Auxiliary tool for assembling metal frame of vehicle-mounted central control screen

Abstract

The invention discloses an auxiliary tool for assembling a metal frame of a vehicle-mounted central control screen, and relates to the technical field of metal frame tools. A first bottom jig and a second bottom jig; a first pressing jig is arranged at the position, corresponding to the first bottom jig, of the upper end of the supporting table, and a second pressing jig is arranged at the position, corresponding to the second bottom jig, of the upper end of the supporting table. The center area of the first bottom jig and the center area of the second bottom jig are each provided with a negative pressure adsorption mechanism used for adsorbing and fixing center control screen glass. The periphery of the first bottom jig and the periphery of the second bottom jig are each provided with a hydraulic bag supporting mechanism used for supporting a metal frame. When the first pressing jig or the second pressing jig moves downwards, the negative pressure adsorption mechanism is firstly driven to work to generate negative pressure, and then the hydraulic bag supporting mechanism works and supports the metal frame; according to the invention, the stability of the central control screen glass in the pressing process is effectively ensured.

Description

Technical Field

[0001] This invention relates to the technical field of metal frame tooling, specifically to an auxiliary tooling for assembling metal frames for vehicle central control screens. Background Technology

[0002] As the core interactive interface of modern car cockpits, the appearance quality and assembly reliability of in-vehicle central control screens are receiving increasing attention. As a key structural and appearance component of the central control screen assembly, the metal frame requires extremely high assembly precision with the screen glass. During the assembly process, it is necessary to ensure that the frame is subjected to uniform stress to avoid screen glass cracking, frame deformation, or assembly gaps caused by stress concentration, which would affect product yield and aesthetics.

[0003] In practical use, existing tooling fixtures for assembling metal frames and central control screens often use simple mechanical positioning blocks or clamps to fix the screen. Under the impact or vibration of pressing the frame, the screen is prone to slight displacement, resulting in a decrease in assembly accuracy. Furthermore, for metal frames with curved surfaces or complex three-dimensional shapes, traditional rigid support blocks cannot fit perfectly. This causes the frame to be partially suspended or unevenly stressed during pressing, which can easily cause the frame to warp or exert uneven pressure on the screen glass, posing a risk of damage. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an auxiliary tooling for assembling the metal frame of an in-vehicle central control screen.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: This invention provides an auxiliary tooling for assembling the metal frame of an in-vehicle central control screen, comprising: Support platform; The first bottom fixture and the second bottom fixture are respectively disposed on the upper end of the support platform through two sets of first station switching components and second station switching components arranged in parallel to each other. The upper end of the support platform is provided with a first clamping fixture at a position corresponding to the first bottom fixture, and the upper end of the support platform is provided with a second clamping fixture at a position corresponding to the second bottom fixture. The first bottom fixture and the second bottom fixture are respectively provided with negative pressure adsorption mechanism for adsorbing and fixing the central control screen glass in the central area, and the first bottom fixture and the second bottom fixture are respectively provided with hydraulic bladder support mechanism for supporting the metal frame. When the first or second clamping fixture moves downward, it first drives the negative pressure adsorption mechanism to work and generate negative pressure, and then the hydraulic bladder support mechanism works to support the metal frame.

[0006] As a preferred technical solution of the present invention, the first bottom fixture or the second bottom fixture includes a placement cavity formed in the middle of the upper end for placing the central control screen glass; The negative pressure adsorption mechanism includes several adsorption plates disposed inside the placement cavity and used to support the central control screen glass, and piston pump assemblies disposed at the lower end of the adsorption plates and connected to the adsorption plates. A switching mechanism is provided at the upper end of the first bottom fixture. When the first or second pressing fixture is pressed down, the switching mechanism is triggered, thereby driving multiple sets of piston pump assemblies to work simultaneously.

[0007] As a preferred embodiment of the present invention, the switching mechanism is a lever switch or a push-button switch.

[0008] As a preferred embodiment of the present invention, the hydraulic bladder support mechanism includes a circumferential hydraulic bladder arranged around the interior of the placement cavity and at least one supplementary hydraulic bladder, wherein the circumferential hydraulic bladder and the supplementary hydraulic bladder are connected by a fluid pipe.

[0009] As a preferred embodiment of the present invention, the supplementary hydraulic bladder is disposed around the first bottom fixture or the second bottom fixture, and an elastic pressure plate is provided at the lower end of the first clamping fixture or the second clamping fixture at a position corresponding to the supplementary hydraulic bladder.

[0010] As a preferred embodiment of the present invention, the circumferential hydraulic bladder is a ring-shaped integrated structure or is composed of multiple independent segmented bladders connected in series.

[0011] As a preferred embodiment of the present invention, the first workstation switching component includes a first slide rail and a first drive unit, and the second workstation switching component includes a second slide rail and a second drive unit, wherein the length of the first slide rail is greater than the length of the second slide rail.

[0012] As a preferred embodiment of the present invention, the first or second clamping fixture comprises a driving member fixedly mounted on the support platform and a clamping unit disposed at the lower end of the driving member.

[0013] As a preferred embodiment of the present invention, the upper end of the support platform is further provided with a machine vision recognition mechanism, which includes a gantry frame fixedly mounted on the support platform, a first camera unit and a second camera unit mounted on the gantry frame and slidably mounted on the gantry frame via a moving unit, the first camera unit being mounted on the upper end of the first workstation switching component, and the second camera unit being mounted on the upper end of the second workstation switching component.

[0014] The beneficial effects of this invention are: 1. The present invention provides a negative pressure adsorption mechanism in the central area of ​​the first bottom fixture and the second bottom fixture, and cleverly links the operation trigger of the mechanism with the pressing action of the first pressing fixture or the second pressing fixture, thereby effectively ensuring the stability of the central control screen glass during the pressing process.

[0015] 2. The present invention provides adaptive and uniform support for metal frames, especially frames with curved surfaces or complex three-dimensional shapes, by setting hydraulic bladder support mechanisms around the first bottom fixture and the second bottom fixture.

[0016] 3. By setting up a dual-station system including a first bottom fixture, a second bottom fixture, and corresponding first clamping fixtures and second clamping fixtures, and cooperating with the first station switching component and the second station switching component, the present invention realizes parallel operation on a support platform, which greatly improves assembly efficiency. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of a power component.

[0020] Figure 3 This is a structural diagram of the foot buckle unit.

[0021] Figure 4 This is a schematic diagram of the structure of an artificial component.

[0022] Figure 5 This is a schematic diagram of the structure of a power component.

[0023] Figure 6 This is a structural diagram of the foot buckle unit.

[0024] Figure 7 This is a schematic diagram of the structure of an artificial component.

[0025] Figure 8 This is a schematic diagram of the structure of a power component.

[0026] In the diagram: 1. Support platform; 2. First bottom fixture; 21. Placement cavity; 3. Second bottom fixture; 4. First station switching assembly; 41. First slide rail; 42. First drive unit; 5. Second station switching assembly; 51. Second slide rail; 52. Second drive unit; 6. First clamping fixture; 61. Drive component; 62. Clamping unit; 7. Second clamping fixture; 8. Negative pressure adsorption mechanism; 81. Adsorption plate; 82. Piston pump assembly; 9. Hydraulic bladder support mechanism; 91. Circumferential hydraulic bladder; 92. Supplementary hydraulic bladder; 93. Fluid pipeline; 10. Switching mechanism; 11. Elastic pressure plate; 12. Machine vision recognition mechanism; 121. Gantry frame; 122. Moving unit; 123. First camera unit; 124. Second camera unit. Detailed Implementation

[0027] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this application, and not all embodiments. The components of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0028] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this application, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] like Figures 1-6As shown, an auxiliary tooling for assembling the metal frame of a vehicle central control screen includes a support platform 1; a first bottom fixture 2 and a second bottom fixture 3, the first bottom fixture 2 and the second bottom fixture 3 being respectively disposed on the upper end of the support platform 1 via two sets of parallel first station switching components 4 and second station switching components 5; a first clamping fixture 6 is disposed on the upper end of the support platform 1 at the position corresponding to the first bottom fixture 2, and a second clamping fixture 7 is disposed on the upper end of the support platform 1 at the position corresponding to the second bottom fixture 3; a negative pressure adsorption mechanism 8 for adsorbing and fixing the central control screen glass is disposed in the central area of ​​the first bottom fixture 2 and the second bottom fixture 3, and a hydraulic bladder support mechanism 9 for supporting the metal frame is disposed around the first bottom fixture 2 and the second bottom fixture 3; when the first clamping fixture 6 or the second clamping fixture 7 moves downward, the negative pressure adsorption mechanism 8 is first driven to work to generate negative pressure, and then the hydraulic bladder support mechanism 9 works to support the metal frame.

[0030] Among them, the first bottom fixture 2 and the second bottom fixture 3 are the core workpiece bearing platforms. They are installed on the upper end of the support platform 1 through the first station switching component 4 and the second station switching component 5. These two sets of station switching components are arranged in parallel to each other, which means that they extend in the same direction, but their running paths do not interfere with each other. This allows the first bottom fixture 2 and the second bottom fixture 3 to move independently and asynchronously in a straight line. This layout allows one station to be in the pressing station (i.e., directly below the pressing fixture) while the other station is in the loading and unloading station on the outside.

[0031] The negative pressure adsorption mechanism 8 is integrated in the central area of ​​the first bottom fixture 2 and the second bottom fixture 3. Its core function is to firmly fix the central control screen glass before the pressing action begins, so as to provide a stable reference for the subsequent frame pressing. The hydraulic bladder support mechanism 9 is set in the peripheral area of ​​the bottom fixture. Its function is to provide adaptive and uniform support for metal frames, especially frames with complex three-dimensional curved surfaces.

[0032] When the first clamping fixture 6 or the second clamping fixture 7 receives the instruction to start moving downward, its downward movement does not directly press against the workpiece. Instead, it first drives the negative pressure adsorption mechanism 8 to work, generating sufficient vacuum negative pressure in a very short time to firmly adsorb and fix the central control screen glass placed on the bottom fixture. This step ensures that the screen will not be displaced when subjected to subsequent pressing force. Next, as the first clamping fixture 6 or the second clamping fixture 7 continues to descend, the hydraulic bladder support mechanism 9 begins to operate. This mechanism, through the principle of hydraulic transmission, causes the circumferentially arranged hydraulic bladders to inflate and deform, precisely fitting the back contour of the metal frame and providing it with all-round uniform support. At this point, the screen has been fixed and the frame has been well supported. The clamping fixture can then apply the main pressing force to complete the final precision assembly. This timing control of "fixing the screen first, supporting the frame, and finally pressing" is automatically and sequentially triggered by the single linear downward pressing action of the clamping fixture.

[0033] Furthermore, such as Figures 5-7 As shown, the first bottom fixture 2 or the second bottom fixture 3 includes a placement cavity 21 formed in the middle of the upper end for placing the central control screen glass; The negative pressure adsorption mechanism 8 includes several adsorption plates 81 disposed inside the placement cavity 21 and used to support the central control screen glass, and piston pump assemblies 82 disposed at the lower end of the adsorption plates 81 and connected to the adsorption plates 81. A switching mechanism 10 is provided at the upper end of the first bottom fixture 2. When the first pressing fixture 6 or the second pressing fixture 7 is pressed down, the switching mechanism 10 is triggered, thereby driving multiple sets of piston pump assemblies 82 to work simultaneously.

[0034] The adsorption plate 81 itself can be a graphite block with micropores, a porous ceramic plate, or a metal plate (with several tiny adsorption holes drilled on it). A better option is to embed or paste an elastic sealing material (such as rubber, silicone, or polyurethane) on the upper surface of the adsorption plate 81 to better seal the back of the glass and prevent scratches during adsorption.

[0035] Each of the adsorption plates 81 is connected to an independent piston pump assembly 82 at its lower end. The piston pump assembly 82 can be understood as a miniature manual piston pump, including a cylinder, piston, and piston rod. The piston rods of all piston pump assemblies 82 can be connected together by a common linkage frame (such as a flat plate). The switching mechanism 10 is located on the upper surface of the first bottom fixture 2 at a position easily accessible to the clamping fixture. When the clamping fixture is pressed down, it will first contact the switching mechanism 10. After the switching mechanism 10 is triggered, its internal mechanism (such as a lever, linkage, or direct push) will pull or push the linkage frame, thereby causing the pistons of all piston pump assemblies 82 to move synchronously. The piston moves downward in the cylinder, instantly generating a negative pressure (vacuum) in the sealed space below the adsorption plate 81. This negative pressure acts on the back of the glass through the micropores on the adsorption plate 81, generating a strong adsorption force.

[0036] Since all piston pump assemblies 82 operate synchronously, the adsorption force on all parts of the glass is uniform, avoiding internal stress caused by uneven force.

[0037] Furthermore, such as Figure 5 As shown, the switching mechanism 10 is a lever switch or a push-button switch.

[0038] The lever switch is a reliable mechanical triggering method. It consists of an L-shaped lever, a fixed fulcrum shaft, a return spring, and a trigger roller. One end of the lever is connected to the linkage frame of the piston pump assembly 82 via a connecting rod or directly, and the other end is equipped with a trigger roller. When the clamping fixture is pressed down, a protrusion or a specific inclined surface on it will press against the trigger roller, forcing the lever to rotate around the fulcrum, thereby pulling the linkage frame and starting the piston pump. When the clamping fixture rises, the return spring resets the lever.

[0039] A push-button switch can be a plunger-type button with a large contact surface and a powerful return spring inside. The button is directly or through a short connecting rod pressed against the linkage frame. When the clamping fixture is pressed down, the top of the button is pressed directly, and the button moves down to push the frame. Both methods are existing technologies, and their specific structures are not shown in the figure.

[0040] Furthermore, such as Figures 5-7 As shown, the hydraulic bladder support mechanism 9 includes a circumferential hydraulic bladder 91 arranged around the interior of the placement cavity 21 and at least one supplementary hydraulic bladder 92, the circumferential hydraulic bladder 91 and the supplementary hydraulic bladder 92 being connected by a fluid pipe 93.

[0041] The circumferential hydraulic bladder 91 is a key flexible support element, which is arranged around the interior of the placement cavity 21. This means that the circumferential hydraulic bladder 91 is located on the periphery of the placement cavity 21, between the wall of the placement cavity 21 and the metal frame to be supported.

[0042] The circumferential hydraulic bladder 91 can be made of highly elastic, oil-resistant, and fatigue-resistant rubber or silicone material, forming a closed annular bladder.

[0043] The supplementary hydraulic bladder 92 serves as a pressure compensation and liquid storage tank. It is connected to the circumferential hydraulic bladder 91 through the fluid pipe 93 (such as a pressure-resistant plastic hose or a small metal tube) to form a closed hydraulic system filled with incompressible hydraulic oil.

[0044] When the circumferential hydraulic bladder 91 is not compressed, the entire system is in a state of pressure balance. When the circumferential hydraulic bladder 91 is subjected to the pressure of the frame, the bladder deforms and the oil inside is squeezed into the supplementary hydraulic bladder 92. Conversely, if the external mechanism compresses the supplementary hydraulic bladder 92, the oil will be forced into the circumferential hydraulic bladder 91, causing it to swell.

[0045] Furthermore, such as Figures 5-7As shown, the supplementary hydraulic bladder 92 is disposed around the first bottom fixture 2 or the second bottom fixture 3, and an elastic pressure plate 11 is disposed at the lower end of the first clamping fixture 6 or the second clamping fixture 7 at a position corresponding to the supplementary hydraulic bladder 92.

[0046] The supplementary hydraulic bladder 92 is housed within the peripheral structure of the bottom fixture body, such as in a specially machined groove.

[0047] The elastic pressure plate 11 is installed at the lower end of the first clamping fixture 6 or the second clamping fixture 7. Its position is precisely designed so that when the clamping fixture descends to a certain height, the elastic pressure plate 11 can accurately press down on the top of the area where the supplementary hydraulic bladder 92 is located.

[0048] The elastic pressure plate 11 can be made of common elastic materials (such as rubber or silicone) to ensure that it can provide a certain amount of cushioning and maintain constant pressure during the pressing process.

[0049] After the negative pressure adsorption action is completed, the first clamping fixture 6 or the second clamping fixture 7 continues to descend. At this time, the elastic pressure plate 11 on the first clamping fixture 6 or the second clamping fixture 7 has already contacted and begun to compress the supplementary hydraulic bladder 92 at the bottom. The oil in the supplementary hydraulic bladder 92 is squeezed into the circumferential hydraulic bladder 91 through the fluid pipe 93 under pressure. The circumferential hydraulic bladder 91 thus expands and rises, actively welcoming and supporting the metal frame. Subsequently, the main body of the clamping fixture presses onto the frame for final pressing.

[0050] Furthermore, such as Figure 5 As shown, the circumferential hydraulic bladder 91 is a ring-shaped integrated structure or is composed of multiple independent segmented bladders connected in series.

[0051] The circumferential hydraulic bladder 91 is a ring-shaped integrated structure suitable for frames with regular shapes (such as rounded rectangles) and gentle curvature changes. The circumferential hydraulic bladder 91 can provide continuous and uniform support and is relatively simple to manufacture.

[0052] The circumferential hydraulic bladder 91 is more flexible as it is composed of multiple independent segmented bladders connected in series. Each segmented bladder can correspond to a specific section of the frame (such as the long side, short side, or corner). Although they are connected in series through fluid pipes 93 and the pressure will eventually be balanced, because each bladder is independent, it can better adapt to the complex local curvature changes of the frame and provide more precise local support. For example, at the corner of the frame, a larger amount of inflation may be required, and the segmented design can better meet this need.

[0053] Furthermore, such as Figure 4As shown, the first workstation switching component 4 includes a first slide rail 41 and a first drive unit 42, and the second workstation switching component 5 includes a second slide rail 51 and a second drive unit 52. The length of the first slide rail 41 is greater than the length of the second slide rail 51.

[0054] The first slide rail 41 and the second slide rail 51 are high-precision linear guide pairs to ensure that the bottom fixture moves smoothly and is positioned accurately. The first drive unit 42 and the second drive unit 52 can be servo motors with ball screws for applications requiring precise positioning; or they can be cylinders for applications where cost and speed are pursued.

[0055] The length of the first slide rail 41 is greater than the length of the second slide rail 51, which allows the first bottom fixture 2 to have a longer stroke than the second bottom fixture 3. Most importantly, this arrangement allows the first bottom fixture 2 and the second bottom fixture 3 to work at different workstations.

[0056] Furthermore, such as Figure 2 As shown, the first clamping fixture 6 or the second clamping fixture 7 comprises a driving member 61 fixedly mounted on the support platform 1 and a clamping unit 62 disposed at the lower end of the driving member 61.

[0057] The drive unit 61 is a power source and can be an industrial robot. The clamping unit 62 is installed at the output end of the drive unit 61 via a flange or quick-connect coupling. The pressing surface of the clamping unit 62 needs to be designed to conform to the shape of the front of the frame to be pressed.

[0058] Furthermore, such as Figure 8 As shown, the upper end of the support platform 1 is also provided with a machine vision recognition mechanism 12, which includes a gantry frame 121 fixedly mounted on the support platform 1, a first camera unit 123 and a second camera unit 124 mounted on the gantry frame 121 and slidably mounted on the gantry frame 121 via a moving unit 122. The first camera unit 123 is located at the upper end of the first workstation switching component 4, and the second camera unit 124 is located at the upper end of the second workstation switching component 5.

[0059] The gantry 121 straddles the support platform 1, covering the movement range of the first workstation switching component 4 and the second workstation switching component 5. The moving unit 122 is a linear module mounted on the crossbeam of the gantry 121 and driven by a servo motor. The first camera unit 123 and the second camera unit 124 are high-resolution industrial digital cameras, usually equipped with a ring LED light source to eliminate shadows and obtain clear images. They are fixed to the moving unit 122 by a mounting plate. After the first bottom fixture 2 and the second bottom fixture 3 carry the screen to the predetermined position, the control system instructs the moving unit 122 to move the corresponding camera above the first bottom fixture 2 and the second bottom fixture 3. The camera takes pictures of the workpiece, and the position and angle of the specific marks and borders on the screen are accurately identified by the image processing algorithm. The system calculates the positional deviation between the two. Within the acceptable range of deviation, it is directly used as a parameter to compensate the driving component 61 of the first clamping fixture 6 and the second clamping fixture 7, so that it can perform dynamic correction during the pressing process, which greatly improves the assembly accuracy and automation level.

[0060] Work process: Loading: The first bottom fixture 2 is located at the inner loading and unloading station, and the second bottom fixture 3 is located at the outer pressing station; the operator puts the central control screen glass into the placement cavity 21 of the first bottom fixture 2 and aligns the metal frame on the glass; at the same time, the workpiece on the second bottom fixture 3 is in the pressing state. Workstation switching and identification: The first drive unit 42 pushes the first bottom fixture 2 along the first slide rail 41 into the pressing station (at this time, the second bottom fixture 3 can be moved out by the second drive unit 52 to another loading and unloading station); the first camera unit 123 of the machine vision identification mechanism 12 takes pictures and positions the workpiece on the first bottom fixture 2; Pressing cycle (taking the first station as an example): a. Trigger adsorption: The drive component 61 of the first clamping fixture 6 is activated, and the clamping unit 62 moves downward; in the initial stage of downward movement, the triggering component on the clamping fixture contacts and triggers the switching mechanism 10 on the first bottom fixture 2; b. Fixing the screen: The switching mechanism 10 drives all piston pump components 82 to work synchronously, generating negative pressure at the adsorption plate 81, which firmly adsorbs the central control screen glass into the placement cavity 21. c. Support frame: As the clamping fixture continues to descend, the elastic pressure plate 11 on it begins to compress and replenish the hydraulic bladder 92. The oil is forced into the circumferential hydraulic bladder 91, causing it to swell and precisely lift and fit the back of the metal frame. d. Final pressing: The main pressing head of the clamping fixture contacts the front of the frame and applies a preset pressure to complete the pressing and assembly of the frame and the screen; Unloading and circulation: After pressing is completed, the first pressing fixture 6 rises and resets, the negative pressure is released, and the circumferential hydraulic bladder 91 retracts under the action of internal elasticity or external mechanism; the operator or robot takes out the assembled product, puts in the new component, and starts the next cycle; the second station performs the same operation, and the two stations alternate to achieve continuous production.

[0061] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An auxiliary tooling for assembling the metal frame of a vehicle central control screen, characterized in that, include: Support platform (1); The first bottom fixture (2) and the second bottom fixture (3) are respectively set on the upper end of the support platform (1) through two sets of parallel first station switching components (4) and second station switching components (5); The upper end of the support platform (1) is provided with a first clamping fixture (6) at the position corresponding to the first bottom fixture (2), and the upper end of the support platform (1) is provided with a second clamping fixture (7) at the position corresponding to the second bottom fixture (3). The first bottom fixture (2) and the second bottom fixture (3) are respectively provided with negative pressure adsorption mechanism (8) for adsorbing and fixing the central control screen glass, and the first bottom fixture (2) and the second bottom fixture (3) are respectively provided with hydraulic bladder support mechanism (9) for supporting the metal frame. When the first clamping fixture (6) or the second clamping fixture (7) moves downward, it first drives the negative pressure adsorption mechanism (8) to work and generate negative pressure, and then the hydraulic bladder support mechanism (9) works and supports the metal frame.

2. The auxiliary tooling for assembling the metal frame of a vehicle central control screen according to claim 1, characterized in that, The first bottom fixture (2) or the second bottom fixture (3) includes a placement cavity (21) opened in the middle of the upper end for placing the central control screen glass. The negative pressure adsorption mechanism (8) includes several adsorption plates (81) arranged inside the placement cavity (21) and used to support the central control screen glass, and piston pump assembly (82) arranged at the lower end of the adsorption plate (81) and connected to the adsorption plate (81). The upper end of the first bottom fixture (2) is provided with a switch mechanism (10). When the first pressing fixture (6) or the second pressing fixture (7) is pressed down, the switch mechanism (10) is triggered, thereby driving multiple sets of piston pump assemblies (82) to work simultaneously.

3. The auxiliary tooling for assembling the metal frame of a vehicle central control screen according to claim 2, characterized in that, The switching mechanism (10) is a lever switch or a push-button switch.

4. The auxiliary tooling for assembling the metal frame of a vehicle central control screen according to claim 1, characterized in that, The hydraulic bladder support mechanism (9) includes a circumferential hydraulic bladder (91) arranged around the interior of the placement cavity (21) and at least one supplementary hydraulic bladder (92), the circumferential hydraulic bladder (91) and the supplementary hydraulic bladder (92) being connected by a fluid conduit (93).

5. The auxiliary tooling for assembling the metal frame of a vehicle central control screen according to claim 4, characterized in that, The supplementary hydraulic bladder (92) is disposed around the first bottom fixture (2) or the second bottom fixture (3), and an elastic pressure plate (11) is provided at the lower end of the first clamping fixture (6) or the second clamping fixture (7) at a position corresponding to the supplementary hydraulic bladder (92).

6. The auxiliary tooling for assembling the metal frame of a vehicle central control screen according to claim 4, characterized in that, The circumferential hydraulic bladder (91) is a ring-shaped integrated structure or is composed of multiple independent segmented bladders connected in series.

7. The auxiliary tooling for assembling the metal frame of a vehicle central control screen according to claim 1, characterized in that, The first workstation switching component (4) includes a first slide rail (41) and a first drive unit (42), and the second workstation switching component (5) includes a second slide rail (51) and a second drive unit (52). The length of the first slide rail (41) is greater than the length of the second slide rail (51).

8. The auxiliary tooling for assembling the metal frame of a vehicle central control screen according to claim 1, characterized in that, The first clamping fixture (6) or the second clamping fixture (7) consists of a drive member (61) fixedly mounted on the support platform (1) and a clamping unit (62) mounted at the lower end of the drive member (61).

9. An auxiliary tooling for assembling the metal frame of a vehicle central control screen according to claim 7, characterized in that, The upper end of the support platform (1) is also provided with a machine vision recognition mechanism (12), which includes a gantry frame (121) fixedly installed on the support platform (1), a first camera unit (123) and a second camera unit (124) installed on the gantry frame (121) and slidably installed on the gantry frame (121) through a moving unit (122). The first camera unit (123) is installed on the upper end of the first workstation switching component (4), and the second camera unit (124) is installed on the upper end of the second workstation switching component (5).

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