Engine compartment opening size detection support and detection method

Abstract

The invention relates to the technical field of automobile production process manufacturing quality, in particular to an engine compartment opening size detection support and a detection method. A front cover simulation block (2), a headlamp simulation block (3), a front bumper simulation block (4) and a mounting plate (5) are respectively arranged on the mounting frame (1); the mounting plate (5) is connected with an engine compartment; through the front cover simulation block, the headlamp simulation block and the front bumper simulation block on the installation frame, whether installation points and peripheral matching points on an engine compartment meet the DTS and size technical specification size requirements or not can be detected, and matched part installation points in a forecabin area and the matching boundary size of an engine cover plate and a fender can be detected. The detection support is taken down after the adjustment standard is met, and detection is completed; similarly, if the DTS matching of the front part of the engine compartment is poor, the installation and adjustment quality detection of the front part of the engine compartment can be realized through the detection support, and the quality management is realized.

Description

Technical Field

[0001] The invention relates to the technical field of automobile production process manufacturing quality, and in particular to an engine compartment opening size detection bracket and a detection method. Background Art

[0002] With the technological advancement of automobile development, modularization is increasing, among which the front-end frame is a notable application case; the application of the front-end frame structure leads to the unconstrained opening size of the front opening of the body engine compartment opening size detection bracket, and the installation point size consistency control is poor; the appearance assembly quality of the front parts cannot stably achieve the quality state; for example, the front bumper, headlights, front cover, fenders and other parts have a DTS matching relationship; because the front of the cabin is unconstrained, there are differences in the assembly positioning of parts, which makes it difficult to control the assembly size.

[0003] After searching, the applicant found that the Chinese patent document with publication number 116522487A disclosed a DTS compliance check method for automobile A-side and assembly data on August 1, 2023, including obtaining the reference part and the opponent part, selecting the reference part and the opponent part respectively, obtaining all face pieces, and merging them to obtain a structure tree; obtaining the reference line and establishing the section: obtaining the section section; automatically checking the DTS gap value, obtaining the gap measurement reference point on the reference part or the opponent part, the gap measurement curve, and the distance from the reference point to the curve; automatically checking the DTS segment difference value, obtaining the segment difference measurement extension line on the reference part, and obtaining the segment difference measurement point on the opponent part; automatically judging the inspection result; this method cannot solve the above-mentioned technical problems.

[0004] Therefore, in order to improve or solve at least one of the above problems, it is necessary to provide an engine compartment opening size detection bracket and a detection method that can realize rapid detection of the engine compartment opening size and posture. Summary of the invention

[0005] The object of the present invention is to provide an engine compartment opening size detection bracket and a detection method which can realize rapid detection of the engine compartment opening size and posture.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: an engine compartment opening size detection bracket, including a mounting frame; the mounting frame is respectively provided with a front cover simulation block, a headlight simulation block, a front bumper simulation block and a mounting plate; the mounting plate is connected to the engine compartment.

[0007] The mounting frame includes a top frame and a bottom mounting rod; a connecting rod is provided between the top frame and the bottom mounting rod; the front cover simulation block, the headlight simulation block and the front bumper simulation block are all connected to the top frame; and the mounting plate is provided on the bottom mounting rod.

[0008] A first mounting block is provided on the bottom mounting rod; the first mounting blocks are respectively provided at both ends of the bottom mounting rod; the first mounting block is connected to the mounting plate; the engine compartment includes a cabin end plate; a positioning pin is provided on the cabin end plate; a positioning hole is provided on the mounting plate; the mounting plate is tightly pressed against the cabin end plate, and the positioning pin is inserted into the positioning hole.

[0009] The top frame includes a first mounting rod and a second mounting rod; the first mounting rod is connected to a second mounting block; the second mounting block is connected to the front cover simulation block; the engine compartment includes an engine cover plate; the engine cover plate is arranged on the top of the front cover simulation block.

[0010] The first mounting rod is arranged on a side of the top frame away from the cabin end plate; a plurality of the front cover simulation blocks are arranged on the first mounting rod.

[0011] A third mounting block is provided on the first mounting rod; the third mounting blocks are respectively provided at both ends of the first mounting rod; a side rod is provided between the first mounting rod and the second mounting rod; a fourth mounting block is provided on the side rod; one end of the headlight simulation block is connected to the third mounting block; the other end of the headlight simulation block is connected to the fourth mounting block.

[0012] The engine compartment includes a fender; the fender is arranged on one side of the engine cover; the headlight simulation block includes an engine cover simulation section and a fender connecting section; the engine cover simulation section is arranged on one side of the engine cover; a headlight mounting groove is provided on the fender; the fender connecting section is arranged in the headlight mounting groove.

[0013] The side rod is connected with a fifth mounting block; the fifth mounting block is connected with the front bumper simulation block; the front bumper simulation block is arranged on one side of the fender.

[0014] The fender includes a first mounting end surface and a second mounting end surface; the headlight mounting groove is arranged on the first mounting end surface; and the front bumper simulation block is arranged on one side of the second mounting end surface.

[0015] A method for detecting the engine compartment opening size detection bracket, the detection method comprising the following steps:

[0016] 1) Connect the mounting plate to the cabin end plate;

[0017] 2) The front cover simulation block is arranged at the bottom of the engine cover; the headlight simulation block is arranged on both sides of the engine cover; and the fender connecting section of the headlight simulation block is arranged in the headlight mounting groove; the front bumper simulation block is arranged on one side of the second mounting end surface;

[0018] 3) Measure the gap between the front cover simulation block and the engine cover; measure the gap between the headlight simulation block and the engine cover; measure the gap between the headlight simulation block and the fender; measure the gap between the front bumper simulation block and the second mounting end surface.

[0019] The beneficial effects of this application are:

[0020] In this application, the staff manually fixes the mounting frame to the engine compartment end plate through the pin holes of the mounting plate to ensure that the inspection bracket is firmly fixed to the vehicle body; the front cover simulation block, the headlight simulation block and the front bumper simulation block on the mounting frame can be used to check whether the mounting points and surrounding matching points on the engine compartment meet the DTS (Dimensional Technical Specifications) size requirements, and can detect the matching component mounting points in the front compartment area and the matching boundary dimensions of the engine cover and fender. After the installation and adjustment standards are met, the inspection bracket is removed to complete the inspection; similarly, if the DTS at the front of the engine compartment does not match well, the inspection bracket can also be used to realize the quality inspection of the front installation and adjustment of the engine compartment to achieve quality management. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0022] Figure 1 This is a schematic diagram of the structure of the engine compartment opening size detection bracket.

[0023] Figure 2 This is a schematic diagram of the installation status of the engine compartment opening size detection bracket.

[0024] The marks in the above figure are:

[0025] The markings in the figure are:

[0026] 1. Install the frame.

[0027] 2. Front cover simulation block, 201, second mounting block, 202, engine cover plate,

[0028] 3. Headlight simulation block, 301. Third mounting block, 302. Fourth mounting block, 303. Fender, 304. Engine cover simulation section, 305. Fender connecting section, 306. Headlight mounting slot,

[0029] 4. Front bumper simulation block, 401, fifth installation block,

[0030] 5. Mounting plate, 501. First mounting block, 502. Cabin end plate, 503. Positioning pin, 504. Positioning hole,

[0031] 6. Top frame, 601. Bottom mounting rod, 602. Connecting rod, 603. First mounting rod, 604. Second mounting rod, 605. Side rod,

[0032] 7. First mounting end surface, 701. Second mounting end surface. DETAILED DESCRIPTION

[0033] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and facilitating their implementation.

[0034] Figure 1 The engine compartment opening size detection bracket shown includes a mounting frame 1; a front cover simulation block 2, a headlight simulation block 3, a front bumper simulation block 4 and a mounting plate 5 are respectively provided on the mounting frame 1; and the mounting plate 5 is connected to the engine compartment.

[0035] The mounting frame 1 is fixed on the engine compartment through the mounting plate 5 to ensure that the detection bracket is firmly fixed to the vehicle body; the front cover simulation block 2, the headlight simulation block 3 and the front bumper simulation block 4 on the mounting frame 1 can be used to check whether the mounting points and surrounding matching points on the engine compartment meet the DTS (Dimensional Technical Specifications), and can detect the matching component mounting points in the front compartment area and the matching boundary dimensions of the engine cover and fender. After the installation and adjustment standards are met, the detection bracket is removed to complete the inspection; similarly, if the DTS at the front of the engine compartment is not well matched, the installation and adjustment quality of the front of the engine compartment can also be inspected through the detection bracket to achieve quality management.

[0036] The mounting frame 1 includes a top frame 6 and a bottom mounting rod 601; a connecting rod 602 is provided between the top frame 6 and the bottom mounting rod 601; the front cover simulation block 2, the headlight simulation block 3 and the front bumper simulation block 4 are all connected to the top frame 6; and the mounting plate 5 is provided on the bottom mounting rod 601.

[0037] The mounting frame 1 is a carbon fiber frame; the mounting frame 1 is a hollow triangular prism structure frame; the top frame 6 is a square frame; a connecting rod 602 is provided in the top frame 6; and the top frame 6 is fixedly connected to the bottom mounting rod 601 through the connecting rod 602; the connecting rod 601 is connected into a triangular structure, which can achieve a stable connection between the top plate frame 6 and the bottom mounting rod 601, while strengthening the structural strength of the detection bracket and increasing the service life of the detection bracket.

[0038] A first mounting block 501 is provided on the bottom mounting rod 601; the first mounting blocks 501 are respectively provided at both ends of the bottom mounting rod 601; the first mounting block 501 is connected to the mounting plate 5; the engine compartment includes a cabin end plate 502; a positioning pin 503 is provided on the cabin end plate 502; a positioning hole 504 is provided on the mounting plate 5; the mounting plate 5 is tightly pressed against the cabin end plate 502, and the positioning pin 503 is inserted into the positioning hole 504.

[0039] The bottom mounting rod 601 is a round rod; the first mounting block 501 is a square block; a through hole is provided on the first mounting block 501; the first mounting block 501 is fixedly connected to the bottom mounting rod 601 through the through hole; the first mounting blocks 501 are provided at both ends of the bottom mounting rod 601; the mounting plate 5 is a square plate; the positioning hole 504 is a through hole, and the positioning hole 504 is provided on the mounting plate 5; the engine compartment includes two mounting beams; the cabin end plate 502 is fixedly connected to the end of the mounting beam; the spacing between the mounting plates 5 at both ends of the bottom mounting rod 601 is preset to a standard value in advance; by detecting whether the positioning pins 503 of the two cabin end plates 502 can be installed in the positioning holes 504 of the mounting plate 5 at the same time, it is determined whether the spacing between the two cabin end plates 502, the relative height and the depth installation position meet the DTS (Dimensional Technical Specifications) size requirements.

[0040] The top frame 6 includes a first mounting rod 603 and a second mounting rod 604; the first mounting rod 603 is connected to a second mounting block 201; the second mounting block 201 is connected to the front cover simulation block 2; the engine compartment includes an engine cover plate 202; the engine cover plate 202 is arranged on the top of the front cover simulation block 2.

[0041] The first mounting rod 603 and the second mounting rod 604 are both round rods; the first mounting rod 603 is arranged on the side of the top plate frame 6 away from the cabin end plate 502; the second mounting rod 604 is arranged on the side of the top frame 6 close to the cabin end plate 502; the second mounting block 201 is a square block; the second mounting block 201 is provided with a through hole; the second mounting block 201 is fixedly connected to the first mounting rod 603 through the through hole; the cross-section of the front cover simulation block 2 is triangular; the front cover simulation block 2 is connected to a connecting plate; the front cover simulation block 2 is connected to the top of the second mounting block 201 through the connecting plate; the front cover simulation block 2 can simulate the top edge structure of a standard front bumper, and the gap between the top surface of the front cover simulation block 2 and the bottom of the front end of the engine cover 202 needs to meet the standard installation size requirements.

[0042] The first mounting rod 603 is arranged on a side of the top frame 6 away from the cabin end plate 502 ; a plurality of front cover simulation blocks 2 are arranged on the first mounting rod 603 .

[0043] The device includes three front cover simulation blocks 2; the three front cover simulation blocks 2 are fixedly connected to the top of the first mounting rod 603; and multiple front cover simulation blocks 2 are simultaneously arranged at the bottom of the front end of the engine cover plate 202, which can more comprehensively detect whether the installation gap between the engine cover plate 202 and the top of the standard front bumper meets the quality requirements.

[0044] A third mounting block 301 is provided on the first mounting rod 603; the third mounting blocks 301 are respectively provided at both ends of the first mounting rod 603; a side rod 605 is provided between the first mounting rod 603 and the second mounting rod 604; a fourth mounting block 302 is provided on the side rod 605; one end of the headlight simulation block 3 is connected to the third mounting block 301; the other end of the headlight simulation block 3 is connected to the fourth mounting block 302.

[0045] Both ends of the first mounting rod 603 are fixedly connected with the third mounting block 301, and both ends of the first mounting rod 603 are fixedly connected with the side rod 605; the third mounting block 301 and the fourth mounting block 302 are both square blocks; the third mounting block 301 and the fourth mounting block 302 are both provided with through holes; the third mounting block 301 is fixedly connected to the first mounting rod 603 through the through hole; the fourth mounting block 302 is fixedly connected to the side rod 605 through the through hole; one end of the headlight simulation block 3 is fixedly connected to the top of the third mounting block 301; the other end of the headlight simulation block 3 is fixedly connected to the top of the fourth mounting block 302; thereby realizing the inclined installation of the headlight simulation block 3.

[0046] The engine compartment includes a fender 303; the fender 303 is arranged on one side of the engine cover 202; the headlight simulation block 3 includes an engine cover simulation section 304 and a fender connecting section 305; the engine cover simulation section 304 is arranged on one side of the engine cover 202; a headlight mounting groove 306 is provided on the fender 303; the fender connecting section 305 is arranged in the headlight mounting groove 306.

[0047] The fenders 303 are respectively installed on both sides of the engine cover 202; the engine cover simulation section 304 and the fender connecting section 305 are an integrated structure; the engine cover simulation section 304 is an arc-shaped plate structure; the fender connecting section 305 is a triangular structure; the headlight simulation block 3 can simulate the standard headlight structure; the headlight simulation block 3 can detect whether the installation gap between the engine cover simulation section 304 and the two ends of the engine cover 202 meets the installation accuracy requirements; at the same time, the headlight simulation block 3 can detect whether the installation gap between the fender connecting section 305 and the headlight mounting groove 306 meets the installation accuracy requirements; thereby being able to determine whether the installation gap between the front end of the engine cover 202 and the fender 303 meets the installation accuracy requirements; at the same time, being able to detect whether the installation gap between the standard headlight and the fender 303 meets the installation accuracy requirements; the fender 303 is connected with a headlight positioning hole. If the fender 303 is not installed in place, the mounting bolts on the car headlights cannot be normally connected to the headlight positioning holes, which causes the car headlights to be unable to be normally installed in the engine compartment.

[0048] The side rod 605 is connected with a fifth mounting block 401 ; the fifth mounting block 401 is connected with the front bumper simulation block 4 ; the front bumper simulation block 4 is arranged on one side of the fender 303 .

[0049] The fifth mounting block 401 is a square block; a through hole is provided on the fifth mounting block 401; the fifth mounting block 401 is fixedly connected to the side rod 605 through the through hole; the front bumper simulation block 4 is an arc-shaped plate; the front bumper simulation block 4 is fixedly connected to the side of the fifth mounting block 401.

[0050] The fender 303 includes a first mounting end surface 7 and a second mounting end surface 701 ; the headlight mounting groove 306 is arranged on the first mounting end surface 7 ; and the front bumper simulation block 4 is arranged on one side of the second mounting end surface 701 .

[0051] The end of the fender 303 is a V-shaped structure; the second mounting end face 701 is arranged at the bottom of the first mounting end face 7; the headlight mounting groove 306 is a triangular groove; the front bumper simulation block 4 can simulate the side structure of the standard front bumper structure; the front bumper simulation block 4 can detect whether the installation gap between the side of the standard front bumper structure and the second mounting end face 701 of the fender 303 meets the installation accuracy requirements.

[0052] A method for detecting an engine compartment opening size detection bracket, the detection method comprising the following steps:

[0053] 1) Connect the mounting plate 5 to the nacelle end plate 502;

[0054] 2) The front cover simulation block 2 is arranged at the bottom of the engine cover plate 202; the headlight simulation block 3 is arranged on both sides of the engine cover plate 202; and the fender connecting section 305 of the headlight simulation block 3 is arranged in the headlight installation groove 306; the front bumper simulation block 4 is arranged on one side of the second installation end surface 701;

[0055] 3) Measure the gap between the front cover simulation block 2 and the engine cover plate 202; measure the gap between the headlight simulation block 3 and the engine cover plate 202; measure the gap between the headlight simulation block 3 and the fender 303; measure the gap between the front bumper simulation block 4 and the second mounting end surface 701.

[0056] Step 1) can realize the stable connection between the device and the vehicle body, and can judge whether the spacing, relative height and depth installation position between the two engine compartment end plates 502 meet the DTS (Dimensional Technical Specifications) size requirements; Step 2) can detect whether the installation gap between the engine cover 202 and the top of the standard front bumper meets the quality requirements; Step 2) can detect whether the installation gap between the engine cover simulation section 304 and the two ends of the engine cover 202 meets the installation accuracy requirements; At the same time, the headlight simulation block 3 can detect whether the installation gap between the fender connecting section 305 and the headlight mounting groove 306 meets the installation accuracy requirements; Thus, it can be judged whether the installation gap between the front end of the engine cover 202 and the fender 303 meets the installation accuracy requirements; Step 2) can detect whether the installation gap between the side of the standard front bumper structure and the second mounting end face 701 of the fender 303 meets the installation accuracy requirements; Step 3) accurately judge whether the installation gap of each component meets the installation accuracy requirements through measurement data.

[0057] The specific workflow of the present invention is as follows:

[0058] 1) Connect the mounting plate 5 to the nacelle end plate 502;

[0059] 2) The front cover simulation block 2 is arranged at the bottom of the engine cover plate 202; the headlight simulation block 3 is arranged on both sides of the engine cover plate 202; and the fender connecting section 305 of the headlight simulation block 3 is arranged in the headlight installation groove 306; the front bumper simulation block 4 is arranged on one side of the second installation end surface 701;

[0060] 3) Measure the gap between the front cover simulation block 2 and the engine cover plate 202; measure the gap between the headlight simulation block 3 and the engine cover plate 202; measure the gap between the headlight simulation block 3 and the fender 303; measure the gap between the front bumper simulation block 4 and the second mounting end surface 701.

[0061] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. An engine compartment opening size detection bracket, characterized in that: The invention comprises a mounting frame (1); the mounting frame (1) is respectively provided with a front cover simulation block (2), a headlight simulation block (3), a front bumper simulation block (4) and a mounting plate (5); the mounting plate (5) is connected to the engine compartment.

2. The engine compartment opening size detection bracket according to claim 1, characterized in that: The mounting frame (1) comprises a top frame (6) and a bottom mounting rod (601); a connecting rod (602) is provided between the top frame (6) and the bottom mounting rod (601); the front cover simulation block (2), the headlight simulation block (3) and the front bumper simulation block (4) are all connected to the top frame (6); and the mounting plate (5) is provided on the bottom mounting rod (601).

3. The engine compartment opening size detection bracket according to claim 2, characterized in that: A first mounting block (501) is provided on the bottom mounting rod (601); the first mounting blocks (501) are respectively provided at two ends of the bottom mounting rod (601); the first mounting block (501) is connected to the mounting plate (5); the engine compartment comprises a cabin end plate (502); a positioning pin (503) is provided on the cabin end plate (502); a positioning hole (504) is provided on the mounting plate (5); the mounting plate (5) is tightly pressed against the cabin end plate (502), and the positioning pin (503) is inserted into the positioning hole (504).

4. An engine compartment opening size detection bracket according to any one of claims 2-3, characterized in that: The top frame (6) comprises a first mounting rod (603) and a second mounting rod (604); the first mounting rod (603) is connected to a second mounting block (201); the second mounting block (201) is connected to the front cover simulation block (2); the engine compartment comprises an engine cover plate (202); the engine cover plate (202) is arranged on the top of the front cover simulation block (2).

5. The engine compartment opening size detection bracket according to claim 4, characterized in that: The first mounting rod (603) is arranged on a side of the top frame (6) away from the cabin end plate (502); a plurality of the front cover simulation blocks (2) are arranged on the first mounting rod (603).

6. The engine compartment opening size detection bracket according to claim 5, characterized in that: A third mounting block (301) is provided on the first mounting rod (603); the third mounting blocks (301) are respectively provided at two ends of the first mounting rod (603); a side rod (605) is provided between the first mounting rod (603) and the second mounting rod (604); a fourth mounting block (302) is provided on the side rod (605); one end of the headlight simulation block (3) is connected to the third mounting block (301); and the other end of the headlight simulation block (3) is connected to the fourth mounting block (302).

7. The engine compartment opening size detection bracket according to claim 6, characterized in that: The engine compartment includes a fender (303); the fender (303) is arranged on one side of the engine cover (202); the headlight simulation block (3) includes an engine cover simulation section (304) and a fender connecting section (305); the engine cover simulation section (304) is arranged on one side of the engine cover (202); a headlight mounting groove (306) is provided on the fender (303); the fender connecting section (305) is arranged in the headlight mounting groove (306).

8. The engine compartment opening size detection bracket according to claim 7, characterized in that: The side rod (605) is connected to a fifth mounting block (401); the fifth mounting block (401) is connected to the front bumper simulation block (4); the front bumper simulation block (4) is arranged on one side of the fender (303).

9. An engine compartment opening size detection bracket according to any one of claims 7-8, characterized in that: The fender (303) comprises a first mounting end surface (7) and a second mounting end surface (701); the headlight mounting groove (306) is arranged on the first mounting end surface (7); and the front bumper simulation block (4) is arranged on one side of the second mounting end surface (701).

10. A method for detecting the engine compartment opening size detection bracket according to any one of claims 1 to 9, characterized in that: The detection method comprises the following steps: 1) Connecting the mounting plate (5) to the cabin end plate (502); 2) The front cover simulation block (2) is arranged at the bottom of the engine cover plate (202); the headlight simulation block (3) is arranged on both sides of the engine cover plate (202); and the fender connecting section (305) of the headlight simulation block (3) is arranged in the headlight installation groove (306); and the front bumper simulation block (4) is arranged on one side of the second installation end surface (701); 3) measuring the gap between the front cover simulation block (2) and the engine cover plate (202); measuring the gap between the headlight simulation block (3) and the engine cover plate (202); measuring the gap between the headlight simulation block (3) and the fender (303); measuring the gap between the front bumper simulation block (4) and the second mounting end surface (701).

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