Test clamp for front bumper assembly

Abstract

The utility model belongs to the technical field of automobile clamps, and particularly relates to a front bumper assembly test clamp, which comprises a base and two groups of clamping units symmetrically arranged on the base, comprising a first supporting frame arranged on a base, a first positioning assembly arranged on the front wall of the first supporting frame and a first simulation assembly arranged on the top wall of the first supporting frame, and the first simulation assembly comprises a headlamp simulation part and a fender simulation part; the second clamping mechanism is located on the front side of the first clamping mechanism, is closer to the middle and comprises a second supporting frame arranged on the base, a second positioning assembly arranged on the front wall of the second supporting frame and a second simulation assembly arranged on the top wall of the second supporting frame, and the second simulation assembly comprises an engine hood simulation part and a locking positioning part. According to the utility model, the front bumper assembly can be fixed and detected only by using one test fixture, so that the test cost is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automotive fixtures, and particularly relates to a test fixture for a front bumper assembly. Background Art

[0002] After the manufacture of the front bumper assembly of an automobile, performance tests such as heat-resistant deformation, heat-resistant cycling, heat-resistant deterioration, and impact resistance are often required, and after the test, the changes in the gaps, surface differences, etc. around the product and whether the product is qualified after the test are inspected. However, there are three problems in the detection of the front bumper assembly of an automobile: 1. The front bumper assembly is a plastic part and has a large size. When tested in an unfixed state, the product is extremely easy to deform; 2. The two ends and the upper side of the front bumper assembly are arc-shaped surfaces. The edges around the product are arc-shaped when using existing measuring instruments. It is very difficult to measure the contour dimensions with existing general measuring instruments (vernier calipers, steel straight rulers, micrometers), resulting in a long measurement time. The accidental error of the measurement results caused by inconsistent measurement positions of different personnel is relatively large, and the credibility is low, affecting the judgment of product quality; 3. Since the front bumper assembly is composed of multiple plastic parts, if each part is tested and each dimension is inspected one by one, the cost is relatively high. Summary of the Utility Model

[0003] In view of the above-mentioned deficiencies of the prior art, the purpose of the present utility model is to provide a test fixture for a front bumper assembly, which is used to solve the technical problem that it is difficult to fix the front bumper assembly in the prior art, resulting in great difficulty in detection.

[0004] To achieve the above purpose and other related purposes, the technical solution of the present utility model is as follows:

[0005] A test fixture for a front bumper assembly includes: a base and two sets of clamping units symmetrically arranged on the base. Each set of clamping units includes:

[0006] A first clamping mechanism, including a first support frame arranged on the base, a first positioning component arranged on the front wall of the first support frame, and a first simulation component arranged on the top wall of the first support frame. The first simulation component includes a headlight simulation part and a fender simulation part;

[0007] A second clamping mechanism, located in front of the first clamping mechanism and closer to the middle, includes a second support frame arranged on the base, a second positioning component arranged on the front wall of the second support frame, and a second simulation component arranged on the top wall of the second support frame. The second simulation component includes a hood simulation part and a locking and positioning part.

[0008] Optionally, the first simulation component further includes a first top wall mounting plate disposed on the top wall of the first support frame, and both the headlight simulation component and the fender simulation component are disposed on the first top wall mounting plate; the second simulation component further includes a second top wall mounting plate disposed on the top wall of the second support frame, and both the engine hood simulation component and the locking and positioning component are disposed on the second top wall mounting plate.

[0009] Optionally, the first support frame includes a first positioning plate, a first support column, and a first connecting plate. The two first positioning plates are symmetrically disposed on the base, the two first support columns are symmetrically disposed on the first positioning plates, and the two first connecting plates are both connected between the two first support columns.

[0010] Optionally, the first positioning component includes a first side wall mounting plate, a first plug socket, a first locking member, and a first positioning pin. The two first side wall mounting plates are respectively disposed on the front walls of the two first support columns, the two first plug sockets are respectively disposed on the two first side wall mounting plates, and the first locking member and the first positioning pin are respectively disposed on the two first plug sockets.

[0011] Optionally, the headlight simulation component includes a headlight connecting frame, a headlight simulation block, a headlight plug socket, and a headlight positioning pin. The headlight connecting frame is disposed on the first top wall mounting plate, the headlight simulation block is disposed on the headlight connecting frame, the headlight plug socket is disposed on the headlight simulation block, and the headlight positioning pin is disposed on the headlight plug socket.

[0012] Optionally, the fender simulation component includes a fender connecting frame, a fender simulation block, a fender positioning pin, a bracket mounting plate, a clip mechanism, and a clip locking pin. The fender connecting frame is disposed on the first top wall mounting plate, the fender simulation block, the bracket mounting plate, and the clip mechanism are all disposed on the fender connecting frame, the fender positioning pin is disposed on the fender simulation block, and the clip locking pin is connected to the clip mechanism.

[0013] Optionally, the second support frame includes a second positioning plate, a second support column, and a second connecting plate. The two second positioning plates are symmetrically disposed on the base, the two second support columns are symmetrically disposed on the second positioning plates, and the two second connecting plates are both connected between the two second support columns.

[0014] Optionally, the second positioning component includes a second side wall mounting plate, a second plug socket, and a second locking member. The second side wall mounting plate is disposed on the front wall of one of the second support columns, the second plug socket is disposed on the second side wall mounting plate, and the second locking member is disposed on the second plug socket.

[0015] Optionally, the hood simulation component includes a flipping positioning frame, a flipping support column, a flipping guide frame, a flipping connecting frame, and a hood simulation block. The flipping positioning frame is disposed on the second top wall mounting plate. The flipping support column is disposed on the flipping positioning frame. The flipping guide frame is disposed on the flipping support column. The flipping connecting frame is rotatably disposed on the flipping guide frame. The hood simulation block is disposed on the flipping connecting frame.

[0016] Optionally, the locking and positioning component includes two vertical pin seats and two horizontal pin seats disposed on the second top wall mounting plate, and the vertical pin seats and the horizontal pin seats are arranged alternately. A vertical positioning pin is disposed on the vertical pin seat, and a horizontal locking member is disposed on the horizontal pin seat.

[0017] As described above, the front bumper assembly test fixture of the present utility model has the following beneficial effects:

[0018] By providing two sets of clamping units, each clamping unit includes a first clamping mechanism and a second clamping mechanism. The two sets of clamping units cooperate to clamp and test the front bumper assembly. Only one set of test fixtures needs to be invested to fix the front bumper assembly and complete the performance test, and the dimensional inspection before and after the test can be completed, saving the test cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the overall structure of the front bumper assembly test fixture according to an embodiment of the present utility model Figure 1 ;

[0020] Figure 2 Schematic diagram of the overall structure of the front bumper assembly test fixture according to an embodiment of the present utility model Figure 2 ;

[0021] Figure 3 Schematic diagram of the first clamping mechanism according to an embodiment of the present utility model;

[0022] Figure 4 Schematic diagram of the second clamping mechanism according to an embodiment of the present utility model;

[0023] Figure 5 Schematic diagram of the application state of the front bumper assembly test fixture according to an embodiment of the present utility model.

[0024] DESCRIPTION OF THE REFERENCE NUMERALS

[0025] 100 - clamping unit; 200 - base;

[0026] 300 - front bumper assembly; 301 - inner grille; 302 - radiator grille; 303 - radiator grille;

[0027] 10 - First clamping mechanism;

[0028] 11 - First support frame; 111 - First positioning plate; 112 - First support column; 113 - First connecting plate;

[0029] 12 - First positioning component; 121 - First side wall mounting plate; 122 - First pin seat; 123 - First locking member; 124 - First positioning pin;

[0030] 13 - Headlight simulation component; 131 - Headlight connecting frame; 132 - Headlight simulation block; 133 - Headlight pin seat; 134 - Headlight positioning pin;

[0031] 14 - Fender simulation component; 141 - Fender connecting frame; 142 - Fender simulation block; 143 - Fender positioning pin; 144 - Bracket mounting plate; 145 - Clamping mechanism; 146 - Clamping locking pin;

[0032] 15 - First top wall mounting plate;

[0033] 20 - Second clamping mechanism;

[0034] 21 - Second support frame; 211 - Second positioning plate; 212 - Second support column; 213 - Second connecting plate;

[0035] 22 - Second positioning component; 221 - Second side wall mounting plate; 222 - Second pin seat; 223 - Second locking member;

[0036] 23 - Hood simulation component; 231 - Flip positioning frame; 232 - Flip support column; 233 - Flip guide frame; 234 - Flip connecting frame; 235 - Hood simulation block;

[0037] 24 - Locking and positioning component; 241 - Vertical positioning pin; 242 - Vertical pin seat; 243 - Horizontal pin seat; 244 - Horizontal locking member;

[0038] 25 - Second top wall mounting plate. Detailed implementation manners

[0039] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model.

[0040] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the conditions for the implementation of the present utility model. Therefore, they do not have substantial technical significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear description and are not used to limit the scope for the implementation of the present utility model. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present utility model can be implemented.

[0041] In order to be able to describe the present utility model in detail, the following specifically describes the test fixture for the front bumper assembly of the present utility model:

[0042] Please refer to Figures 1 to 4 As shown, the present utility model provides a test fixture for a front bumper assembly, including: a base 200 and two sets of clamping units 100 symmetrically arranged on the base 200. Each set of the clamping units 100 includes a first clamping mechanism 10 and a second clamping mechanism 20. Among them, the first clamping mechanism 10 includes a first support frame 11 arranged on the base 200, a first positioning component 12 arranged on the front wall of the first support frame 11, and a first simulation component arranged on the top wall of the first support frame 11. The first simulation component includes a headlight simulation part 13 and a fender simulation part 14; the second clamping mechanism 20 is located on the front side of the first clamping mechanism 10 and closer to the middle, and includes a second support frame 21 arranged on the base 200, a second positioning component 22 arranged on the front wall of the second support frame 21, and a second simulation component arranged on the top wall of the second support frame 21. The second simulation component includes an engine hood simulation part 23 and a locking and positioning part 24.

[0043] Specifically, since the front bumper assembly 300 is a left-right symmetric part, two sets of symmetric clamping units 100 are provided. The first clamping mechanism 10 in the right clamping unit 100 is symmetric to the first clamping mechanism 10 in the left clamping unit 100, and the second clamping mechanism 20 in the right clamping unit 100 is symmetric to the second clamping mechanism 20 in the left clamping unit 100. The left and right sides of the front bumper assembly 300 are respectively fixed and supported by the two sets of clamping units 100. Through the cooperation of the first clamping mechanism 10 and the second clamping mechanism 20, the front bumper assembly 300 is fixed, and the clamping and testing of the front bumper assembly 300 are realized. Only by investing 1 set of test fixtures can the front bumper assembly 300 be fixed, the performance test be completed, and the dimensional inspection before and after the test be completed, saving the test cost.

[0044] Refer to Figure 3 and Figure 4 , in some embodiments, the first simulation component further includes a first top wall mounting plate 15 disposed on the top wall of the first support frame 11. The front headlight simulation component 13 and the fender simulation component 14 are both disposed on the first top wall mounting plate 15. The second simulation component further includes a second top wall mounting plate 25 disposed on the top wall of the second support frame 21. The hood simulation component 23 and the locking and positioning component 24 are both disposed on the second top wall mounting plate 25. Specifically, the front headlight simulation component 13 and the fender simulation component 14 are fixed on the first top wall mounting plate 15, and the first top wall mounting plate 15 is fixed on the top wall of the first support frame 11 by bolts. The hood simulation component 23 and the locking and positioning component 24 are fixed on the second top wall mounting plate 25, and the second top wall mounting plate 25 is fixed on the top wall of the second support frame 21 by bolts.

[0045] Refer to Figure 3 , in some embodiments, the first support frame 11 includes a first positioning plate 111, a first support column 112, and a first connecting plate 113. The two first positioning plates 111 are symmetrically disposed on the base 200. The two first support columns 112 are symmetrically disposed on the first positioning plates 111. The two first connecting plates 113 are both connected between the two first support columns 112. Specifically, the first positioning plate 111 is in a rectangular ring shape and is mounted on the base 200 by bolts for positioning the first support column 112. The first support column 112 is located within the first positioning plate 111 and is fixed on the base 200 by bolts, and the two first support columns 112 are connected by two first connections

[0046] Continue to refer to Figure 3, in the above embodiment, the first positioning component 12 includes a first side wall mounting plate 121, a first pin seat 122, a first locking member 123, and a first positioning pin 124. The two first side wall mounting plates 121 are respectively disposed on the front walls of the two first support columns 112. The two first pin seats 122 are respectively disposed on the two first side wall mounting plates 121. The first locking member 123 and the first positioning pin 124 are respectively disposed on the two first pin seats 122. Specifically, the two first side wall mounting plates 121 are respectively fixed on the two first support columns 112 by bolts. The two first pin seats 122 are respectively fixed on the corresponding two first side wall mounting plates 121 by bolts. The first pin seat 122 is L-shaped, and the two first pin seats 122 are perpendicular to each other. The first locking member 123 and the first positioning pin 124 are respectively installed on the threaded holes of a first pin seat 122, and the first locking member 123 is located inside the first positioning pin 124. The bottom of the front bumper assembly 300 can be fixed on the test fixture by the first locking member 123 and the first positioning pin 124. Among them, the first locking member 123 can be a locking bolt.

[0047] Referring to Figure 3 , in the above embodiment, the front headlight simulation component 13 includes a front headlight connecting frame 131, a front headlight simulation block 132, a front headlight pin seat 133, and a front headlight positioning pin 134. The front headlight connecting frame 131 is disposed on the first top wall mounting plate 15. The front headlight simulation block 132 is disposed on the front headlight connecting frame 131. The front headlight pin seat 133 is disposed on the front headlight simulation block 132. The front headlight positioning pin 134 is disposed on the front headlight pin seat 133. Specifically, the front headlight connecting frame 131 is fixed on the first top wall mounting plate 15 by bolts. The front headlight simulation block 132 is fixed on the front headlight connecting frame 131 by bolts, and is used to detect the changes in the gap and surface difference at the mating parts between the two ends of the front bumper assembly 300 and the front headlights before and after the test.

[0048] Continue to refer to Figure 3, in the above embodiment, the fender simulation component 14 includes a fender connecting frame 141, a fender simulation block 142, a fender positioning pin 143, a bracket mounting plate 144, a clip mechanism 145, and a clip locking pin 146. The fender connecting frame 141 is disposed on the first top wall mounting plate 15. The fender simulation block 142, the bracket mounting plate 144, and the clip mechanism 145 are all disposed on the fender connecting frame 141. The fender positioning pin 143 is disposed on the fender simulation block 142. The clip locking pin 146 is connected to the clip mechanism 145. Specifically, the fender connecting frame 141 is fixed to the first top wall mounting plate 15 by bolts. The fender simulation block 142 is fixed to the fender connecting frame 141 by bolts and is used to check the changes in the gap and surface difference at the mating part between the front bumper assembly 300 and the fender before and after the test. The fender positioning pin 143 is installed in the threaded hole of the fender simulation block 142 and can adjust the surface difference between the front bumper assembly 300 and the fender simulation block 142 before the test. The bracket mounting plate 144 and the clip mechanism 145 are both fixed to the fender connecting frame 141 by bolts. The clip locking pin 146 can control the opening and closing of the clip mechanism 145. The bracket mounting plate 144 and the clip mechanism 145 cooperate with each other to fix the bracket of the front bumper assembly 300 (before the front bumper assembly 300 is installed in the test fixture, the left and right brackets of the front bumper assembly 300 need to be installed first, and then the two ends of the front bumper assembly 300 are hung on the left and right brackets of the front bumper assembly 300).

[0049] Refer to Figure 4 , in some embodiments, the second support frame 21 includes a second positioning plate 211, a second support column 212, and a second connecting plate 213. The two second positioning plates 211 are symmetrically disposed on the base 200. The two second support columns 212 are symmetrically disposed on the second positioning plates 211. The two second connecting plates 213 are both connected between the two second support columns 212. Specifically, the second positioning plate 211 is in a rectangular ring shape and is installed on the base 200 by bolts for positioning the second support column 212. The second support column 212 is located inside the first positioning plate 111 and is fixed to the base 200 by bolts. The two second support columns 212 are connected by two second connecting plates 213 to increase the overall strength.

[0050] Continue to refer to Figure 4, in the above embodiment, the second positioning component 22 includes a second side wall mounting plate 221, a second pin seat 222 and a second locking member 223. The second side wall mounting plate 221 is disposed on the front wall of one of the second support columns 212. The second pin seat 222 is disposed on the second side wall mounting plate 221, and the second locking member 223 is disposed on the second pin seat 222. Specifically, the second side wall mounting plate 221 is fixed to a second support column 212 by bolts. The second pin seat 222 is fixed to the second side wall mounting plate 221 by bolts, and the second pin seat 222 is L-shaped. The second locking member 223 is disposed in the threaded hole of the second pin seat 222 for fixing the bottom of the front bumper assembly 300. Among them, the second locking member 223 can adopt a locking bolt.

[0051] Refer to Figure 4 , in the above embodiment, the locking and positioning member 24 includes two vertical pin seats 242 and two horizontal pin seats 243 disposed on the second top wall mounting plate 25, and the vertical pin seats 242 and the horizontal pin seats 243 are arranged in an alternating manner. A vertical positioning pin 241 is disposed on the vertical pin seat 242, and a horizontal locking member 244 is disposed on the horizontal pin seat 243. Specifically, the two vertical pin seats 242 and the two horizontal pin seats 243 are both fixed to the second top wall mounting plate 25 by bolts. The two horizontal locking members 244 are respectively disposed in the threaded holes of the two horizontal pin seats 243 for fixing the inner grille 301 of the front bumper assembly 300. Among them, the horizontal locking member 244 can adopt a locking bolt; the two vertical positioning pins 241 are respectively disposed in the threaded holes of the two vertical pin seats 242 for fixing the radiator grille 303 of the front bumper assembly 300; Step 7, flip the flipping mechanism in place and lock it. After the installation is completed, the gap gauge and the flushness gauge can be used to detect the gap and flushness between the fender simulation block 142, the headlight simulation block 132, the hood simulation block 235 and the product; then perform performance tests such as heat resistance deformation, heat resistance cycle or heat resistance deterioration. After the test is completed, check whether the product is deformed, and check the data again, compare the change amount before and after the test, and judge the test result of the product;

[0052] Continue to refer to Figure 4, in the above embodiment, the hood simulation component 23 includes a flipping positioning frame 231, a flipping support column 232, a flipping guide frame 233, a flipping connection frame 234, and a hood simulation block 235. The flipping positioning frame 231 is arranged on the second top wall mounting plate 25, the flipping support column 232 is arranged on the flipping positioning frame 231, the flipping guide frame 233 is arranged on the flipping support column 232, the flipping connection frame 234 is rotatably arranged on the flipping guide frame 233, and the hood simulation block 235 is arranged on the flipping connection frame 234. Specifically, the flipping positioning frame 231 is in a rectangular ring shape and is installed on the second top wall mounting plate 25 by bolts for positioning the flipping support column 232; the flipping support column 232 is located inside the flipping positioning frame 231 and is fixed on the second top wall mounting plate 25 by bolts; the flipping guide frame 233 is fixed on the top of the flipping support column 232 by bolts, and the rear side of the flipping guide frame 233 is connected to the flipping connection frame 234 through a rotating shaft, so that the flipping connection frame 234 can rotate at a certain angle around the rotating shaft; the hood simulation block 235 is connected to the flipping connection frame 234 by bolts and is used to test the changes in the clearance and surface difference at the matching part between the radiator grille 303 and the hood before and after the test.

[0053] Refer to Figure 5, when the front bumper assembly test fixture is specifically used: First step, flip and open the hood simulation component 23; Second step, remove all the locking bolts and positioning pins; Third step, install the left and right brackets of the front bumper assembly 300 on the first clamping mechanism 10 on the left and the first clamping mechanism 10 on the right respectively. When installing, align the mounting holes of the left and right brackets of the bumper assembly 300 and the clamps of the clamp mechanism 145, and use the clamp locking pin 146 to lock the clamps to ensure that the left and right brackets of the front bumper assembly 300 are installed in place; Fourth step, fasten the two ends of the front bumper assembly 300 to the corresponding bracket mounting plates 144 in place, fasten the bottom of the front bumper assembly 300 to the first pin seat 122 and the second pin seat 222 in place, and fasten the inner grille 301 to the horizontal pin seat 243 in place; Fifth step, lock the first locking piece 123, the first positioning pin 124 and the second locking piece 223 at the bottom of the front bumper assembly 300, lock the two horizontal locking pieces 244 on the inner grille 301, and lock the headlight positioning pin 134 and the fender positioning pin 143 for adjusting the surface difference at both ends of the front bumper assembly 300. After this step of installation, install the upper-side product; Sixth step, insert the clamping corners on the lower side of the radiator grille 302 into the mounting holes of the inner grille 301, then use plug nails to assemble the front mounting holes of the radiator grille 303 and the upper mounting holes of the inner grille 301, and finally fix the rear mounting holes of the radiator grille 303 on the test fixture with the vertical positioning pin 241; Seventh step, flip the hood simulation component 23 in place and lock it. After the installation is completed, the gap and surface difference between the fender simulation block 142, the headlight simulation block 132, the hood simulation block 235 and the product can be detected with a gap gauge and a surface difference gauge; Then conduct performance tests such as heat-resistant deformation, heat-resistant cycling or heat-resistant deterioration. After the test is completed, it can be checked whether the product is deformed, and the data can be checked again to compare the change amount before and after the test, and judge the test result of the product; Eighth step, the product removal needs to be operated in the reverse steps of installation. After the product is removed, reset all the locking bolts and positioning pins and wait for the next use; Ninth step: Reset the inspection fixture and wait for the next use.

[0054] In summary, for the front bumper assembly test fixture provided by the present utility model, by setting two sets of clamping units 100, each set of clamping unit 100 includes a first clamping mechanism 10 and a second clamping mechanism 20. The two sets of clamping units 100 cooperate to realize the clamping and testing of the front bumper assembly 300. Only one set of test fixtures needs to be invested to fix the front bumper assembly 300, complete the performance test, and can complete the dimensional inspection before and after the test, saving the test cost.

[0055] The above embodiments are only illustrative of the principles and effects of the present utility model, and are not intended to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. A front bumper assembly test fixture, characterized in that: include: A base and two groups of clamping units symmetrically arranged on the base, each group of the clamping units comprising: A first clamping mechanism includes a first support frame arranged on the base, a first positioning assembly arranged on the front wall of the first support frame, and a first simulation assembly arranged on the top wall of the first support frame, wherein the first simulation assembly includes a headlight simulation component and a fender simulation component; The second clamping mechanism is located on the front side of the first clamping mechanism and closer to the middle, and includes a second support frame arranged on the base, a second positioning component arranged on the front wall of the second support frame, and a second simulation component arranged on the top wall of the second support frame, and the second simulation component includes a hood simulation component and a locking positioning component.

2. The front bumper assembly test fixture according to claim 1, characterized in that: The first simulation component also includes a first top wall mounting plate arranged on the top wall of the first support frame, and the headlight simulation component and the fender simulation component are both arranged on the first top wall mounting plate; the second simulation component also includes a second top wall mounting plate arranged on the top wall of the second support frame, and the hood simulation component and the locking and positioning component are both arranged on the second top wall mounting plate.

3. The front bumper assembly test fixture according to claim 1, characterized in that: The first support frame includes a first positioning plate, a first support column and a first connecting plate, two first positioning plates are symmetrically arranged on the base, two first support columns are symmetrically arranged on the first positioning plate, and two first connecting plates are connected between the two first support columns.

4. The front bumper assembly test fixture according to claim 3, characterized in that: The first positioning assembly includes a first side wall mounting plate, a first latch seat, a first locking piece and a first positioning pin, the two first side wall mounting plates are respectively arranged on the front walls of the two first support columns, the two first latch seats are respectively arranged on the two first side wall mounting plates, and the first locking piece and the first positioning pin are respectively arranged on the two first latch seats.

5. The front bumper assembly test fixture according to claim 2, characterized in that: The headlight simulation component includes a headlight connecting frame, a headlight simulation block, a headlight latch seat and a headlight locating pin. The headlight connecting frame is arranged on the first top wall mounting plate, the headlight simulation block is arranged on the headlight connecting frame, the headlight latch seat is arranged on the headlight simulation block, and the headlight locating pin is arranged on the headlight latch seat.

6. The front bumper assembly test fixture according to claim 2, characterized in that: The fender simulation component includes a fender connecting frame, a fender simulation block, a fender positioning pin, a bracket mounting plate, a clip mechanism and a clip locking pin. The fender connecting frame is arranged on the first top wall mounting plate, the fender simulation block, the bracket mounting plate and the clip mechanism are all arranged on the fender connecting frame, the fender positioning pin is arranged on the fender simulation block, and the clip locking pin is connected to the clip mechanism.

7. The front bumper assembly test fixture according to claim 1, characterized in that: The second support frame includes a second positioning plate, a second support column and a second connecting plate, two second positioning plates are symmetrically arranged on the base, two second support columns are symmetrically arranged on the second positioning plate, and two second connecting plates are connected between the two second support columns.

8. The front bumper assembly test fixture according to claim 7, characterized in that: The second positioning assembly includes a second side wall mounting plate, a second latch seat and a second locking member, the second side wall mounting plate is arranged on the front wall of one of the second support columns, the second latch seat is arranged on the second side wall mounting plate, and the second locking member is arranged on the second latch seat.

9. The front bumper assembly test fixture according to claim 2, characterized in that: The hood simulation component includes a flip positioning frame, a flip support column, a flip guide frame, a flip connecting frame and a hood simulation block. The flip positioning frame is arranged on the second top wall mounting plate, the flip support column is arranged on the flip positioning frame, the flip guide frame is arranged on the flip support column, the flip connecting frame is rotatably arranged on the flip guide frame, and the hood simulation block is arranged on the flip connecting frame.

10. The front bumper assembly test fixture according to claim 2, characterized in that: The locking and positioning component includes two vertical latch seats and two horizontal latch seats arranged on the second top wall mounting plate, and the vertical latch seats are arranged alternately with the horizontal latch seats, the vertical latch seats are provided with vertical positioning pins, and the horizontal latch seats are provided with horizontal locking pieces.

Images