Automobile rearview mirror testing fixture

Abstract

The utility model relates to an automobile rearview mirror testing fixture, which comprises a pedestal, two supporting frames, a supporting plate and a seat block, wherein the two supporting frames are fixed at the top of the pedestal and are respectively arranged on the left and right sides; the supporting plate is obliquely fixed between the two supporting frames; the seat block is obliquely fixed on the front side of the supporting plate; the front side of the seat block is outwards provided with a positioning convex block, and a first cavity hole is formed between the end part of the positioning convex block and the outer wall of the rear side of the seat block; a plurality of supports surrounding the periphery of the seat block are fixed on the front side of the supporting plate, and a dial indicator is fixed on each support; a buckle fixing assembly is further arranged between the supporting plate and the seat block, a positioning module is further arranged on the seat block, and a second positioning block is further fixed in the first cavity hole; according to the utility model, after the automobile rearview mirror is preliminarily positioned by means of the positioning module and the second positioning block, the automobile rearview mirror can be fixed only by means of the buckle fixing assembly, so that the structure of the detection tool is simplified, the manufacturing and operation steps are simplified, the working efficiency is improved, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to a vehicle rearview mirror inspection tool. Background Art

[0002] A car rearview mirror is a mirror installed on the left and right sides of the car's head and the front of the interior. It is used to reflect the situation behind, to the sides and below the car, allowing the driver to indirectly see the situation in these positions, thereby expanding the driver's field of vision. A car rearview mirror is an assembly part, and its base is provided with a number of buckles, connecting pins and threaded holes for fixing it to the car body. In order to verify the accuracy of the external contour dimensions of the car rearview mirror, it is necessary to use a matching inspection fixture to inspect the assembled car rearview mirror.

[0003] Existing inspection fixtures for automobile rearview mirrors require multiple quick clamps or swing clamping mechanisms to fix the automobile rearview mirrors, which makes the structure of the inspection fixture more complicated and the manufacturing and operation steps more cumbersome, resulting in low work efficiency and relatively high manufacturing costs. Further improvement is needed. Utility Model Content

[0004] In view of the current status of the above-mentioned prior art, the technical problem to be solved by the present invention is to provide a car rearview mirror inspection fixture with a simplified structure to simplify the manufacturing and operation steps, thereby improving work efficiency and reducing manufacturing costs.

[0005] The technical solution adopted by the utility model to solve the above technical problems is: a car rearview mirror inspection tool, characterized by comprising a base, two brackets fixed on the top of the base and arranged on the left and right respectively, a support plate fixed obliquely between the two brackets, and a seat block fixed obliquely on the front side of the support plate;

[0006] A positioning protrusion is formed outwardly on the front side of the seat block, and a first cavity is formed between the end of the positioning protrusion and the rear outer wall of the seat block. Correspondingly, a second cavity is formed between the front and rear outer walls of the support plate to cooperate with the first cavity.

[0007] The front side of the support plate is also fixed with a plurality of supports surrounding the periphery of the seat block, and each of the supports is also fixed with a dial indicator, and the detection end of each dial indicator is set in the direction of the positioning protrusion;

[0008] A snap-fit ​​fixing assembly is further provided between the support plate and the seat block, the snap-fit ​​fixing assembly comprising a connecting block fixed to the outer wall of the rear side of the support plate, two clamping blocks rotatably connected to the connecting block and symmetrically arranged with each other, a screw connected between the connecting block and the two clamping blocks, a spacer sleeve mounted on the screw, and an internally threaded sleeve sleeved and screwed on the screw;

[0009] The front side of the connecting block is formed with two side blocks extending into the interior of the second cavity and symmetrically arranged with each other, a separator block is formed between the ends of the two side blocks, and the two clamping blocks are symmetrically arranged on both sides of the separator block, and each clamping block can be rotatably inserted and connected between the two side blocks;

[0010] A first through hole is formed in the separating block, a second through hole is formed in one of the clamping blocks to cooperate with the first through hole, the inner diameters of the second through hole and the first through hole are both larger than the outer diameter of the screw, and one end of the screw passes through the second through hole and the first through hole in sequence and is fixed to the other clamping block;

[0011] The internal threaded sleeve is arranged on the outside of a clamping block where the second through hole is located, and the spacer is arranged between the internal threaded sleeve and the clamping block;

[0012] The ends of the two clamping blocks extend into the interior of the first cavity, and a concave cavity is provided on the opposite sides of the ends of the two clamping blocks. The front edge of the opening of each concave cavity is provided with a groove distributed symmetrically with each other.

[0013] Preferably, a positioning module is also provided on the seat block, and the positioning module includes a first positioning block obliquely fixed in the first cavity and two externally threaded positioning pins vertically inserted and screwed on the rear side of the first positioning block, and a first positioning countersunk hole is opened at the root center of the two externally threaded positioning pins.

[0014] Preferably, two countersunk holes and one waist-shaped countersunk hole are opened on the rear side of the first positioning block, and the two externally threaded positioning pins are respectively inserted and screwed into the two countersunk holes. A positioning through hole is opened between the bottom center of the two countersunk holes and the front outer wall of the first positioning block, and the two positioning through holes are respectively concentrically arranged with the two first positioning countersunk holes.

[0015] Preferably, a waist-shaped through hole is provided between the center of the bottom surface of the waist-shaped countersunk hole and the front outer wall of the first positioning block.

[0016] Preferably, the ends of the two externally threaded locating pins are each formed with a concentrically arranged external hexagonal head.

[0017] Preferably, a second positioning block is fixed in the first cavity, and a plurality of second positioning countersunk holes are formed on the front side of the second positioning block.

[0018] Compared with the existing technology, the advantages of the present invention are: after the automobile rearview mirror is initially positioned by means of the positioning module and the second positioning block, the automobile rearview mirror can be fixed only by a snap-on fixing assembly, without the need to equip multiple quick clamps or swing clamping mechanisms, thereby simplifying the structure of the inspection fixture to simplify the production and operation steps, thereby improving work efficiency and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the right front side structural diagram of the utility model;

[0020] Figure 2 This is a right rear structural diagram of the utility model;

[0021] Figure 3 This is an exploded structural diagram of the right front side of the buckle fixing assembly of the present invention;

[0022] Figure 4 This is a left rear structural diagram of the positioning module of the present utility model;

[0023] Figure 5 This is a structural diagram of the right front side of the positioning module of the present utility model. DETAILED DESCRIPTION

[0024] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the usual meanings understood by persons of ordinary skill in the field to which this utility model belongs. The words "first", "second" and similar terms used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0025] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components.

[0026] like Figures 1 to 5 As shown, a car rearview mirror inspection fixture includes a base 1, two brackets 2 fixed to the top of the base 1 and arranged on the left and right sides respectively, a support plate 3 fixed obliquely between the two brackets 2, and a seat block 4 fixed obliquely to the front side of the support plate 3;

[0027] A positioning protrusion 41 is formed outwardly on the front side of the seat block 4. A first cavity 42 is defined between the end of the positioning protrusion 41 and the rear outer wall of the seat block 4. Correspondingly, a second cavity 31 is defined between the front and rear outer walls of the support plate 3 to cooperate with the first cavity 42.

[0028] The front side of the support plate 3 is also fixed with a plurality of supports 5 surrounding the periphery of the seat block 4, and each support 5 is also fixed with a dial indicator 6, and the detection end of each dial indicator 6 is set in the direction of the positioning protrusion 41;

[0029] A snap-fit ​​fixing assembly 7 is further provided between the support plate 3 and the seat block 4. The snap-fit ​​fixing assembly 7 includes a connecting block 71 fixed to the outer wall of the rear side of the support plate 3, two clamping blocks 72 rotatably connected to the connecting block 71 and symmetrically arranged with each other, a screw 74 inserted and connected between the connecting block 71 and the two clamping blocks 72, a spacer 75 sleeved on the screw 74, and an internally threaded sleeve 76 sleeved and screwed on the screw 74.

[0030] The front side of the connecting block 71 is formed with two side blocks 711 extending into the interior of the second cavity 31 and symmetrically arranged with each other. A separator block 712 is formed between the ends of the two side blocks 711. Two clamping blocks 72 are symmetrically arranged on both sides of the separator block 712. Each clamping block 72 can be rotatably inserted and connected between the two side blocks 711.

[0031] A first through hole 713 is defined in the partition block 712, and a second through hole 721 is defined in one of the clamping blocks 72 to cooperate with the first through hole 713. The inner diameters of the second through hole 721 and the first through hole 713 are both larger than the outer diameter of the screw 74. One end of the screw 74 passes through the second through hole 721 and the first through hole 713 in sequence and is fixed to the other clamping block 72.

[0032] The internal threaded sleeve 76 is provided on the outside of a clamping block 72 where the second through hole 721 is located, and the spacer 75 is provided between the internal threaded sleeve 76 and the clamping block 72;

[0033] The ends of the two clamping blocks 72 extend into the interior of the first cavity 42. A cavity 722 is formed on the opposite sides of the ends of the two clamping blocks 72. A groove 723 symmetrically distributed is formed on the front edge of the opening of each cavity 722.

[0034] A positioning module 8 is also provided on the seat block 4, which includes a first positioning block 81 obliquely fixed in the first cavity 42 and two externally threaded positioning pins 82 vertically inserted and screwed on the rear side of the first positioning block 81. A first positioning countersunk hole 821 is provided at the root center of the two externally threaded positioning pins 82.

[0035] Two countersunk holes 811 and a waist-shaped countersunk hole 813 are opened on the rear side of the first positioning block 81, and two external threaded positioning pins 82 are respectively inserted into the two countersunk holes 811 and screwed in. A positioning through hole 812 is opened between the bottom center of the two countersunk holes 811 and the front outer wall of the first positioning block 81. The two positioning through holes 812 are respectively concentrically arranged with the two first positioning countersunk holes 821.

[0036] A waist-shaped through hole 814 is defined between the center of the bottom surface of the waist-shaped countersunk hole 813 and the front outer wall of the first positioning block 81 .

[0037] The ends of the two external threaded positioning pins 82 are each formed with an external hexagonal head 822 arranged concentrically outward.

[0038] A second positioning block 9 is also fixed in the first cavity 42 , and a plurality of second positioning countersunk holes 91 are formed on the front side of the second positioning block 9 .

[0039] Working principle:

[0040] Place the base of the rearview mirror onto the positioning protrusion 41 in the direction of the seat block 4, and at the same time, insert the corresponding circular protrusions on the base of the rearview mirror into the two positioning through holes 812 on the first positioning block 81 in the positioning module 8 and the several second positioning countersunk holes 91 on the second positioning block 9 through the first cavity 42 to complete the preliminary positioning, and then insert the waist-shaped protrusions on the base of the rearview mirror into the waist-shaped through holes 814 on the first positioning block 81.

[0041] Before this, it is also necessary to screw the internal threaded sleeve 76 in the snap fixing assembly 7 to gradually move it away from the adjacent clamping block 72, thereby gradually increasing the distance between the spacer 75 and the two clamping blocks 72, so that a certain gap appears between the spacer 75 and the two clamping blocks 72. Since the inner diameters of the second through hole 721 and the first through hole 713 are both larger than the outer diameter of the screw 74, the two clamping blocks 72 can swing outward by utilizing the above-mentioned gap, thereby expanding the distance between the ends of the two clamping blocks 72, and the screw 74 can utilize the gap between it and the second through hole 721 and the first through hole 713 to move inside the second through hole 721 and the first through hole 713, thereby not restricting the swing of the two clamping blocks 72.

[0042] When the rearview mirror completes the initial positioning, the buckle on its base just extends into the space between the ends of the two clamping blocks 72. Then the internal threaded sleeve 76 is slowly screwed in the opposite direction to gradually reduce the distance between the spacer 75 and the two clamping blocks 72, thereby forcing the ends of the two clamping blocks 72 to move closer to each other, thereby wrapping the buckle in the two concave cavities 722. The two grooves 723 are assembled to form a hole for the root of the buckle to pass through, so that the rearview mirror is fixed to the seat block 4 with the help of the buckle.

[0043] Finally, screw the threaded end of each dial indicator 6 in turn to move the detection end of each dial indicator 6 toward the rearview mirror until the detection end of each dial indicator 6 is pressed against the corresponding outer wall of the rearview mirror, and then check whether the external contour accuracy of the rearview mirror is qualified based on the reading of the dial indicator 6.

[0044] The end of each circular boss passing through the positioning hole 812 will extend into the first positioning countersunk hole 821 on the corresponding externally threaded positioning pin 82. If the end of the circular boss touches the bottom of the first positioning countersunk hole 821 before it is in place, you can use a hexagonal screwdriver 10 and put its head on the outside of the external hexagonal head 822 on the externally threaded positioning pin 82 and screw it, thereby facilitating the externally threaded positioning pin 82 to move back and forth based on the principle of spiral connection to adjust the distance between it and the circular boss, so that the end of the circular boss will not touch the bottom of the first positioning countersunk hole 821 before it is in place.

[0045] After the automobile rearview mirror is initially positioned by the positioning module 8 and the second positioning block 9, the utility model can complete the fixation of the automobile rearview mirror only by the snap-fit ​​fixing assembly 7, without the need to equip multiple quick clamps or swing clamping mechanisms, thereby simplifying the structure of the inspection fixture to simplify the production and operation steps, thereby improving work efficiency and reducing production costs.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A car rearview mirror inspection tool, characterized in that: The utility model comprises a pedestal, two supports fixed on the top of the pedestal and arranged on the left and right sides respectively, a support plate fixed obliquely between the two supports, and a seat block fixed obliquely on the front side of the support plate; A positioning protrusion is formed outwardly on the front side of the seat block, and a first cavity is formed between the end of the positioning protrusion and the rear outer wall of the seat block. Correspondingly, a second cavity is formed between the front and rear outer walls of the support plate to cooperate with the first cavity. The front side of the support plate is also fixed with a plurality of supports surrounding the periphery of the seat block, and each of the supports is also fixed with a dial indicator, and the detection end of each dial indicator is set in the direction of the positioning protrusion; A snap-fit ​​fixing assembly is further provided between the support plate and the seat block, the snap-fit ​​fixing assembly comprising a connecting block fixed to the outer wall of the rear side of the support plate, two clamping blocks rotatably connected to the connecting block and symmetrically arranged with each other, a screw connected between the connecting block and the two clamping blocks, a spacer sleeve mounted on the screw, and an internally threaded sleeve sleeved and screwed on the screw; The front side of the connecting block is formed with two side blocks extending into the interior of the second cavity and symmetrically arranged with each other, a separator block is formed between the ends of the two side blocks, and the two clamping blocks are symmetrically arranged on both sides of the separator block, and each clamping block can be rotatably inserted and connected between the two side blocks; A first through hole is formed in the separating block, a second through hole is formed in one of the clamping blocks to cooperate with the first through hole, the inner diameters of the second through hole and the first through hole are both larger than the outer diameter of the screw, and one end of the screw passes through the second through hole and the first through hole in sequence and is fixed to the other clamping block; The internal threaded sleeve is arranged on the outside of a clamping block where the second through hole is located, and the spacer is arranged between the internal threaded sleeve and the clamping block; The ends of the two clamping blocks extend into the interior of the first cavity, and a concave cavity is provided on the opposite sides of the ends of the two clamping blocks. The front edge of the opening of each concave cavity is provided with a groove distributed symmetrically with each other.

2. The automobile rearview mirror inspection tool according to claim 1, characterized in that: The seat block is also provided with a positioning module, which includes a first positioning block obliquely fixed in the first cavity and two externally threaded positioning pins vertically inserted and screwed on the rear side of the first positioning block. A first positioning countersunk hole is provided at the root center of the two externally threaded positioning pins.

3. The automobile rearview mirror inspection tool according to claim 2, characterized in that: Two countersunk holes and one waist-shaped countersunk hole are opened on the rear side of the first positioning block, and the two external threaded positioning pins are respectively inserted into the two countersunk holes and screwed in. A positioning through hole is opened between the bottom center of the two countersunk holes and the front outer wall of the first positioning block, and the two positioning through holes are respectively concentrically arranged with the two first positioning countersunk holes.

4. The automobile rearview mirror inspection tool according to claim 3, characterized in that: A waist-shaped through hole is provided between the center of the bottom surface of the waist-shaped countersunk hole and the front outer wall of the first positioning block.

5. The automobile rearview mirror inspection tool according to claim 2, characterized in that: The ends of the two external thread positioning pins are each formed with an external hexagonal head arranged concentrically outward.

6. The automobile rearview mirror inspection tool according to claim 1, characterized in that: A second positioning block is also fixed in the first cavity, and a front side of the second positioning block is provided with a plurality of second positioning countersunk holes.

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