Checking fixture for automobile chassis bracket

Abstract

The utility model relates to the technical field of automobile part detection, in particular to an automobile chassis bracket detection tool. An automobile chassis bracket testing fixture comprises a base. The base body is installed on the base, the surface of the side, away from the base, of the base body is a first plane, and the base body is provided with a valley part; the valley part is provided with a curved groove, a concave groove and a protruding part, and the valley part is further provided with a first positioning hole, a second positioning hole, a first detection hole, a second detection hole and a third detection hole; the device further comprises a pressing clamp, a block-up block, a go-no go gauge and a go-no go block. According to the utility model, even if a worker is dim, tired and sluggish along with the increase of working hours, the qualification judgment of the detection pin and the go / no-go gauge still does not go wrong; therefore, when the automobile chassis bracket is detected by using the automobile chassis bracket detection tool provided by the utility model, the subjective error rate of workers can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts detection, in particular to an automobile chassis bracket detection tool. Background Art

[0002] like Figure 1 The figure shows the structure diagram of the automobile chassis bracket. The automobile chassis bracket is a nearly bilaterally symmetrical stamped part, which is processed by stamping die forming. After the stamping is completed, it is necessary to measure the position and contour of the automobile chassis bracket product according to the size requirements of the design drawing to detect whether its appearance is within the range required by the drawing.

[0003] like Figure 1 It can be seen that the automobile chassis bracket, i.e. the product to be tested, has multiple holes processed thereon, and the shape of its side is a thin-edge structure extending along a curve, and its upper and lower surfaces are not flat, and the upper surface has a protrusion, and the lower surface has a groove; the qualified inspection of the product to be tested requires measuring the position of multiple holes, as well as the contours of the side, upper surface, and lower surface; it is very difficult to measure with a caliper or a ruler in the prior art, and as the working hours increase, workers are prone to dazzle, fatigue, laziness, etc., which leads to inaccurate readings or even wrong readings.

[0004] If a checking fixture combining a detection pin and a go / no-go gauge to measure the position and contour of a product can be designed to avoid using a caliper or a ruler, the above-mentioned disadvantages can be reduced to a certain extent. However, such a tool is lacking in the prior art.

[0005] Therefore, the technical problem existing in the prior art is the lack of a gauge capable of measuring the chassis bracket of an automobile, which can at least combine a detection pin and a go / no-go gauge to assist workers in measuring the position of multiple holes on the product to be tested, as well as the contours of the side, upper surface, and lower surface. Utility Model Content

[0006] Aiming at the technical problems in the prior art, there is a lack of a gauge capable of measuring an automobile chassis bracket, which can at least combine a detection pin and a go / no-go gauge to assist workers in measuring the position of multiple holes on a product to be tested, as well as the contours of the side, upper surface and lower surface; the utility model provides an automobile chassis bracket gauge.

[0007] The utility model is realized by the following technical solutions:

[0008] An automobile chassis bracket inspection fixture comprises a base;

[0009] It also includes a base body, which is installed on the base, a surface of the base body facing away from the base is a first plane, and a concave valley portion is provided on the base body;

[0010] The concave valley portion is provided with a curved groove, which is a groove structure extending along a curved path, the head end and the tail end of the curved groove do not intersect, and the cross-sectional width of the curved groove is configured as a preset width;

[0011] The concave valley portion is further provided with a concave groove and a protruding portion, wherein the concave groove is located at a first preset position, and the protruding portion is located at a second preset position;

[0012] The concave valley portion is further provided with a first positioning hole and a second positioning hole, a first detection hole, a second detection hole and a third detection hole; wherein, along the first direction, the first positioning hole is located between the first detection hole and the second positioning hole, and along the second direction, the second positioning hole is located between the second detection hole and the third detection hole; the first direction is perpendicular to the second direction and is parallel to the first plane respectively;

[0013] Also includes a first positioning pin detachably inserted into the first positioning hole, a second positioning pin detachably inserted into the second positioning hole, a first detection pin detachably inserted into the first detection hole, a second detection pin detachably inserted into the second detection hole, and a third detection pin detachably inserted into the third detection hole;

[0014] Also included is a clamping clamp, which is mounted on the base and located on one side of the base;

[0015] It also includes a padding block, which is detachably and movably arranged in the concave valley portion;

[0016] It also comprises a go / no-go gauge and a go / no-go block, which are detachably arranged on the base.

[0017] Furthermore, at least a first positioning surface is provided on the side surface of the base body, the first positioning surface is perpendicular to the first plane, and the head end and the tail end of the curved groove intersect with the first positioning surface respectively.

[0018] Furthermore, it also includes a first clamping portion, which is mounted on the base; the go / no-go gauge is detachably arranged on the first clamping portion;

[0019] It also includes a second clamping part, which is installed on the base; and the stop block is detachably arranged on the second clamping part.

[0020] Furthermore, the first clamping portion includes a first elastic sheet and a second elastic sheet, and the distance between the first elastic sheet and the second elastic sheet is adjustable;

[0021] The second clamping portion has the same structure as the first clamping portion.

[0022] Furthermore, along the first direction, the base body is provided with a guide channel, one end of the guide channel intersects with one of the side walls of the base body to form an opening, and the other end of the guide channel communicates with the space formed by the concave valley portion;

[0023] The first direction and the first plane are parallel to each other.

[0024] Furthermore, it also includes a handle, which is arranged on one side of the base.

[0025] Furthermore, there are multiple clamping clamps, and the multiple clamping clamps are arranged around the base.

[0026] Furthermore, the number of the substrates is at least two.

[0027] Furthermore, the number of the protrusions is two.

[0028] Compared with the prior art, the advantages of the present invention are:

[0029] 1. In this embodiment, a vehicle chassis bracket inspection fixture is proposed, which fixes the product to be tested at a specified position relative to the base through a recessed groove, a protruding portion, a first positioning pin, and a second positioning pin; the opening position of the product to be tested is detected through a plurality of detection holes (i.e., a first detection hole, a second detection hole, and a third detection hole) and detection pins (i.e., a first detection pin, a second detection pin, and a third detection pin) corresponding to the plurality of detection holes respectively; the contour of the side, upper surface, and lower surface of the product to be tested is also detected through a go / no-go gauge and a go / no-go block; therefore, the vehicle chassis bracket inspection fixture proposed in this embodiment can be combined with the detection pins and the go / no-go gauge to assist workers in measuring the position of multiple holes of the product, as well as the contour of the side, upper surface, and lower surface; therefore, this embodiment solves the technical problem in the prior art: there is a lack of an inspection fixture capable of measuring the vehicle chassis bracket, which can at least be combined with the detection pins and the go / no-go gauge to assist workers in measuring the position of multiple holes on the product to be tested, as well as the contour of the side, upper surface, and lower surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the automobile chassis bracket;

[0031] Figure 2 This is a structural diagram of the automobile chassis bracket inspection fixture;

[0032] Figure 3 is a schematic diagram of the structure of the matrix;

[0033] Figure 4 for Figure 2 Schematic diagram of the local structure;

[0034] Figure 5 is a schematic structural diagram of the first clamping portion;

[0035] Figure 6 It is a structural schematic diagram of the pass-stop block.

[0036] Markings in the figure: base (1), base (2), first plane (3), valley (4), curved groove (5), recessed groove (6), protrusion (7), first positioning hole (8), second positioning hole (9), first detection hole (10), second detection hole (11), third detection hole (12), first positioning pin (13), second positioning pin (14), first detection pin (15), second detection pin (16), third detection pin (17), clamping clamp (18), spacer block (19), go / no-go gauge (20), go / no-go block (21), first positioning surface (22), first clamping portion (23), first spring sheet (24), second spring sheet (25), guide channel (26), handle (27). DETAILED DESCRIPTION

[0037] The following is a further non-restrictive detailed description of the utility model technical solution in conjunction with the preferred embodiment and its accompanying drawings. In the description of the utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings. In addition, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and cannot be understood as limitations on the utility model.

[0038] Example 1

[0039] like Figure 2 to Figure 4As shown, the present embodiment proposes an automobile chassis bracket inspection fixture, which includes a base 1; and also includes a base 2, the base 2 is installed on the base 1, the side surface of the base 2 facing away from the base 1 is a first plane 3, and the base 2 is provided with a concave valley portion 4; the concave valley portion 4 is provided with a curved groove 5, the curved groove 5 is a groove structure extending along a curved path, the head end and the tail end of the curved groove 5 do not intersect, and the cross-sectional width of the curved groove 5 is configured to be a preset width; the concave valley portion 4 is also provided with a recessed groove 6 and a protrusion 7; the concave valley portion 4 is also provided with a first positioning hole 8 and a second positioning hole 9, a first detection hole 10, a second detection hole 11 and a third detection hole 12; wherein, along the first direction, the first positioning hole 8 is located between the first detection hole 10 and the second positioning hole 9, and along the second direction, the second positioning hole 9 is located between the second detection hole 10 and the second detection hole 11. The measuring hole 11 and the third measuring hole 12 are interposed; the first direction is perpendicular to the second direction and are parallel to the first plane 3 respectively; it also includes a first locating pin 13 detachably inserted into the first locating hole 8, a second locating pin 14 detachably inserted into the second locating hole 9, a first detecting pin 15 detachably inserted into the first detecting hole 10, a second detecting pin 16 detachably inserted into the second detecting hole 11, and a third detecting pin 17 detachably inserted into the third detecting hole 12; it also includes a clamping clamp 18, which is mounted on the base 1 and is located on one side of the base 2; it also includes a padding block 19, which is arranged in the concave valley 4; it also includes a go / no-go gauge 20 and a go / no-go block 21, which are detachably arranged on the base 1.

[0040] The base 1 may adopt one of the structures in the prior art. In this embodiment, a preferred embodiment is proposed in which the base 1 is a flat plate structure.

[0041] The base 2 is arranged on the base 1, and the two can be detachably connected or non-detachably connected, which is not limited here; in the present embodiment, the number of the bases 2 is at least two; the shape of the base 2 is a special-shaped structure similar to the shape of the automobile chassis bracket product, and in order to facilitate the process and reduce the difficulty of the process, the base 2 can be configured to be composed of a first base block and a second base block, and the first base block and the second base block are processed separately in the process, and then the processed first base block and the second base block are assembled together to form the base 2 structure.

[0042] The concave valley portion 4 is a groove-shaped structure similar in shape to the automobile chassis bracket product. The concave valley portion 4 is formed by removing part of the material from the base 2, and is recessed from the first plane 3 of the base 2 toward the base 1; a concave groove 6 and a protrusion 7 are also arranged in the concave valley portion 4, the concave groove 6 is located at a first preset position, and the protrusion 7 is located at a second preset position. When docking the automobile chassis bracket product, the concave groove 6 is used to accommodate the convex shell of the automobile chassis bracket product, and the protrusion 7 is used to be inserted into the groove body accommodating the automobile chassis bracket product, so as to achieve the pre-fixing effect of the product to be tested; in this embodiment, the number of the protrusions 7 is two, and they are symmetrically distributed, and the number of the concave groove 6 is one.

[0043] The contour of the curved path extended by the curved groove 5 is also similar to the shape of the automobile chassis bracket product; the cross-sectional width of the curved groove 5 is configured as a preset width, and the preset width is configured according to the specific situation. When the product to be tested is placed in the concave valley, the groove wall of the curved groove 5 acts as a limit for the product to be tested along the second direction; and the gap between the groove wall of the curved groove 5 and the side of the product to be tested can also be detected by a go / no-go gauge to check the contour of the side of the product to be tested.

[0044] The first positioning hole 8 and the second positioning hole 9 are respectively through holes or blind holes. Preferably, the first positioning hole 8 is arranged at the center of the recessed groove 6, and the second positioning hole 9 is arranged between the two protrusions 7; in this embodiment, a first positioning pin 13 matching the first positioning hole 8 and a second positioning pin 14 matching the second positioning hole 9 are also respectively configured; the first positioning pin 13 is inserted into the waist hole of the product to be tested and the first positioning hole 8 at the same time, and the second positioning pin 14 is inserted into the bottom hole and the second positioning hole 9 of the product to be tested at the same time, so that the product to be tested is fixed along the first direction and the second direction.

[0045] That is, in this embodiment, the product to be tested is positioned on the base 2 along the first direction and the second direction by means of the recessed groove 6, the protruding portion 7, the first positioning pin 13, and the second positioning pin 14, and then the product to be tested is positioned on the base 2 along the third direction by means of the closed clamp 18, and the third direction is perpendicular to the first plane; the product to be tested, after being positioned by the recessed groove 6, the protruding portion 7, the first positioning pin 13, and the second positioning pin 14, is at a specified position on the base 2.

[0046] The first detection hole 10, the second detection hole 11 and the third detection hole 12 can be through holes or blind holes. In this embodiment, a first detection pin 15 matching the first detection hole 10, a second detection pin 16 matching the second detection hole 11, and a third detection pin 17 matching the third detection hole 12 are respectively configured for detecting the position of the upper hole, the first side hole and the second side hole of the automobile chassis bracket product. Details are shown below.

[0047] There is no limitation on the shape of the raising block 19. In the present embodiment, preferably, the raising block 19 is a columnar structure with a circular ring-shaped cross section. Along the third direction, the height of the raising block is configured as a preset height. The function of the raising block 19 is as follows: during detection, the product to be tested is raised so that there is a gap between the lower surface of the product to be tested and the upper surface of the valley portion, and the gap is configured as a preset gap. The go / no-go gauge extends into the gap to measure the contour of the lower surface of the product to be tested. See below for details.

[0048] The go / no-go gauge 20 can be processed into various specifications according to actual conditions, which depends on the specific situation and is not limited here. Preferably, there are multiple go / no-go gauges 20, which are used to detect the above-mentioned contour degree; in addition, this embodiment also includes an aperture go / no-go gauge.

[0049] like Figure 6 As shown, the stop block 21, also known as the height stop gauge, can also be processed into various specifications according to actual conditions. It depends on the specific situation and is not limited here. It is used to detect whether the thickness direction of the automobile chassis bracket product, that is, the upper surface contour in the third direction meets the specifications. Details are shown below.

[0050] The structure of the clamping clamp 18 is prior art and will not be elaborated here; it has an open state and a closed state; in the present embodiment, there are multiple clamping clamps 18, and multiple clamping clamps 18 are arranged around the base 2; in the present embodiment, the clamping clamp 18 adopts the 102-b model clamping clamp of the good helper manufacturer; the clamping clamp 18 can clamp the product to be tested after it is set in the valley part, increase the friction between the product and the inspection fixture, and thereby make the product and the inspection fixture relatively fixed, to avoid being squeezed by the go / no-go gauge during the measurement process, and the product to be tested moves relative to the base 2.

[0051] like Figure 2 to Figure 4 As shown, further, in this embodiment, at least a first positioning surface 22 is provided on the side surface of the base 2, the first positioning surface 22 is perpendicular to the first plane 3, and the head end and the tail end of the curved groove 5 intersect with the first positioning surface 22 respectively; after the product to be tested is placed in the concave portion of the inspection fixture, the plane where the side surface of the tail of the product to be tested is located is on the same plane as the first positioning surface 22, which serves as one of the judgment factors for whether the product is placed qualified.

[0052] like Figure 2 to Figure 4As shown, further, in the foregoing of the present embodiment, it is mentioned that the product is raised by the padding block so that there is a gap between the lower surface of the product to be tested and the upper surface of the concave valley portion. At present, the go / no-go gauge can only be inserted into the gap between the lower surface of the tail end of the product to be tested and the upper surface of the concave valley portion, that is, only the contour of the tail end of the product to be tested can be measured, and the contour of the head end cannot be measured. In order for the go / no-go gauge to be able to extend into the gap between the lower surface of the head end of the product to be tested and the upper surface of the concave valley portion to measure the contour of the head end, the present embodiment also includes the following technical solutions:

[0053] Along the first direction, the base 2 is provided with a guide channel 26, one end of the guide channel 26 intersects with one of the side walls of the base 2 to form an opening, and the other end of the guide channel 26 is communicated with the space formed by the concave valley 4; during testing, the go / no-go gauge can be extended from the guide channel 26 into the gap between the lower surface of the head end of the product to be tested and the upper surface of the concave valley 4.

[0054] The steps for detection are as follows:

[0055] A. Keep all hold-down clamps 18 in the open position.

[0056] B. Place the product to be tested in the concave valley 4, insert the convex shell of the product to be tested into the concave groove 6, insert the groove body of the product to be tested into the protrusion 7, and the lower surface of the product to be tested is in contact with the pad block 19; at this time, check whether the product to be tested and the inspection fixture meet the following conditions: the inner surface of the convex shell of the product to be tested is in contact with the groove wall of the concave groove 6, and the side surface of the tail of the product to be tested is in the same plane with the first positioning surface 22; if so, continue to perform the following steps;

[0057] C. Insert the first positioning pin 13 into the waist hole and the first positioning hole 8 of the product to be tested at the same time, and insert the second positioning pin 14 into the bottom hole and the second positioning hole 9 of the product to be tested at the same time, so that the product to be tested is temporarily fixed along the first direction and the second direction; then adjust the clamp 18 to a closed state, so that the product to be tested and the inspection fixture are relatively fixed;

[0058] D. Use the first detection pin 15 to detect the position of the upper hole of the product to be tested. If the first detection pin 15 can pass through the upper hole of the product to be tested and the first detection hole 10 at the same time, the position of the upper hole is qualified, otherwise it is unqualified; use the same method to sequentially detect the position of the first side hole and the second side hole of the product to be tested by the second detection pin 16 and the third detection pin 17;

[0059] E. Use a go / no-go gauge to detect the side profile of the product to be tested. Insert the profile go / no-go gauge into the gap between the side of the product to be tested and the groove wall of the curved groove 5. If the go gauge is passed and the no-go gauge is stopped, the side profile of the product to be tested is qualified, otherwise it is unqualified.

[0060] Insert the go and stop gauges into the gap between the lower surface of the head end of the product to be tested and the upper surface of the valley 4, and into the gap between the lower surface of the tail end of the product to be tested and the upper surface of the valley 4, respectively. If the go gauge is passed and the stop gauge is stopped, the contours of the head end and the tail end of the product to be tested are qualified, otherwise they are unqualified;

[0061] F. Use the pass-stop block 21 to detect the upper surface contour of the product to be tested, that is, to detect the spacing between the upper surface of the product to be tested and the first plane along the third direction. If the pass gauge is passed and the stop gauge is stopped, the upper surface contour of the product to be tested is qualified, otherwise it is unqualified;

[0062] G. Release the clamp 18 and remove the product to be tested.

[0063] H. Use the hole diameter through and stop gauges to detect the hole diameters of the waist hole, bottom hole, first side hole, and second side hole of the product to be tested. If the through gauge is through and the stop gauge is not, it is qualified, otherwise it is unqualified.

[0064] As can be seen from the background technology, the technical problem existing in the prior art is the lack of a gauge that can measure the chassis bracket of an automobile. The gauge can at least combine a detection pin and a go / no-go gauge to assist workers in measuring the position of multiple holes on the product to be tested, as well as the contours of the side, upper surface, and lower surface.

[0065] In this embodiment, a vehicle chassis bracket inspection fixture is proposed, which fixes the product to be tested at a specified position relative to the base 2 through the recessed groove 6, the protruding portion 7, the first positioning pin 13, and the second positioning pin 14; it also detects the hole position of the product to be tested through a plurality of detection holes (i.e., the first detection hole 10, the second detection hole 11, and the third detection hole 12) and the detection pins corresponding to the plurality of detection holes (i.e., the first detection pin 15, the second detection pin 16, and the third detection pin 17); it also detects the position of the product to be tested through the go / no-go gauge and the go / no-go block. The contour of the product side, upper surface and lower surface; therefore, the automobile chassis bracket inspection fixture proposed in this embodiment can be combined with the detection pin and the go / no-go gauge to assist workers in measuring the position of multiple holes of the product, as well as the contour of the side, upper surface and lower surface; therefore, this embodiment solves the technical problem in the prior art: there is a lack of an inspection fixture that can measure the automobile chassis bracket, which can at least be combined with the detection pin and the go / no-go gauge to assist workers in measuring the position of multiple holes on the product to be tested, as well as the contour of the side, upper surface and lower surface.

[0066] Furthermore, when the automobile chassis bracket inspection fixture of the present embodiment is used to test the product to be tested, the position and contour of the product to be tested are measured by the detection pin and the go / no-go gauge respectively. If the detection pin can smoothly pass through the hole to be tested on the product and the hole corresponding to the hole to be tested on the inspection fixture, it is considered qualified. If the go / no-go gauge can pass and the stop gauge can stop, it is considered qualified, and there is no need for workers to read the readings. Even if the workers become dizzy, tired, or lazy as the working hours increase, the qualified judgment of the detection pin and the go / no-go gauge will not be wrong. In other words, it is less difficult for workers to judge whether the detection pin can be inserted smoothly and whether the go / no-go gauge is pass or stop than to read the caliper reading. Therefore, using the automobile chassis bracket inspection fixture of the present embodiment to inspect the automobile chassis bracket can reduce the subjective error rate of workers.

[0067] Furthermore, in the prior art, when using calipers for measurement, one worker is usually required to hold the product to be measured and keep it still, while another worker measures the product to be measured. This measurement process requires at least two workers, resulting in high labor costs.

[0068] When the automobile chassis bracket inspection fixture of this embodiment is used to test the product to be tested, it is only necessary to place the base 1 on the work platform, and then fix the product to be tested on the base 2, and the measurement can be completed by only one worker; in other words, in this embodiment, the product to be tested is directly fixed by the inspection fixture, which replaces the method of having a worker hold the product to be tested in the prior art; compared with the prior art, this embodiment requires lower labor costs.

[0069] like Figure 2 , Figure 5 As shown, further, in this embodiment, the following technical solutions are also included: the automobile chassis bracket inspection fixture also includes a first clamping portion 23, which is installed on the base 1; the go / no-go gauge 20 is detachably arranged on the first clamping portion 23; and also includes a second clamping portion, which is installed on the base 1; the go / no-go block 21 is detachably arranged on the second clamping portion.

[0070] Specifically, the first clamping part 23 includes a first spring sheet 24 and a second spring sheet 25, and the distance between the first spring sheet 24 and the second spring sheet 25 is adjustable; the second clamping part has the same structure as the first clamping part 23. For example, the first clamping part 23 is a structure formed by bending an elastic steel sheet. When the first clamping part 23 is in a relaxed state, the distance between the first spring sheet 24 and the second spring sheet 25 is the minimum distance, and the minimum distance is L. If a go / no-go gauge is inserted between the first spring sheet 24 and the second spring sheet 25, and the width of the go / no-go gauge is greater than L, the distance between the first spring sheet 24 and the second spring sheet will gradually increase during the insertion of the go / no-go gauge. The elastic steel sheet has a tendency to rebound due to its own elasticity, and the go / no-go gauge is clamped by the first spring sheet 24 and the second spring sheet 25.

[0071] In this embodiment, a first clamping portion and a second clamping portion are provided to detachably arrange the go / no-go gauge and the go / no-go block on the base 1, so as to avoid the go / no-go gauge having nowhere to be placed or even being lost after use.

[0072] Furthermore, the present embodiment also includes the following technical solution: the automobile chassis bracket inspection fixture also includes a handle 27, and the handle 27 is arranged on one side of the base 1. In the present embodiment, the handle 27 is arranged on one side of the base 1, so that the worker can lift and transfer the automobile chassis bracket inspection fixture as a whole through the handle 27.

[0073] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An automobile chassis bracket inspection fixture, characterized in that: comprising a base (1); It also includes a base (2), the base (2) is mounted on the base (1), a surface of the base (2) on one side facing away from the base (1) is a first plane (3), and the base (2) is provided with a concave valley portion (4); The concave valley portion (4) is provided with a curved groove (5), the curved groove (5) is a groove structure extending along a curved path, the head end and the tail end of the curved groove (5) do not intersect, and the cross-sectional width of the curved groove (5) is configured to be a preset width; The valley portion (4) is further provided with a recessed groove (6) and a protruding portion (7), wherein the recessed groove (6) is located at a first preset position, and the protruding portion (7) is located at a second preset position; The concave valley portion (4) is further provided with a first positioning hole (8) and a second positioning hole (9), a first detection hole (10), a second detection hole (11) and a third detection hole (12); wherein, along the first direction, the first positioning hole (8) is located between the first detection hole (10) and the second positioning hole (9), and along the second direction, the second positioning hole (9) is located between the second detection hole (11) and the third detection hole (12); the first direction and the second direction are perpendicular to each other and are respectively parallel to the first plane (3); It also includes a first positioning pin (13) detachably inserted into the first positioning hole (8), a second positioning pin (14) detachably inserted into the second positioning hole (9), a first detection pin (15) detachably inserted into the first detection hole (10), a second detection pin (16) detachably inserted into the second detection hole (11), and a third detection pin (17) detachably inserted into the third detection hole (12); It also includes a clamping clamp (18), which is mounted on the base (1) and located on one side of the base (2); It also includes a padding block (19), which is detachably and movably arranged in the concave valley portion (4); It also comprises a go / no-go gauge (20) and a go / no-go block (21), and the go / no-go gauge (20) and the go / no-go block (21) are detachably arranged on the base (1).

2. The automobile chassis bracket inspection fixture according to claim 1, characterized in that: At least a first positioning surface (22) is provided on the side surface of the base body (2), the first positioning surface (22) and the first plane (3) are perpendicular to each other, and the head end and the tail end of the curved groove (5) respectively intersect with the first positioning surface (22).

3. The automobile chassis bracket inspection fixture according to claim 1 or 2, characterized in that: It also includes a first clamping portion (23), which is mounted on the base (1); a go / no-go gauge (20) is detachably arranged on the first clamping portion (23); It also comprises a second clamping portion, which is mounted on the base (1); and a stop block (21) is detachably arranged on the second clamping portion.

4. The automobile chassis bracket inspection fixture according to claim 3, characterized in that: The first clamping portion (23) comprises a first elastic sheet (24) and a second elastic sheet (25), and the distance between the first elastic sheet (24) and the second elastic sheet (25) is adjustable; The second clamping portion has the same structure as the first clamping portion (23).

5. The automobile chassis bracket inspection fixture according to claim 1, characterized in that: Along the first direction, the base (2) is provided with a guide channel (26), one end of the guide channel (26) intersects with one of the side walls of the base (2) to form an opening, and the other end of the guide channel (26) communicates with the space formed by the concave valley (4); The first direction and the first plane (3) are parallel to each other.

6. The automobile chassis bracket inspection fixture according to claim 1, characterized in that: It also comprises a handle (27), which is arranged on one side of the base (1).

7. The automobile chassis bracket inspection fixture according to claim 1, characterized in that: There are multiple clamping clamps (18), and the multiple clamping clamps (18) are arranged around the base body (2).

8. The automobile chassis bracket inspection fixture according to claim 1, characterized in that: The number of the base bodies (2) is at least two.

9. The automobile chassis bracket inspection fixture according to claim 1, characterized in that: The number of the protrusions (7) is two.

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