A multi-process-in-one composite mold

Abstract

The application discloses a multi-process integrated composite die, comprising: an upper die assembly, a lower die assembly and a limiting mechanism; the limiting mechanism has an initial state and a pushing state; a hole flanging mechanism and a plurality of inserts are arranged between the upper die assembly and the lower die assembly; the upper die assembly comprises an upper die seat and a pressing device, wherein the pressing device is slidably arranged in the upper die seat. According to the technical scheme of the application, the limiting mechanism can be arranged in the initial state to realize the flanging and hole flanging processes, and the limiting mechanism can be arranged in the pushing state to realize the flanging, hole flanging and cutting processes, so that the double selection characteristic is achieved. The overall structure of the die is simple, the die process can be selectively switched by the limiting mechanism, the hole flanging or flanging process of the automobile part can be completed at one time, the cutting process can also be completed, a large amount of time, design and manufacturing cost are saved, the quality of the product is improved, and the market competition is more favorable.

Description

Technical Field

[0001] This invention relates to the field of automotive body panel mold design, specifically to a composite mold that integrates multiple processes. Background Technology

[0002] Existing automotive parts have relatively complex structures and typically require multiple processing steps. Therefore, many manufacturers process automotive parts using multiple sets of molds separately. This not only wastes a significant amount of time and money, but also increases manufacturing and R&D costs due to the design and manufacture of multiple molds. Furthermore, after parts have been tooled and processed using multiple molds, processing errors gradually accumulate, reducing the precision of the parts, making it difficult to guarantee product quality, and hindering market competitiveness.

[0003] Even though some manufacturers have adopted composite mold structures that integrate multiple processes, they can usually only complete the processes of turning holes or flanging parts in one go by moving the mold up and down. When automotive parts need to be cut, a new set of molds adapted to the parts needs to be made to achieve the cutting process, which inevitably increases the additional material and labor costs. Summary of the Invention

[0004] This invention provides a composite mold that integrates multiple processes, overcoming the shortcomings of the prior art, and adopts the following technical solution:

[0005] A multi-process integrated composite mold includes: an upper mold assembly, a lower mold assembly, and a limiting mechanism; the limiting mechanism has an initial state and a pushing state; a flipping mechanism and several inserts are provided between the upper mold assembly and the lower mold assembly; the upper mold assembly includes an upper mold base and a pressing device, wherein the pressing device is slidably disposed within the upper mold base; the lower mold assembly includes a lower mold base and a supporting device, wherein the supporting device includes a first supporting device and a second supporting device, the first supporting device and the second supporting device being slidably disposed at the same height within the lower mold base; when the upper mold base is relative to the lower mold assembly... When the mold base moves downward, the upper mold assembly drives the support device to slide downward relative to the lower mold base, so as to complete the flanging and flanging of the part through the flanging mechanism and several inserts; when the limiting mechanism switches from the initial state to the pushing state, and the upper mold base moves downward relative to the lower mold base, the limiting mechanism constrains the first support device and the pressure device, so that the upper mold base slides downward relative to the pressure device, driving the second support device to move downward relative to the first support device, so that the inserts between the second support device and the first support device form a misaligned scissor difference to cut the part.

[0006] Preferably, it further includes a first guiding device and a first guide post, the first guiding device and the first guide post being fixed in the upper mold base, and the pressing device being slidably disposed in the upper mold base through the first guide post, so as to provide thrust to the pressing device through the first guiding device.

[0007] Preferably, it also includes a positioning pin, which is inserted into the presser and the upper mold base to constrain the height of the presser and prevent the presser from disengaging from the upper mold base when the first guiding device provides thrust to the presser.

[0008] Preferably, it further includes a second guiding device and a second guide post, the second guiding device and the second guide post being fixedly disposed in the lower mold base, and the first support and the second support being slidably disposed in the lower mold base through the second guide post, so as to provide thrust to the first support and the second support through the second guiding device.

[0009] Preferably, it also includes several limiting rods, which are respectively inserted into the lower mold base, the first support device and the second support device to limit the height of the first support device and the second support device.

[0010] Preferably, the first guiding device is a nitrogen spring, and the second guiding device is a regular spring. The compressive deformation force of the nitrogen spring is greater than that of the regular spring, so as to prevent the nitrogen spring from deforming when the upper mold assembly drives the support device to slide downward relative to the lower mold base, causing slippage between the upper mold base and the pressure device.

[0011] Preferably, it further includes a connecting plate, wherein the first support is disposed on top of the second support, and the connecting plate is disposed between the first support and the second support, so as to prevent a height difference between the first support and the second support through the connecting plate.

[0012] Preferably, the limiting mechanism includes a pad and a power source, the output end of which is fixed to the pad to control the pad to switch back and forth between the initial state and the pushing state.

[0013] Preferably, the pad and the power source are disposed within the lower mold base; when the pad is in the initial state, the pad and the support device are always in a state of mutual avoidance; when the pad is in the pushing state and the upper mold base moves downward relative to the lower mold base, the first support device will abut against the pad to constrain the first support device and the pressure device, so that the upper mold base can slide downward relative to the pressure device.

[0014] Preferably, the hole-flipping mechanism includes a hole-flipping punch and a hole-flipping die, the hole-flipping punch is fixed to the lower die base, the hole-flipping die is fixed to the pressure device, and the inserts are respectively disposed on the upper die assembly and the support device.

[0015] As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) The technical solution of the present invention is provided with a first support and a second support for realizing the cutting process, a number of inserts for flanging, and a flanging mechanism for realizing the flanging process; at the same time, a limiting mechanism is also provided, which can be set in the initial state to realize the flanging and flanging process according to the processing selection needs of automotive parts, and set in the pushing state to realize the flanging, flanging and cutting process, which has the characteristics of dual selection; not only is the overall structure of the mold simple, but it can also selectively switch the mold process through the limiting mechanism, and complete the flanging or flanging process of automotive parts at one time, while also completing the cutting process, saving a lot of time, design and manufacturing costs, improving product quality, and being more competitive in the market.

[0017] (2) The pressing device is slidably placed in the upper mold base. The first guiding device in the upper mold base provides a thrust to the pressing device, so that the pressing device can always be pushed up relative to the upper mold base to ensure that the pressing device will not be displaced relative to the upper mold base when the flanging and hole-making processes are performed. At the same time, the first guiding device ensures that there is a relative sliding effect between the upper mold base and the pressing device, so that when the flanging, hole-making and cutting processes are performed, the upper mold base can slide down relative to the pressing device, driving the second support device to move relative to the first support device.

[0018] (3) Insert the positioning pins into the presser and the upper mold base to limit the height of the presser by means of the positioning pins, so as to prevent the presser from being pushed out of the upper mold base when the first guide device provides thrust to the presser, causing the presser to detach from the upper mold base.

[0019] (4) Similarly, the first and second support pieces are slidably placed in the lower mold base. The second guide device in the lower mold base provides a pushing force to the first and second support pieces, so that the first and second support pieces can always be kept in the pushed-up state, ensuring that the first and second support pieces will not move down by themselves before the flanging and hole-flanging processes are completed. At the same time, it also provides a reset effect for the first and second support pieces, so as to facilitate the next work.

[0020] (5) Insert the limiting rods into the lower mold base, the first support and the second support respectively to limit the height of the first support and the second support respectively. At the same time, the assembly effect of the limiting rods can ensure that the first support and the second support can be kept at the same height.

[0021] (6) The first guiding device is a nitrogen spring and the second guiding device is a regular spring. When subjected to the same pressure, the nitrogen spring is not easy to deform and compress, while the regular spring is easy to compress and deform under pressure. Therefore, when the compressive deformation force of the nitrogen spring is greater than that of the regular spring, it can prevent the nitrogen spring from compressing and deforming when the upper mold assembly drives the entire support device to work relative to the lower mold base. This would cause slippage between the upper mold base and the pressure device, making the flanging and hole-making processes impossible to achieve.

[0022] (7) During assembly, the first support is placed on top of the second support to prevent interference between the first support and the second support when the upper mold base drives the second support to move downward relative to the first support. This ensures that the insert between the second support and the first support can form a misaligned shear difference to cut the part.

[0023] (8) During the movement and displacement of the first and second support devices, their connection points will inevitably collide with each other. In order to protect the quality of the first and second support devices and improve their service life, a certain assembly gap is provided between them. Therefore, during assembly, a connecting plate is placed on the assembly gap between the first and second support devices. The height difference between the first and second support devices is adjusted by the connecting plate to ensure that the first and second support devices are at the same height. At the same time, it can also protect the first and second support devices.

[0024] (9) The pad is switched back and forth between the initial state and the pushing state by the power source component, so as to save some labor costs and improve the automation rate.

[0025] (10) Placing the power source and pad inside the lower mold base not only saves some structural space, but also ensures the overall aesthetics of the mold.

[0026] (11) When the pad is in the initial state, the pad and the support device always avoid each other to ensure that the second support will not move relative to the first support to achieve the cutting work during the flanging and hole-making process of the part; when the pad is in the pushing position, the first support will be constrained and fixed by the pad during the downward process, so as to facilitate the subsequent cutting work with the second support; therefore, the processing selection of parts can be achieved through the state change of the pad, the structure is simple and the assembly is relatively convenient. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0029] Figure 2 for Figure 1 A magnified view of a portion at point A shown;

[0030] Figure 3 This is an exploded view of an embodiment of the present invention;

[0031] Figure 4 This is a schematic diagram of the upper mold base in an embodiment of the present invention;

[0032] Figure 5 This is a schematic diagram of the structure of the pressure device according to an embodiment of the present invention;

[0033] Figure 6 This is a schematic diagram of the assembly of the mold base and the pressure device in an embodiment of the present invention;

[0034] Figure 7 for Figure 6 Overall sectional view;

[0035] Figure 8 This is a schematic diagram of the structure of the mold base in an embodiment of the present invention;

[0036] Figure 9 for Figure 8 A magnified view of a portion at point B shown;

[0037] Figure 10 This is a schematic diagram of the structure of the first and second component carriers according to an embodiment of the present invention;

[0038] Figure 11 This is an assembly diagram of the first support device, the second support device, the lower mold base, and the automotive parts according to an embodiment of the present invention.

[0039] Figure 12 This is a cross-sectional view of the assembly state of the first support and the second support connecting plate according to an embodiment of the present invention;

[0040] Figure 13 This is an assembly diagram of the first support device, the second support device, and the connecting plate according to an embodiment of the present invention;

[0041] Figure 14 This is a schematic diagram of the pad in its initial state according to an embodiment of the present invention;

[0042] Figure 15 This is a schematic diagram of the pad in the pushing state according to an embodiment of the present invention;

[0043] Figure 16 This is a schematic diagram of the structure of the driving block abutting against the inclined wedge sliding block according to an embodiment of the present invention;

[0044] Figure 17 This is a schematic diagram of the structure of the driving block, the wedge sliding block, the flipping punch, and the base in an embodiment of the present invention;

[0045] Figure 18 This is a schematic diagram of the structure during the flanging process according to an embodiment of the present invention;

[0046] Figure 19 for Figure 18 A magnified view of a portion at point C shown;

[0047] Figure 20 This is a schematic diagram of the structure during the cutting process in an embodiment of the present invention;

[0048] Figure 21 for Figure 20 A magnified view of a portion at point D shown.

[0049] The reference numerals in the attached drawings are explained as follows: 101, upper mold base; 102, pressing device; 1021, limiting groove; 201, lower mold base; 202, supporting device; 2021, first supporting device; 2022, second supporting device; 31, pad; 311, stroke hole; 32, cylinder; 321, clamping plate; 33, control valve; 41, flipping punch; 42, flipping die; 43, drive block; 441, wedge sliding block; 442, base; 5, insert; 61, nitrogen spring; 62, ordinary spring; 71, first guide post; 72, second guide post; 8, positioning pin; 9, limiting rod; 10, connecting plate; 11, wear-resistant plate; 12, positioning part; 13, positioning frame; 14, limiting seat; 141, limiting block; 15, pointer; 16, automotive part. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are preferred embodiments of the present invention and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0051] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and accompanying drawings of this invention is for distinguishing different objects and not for describing a specific order.

[0052] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this invention, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing the invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific scope of protection of this invention.

[0053] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this invention should be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection by other means or components.

[0054] In the claims, description and accompanying drawings of this invention, the terms "comprising," "having," and variations thereof are used to mean "including but not limited to."

[0055] Please see Figures 1 to 21 .

[0056] This embodiment provides a multi-process integrated composite mold, including an upper mold assembly, a lower mold base 201 assembly, a limiting mechanism, a first guiding device, and a first guide post 71. The upper mold assembly includes an upper mold base 101 and a pressing device 102. The first guiding device is a nitrogen spring 61, and multiple nitrogen springs 61 are provided, each fixedly installed inside the bottom side of the upper mold base 101. Four first guide posts 71 are provided, each fixedly installed inside the upper mold base 101 to correspond to multiple through holes provided on the pressing device 102. The pressing device 102 slides in the upper mold base 101 through the through holes and the first guide posts 71 and contacts and assembles with the nitrogen springs 61, so that the multiple nitrogen springs 61 can provide a balanced upward supporting thrust for the pressing device 102.

[0057] See Figures 4 to 6 In this embodiment, both the upper mold base 101 and the presser 102 are provided with multiple wear-resistant plates 11, so that when the presser 102 slides inside the upper mold base 101 through the through hole and the first guide post 71, the wear-resistant plates 11 of the upper mold base 101 and the wear-resistant plates 11 of the presser 102 rub against each other to ensure that the presser 102 and the upper mold base 101 can maintain stable movement when they make relative movements, without causing any tilting or deviation.

[0058] See Figures 4 to 7In this embodiment, a positioning pin 8 is also included; the upper mold base 101 is provided with a through hole for inserting the positioning pin 8, and the pressing device 102 is provided with a limiting groove 1021 for assembling with the positioning pin 8. The limiting groove 1021 is in the shape of an "annular guide rail". When the pressing device 102 is slidably placed in the upper mold base 101, the nitrogen spring 61 provides a thrust to the pressing device 102, and the lack of a positioning structure between the pressing device 102 and the upper mold base 101 will cause the pressing device 102 to move during the process. The lower mold base 201 is disengaged, so the positioning pin 8 is inserted into the upper mold base 101 and assembled with the limiting groove 1021 on the presser 102 to limit the displacement stroke of the presser 102 relative to the upper mold base 101. This allows the positioning pin 8 to directly abut against the inner side of the limiting groove 1021 when the presser 102 is displaced relative to the upper mold base 101, thus achieving a restraining effect. It also ensures that the presser 102 and the upper mold base 101 have a certain displacement stroke through the limiting groove 1021.

[0059] See Figure 8 and Figure 10 In this embodiment, a second guiding device and a second guide post 72 are also included. The lower mold assembly includes a lower mold base 201 and a support device 202, wherein the support device 202 is divided into a first support 2021 and a second support 2022. The second guiding device is a common spring 62, and multiple common springs 62 are provided, all of which are fixedly installed in the lower mold base 201. Multiple second guide posts 72 are provided, all of which are fixedly installed in the lower mold base 201, corresponding to multiple through holes provided on the first support 2021, so that the first support 2021 can slide in the lower mold base 201 through the through holes and the second guide post 72 and be assembled with the common springs 62, so that the multiple common springs 62 can provide a balanced upward support thrust for the first support 2021.

[0060] See Figures 11 to 12In this embodiment, a connecting plate 10 is also included. Before the first support 2021 is slidably placed inside the lower mold base 201, the second support 2022 is first installed on the ordinary spring 62 of the lower mold base 201. Multiple ordinary springs 62 provide thrust to the second support 2022. Then, the first support 2021 is installed on the second support 2022 inside the lower mold base 201, so that the first support 2021 can abut against the second support 2022 to prevent interference between the first support 2021 and the second support 2022 when the second support 2022 moves downward relative to the first support 2021. The first support 2021 and the second support 2022 are only supported by the pushing force of the ordinary spring 62. This not only fails to ensure that the height of the two is consistent, but also fails to ensure that the two will not displace. Moreover, during the movement and displacement of the first support 2021 and the second support 2022, the connection between the two will inevitably collide. Therefore, in order to protect the mass of the first support 2021 and the second support 2022 and ensure that they are at the same height, a certain assembly gap is provided at the connection between the two. During assembly, the connecting plate 10 is placed in the assembly gap between the first support 2021 and the second support 2022. By replacing the connecting plate 10 with one of different thicknesses, the first support 2021 and the second support 2022 can be kept at the same horizontal height.

[0061] In this embodiment, a limiting rod 9 is also included. After adjusting the height difference between the first support 2021 and the second support 2022 by replacing the connecting plates 10 of different thicknesses, multiple limiting rods 9 are respectively inserted into the lower mold base 201, the first support 2021 and the second support 2022 to constrain and limit the height of the first support 2021 and the second support 2022, and to prevent the height of the first support 2021 and the second support 2022 from deviating.

[0062] In this embodiment, the compressive deformation force of the nitrogen spring 61 is greater than that of the ordinary spring 62. Under the same pressure, the nitrogen spring 61 will not deform or compress, while the ordinary spring 62 will compress and deform under pressure. Therefore, when the compressive deformation force of the nitrogen spring 61 is greater than that of the ordinary spring 62, it effectively prevents the upper mold assembly from driving the support device 202 downward relative to the lower mold base 201, thus preventing the upper mold base 101 from driving the second support device 20. As part 22 moves downwards, the pressing device 102, because it is not moving against the first support device 2021, causes the nitrogen spring 61 to deform and compress. The upper mold base 101 then slides relative to the pressing device 102 under the stroke of the nitrogen spring 61, causing the pressing device 102 and the upper mold base 101 to become misaligned. This prevents the entire support device 202 from moving downwards synchronously, and also causes a sliding misalignment between the first support device 2021 and the second support device 2022. Only the cutting process of the automotive part 16 can be completed, and the subsequent hole-making and flanging processes cannot be completed.

[0063] In this embodiment, the limiting mechanism includes a pad 31, which has multiple stroke holes 311 of different shapes. The pad 31 is sleeved on the ordinary spring 62 and the second guide post 72 inside the lower mold base 201 through the stroke holes 311. During assembly, the pad 31 is located below the first support 2021 and the second support 2022. When the pad 31 slides left and right, it can keep away from the ordinary spring 62 and the second guide post 72 through the stroke holes 311 to achieve the effect of left and right sliding. The pad 31 is also equipped with a pointer 15, which is inserted into the lower mold base 201 and fixedly installed with the pad 31 so as to confirm the displacement state of the pad 31 by the left and right displacement of the pointer 15.

[0064] In this embodiment, a power source component is also included, comprising a cylinder 32 and a control valve 33. The control valve 33 is located on the outside of the lower mold base 201 and is electrically connected to the cylinder 32. A retaining plate 321 is provided on the output end of the cylinder 32. The cylinder 32 and the retaining plate 321 are fixedly installed at the bottom of the lower mold base 201, and the cylinder 32 is fixedly installed on the pad 31 through the retaining plate 321. When the pad 31 is in the initial state, the pad 31 is on the far right. When the control valve 33 controls the cylinder 32 to run, the retaining plate 321 pushes the pad 31 to the far left, so that when the pad 31 is in the pushing state, the pointer 15 on the pad 31 also moves to the left.

[0065] See Figure 14 and Figure 15In this embodiment, when the pad 31 is in its initial state, the pad 31 and the first support 2021 always avoid each other to ensure that during the flanging and hole-making processes of the automotive part 16, the first support 2021's downward movement relative to the lower mold base 201 is not constrained by the pad 31, thus causing the upper mold base 101 to slide relative to the pressure device 102, which in turn drives the second support 2022 to move relative to the first support 2021 to achieve a cutting action. When the pad 31 is in the pushing position, the first support 2021 is constrained and fixed by the pad 31 during its downward movement, so as to facilitate the subsequent cutting operation with the second support 2022. See also Figure 8 and Figure 9 When the parts need to be cut, the cylinder 32 is controlled by the control valve 33 to switch the pad 31 to the pushing state. When the pointer 15 moves to the leftmost position, the cutting work can begin.

[0066] In this embodiment, the lower mold base 201, the first support 2021, and the second support 2022 are each provided with multiple wear-resistant plates 11, so that when the first support 2021 and the second support 2022 slide relative to the lower mold base 201, the wear-resistant plates 11 of the lower mold base 201 and the wear-resistant plates 11 of the first support 2021 and the second support 2022 rub against each other to ensure that they can maintain stable movement and will not cause any tilting or deviation.

[0067] See Figure 10 In this embodiment, the first support 2021 and the second support 2022 are provided with positioning frames 13, and the first support 2021 is provided with positioning molds 12, so that when the car part 16 is installed on the first support 2021 and the second support 2022, the positioning frames 13 and positioning molds 12 can be used to position and install the car part 16 to prevent the car part 16 from shifting left and right; wherein the positioning molds 12 can also be used to adapt to the subsequent piercing punch 41 and piercing die 42 to ensure the stability when performing piercing work.

[0068] In this embodiment, a flanging mechanism is provided between the upper mold assembly and the lower mold assembly. The flanging mechanism includes a driving block 43, a sliding mechanism, a flanging punch 41, and a flanging die 42. The driving block 43 and the flanging die 42 are fixed on the pressing device 102, and the first supporting device 2021 has a notch for inserting the driving block 43. The sliding mechanism is divided into a base 442 and a wedge sliding block 441. The base 442 is fixedly installed in the lower mold base 201, while the wedge sliding block 441 is installed on the base 442 and can slide relative to the base 442. The flanging punch 41 is fixed on the wedge sliding block 441 and can be adapted to multiple through holes on the positioning part. When the upper mold base 101 moves downward relative to the lower mold base 201... As the pressing device 102 drives the first support device 2021 downward, the driving block 43 on the pressing device 102 enters the notch of the first support device 2021 and abuts against the inclined wedge sliding block 441, causing the inclined wedge sliding block 441 to slide to the left on the base 442, so that the flipping punch 41 on the inclined wedge sliding block 441 can be obliquely inserted through the positioning part 12 and cooperate with the flipping die 42 to complete the flipping work; when the upper mold base 101 moves upward relative to the lower mold base 201, the pressing device 102 moves upward, the driving block 43 disengages from the inclined wedge sliding block 441, and the inclined wedge sliding block 441 automatically resets under the action of the spring (not shown in the figure) inside the base 442, causing the flipping punch 41 to also obliquely disengage from the flipping die 42 and automatically reset.

[0069] In this embodiment, when the upper mold base 101 moves downward relative to the lower mold base 201, the piercing die 42 on the presser 102 will press against the positioning part 12 of the first support 2021 to prevent the displacement of the automobile part 16 from causing deformation during piercing and to improve the quality of piercing the automobile part 16.

[0070] In this embodiment, a plurality of inserts 5 are provided between the upper mold assembly and the lower mold assembly; the inserts 5 are respectively provided on the upper mold base 101, the pressing device 102, the lower mold base 201, the first supporting device 2021, and the second supporting device 2022; wherein, the insert 5 of the pressing device 102 corresponds to the insert 5 of the first supporting device 2021, and the insert 5 of the upper mold base 101 corresponds to the insert 5 of the second supporting device 2022, and both can fit together to fix the automotive part 16; while the insert 5 on the lower mold base 201 is misaligned with the inserts 5 of the pressing device 102 and the first supporting device 2021, so as to achieve the flanging effect of the automotive part 16 when flanging is performed; the pressing device When 102 is assembled in the upper mold base 101, it is necessary to ensure that the insert 5 of the pressure device 102 and the insert 5 of the upper mold base 101 are at the same horizontal height. When the first support device 2021 and the second support device 2022 are adjusted in height, it is also necessary to ensure that the insert 5 of both are at the same horizontal height. This is to prevent the pressure device 102 and the insert 5 of the upper mold base 101 from being unable to evenly distribute the force on the insert 5 of the first support device 2021 and the second support device 2022 when the upper mold assembly drives the first support device 2021 and the second support device 2022 downward. This would easily lead to deformation or wrinkles in the automotive part 16 during subsequent processing.

[0071] See Figure 18 and Figure 19 In this embodiment, when the upper mold base 101 moves downward relative to the lower mold base 201, the pressing device 102 and the upper mold base 101 drive the first support device 2021 and the second support device 2022 downward, so that the insert 5 of the pressing device 102 is pressed against the insert 5 of the first support device 2021, and the insert 5 of the upper mold base 101 is pressed against the insert 5 of the second support device 2022, to prevent the automotive part 16 on the support device 202 from shifting. Then, the pressing device 102 and the upper mold base 101 continue to drive the first support device 2021 and the second support device 2022 downward. The pressing device 102 and the insert 5 of the first support device 2021 cooperate with each other, and the upper mold base 101 and the second support device 2022... The inserts 5 of the support device 2022 cooperate with each other to drive the entire car part 16 downward to abut against the insert 5 of the lower mold base 201, completing the flanging of the car part 16 and creating the flanged corner of the car part 16. Since the car part 16 is pressed and driven to abut against the insert 5 of the lower mold base 201, and the flanged corner is not constrained and fixed, only the flanging action will be performed during operation, and the cutting action will not be realized. Among them, when the entire car part 16 is driven downward to abut against the insert 5 of the lower mold base 201, the presser 102 and the insert 5 of the first support device 2021, and the upper mold base 101 and the insert 5 of the second support device 2022 will be vertically misaligned relative to the insert 5 of the lower mold base 201.

[0072] In this embodiment, when the upper mold base 101 moves downward relative to the lower mold base 201, the flanging die 42 on the pressing device 102 presses against the positioning part 12 of the first support device 2021 to position and constrain the automotive part 16; the insert 5 on the pressing device 102 presses against the insert 5 of the first support device 2021, and the insert 5 on the upper mold base 101 presses against the insert 5 of the second support device 2022 to also position and constrain the automotive part 16; by simultaneously constraining and fixing the entire automotive part 16, the flanging and flanging processes can be completed more effectively at the same time, thus ensuring the quality of the automotive part 16.

[0073] In this embodiment, during the cutting process, the limiting mechanism is switched to the pushing state. When the upper mold base 101 moves downward relative to the lower mold base 201, the pressing device 102 drives the first supporting device 2021 to move downward and abut against the pad 31 to constrain and fix the first supporting device 2021. When the upper mold base 101 continues to move downward, the pressing device 102 abuts against the first supporting device 2021, causing the nitrogen spring 61 to automatically compress, resulting in the upper mold base 101 sliding downward relative to the pressing device 102, driving the second supporting device 2022 to move downward relative to the first supporting device 2021, thus completing the cutting process. When the second supporting device 2022 moves downward relative to the first supporting device 2021, the inserts 5 of the pressing device 102 and the first supporting device 2021 are misaligned relative to the inserts 5 of the upper mold base 101 and the second supporting device 2022, which will cause the automotive parts 16 between the inserts 5 to be cut off.

[0074] See Figure 1 and Figure 2 In this embodiment, the lower mold base 201 is provided with a limiting seat 14, which has two end faces of different heights. A limiting block 141 is provided on the limiting seat 14, which can be respectively provided on the two end faces of the limiting seat 14 to ensure that the upper mold base 101 has two different maximum displacement strokes when it moves downward relative to the lower mold base 201. When the limiting block 141 is provided on the left end face, the upper mold base 101 will directly abut against the limiting block 141 when it moves downward, and can only perform the flanging and hole-making processes. When the limiting block 141 is provided on the right side, the flanging, hole-making and cutting processes can be performed.

[0075] The working principle and usage process of this invention are as follows: Before processing, the automobile part 16 is manually mounted on the first support 2021 and the second support 2022, and the positioning frame 13 and the positioning mold 12 are used to position and install the automobile part 16 to complete the pre-processing work. If the automobile part 16 needs to be flanged and holed; firstly, the limit block 141 is manually placed on the end face of the left side of the limit seat 14 so that the upper mold seat 101 can only perform the flanged and holed process stroke; at the same time, the pointer 15 is used to confirm whether the pad 31 is in the initial state. If it is not in the initial state, the control valve 33 is used to control the pad 31 to switch to the initial state; then, the upper mold seat 101 is controlled to move downward relative to the lower mold seat 201, and the upper mold seat 101 is completely against the limit. Before the positioning block 141, the inserts 5 of the upper mold base 101 and the pressing device 102 will first press and adhere tightly to the inserts 5 of the first supporting device 2021 and the second supporting device 2022, and the flipping die 42 will also press and adhere tightly to the positioning part 12 to simultaneously constrain and fix the entire automotive part 16; then, as the upper mold base 101 continues to descend, the driving block 43 on the pressing device 102 will enter the notch of the first supporting device 2021 and abut against the inclined wedge sliding block 441, driving the inclined wedge to slide. Block 441 slides to the left on the base 442, allowing the flanging punch 41 on the wedge sliding block 441 to obliquely pass through the positioning part 12 and cooperate with the flanging die 42 to complete the flanging work. At the same time, the pressing device 102 and the insert 5 of the first support device 2021 will cooperate with each other, and the upper die base 101 and the insert 5 of the second support device 2022 will cooperate with each other, driving the entire automotive part 16 downward to abut against the insert 5 of the lower die base 201, completing the flanging of the automotive part 16. The flanging of the automotive part 16 is achieved simultaneously with the flanging and edge-flanging. Finally, the upper mold base 101 moves upward relative to the lower mold base 201, the pressing device 102 moves upward with the upper mold base 101, the driving block 43 disengages from the wedge sliding block 441, and the wedge sliding block 441 automatically resets under the action of the spring (not shown) inside the base 442, which drives the flanging punch 41 to disengage obliquely from the flanging die 42 and automatically reset. After the upper mold base 101 has completed its upward movement, the next automotive part 16 can be replaced.

[0076] Similarly, if automotive part 16 requires flanging, hole punching, and cutting processes, firstly, the limiting block 141 is manually placed on the right end face of the limiting seat 14 to allow the upper mold base 101 to have the stroke for the cutting process; at the same time, the pointer 15 is used to confirm whether the pad 31 is in the pushing state. If it is not in the pushing state, the control valve 33 controls the pad 31 to switch to the pushing state; then, the upper mold base 101 is controlled to move downward relative to the lower mold base 201. Before the upper mold base 101 is completely against the limiting block 141, the part has automatically completed the above-mentioned flanging and hole punching processes; immediately after, after completing the flanging and hole punching processes, the pressing device 102 and the upper mold base 101 continue to move downward. The pressing device 102 drives the first support device 2021 to move downward against the pad 31 to constrain the first support device 2021. When the upper mold base 101 continues to descend, the pressure device 102 will abut against the first support device 2021, causing the nitrogen spring 61 to automatically compress. This causes the upper mold base 101 to slide downward relative to the pressure device 102, which in turn drives the second support device 2022 to descend relative to the first support device 2021. This causes the insert 5 between the upper mold base 101 and the second support device 2022 to be misaligned with the insert 5 between the pressure device 102 and the first support device 2021, thus achieving the cutting process for the automotive part 16. Finally, the upper mold base 101 moves upward relative to the lower mold base 201, and the nitrogen spring 61 and the ordinary spring 62 automatically reset. The inserts 5 between the upper mold base 101 and the pressure device 102, and the inserts 5 between the first support device 2021 and the second support device 2022 also automatically reset to maintain the same horizontal height. Therefore, this invention not only has a simple overall mold structure, but also allows for selective switching of mold processes by controlling cylinder 32; it can complete the flanging and edge-flanging of automotive parts in one go, as well as the cutting process. Many manual operations can be replaced by robotic arms, resulting in a high degree of automation, saving a lot of time, design and manufacturing costs, improving product quality, and making it more competitive in the market.

[0077] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this invention, but does not constitute a limitation on the scope of protection of this invention. Modifications, equivalent substitutions, or other improvements to the embodiments of this invention or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this invention or the foregoing embodiments, in conjunction with common knowledge, general technical knowledge, and / or existing technology, should all be included within the scope of protection of this invention.

Claims

1. A composite mold integrating multiple processes, characterized in that, include: Upper mold assembly, lower mold assembly, and limiting mechanism; The limiting mechanism has an initial state and a pushing state; a flipping mechanism and several inserts are provided between the upper mold assembly and the lower mold assembly; the upper mold assembly includes an upper mold base and a pressing device, wherein the pressing device is slidably disposed within the upper mold base; the lower mold assembly includes a lower mold base and a supporting device, wherein the supporting device includes a first supporting device and a second supporting device, wherein the first supporting device and the second supporting device are slidably disposed at the same height within the lower mold base. When the upper mold base moves downward relative to the lower mold base, the upper mold assembly drives the support device to slide downward relative to the lower mold base, so as to complete the flanging and edge-flanging of the part through the flanging mechanism and several inserts; when the limiting mechanism switches from the initial state to the pushing state, and the upper mold base moves downward relative to the lower mold base, the limiting mechanism constrains the first support device and the pressing device. This causes the upper mold base to slide downward relative to the pressure device, which in turn drives the second support device to slide downward relative to the first support device, so that the insert between the second support device and the first support device forms a misaligned shear difference to cut the part. The limiting mechanism includes a pad and a power source. The output end of the power source is fixed to the pad, so as to control the pad to switch back and forth between the initial state and the pushing state. The pad and the power source are disposed in the lower mold base. The pad is located below the first support and the second support during assembly. When the pad is in the initial state, the pad and the support device are always in a state of mutual avoidance. When the pad is in the pushing state and the upper mold base moves downward relative to the lower mold base, the first support will abut against the pad to constrain the first support and the pressure device, so that the upper mold base can slide downward relative to the pressure device.

2. The composite mold integrating multiple processes as described in claim 1, characterized in that, It also includes a first guiding device and a first guide post, which are fixedly installed in the upper mold base. The pressing device is slidably installed in the upper mold base through the first guide post, so as to provide thrust to the pressing device through the first guiding device.

3. A composite mold integrating multiple processes as described in claim 2, characterized in that, It also includes a positioning pin, which is inserted into the presser and the upper mold base to constrain the height of the presser and prevent the presser from disengaging from the upper mold base when the first guiding device provides thrust to the presser.

4. A composite mold integrating multiple processes as described in claim 2, characterized in that, It also includes a second guiding device and a second guide post, which are fixedly disposed in the lower mold base. The first support and the second support are slidably disposed in the lower mold base through the second guide post, so as to provide thrust to the first support and the second support through the second guiding device.

5. A composite mold integrating multiple processes as described in claim 4, characterized in that, It also includes several limiting rods, which are respectively inserted into the lower mold base, the first support device and the second support device to limit the height of the first support device and the second support device.

6. A composite mold integrating multiple processes as described in claim 4, characterized in that, The first guiding device is a nitrogen spring, and the second guiding device is a regular spring. The nitrogen spring has a greater compressive deformation force than the regular spring to prevent the nitrogen spring from deforming when the upper mold assembly drives the support device to slide downward relative to the lower mold base, thus preventing slippage between the upper mold base and the pressure device.

7. A composite mold integrating multiple processes as described in claim 1, characterized in that, It also includes a connecting plate, wherein the first support is disposed on top of the second support, and the connecting plate is disposed between the first support and the second support, so as to prevent a height difference between the first support and the second support through the connecting plate.

8. A composite mold integrating multiple processes as described in claim 1, characterized in that, The aforementioned hole-flipping mechanism includes a hole-flipping punch and a hole-flipping die, wherein the hole-flipping punch is fixedly mounted on the lower die base. The piercing die is fixed to the press, and the inserts are respectively disposed on the upper die assembly and the support device.

Images