Combination testing fixture for front part of commercial vehicle

Abstract

The utility model provides a commercial vehicle front part combined testing fixture, which relates to the commercial vehicle detection field, and adopts the scheme that the commercial vehicle front part combined testing fixture comprises a base, a commercial vehicle skeleton model is arranged on the base, the commercial vehicle skeleton model comprises symmetrical sub-skeleton models, and the symmetrical sub-skeleton models have the same structure and are symmetrically arranged; or the commercial vehicle skeleton model comprises symmetric sub-skeleton models and asymmetric sub-skeleton models, and the symmetric sub-skeleton models have the same structure and are symmetrically arranged relative to the asymmetric sub-skeleton models; simulation blocks are detachably arranged on the symmetric sub-skeleton model and the asymmetric sub-skeleton model; the simulation blocks are used for simulating corresponding appearance covering parts at the front part of the commercial vehicle; and the symmetric sub-skeleton model and the asymmetric sub-skeleton model can also be detachably connected with a corresponding appearance covering part at the front part of the commercial vehicle. The detection tool can replace a functional model to carry out matching degree detection on parts at the front part of a commercial vehicle, the manufacturing cost of the detection tool is reduced, and metal resources are saved.

Description

Technical Field

[0001] The utility model relates to the field of commercial vehicle inspection, in particular to a front combined inspection tool for a commercial vehicle. Background Art

[0002] With the development of the domestic automobile industry, cars are designed to be safer and more beautiful, and the front end of commercial vehicles is the most important part of the entire exterior design. To ensure the beauty of the front end, the dimensional conformity of parts is becoming more and more important. At present, most commercial vehicle companies have only developed measurement methods such as double-cantilever three-coordinate and portable three-coordinate, but the measurement is time-consuming and labor-intensive, with low efficiency, and can only detect the dimensional accuracy of a single component, but cannot detect the matching status of the component with other components.

[0003] In the prior art, a functional master model, i.e., a standard car body, is used to detect the matching status of components. The standard car body can be said to be an advanced inspection fixture. It is a standardized car body model made in a 1:1 ratio based on the digital model of the car body after the product development reaches the stage of freezing the vehicle data. It is manufactured by CNC processing using a whole piece of aviation cast aluminum. The functional master model has close to zero deviation and is a true reproduction of the three-dimensional digital model. The outer cover and the interior and exterior trims must be installed on the functional master model for inspection to avoid deviations in matching after batch production and ensure the appearance quality of the vehicle.

[0004] Although the use of functional master models can detect the matching degree of components, there are many types of commercial vehicles. Making a functional master model of aviation cast aluminum for each model will result in high testing costs and waste of technical data. At the same time, commercial vehicle models are large, and the corresponding functional master models are heavy, which does not meet the concept of lightweight production. Utility Model Content

[0005] In order to solve the technical problem of high cost in the above-mentioned prior art of using functional models to detect the matching degree of commercial vehicle appearance parts, the utility model provides a commercial vehicle front combined inspection fixture, which can replace the functional model to detect the matching degree of the parts at the front of the commercial vehicle, reduce the manufacturing cost of the inspection fixture, and save metal resources.

[0006] The utility model adopts the following technical solution to solve the above technical problems: a front combined inspection fixture for a commercial vehicle, comprising a base, on which a commercial vehicle skeleton model is arranged, wherein the commercial vehicle skeleton model comprises two symmetrical sub-skeleton models, and the symmetrical sub-skeleton models have the same structure and are symmetrically arranged;

[0007] Or, the commercial vehicle skeleton model includes two symmetrical sub-skeleton models and one asymmetrical sub-skeleton model, and the symmetrical sub-skeleton models have the same structure and are symmetrically arranged with respect to the asymmetrical sub-skeleton model;

[0008] The symmetrical sub-frame model and the asymmetrical sub-frame model are both detachably provided with simulation blocks, and the simulation blocks are used to simulate the corresponding appearance covering parts of the front part of the commercial vehicle;

[0009] The symmetrical sub-skeleton model and the asymmetrical sub-skeleton model can also be detachably connected to the corresponding appearance covering parts of the front part of the commercial vehicle.

[0010] On the one hand, the utility model uses a combination of a model skeleton and a simulation block to replace a functional model to detect the appearance matching degree of corresponding parts at the front of a commercial vehicle, thereby reducing the manufacturing cost of the inspection fixture while solving the problem of metal resources and realizing a lightweight design. On the other hand, the utility model divides the front skeleton model of the commercial vehicle into symmetrical sub-parts, simplifies the structural design of the skeleton model, and improves the design and manufacturing efficiency of the inspection fixture.

[0011] Furthermore, the symmetrical sub-skeleton model and the asymmetrical sub-skeleton model are both provided with a plurality of connecting plates, the connecting plates are detachably connected to the simulation blocks, and the connecting plates can also be detachably connected to corresponding appearance covering parts at the front of the commercial vehicle.

[0012] Furthermore, a mounting plate is provided on the simulation block, and positioning pins and connecting bolts are vertically provided on the mounting plate. The positioning pins are clearance-matched with the pin holes on the connecting plate, and the connecting bolts are bolt-connected with the connecting plate.

[0013] The utility model can realize accurate installation of the simulation block and avoid misalignment through the positioning pin and bolt connection combination, thereby ensuring the accuracy of matching degree detection of corresponding appearance covering parts.

[0014] Furthermore, the connecting bolt is connected with a handle, and the handle is rotatably arranged on the simulation block. By arranging the handle, the simulation block can be quickly disassembled and assembled, thereby improving the installation efficiency.

[0015] Furthermore, the commercial vehicle skeleton model includes two symmetrical sub-skeleton models and one asymmetrical sub-skeleton model, and a bumper simulation bracket is detachably provided at the lower part of the symmetrical sub-skeleton model and / or the asymmetrical sub-skeleton model.

[0016] The utility model can install the bumper outer skin and detect the matching degree of the outer skin by arranging the bumper simulation bracket, and can also install the bumper bracket real object after disassembling the bumper simulation bracket and identify the matching state of the bumper bracket, thereby increasing the function of the inspection tool.

[0017] Furthermore, the asymmetric sub-skeleton model can be detachably provided with a mask lock connecting plate, and the two symmetrical sub-skeleton models are also fixedly provided with a door simulation block.

[0018] Furthermore, the base includes an upper base plate, a support frame and a lower base plate from top to bottom, and the lower base plate is provided with universal wheels and adjustable feet. The symmetrical sub-skeleton model and the asymmetrical sub-skeleton model are both bolted to the upper base plate.

[0019] Furthermore, the simulation block is made of resin material, and the symmetrical sub-skeleton model, the asymmetrical sub-skeleton model and the base are all made of aluminum alloy.

[0020] By using resin materials and aluminum alloys, the use of metal materials can be reduced and weight can be reduced.

[0021] Furthermore, the symmetrical sub-skeleton model, the asymmetrical sub-skeleton model and the support frame are all welded structures, and sufficient support strength is ensured by using the welded structure.

[0022] Furthermore, the two symmetrical sub-skeleton models and the asymmetrical sub-skeleton model are not connected to each other. By disconnecting the sub-skeleton models, the structure of the commercial vehicle skeleton model can be further simplified, and lightweight can be further achieved.

[0023] It can be seen from the above technical solutions that the utility model has the following advantages:

[0024] The utility model provides a front combined inspection fixture for a commercial vehicle. On the one hand, the appearance matching degree of corresponding parts of the front of the commercial vehicle is detected by using a combination of a model skeleton and a simulation block instead of a functional model, thereby reducing the manufacturing cost of the inspection fixture and solving the problem of metal resources, thereby realizing lightweight design. On the other hand, the utility model divides the front skeleton model of the commercial vehicle into symmetrical sub-parts, thereby simplifying the structural design of the skeleton model and improving the design and manufacturing efficiency of the inspection fixture. The simulation block can be accurately installed to avoid dislocation through a combination of positioning pins and bolt connections, thereby ensuring the accuracy of the matching degree detection of corresponding appearance covering parts. The simulation block can be quickly disassembled and assembled by setting a handle, thereby improving the installation efficiency. The bumper simulation bracket can be set so that the external skin of the bumper can be installed and the matching degree of the external skin can be detected. On the other hand, the bumper bracket can be installed after the bumper simulation bracket is disassembled, thereby identifying the matching state of the bumper bracket, thereby increasing the function of the inspection fixture. The use of metal materials can be reduced and lightweight can be realized by using resin materials and aluminum alloy materials. The commercial vehicle skeleton model structure can be further simplified by setting each sub-skeleton model in a non-connected manner, thereby improving the design and manufacturing efficiency and further reducing the manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a structural schematic diagram of a specific implementation method of the utility model.

[0027] Figure 2 It is a schematic diagram of the assembly structure of the simulation block and the mounting plate in a specific implementation manner of the utility model.

[0028] In the figure, 1. lower base plate; 2. upper base plate; 3. symmetrical sub-skeleton model; 4. connecting plate; 5. door simulation block; 6. simulation block; 7. bumper simulation bracket; 8. asymmetrical sub-skeleton model; 9. support frame; 10. universal wheel; 11. adjustment foot; 12. positioning pin; 13. connecting bolt; 14. handle. DETAILED DESCRIPTION

[0029] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0030] like Figure 1As shown, this specific embodiment provides a commercial vehicle front combined inspection fixture, including a base, including a base, on which a commercial vehicle skeleton model is arranged, the commercial vehicle skeleton model includes two symmetrical sub-skeleton models 3 and an asymmetrical sub-skeleton model 8, the symmetrical sub-skeleton models 3 have the same structure and are symmetrically arranged about the asymmetrical sub-skeleton model 8; the symmetrical sub-skeleton models 3 and the asymmetrical sub-skeleton models 8 are both detachably provided with simulation blocks 6, and the simulation blocks 6 are used to simulate the corresponding appearance covering parts of the front of the commercial vehicle; the symmetrical sub-skeleton models 3 and the asymmetrical sub-skeleton models 8 can also be detachably connected to the corresponding appearance covering parts of the front of the commercial vehicle. In this specific embodiment, the corresponding front part of the commercial vehicle has the structural characteristics of left-right symmetry and a single mask lock is arranged in the middle of the front mask. It can be seen that it is not a symmetrical structure in the strict sense. For this reason, in this specific embodiment, the commercial vehicle skeleton model includes two symmetrical sub-skeleton models 3 and an asymmetrical sub-skeleton model 8. The symmetrical sub-skeleton models 3 have the same structure and are symmetrically arranged about the asymmetrical sub-skeleton model 8. The asymmetrical sub-skeleton model 8 can also be detachably provided with a mask lock connecting plate; in this specific embodiment, multiple simulation blocks 6 correspond to headlights, bumpers, side trim panels, and front masks, respectively, and the two symmetrical sub-skeleton models 3 are also fixedly provided with door simulation blocks 5.

[0031] On the one hand, this specific implementation method uses a combination of a model skeleton and a simulation block 6 to replace a functional model to detect the appearance matching degree of corresponding parts of the front part of a commercial vehicle, thereby reducing the manufacturing cost of the inspection fixture and solving the problem of metal resources, thereby realizing a lightweight design. On the other hand, this specific implementation method divides the front skeleton model of the commercial vehicle into symmetrical sub-parts and asymmetrical parts according to the structure of the commercial vehicle, thereby simplifying the structural design of the skeleton model, reducing the difficulty of the skeleton model design, and improving the inspection fixture design and manufacturing efficiency, thereby providing a technical basis for the efficient customization of different types of commercial vehicle front inspection fixtures.

[0032] like Figure 1 and Figure 2 As shown, in order to facilitate the detachable connection with the simulation block 6 and the corresponding appearance covering parts of the front part of the vehicle, a plurality of connecting plates 4 are provided on the symmetrical sub-skeleton model 3 and the asymmetrical sub-skeleton model 8 through bolt connection, and a plurality of bolt holes and pin holes are provided on the connecting plate 4. The connecting plate 4 is detachably connected to the corresponding appearance covering parts of the front part of the commercial vehicle (in this specific embodiment, the headlights, bumpers, side trim panels, and front masks) through bolts, and the connecting plate 4 is detachably connected to the simulation block 6. Specifically, a mounting plate is provided on the simulation block 6, and a locating pin 12 and a connecting bolt 13 are vertically provided on the mounting plate. The locating pin 12 is clearance-matched with the pin hole on the connecting plate 4, and the connecting bolt 13 is bolted to the connecting plate 4. In order to realize the rapid disassembly and assembly of the simulation block 6, the connecting bolt 13 is connected with a handle 14, and the handle 14 is rotatably provided on the simulation block 6. By providing the handle 14, the simulation block 6 can be quickly disassembled and assembled, thereby improving the installation efficiency.

[0033] like Figure 1 As shown, the bumper assembly includes a bumper skin and a bumper bracket. In order to verify the matching state of the bumper assembly, the lower part of the symmetrical sub-skeleton model 3 and / or the asymmetrical sub-skeleton model 8 can also be detachably provided with a bumper simulation bracket 7. In this specific embodiment, the lower parts of the two symmetrical sub-skeleton models 3 can be detachably provided with a bumper simulation bracket 7. The connection method between the bumper simulation bracket 7 and the symmetrical sub-skeleton model 3 is the same as the connection method between the simulation block 6, which will not be repeated here. By setting the bumper simulation bracket 7, on the one hand, the outer skin of the bumper can be installed to detect the matching degree of the outer skin. On the other hand, the bumper simulation bracket 7 can be disassembled and the actual bumper bracket can be installed to identify the matching state of the bumper bracket, thereby increasing the function of the inspection fixture.

[0034] like Figure 1 As shown, in this specific embodiment, the base includes an upper base plate 2, a support frame 9 and a lower base plate 1 from top to bottom, and the lower base plate 1 is provided with a universal wheel 10 and an adjustable foot 11, the universal wheel 10 has a brake, and the symmetrical sub-skeleton model 3 and the asymmetrical sub-skeleton model 8 are both bolted to the upper base plate 2; at the same time, in order to ensure the supporting strength, the symmetrical sub-skeleton model 3, the asymmetrical sub-skeleton model 8 and the support frame 9 are all welded structures.

[0035] In order to save metal materials, the simulation block 6 is made of resin material. To further achieve lightweight, the symmetrical sub-skeleton model 3, the asymmetrical sub-skeleton model 8 and the base (i.e., the upper base plate 2, the support frame 9 and the lower base plate 1) are all made of aluminum alloy.

[0036] like Figure 1 As shown, in this specific embodiment, the two symmetrical sub-skeleton models 3 and the asymmetrical sub-skeleton model 8 are not connected to each other, which can further simplify the commercial vehicle skeleton model structure, improve design and manufacturing efficiency, and further reduce manufacturing costs.

[0037] It can be understood that when the front part of the commercial vehicle is a completely symmetrical structure, the commercial vehicle skeleton model only includes two symmetrically arranged symmetrical sub-skeleton models 3, but does not include the asymmetrical sub-skeleton model 8 in the middle.

[0038] From the above specific implementations, it can be seen that the utility model has the following beneficial effects:

[0039] 1. On the one hand, by using the combination of the model skeleton and the simulation block 6 instead of the functional model to detect the appearance matching degree of the corresponding parts of the front part of the commercial vehicle, the manufacturing cost of the inspection tool is reduced while solving the metal resources and realizing lightweight design. On the other hand, the utility model divides the front skeleton model of the commercial vehicle into symmetrical sub-parts, simplifies the structural design of the skeleton model, and improves the inspection tool design and manufacturing efficiency;

[0040] 2. The positioning pin 12 and the bolt connection combination can realize accurate installation of the simulation block 6 to avoid misalignment, thereby ensuring the accuracy of the matching degree detection of the corresponding appearance cover; the handle 14 can realize rapid disassembly and assembly of the simulation block 6, thereby improving the installation efficiency;

[0041] 3. By setting the bumper simulation bracket 7, on the one hand, the bumper outer skin can be installed to detect the matching degree of the outer skin. On the other hand, the bumper simulation bracket 7 can be disassembled and then the bumper bracket can be installed to identify the matching state of the bumper bracket, thereby increasing the function of the inspection tool;

[0042] 4. By using resin materials and aluminum alloy materials, the use of metal materials can be reduced and lightweight can be achieved;

[0043] 5. By setting each sub-skeleton model to be unconnected, the commercial vehicle skeleton model structure can be further simplified, the design and manufacturing efficiency can be improved, and the manufacturing cost can be further reduced.

[0044] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A commercial vehicle front combined inspection fixture, comprising a base, characterized in that: A commercial vehicle skeleton model is arranged on the base, the commercial vehicle skeleton model comprises two symmetrical sub-skeleton models (3), the symmetrical sub-skeleton models (3) have the same structure and are symmetrically arranged; Or, the commercial vehicle skeleton model includes two symmetrical sub-skeleton models (3) and one asymmetrical sub-skeleton model (8), wherein the symmetrical sub-skeleton models (3) have the same structure and are symmetrically arranged with respect to the asymmetrical sub-skeleton model (8); The symmetrical sub-skeleton model (3) and the asymmetrical sub-skeleton model (8) are both detachably provided with simulation blocks (6), and the simulation blocks (6) are used to simulate the corresponding appearance covering parts of the front part of the commercial vehicle; The symmetrical sub-frame model (3) and the asymmetrical sub-frame model (8) can also be detachably connected to the corresponding appearance cover of the front part of the commercial vehicle.

2. The front assembly inspection fixture for commercial vehicles according to claim 1, characterized in that: A plurality of connecting plates (4) are provided on both the symmetrical sub-skeleton model (3) and the asymmetrical sub-skeleton model (8); the connecting plates (4) are detachably connected to the simulation blocks (6); and the connecting plates (4) can also be detachably connected to corresponding appearance covering parts at the front of the commercial vehicle.

3. The front assembly inspection fixture for commercial vehicles according to claim 2, characterized in that: A mounting plate is arranged on the simulation block (6), and a positioning pin (12) and a connecting bolt (13) are vertically arranged on the mounting plate. The positioning pin (12) is clearance-matched with a pin hole on the connecting plate (4), and the connecting bolt (13) is bolt-connected with the connecting plate (4).

4. The front assembly inspection fixture for commercial vehicles according to claim 3, characterized in that: The connecting bolt (13) is connected to a handle (14), and the handle (14) is rotatably arranged on the simulation block (6).

5. The front assembly inspection fixture for commercial vehicles according to any one of claims 1 to 4, characterized in that: The commercial vehicle skeleton model comprises two symmetrical sub-skeleton models (3) and an asymmetrical sub-skeleton model (8), and a bumper simulation bracket (7) is detachably provided at the lower part of the symmetrical sub-skeleton model (3) and / or the asymmetrical sub-skeleton model (8).

6. The front assembly inspection fixture for commercial vehicles according to claim 5, characterized in that: The asymmetric sub-skeleton model (8) is also provided with a detachable mask lock connecting plate, and the two symmetrical sub-skeleton models (3) are also both fixedly provided with a door simulation block (5).

7. The front assembly inspection fixture for commercial vehicles according to claim 6, characterized in that: The base comprises, from top to bottom, an upper base plate (2), a support frame (9) and a lower base plate (1); the lower base plate (1) is provided with universal wheels (10) and adjustable feet (11); and the symmetrical sub-skeleton model (3) and the asymmetrical sub-skeleton model (8) are both connected to the upper base plate (2) by bolts.

8. The front assembly inspection fixture for commercial vehicles according to claim 7, characterized in that: The simulation block (6) is made of resin material, and the symmetrical sub-skeleton model (3), the asymmetrical sub-skeleton model (8) and the base are all made of aluminum alloy.

9. The front assembly inspection fixture for commercial vehicles according to claim 8, characterized in that: The symmetrical sub-skeleton model (3), the asymmetrical sub-skeleton model (8) and the support frame (9) are all welded structures.

10. The front assembly inspection fixture for commercial vehicles according to claim 5, characterized in that: The two symmetrical sub-skeleton models (3) and the asymmetrical sub-skeleton model (8) are not connected to each other.

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