Body assembly device

Abstract

The present invention discloses a vehicle body assembly device, wherein the vehicle body has a first connecting plate and a second connecting plate, the first connecting plate extending in a left-right direction, the second connecting plate including an extension section and an overlap section connected in sequence and arranged at an angle, the overlap section extending in the left-right direction and overlapping the first connecting plate, the vehicle body assembly device including a base and a pushing mechanism, the base having a movable stroke in the left-right direction for synchronous movement with the second connecting plate; the pushing mechanism being mounted on the base, the pushing mechanism including a pushing member and a first drive assembly, the pushing member being movable in a front-back direction, the first drive assembly driving the pushing member to move forward, thereby pushing the end of the first connecting plate against the deformation in a direction away from the overlap section. The present invention aims to solve the problem that when the existing side panels and the lower body are assembled, the side panels and the rear panel are easily interfered with and collided with each other.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile manufacturing, and in particular to a vehicle body assembling device. Background Art

[0002] The heavy-duty truck body structure requires a pre-assembly process, in which the left and right side panels are assembled with the lower body to form a pre-assembled body assembly. During assembly, the left and right side panels are laterally translated from both sides to the lower body. Finally, the lower inner panel of the side panel is aligned with the floor sill plate in the Y direction of the body coordinate system, and the rear outer panel of the side panel is aligned with the rear outer panel in the X direction.

[0003] The fitting surface between the rear outer panel of the side panel and the rear outer panel is 0° fitting in the X direction. During the splicing process, the splicing gap is about 20mm of stroke and is 0. If there is deviation in the accuracy of the sheet metal or the fixture, the side outer panel and the rear outer panel will interfere with and collide with each other during the splicing process, causing damage to the vehicle body and production line stoppage accidents. Summary of the Invention

[0004] The main purpose of the present invention is to provide a vehicle body assembly device, which aims to solve the problem that the side panel outer panel and the rear panel outer panel are easily interfered and collided when the side panel and the lower body are assembled.

[0005] To achieve the above objectives, the present invention provides a vehicle body assembly device, wherein the vehicle body has a first connecting plate and a second connecting plate, the first connecting plate extending in a left-right direction, the second connecting plate including an extending section and an overlapping section connected in sequence and arranged at an angle, the overlapping section extending in the left-right direction and overlapping the first connecting plate, the vehicle body assembly device comprising:

[0006] a base having a movable travel in a left-right direction for synchronous movement with the second connecting plate; and

[0007] A pushing mechanism is installed on the base, and the pushing mechanism includes a pushing member and a first driving assembly. The pushing member can move in the forward and backward directions. The first driving assembly drives and connects the pushing member to drive the pushing member to move forward to push the end of the first connecting plate to deform in the direction away from the overlapping section.

[0008] Optionally, the pushing member includes:

[0009] a body extending in the left-right direction, wherein the left end of the body is connected to the first drive assembly; and

[0010] The convex portion is provided at the right end of the main body and is used to protrude from the overlapping section in the left and right directions and upwards. The convex portion is used to press against the end of the first connecting plate and deform in a direction away from the overlapping section.

[0011] Optionally, the size of the protrusion in the left and right directions is gradually reduced from back to front.

[0012] Optionally, the convex portion includes:

[0013] A guide slope, the guide slope being upward in front and rear directions, with its rear end tilted to the right; and

[0014] Two flat surfaces, including a first flat surface and a second flat surface respectively connected to the front and rear ends of the guide inclined surface, the first flat surface extending in the left-right direction and being used to contact the first connecting plate, and the second flat surface extending in the front-back direction;

[0015] Wherein, the connection between the guiding inclined surface and the two straight surfaces is a curved surface transition.

[0016] Optionally, the inclination angle of the guiding slope is a, 30°≤a≤45°.

[0017] Optionally, the pushing mechanism includes a movable seat, which is slidably mounted to the base in a front-rear direction, and the movable seat has a long vehicle stop position and a short vehicle stop position spaced apart in its movable travel, so that when the movable seat moves to the long vehicle stop position or the short vehicle stop position, it can drive the pushing member to correspondingly push the first connecting plate of the long vehicle body or the first connecting plate of the short vehicle body;

[0018] The pushing member and the first driving assembly are arranged on the movable seat.

[0019] Optionally, the base includes:

[0020] A mounting portion mounted on a fixture moving mechanism for clamping the first connecting plate; and

[0021] The slide rail extends in the front-back direction and is installed on the right side of the installation portion. The slide rail is used for sliding installation of the movable seat.

[0022] Optionally, the right side of the mounting portion is provided with a long vehicle stop block and a short vehicle stop block spaced apart in the front-to-back direction, and the long vehicle stop block and the short vehicle stop block can be offset against the movable seat so that the movable seat stops at the long vehicle stop position or the short vehicle stop position.

[0023] Optionally, an abutment block is provided on the right side of the mounting portion, the abutment block is spaced apart from the slide rail, the short vehicle stop block and the long vehicle stop block, and the abutment block is used to abut against the second connecting plate.

[0024] Optionally, a push position stop block is further provided on the movable seat, and the push position stop block is located on the front side of the movable seat. The push position stop block is used to abut against the left end of the push member when the right end of the push member presses against the end of the first connecting plate and deforms in the direction away from the overlapping section.

[0025] The cam is moved to a position where the second link is moved from the left to the right, and the cam is moved to a position where the second link is moved from the left to the right, and the cam is moved to a position where the second link is moved from the left to the right, and the cam is moved to a position where the second link is moved from the right to the right, and the cam is moved to a position where the second link is moved from the left to the right, and the cam is moved to a position where the second link is moved from the left to the right, and the cam is moved to a position where the second link is moved from the right to the right, and the cam is moved to a position where the second link is moved from the In this way, when the vehicle bodies are assembled, the first connecting plate and the second connecting plate will not interfere with each other, thereby avoiding collisions during assembly and improving assembly accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0027] Figure 1 It is a perspective schematic diagram of an embodiment of a vehicle body in the prior art;

[0028] Figure 2 for Figure 1 Schematic diagram of the three-dimensional decomposition of

[0029] Figure 3 for Figure 1 A schematic diagram of the structure of the connection between the lower body and the side panel;

[0030] Figure 4 A three-dimensional schematic diagram of the vehicle body assembling device provided by the present invention;

[0031] Figure 5 for Figure 4 A front view schematic diagram of

[0032] Figure 6 for Figure 4 Schematic top view of

[0033] Figure 7 for Figure 4 An enlarged schematic diagram of a partial structure of the push member;

[0034] Figure 8 for Figure 4 A schematic diagram of the structure of the body assembly device installed on the fixture moving mechanism;

[0035] Figure 9 for Figure 8 An enlarged schematic diagram of part of the structure.

[0036] Description of Figure Numbers:

[0037]

[0038] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0040] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0041] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0042] The heavy-duty truck body structure requires a pre-assembly process, in which the left and right side panels are assembled with the lower body to form a pre-assembled body assembly. During assembly, the left and right side panels are laterally translated from both sides to the lower body. Finally, the lower inner panel of the side panel is aligned with the floor sill plate in the Y direction of the body coordinate system, and the rear outer panel of the side panel is aligned with the rear outer panel in the X direction.

[0043] The fitting surface between the rear outer panel of the side panel and the rear outer panel is 0° fitting in the X direction. During the splicing process, the splicing gap is about 20mm of stroke and is 0. If there is deviation in the accuracy of the sheet metal or the fixture, the side outer panel and the rear outer panel will interfere with and collide with each other during the splicing process, causing damage to the vehicle body and production line stoppage accidents.

[0044] In view of this, the present invention provides a vehicle body assembly device for assisting the assembly of the side panels and the rear panel, avoiding interference and collision between the side panel outer panels and the rear panel outer panels, and improving the assembly accuracy. Figures 1 to 3 An embodiment of a vehicle body in the prior art; Figures 4 to 9 This is an embodiment of the vehicle body assembling device provided by the present invention.

[0045] Please refer to Figure 1 、 Figure 3 、 Figure 4 and Figure 8 The vehicle body a has a first connecting plate a211 and a second connecting plate a111, the first connecting plate a211 extends in the left-right direction, the second connecting plate a111 includes an extension section a1112 and an overlapping section a1111 connected in sequence and arranged at an angle, the overlapping section a1111 extends in the left-right direction and overlaps the first connecting plate a211, the vehicle body splicing device 100 includes a base 1 and a pushing mechanism 2, the base 1 has a movable stroke in the left-right direction for synchronous movement with the second connecting plate a111; the pushing mechanism 2 is installed on the base 1, the pushing mechanism 2 includes a pushing member 21 and a first driving assembly 22, the pushing member 21 can move in the front-back direction, the first driving assembly 22 drives the pushing member 21 to drive the pushing member 21 to move forward, so as to push the end of the first connecting plate a211 to deform in the direction away from the overlapping section a1111.

[0046] In the technical solution of the present invention, the second connecting plate a111 has a movable stroke from left to right, and the base 1 moves synchronously with the second connecting plate a111; before the assembling, the body assembling device 100 is first installed on the clamp moving mechanism b, and then the second connecting plate a111 is installed on the clamp moving mechanism b. At this time, the first driving mechanism drives the pushing member 21 to move forward to the pushing position. At the pushing position, the front end of the pushing member 21 is set forward beyond the end of the overlapping section a1111; during the assembling process of the body a, the base 1 follows the second connecting plate When a111 moves from left to right, the front end of the pushing member 21 will first contact the end of the first connecting plate a211 and push against the end of the first connecting plate a211 to deform in the direction away from the overlapping section a1111. As the second connecting plate a111 moves, the pushing member 21 slides on the first connecting plate a211 until the overlapping section a1111 is located on the side of the end of the second connecting plate a111 away from the vehicle body a. The pushing member 21 is then driven backward to cause the first connecting plate a211 to rebound and overlap the overlapping section a1111, completing the assembly. In this way, when the vehicle body a is assembled, the first connecting plate a211 and the second connecting plate a111 will not interfere with each other, avoiding collisions during assembly and improving assembly accuracy.

[0047] It should be noted that, in this embodiment, please refer to Figures 1 to 3 The side panel a1 includes a side panel outer panel a11 and a side panel inner panel a12 extending in the left-right direction. The side panel outer panel a11 is configured as a second connecting panel a111. The lower body a2 includes a rear panel outer panel a21 and a floor sill panel a22. The rear panel outer panel a21 is configured as a first connecting panel a211. The floor sill panel a22 extends in the front-to-rear direction, and the rear end of the floor sill panel a22 is connected to the rear panel outer panel a21. The rear end of the side panel inner panel a12 is bent rightward and connected to the floor sill panel a22. The clamp moving mechanism b is movable in the left-right direction and is used to clamp the side panel a1 and install the vehicle body assembly device 100, so that the second connecting panel a111 can move in the left-right direction, and the vehicle body assembly device 100 moves synchronously with the second connecting panel a111.

[0048] Further, refer to Figure 4 and Figure 5The pushing member 21 includes a main body 211 and a protrusion 212. The main body 211 extends in the left-right direction. The left end of the main body 211 is connected to the first drive assembly 22, so that the first drive assembly 22 can drive the pushing member 21 to move in the front-back direction. The protrusion 212 is provided at the right end of the main body 211 and is provided to protrude from the overlapping section a1111 in the left-right and upward direction. During the assembly process of the vehicle body a, the protrusion 212 can avoid the overlapping section a1111 and directly abut against the connecting end, thereby forcing the end of the first connecting plate a211 to deform in a direction away from the overlapping section a1111. In this way, the structure is simple and the operation is easy.

[0049] Furthermore, in the present invention, the shape of the protrusion 212 is not limited, as long as it can resist the first connecting plate a211 and deform in the direction away from the overlapping section a1111. In one embodiment, the left and right dimensions of the protrusion 212 are gradually reduced from back to front, so that the protrusion 212 can be conical.

[0050] In another embodiment, referring to Figure 7 The convex portion 212 includes a guiding inclined surface 2121 and two flat surfaces 2122. The guiding inclined surface 2121 is upward in the front and rear directions, and its rear end is inclined to the right. The two flat surfaces 2122 include a first flat surface and a second flat surface respectively connected to the front and rear ends of the guiding inclined surface 2121. The first flat surface extends in the left and right directions and is used to contact the first connecting plate a211. The second flat surface extends in the front and rear directions. The connection between the guiding inclined surface 2121 and the two flat surfaces 2122 is a curved transition. Therefore, when the pushing member 21 pushes, the first flat surface first contacts with the first connecting plate a211. As the pushing member 21 continues to move to the right, the first connecting plate a211 is pushed and deformed. Specifically, the left end of the first connecting plate a211 tilts forward, and the guiding inclined surface 2121 also contacts with the first connecting plate a211 and slides on the first connecting plate a211. In this way, the force-bearing area of ​​the first connecting plate a211 is increased to avoid being scratched by the convex portion 212, and the connection between the guiding inclined surface 2121 and the two flat surfaces 2122 is a curved surface transition, which further reduces damage to the first connecting plate a211 and improves the splicing quality.

[0051] Specifically, continue to refer to Figures 7 to 9 The inclination angle of the guiding slope 2121 is a, 30°≤a≤45°. When a=40°, the guiding slope 2121 fits more closely to the first connecting plate a211, and the pressure on the first connecting plate a211 is minimal.

[0052] More specifically, in this embodiment, the cross-sectional dimension of the main body 211 is 20mm×20mm, the dimension of the push member 21 in the left-right direction is 130mm, and the dimension of the guide slope 2121 in the left-right direction is 30mm, so as to cover the fitting stroke of the first connecting plate a211 and the overlapping portion; the guide slope 2121 is larger than the dimension b of the main body 211 in the front-to-back direction, 3mm≤b≤5mm, and in this embodiment, b=3mm, to ensure that when the overlapping section a1111 is located on the rear side of the first connecting plate a211, there is a gap between the overlapping section a1111 and the first connecting plate a211 without interference or collision; the guide slope 2121 is larger than the dimension c of the main body 211 in the left-to-right direction, 5mm≤c≤8mm, and in this embodiment, c=5mm, so that the protrusion can contact the first connecting plate a211 in the front-to-back direction, be separated from the overlapping portion, and not interfere or collide with the overlapping portion.

[0053] In this embodiment, the first driving mechanism is configured as a first cylinder 221, the cylinder seat of the first cylinder 221 is fixed to the base 1, and the movable rod of the first cylinder 221 is driven and connected to the left end of the body 211, so that the pushing member 21 can move forward and backward.

[0054] In this embodiment, referring to Figures 4 to 6 The pushing mechanism 2 includes a movable seat 3, which can be slidably mounted to the base 1 in the front-rear direction. The movable seat 3 has a long vehicle stop position and a short vehicle stop position spaced apart in its movable stroke, so that when the movable seat 3 moves to the long vehicle stop position or the short vehicle stop position, it can drive the pushing member 21 to correspondingly push the first connecting plate a211 of the long vehicle body a or the first connecting plate a211 of the short vehicle body a;

[0055] The pushing member 21 and the first driving assembly 22 are mounted on the movable seat 3. Thus, the movable seat 3 can drive the pushing member 21 to move to the long vehicle stop position or the short vehicle stop position, thereby assisting in the assembly of the side panels a1 and the lower body a2 of the long vehicle body a or the short vehicle body a, thereby improving versatility.

[0056] In the present invention, the structure of the base 1 is not limited, as long as the movable seat 3 can be moved in the front-to-back direction and can be installed to the clamp moving mechanism b. In this embodiment, the base 1 includes a mounting portion 11 and a slide rail 12. The mounting portion 11 is installed on the clamp moving mechanism b for clamping the first connecting plate a211; the slide rail 12 extends in the front-to-back direction and is installed on the right side of the mounting portion 11. The slide rail 12 is used for sliding installation of the movable seat 3; thereby, the movable seat 3 can move in the front-to-back direction, has a simple structure, and is easy to set up.

[0057] Specifically, in this embodiment, referring to Figures 4 to 6 The right side of the mounting portion 11 is provided with a long vehicle stop block 41 and a short vehicle stop block 42 spaced apart in the front-to-rear direction. The long vehicle stop block 41 is located in front of the short vehicle stop block 42. The long vehicle stop block 41 and the short vehicle stop block 42 can be abutted against the movable seat 3 so that the movable seat 3 stops at the long vehicle stop position or the short vehicle stop position.

[0058] It should be noted that the mounting portion 11 is provided with two supports 61 corresponding to the long vehicle stop block 41 and the short vehicle stop block 42. Each of the supports 61 is arranged in an "L" shape, and a gasket box 62 is also provided between the long vehicle stop block 41 or the short vehicle stop block 42 and the corresponding support 61 to facilitate precise adjustment of the long vehicle stop block 41 or the short vehicle stop block 42 in the front and rear directions of the mounting portion 11.

[0059] Specifically, refer to Figure 4 and Figure 6 In order to ensure the installation stability of the vehicle body splicing device 100, in this embodiment, an abutment block 5 is provided on the right side of the mounting portion 11. The abutment block 5 is spaced apart from the slide rail 12, the short vehicle stop block 42, and the long vehicle stop block 41. When the vehicle body splicing device 100 is installed on the clamp moving mechanism b, and the clamp movable mechanism clamps the side panel a1, the vehicle body splicing device 100 is located between the clamp moving mechanism b and the side panel a1, and the abutment block 5 is used to abut against the second connecting plate a111, thereby ensuring the distance between the vehicle body splicing device 100 and the side panel a1, ensuring installation stability, and improving splicing accuracy.

[0060] In this embodiment, referring to Figures 4 to 6The movable seat 3 is also provided with a push position stop block 43, and the push position stop block 43 is located on the front side of the movable seat 3. The push position stop block 43 is used to abut against the left end of the pushing member 21 when the right end of the pushing member 21 presses against the end of the first connecting plate a211 and deforms in the direction away from the overlapping section a1111. It should be noted that the mounting portion 11 is also provided with the support 61 corresponding to the pushing stop block, and the support 61 is arranged in an "L" shape. The support 61 includes a mounting section and the abutting section connected in sequence, and the mounting section extends in the front-to-back direction and is installed on the mounting portion 11, and the abutting section extends in the left-to-right direction. One end of the abutting section is connected to the front end of the mounting section, and the other end is located at the front side of the abutting member. The pushing position stop block 43 is connected to the rear end of the abutting end, and a gasket box 62 is provided between the support 61 and the abutting end, so that the position of the abutting section in the front-to-back direction can be adjusted; in this way, the pushing member 21 can be stopped at the pushing position, and the structure is compact and occupies little space.

[0061] In addition, the movable seat 3 is also equipped with a second driving mechanism, and the second driving structure is set as a second cylinder 71. The cylinder seat of the second cylinder 71 is installed on the movable seat 3, and the cylinder rod of the first cylinder 221 drives the cylinder seat of the second cylinder 71. The cylinder rod of the second cylinder 71 can be extended and retracted in the forward and backward directions, and drives the push member 21.

[0062] In the present invention, the vehicle body splicing device 100 improves the splicing accuracy, and the front-to-back deviation along the vehicle body a is increased from ±2.0 mm to ±1 mm, the overall vehicle accuracy qualification rate is increased by 5% to 8%, and the collision failure rate is close to zero.

[0063] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A vehicle body assembly device, wherein the vehicle body comprises a first connecting plate and a second connecting plate, wherein the first connecting plate extends in a left-right direction, and the second connecting plate comprises an extending section and an overlapping section which are sequentially connected and arranged at an angle, wherein the overlapping section extends in a left-right direction and overlaps the first connecting plate, characterized in that: The vehicle body assembling device comprises: a base having a movable travel in a left-right direction for synchronous movement with the second connecting plate; and a pushing mechanism mounted on the base, the pushing mechanism comprising a pushing member and a first driving assembly, the pushing member being movable in a forward and backward direction, the first driving assembly drivingly connected to the pushing member to drive the pushing member to move forward, thereby pushing against the end of the first connecting plate to deform in a direction away from the overlapping section; The pushing member includes a body and a protrusion, the body extending in the left-right direction, the left end of the body being connected to the first driving assembly; the protrusion is provided at the right end of the body and is provided to protrude from the overlapping section in the left-right and upward directions, the protrusion is used to press against the end of the first connecting plate and deform in a direction away from the overlapping section, and the size of the protrusion in the left-right direction is gradually reduced from the back to the front; The convex portion includes a guiding inclined surface and two flat surfaces. The guiding inclined surface is upward in the front and rear directions, and its rear end is inclined to the right. The two flat surfaces include a first flat surface and a second flat surface respectively connected to the front and rear ends of the guiding inclined surface. The first flat surface extends in the left and right directions and is used to contact the first connecting plate. The second flat surface extends in the front and rear directions. The connection between the guiding inclined surface and the two flat surfaces is a curved transition.

2. The vehicle body assembly device according to claim 1, wherein: The inclination angle of the guiding slope is a, 30°≤a≤45°.

3. The vehicle body assembling device according to claim 1, wherein: The pushing mechanism includes a movable seat, which is slidably mounted to the base in a front-to-rear direction. The movable seat has a long vehicle stop position and a short vehicle stop position spaced apart in its movable travel, so that when the movable seat moves to the long vehicle stop position or the short vehicle stop position, it can drive the pushing member to correspondingly push the first connecting plate of the long vehicle body or the first connecting plate of the short vehicle body; The pushing member and the first driving assembly are arranged on the movable seat.

4. The vehicle body assembly device according to claim 3, wherein: The base comprises: A mounting portion mounted on a fixture moving mechanism for clamping the first connecting plate; and The slide rail extends in the front-back direction and is installed on the right side of the installation portion. The slide rail is used for sliding installation of the movable seat.

5. The vehicle body assembling device according to claim 4, wherein: A long car stop block and a short car stop block are provided on the right side of the mounting portion at intervals in the front-to-back direction. The long car stop block and the short car stop block can abut against the movable seat so that the movable seat stops at the long car stop position or the short car stop position.

6. The vehicle body assembling device according to claim 5, wherein: An abutment block is provided on the right side of the mounting portion. The abutment block is spaced apart from the slide rail, the short vehicle stop block and the long vehicle stop block. The abutment block is used to abut against the second connecting plate.

7. The vehicle body assembling device according to claim 4, wherein: The movable seat is also provided with a pushing stop block, which is located on the front side of the movable seat. The pushing stop block is used to abut against the left end of the pushing member when the right end of the pushing member presses against the end of the first connecting plate and deforms in the direction away from the overlapping section.

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