Front subframe position precision pre-detection tool

Abstract

The utility model relates to the technical field of automobile front auxiliary frame detection tools, in particular to a front auxiliary frame position precision pre-detection tool which comprises a main body of a U-shaped structure and two auxiliary mounting plates of L-shaped structures symmetrically arranged about the center line of the main body. The auxiliary mounting plate is positioned below the corner of the U-shaped structure of the main body and is detachably connected with the main body through a connecting piece; first positioning pins are symmetrically arranged on the two sides of the U-shaped structure at the bottom of the main body respectively, a second positioning pin and a third positioning pin are sequentially arranged at the bottom of the auxiliary mounting plate, and a positioning hole is further formed in the position, beside the third positioning pin, of the auxiliary mounting plate. The utility model provides a front subframe position precision pre-detection tool, which can quickly pre-detect the position precision of a front subframe, is simple and convenient to operate, has low requirements on the technical level of testers, can solve the problem of hole deviation of the front subframe when the front subframe is spliced with a vehicle body due to position deviation, reduces the cost of manufacturing a single vehicle, and saves manpower and material resources.

Description

TECHNICAL FIELD

[0001] The utility model relates to automobile front subframe detection tool technical field more specifically, relate to a front subframe position precision pre -inspection tool. BACKGROUND

[0002] Automobile suspension system (front subframe) and body assembly process is an indispensable step in automobile manufacturing process, and the position precision of the front subframe determines whether the front subframe bolt hole and the body bolt hole are aligned, and whether the tightening can be successfully completed, so the position of the front subframe needs to be pre -inspected to prevent hole position deviation during the combination of the car. Under normal circumstances, the front subframe positioning method is positioned by tray positioning pin, and due to the gap between the front subframe positioning hole and the tray positioning pin, plus the hole position precision fluctuation generated by the front subframe manufacturing process, the vibration during transportation will cause the positioning position of the front subframe on the tray to be inaccurate, and the front subframe hole deviation fault occurs during the combination of the car. The method of reducing error is to detect the position precision by three coordinate measuring instrument, to ensure the position precision of the front subframe positioning pin, and to improve the process by frequent sampling inspection during the production of the front subframe, to further control the fluctuation of the hole position precision of the front subframe.

[0003] The measurement by three coordinate measuring instrument needs to install and fix the equipment on the tray, and then carry out datum positioning, data measurement and result export, and the whole measurement process needs to be operated by professional measurement personnel, and the process is complex, and the single time consumption is more than one hour, and the number of trays of general vehicle enterprises is more than 50, and the calibration process will consume a lot of manpower and time. Therefore, increasing the sampling inspection frequency of the front subframe will increase the consumption of manpower, and increase the cost of vehicle manufacturing. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the deficiency that the position precision detection of the prior art on the front subframe is complicated and causes the consumption of manpower cost, provides a front subframe position precision pre -inspection tool, which can quickly pre -inspect the position precision of the front subframe, and the operation is simple, the technical level requirement of test personnel is lower, the problem that the front subframe position deviation leads to the hole deviation of the front subframe when combining with the body can be solved, the single vehicle manufacturing cost is reduced, and manpower and material resources are saved.

[0005] To solve the above technical problems, the utility model adopts the technical scheme that:

[0006] The utility model provides a front subframe position precision pre -inspection tool, including the main part of U type structure, two L type structure's vice mounting plate is symmetrically arranged about the center line of main part, vice mounting plate is located the corner below of main part U type structure and is detachably connected with main part through connecting piece, first positioning pin is symmetrically equipped with in the both sides of main part bottom U type structure, second positioning pin and third positioning pin are equipped with in vice mounting plate bottom in proper order, the side of third positioning pin is equipped with positioning hole in vice mounting plate.

[0007] The utility model discloses a main part provides support for vice mounting plate, utilizes connecting piece to install fixed vice mounting plate, through the first positioning pin of setting on the main part, the second positioning pin and the third positioning pin of setting on the vice mounting plate are inserted with the connecting hole of setting on the automobile front subframe and the body cooperation respectively, and the body positioning pin of setting on the front subframe is inserted with the positioning hole on the vice mounting plate simultaneously to realize the detection of the position precision of the front subframe, if the position of the body positioning pin of the front subframe and each connecting hole meets the accuracy requirement, then can be inserted with the pre -inspection tool of the utility model during detection, otherwise, good insertion cannot be realized, therefore, utilize the pre -inspection tool of the utility model and can position precision detection of the front subframe quickly, when the position precision of the front subframe is detected and deviates, can be adjusted in time, prevents the front subframe hole deviation when following up and combines the car, reduces the repair cost, improves the installation efficiency of vehicle, and the pre -inspection tool of the utility model compares traditional three -coordinate measurement mode and greatly saves manpower cost and time cost.

[0008] Further, in the vertical projection direction, the main body can cover the vice mounting plate. The vice mounting plate is arranged in parallel with the main body, and the cross-sectional area of the vice mounting plate is smaller than that of the main body. Since the heights of the connecting holes and the positioning pins for cooperating with the body of the front subframe are different, if the second positioning pin, the third positioning pin, and the positioning hole are arranged on the main body, the lengths of the second positioning pin and the third positioning pin may be too long, which causes the second positioning pin and the third positioning pin to be deformed under stress during the insertion process, thereby affecting the detection accuracy. Therefore, the second positioning pin and the third positioning pin are arranged at different heights of the pre-inspection tool, which can improve the detection accuracy and prolong the service life of the pre-inspection tool.

[0009] Further, the length of the second positioning pin is greater than that of the third positioning pin. The height of the body connecting hole on the front subframe corresponding to the third positioning pin is higher than that of the body connecting hole on the front subframe corresponding to the second positioning pin. Therefore, by setting the lengths of the second positioning pin and the third positioning pin, the pre-inspection tool can be sequentially inserted into the connecting holes at different positions during the insertion process with the front subframe. The insertion sequence during detection can also be used as a basis for auxiliary judgment to determine whether the connecting holes are accurately arranged.

[0010] Further, the first positioning pin, the second positioning pin and the third positioning pin are each provided with a guide structure at the end. Preferably, the guide structure is conical. By providing the guide structure, the pre-inspection tool can be guided when being inserted into the front subframe, so that the insertion is smoother, the difficulty of insertion is reduced, the deformation of the positioning pin caused by extrusion during hard insertion is reduced, and the service life of the pre-inspection tool is prolonged.

[0011] Further, the connecting piece is a plurality of support columns, the plurality of support columns are parallel, and the two ends of the support columns are connected to the main body and the auxiliary mounting plate by bolts. The support column is a straight rod, which fixes the auxiliary mounting plate, so that the second positioning pin, the third positioning pin and the positioning hole are located in different height planes, so as to adapt to the front subframe.

[0012] Further, the length of the first positioning pin is less than the length of the connecting piece. During detection, the first positioning pin is first inserted into the connecting hole of the front subframe, followed by the third positioning pin and the second positioning pin. The three different positioning pins correspond to the connecting holes at different positions on the front subframe. By appropriately setting the lengths of the different positioning pins and the length of the connecting piece, the detection of the connecting holes at different positions can be performed in order, and the insertion sequence during detection can be used as a basis for auxiliary judgment to detect whether the connecting holes are accurately arranged.

[0013] Further, a sleeve is arranged at the positioning hole on the mounting plate corresponding to the right side of the opening of the U-shaped structure of the main body. The body positioning pins of the front subframe are at different heights on the left and right sides, so the sleeve is arranged to allow the right side body positioning pin to be inserted into the sleeve first, and then the left side body positioning pin is inserted into the positioning hole.

[0014] Further, a reinforcing rib of U-shaped structure is further arranged on the top of the main body, and the opening direction of the U-shaped structure of the reinforcing rib is the same as that of the main body. The reinforcing rib can improve the strength of the main body, increase the anti-deformation ability of the main body during detection, and prolong the service life of the pre-inspection tool. Preferably, the reinforcing rib is made of stainless steel to improve the strength.

[0015] Further, a plurality of escape holes are arranged on the reinforcing rib in sequence. The shape of the escape hole includes but is not limited to various regular or irregular shapes such as a circle and a square. The escape hole can reduce the overall weight of the reinforcing rib, facilitate transportation and detection of the pre-inspection tool.

[0016] Further, a handle is further arranged, and the handle is two, which are symmetrically arranged on the top of the reinforcing rib on both sides. Preferably, the handle is also made of stainless steel, which can facilitate the operator to hold the pre-inspection tool.

[0017] Further, the handle is of a U-shaped structure, and the opening side of the U-shaped structure is connected with the reinforcing rib.

[0018] Compared with the prior art, the front subframe position precision pre-checking tool has the following beneficial effects:

[0019] The front subframe position precision pre-checking tool can quickly pre-check the position precision of the front subframe, is simple and easy to operate, has low technical level requirement for the tester, can solve the problem of the hole deviation of the front subframe when the front subframe is combined with the vehicle body, reduces the cost of a single vehicle manufacturing, and saves manpower and resources. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 FIG. 1 is a structure schematic diagram of a first perspective view of the front subframe position precision pre-checking tool according to the present application;

[0021] Fig. 2 FIG. 2 is a structure schematic diagram of a second perspective view of the front subframe position precision pre-checking tool according to the present application;

[0022] Fig. 3 FIG. 3 is a structure schematic diagram of a third perspective view of the front subframe position precision pre-checking tool according to the present application.

[0023] The following is the illustration mark description:

[0024] 1, main body; 2, auxiliary mounting plate; 3, connecting piece; 4, first positioning pin; 5, second positioning pin; 6, third positioning pin; 7, positioning hole; 8, sleeve; 9, reinforcing rib; 10, handle. DETAILED DESCRIPTION

[0025] The present application will be further described below in conjunction with the specific embodiments. The drawings are only used for exemplary description, and the representation is only a schematic diagram, not a physical drawing, and cannot be understood as a limitation of the present patent; in order to better illustrate the embodiments of the present application, some components in the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some known structures and their descriptions in the drawings may be omitted.

[0026] The same or similar reference signs in the drawings of the embodiments of the present utility model correspond to the same or similar components; in the description of the present utility model, it is understood that if the orientation or position relationship indicated by the terms "upper", "lower", "left", "right" and the like is based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the position relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the present patent, for those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0027] Embodiment 1

[0028] As Figs. 1 to 3 shown is a first embodiment of the front subframe position precision pre-check tool, comprising a main body 1 of U-shaped structure, two L-shaped structure sub-mounting plates 2 symmetrically arranged about the center line of the main body 1, the sub-mounting plate 2 is located below the corner of the U-shaped structure of the main body 1 and is detachably connected with the main body 1 through a connecting piece 3; a first positioning pin 4 is symmetrically arranged on both sides of the U-shaped structure at the bottom of the main body 1, a second positioning pin 5 and a third positioning pin 6 are sequentially arranged at the bottom of the sub-mounting plate 2, and a positioning hole 7 is further arranged beside the third positioning pin 6 of the sub-mounting plate 2.

[0029] The present utility model provides support for the sub-mounting plate 2 through the main body 1, installs and fixes the sub-mounting plate 2 by the connecting piece 3, the first positioning pin 4 arranged on the main body 1, the second positioning pin 5 and the third positioning pin 6 arranged on the sub-mounting plate 2 are respectively inserted into the connecting hole arranged on the automobile front subframe and matched with the vehicle body, and the positioning hole 7 arranged on the sub-mounting plate 2 is inserted into the vehicle body positioning pin arranged on the front subframe, so as to realize the detection of the position precision of the front subframe, if the position of the vehicle body positioning pin of the front subframe and each connecting hole meets the precision requirement, the pre-check tool of the present utility model can be perfectly inserted during detection, otherwise, good insertion cannot be realized, therefore, the pre-check tool of the present utility model can quickly detect the position precision of the front subframe, and when the position precision of the front subframe deviates, it can be timely repaired and adjusted, so as to prevent the front subframe from being deviated during subsequent vehicle assembly, reduce the repair cost, improve the installation efficiency of the vehicle, and the pre-check tool of the present utility model greatly saves the labor cost and time cost compared with the traditional three-coordinate measurement method.

[0030] As an embodiment of the utility model, in vertical projection direction, main body 1 can cover vice mounting plate 2. Vice mounting plate 2 is parallel with main body 1, and the cross-sectional area of vice mounting plate 2 is less than the cross-sectional area of main body 1. Because the height of the connecting hole and the locating pin of the front subframe and the vehicle body is different, if the second locating pin 5, the third locating pin 6 and the locating hole 7 are directly arranged on the main body 1, the length of the second locating pin 5 and the third locating pin 6 may be too long, which causes the stress deformation of the second locating pin 5 and the third locating pin 6 during the insertion process, thereby affecting the detection accuracy. Therefore, the second locating pin 5 and the third locating pin 6 are installed at different heights of the pre-detection tool, which can improve the detection accuracy and prolong the service life of the pre-detection tool.

[0031] As an embodiment of the utility model, the length of the second locating pin 5 is greater than the length of the third locating pin 6. The height of the vehicle body connecting hole on the front subframe corresponding to the third locating pin 6 is higher than the height of the vehicle body connecting hole on the front subframe corresponding to the second locating pin 5. Therefore, by setting the length of the second locating pin 5 and the third locating pin 6, the pre-detection tool can be sequentially inserted into the connecting holes at different positions during the insertion process with the front subframe, and the insertion sequence during detection can also be used as a basis for auxiliary judgment to detect whether the connecting hole is accurately arranged.

[0032] As an embodiment of the utility model, the first locating pin 4, the second locating pin 5 and the third locating pin 6 are each provided with a guide structure at the end. Preferably, the guide structure is a conical type. By providing the guide structure, the pre-detection tool can be guided during the insertion with the front subframe, so that the insertion is smoother, the difficulty of insertion is reduced, the deformation of the locating pin caused by extrusion during hard insertion is reduced, and thus the service life of the pre-detection tool can be prolonged.

[0033] As an embodiment of the utility model, the connecting piece 3 is a plurality of support columns, and the plurality of support columns are parallel. The two ends of the support column are connected to the main body 1 and the vice mounting plate 2 by bolts. The support column is a straight rod, which fixes the vice mounting plate 2, so that the second locating pin 5, the third locating pin 6 and the locating hole 7 are located at different height planes with the first locating pin 4 to adapt to the front subframe.

[0034] As an embodiment of the utility model, the length of the first locating pin 4 is less than the length of the connecting piece 3. During detection, the first locating pin 4 is first inserted into the connecting hole of the front subframe, followed by the third locating pin 6 and the second locating pin 5. The three different locating pins correspond to the connecting holes at different positions on the front subframe. By setting the length of the different locating pins and the length of the connecting piece 3, the detection of the connecting holes at different positions is sequentially performed during detection, and the insertion sequence during detection can also be used as a basis for auxiliary judgment to detect whether the connecting hole is accurately arranged.

[0035] As an embodiment of the present application, a sleeve 8 is additionally arranged at the positioning hole 7 on the mounting plate corresponding to the right side of the opening of the U-shaped structure of the main body 1. The height of the body positioning pin of the front subframe is different on the left and right sides, so the sleeve 8 is arranged to enable the body positioning pin on the right side to be inserted into the sleeve 8 first, and then the body positioning pin on the left side is inserted into the positioning hole 7.

[0036] Embodiment 2

[0037] The following is a second embodiment of the front subframe position precision pre-check tool of the present application, which is similar to the first embodiment, except that it further comprises a reinforcing rib 9 of a U-shaped structure, which is arranged on the top of the main body 1 and the opening direction of the U-shaped structure of the reinforcing rib 9 is the same as that of the main body 1.

[0038] The reinforcing rib 9 can improve the strength of the main body 1, increase the anti-deformation ability of the main body 1 during detection, and prolong the service life of the pre-check tool. Preferably, the reinforcing rib 9 can be made of stainless steel to improve the strength.

[0039] As an embodiment of the present application, a plurality of escape holes are arranged on the reinforcing rib 9.

[0040] The shape of the escape hole includes but is not limited to various regular or irregular shapes such as circular and square. The escape hole can reduce the overall weight of the reinforcing rib 9, facilitating transportation and detection application of the pre-check tool.

[0041] Embodiment 3

[0042] The following is a third embodiment of the front subframe position precision pre-check tool of the present application, which is similar to the first embodiment, except that it further comprises two handles 10 symmetrically arranged on the top of the reinforcing rib 9.

[0043] Preferably, the handle 10 is also made of stainless steel, which can facilitate the operator to hold the pre-check tool.

[0044] As an embodiment of the present application, the handle 10 is of a U-shaped structure, and the opening side of the U-shaped structure is connected with the reinforcing rib 9.

[0045] The U-shaped structure of the handle 10 is invertedly arranged, which can facilitate the holding of the pre-check tool. Within the cognitive range of those skilled in the art, the handle 10 can also have other shapes and structures.

[0046] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and also impossible to exhaust all the implementation modes. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application claims.

Claims

1. A front subframe position accuracy pre-checking tool, characterized in that, The main body (1) comprises a U-shaped structure, two L-shaped auxiliary mounting plates (2) are symmetrically arranged about the center line of the main body (1), the auxiliary mounting plates (2) are arranged below the corners of the U-shaped structure of the main body (1) and are detachably connected with the main body (1) through connecting pieces (3), first positioning pins (4) are symmetrically arranged at the two sides of the bottom of the U-shaped structure of the main body (1), second positioning pins (5) and third positioning pins (6) are sequentially arranged at the bottom of the auxiliary mounting plates (2), and a positioning hole (7) is further arranged beside the third positioning pin (6) of the auxiliary mounting plate (2).

2. The front subframe position precision pre-check tooling according to claim 1, characterized in that, In the vertical projection direction, the main body (1) can cover the auxiliary mounting plate (2).

3. The front subframe position precision pre-check tooling according to claim 1, characterized in that, The length of the second positioning pin (5) is greater than the length of the third positioning pin (6).

4. The front subframe position precision pre-checking tooling according to any one of claims 1 to 3, characterized in that, The first positioning pin (4), the second positioning pin (5) and the third positioning pin (6) are all provided with a guide structure at the end.

5. The front subframe position precision pre-check tooling according to claim 1, characterized in that, The connecting piece (3) is a plurality of supporting columns, the supporting columns are all arranged in parallel, and the two ends of the supporting columns are respectively connected with the main body (1) and the auxiliary mounting plate (2) through bolts.

6. The front subframe position precision pre-check tooling according to claim 5, characterized in that, The length of the first positioning pin (4) is less than the length of the connecting piece (3).

7. The front subframe position precision pre-check tooling according to claim 1, characterized in that, The reinforcing rib (9) is arranged on the top of the main body (1), and the opening direction of the U-shaped structure of the reinforcing rib (9) is the same as that of the main body (1).

8. The front subframe position precision pre-check tooling according to claim 7, characterized in that, A plurality of material escape holes are sequentially arranged on the reinforcing rib (9).

9. The front subframe position precision pre-check tooling according to claim 7, characterized in that, The handle (10) is provided with two handles (10) which are symmetrically arranged at the two sides of the top of the reinforcing rib (9).

10. The front subframe position precision pre-check tooling according to claim 9, characterized in that, The handle (10) is in a U-shaped structure, and the opening side of the U-shaped structure is connected with the reinforcing rib (9).

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