Parking switch assembly testing fixture

Abstract

The utility model discloses a parking switch assembly testing fixture, comprising a testing fixture body which is provided with a through hole used for installing a parking switch to simulate the installation environment of an upper plaque; the switch positioning block is fixedly arranged on the testing fixture body and is used for positioning the parking switch; a go / no-go gauge which is detachably installed on the detection tool body and is used for detecting the installation gap between the installed parking switch and the detection tool body; a surface difference gauge which is detachably installed on the testing fixture body and is used for detecting the installation surface difference between the installed parking switch and the testing fixture body; according to the utility model, when the assembly of the parking switch is detected, the parking switch is installed in the detection tool so as to simulate that the parking switch is installed on an upper plaque and the assembly clearance and the assembly surface difference are detected, and compared with the traditional mode that the parking switch is directly installed on an upper plaque object, the detection efficiency is greatly improved. And the influence on the detection result caused by the unstable precision of the upper plaque can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of parking switch assembly detection, in particular to a parking switch assembly inspection tool. Background Art

[0002] The parking switch, also known as the parking brake switch, generally refers to a function or device on a vehicle that is used to keep the vehicle stable when parked to prevent it from sliding or rolling. This function is usually achieved by an electronic handbrake or a parking gear in an automatic transmission, which provides resistance by locking the drive shaft or rear wheels to prevent the vehicle from moving.

[0003] In automatic transmission models, the parking switch is installed on the upper trim in the form of a button. The parking switch can be installed on the upper trim through positioning pins and buckles. To ensure that the parking switch does not interfere with the upper trim during the pressing process and that the parking switch and the upper trim match beautifully, the parking switch and the upper trim must define reasonable gap and face difference requirements. To meet the gap and face difference requirements between the two, the matching surface contour of the parking switch must be controlled within the specified range. Since the parking switch is small in size and irregular in shape, it is necessary to inspect the installation of the parking switch when it is installed on the upper trim to ensure the accuracy of the installation of the parking switch.

[0004] In the prior art, when the installation of the parking switch is tested, it is always tested by matching it with the actual upper trim panel. Since the accuracy of the upper trim panel is unstable and the upper trim panel and the switch may be damaged during the installation and disassembly process, the existing testing scheme is unreasonable. In addition, the existing testing scheme requires the tester to make judgments based on experience during the testing process. There is no exact standard for the installation test of the parking switch, resulting in different installation effects when the parking switch is installed on the upper trim panel. Utility Model Content

[0005] In view of the problems existing in the prior art, the utility model provides a parking switch assembly inspection tool, which can avoid damage to the upper decorative plate and the switch during assembly and disassembly, thereby improving the assembly quality of the parking switch.

[0006] The technical solution of the utility model is as follows:

[0007] In a first aspect of the utility model, a parking switch assembly inspection tool is provided, comprising:

[0008] A check fixture body, wherein a through hole is provided on the check fixture body for installing a parking switch to simulate the installation environment of an upper trim panel;

[0009] The switch positioning block is fixedly installed on the inspection fixture body to position the parking switch;

[0010] The go / no-go gauge can be detachably mounted on the gauge body to detect the installation gap between the installed parking switch and the gauge body;

[0011] The surface difference gauge can be detachably mounted on the inspection fixture body to detect the installation surface difference between the installed parking switch and the inspection fixture body.

[0012] In some embodiments of the present invention, the gauge body is a square plate structure, four pillars are provided at four corners of the bottom surface of the gauge body, and the through hole is located in the middle of the gauge body.

[0013] In some embodiments of the present utility model, four switch positioning blocks are provided and arranged around the through hole on the gauge body, and the switch positioning blocks are provided with positioning grooves matching those on the parking switch.

[0014] In some embodiments of the utility model, a go / no-go gauge fixing seat and a face difference gauge fixing seat are provided on the gauge body, the go / no-go gauge is engaged in the go / no-go gauge fixing seat, and the face difference gauge is inserted in the face difference gauge fixing seat.

[0015] In some embodiments of the present invention, the go / no-go gauge comprises a through end, a stop end and an intermediate fixing portion, wherein the through end and the stop end are cylindrical rods respectively mounted at two ends of the intermediate fixing portion, and the intermediate fixing portion is engaged on a go / no-go gauge fixing seat.

[0016] In some embodiments of the present invention, the diameter of the through-end rod is 2.7 mm, and the diameter of the stop-end rod is 3.3 mm.

[0017] In some embodiments of the utility model, the face difference gauge is a rectangular plate structure, and a reference plane, a lower limit plane and an upper limit plane are provided on the face difference gauge, wherein the lower limit plane is 0.3 mm lower than the reference plane, and the upper limit plane is 0.3 mm higher than the reference plane.

[0018] In some embodiments of the present invention, the reference plane, the lower limit plane and the upper limit plane are all located on the same side of the face difference gauge, the lower limit plane is located between the reference plane and the upper limit plane, and the length of the lower limit plane is smaller than the gap between the parking switch and the gauge body, so that the lower limit plane can be placed in the gap.

[0019] In some embodiments of the present invention, a slot matching the face difference gauge is provided on the face difference gauge fixing seat, so that the face difference gauge can be inserted into the face difference gauge fixing seat.

[0020] In some embodiments of the present invention, the detection fixture body is installed on the switch to be detected.

[0021] One or more technical solutions of the utility model have the following beneficial effects:

[0022] (1) The parking switch assembly inspection fixture provided by the utility model is used to install the parking switch in the inspection fixture to simulate the installation of the parking switch on the upper trim panel, so as to inspect the assembly gap and the assembly surface difference. Compared with the traditional method of directly installing the parking switch on the actual upper trim panel, the utility model can avoid the influence of the unstable precision of the upper trim panel on the inspection result, and can also avoid damage to the upper trim panel and the switch during the disassembly and assembly process.

[0023] (2) The parking switch assembly inspection fixture provided by the utility model cooperates with the go / no-go gauge and the face difference gauge to inspect the assembly. The go / no-go gauge is used to inspect the switch gap matching surface, and the face difference gauge is used to inspect the switch face difference matching surface. The go / no-go gauge adopts the T2.7 / Z3.3 specification, and the face difference gauge is designed to be ±0.3mm. This is equivalent to formulating an inspection standard, limiting the assembly gap to between 2.-3.3mm, and limiting the assembly face difference to between ±0.3mm. Only when the through end of the go / no-go gauge passes and the stop end does not pass, and the face difference matching surface to be measured is between the upper and lower limit surfaces of the face difference gauge, the assembly meets the requirements, thereby improving the assembly quality of the parking switch.

[0024] (3) The parking switch assembly inspection fixture provided by the utility model is used as a standard part to inspect the parking switch. The inspection characteristics of the go / no-go gauge and the face difference gauge are used to inspect the assembly gap and assembly face difference of the parking switch. The utility model has the advantages of simple structure, convenient operation, high production efficiency and low cost.

[0025] (4) The parking switch assembly inspection fixture provided by the utility model has a switch positioning block and a inspection fixture body that are detachably connected. The switch positioning block can be disassembled and replaced according to the structure of the upper limit boss, the limit pin and the clamping boss of the parking switch to be inspected, thereby improving the application scope of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the structure of a parking switch to be tested;

[0027] Figure 2 It is a structural schematic diagram of the parking switch assembly inspection fixture of the utility model;

[0028] Figure 3 It is a structural schematic diagram of the face difference gauge of the utility model;

[0029] Figure 4 It is a schematic diagram of the parking switch and the inspection fixture of the utility model after being assembled.

[0030] In the figure: 1, gap matching surface; 2, face difference matching surface; 3, Z-axis limit table; 4, X-axis limit pin; 5, Y-axis limit pin; 6, clamping boss; 7, pillar; 8, gauge body; 801, gauge gap reference surface; 802, gauge face difference reference surface; 9, switch positioning block; 10, go / no-go gauge fixing seat; 11, go / no-go gauge; 1101, through end; 1102, stop end; 1103, middle fixing part; 12, face difference gauge fixing seat; 13, face difference gauge; 1301, reference surface; 1302, lower limit surface; 1303, upper limit surface. DETAILED DESCRIPTION

[0031] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0032] Example 1

[0033] The structure of the parking switch is as follows Figure 1 As shown, the circumferential side surface of the upper end of the parking switch is a gap matching surface 1, the upper surface of the parking switch is a surface difference matching surface 2, and the parking switch is provided with a Z-axis limit platform 3, an X-axis limit pin 4, a Y-axis limit pin 5 and a snap-in recess 6; when the parking switch is installed on the upper decorative surface, the Z-axis limit platform 3 is zero-sticked to the limit surface of the upper decorative panel, the X-axis limit pin 4 and the Y-axis limit pin 5 are respectively positioned in the corresponding slots of the upper decorative panel, and the snap-in boss 6 is snap-fitted with the slot of the upper decorative panel to fix the parking switch on the upper decorative panel.

[0034] In order to ensure that the parking switch does not interfere with the upper trim panel during the pressing process, and at the same time the parking switch and the upper trim panel match beautifully, reasonable gap and surface difference requirements must be defined between the parking switch and the upper trim panel. To meet the gap and surface difference requirements between the two, the matching surface contour of the parking switch must be controlled within the specified range. As mentioned in the background technology, when installing and inspecting the parking switch, it is usually matched with the actual upper trim panel. Since the precision of the upper trim panel is unstable and the upper trim panel and the switch may be damaged during the assembly and disassembly process, in addition, when performing matching inspections, staff usually make judgments based on experience, resulting in inaccurate inspection results.

[0035] In order to solve the above problems, in a typical embodiment of the present utility model, a parking switch assembly inspection tool is proposed, such as Figure 2 As shown, including:

[0036] A check fixture body 8, wherein a through hole is provided on the check fixture body 8 for installing a parking switch to simulate the installation environment of an upper trim panel;

[0037] The switch positioning block 9 is fixedly mounted on the inspection fixture body 8 to position the parking switch;

[0038] The go / no-go gauge 11 can be detachably mounted on the inspection fixture body 8 to detect the installation gap between the installed parking switch and the inspection fixture body 8;

[0039] The surface difference gauge 13 can be detachably mounted on the inspection fixture body 8 to detect the installation surface difference between the installed parking switch and the inspection fixture body 8 .

[0040] In this embodiment, the gauge body 8 is a square plate structure, which is made of wood substitute material. Four pillars 7 are arranged at the four corners of the bottom surface of the gauge body 8. The pillars are made of aluminum material. The gauge body 8 and the pillars 7 are fixed by threaded connection; the through hole is located in the middle position of the gauge body, which is used to allow the parking switch to pass through for installation.

[0041] In this embodiment, four switch positioning blocks 9 are provided, which are arranged around the through hole on the gauge body 8. The switch positioning blocks 9 are provided with positioning grooves matching those on the parking switch. The four switch positioning blocks are used to simulate the positioning features of the upper trim panel. Figure 1 The figure shows a common parking switch structure, and the structures of the limit boss, limit pin and snap-on boss provided on parking switches of different structures may be slightly different. Therefore, the positioning groove on the switch positioning block 9 can be adaptively adjusted according to the positioning structure on the parking switch. The specific structure of the switch positioning block is not described here. As long as the parking switch can be fixed on the inspection fixture body to simulate the installation of the parking switch on the upper trim panel, it can be used.

[0042] Furthermore, the switch positioning block 9 is made of steel material, and the switch positioning block is fixed to the inspection fixture body 8 by screws.

[0043] In this embodiment, a go / no-go gauge fixing seat 10 and a face difference gauge fixing seat 12 are provided on the gauge body 8, the go / no-go gauge 11 is engaged in the go / no-go gauge fixing seat 10, and the face difference gauge 13 is inserted in the face difference gauge fixing seat 12; wherein, the go / no-go gauge fixing seat 10 is fixed to the side surface of the gauge body 8 by two screws, and the face difference gauge fixing seat 12 is fixed to the side surface of the gauge body 8 by two screws. In order to avoid mutual interference between the go / no-go gauge and the face difference gauge, the go / no-go gauge fixing seat 10 and the face difference gauge fixing seat 12 can be respectively fixed to two opposite side surfaces of the gauge body 8.

[0044] Furthermore, the go / no-go gauge 11 includes a through end 1101, a stop end 1102 and an intermediate fixing portion 1103, the through end 1101 and the stop end 1102 are cylindrical rods, the intermediate fixing portion 1103 is also a cylindrical rod, and circular holes for installing the through end 1101 and the stop end 1102 are respectively provided at both ends of the intermediate fixing portion 1103, the through end 1101 and the stop end 1102 are installed at both ends of the intermediate fixing portion 1103, and the intermediate fixing portion 1103 is engaged on the go / no-go gauge fixing seat 10. Among them, the diameter of the through-end rod is 2.7 mm, and the diameter of the stop-end rod is 3.3 mm. Since the diameters of the through-end 1101 and the stop-end 1102 are relatively small, in order to facilitate taking during inspection, the diameter of the middle fixing part can be set larger. The middle mounting part can be engaged on the through-and-stop gauge fixing seat 10 to fix the through-end 1101 and the stop-end 1102, and can also be used as a handle during inspection.

[0045] like Figure 3 As shown, the face difference gauge 13 is a rectangular plate structure made of steel. A reference surface 1301, a lower limit surface 1302 and an upper limit surface 1303 are provided on the face difference gauge 13, wherein the lower limit surface 1302 is 0.3 mm lower than the reference surface, and the upper limit surface 1303 is 0.3 mm higher than the reference surface.

[0046] Furthermore, the reference surface 1301, the lower limit surface 1302 and the upper limit surface 1303 are all located on the same side of the face difference gauge 13, the lower limit surface 1302 is located between the reference surface 1301 and the upper limit surface 1303, and the length of the lower limit surface 1302 is smaller than the gap between the parking switch and the gauge body 8, so that the lower limit surface 1302 can be placed in the gap.

[0047] Furthermore, a slot matching the flush gauge 13 is provided on the flush gauge fixing seat 12 , so that the flush gauge 13 can be inserted into the flush gauge fixing seat 12 .

[0048] The method of using the parking switch assembly inspection tool provided in this embodiment is as follows:

[0049] 1. Install the parking switch on the inspection fixture body 8 and fix it with the switch positioning block 9. Figure 4 As shown, the gap reference surface 801 matches the gap matching surface 1 on the parking switch, and the face difference reference surface 802 matches the face difference matching surface on the parking switch;

[0050] 2. Remove the go / no-go gauge 11 from the go / no-go gauge fixing seat 10, and use the go / no-go gauge 11 to detect the gap between the parking switch gap matching surface and the inspection fixture body, so that the through end 1101 and the stop end 1102 of the go / no-go gauge 11 are respectively inserted into the gap. If the through end 1101 of the go / no-go gauge 11 can pass through and the stop end 1102 cannot pass through, the parking switch gap matching surface meets the requirements.

[0051] If it is other situations, such as the through end 1101 can pass through and the stop end 1102 can also pass through, it means that the gap is too large, affecting the appearance; if the through end 1101 cannot pass through, the stop end 1102 must also not pass through, it means that the gap is too small, and the pressing process of the parking switch may interfere with the upper trim panel.

[0052] 3. When the reference surface 1301 of the face difference gauge 13 is fitted with the face difference reference surface 801 of the gauge, and the face difference matching surface to be measured of the parking switch is between the upper limit surface 1302 and the lower limit surface 1303 of the face difference gauge, the face difference matching surface to be measured of the parking switch meets the requirements. If the face difference matching surface to be measured of the parking switch is lower than the lower limit surface or interferes with the upper limit surface, the face difference matching surface to be measured of the parking switch does not meet the requirements.

[0053] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A parking switch assembly inspection fixture, characterized in that: include: A check fixture body, wherein a through hole is provided on the check fixture body for installing a parking switch to simulate the installation environment of an upper trim panel; The switch positioning block is fixedly installed on the inspection fixture body to position the parking switch; The go / no-go gauge can be detachably mounted on the gauge body to detect the installation gap between the installed parking switch and the gauge body; The surface difference gauge can be detachably mounted on the inspection fixture body to detect the installation surface difference between the installed parking switch and the inspection fixture body.

2. The parking switch assembly inspection fixture according to claim 1, characterized in that: The gauge body is a square plate structure, four pillars are arranged at the four corners of the bottom surface of the gauge body, and the through hole is located in the middle of the gauge body.

3. The parking switch assembly inspection fixture according to claim 1, characterized in that: There are four switch positioning blocks, which are arranged around the through hole on the gauge body. The switch positioning blocks are provided with positioning grooves matching the parking switch.

4. The parking switch assembly inspection fixture according to claim 1, characterized in that: The gauge body is provided with a go / no-go gauge fixing seat and a face difference gauge fixing seat, the go / no-go gauge is engaged in the go / no-go gauge fixing seat, and the face difference gauge is inserted in the face difference gauge fixing seat.

5. The parking switch assembly inspection tool as claimed in claim 4, characterized in that: The go / no-go gauge comprises a through end, a stop end and an intermediate fixing portion, wherein the through end and the stop end are cylindrical rods respectively mounted at two ends of the intermediate fixing portion, and the intermediate fixing portion is engaged on a go / no-go gauge fixing seat.

6. The parking switch assembly inspection fixture according to claim 5, characterized in that: The diameter of the through-end rod is 2.7 mm, and the diameter of the stop-end rod is 3.3 mm.

7. The parking switch assembly check fixture according to claim 4, characterized in that: The face difference gauge is a rectangular plate structure, and is provided with a reference surface, a lower limit surface and an upper limit surface, wherein the lower limit surface is 0.3 mm lower than the reference surface, and the upper limit surface is 0.3 mm higher than the reference surface.

8. The parking switch assembly inspection fixture according to claim 7, characterized in that: The reference surface, lower limit surface and upper limit surface are all located on the same side of the face difference gauge, the lower limit surface is located between the reference surface and the upper limit surface, and the length of the lower limit surface is smaller than the gap between the parking switch and the gauge body, so that the lower limit surface can be placed in the gap.

9. The parking switch assembly inspection tool according to claim 4, characterized in that: The face difference gauge fixing seat is provided with a slot matching the face difference gauge, so that the face difference gauge can be inserted into the face difference gauge fixing seat.

10. The parking switch assembly inspection tool according to claim 1, characterized in that: The inspection tool body is installed on the switch to be inspected.

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