An inner panel assembly fixing structure and mold

Abstract

This invention relates to an inner panel assembly fixing structure and mold, including a transmission mechanism, one end of which is fixed to the upper mold base of the upper snap-fit ​​mold, and the transmission mechanism passing through the pressure plate of the upper snap-fit ​​mold; and a rocker arm snap-fit ​​mechanism, one end of which is connected to the other end of the transmission mechanism, and the other end of which presses the inner panel assembly against the transmission mechanism. This invention achieves the fixing of the inner panel assembly on the snap-fit ​​mold through the transmission mechanism and the rocker arm snap-fit ​​mechanism, and adds vertical positioning within the mold, making the positioning more accurate during part processing, ensuring the stability of part processing, and thus ensuring the processing accuracy of the part.

Description

Technical Field

[0001] This invention relates to the field of automotive mold technology, specifically to an inner panel assembly fixing structure, a snap-fit ​​upper mold, and a snap-fit ​​mold. Background Technology

[0002] Among vehicle parts, there are a large number of stamped parts; the production of stamped parts requires the use of molds for forming, shaping, trimming, and other processes. Currently, a four-door and two-hood snap-fit ​​mold is commonly used as the standard production mold.

[0003] Traditional four-door, two-cover snap-fit ​​molds typically use fixed stop blocks and locating pins to achieve positioning in the X (horizontal) and Y (vertical) directions, but lack positioning in the Z (vertical) direction. This results in a lack of positioning during part processing, causing slight movement in the Z direction during vertical movement, leading to poor part processing stability and reduced machining accuracy. Summary of the Invention

[0004] One objective of this invention is to provide an inner plate assembly fixing structure to solve the problem in the prior art where the mold lacks vertical positioning, resulting in poor stability and reduced machining accuracy of the parts; a second objective is to provide a snap-fit ​​upper mold; and a third objective is to provide a snap-fit ​​mold.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] An inner panel assembly fixing structure is provided, wherein the inner panel assembly is located within an upper snap-fit ​​mold, and the inner panel assembly fixing structure includes:

[0007] A transmission mechanism, one end of which is fixed on the upper mold base of the upper snap-fit ​​mold, and the transmission mechanism passes through the pressure plate of the upper snap-fit ​​mold;

[0008] A rocker arm fastening mechanism, one end of which is connected to the other end of a transmission mechanism, and the other end of which presses against the inner plate assembly under the action of the transmission mechanism.

[0009] Furthermore, the transmission mechanism includes:

[0010] A transmission assembly, one end of which is connected to the upper mold base of the upper locking mold, and the other end of which is connected to the rocker arm locking mechanism;

[0011] A limiting component, connected to the transmission component, is used to limit the movement of the transmission component.

[0012] Furthermore, the transmission assembly includes:

[0013] A nitrogen spring, one end of which is fixed to the upper mold base of the upper locking mold;

[0014] A force transmission rod, one end of which is connected to the top rod end of the nitrogen spring, and the other end of which is connected to the rocker arm fastening mechanism.

[0015] Furthermore, the limiting component includes:

[0016] The limiting block is located on the pressure plate and is connected to the transmission assembly.

[0017] Furthermore, the transmission mechanism also includes:

[0018] A reset component, located between the limiting component and the transmission component, is used to reset the transmission component.

[0019] Furthermore, the reset component includes:

[0020] A helical cylindrical spring is located between the limiting component and the transmission component.

[0021] Furthermore, the rocker arm engaging mechanism includes:

[0022] A fixing block is fixedly connected to the pressure plate; a rotating pin is provided on the fixing block.

[0023] The rocker arm body is rotatably connected to the rotating pin;

[0024] The clamping block is fixedly connected to the rocker arm;

[0025] The support block is located on the same side of the pressure plate as the fixing block;

[0026] When the clamping block contacts the support block, the clamping block fixes the inner plate assembly through the support block.

[0027] Furthermore, the clamping block and the rocker arm body are connected by welding to form a single unit.

[0028] A snap-fit ​​upper mold includes an inner panel assembly fixing structure as described above, the inner panel assembly fixing structure being used to fix the inner panel assembly.

[0029] A snap-fit ​​mold includes a lower snap-fit ​​mold and an upper snap-fit ​​mold as described above, wherein the lower snap-fit ​​mold and the upper snap-fit ​​mold complete the corresponding process when pressed together.

[0030] The beneficial effects of this invention are:

[0031] (1) In this embodiment of the invention, one end of a transmission mechanism is fixed to the upper mold base of the upper snap-fit ​​mold, and the transmission mechanism passes through the pressure plate of the upper snap-fit ​​mold; one end of a rocker arm snap-fit ​​mechanism is connected to the other end of the transmission mechanism, and the other end of the rocker arm snap-fit ​​mechanism presses the inner plate assembly under the action of the transmission mechanism. Through the transmission mechanism and the rocker arm snap-fit ​​mechanism on the snap-fit ​​mold, the inner plate assembly is fixed, and vertical positioning is added in the mold, making the positioning more accurate during part processing, ensuring the stability of part processing, and thus ensuring the processing accuracy of the part. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of an embodiment of the inner plate assembly fixing structure of the present invention;

[0033] Figure 2 This is a schematic diagram of the transmission mechanism in an embodiment of the inner plate assembly fixing structure of the present invention;

[0034] Figure 3 This is a schematic diagram of the rocker arm body and clamping block in an embodiment of the inner plate assembly fixing structure of the present invention.

[0035] Among them, 1-upper mold base, 2-nitrogen spring, 3-spiral cylindrical spring, 4-limiting block, 5-force transmission rod, 6-rocker arm body, 7-clamping block, 8-support block, 9-fixing block, 10-rotating pin, 11-pressure plate, 100-transmission mechanism, 110-transmission assembly, 120-limiting assembly, 130-reset assembly, 200-rocker arm fastening mechanism. Detailed Implementation

[0036] The embodiments of the present invention will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention and not for limiting the scope of protection of the present invention.

[0037] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0038] Reference Figure 1This invention provides an inner panel assembly fixing structure, wherein the inner panel assembly is located within an upper snap-fit ​​mold, and the inner panel assembly fixing structure includes:

[0039] A transmission mechanism 100, one end of which is fixed on the upper mold base 1 of the upper snap-fit ​​mold, and the transmission mechanism 100 passes through the pressure plate 11 of the upper snap-fit ​​mold;

[0040] A rocker arm fastening mechanism 200 is provided, one end of which is connected to the other end of the transmission mechanism 100, and the other end of the rocker arm fastening mechanism 200 is pressed against the inner plate assembly under the action of the transmission mechanism 100.

[0041] In this embodiment of the invention, the internal assembly fixing structure includes two components: a transmission mechanism 100 and a rocker arm fastening mechanism 200. One end of the transmission mechanism 100 is fixed to the upper mold base 1 of the upper fastening mold. Specifically, one end of the transmission mechanism 100 abuts against the upper mold base 1 of the upper fastening mold, and the upper mold base 1 maintains a fixed connection with one end of the transmission mechanism 100 through its weight. Furthermore, the transmission mechanism 100 penetrates the pressure plate 11 of the upper fastening mold, allowing the transmission structure to extend below the pressure plate 11 for direct connection with the rocker arm fastening mechanism 200.

[0042] One end of the rocker arm engaging mechanism 200 is connected to the transmission mechanism 100 and receives the thrust transmitted by the transmission mechanism 100. The other end of the rocker arm engaging mechanism 200 acts on the internal assembly. Driven by the transmission mechanism 100, the other end of the rocker arm engaging mechanism 200 approaches and abuts against the inner panel assembly, so that the other end of the rocker arm engaging mechanism 200 presses the inner panel assembly to fix and position the inner panel assembly.

[0043] In this embodiment of the invention, one end of a transmission mechanism 100 is fixed to the upper mold base 1 of the upper snap-fit ​​mold, and the transmission mechanism 100 passes through the pressure plate 11 of the upper snap-fit ​​mold. One end of a rocker arm snap-fit ​​mechanism 200 is connected to the other end of the transmission mechanism 100, and the other end of the rocker arm snap-fit ​​mechanism 200 presses the inner plate assembly under the action of the transmission mechanism 100. Through the transmission mechanism 100 and the rocker arm snap-fit ​​mechanism 200 on the snap-fit ​​mold, the inner plate assembly is fixed, and vertical positioning is added within the mold, making the positioning more accurate during part processing, ensuring the stability of part processing, and thus ensuring the processing accuracy of the part.

[0044] Reference Figure 2 In an optional embodiment of the present invention, the transmission mechanism 100 includes:

[0045] Transmission assembly 110, one end of which is connected to the upper mold base 1 of the upper locking mold, and the other end of which is connected to the rocker arm locking mechanism 200;

[0046] The limiting component 120 is connected to the transmission component 110 and is used to limit the movement of the transmission component 110.

[0047] In this embodiment of the invention, the transmission structure may consist of a transmission component 110 and a limiting component 120. One end of the transmission component 110 is connected to the upper mold base 1 of the upper locking mold; specifically, the connection between the transmission component 110 and the upper mold base 1 can be a fixed connection. The other end of the transmission component 110 is connected to the rocker arm locking structure. The transmission component 110 converts the gravity of the upper mold of the locking mold when it descends and transmits it to the rocker arm locking structure, so that the rocker arm locking structure can fix the inner plate assembly.

[0048] The limiting component 120 is connected to the transmission component 110. During the movement of the transmission component 110, it restricts the movement of the transmission component 110 to prevent excessive movement of the transmission component 110, which could lead to engagement failure.

[0049] Furthermore, the transmission assembly 110 includes:

[0050] Nitrogen spring 2, one end of the mold spring is fixed on the upper mold base 1 of the upper locking mold;

[0051] The force transmission rod 5 has one end connected to the top rod end of the nitrogen spring 2, and the other end connected to the rocker arm fastening mechanism 200.

[0052] Nitrogen spring 2 is a spring that uses nitrogen as the compression medium. It has advantages such as small size, light weight, good compressibility, corrosion resistance, high temperature resistance, and no pollution. The working principle of nitrogen spring 2 is to utilize the excellent compressibility of nitrogen to achieve the compression and rebound of the spring. In nitrogen spring 2, nitrogen is filled into a sealed container, and a piston or piston rod is installed inside the container. The compression and rebound of the spring are achieved by adjusting the position and pressure of the piston. When nitrogen spring 2 is subjected to an external force, the piston moves inward, compressing the nitrogen and generating a reaction force. When the external force disappears, the nitrogen automatically rebounds, causing the spring to return to its original shape. Due to the excellent compressibility of nitrogen, nitrogen spring 2 has excellent rebound performance, can withstand large external forces, and can also maintain the shape and elasticity of the spring well. One end of nitrogen spring 2 is fixed to the upper mold base 1 of the upper clamping mold and connected to it. The other end of nitrogen spring 2 is connected to the force transmission rod 5, transmitting the elastic force to the force transmission rod 5.

[0053] One end of the force transmission rod 5 is connected to the top rod end of the nitrogen spring 2, and the other end is connected to the rocker arm fastening structure. The force transmission rod 5 moves under the action of the nitrogen spring 2, thereby driving the rocker arm fastening structure to move.

[0054] Furthermore, the limiting component 120 includes:

[0055] The limiting block 4 is located on the pressure plate 11 and is connected to the transmission assembly 110.

[0056] In practical applications, the limiting component 120 can specifically be a limiting block 4, which is located on the pressure plate 11, specifically fixed on the pressure plate 11, and the limiting block 4 is connected to the transmission component 110 to limit the transmission component 110.

[0057] In an optional embodiment of the present invention, the transmission mechanism 100 further includes:

[0058] The reset component 130 is located between the limiting component 120 and the transmission component 110, and is used to reset the transmission component 110.

[0059] In this embodiment of the invention, the transmission mechanism 100 may further include a reset component 130 based on the above embodiments. The reset component 130 is located between the limiting component 120 and the transmission component 110. When the transmission mechanism 100 moves, it changes accordingly to store force. After the transmission mechanism 100 is in position, and during reset, it releases the stored force to the transmission component 110 to reset the transmission component 110.

[0060] Furthermore, the reset assembly 130 includes:

[0061] A helical cylindrical spring 3 is located between the limiting component 120 and the transmission component 110.

[0062] In practical applications, the reset component 130 can specifically be a helical cylindrical spring 3, which is located between the limiting component 120 and the transmission component 110. When the transmission mechanism 100 moves, it changes shape accordingly to store force. After the transmission mechanism 100 is in position, it releases the elastic force to the transmission component 110 during reset so that the transmission component 110 is reset.

[0063] Reference Figure 3 In an optional embodiment of the present invention, the rocker arm engaging mechanism 200 includes:

[0064] The fixing block 9 is fixedly connected to the pressure plate 11; the fixing block 9 is provided with a rotating pin 10.

[0065] The rocker arm body 6 is rotatably connected to the rotating pin 10;

[0066] Clamping block 7 is fixedly connected to the rocker arm;

[0067] The support block 8 and the fixing block 9 are located on the same side of the pressure plate 11;

[0068] When the clamping block 7 contacts the support block 8, the clamping block 7 fixes the inner plate assembly through the support block 8.

[0069] In this embodiment of the invention, the rocker arm fastening mechanism 200 may include a fixing block 9, a rocker arm body 6, a clamping block 7, and a support block 8. The fixing block 9 is fixed to the pressure plate 11. Specifically, the fixing block 9 may be fixed to the side of the pressure plate 11 near the lower die. A rotating pin 10 is provided on the fixing block 9, and the rotating pin 10 is fixed to the fixing block 9.

[0070] The rocker arm body 6 is provided with a through hole, through which the rocker arm body 6 is rotatably connected to the rotating pin 10, that is, the rocker arm body 6 can rotate around the rotating pin 10. The through hole and the rotating pin 10 are clearance fit to allow the rocker arm body 6 to rotate smoothly around the rotating pin 10.

[0071] The clamping block 7 is fixedly connected to the rocker arm body 6, and the clamping block 7 forms a certain angle with the rocker arm body 6. When the rocker arm body 6 moves, the clamping block 7 moves accordingly.

[0072] The support block 8 is located on the same side of the pressure plate 11 as the fixing block 9, that is, the support block 8 is located on the side of the pressure plate 11 near the lower mold. The support block 8 is fixed on the pressure plate 11. When the clamping block 7 contacts it, the clamping block 7 applies a force to it. This force causes the support block 8 to support and fix the inner plate assembly, so as to position and fix the inner plate assembly.

[0073] Furthermore, the clamping block 7 and the rocker arm body 6 are connected by welding to form an integral unit.

[0074] In practical applications, the clamping block 7 is welded to the rocker arm body 6 to form an integral unit, so that the clamping block 7 can directly follow the rotation when the rocker arm rotates.

[0075] To enable those skilled in the art to clearly understand the embodiments of the present invention, the working process of the inner panel assembly fixing structure is described below:

[0076] Nitrogen spring 2 is installed on the upper mold base 1 of the snap-fit ​​mold. One end of the push rod of nitrogen spring 2 is in contact with the force transmission rod 5. The force transmission rod 5 is connected to the rocker arm body 6 by screws. The rocker arm has a sliding groove. The rocker arm body 6 is welded together with the clamping block 7. The rocker arm body 6 can rotate around the rotating pin 10. The rotating pin 10 is installed on the fixed block 9. The fixed block 9 is installed on the pressure plate 11 by screws.

[0077] When the press closes downwards, under the force of the nitrogen spring 2, the force transmission rod 5 moves downwards and compresses the spiral cylindrical spring 3. The rocker arm body 6 and the clamping block 7 rotate around the fixed pin. When the force transmission rod 5 contacts the limit block 4, the clamping block moves into place. Under the combined action of the support block 8 and the fixed block 9, the inner plate assembly is clamped. Then the pressure plate 11 moves into place. As the press moves further downwards, the parts complete the fastening action.

[0078] When the press opens upwards, the nitrogen spring 2 gradually returns to its original length, and the force transmission rod 5 moves upwards under the recovery of the helical cylindrical spring 3, separating from the part and returning to its original state. The opening process and the closing process are the reverse of each other.

[0079] This invention also discloses a snap-fit ​​upper mold, including the inner plate assembly fixing structure as described above, which is used to fix the inner plate assembly.

[0080] In this embodiment of the invention, the upper die of the fastening mold is provided with the inner plate assembly fixing structure of the above embodiment. When the upper die of the fastening mold moves downward, the inner plate assembly fixing structure gradually fixes the inner assembly. After the inner plate assembly fixing structure is in place, the inner plate assembly is completely fixed, thereby achieving the vertical positioning of the inner plate assembly. Combined with other fixed stop blocks and positioning pins in the upper die, horizontal and vertical positioning is achieved, and the inner plate assembly is fully positioned. This makes the positioning more accurate during part processing, ensures the stability of part processing, and thus ensures the processing accuracy of the part.

[0081] This invention also discloses a snap-fit ​​mold, characterized in that it includes a lower snap-fit ​​mold and an upper snap-fit ​​mold as described above, wherein the lower snap-fit ​​mold and the upper snap-fit ​​mold complete the corresponding process when pressed together.

[0082] In this embodiment of the invention, the upper die of the snap-fit ​​die is the upper half of the entire die set. A reverse-configuration die is mounted on the upper die portion, and a forward-configuration die is mounted on the lower die portion. The lower die of the snap-fit ​​die is the lower half of the entire die set, i.e., the die portion mounted on the press worktable. The upper die of the snap-fit ​​die is fixed to the inner plate assembly using the inner plate assembly fixing structure described in the above embodiment.

[0083] The lower and upper snap-fit ​​dies are mounted and fixed on the two tables of the stamping machine. When the stamping machine moves, the lower and upper snap-fit ​​dies move closer together and snap into place. The material between the lower and upper snap-fit ​​dies undergoes corresponding processing to complete the material processing and form the part. The inner plate assembly is fixed in the vertical direction, and combined with other fixed stops and locating pins in the upper die, it achieves horizontal and vertical positioning. This comprehensive positioning of the inner plate assembly ensures more accurate positioning during part processing, guarantees the stability of part processing, and ultimately ensures the machining precision of the part.

[0084] The above embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention.

Claims

1. A fixing structure for an inner panel assembly, wherein the inner panel assembly is located within an upper snap-fit ​​mold, characterized in that, The inner panel assembly fixing structure includes: A transmission mechanism, one end of which is fixed on the upper mold base of the upper snap-fit ​​mold, and the transmission mechanism passes through the pressure plate of the upper snap-fit ​​mold; A rocker arm fastening mechanism, one end of which is connected to the other end of a transmission mechanism, and the other end of which presses against the inner plate assembly under the action of the transmission mechanism; The transmission mechanism includes: A transmission assembly, one end of which is connected to the upper mold base of the upper locking mold, and the other end of which is connected to the rocker arm locking mechanism; A limiting component, connected to the transmission component, is used to limit the movement of the transmission component; The rocker arm locking mechanism includes: A fixing block is fixedly connected to the pressure plate; a rotating pin is provided on the fixing block. The rocker arm body is rotatably connected to the rotating pin; The clamping block is fixedly connected to the rocker arm; The support block is located on the same side of the pressure plate as the fixing block; When the clamping block contacts the support block, the clamping block fixes the inner plate assembly through the support block; the clamping block and the rocker arm body are connected by welding to form a whole.

2. The inner panel assembly fixing structure according to claim 1, characterized in that, The transmission assembly includes: A nitrogen spring, one end of which is fixed to the upper mold base of the upper locking mold; A force transmission rod, one end of which is connected to the top rod end of the nitrogen spring, and the other end of which is connected to the rocker arm fastening mechanism.

3. The inner panel assembly fixing structure according to claim 1, characterized in that, The limiting component includes: The limiting block is located on the pressure plate and is connected to the transmission assembly.

4. The inner panel assembly fixing structure according to claim 2, characterized in that, The transmission mechanism also includes: A reset component, located between the limiting component and the transmission component, is used to reset the transmission component.

5. The inner panel assembly fixing structure according to claim 4, characterized in that, The reset component includes: A helical cylindrical spring is located between the limiting component and the transmission component.

6. A snap-fit ​​upper mold, characterized in that, Includes the inner panel assembly fixing structure as described in any one of claims 1-5, wherein the inner panel assembly fixing structure is used to fix the inner panel assembly.

7. A snap-fit ​​mold, characterized in that, It includes a lower mold for fastening and an upper mold for fastening as described in claim 6, wherein the lower mold for fastening and the upper mold for fastening complete the corresponding process when they are pressed together.

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