General frame for pressing automobile roof workpieces

Abstract

The utility model provides a kind of automobile ceiling workpiece press fitting general rack, including rack, the upper end of rack is equipped with liftable mounting bracket, and the top plate of rack is equipped with lifting drive assembly;The lower of mounting bracket is equipped with turnover frame, and one end of turnover frame is rotatably connected with one end of mounting bracket, and turnover drive assembly is further provided on mounting bracket;Workbench on the lower end of rack is provided with mounting groove, and lower die mounting seat is detachably equipped in mounting groove, and the bottom of mounting groove is provided with positioning block outside convex;The left and right side walls of rack are both provided with guide slide rail, and mounting bracket is connected with guide sliding block respectively with guide slide rail sliding fit. The automobile ceiling workpiece press fitting general rack, the structure for installing upper die can be turned to the position opposite to the operator, convenient for workpiece installation, ensure workpiece installation position accuracy, also can improve work efficiency, and the press fitting mechanism is stable and reliable.

Description

Technical Field

[0001] This utility model relates to the field of automobile roof manufacturing technology, and more specifically, to a universal frame for pressing automobile roof workpieces. Background Technology

[0002] As a crucial component of the vehicle's interior, the car roof plays an indispensable role in enhancing a car's competitiveness. Its function is also evolving; it's no longer just about improving the interior's aesthetics, but also about providing excellent heat insulation, noise reduction, and sound absorption. Currently, after the car roof is manufactured, multiple plastic or metal components are typically bonded to its back side to connect and secure it to the vehicle's body structure.

[0003] In existing pressing fixtures, a lower mold core for positioning the car roof is typically located at the lower end of the frame. A vertically lifting pressing mechanism is located on the top plate of the frame. An upper mold core, matching the lower mold core, is mounted on the pressing mechanism, and the upper mold core usually has multiple positioning parts for positioning plastic or metal parts. During operation, the car roof is first horizontally positioned on the lower mold core. The worker manually installs the corresponding plastic or metal parts onto the positioning parts of the upper mold core. Then, the pressing mechanism moves downwards to press and bond the plastic or metal parts onto the roof.

[0004] In the existing solutions mentioned above, the lack of a dedicated guiding mechanism leads to insufficient stability in the lifting process of the press-fitting structure; due to space and pre-assembly direction limitations, the pre-assembly efficiency of plastic or metal parts is low, and the workpiece needs to be manually installed from bottom to top to the positioning part, which results in limited visibility and deviations in the pre-assembly position.

[0005] On the other hand, existing press-fitting mechanisms are usually driven by pneumatic cylinders or hydraulic cylinders, which have low positioning accuracy for lifting and lowering, making it difficult to achieve precise control of the intermediate position. Moreover, the thrust is limited, and if the thrust is to be increased, a large cylinder diameter is required, resulting in a bulky size. Furthermore, this driving method relies on a pneumatic power supply system or a hydraulic pump station, which has high energy consumption and increases long-term operating costs. Pneumatic power supply systems have loud exhaust noise, affecting the working environment, while hydraulic systems have defects such as oil contamination. Utility Model Content

[0006] To overcome at least one of the defects in the prior art, this utility model provides a universal frame for pressing automotive roof parts. The structure for installing the upper mold core can be flipped to a position facing the operator, which facilitates workpiece installation, ensures the accuracy of workpiece installation position, and improves work efficiency. Moreover, the pressing mechanism is stable and reliable in lifting and lowering.

[0007] This utility model provides a universal frame for pressing automotive roof parts, including a frame. The upper end of the frame is provided with a vertically adjustable mounting frame. A lifting drive assembly for driving the mounting frame to rise and fall is provided on the top plate of the frame. Below the mounting frame is a parallel rotating frame for detachably mounting upper mold cores of various specifications. One end of the rotating frame is connected to one end of the mounting frame in a vertically rotatable manner. The mounting frame also has a rotating drive assembly for driving the rotating frame downwards to the loading position. A mounting groove is provided on the worktable at the lower end of the frame. A lower mold mounting seat for mounting lower mold cores of various specifications is detachably mounted in the mounting groove. A positioning block for limiting the lower mold mounting seat is provided at the bottom of the mounting groove. Two guide rails extending vertically along the front and rear sides are provided on the left and right side walls of the frame. Guide sliders that slide and engage with the four guide rails are connected to the four corners of the mounting frame.

[0008] Compared with the prior art, the universal frame for pressing automotive roof parts according to this utility model has the following advantages:

[0009] 1. The traditional pressing mechanism is divided into a mounting frame and a tilting frame, which can rotate. In the initial position, the tilting frame is below the mounting frame and parallel to it. When a plastic or metal part to be pressed needs to be installed, the tilting drive component drives the tilting frame to rotate away from the mounting frame until the tilting frame is perpendicular to the mounting frame. This position is the loading position. This angle position can more clearly show the position of the positioning part, making it convenient for workers or robots to pre-install the plastic or metal part to be pressed on the corresponding positioning part. This not only improves the pre-installation efficiency of the pressing parts, but also ensures the accuracy of the pre-installation position, ensuring that the position on the car roof after pressing meets the design requirements, and improving the product qualification rate.

[0010] 2. Compared with the traditional structure, the flipping frame in this utility model can be matched and installed with upper mold cores of various specifications. The bottom plate is provided with an installation groove, and a lower mold mounting seat for installing lower mold cores of various specifications is detachably installed in the installation groove. When it is necessary to change the lower mold core specification, the lower mold mounting seat is removed, and after the corresponding lower mold core is replaced, it is reinstalled into the installation groove, which is very convenient.

[0011] 3. The design of the guide slide and guide slider makes the lifting of the mounting bracket more stable and reliable; it also reduces frictional resistance.

[0012] Furthermore, the lifting drive assembly includes a drive motor with dual output shafts. Each output end of the dual output shafts is connected to a drive gear. The upper end of the mounting bracket is connected to two vertically arranged racks, each rack meshing with one of the drive gears. This structure utilizes gears, racks, and a motor to achieve lifting drive, resulting in stable operation, controllable precision, convenient maintenance, and low long-term operating costs.

[0013] As an improvement, both racks are connected to axially extending positioning guides on their outer walls. Positioning frames are provided on the top plate of the frame at positions corresponding to the two racks, and each positioning frame has a positioning slider that slides with the positioning guides. In this improved structure, the positioning guides and positioning sliders make the rack lifting process smoother, less prone to skewing, and avoids engagement jamming.

[0014] In a further improvement, vertically arranged fixing plates are connected to the front ends of both sides of the tilting frame. Two hinge seats are provided at the front end of the mounting frame, and the upper ends of the two fixing plates are rotatably connected to the corresponding hinge seats. Positioning holes are provided at the rear ends of both sides of the tilting frame, and positioning pins and pin drive cylinders are provided at both ends of the mounting frame. When the tilting frame is in a parallel working position, the two pin drive cylinders are used to drive the two positioning pins to insert into the corresponding positioning holes. In the above improved structure, the positioning holes and positioning pins ensure stable positioning between the tilting frame and the mounting frame, preventing the tilting frame from tipping over due to failure of the tilting drive assembly, thus ensuring safety during use.

[0015] Furthermore, the tilting drive assembly includes two tilting drive cylinders, the housings of which are rotatably connected to the mounting frame. The tilting frame has two fixed seats, and the free ends of the piston rods of the two tilting drive cylinders are hinged to the two fixed seats respectively. In this structure, the tilting frame is driven to rotate by two tilting drive cylinders, resulting in a simple structure, convenient operation, and low cost.

[0016] In a further improvement, guide tubes and upper limit blocks are provided on the front and rear sides of both ends of the mounting bracket. Guide rods that cooperate with each guide tube and lower limit blocks corresponding to each upper limit block are respectively provided on the front and rear sides of both ends of the worktable. In this improved structure, the guide tubes and guide rods ensure the accuracy of the pressing position during the pressing and mold closing process. Furthermore, when the pressing reaches its limit position, the upper and lower limit blocks abut against each other for positioning, preventing excessive downward stroke of the pressing mechanism and protecting the canopy from damage.

[0017] In a further improvement, at least one vertically extending safety support column is provided on each of the left and right sides of the frame. Each of the mounting support columns is rotatably connected to the columns on the left and right sides of the frame in the horizontal direction to allow rotation between the working position and the storage position. When the safety support column is in the working position, it is vertically positioned directly below the mounting frame; when the mounting support column is in the storage position, it is vertically offset from the mounting frame. In the above improved structure, after the mounting support columns are installed, if the lifting drive component malfunctions and causes the mounting frame to fall during maintenance or replacement of the upper mold core, the support columns can prevent the mounting frame from falling further, effectively ensuring the safety of the workers.

[0018] In a further improvement, the lower mold mounting base is provided with two forklift slots extending along its front-rear direction. With this improved structure, when the lower mold core specifications need to be changed, the lower mold mounting base can be directly removed from the lower base plate using a forklift. After replacement, it can be easily inserted back into the mounting slots, which is very convenient.

[0019] Other improvements and advantages of this invention will be set forth in the detailed description that follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures particularly pointed out in the description and drawings. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the universal frame for pressing automotive roof parts according to this utility model;

[0021] Figure 2 This is another perspective view of the universal frame for pressing automotive roof parts in this utility model;

[0022] Figure 3 This is a partial schematic diagram of the limiting structure between the mounting frame and the workbench in this utility model;

[0023] Figure 4 This is a schematic diagram of the connection structure between the mounting frame, the flipping frame, and the top plate in this utility model;

[0024] Figure 5 This is another schematic diagram of the connection structure between the mounting frame, the flipping frame, and the top plate in this utility model;

[0025] Figure 6 for Figure 4 A partial schematic diagram of the middle structure;

[0026] Figure 7 This is a schematic diagram of the structure of the tilting frame in this utility model when it rotates to the loading position.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Top plate; 2. Mounting bracket; 3. Tilting bracket; 4. Workbench; 5. Mounting slot; 6. Lower mold mounting base; 7. Positioning block; 8. Guide slide rail; 9. Guide slider; 10. Drive motor; 11. Drive gear; 12. Rack; 13. Positioning guide rail; 14. Positioning bracket; 15. Fixing plate; 16. Hinge seat; 17. Positioning insertion hole; 18. Pin drive cylinder; 19. Tilting drive cylinder; 20. Guide tube; 21. Upper limit block; 22. Guide rod; 23. Lower limit block; 24. Safety support column; 25. Column; 26. Forklift slot. Detailed Implementation

[0029] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0030] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "fixed" and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0031] In the description of this utility model, it should be noted that the terms "upper end", "lower end", "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0033] See Figures 1-7 As shown in the figure, this application discloses a universal frame for pressing automotive roof parts, including a frame. Specifically, the frame includes a rectangular worktable 4, with four columns 25 at both ends of the worktable 4, and a horizontally arranged top plate 1 connected to the top of the eight columns 25. The worktable 4 is provided with a mounting groove 5, and a lower mold mounting seat 6 is detachably installed in the mounting groove 5. The lower mold mounting seat 6 is used to install lower mold cores of various specifications. A positioning block 7 is provided on the bottom of the mounting groove 5, and a positioning hole that cooperates with the positioning block 7 is provided on the bottom of the lower mold mounting seat 6 to limit the position of the lower mold mounting seat 6 on the worktable 4.

[0034] Additionally, a vertically adjustable mounting frame 2 is provided at the upper end of the frame. A lifting drive assembly for driving the mounting frame 2 is provided on the top plate 1 of the frame. Below the mounting frame 2, a parallel tilting frame 3 is provided. This tilting frame 3 is used for the detachable installation of upper mold cores of various specifications. In practical applications, the specifications of the upper mold core match the specifications of the lower mold core for complete replacement. One end of the tilting frame 3 is connected to one end of the mounting frame 2 in a tiltable manner. The mounting frame 2 is also equipped with a tilting drive assembly for driving the tilting frame 3 downwards to the loading position. Specifically, in the initial position, the tilting frame 3 is stored below the mounting frame 2, and the tilting frame 3 is parallel to the mounting frame 2. This position provides the robot arm with more operating space when applying glue to the upper surface of the car roof where parts need to be pressed. When it is necessary to install plastic or metal parts to be pressed, the tilting drive assembly drives the tilting frame 3 to rotate away from the mounting frame 2 until the tilting frame 3 is perpendicular to the mounting frame 2. This position is the loading position. (See Appendix) Figure 7 This angle position makes it convenient for workers or robots to pre-install the plastic or metal parts that need to be pressed onto the corresponding positioning components on the flipping frame 3. After the pre-installation of the pressed parts is completed, the flipping frame 3 reverses and rotates back to the initial position. Finally, the lifting drive component drives the mounting frame 2 to move downward until the plastic or metal parts on each positioning component are pressed and fitted onto the upper surface of the car roof.

[0035] Furthermore, in this embodiment, see Appendix Figure 2 The frame has two guide rails 8 extending vertically along its front and back sides on both sides. Guide sliders 9, which slide and engage with the four guide rails 8, are connected to the four corners of the mounting bracket 2. Preferably, the four guide rails 8 are connected to four uprights 25 located at the left and right ends of the frame, respectively. This means that there are also unused uprights 25 at the front and rear ends of the frame, used only to support the top plate 1. In practical applications, safety light curtains are usually installed on these two front uprights 25 to ensure the safety of the operator. In this embodiment, a switch button is also provided on the front upright 25 at the right end of the frame, and the switch button is electrically connected to each drive component, allowing the operator to start and stop the machine with a single button.

[0036] In this embodiment, see Appendix Figure 4The lifting drive assembly includes a drive motor 10 with dual output shafts. The drive motor 10 has a built-in reducer and two bearing assemblies are provided on the top plate 1. The dual output shafts of the drive motor 10 are rotatably connected to the two bearing assemblies to ensure stable power output. Drive gears 11 are connected to both output ends of the dual output shafts. Two vertically arranged racks 12 are connected to the upper end of the mounting frame 2, and the two racks 12 mesh with the two drive gears 11 respectively. When the drive motor 10 is turned on, it drives the two drive gears 11 to rotate, thereby driving the two racks 12 to rise and fall, ultimately realizing the lifting movement of the mounting frame 2. The drive structure is stable, and the lifting position is accurate and controllable. Furthermore, the use of a motor as a power source is safe, reliable, low-noise, and pollution-free.

[0037] More specifically, in the above structure, see Appendix Figure 6 The outer walls of the two racks 12 are connected to positioning guide rails 13 extending along their axial direction. Positioning frames 14 are provided on the top plate 1 of the frame at positions corresponding to the two racks 12. Positioning sliders that slide with the positioning guide rails 13 are provided on the two positioning frames 14, which effectively ensures the stability of the two racks 12 when they are raised and lowered, and avoids the occurrence of tooth jamming due to skew.

[0038] In this embodiment, see Appendix Figure 4 , 5 In the rotating connection structure between the flipping frame 3 and the mounting frame 2, the front ends of both sides of the flipping frame 3 are connected to vertically arranged fixed plates 15. The front end of the mounting frame 2 is provided with two hinge seats 16, and the upper ends of the two fixed plates 15 are rotatably connected to the corresponding hinge seats 16. The flipping drive assembly is installed on the mounting frame 2, and its drive end is connected to the flipping frame 3 to drive the flipping frame 3 to rotate along the fixed plates 15. The rear ends of both sides of the flipping frame 3 are provided with positioning holes 17. The two ends of the mounting frame 2 are respectively provided with positioning pins and pin drive cylinders 18. When the flipping frame 3 is in a parallel working position, the two pin drive cylinders 18 are used to drive the two positioning pins to insert into the corresponding positioning holes 17 to ensure the stability of the flipping frame 3 structure when it is in use.

[0039] For others, see Appendix Figure 6 and 7 In the above structure, the tilting drive assembly includes two tilting drive cylinders 19. The housings of the two tilting drive cylinders 19 are rotatably connected to the mounting frame 2, and the tilting frame 3 is provided with two fixed seats. The free ends of the piston rods of the two tilting drive cylinders 19 are respectively hinged to the two fixed seats. In this embodiment, the tilting drive cylinder 19 is preferably a pneumatic cylinder. In other embodiments, hydraulic pressure, linear motor, or even a lead screw drive structure can also be used.

[0040] In this embodiment, see Appendix Figure 3Guide tubes 20 and upper limit blocks 21 are also provided on the front and rear sides of the left and right ends of the mounting frame 2. Guide rods 22 that cooperate with each guide tube 20 and lower limit blocks 23 that correspond to each upper limit block 21 are respectively provided on the front and rear sides of the left and right ends of the worktable 4. After the guide tubes 20 and guide rods 22 are set, the accuracy of the pressing position can be ensured during the pressing and mold closing process. When the pressing reaches the limit position, the upper limit block 21 and the lower limit block 23 are used for positioning to avoid excessive pressing stroke of the pressing mechanism and protect the canopy from being crushed.

[0041] Furthermore, in this embodiment, please continue to refer to the appendix. Figure 2 At least one vertically extending safety support column 24 is provided on each of the left and right sides of the frame. Each support column is rotatably connected to the columns 25 on the left and right sides of the frame in the horizontal direction to allow rotation between the working position and the storage position. When the safety support column 24 is in the working position, it is directly below the mounting frame 2 in the vertical direction. This working position mainly refers to the situation when the upper mold core is being repaired or replaced. If the lifting drive component fails and causes the mounting frame 2 to fall abnormally, the support column can support the mounting frame 2 to prevent it from falling further, effectively ensuring the safety of the staff. When the support column is rotated horizontally to the storage position, it is misaligned with the mounting frame 2 in the vertical direction. At this time, the mounting frame 2 can be raised and lowered normally without interfering with it.

[0042] In this embodiment, please continue to refer to the appendix. Figure 1 Two forklift slots extending in the front-rear direction are provided on the lower mold mounting base 6. When it is necessary to replace the lower mold core of different specifications, the lower mold mounting base 6 can be directly removed from the lower base plate by using a forklift. After the entire structure is removed, it is convenient to disassemble the lower mold core and the lower mold mounting base 6, and this operation is safer. After the replacement is completed, it can be inserted and placed back into the mounting slot 5, which is very convenient.

[0043] In the description of this application, the references to "this embodiment" and "some embodiments" refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0044] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A universal frame for pressing automotive roof parts, characterized in that: The system includes a frame, with a vertically adjustable mounting frame (2) at the top. A lifting drive assembly for driving the mounting frame (2) to rise and fall is provided on the top plate (1) of the frame. Below the mounting frame (2) is a parallel rotating frame (3) for detachably mounting various sizes of upper mold cores. One end of the rotating frame (3) is connected to one end of the mounting frame (2) in a vertically rotatable manner. The mounting frame (2) also has a rotating drive assembly for driving the rotating frame (3) to rotate downwards to the loading position. The workbench (4) at the lower end of the frame is provided with an installation groove (5). The installation groove (5) is detachably fitted with a lower mold mounting seat (6) for installing lower mold cores of various specifications. The bottom of the installation groove (5) is provided with a positioning block (7) for limiting the lower mold mounting seat (6). The left and right side walls of the frame are provided with two guide slide rails (8) that are distributed front and back and extend vertically. The four corners of the mounting frame (2) are connected with guide sliders (9) that slide in cooperation with the four guide slide rails (8).

2. The universal frame for pressing automotive roof parts according to claim 1, characterized in that: The lifting drive assembly includes a drive motor (10) with dual output shafts. Both output ends of the dual output shafts are connected to drive gears (11). The upper end of the mounting bracket (2) is connected to two vertically arranged racks (12), and the two racks (12) mesh with the two drive gears (11) respectively.

3. The universal frame for pressing automotive roof parts according to claim 2, characterized in that: The outer walls of the two racks (12) are connected to positioning guide rails (13) extending along their axial direction. Positioning frames (14) are provided on the top plate (1) of the frame at positions corresponding to the two racks (12). Positioning sliders that slide with the positioning guide rails (13) are provided on the two positioning frames (14).

4. The universal frame for pressing automotive roof parts according to claim 1, characterized in that: The front ends of the left and right sides of the flipping frame (3) are connected to vertically arranged fixed plates (15). The front end of the mounting frame (2) is provided with two hinge seats (16). The upper ends of the two fixed plates (15) are respectively rotatably connected to the corresponding hinge seats (16). The rear ends of both sides of the flipping frame (3) are provided with positioning holes (17). The two ends of the mounting frame (2) are respectively provided with positioning pins and pin drive cylinders (18). When the flipping frame (3) is in the parallel working position, the two pin drive cylinders (18) are used to drive the two positioning pins to be inserted into the corresponding positioning holes (17).

5. The universal frame for pressing automotive roof parts according to claim 1 or 4, characterized in that: The flip drive assembly includes two flip drive cylinders (19), the outer shells of the two flip drive cylinders (19) are rotatably connected to the mounting frame (2), and two fixed seats are provided on the flip frame (3). The free ends of the piston rods of the two flip drive cylinders (19) are respectively hinged to the two fixed seats.

6. The universal frame for pressing automotive roof parts according to claim 1, characterized in that: The mounting bracket (2) is provided with guide tubes (20) and upper limit blocks (21) on the front and back sides of the left and right ends. The worktable (4) is provided with guide rods (22) that cooperate with each guide tube (20) and lower limit blocks (23) that correspond to each upper limit block (21) on the front and back sides of the left and right ends.

7. The universal frame for pressing automotive roof parts according to claim 1 or 6, characterized in that: At least one vertically extending safety support column (24) is provided on each of the left and right sides of the frame. Each safety support column (24) is rotatably connected to the upright column (25) on the left and right sides of the frame in the horizontal direction to achieve rotation between the working position and the storage position. When the safety support column (24) is in the working position, it is located directly below the mounting frame (2) in the vertical direction. When the safety support column (24) is in the storage position, it is offset from the mounting frame (2) in the vertical direction.

8. The universal frame for pressing automotive roof parts according to claim 1, characterized in that: The lower mold mounting base (6) is provided with two forklift slots (26) extending in the front-rear direction.

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