Detection tool for measuring space size of automobile front door glass lifting guide rail

Abstract

The utility model relates to a testing fixture for measuring the space size of an automobile front door glass lifting guide rail, which comprises a testing fixture body with a frame structure, and a positioning mechanism and a measuring mechanism which are arranged on the testing fixture body, the positioning mechanism is composed of a positioning pin used for positioning the X direction and the Z direction of the automobile front door assembly and a limiting block used for positioning the Y direction of the automobile front door assembly, the position of the positioning pin on the testing fixture body corresponds to the assembling hole position of a glass lifter of the automobile front door assembly, and the limiting block is attached to the installation face of an automobile door inner plate. The measuring mechanism comprises a plurality of measuring reference blocks which are symmetrically arranged, each measuring reference block is provided with three installation positions used for installing electronic surface difference rulers, and actual measurement values of the space sizes of the front and rear lifting guide rails of the front door glass of the automobile are obtained through measurement of the electronic surface difference rulers. According to the utility model, the number of forming rings for measuring the dimension chain is reduced, and the measurement work is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a measuring tool for measuring the size of automobile door glass, and belongs to the technical field of automobile assembly. BACKGROUND

[0002] With the continuous pursuit of automobile quality, comfort is required in product development and production, and the smoothness of use is also required, especially for the opening and closing parts of the automobile, which are the most frequently used areas by customers. Therefore, the size precision of the opening and closing parts must be effectively and stably controlled.

[0003] During the production of a certain type of commercial vehicle, the front door glass does not lift smoothly, with a frequency of about 10-20%. In particular, when the glass rises to the top, the lifting speed of the glass slows down and the glass is stuck.

[0004] The assembly process of the front door glass device of the commercial vehicle is as follows: the glass is placed between the inner and outer panels of the front door assembly, the triangular window is assembled, the front rail is inserted into the gap between the inner and outer panels of the front door, and the upper, middle and lower fixing points are screwed, the sealing strip is assembled in the front and rear glass rails, the rear rail is directly welded and fixed with the front door assembly, then the glass is inserted into the sealing strip from bottom to top, the resistance of the glass does not slide, at this time the lifter is assembled and fixed to the inner panel of the front door, then the glass is connected and fixed with the lifter, after the motor of the lifter is powered on, the glass moves up and down in the sealing strip of the front and rear lifting rails. The door glass assembly generally adopts free assembly without assembly auxiliary tool, mainly relying on correct size chain calculation, reasonable tolerance matching and required part precision to ensure the assembly.

[0005] The above-mentioned phenomenon of slow lifting speed and sticking of the glass is caused by the following factors: the shape and space size of the glass, the assembly position relationship size of the glass and the lifter, the assembly position relationship size of the lifter and the front door assembly, the cross-sectional shape and space size of the front and rear glass lifting rails, the cross-sectional size of the sealing strip in the glass lifting rail, and the space position size of the front and rear glass lifting rails relative to the front door assembly. Among them, the accurate and stable space size of the front and rear rails relative to the front door assembly is the key factor.

[0006] Most of the parts involved in these factors can be measured by conventional inspection methods, and it is relatively easy to judge its compliance with the design requirements, but the front and rear glass lifting guide rail relative to the front door assembly space position size measurement evaluation is more difficult, often after the glass lifting front guide rail is assembled, the relative position relationship of the guide rail and the rear guide rail, the lifter and the glass is measured by using three coordinate measurement, especially the assembled front guide rail, which needs a large number of three coordinate measurement analysis and adjustment in design verification and process control.

[0007] With the higher control requirement precision of automobile door glass assembly, the traditional method of using three coordinate measurement of door glass lifting guide rail mounting point cannot meet the requirements of product rapid verification, quality control and production efficiency, therefore a new measuring tool for measuring the space size of automobile front door glass lifting guide rail is proposed to meet the requirements of rapid design verification and assembly debugging. Content of the utility model

[0008] The technical problem to be solved by the utility model is to overcome the defects of the prior art, provide a measuring tool for measuring the space size of automobile front door glass lifting guide rail, provide a glass lifting guide rail space size measurement reference, use a standard electronic face difference ruler, can accurately measure the actual size of different sections X, Y and Z of the guide rail, quickly evaluate whether the deviation value exceeds the tolerance specified range, facilitate timely verification, modification, improvement of related design tolerance definition, process verification, improvement in production preparation stage and measurement and control in production process, and ensure the precision and consistency of front door glass guide rail assembly size.

[0009] In order to solve the above technical problems, the utility model provides a measuring tool for measuring the space size of automobile front door glass lifting guide rail, which comprises a measuring tool body in a frame structure, a positioning mechanism and a measuring mechanism arranged on the measuring tool body, the positioning mechanism is composed of positioning pins for positioning the X direction and Z direction of the automobile front door assembly and limiting blocks for positioning the Y direction of the automobile front door assembly, the positions of the positioning pins on the measuring tool body correspond to the glass lifter assembly hole positions of the automobile front door assembly, the limiting blocks are attached to the door inner plate mounting surface, the measuring mechanism comprises a plurality of symmetrical measuring reference blocks, each measuring reference block has three mounting positions for mounting electronic face difference rulers, and the actual measurement value of the space size of the front and rear glass lifting guide rails of the automobile front door is obtained by measuring the electronic face difference ruler. Wherein, the X direction is the front and rear direction of the vehicle body, the rear of the vehicle body is the positive direction of the X direction, and the front of the vehicle body is the negative direction of the X direction; the Y direction is the left and right direction of the vehicle body, the right side of the vehicle body (i.e. the side of the co-pilot) is the positive direction of the Y direction, and the left side of the vehicle body (i.e. the side of the driver) is the negative direction of the Y direction; the Z direction is the up and down direction of the vehicle body, the upward of the vehicle body is the positive direction of the Z direction, and the downward of the vehicle body is the negative direction of the Z direction.

[0010] The main and auxiliary positioning pins are installed on the holes of the glass lifting device assembly of the front door assembly of the automobile, the Y-direction limiting block on the body of the gauge is attached to the surface of the inner panel of the front door of the automobile, the manual clamp on the body of the gauge is connected with the Y-direction of the front door assembly, and the different section sizes of the front and rear lifting rails of the glass are measured by taking the reference block as the reference and using the gap / spacing gauge.

[0011] Further, the body of the gauge is in the shape of a door, comprising two glass lifting rails arranged in the vertical direction, three parallel supporting rods fixed between the glass lifting rails, and a support for installing the positioning pins fixed vertically between the second and third supporting rods.

[0012] Further, the positioning pins comprise main and auxiliary positioning pins for positioning the body of the gauge and the X and Z directions of the front door inner panel, and the auxiliary and main positioning pins are installed on the upper and lower ends of the support.

[0013] Further, the limiting block is installed on one of the glass lifting rails, the end of which is attached to the inner panel of the door and connected with the Y-direction of the door inner panel, so as to ensure the accurate position relationship between the gauge and the front door.

[0014] Further, the manual clamp is installed on the glass lifting rail opposite to the limiting block, and the end of the manual clamp is attached to the inner panel of the door and connected with the Y-direction of the front door assembly.

[0015] Further, the measuring reference block is six groups, symmetrically distributed on the two glass lifting rails and connected with the body of the gauge by bolts; each group of measuring reference blocks has the same structure, comprising a rectangular base, the upper end faces of the two sides of the base are respectively provided with a first measuring reference surface and a third measuring reference surface for detecting the Y-direction size, one side of the base is provided with a second measuring reference surface for detecting the X-direction size, and an electronic gap gauge is installed in each measuring reference surface, and the electronic gap gauge is attached to the measuring reference block when the measuring work is performed.

[0016] Compared with the prior art, the utility model has the advantages of the following: the utility model discloses glass lifting guide rail space size gauge, using glass lifting device assembly hole as positioning hole reference, directly measuring the space assembly size of glass lifting guide rail, reducing the composition ring of the size chain of measurement, ensuring the space position relation of glass lifting guide rail relative to glass and lifting device combination, the distribution of product design and manufacturing error. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structural schematic diagram of the utility model.

[0018] Figure 2 It is the structural schematic diagram of the measuring reference block of the utility model.

[0019] Figure 3 It is the installation schematic diagram of electronic face difference ruler and measuring reference block in the utility model.

[0020] Figure 4 It is the measurement principle diagram of the utility model.

[0021] Figure 5 It is the use state diagram of the utility model.

[0022] BRIEF DESCRIPTION OF DRAWINGS: 1-gauge body, 2-main positioning pin, 3-auxiliary positioning pin, 4-limiting block, 5-measuring reference block, 6-hand clamp, 7-electronic face difference ruler. DETAILED DESCRIPTION EMBODIMENT

[0023] The utility model provides a kind of gauge for measuring the space size of automobile front door glass lifting guide rail, structure as shown in Figures 1 to 3 It is mainly divided into gauge body part and measurement part.

[0024] Gauge body part includes gauge body 1, positioning pin, limiting block 4 and hand clamp 6.Gauge body is frame structure, positioning pin includes main positioning pin 2 and auxiliary positioning pin 3 for the positioning of gauge body and front door inner plate X and Z direction, main positioning pin and auxiliary positioning pin are respectively installed on automobile front door assembly glass lifting device assembly hole, limiting block is used for Y direction positioning, and is attached with door inner plate mounting surface.Gauge body on hand clamp is connected and fixed with the Y direction of automobile front door assembly, guaranteeing that gauge is stable and reliable relative to front door assembly position.

[0025] The measuring part mainly comprises six groups of measuring reference blocks 5 arranged on the gauge body, and the reference blocks are designed to have X, Y and Z direction references for reference contact surfaces of the electronic surface difference gauge.

[0026] The working process of the embodiment is as follows: the gauge is folded on the front door assembly; the main positioning pin and the auxiliary positioning pin of the gauge are inserted into the corresponding glass lifter assembly holes of the front door assembly to position and fix the gauge body; the limiting block of the gauge is in contact with the Y direction of the door inner plate; the manual clamp of the gauge body is fixed in the Y direction of the front door assembly of the automobile; the X, Y and Z direction sizes of the different sections of the glass front and rear lifting guide rail space are measured by using the electronic surface difference gauge, and the actual measured values of the guide rail space sizes are obtained; the manual clamp is loosened after the measurement, and the measuring support is taken out, and thus the space size measurement of the front door glass lifting guide rail is completed.

[0027] In addition to the above-mentioned embodiments, the utility model can have other implementation manners. Any technical scheme formed by equivalent replacement or equivalent transformation falls within the protection scope required by the utility model.

Claims

1. A gauge for measuring the spatial dimensions of a car front door window lift rail, characterized in that: The utility model provides a kind of automobile front door glass lifting guide rail space size measuring tool, including the body of gauge in frame structure, positioning mechanism and measuring mechanism set on the body of gauge, the positioning mechanism is composed of positioning pin for positioning automobile front door assembly X direction and Z direction and limiting block for positioning automobile front door assembly Y direction, the position of the positioning pin on the body of gauge corresponds with automobile front door assembly glass lifter assembly hole, the limiting block is attached with door inner plate installation surface; The measuring mechanism includes a plurality of symmetrically arranged measuring reference blocks, each measuring reference block has three mounting positions for mounting an electronic face difference gauge, and the actual measurement value of the space size of the front and rear lifting rails of the automobile front door glass is obtained by measuring with the electronic face difference gauge.

2. The gauge for measuring the space size of the automobile front door glass lifting rail according to claim 1, characterized in that: The body of gauge is in the shape of a door, including two glass lifting rails arranged in the vertical direction, three parallel support rods are fixed between the glass lifting rails, and a bracket for mounting the positioning pin is vertically fixed between the second and third support rods.

3. The gauge for measuring the space size of the automobile front door glass lifting rail according to claim 2, characterized in that: The positioning pin includes a main positioning pin and an auxiliary positioning pin for positioning the body of gauge and the front door inner plate in X and Z directions.

4. The gauge for measuring the space size of the automobile front door glass lifting rail according to claim 2, characterized in that: The auxiliary positioning pin and the main positioning pin are respectively installed at the upper and lower ends of the bracket.

5. The gauge for measuring the space size of the automobile front door glass lifting rail according to claim 2, characterized in that: The limiting block is installed on one side of the glass lifting rail, and its end is attached to the door inner plate and connected to the Y direction of the door inner plate to ensure the accurate positional relationship between the gauge and the front door.

6. The gauge for measuring the space size of the automobile front door glass lifting rail according to claim 2, characterized in that: A manual clamp is installed on the glass lifting rail opposite to the limiting block, and the end of the manual clamp is attached to the door inner plate and fixed to the Y direction of the automobile front door assembly. The measuring reference block is six groups, symmetrically distributed on the two glass lifting rails, and is tightly connected with the body of gauge by bolts. Each group of measuring reference blocks has the same structure, including a rectangular base, first and third measuring reference surfaces for detecting Y direction size are respectively opened on the upper end faces of both sides of the base, a second measuring reference surface for detecting X direction size is opened along one side of the base, and an electronic face difference gauge is respectively installed in each measuring reference surface, and the electronic face difference gauge is attached to the measuring reference block when measuring.

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