiting structure includes a slot 213 and a second limiting member 250. When the pre-tightening member 240 rotates to the slot 213, the pre-tightening member 240 is above the first reference surface 212. The second limiting member 250 is rotatably disposed on the reference member 210. The second limiting member 250 can rotate to the top of the slot 213 to restrict the pre-tightening member 240 from disengaging from the slot 213.
[0050] By setting the slot 213 and the second limiting member 250, it is possible to accurately determine whether the thickness of the body portion 110 of the end cap product 100 to be inspected conforms to the dimensions. Specifically, if the pre-tightening member 240 cannot fully enter the slot 213, it means that the thickness of the end cap product 100 is too large. A qualified end cap product 100 should have the top surface of the pre-tightening member 240 flush with the opening of the slot 213.
[0051] In some other embodiments, the reference member 210 is provided with a third reference surface 211 and a second positioning member 230, the second positioning member 230 is formed as the sidewall of the positioning groove, and the third reference surface 211 is formed as the bottom surface of the positioning groove.
[0052] The inspection fixture for trim end caps in this embodiment of the application also includes a mounting plate 201, a reference member 210 fixed on the mounting plate 201, and a mounting member 220 for placing a go gauge 300 on the mounting plate 201. The mounting member 220 is made of elastic material and is provided with a clamping groove 221 for clamping the go gauge 300 to facilitate the placement and removal of the go gauge 300.
[0053] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.
Claims
1. A testing fixture for trim end caps, characterized in that: The system includes a reference component, on which at least one set of measuring structures are provided, the measuring structures including a positioning groove, a pre-tightening component, and a measuring part; in The positioning groove is used for positioning the bottom and sides of the end cap product. The bottom of the positioning groove is provided with a first reference surface, which is used for measuring the size of the matching surface of the door pillar plate of the end cap product. The pretensioner is configured to be rotatable, and the free end of the pretensioner can rotate to above the first reference plane; The measuring part includes a first positioning element and a measuring component. The first positioning element is used for positioning the end cutout hole of the end cap product. The measuring component is configured to form a first measuring space and a second measuring space with the end cap product.
2. The inspection fixture for trim end caps according to claim 1, characterized in that: The measuring component includes a first measuring element, which, together with the first positioning element, forms the first measuring space.
3. The inspection fixture for trim end caps according to claim 2, characterized in that: The measuring component further includes a second measuring element, which is rotatably disposed on the first measuring element. The measuring end of the second measuring element can rotate to be above the first positioning element so that the measuring end and the body of the end cap product form the second measuring space.
4. The inspection fixture for trim end caps according to claim 3, characterized in that: The reference component is further provided with a first limiting structure, which is used to limit the rotation of the second measuring component so that the measuring end can be kept above the first positioning component.
5. The inspection fixture for trim end caps according to claim 4, characterized in that: One end of the second measuring element is rotatably disposed on the side of the first measuring element away from the first positioning element. The first limiting structure includes a first limiting element. When the measuring end of the second measuring element rotates to above the first positioning element, the first limiting element can move to abut against the end of the second measuring element.
6. The inspection fixture for trim end caps according to claim 5, characterized in that: The first limiting member is provided with at least one oval hole, the reference member is provided with a screw hole, and the first limiting structure also includes a first screw. The first screw passes through the oval hole and connects to the screw hole, thereby limiting the movement of the first limiting member.
7. The inspection fixture for trim end caps according to claim 6, characterized in that: The reference component is provided with a groove for the first limiting component to slide. The direction of the groove is perpendicular to the direction of the positioning groove, and the screw hole is provided in the groove.
8. The inspection fixture for trim end caps according to any one of claims 5 to 7, characterized in that: The measuring structure consists of two sets, which are symmetrically arranged with the direction of movement of the first limiting member as the line of symmetry.
9. The inspection fixture for trim end caps according to claim 8, characterized in that: The reference component is provided with a second limiting structure. When the pre-tightening component rotates to above the first reference surface, the second limiting structure can be adjusted to restrict the rotation of the pre-tightening component.
10. The inspection fixture for trim end caps according to claim 9, characterized in that: The second limiting structure includes a slot and a second limiting member. When the pre-tightening member rotates to the slot, the pre-tightening member is above the first reference surface. The second limiting member is rotatably disposed on the reference member. The second limiting member can rotate above the slot to restrict the pre-tightening member from disengaging from the slot.