Device for rapidly detecting position degree of engine bracket

Abstract

The utility model discloses an engine support location degree rapid detection device, comprising a pedestal and a workbench installed on the pedestal, the surface of the workbench is provided with a molded surface consistent with the inner side surface of a support main body, and the molded surface is parallel to the surface of the pedestal by using a plane with the largest area as an upper top surface. The molded surface is provided with a side surface inclined relative to the surface of the base, the upper top surface is provided with a reference hole site, the side surface is provided with a detection hole site, the reference hole site and the detection hole site are correspondingly formed based on mounting holes in the bracket, and the reference hole site, the detection hole site and the corresponding mounting holes are concentric in position; and a bolt is inserted into the mounting hole to detect the alignment condition with the reference hole site or the detection hole site. According to different engine supports, corresponding workbenches can be designed and manufactured for replacement for detection, the applicability is high, the molded surface is matched with the structure of the support, a stable detection premise can be provided, position degree detection can be rapidly operated through the plug pin, and the detection standard is unified.

Description

Technical Field

[0001] The utility model relates to a checking tool for an engine bracket, in particular to a checking tool for the position of an engine bracket. Background Art

[0002] In recent years, the new energy vehicle industry has flourished, and there are many brands and models of new energy vehicles. As the power source of various components of new energy vehicles, the shapes of engines are increasing. During the assembly process of the engine, the bracket and related components need to be connected through internal fasteners. Therefore, the hole position and dimensional accuracy of the bracket are particularly important and must be in place to ensure the smooth progress of automated assembly. If the fastening fails, the bracket will not be installed correctly or will fail, resulting in poor stability of the entire engine system, the risk of scrapping, and even serious traffic accidents.

[0003] Since the assembly accuracy of the bracket is high, 100% online measurement is required. Figure 1 The bracket shown in the figure will form multiple positions after multiple bending. The detection of position is currently limited to three-coordinate measurement. As the preferred detection equipment for shape tolerance, three-coordinate detection can be used, but the limitations of its working principle and the manufacturing environment make it unable to meet the actual measurement requirements. Utility Model Content

[0004] Purpose of the utility model: In view of the above problems, the purpose of the utility model is to provide a checking fixture for checking the position of an engine bracket, which can quickly detect product quality and unify inspection standards.

[0005] Technical solution: A rapid detection device for the position of an engine bracket, comprising a base and a workbench installed thereon, wherein the surface of the workbench is provided with a profile consistent with the inner side surface of the bracket body, the profile has a plane with the largest area as the upper top surface and is parallel to the base surface, the profile has a side surface inclined to the base surface, a reference hole position is opened on the upper top surface, and a detection hole position is opened on the side surface, the reference hole position and the detection hole position are opened accordingly based on the mounting holes on the bracket, the reference hole position and the detection hole position are concentric with the position of the corresponding mounting holes, the bracket is placed on the profile surface, and a pin is inserted into the mounting hole to detect the alignment with the reference hole position or the detection hole position.

[0006] Furthermore, the molding surface is a sunken structure relative to the surface of the workbench. When the bracket is placed on the molding surface, the bracket body falls into the molding surface. The two cooperate with each other in such a structure, which is conducive to providing a stable detection premise.

[0007] Furthermore, there is at least one reference hole position and one detection hole position.

[0008] Furthermore, the apertures of the reference hole position and the detection hole position are smaller than the apertures of the corresponding mounting holes, and the end of the pin is arranged as a step structure, the diameter of the first step on the outer side thereof is the same as and matches the aperture of the reference hole position or the detection hole position, the diameter of the second step adjacent to the first step is the same as and matches the aperture of the corresponding mounting hole, and the height of the first step is smaller than the hole depth of the reference hole position or the detection hole position.

[0009] Furthermore, a protruding positioning ring is provided on the upper top surface, and the positioning ring is opened accordingly based on the positioning groove on the bracket. The bracket is placed on the molding surface, which is conducive to providing a stable detection premise.

[0010] Furthermore, a handle is provided on the base, and the detection device can be moved by holding the handle.

[0011] Beneficial effects: The advantages of the utility model are that the detection device can be designed and manufactured according to different engine brackets, and the corresponding workbench can be replaced for detection. It has strong applicability, and the structural coordination between the profile and the bracket is conducive to providing a stable detection premise. The position detection can be quickly operated through the pin. The design coordination of the pin and the mounting hole, the reference hole position / detection hole position makes it convenient to confirm whether the detection situation meets the detection requirements, unify the inspection standards, and improve the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the engine bracket;

[0013] Figure 2 It is a schematic diagram of the three-dimensional structure of the detection device;

[0014] Figure 3 for Figure 2 E-direction view;

[0015] Figure 4 for Figure 2 F-direction view;

[0016] Figure 5 A schematic diagram of a plug insertion profile;

[0017] Figure 6 for Figure 5 E' direction view;

[0018] Figure 7 for Figure 5 F' direction view;

[0019] Figure 8 A schematic diagram of an engine bracket being inspected on a detection device;

[0020] Fig. 9 for Figure 8E” direction view;

[0021] Fig.10 for Figure 8 F” view. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] The present invention relates to a rapid detection device for the position of an engine bracket, the structure of which is as shown in the attached figure. Figures 2 to 7 As shown, it includes a base 1, a workbench 2, and a plurality of latches 4. Figure 1 An engine bracket is shown to illustrate the structure of the detection device.

[0024] The engine bracket is usually bent several times to form multiple bending surfaces, such as the following Figure 1 In the engine bracket shown, the bracket main body includes three bending surfaces, and the mounting holes A, B, C1, C2, and C3 on the three bending surfaces each have a three-coordinate position degree.

[0025] As attached Figures 2 to 7 As shown, the base 1 is a flat plate, and the workbench 2 is installed on the base 1 . The base 1 is provided with handles 11 , and one handle is arranged opposite to each other on both sides of the workbench 2 .

[0026] A profile 3 is provided on the surface of the workbench 2. The profile 3 is a sunken structure relative to the surface of the workbench 2. The profile 3 is consistent with the inner side surface of the bracket body, that is, consistent with the inner side surfaces of the three bending surfaces.

[0027] The profile 3 uses a plane with the largest area as the upper top surface 31, that is, a plane corresponding to a bent surface where the mounting holes C1, C2, and C3 are located as the upper top surface 31. The upper top surface 31 is arranged to be parallel to the surface of the base 1. Then, two planes on the profile 3 corresponding to the two bent surfaces where the mounting holes A and B are located form two side surfaces 32 inclined to the surface of the base 1.

[0028] Three reference hole positions 33 are provided on the upper top surface 31, which are respectively provided based on the mounting hole C1, the mounting hole C2, and the mounting hole C3. The three reference hole positions 33 are concentric with the positions of the corresponding mounting holes C1, the mounting hole C2, and the mounting hole C3, and the apertures of the three reference hole positions 33 are smaller than the apertures of the corresponding mounting holes C1, the mounting hole C2, and the mounting hole C3. A protruding positioning ring 35 can also be provided on the upper top surface 31, which is provided based on the positioning groove on the bending surface.

[0029] A detection hole 34 is provided on each of the two side surfaces 32, which is respectively provided based on the mounting hole A and the mounting hole B. The two detection holes 34 are concentric with the positions of the corresponding mounting holes A and the mounting holes B, and the apertures of the two detection holes 34 are smaller than the apertures of the corresponding mounting holes A and the mounting holes B.

[0030] Combined with Figures 8 to 10 As shown, during detection, the engine bracket is placed on the profile 3, and the bracket body falls into the profile 3. Each reference hole position 33 or detection hole position 34 corresponds to a corresponding mounting hole, and detection is performed through the pin 4.

[0031] The end of the plug 4 is arranged as a step structure, and the diameter of the first step 41 on the outer side thereof is the same as and matches the aperture of the reference hole 33 or the detection hole 34, and the diameter of the second step 42 adjacent to the first step 41 is the same as and matches the aperture of the corresponding mounting hole, and the minimum value of the designed aperture is determined as the diameter, and the height of the first step 41 is less than the hole depth of the reference hole 33 or the detection hole 34.

[0032] For example, to detect the position of the mounting hole C1, take the corresponding plug and insert it into the mounting hole C1 to the reference hole position below it. If the position of the mounting hole C1 meets the detection requirements, first, the first step of the plug can be inserted into the reference hole position, and second, the second step can be inserted into the mounting hole C1, and the diameter of the second step matches the aperture of the mounting hole C1. Since the tolerance of the design aperture is basically ±0.1mm, the minimum value of the design aperture is determined as the diameter. Therefore, if the two are just inserted or the gap is very small and uniform when the detection requirements are met, the alignment is considered to be good. On the contrary, when the plug is inserted, any step interferes, or the first step can be inserted but the gap between the second step and the mounting hole C1 is large and / or uneven, it is considered that the alignment does not meet the position detection requirements.

[0033] The detection device of the present application has the following advantages:

[0034] 1. According to different engine brackets, corresponding workbenches can be designed and made to replace and test, which has strong applicability;

[0035] 2. The structural coordination between the profile and the bracket is conducive to providing a stable detection premise. The profile uses a plane with the largest area as the upper top surface and the profile of the sinking structure, etc., which can effectively position the bracket;

[0036] 3. Position detection can be quickly operated through the pin. The design coordination of the pin and the mounting hole, reference hole position / detection hole position makes it easy to confirm whether the detection situation meets the detection requirements, unify the inspection standards, and improve the detection accuracy; when the mounting holes have the same diameter, the number of pins can be reduced and multiple mounting holes can be detected universally.

Claims

1. A rapid detection device for the position of an engine bracket, characterized in that: The invention comprises a base (1) and a workbench (2) mounted thereon, wherein a profile (3) is provided on the surface of the workbench (2) and is consistent with the inner side surface of a bracket body, wherein the profile (3) is parallel to the surface of the base (1) with a plane having a maximum area as an upper top surface (31), and the profile (3) has a side surface (32) inclined with the surface of the base (1), a reference hole position (33) is provided on the upper top surface (31), and a detection hole position (34) is provided on the side surface (32), wherein the reference hole position (33) and the detection hole position (34) are provided based on the mounting holes on the bracket, and the reference hole position (33) and the detection hole position (34) are concentric with the position of the corresponding mounting holes, and the bracket is placed on the profile (3), and a pin (4) is inserted into the mounting hole to detect the alignment with the reference hole position (33) or the detection hole position (34).

2. The engine bracket position rapid detection device according to claim 1, characterized in that: The molding surface (3) is a sunken structure relative to the surface of the workbench (2).

3. The engine bracket position rapid detection device according to claim 1, characterized in that: There is at least one reference hole position (33) and one detection hole position (34).

4. The engine bracket position rapid detection device according to claim 1, characterized in that: The diameter of the reference hole position (33) and the detection hole position (34) is smaller than the diameter of the corresponding mounting hole; the end of the plug pin (4) is arranged as a step structure; the diameter of the first step (41) on the outer side thereof is the same as and matches the diameter of the reference hole position (33) or the detection hole position (34); the diameter of the second step (42) adjacent to the first step (41) is the same as and matches the diameter of the corresponding mounting hole; and the height of the first step (41) is smaller than the hole depth of the reference hole position (33) or the detection hole position (34).

5. The engine bracket position rapid detection device according to claim 1, characterized in that: A protruding positioning ring (35) is provided on the upper top surface (31), and the positioning ring (35) is opened corresponding to the positioning groove on the bracket.

6. The engine bracket position rapid detection device according to claim 1, characterized in that: The base (1) is provided with a handle (11).

Images