A matching structure of door guard plate and inner triangle block and its assembly process

Abstract

The invention discloses a matching structure of a door guard plate and an inner triangular block and an assembly process thereof, comprising a door sheet metal, a door guard plate, an inner triangular block and a screw, wherein a threaded hole is provided on the door sheet metal, a cylindrical hole is provided in the middle of the upper end of the door guard plate, the screw passes through the cylindrical hole and is tightened in the threaded hole, so that the door guard plate and the door sheet metal are closely matched, a cross positioning hole is provided beside the cylindrical hole, a first clamping groove and a second clamping groove are respectively provided on both sides of the upper end of the door guard plate, a third clamping groove is provided on the side of the door guard plate, a cross positioning pin is provided in the middle part of the lower end of the inner triangular block, a first buckle and a second buckle are respectively provided on both sides of the cross positioning pin, and a third buckle is provided on the side of the lower end of the inner triangular block, the inner triangular block is matched and connected with the door guard plate, the cross positioning pin is inserted into the cross positioning hole for positioning, the first buckle is inserted into the first clamping groove for clamping, the second buckle is inserted into the second clamping groove for clamping, and the third buckle is inserted into the third clamping groove for clamping, thereby ensuring the Y-direction position accuracy of the door guard plate and ensuring the X-direction or Z-direction position accuracy of the inner triangular block.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile design, and in particular relates to a matching structure of a door guard plate and an inner triangular block and an assembly process thereof. Background Art

[0002] In normal production and assembly, the door guard of the car sinks due to its own weight, causing the gap between the door guard and the inner triangular block to become larger, forming a wedge-shaped gap, which makes it difficult to control the gap surface difference between the door guard of the car and the inner triangular block.

[0003] In addition, the inner wall of the car's door guard panel and the side of the dashboard have a gap fit, and the car's door guard panel sinks, making the Y-axis position of the door guard panel difficult to control. In severe cases, the inner wall of the door guard panel contacts the side of the dashboard, generating friction noise during driving and affecting ride comfort.

[0004] In addition, frequent opening and closing of the car door causes the inner triangular block to be constantly squeezed by the sealing strip on the door frame, which can cause the inner triangular block to move in the X or Z direction and become loose. Summary of the invention

[0005] The present invention provides a matching structure of a door guard plate and an inner triangular block and an assembly process thereof. A screw is passed through a cylindrical hole and tightened in a threaded hole, so that the door guard plate and the door sheet metal are closely matched, and the gap between the door guard plate and the inner triangular block becomes larger due to the door guard plate sinking due to its own weight, thereby ensuring the Y-direction position accuracy of the door guard plate; a cross positioning pin is inserted into the cross positioning hole for positioning, a first buckle is inserted into a first card slot for clamping, a second buckle is inserted into a second card slot for clamping, and a third buckle is inserted into a third card slot for clamping, thereby ensuring the matching connection between the inner triangular block and the door guard plate; a connecting buckle 1 and a connecting buckle 2 are connected to the inside of the door sheet metal, thereby ensuring the position accuracy of the inner triangular block in the X direction or the Z direction.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a matching structure of a door guard plate and an inner triangular block, comprising a door sheet metal, a door guard plate, an inner triangular block and a screw, the door sheet metal is provided with a threaded hole, the middle of the upper end of the door guard plate is provided with a cylindrical hole, the screw passes through the cylindrical hole and is tightened in the threaded hole, so that the door guard plate and the door sheet metal are closely matched, and a cross positioning hole is provided beside the cylindrical hole, the upper end of the door guard plate is respectively provided with a first clamping groove and a second clamping groove, the side of the door guard plate is provided with a third clamping groove, the middle part of the lower end of the inner triangular block is provided with a cross positioning pin, the two sides of the cross positioning pin are respectively provided with a first buckle and a second buckle, and the side of the lower end of the inner triangular block is provided with a third buckle, the inner triangular block is matched and connected with the door guard plate, the cross positioning pin is inserted into the cross positioning hole for positioning, the first buckle is inserted into the first clamping groove for clamping, the second buckle is inserted into the second clamping groove for clamping, and the third buckle is inserted into the third clamping groove for clamping.

[0007] Preferably, a connecting buckle 1 is provided at the upper end of the inner triangular block, a connecting buckle 2 is provided at the middle of the inner triangular block, and the connecting buckle 1 and the connecting buckle 2 are connected to the inside of the door sheet metal.

[0008] An assembly process of a matching structure of a door guard plate and an inner triangular block, characterized in that the specific steps are as follows:

[0009] Step 1: Snap the lower end of the door guard plate into place with the inner wall of the door sheet metal, and then align the cylindrical hole on the upper end of the door guard plate with the threaded hole on the door sheet metal;

[0010] Step 2: Pass the screw through the cylindrical hole and tighten it in the threaded hole to make the door guard plate fit tightly with the door sheet metal;

[0011] Step 3: Align the cross positioning pin in the middle of the lower end of the inner triangular block with the cross positioning hole on the door guard plate, and then press the lower end of the inner triangular block onto the door guard plate to insert the cross positioning pin into the cross positioning hole for positioning, insert the first buckle into the first card slot for locking, insert the second buckle into the second card slot for locking, and insert the third buckle into the third card slot for locking;

[0012] Step 4: Press the middle of the inner triangle block onto the door guard plate to connect the second connecting buckle with the inside of the door sheet metal;

[0013] Step 5: Press the upper part of the inner triangle block onto the door guard plate to connect the second connecting buckle to the inside of the door sheet metal.

[0014] Preferably, after the door guard plate and the door sheet metal are tightly matched in step 2, the Y-direction gap between the door guard plate and the side of the instrument panel is 2mm±0.01mm.

[0015] Preferably, in steps three, four and five, the lower end of the inner triangular block is connected to the door guard plate, and the middle and upper parts of the inner triangular block are respectively connected to the door sheet metal. Then, the X-direction clearance of the inner triangular block is 0 mm, and the Z-direction clearance of the door guard plate and the inner triangular block is 2 mm ± 0.01 mm.

[0016] The beneficial effects of adopting the above technical solution are:

[0017] 1. The matching structure of the door guard plate and the inner triangular block is that the screws pass through the cylindrical holes and are tightened in the threaded holes, so that the door guard plate and the door sheet metal are closely matched. The strong connection through the screws avoids the door guard plate from sinking due to its own weight, which causes the gap with the inner triangular block to increase, and ensures the Y-axis position of the door guard plate. After the door guard plate and the door sheet metal are closely matched, the Y-axis gap between the door guard plate and the side of the instrument panel is 2mm±0.01mm.

[0018] 2. The matching structure of the door guard plate and the inner triangular block has a cross positioning hole beside the cylindrical hole, a first clamping groove and a second clamping groove are respectively provided on both sides of the upper end of the door guard plate, a third clamping groove is provided on the side of the door guard plate, a cross positioning pin is provided at the middle part of the lower end of the inner triangular block, a first buckle and a second buckle are respectively provided on both sides of the cross positioning pin, and a third buckle is provided on the side of the lower end of the inner triangular block, the inner triangular block is connected with the door guard plate for matching, and the cross positioning pin is inserted into the cross positioning hole for positioning, the first buckle is inserted into the first clamping groove for clamping, the second buckle is inserted into the second clamping groove for clamping, and the third buckle is inserted into the third clamping groove for clamping, thereby ensuring the matching connection between the inner triangular block and the door guard plate; the connecting buckle 1 and the connecting buckle 2 are connected with the inside of the door sheet metal, thereby ensuring the position of the inner triangular block in the X direction or Z direction, so that after the door guard plate and the door sheet metal are closely matched, the Y-direction clearance between the door guard plate and the side of the instrument panel is 2mm±0.01mm, and the Z-direction clearance between the door guard plate and the inner triangular block is 2mm±0.01mm.

[0019] The fastening point of the door guard plate screw of the present invention is hidden in the inner triangular block, so that the matching clearance between the door guard plate and the instrument panel can be ensured.

[0020] The present invention adopts hidden screws, which can reduce screw blockage, enhance the integrity of the door guard plate, optimize the shape, and save mold fees and unit costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the assembly drawing of the door sheet metal, door guard plate, inner triangle block and screws;

[0022] Figure 2 It is a schematic diagram of the door sheet metal structure;

[0023] Figure 3 It is a schematic diagram of the door guard plate structure;

[0024] Figure 4 It is the door sheet metal and door guard assembly drawing;

[0025] Figure 5 This is the assembly drawing of the door guard plate and the inner triangle block;

[0026] in:

[0027] 1. Door sheet metal; 2. Door guard plate; 3. Inner triangle block; 4. Screws;

[0028] 10. Threaded hole;

[0029] 2-1, cylindrical hole; 20, cross positioning hole; 21, first slot; 22, second slot; 23, third slot; 30, cross positioning pin; 31, first buckle; 32, second buckle; 33, third buckle; 34, connecting buckle one; 35, connecting buckle two. DETAILED DESCRIPTION

[0030] 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 concept and technical solution of the present invention and facilitating its implementation.

[0031] like Figures 1 to 5 As shown, the present invention relates to a matching structure of a door guard plate and an inner triangular block and an assembly process thereof, wherein screws are passed through cylindrical holes and tightened in threaded holes, so that the door guard plate and the door sheet metal are closely matched, and the gap between the door guard plate and the inner triangular block becomes larger due to the door guard plate sinking due to its own weight, thereby ensuring the Y-direction position of the door guard plate; a cross locating pin is inserted into the cross locating hole for positioning, a first buckle is inserted into a first card slot for clamping, a second buckle is inserted into a second card slot for clamping, and a third buckle is inserted into a third card slot for clamping, thereby ensuring the matching connection between the inner triangular block and the door guard plate; connecting buckle 1 and connecting buckle 2 are connected to the inside of the door sheet metal, thereby ensuring the position of the inner triangular block in the X-direction or Z-direction.

[0032] Specifically, Figures 1 to 5 As shown, a matching structure of a door guard plate and an inner triangular block includes a door sheet metal 1, a door guard plate 2, an inner triangular block 3 and a screw 4. Figure 2 As shown, the door sheet metal 1 is provided with a threaded hole 10. Figure 3 , Figure 4 As shown, a cylindrical hole 2-1 is provided in the middle of the upper end of the door guard plate 2, and the screw 4 passes through the cylindrical hole 2-1 and is tightened in the threaded hole 10, so that the door guard plate 2 and the door sheet metal 1 are tightly matched, and a cross positioning hole 20 is provided next to the cylindrical hole 2-1, and the first and second slots 21 and 22 are respectively provided on both sides of the upper end of the door guard plate 2, and a third slot 23 is provided on the side of the door guard plate 2, and a cross positioning pin 30 is provided in the middle of the lower end of the inner triangular block 3, and the first and second buckles 31 and 32 are respectively provided on both sides of the cross positioning pin 30, and a third buckle 33 is provided on the side of the lower end of the inner triangular block 3, and the inner triangular block 3 is connected with the door guard plate 2, and the cross positioning pin 30 is inserted into the cross positioning hole 20 for positioning, the first buckle 31 is inserted into the first slot 21 for clamping, the second buckle 32 is inserted into the second slot 22 for clamping, and the third buckle 33 is inserted into the third slot 23 for clamping.

[0033] like Figure 5 As shown, a connecting buckle 1 34 is provided at the upper end of the inner triangular block 3 , a connecting buckle 2 35 is provided at the middle of the inner triangular block 3 , and the connecting buckle 1 34 and the connecting buckle 2 35 are connected to the inside of the door sheet metal 1 .

[0034] An assembly process of a matching structure of a door guard plate and an inner triangular block, the specific steps are as follows:

[0035] Step 1: Clamp the lower end of the door guard plate 2 with the inner wall of the door sheet metal 1, and then align the cylindrical hole 2-1 at the upper end of the door guard plate 2 with the threaded hole 10 on the door sheet metal 1;

[0036] Step 2: Pass the screw 4 through the cylindrical hole 2-1 and tighten it in the threaded hole 10 to make the door guard plate 2 fit tightly with the door sheet metal 1;

[0037] Step 3: Align the cross positioning pin 30 at the middle of the lower end of the inner triangular block 3 with the cross positioning hole 20 on the door guard plate 2, and then press the lower end of the inner triangular block 3 onto the door guard plate 2, so that the cross positioning pin 30 is inserted into the cross positioning hole 20 for positioning, the first buckle 31 is inserted into the first card slot 21 for locking, the second buckle 32 is inserted into the second card slot 21 for locking, and the third buckle 33 is inserted into the third card slot 23 for locking;

[0038] Step 4: Press the middle of the inner triangular block 3 onto the door guard plate 2 to connect the second connecting buckle 35 with the inside of the door sheet metal 1;

[0039] Step 5: Press the upper part of the inner triangular block 3 onto the door guard plate 2 to connect the connecting buckle 34 with the inside of the door sheet metal 1.

[0040] After the door guard plate 2 and the door sheet metal 1 are tightly matched in the step 2, the Y-direction clearance between the door guard plate 2 and the side of the instrument panel is 2 mm±0.01 mm.

[0041] In the steps 3, 4 and 5, the lower end of the inner triangular block 3 is connected to the door guard plate 2, and the middle and upper parts of the inner triangular block 3 are respectively connected to the door sheet metal 1. Then, the X-direction clearance of the inner triangular block 3 is 0 mm, and the Z-direction clearance of the door guard plate 2 and the inner triangular block 3 is 2 mm ± 0.01 mm.

[0042] The specific working method is described below with specific embodiments:

[0043] Embodiment 1:

[0044] In the present invention, the screw 4 passes through the cylindrical hole 2-1 and is tightened in the threaded hole 10, so that the door guard plate 2 and the door sheet metal 1 are closely matched. The strong connection is prevented by the screw 4, which prevents the door guard plate 2 from sinking due to its own weight and causing the gap with the inner triangular block 3 to increase, thereby ensuring the Y-axis position of the door guard plate 2. After the door guard plate 2 and the door sheet metal 1 are closely matched, the Y-axis gap between the door guard plate 2 and the side of the instrument panel is 2mm±0.01mm.

[0045] Embodiment 2:

[0046] In the present invention, a cross positioning hole 20 is provided beside the cylindrical hole 2-1, a first card slot 21 and a second card slot 22 are respectively provided on both sides of the upper end of the door guard plate 2, a third card slot 23 is provided on the side of the door guard plate 2, a cross positioning pin 30 is provided at the middle of the lower end of the inner triangular block 3, a first buckle 31 and a second buckle 32 are respectively provided on both sides of the cross positioning pin 30, a third buckle 33 is provided on the side of the lower end of the inner triangular block 3, the inner triangular block 3 is connected with the door guard plate 2, and the cross positioning pin 30 is inserted into the cross positioning hole 20 for positioning, and the first buckle 31 is inserted into the cross positioning hole 20 for positioning. The first snap-in connector 32 is inserted into the second snap-in connector 22 and the third snap-in connector 33 is inserted into the third snap-in connector 23, thereby ensuring that the inner triangular block 3 is connected to the door guard panel 2 in a coordinated manner; the connecting snap-in 1 34 and the connecting snap-in 2 35 are connected to the inside of the door sheet metal 1, thereby ensuring the position of the inner triangular block 3 in the X direction or Z direction, so that after the door guard panel 2 is tightly matched with the door sheet metal 1, the Y-direction clearance between the door guard panel 2 and the side of the instrument panel is 2mm±0.01mm, and the Z-direction clearance between the door guard panel 2 and the inner triangular block 3 is 2mm±0.01mm.

[0047] The fastening points of the screws of the door guard plate 2 of the present invention are hidden in the inner triangular block 3, so that the matching clearance between the door guard plate 2 and the instrument panel can be ensured.

[0048] The present invention adopts hidden screws 4, which can reduce screw blocking, enhance the integrity of the door guard plate 2, optimize the shape, and save mold costs and unit costs.

[0049] 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 method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above-mentioned 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 assembly process for the matching structure of a door guard plate and an inner triangular block, characterized in that: The matching structure comprises a door sheet metal (1), a door guard plate (2), an inner triangular block (3) and a screw (4); the door sheet metal (1) is provided with a threaded hole (10); a cylindrical hole (2-1) is provided in the middle of the upper end of the door guard plate (2); the screw (4) passes through the cylindrical hole (2-1) and is screwed into the threaded hole (10) so that the door guard plate (2) and the door sheet metal (1) are tightly matched; a cross positioning hole (20) is provided beside the cylindrical hole (2-1); a first clamping groove (21) and a second clamping groove (22) are respectively provided on both sides of the upper end of the door guard plate (2); and a third clamping groove (21) is provided on the side of the door guard plate (2). The inner triangular block (3) is provided with a cross positioning pin (30) at the middle of the lower end, a first buckle (31) and a second buckle (32) are respectively provided on both sides of the cross positioning pin (30), and a third buckle (33) is provided on the side of the lower end of the inner triangular block (3). The inner triangular block (3) is connected with the door guard plate (2), the cross positioning pin (30) is inserted into the cross positioning hole (20) for positioning, the first buckle (31) is inserted into the first clamping slot (21) for clamping, the second buckle (32) is inserted into the second clamping slot (22) for clamping, and the third buckle (33) is inserted into the third clamping slot (23) for clamping; A first connecting buckle (34) is provided at the upper end of the inner triangular block (3), a second connecting buckle (35) is provided at the middle of the inner triangular block (3), and the first connecting buckle (34) and the second connecting buckle (35) are connected to the inside of the door sheet metal (1); The specific assembly steps include: Step 1: snap the lower end of the door guard plate (2) into place with the inner wall of the door sheet metal (1), and then align the cylindrical hole (2-1) at the upper end of the door guard plate (2) with the threaded hole (10) on the door sheet metal (1); Step 2: Pass the screw (4) through the cylindrical hole (2-1) and tighten it into the threaded hole (10) so that the door guard plate (2) and the door sheet metal (1) fit tightly together; Step 3: Align the cross positioning pin (30) at the middle of the lower end of the inner triangular block (3) with the cross positioning hole (20) on the door guard plate (2), and then press the lower end of the inner triangular block (3) onto the door guard plate (2) so that the cross positioning pin (30) is inserted into the cross positioning hole (20) for positioning, the first buckle (31) is inserted into the first slot (21) for locking, the second buckle (32) is inserted into the second slot (22) for locking, and the third buckle (33) is inserted into the third slot (23) for locking; Step 4: Press the middle of the inner triangular block (3) onto the door guard plate (2) to connect the second connecting buckle (35) to the inside of the door sheet metal (1); Step 5: Press the upper part of the inner triangular block (3) onto the door guard plate (2) to connect the connecting buckle 1 (34) to the inside of the door sheet metal (1); After the door guard plate (2) and the door sheet metal (1) are tightly matched in step 2, the Y-direction clearance between the door guard plate (2) and the side of the instrument panel is 2 mm±0.01 mm; In the steps 3, 4 and 5, the lower end of the inner triangular block (3) is connected to the door guard plate (2), and the middle and upper parts of the inner triangular block (3) are respectively connected to the door sheet metal (1). The clearance of the inner triangular block (3) in the X direction is 0 mm, and the clearance of the door guard plate (2) and the inner triangular block (3) in the Z direction is 2 mm±0.01 mm.

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