An automobile engine hood assembly fixture

Abstract

The utility model relates to the technical field of automobile assembly production discloses an automobile engine cover assembly fixture, including platform base, install locking device, positioning device and support device on the platform base, the locking device includes the first locking mechanism and the second locking mechanism of paired setting, the positioning device includes the first positioning mechanism and the second positioning mechanism of paired setting, the support device includes the first support mechanism, the second support mechanism and the third support mechanism of paired setting, the utility model promotes the assembly accuracy through multiple positioning mechanisms, realizes accurate positioning and reliable clamping of engine cover on the assembly station, satisfies the increasingly strict production requirement of market.

Description

Technical Field

[0001] This utility model relates to the field of automobile assembly production technology, and in particular to an automobile engine cover assembly fixture. Background Technology

[0002] The hood is a protective shell covering the engine and an important component of a car. Its main functions are: to guide airflow, allowing air to flow more smoothly over the vehicle body, reducing the drag coefficient, improving fuel economy and driving stability; to protect the engine and surrounding pipelines and components inside the front engine compartment from direct intrusion of foreign objects, dust, rainwater, etc.; to assist the driver's vision by adjusting the direction of reflected light to reduce the interference of direct sunlight on the driver's vision; and in the event of a collision, to absorb some of the impact energy through its own deformation, reducing damage to critical components such as the engine, reducing the risk of the engine shifting or ejecting during a collision, and reducing injury to passengers.

[0003] Traditional engine hood assembly fixtures have the following drawbacks: First, they rely solely on a two-dimensional positioning method using "measuring blocks + front and rear limit pins," resulting in excessive surface differences between the engine hood and the body fenders and bumpers, leading to poor positioning accuracy. Second, manual fixtures rely on the operator's experience to control the clamping force; excessive force can easily cause deformation of the reinforcing ribs of the inner panel of the engine hood and damage to the paint surface of the outer panel, while insufficient force can cause the engine hood to loosen and shift during assembly, resulting in positioning failure. Utility Model Content

[0004] The main technical problem to be solved by this utility model is to provide an automotive engine hood assembly fixture, which improves the assembly accuracy through a multi-positioning mechanism, realizes the precise positioning and reliable clamping of the engine hood at the assembly station, and meets the increasingly stringent production requirements of the market.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: An automotive engine hood assembly fixture includes a platform base on which a locking device, a positioning device, and a support device are mounted. The platform base includes a base plate, a pneumatic control box is fixedly connected to the middle of the base plate, and a lifting device and a button box are fixedly connected to both ends of the base plate; The locking device includes two first locking mechanisms and two second locking mechanisms, which are symmetrically distributed relative to the pneumatic control box and are all fixed to the base plate. The positioning device includes two first positioning mechanisms and two second positioning mechanisms, which are symmetrically distributed relative to the pneumatic control box and are all fixed to the base plate. The support device includes two first support mechanisms, two second support mechanisms, and two third support mechanisms. The two first support mechanisms, two second support mechanisms, and two third support mechanisms are symmetrically distributed relative to the pneumatic control box and are all fixed to the base plate.

[0006] The following are further optimizations of the above technical solution by this utility model: The first locking mechanism includes a vertically arranged first cylinder, a first positioning block and a first pressing block arranged vertically opposite each other. The top of the first positioning block is fixedly connected to one end of the first cylinder through a first connecting block, and the first connecting block is fixedly connected to the base plate through a first support block. The bottom of the first pressing block is fixedly connected to the other end of the first cylinder.

[0007] Further optimization: The second locking mechanism includes a vertically arranged second cylinder, and a vertically arranged second positioning block and a second pressing block. The second positioning block is fixedly connected to one end of the second cylinder through a second connecting block, and the second connecting block is fixedly connected to the base plate through a second support block. The bottom of the second pressing block is fixedly connected to the other end of the second cylinder.

[0008] Further optimization: The first positioning mechanism includes a first positioning pin that is inclined, the lower end of the first positioning pin is fixedly connected to a first support base through a third connecting block, and the lower end of the first support base is fixedly connected to the base plate.

[0009] Further optimization: The second positioning mechanism includes a vertically arranged second positioning pin, the upper end of which is fixedly connected to a second support base via a fourth connecting block, and the upper end of the second support base is fixedly attached to the base plate.

[0010] Further optimization: The first support mechanism includes a third support block arranged in an L-shape, with the short side of the third support block inclined upwards and its long side positioned below the short side. The long side of the third support block is fixed to the base plate via a third support base.

[0011] Further optimization: The second support mechanism includes a fourth support block arranged in an L-shape. The long side of the fourth support block is arranged vertically, and its short side is arranged below its long side. The short side of the fourth support block is fixed to the base plate through a fourth support base.

[0012] Further optimization: The third support mechanism includes a fifth support block arranged in an L-shape. The long side of the fifth support block is arranged vertically, and the top of the long side is inclined. The short side of the fifth support block is arranged below its long side and is fixed to the base plate by the fifth support base.

[0013] Further optimization: The base plate includes a first fixed plate, a second fixed plate, a third fixed plate, and a fourth fixed plate arranged in pairs.

[0014] Further optimization: The first locking mechanism is fixed to the base plate through the first fixing plate, the second locking mechanism is fixed to the base plate through the second fixing plate, the third support mechanism is fixed to the base plate through the third fixing plate, and the first positioning mechanism, the second positioning mechanism, the first support mechanism and the second support mechanism are jointly fixed to the base plate through the fourth fixing plate.

[0015] The present invention adopts the above technical solution and has the following beneficial effects: 1. The present invention adopts the above-mentioned technical solution, which is ingenious in conception and reasonable in structure. Through multiple positioning and locking mechanisms, the assembly accuracy of the parts on the engine cover is improved, thereby meeting the increasingly strict production requirements of the market. Moreover, the multiple positioning, locking and supporting mechanisms are reasonably arranged on the platform base, which reduces the danger caused by improper operation and thus improves the safety of assembly work.

[0016] 1. By combining the first and second locking mechanisms, a symmetrical clamping and fixing effect can be formed on both sides of the vehicle body, realizing the synchronous locking of both sides of the vehicle body. This not only ensures the uniformity of force on both sides of the vehicle body and avoids local deformation or positioning deviation caused by excessive force on one side, but also counteracts the disturbance caused by external force intervention during assembly operations, ensuring that the vehicle body is always in the preset assembly posture.

[0017] Therefore, the dual-mechanism, dual-side synchronous locking structure design significantly enhances the positioning stability of the vehicle body, greatly reduces assembly errors caused by positioning failure, and thus improves the reliability and practicality of the overall positioning scheme.

[0018] 3. The position of the first positioning mechanism is precisely calculated and perfectly matched with the position of the positioning hole on the inner panel of the engine hood. It can be quickly embedded into the positioning hole through the rigid positioning structure to achieve precise positioning of the inner panel of the engine hood. The second positioning mechanism is positioned according to the reference coordinates of the positioning hole of the body fender. Its positioning size has a high degree of matching with the diameter and height of the positioning hole of the fender, which can effectively constrain the spatial attitude of the fender.

[0019] The positional design of the first and second positioning mechanisms mentioned above can ensure the consistency of the assembly reference between the engine inner cover and the fender from the source, avoiding the problem of component assembly interference caused by positioning deviation. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model; Figure 2 This is a schematic diagram of the platform base in an embodiment of the present utility model; Figure 3 This is a schematic diagram of the structure of the first locking mechanism in an embodiment of the present utility model; Figure 4 This is a schematic diagram of the structure of the second locking mechanism in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the first positioning mechanism in an embodiment of this utility model; Figure 6 This is a schematic diagram of the structure of the second positioning mechanism in an embodiment of this utility model; Figure 7 This is a schematic diagram of the structure of the first support mechanism in an embodiment of this utility model; Figure 8 This is a schematic diagram of the structure of the second support mechanism in an embodiment of this utility model; Figure 9 This is a schematic diagram of the third support mechanism in an embodiment of the present utility model.

[0022] The components include: 1. Platform base; 101. Base plate; 102. Pneumatic control box; 103. Lifting device; 104. Button box; 105. First fixing plate; 106. Second fixing plate; 107. Third fixing plate; 108. Fourth fixing plate; 2. First locking mechanism; 201. First cylinder; 202. First positioning block; 203. First pressing block; 204. First connecting block; 205. First support block; 3. Second locking mechanism; 301. Second cylinder; 302. Second positioning block; 303. Second pressing block; 304. Second connecting block; 305. Second support block; 4. First positioning mechanism; 401. First positioning pin; 402. Third connecting block; 403. First support base; 5. Second positioning mechanism; 501. Second positioning pin; 502. Fourth connecting block; 503. Second support base; 6. First support mechanism; 601. Third support block; 602. Third support base; 7. Second support mechanism; 701. Fourth support block; 702. Fourth support base; 8. Third support mechanism; 801. Fifth support block; 802. Fifth support base. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1 like Figures 1-9 As shown in the figure, an automobile engine hood assembly fixture includes a platform base 1, on which a locking device, a positioning device and a support device are installed.

[0025] In this embodiment, the reasonable arrangement of the locking device, positioning device and supporting device on the platform base 1 reduces the danger caused by improper operation during the assembly process and improves the safety of the present invention.

[0026] like Figure 1 and Figure 2 As shown, the platform base 1 includes a base plate 101, and a pneumatic control box 102 is fixedly connected to the middle of the base plate 101.

[0027] In this embodiment, the pneumatic control box 102 can be a commercially available PLC-controlled pneumatic control box. Its working principle, structural composition and connection method are all existing mature technologies and are well known to those skilled in the art, so they will not be described in detail here.

[0028] The core function of the pneumatic control box 102 is to drive and control the start, stop and action execution of the first locking mechanism 2 and the second locking mechanism 3.

[0029] Preferably, both ends of the base plate 101 are fixedly connected to the lifting device 103 and the button box 104.

[0030] In this embodiment, each lifting device 103 consists of a lifting ring and two lifting chains movably mounted on the lifting ring. The lower end of each lifting chain is movably connected to a mounting base, which is fixedly connected to the base plate 101 by fasteners.

[0031] In this embodiment, the button box 104 is used for the installation and integration of the assembly fixture core control unit.

[0032] like Figure 1 , Figure 3 and Figure 4 As shown, the locking device includes two first locking mechanisms 2 and two second locking mechanisms 3.

[0033] In this embodiment, the first locking mechanism 2 is positioned to match the position of the body water channel at the assembly station, thereby enabling reliable clamping and positioning of the water channel.

[0034] Furthermore, the second locking mechanism 4 is positioned to match the position of the upper crossbeam of the headlight at the assembly station, thus providing a stable and reliable clamping and fixing effect on the upper crossbeam of the headlight.

[0035] The two first locking mechanisms 2 and the two second locking mechanisms 3 are symmetrically distributed relative to the pneumatic control box 102, and are all fixed to the base plate 101.

[0036] In this embodiment, the two first locking mechanisms 2 are arranged on the same side of the base plate 101 and are symmetrically distributed with the pneumatic control box 102 as the center of symmetry; similarly, the two second locking mechanisms 3 are arranged on the other side of the base plate 101 and are also symmetrically distributed with the pneumatic control box 102 as the center of symmetry.

[0037] In this embodiment, the coordinated arrangement of the first locking mechanism 2 and the second locking mechanism 3 acts on the target positioning parts on both sides of the vehicle body, and by applying a balanced and stable clamping force to both sides of the vehicle body, the overall vehicle body is firmly fixed.

[0038] Compared to designs with single-sided positioning or a single locking structure, this utility model effectively restricts the horizontal displacement and vertical rotation of the vehicle body during assembly operations through the coordinated constraint of two mechanisms. This significantly improves the accuracy and reliability of the vehicle body positioning and provides a stable benchmark for the smooth progress of subsequent assembly processes.

[0039] like Figure 1 , Figure 5 and Figure 6 As shown in the figure, the positioning device includes two first positioning mechanisms 4 and two second positioning mechanisms 5. The two first positioning mechanisms 4 and the two second positioning mechanisms 5 are symmetrically distributed relative to the pneumatic control box 102 and are all fixed to the base plate 101.

[0040] In this embodiment, both the first positioning mechanism 4 and the second positioning mechanism 5 are arranged inside the lifting device 103, and the second positioning mechanism 5 is located outside the first positioning mechanism 4.

[0041] like Figure 1 , Figures 7-9 As shown in the figure, the support device includes two first support mechanisms 6, two second support mechanisms 7 and two third support mechanisms 8. The two first support mechanisms 6, two second support mechanisms 7 and two third support mechanisms 8 are symmetrically distributed relative to the pneumatic control box 102 and are all fixed to the base plate 101.

[0042] In this embodiment, the support device can rigidly lift the engine hood, providing a stable support platform for the engine hood assembly process and ensuring that the engine hood is always at the preset assembly height and horizontal position.

[0043] At the same time, it can work in conjunction with the positioning device and the locking device to form a limiting constraint on the engine hood from the bottom, further limiting the displacement of the engine hood in the vertical direction and its rotation around the horizontal axis, thereby ensuring the docking accuracy of the engine hood with the front of the vehicle body, fenders and other components.

[0044] like Figure 1 and Figure 3 As shown, the first locking mechanism 2 includes a vertically arranged first cylinder 201, and a first positioning block 202 and a first pressing block 203 arranged opposite to each other.

[0045] In this embodiment, the first positioning block 202 adopts an L-shaped structure design, with its long side arranged horizontally and fixedly connected to the bottom of the first connecting block 204, and its short side extending vertically and aligned vertically with the pressing surface of the first pressing block 203.

[0046] Preferably, the top of the first positioning block 202 is fixedly connected to one end of the first cylinder 201 via the first connecting block 204, and the first connecting block 204 is fixedly connected to the base plate 101 via the first support block 205, and the bottom of the first pressing block 203 is fixedly connected to the other end of the first cylinder 201.

[0047] In this embodiment, the first support block 205 adopts an L-shaped structure design, with one horizontally extended end fixedly connected to the base plate 101, and the other vertically extended end firmly connected to the first connecting block 204, forming a stable support and positioning structure.

[0048] like Figure 1 and Figure 4 As shown, the second locking mechanism 3 includes a vertically arranged second cylinder 301, and a vertically arranged second positioning block 302 and a second pressing block 303.

[0049] In this embodiment, the second positioning block 302 and the second pressing block 303 are arranged in a staggered manner.

[0050] Preferably, the second positioning block 302 is fixedly connected to one end of the second cylinder 301 via the second connecting block 304, and the second connecting block 304 is fixedly connected to the base plate 101 via the second support block 305, and the bottom of the second pressing block 303 is fixedly connected to the other end of the second cylinder 301.

[0051] In this embodiment, the second support block 305 adopts an L-shaped structure design. Its horizontally extending side is fixedly connected to the base plate 101 by fasteners, while its vertically extending side is firmly connected to the middle of the second connecting block 304 to form a stable support carrier.

[0052] The second connecting block 304 is an integrated installation structure. One end of it is fixedly mounted with one end of the second cylinder 301, and the other end is fixedly mounted with the second positioning block 302, so that the cylinder driving and positioning functions form a compact linkage layout.

[0053] like Figure 1 and Figure 5 As shown, the first positioning mechanism 4 includes a first positioning pin 401 that is inclined. The lower end of the first positioning pin 401 is fixedly connected to a first support base 403 through a third connecting block 402, and the lower end of the first support base 403 is fixedly connected to the base plate 101.

[0054] In this embodiment, the first positioning mechanism 4 is precisely matched with the position of the preset positioning hole on the inner panel of the engine hood, and its positioning end can form a stable fitting relationship with the positioning hole.

[0055] like Figure 1 and Figure 6 As shown, the second positioning mechanism 5 includes a vertically arranged second positioning pin 501. The upper end of the second positioning pin 501 is fixedly connected to a second support base 503 through a fourth connecting block 502, and the upper end of the second support base 503 is fixedly connected to the base plate 101.

[0056] Moreover, the second positioning mechanism 5 is positioned one-to-one with the positioning hole position of the body fender, and can achieve precise docking with the fender positioning hole through structural adaptability design.

[0057] Therefore, the position design of the first positioning mechanism 4 and the second positioning mechanism 5 is based on the reference positioning points of the vehicle body parts, ensuring the accuracy and effectiveness of the positioning action.

[0058] like Figure 1 and Figure 7 As shown, the first support mechanism 6 includes a third support block 601 arranged in an L-shape. The short side of the third support block 601 is inclined upwards, and its long side is located below the short side. The long side of the third support block 601 is fixed to the base plate 101 through a third support base 602.

[0059] like Figure 1 and Figure 8As shown, the second support mechanism 7 includes a fourth support block 701 arranged in an L-shape. The long side of the fourth support block 701 is arranged vertically, and its short side is arranged below its long side. The short side of the fourth support block 701 is fixed to the base plate 101 through the fourth support base 702.

[0060] like Figure 1 and Figure 9 As shown, the third support mechanism 8 includes a fifth support block 801 arranged in an L-shape. The long side of the fifth support block 801 is arranged vertically, and the top of the long side is inclined. The short side of the fifth support block 801 is arranged below its long side and is fixed to the base plate 101 by the fifth support base 802.

[0061] The specific process for assembling the engine cover using this utility model is as follows: S1. Platform base 1 is initially in a lifted state. After the body-in-white is transported to the target work station, the worker first unfolds the mounting hinge of the engine hood, and then controls the platform base 1 to fall smoothly. S2. When the second positioning pin 501 of the second positioning mechanism 5 is precisely matched with the preset positioning hole of the fender, the platform base 1 automatically stops falling and completes the initial positioning. S3. The worker presses the corresponding control button in the button box 104 to trigger the first locking mechanism 2 and the second locking mechanism 3 to perform the locking action; S4. The first cylinder 201 in the first locking mechanism 2 drives the first pressing block 203 to move closer to the first positioning block 202 through transmission. Finally, with the cooperation of the first positioning block 202 and the first pressing block 203, the water channel of the car body is reliably clamped. S5. Simultaneously, the second cylinder 301 in the second locking mechanism 3 drives the second pressing block 303 to move closer to the second positioning block 302. The headlight beam is clamped by the cooperation of the second positioning block 302 and the second pressing block 303, so as to achieve precise fixation of the platform base 1. S6. The worker fastens the hinge of the engine hood to the third support block 601 of the first support mechanism 6 to complete the hinge pre-positioning. S7. Smoothly move the engine cover to the platform base 1 and fine-tune its posture to match the assembly reference. S8. The first positioning pin 401 of the first positioning mechanism 4 is precisely connected with the positioning hole of the inner plate of the engine cover. At the same time, the fourth support block 701 of the second support mechanism 7 and the fifth support block 801 of the third support mechanism 8 are respectively supported in the corresponding areas of the inner plate of the engine cover. The third support block 601 of the first support mechanism 6 provides stable support for the engine cover hinge, thereby achieving all-round positioning and support of the engine cover. S9. At this point, the relative positions of the engine cover and the mounting hinge are precisely fixed. The worker can tighten the assembly bolts to securely and accurately assemble the engine cover onto the mounting hinge, completing the entire assembly process.

[0062] In summary, this utility model improves the assembly accuracy of engine hood components through multiple positioning and locking mechanisms, thereby meeting the increasingly stringent production requirements of the market; at the same time, the setting of multiple positioning and support mechanisms realizes the precise positioning and reliable clamping of the engine hood at the assembly station.

[0063] Example 2 This embodiment is basically the same as Embodiment 1, except that: like Figure 1 and Figure 2 As shown, the base plate 101 includes a first fixed plate 105, a second fixed plate 106, a third fixed plate 107 and a fourth fixed plate 108 arranged in pairs.

[0064] like Figure 1 As shown, the first locking mechanism 2 is fixed to the base plate 101 through the first fixing plate 105, the second locking mechanism 3 is fixed to the base plate 101 through the second fixing plate 106, the third support mechanism 8 is fixed to the base plate 101 through the third fixing plate 107, and the first positioning mechanism 4, the second positioning mechanism 5, the first support mechanism 6 and the second support mechanism 7 are jointly fixed to the base plate 101 through the fourth fixing plate 108.

[0065] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A car engine hood assembly fixture, characterized in that, Includes a platform base (1), on which a locking device, a positioning device and a support device are installed; The platform base (1) includes a base plate (101), a pneumatic control box (102) is fixedly connected to the middle of the base plate (101), and a lifting device (103) and a button box (104) are fixedly connected to both ends of the base plate (101). The locking device includes two first locking mechanisms (2) and two second locking mechanisms (3). The two first locking mechanisms (2) and the two second locking mechanisms (3) are symmetrically distributed relative to the pneumatic control box (102) and are all fixed to the base plate (101). The positioning device includes two first positioning mechanisms (4) and two second positioning mechanisms (5). The two first positioning mechanisms (4) and the two second positioning mechanisms (5) are symmetrically distributed relative to the pneumatic control box (102) and are all fixed to the base plate (101). The support device includes two first support mechanisms (6), two second support mechanisms (7) and two third support mechanisms (8). The two first support mechanisms (6), two second support mechanisms (7) and two third support mechanisms (8) are symmetrically distributed relative to the pneumatic control box (102) and are all fixed to the base plate (101).

2. The automobile engine cover assembly fixture according to claim 1, characterized in that, The first locking mechanism (2) includes a vertically arranged first cylinder (201), and a first positioning block (202) and a first pressing block (203) arranged opposite each other. The top of the first positioning block (202) is fixedly connected to one end of the first cylinder (201) through a first connecting block (204), and the first connecting block (204) is fixedly connected to the base plate (101) through a first support block (205). The bottom of the first pressing block (203) is fixedly connected to the other end of the first cylinder (201).

3. The automobile engine cover assembly fixture according to claim 1, characterized in that, The second locking mechanism (3) includes a vertically arranged second cylinder (301), a vertically arranged second positioning block (302), and a second pressing block (303). The second positioning block (302) is fixedly connected to one end of the second cylinder (301) through a second connecting block (304), and the second connecting block (304) is fixedly connected to the base plate (101) through a second support block (305). The bottom of the second pressing block (303) is fixedly connected to the other end of the second cylinder (301).

4. The automobile engine cover assembly fixture according to claim 1, characterized in that, The first positioning mechanism (4) includes a first positioning pin (401) set at an inclination. The lower end of the first positioning pin (401) is fixedly connected to a first support base (403) through a third connecting block (402), and the lower end of the first support base (403) is fixedly connected to the base plate (101).

5. The automobile engine cover assembly fixture according to claim 1, characterized in that, The second positioning mechanism (5) includes a vertically arranged second positioning pin (501). The upper end of the second positioning pin (501) is fixedly connected to a second support base (503) via a fourth connecting block (502), and the upper end of the second support base (503) is fixedly connected to the base plate (101).

6. The automobile engine cover assembly fixture according to claim 1, characterized in that, The first support mechanism (6) includes a third support block (601) arranged in an L-shape. The short side of the third support block (601) is inclined upwards, and its long side is arranged below its short side. The long side of the third support block (601) is fixed to the base plate (101) through the third support base (602).

7. The automobile engine cover assembly fixture according to claim 1, characterized in that, The second support mechanism (7) includes a fourth support block (701) arranged in an L-shape. The long side of the fourth support block (701) is arranged vertically, and its short side is arranged below its long side. The short side of the fourth support block (701) is fixed to the base plate (101) through the fourth support base (702).

8. The automobile engine cover assembly fixture according to claim 1, characterized in that, The third support mechanism (8) includes a fifth support block (801) arranged in an L-shape. The long side of the fifth support block (801) is arranged vertically, and the top of the long side is inclined. The short side of the fifth support block (801) is arranged below its long side and is fixed to the base plate (101) by the fifth support base (802).

9. The automobile engine cover assembly fixture according to claim 1, characterized in that, The base plate (101) includes a first fixed plate (105), a second fixed plate (106), a third fixed plate (107), and a fourth fixed plate (108) arranged in pairs.

10. A car engine cover assembly fixture according to claim 9, characterized in that, The first locking mechanism (2) is fixed to the base plate (101) through the first fixing plate (105), the second locking mechanism (3) is fixed to the base plate (101) through the second fixing plate (106), the third support mechanism (8) is fixed to the base plate (101) through the third fixing plate (107), and the first positioning mechanism (4), the second positioning mechanism (5), the first support mechanism (6) and the second support mechanism (7) are all fixed to the base plate (101) through the fourth fixing plate (108).

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