Multi-cam press

Abstract

The present invention relates to a multi-cam press, comprising: a cam base fixed to a lower die; a first cam slider, configured to slide back and forth along a first direction of the cam base; at least one first punch unit, arranged in the first cam slider along the first direction; a cam driver, fixed to an upper die configured to move in a vertical direction relative to the lower die, and in contact with the first cam slider; a second cam slider, arranged in the cam driver to move back and forth in a second direction perpendicular to the first direction, and in contact with the cam base; and at least one second punch unit, arranged on the second cam slider along the second direction.

Description

Technical Field

[0001] The present invention relates to a press machine, and more particularly to a multi-directional multi-cam press machine for perforating panel materials on a vehicle body sub-assembly line. Background Art

[0002] Typically, to produce a finished body panel, several press forming processes must be performed, one of which is a perforation process that creates holes in the panel material.

[0003] The perforation process is performed by a cam type perforation press machine which forms perforations in the side surface of the panel material using an inclined cam structure. The cam type perforation press machine is provided on one side of the pressing die and is used to perform a pressing process on the panel material as a workpiece.

[0004] Recently, a multi-directional multi-cam type piercing press has been developed to perform piercing operations in different directions within the narrow structural space of the pressing die.

[0005] In the multi-directional multi-cam type perforating press, one cam driver is constructed in the upper die of the pressing die, and a plurality of cam slides are constructed in the lower die of the pressing die. Therefore, the cam driver moves the cam slide in different directions, and the panel material can be perforated in different directions by the perforating punches combined with the cam slides.

[0006] However, conventionally, since the cam slider is constructed in the lower mold, it is difficult to ensure space in the pressing mold. In addition, when the cam slider is reset, the driving distance of the cam slider must be extended to avoid interference caused by removing the panel material. However, when the cam slider is reset, the extension of the driving distance of the cam slider causes mutual interference.

[0007] The information disclosed in the background of the invention is only for enhancement of understanding of the general background of the invention and should not be regarded as an admission or any form of suggestion that this information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0008] Various aspects of the present invention are directed to a multi-directional multi-cam type press machine configured to perforate holes in different directions by driving a single cam within a narrow structural space of a pressing die.

[0009] A multi-directional multi-cam press according to various exemplary embodiments of the present invention includes: a cam base fixed to a lower mold; a first cam slider, configured to slide back and forth along a first direction of the cam base; at least one first punch unit, arranged in the first cam slider along the first direction; a cam driver, fixed to an upper mold configured to move in a vertical direction relative to the lower mold, and in contact with the first cam slider; a second cam slider, arranged in the cam driver to move back and forth in a second direction perpendicular to the first direction, and in contact with a side of the cam base; and at least one second punch unit, arranged on the second cam slider along the second direction.

[0010] In addition, the multi-directional multi-cam type press according to various exemplary embodiments of the present invention further includes: a return spring unit connected to the cam base and the first cam slider in the first direction.

[0011] Furthermore, in the multi-directional multi-cam type press according to various exemplary embodiments of the present invention, the return spring unit includes a gas spring.

[0012] Furthermore, the multi-directional multi-cam type press according to various exemplary embodiments of the present invention further includes a reset stopper which is disposed on the cam base corresponding to the first cam slider and is configured to limit a reset position of the first cam slider.

[0013] In addition, in a multi-directional multi-cam press according to various exemplary embodiments of the present invention, the cam base includes at least one main rail block, which is installed to be inclined downward from the rear side to the front side through a base inclined surface which is the upper surface of the cam base, and is slidably combined with a first cam slider.

[0014] In addition, in a multi-directional multi-cam press according to various exemplary embodiments of the present invention, the cam base includes a pair of auxiliary guide rail blocks, which are arranged on an inclined surface of the base, the main guide block is inserted between the pair of auxiliary guide rail blocks, and the pair of auxiliary guide rail blocks are slidably combined with the first cam slider.

[0015] Furthermore, in the multi-directional multi-cam type press according to various exemplary embodiments of the present invention, the first cam slider includes at least one driven cam plate installed to be tilted downward from the front side to the rear side corresponding to the cam driver.

[0016] In addition, in a multi-directional multi-cam press according to various exemplary embodiments of the present invention, the first cam slider includes a first guide plate, which is fixed on one side and another side of the first cam slider and is configured to contact the first guide block surface located on both sides of the cam base.

[0017] Furthermore, in the multi-directional multi-cam type press according to various exemplary embodiments of the present invention, the first cam slider includes a first return support block fixed on at least one side thereof and slidably coupled to the cam driver.

[0018] Furthermore, in the multi-directional multi-cam type press according to various exemplary embodiments of the present invention, the cam driver includes a second reset support block which is disposed on a side surface corresponding to the first reset support block and is slidably combined with the first reset support block.

[0019] Furthermore, in the multi-directional multi-cam type press according to various exemplary embodiments of the present invention, the cam driver includes a driving cam plate disposed in cam contact with a driven cam plate.

[0020] Furthermore, in the multi-directional multi-cam press according to various exemplary embodiments of the present invention, the cam driver includes a second guide plate disposed on a rear surface of the cam driver and configured to be in surface contact with a second guide block located on a rear side of the cam base.

[0021] In addition, in the multi-directional multi-cam press according to various exemplary embodiments of the present invention, the cam driver includes a guide rail member, which is arranged to be inclined downward from one side to the other side along the second direction from the rear side of the cam driver and is slidably combined with the second cam slider.

[0022] In addition, in a multi-directional multi-cam press according to various exemplary embodiments of the present invention, the guide rail member includes: a fixed end portion formed at one end and the other end of the guide rail member and fixed to a first side and a second side of the cam driver, respectively, and a guide limiter formed on the fixed end portion at one end and limiting the forward position of the second cam slider.

[0023] Furthermore, in the multi-directional multi-cam type press according to various exemplary embodiments of the present invention, the second cam slider has an engagement hole slidably combined with the guide rail member, and slides along the guide rail member between the fixed end portions.

[0024] In addition, the multi-directional multi-cam press according to various exemplary embodiments of the present invention further includes: a cam block, which is arranged on a base horizontal plane on the upper surface of the cam base, has a cam inclined surface inclined downward in the forward direction of the second cam slider, and is slidably coupled to the lower surface of the second cam slider.

[0025] Furthermore, in the multi-directional multi-cam type press according to various exemplary embodiments of the present invention, a cam groove for cam contact with the cam block is formed on a lower surface of the second cam slider.

[0026] Furthermore, in the multi-directional multi-cam type press according to various exemplary embodiments of the present invention, a guide groove is formed in the cam block along the second direction.

[0027] Furthermore, in the multi-directional multi-cam type press according to various exemplary embodiments of the present invention, a guide protrusion slidably coupled to the guide groove is provided at a lower portion of the second cam slider.

[0028] Furthermore, in the multi-directional multi-cam type press according to various exemplary embodiments of the present invention, the first punch unit and the second punch unit include a punching tool for punching a panel material.

[0029] According to an exemplary embodiment of the present invention, since perforation processing can be performed in different directions without process division even in a narrow structural space of a pressing mold, the space constraints of the pressing mold can be overcome, the mold manufacturing cost can be reduced, and the process time can be shortened.

[0030] In addition, the effects obtained or predicted by the exemplary embodiments of the present invention will be directly or implicitly included in the detailed description of the exemplary embodiments of the present invention. That is, various effects predicted according to various exemplary embodiments of the present invention will be included in the detailed description described later.

[0031] Other features and advantages of the method and apparatus of the present invention are apparent from or are described in more detail in the accompanying drawings, which are incorporated herein and in the following detailed description, and which together serve to explain certain principles of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 and Figure 2 is a perspective view showing a multi-directional multi-cam type press according to various exemplary embodiments of the present invention;

[0033] Figure 3A and Figure 3B is a side schematic diagram showing a multi-directional multi-cam press according to various exemplary embodiments of the present invention;

[0034] Figure 4 is a cross-sectional view schematically illustrating a multi-directional multi-cam press along a first direction according to various exemplary embodiments of the present invention;

[0035] Figure 5 is a cross-sectional view schematically illustrating a multi-directional multi-cam press along a second direction according to various exemplary embodiments of the present invention;

[0036] Figure 6 as well as Fig. 7A and Figure 7Bis a diagram showing a sliding and guiding structure of a first cam slider applied to a multi-directional multi-cam type press according to various exemplary embodiments of the present invention;

[0037] Figure 8 is a view showing a return spring unit applied to a multi-directional multi-cam type press according to various exemplary embodiments of the present invention;

[0038] Fig. 9 is a view showing a reset stopper applied to a multi-directional multi-cam type press according to various exemplary embodiments of the present invention;

[0039] Fig. 10A and Fig. 10B is a diagram showing a guide structure of a cam driver applied to a multi-directional multi-cam type press according to various exemplary embodiments of the present invention;

[0040] Fig.11 is a diagram showing a guide structure of a second cam slider applied to a cam driver applied to a multi-directional multi-cam type press according to various exemplary embodiments of the present invention;

[0041] Fig. 12A and Fig. 12B is a view showing a guide structure of a cam block and a second cam slider applied to a multi-directional multi-cam type press according to various exemplary embodiments of the present invention;

[0042] Fig.13 and Fig.14 1 and 2 are views for explaining the operation of the multi-directional multi-cam type press according to various exemplary embodiments of the present invention.

[0043] It will be appreciated that the accompanying drawings are not necessarily drawn to scale, but rather show somewhat simplified representations of various features illustrating the basic principles of the invention. The specific design features of the present invention as incorporated herein, including, for example, specific dimensions, orientations, locations, and shapes, will be determined in part by the particular intended application and use environment.

[0044] In the drawings, reference numbers refer to the same or equivalent parts of the present invention throughout the several figures of the drawing. DETAILED DESCRIPTION

[0045] Reference will now be made in detail to various embodiments of the present invention, examples of which are shown in the accompanying drawings and described below. Although the present invention will be described in conjunction with exemplary embodiments of the present invention, it should be understood that this specification is not intended to limit the present invention to those exemplary embodiments. On the other hand, the present invention is intended to cover not only the exemplary embodiments of the present invention, but also various substitutions, modifications, equivalents and other embodiments that may be included within the spirit and scope of the present invention as defined by the appended claims.

[0046] Exemplary embodiments of the present application will be described more fully below with reference to the accompanying drawings, in which exemplary embodiments of the present invention are shown. As will be appreciated by those skilled in the art, the described embodiments may also be modified in various different ways without departing from the spirit or scope of the present invention.

[0047] These drawings and descriptions should be regarded as illustrative in nature and not restrictive.Throughout the specification, like reference numerals refer to like elements.

[0048] Furthermore, the size and thickness of each component shown in the drawings are arbitrarily shown for understanding and ease of description, but the present invention is not limited thereto, and the thickness of parts, regions, etc. are exaggerated for clarity.

[0049] In the detailed description, in order to distinguish the same constituent elements, first, second, etc. are used as names of constituent elements, and do not indicate the order.

[0050] In addition, throughout the specification, unless explicitly described to the contrary, the word “comprise” and variations such as “comprising” and the like, will be understood to imply the inclusion of stated elements but not the exclusion of any other elements.

[0051] In addition, the terms “unit,” “means,” “portion,” and “member” described in the specification mean a unit of comprehensive constituent elements for performing at least one function and operation.

[0052] Figure 1 and Figure 2 is a perspective view showing a multi-directional multi-cam type press according to various exemplary embodiments of the present invention, and Figure 3A and Figure 3B 1 is a side schematic view showing a multi-directional multi-cam type press according to various exemplary embodiments of the present invention.

[0053] refer to Figures 1 to 3B The multi-directional multi-cam type press machine 100 according to various exemplary embodiments of the present invention may be applied to a sub-assembly line of a vehicle body factory that processes vehicle body parts such as a vehicle body panel assembled on a vehicle body through several press forming processes.

[0054] In the above-mentioned sub-assembly line, in addition to the stretch molding process of press-forming the vehicle body panel into a set shape, a trimming process, a perforating process, a flange edge banding process, and a forming process are performed.

[0055] Hereinafter, an example of processing perforations in a set portion of the panel material 1 using the multi-directional multi-cam type press machine 100 according to various exemplary embodiments of the present invention will be described.

[0056] The multi-directional multi-cam type press machine 100 according to various exemplary embodiments of the present invention may be configured on one side of a press mold system for press-forming the panel material 1 into a set shape.

[0057] The pressing die system includes a lower die 3 as a lower die or a fixed die, and an upper die 5 as an upper die or a movable die. In the above, the upper die 5 is arranged to be movable in the vertical direction relative to the lower die 3.

[0058] Hereinafter, based on the vertical direction, the front-rear direction is set as a first direction, and the left-right direction perpendicular to the first direction is set as a second direction.

[0059] In addition, in the following description, an end (one / an end or the other end / one end) may be defined as either end, and may be defined to include a portion of the end (one / an end or the other end / one end).

[0060] The multi-directional multi-cam type press machine 100 according to various exemplary embodiments of the present invention has a structure configured to punch holes in different directions by driving a single cam within a narrow structural space of a press die.

[0061] Figure 4 is a cross-sectional view schematically showing a multi-directional multi-cam press along a first direction according to various exemplary embodiments of the present invention, and Figure 5 2 is a cross-sectional view schematically illustrating a multi-directional multi-cam type press machine according to various exemplary embodiments of the present invention along a second direction.

[0062] refer to Figures 1 to 5 The multi-directional multi-cam press 100 according to various exemplary embodiments of the present invention mainly includes: a cam base 110, a first cam slider 210, a return spring unit 310, a return limiter 410, a first punch unit 510, a cam driver 610, a second cam slider 710, a second punch unit 810 and a cam block 910.

[0063] In various exemplary embodiments of the present invention, the cam base 110 is configured to be fixed to the lower mold 3 corresponding to a set portion of the panel material 1 for processing the perforation.

[0064] The cam base 110 has, on its upper surface, a base inclined surface 111 which is inclined downward from the rear side to the front side along a set first direction (front-rear direction, arrow A in the drawing).

[0065] In addition, a base horizontal surface 113 is formed on the upper surface of the cam base 110 behind the base inclined surface 111 along a second direction (left-right direction, arrow B in the figure) perpendicular to the first direction.

[0066] In addition, the cam base 110 may be provided with auxiliary elements, such as various brackets, plates, housings, covers and collars, for mounting subsequent components. However, since the above-mentioned auxiliary elements are used to mount the constituent elements on the cam base 110, in various exemplary embodiments of the present invention, except for special cases, the above-mentioned auxiliary elements are collectively referred to as the cam base 110.

[0067] In various exemplary embodiments of the present invention, the first cam slider 210 is disposed on the base inclined surface 111 of the cam base 110 to slide forward and backward along a first direction thereof.

[0068] The first cam slider 210 is configured as a slider type having two side surfaces while forming a vertical surface on its front side. The first cam slider 210 includes at least one driven cam plate 211 corresponding to the cam driver 610 (to be described later). The driven cam plates 211 are provided in plural numbers and are arranged on the first cam slider 210 in a downwardly inclined manner from front to rear.

[0069] In various exemplary embodiments of the present invention, a guide device is included for allowing the first cam slider 210 to slide forward and backward along the first direction through the base inclined surface 111 of the cam base 110 .

[0070] like Figure 6 As shown, the guiding device includes a main guide block 121 and a secondary guide block 131 arranged on the cam base 110 , and a first guide plate 221 arranged on the first cam slider 210 .

[0071] The main rail block 121 is fixed on the base inclined surface 111. The main rail block 121 is arranged to be inclined downward from the rear side to the front side along the first direction. The main rail block 121 is arranged in one or a pair and is slidably coupled to the lower surface of the first cam slider 210.

[0072] The auxiliary rail blocks 131 are arranged in pairs and fixed on the base inclined surface 111, and the main rail block 121 is inserted between the auxiliary rail blocks 131. The auxiliary rail blocks 131 are arranged on the base inclined surface 111 to be inclined downward from the rear side to the front side along the first direction thereof. The auxiliary rail blocks 131 are slidably coupled to the lower surface of the first cam slider 210.

[0073] In addition, the first guide plates 221 are respectively fixed on both sides of the first cam slider 210. The first guide plates 221 are disposed to be in surface contact with the first guide blocks 141 located on both sides of the cam base 110.

[0074] In addition, the first cam slider 210 further includes a first reset support block 231 fixed on one side thereof. Fig. 7A and Figure 7B The first return support block 231 is configured to support the return operation of the first cam slider 210 relative to the cam driver 610 (to be described later).

[0075] The first reset support block 231 is fastened to one side of the first cam slider 210. A support protrusion 233 slidably coupled to the cam driver 610 is formed at an upper end portion of the first reset support block 231.

[0076] In various exemplary embodiments of the present invention, the return spring unit 310 is used to return the first cam slider 210 that slides to the front side to its initial position. The return spring unit 310 is connected to the front side of the cam base 110 and the front side of the first cam slider 210 in the first direction, such as Figure 8 shown.

[0077] The return spring unit 310 may include a gas spring 311. The gas spring 311 is located between the inner side of a cylinder connected to the front side of the cam base 110 and the inner side of another cylinder connected to the front side of the first cam slider 210. In addition, it has a gas spring structure of a known technology in which these cylinders are connected in a sliding manner.

[0078] In various exemplary embodiments of the present invention, Fig. 9 As shown, the reset limiter 410 is used to limit the reset position of the first cam slider 210 , and is disposed on the rear side of the cam base 110 corresponding to the first cam slider 210 .

[0079] The return stopper 410 includes a buffering protrusion 411 for buffering the impact with the first cam slider 210. For example, the buffering protrusion 411 may be fixed to the stopper block 431 in the form of a block made of a rubber material and may be arranged to flow to the stopper block 431 through a separate spring.

[0080] refer to Figures 1 to 5 In various exemplary embodiments of the present invention, the first punch unit 510 is used to process a perforation in a set portion of the panel material 1 by sliding the first cam slider 210 in a first direction.

[0081] The first punch unit 510 is fixed to the first cam slider 210 in the first direction. The first punch unit 510 includes a plurality of punching tools 511 disposed on the front surface of the first cam slider 210. The punching tools 511 are disposed on the front surface of the first cam slider 210 to be spaced at predetermined intervals in the second direction.

[0082] refer to Figures 1 to 5 In various exemplary embodiments of the present invention, the cam driver 610 is used to provide a cam driving force to the first cam slider 210 so that the first cam slider 210 can slide.

[0083] The cam driver 610 is provided to be fixed to the upper die 5 of the press die system corresponding to the first cam slider 210. The cam driver 610 is provided to be in cam contact with the driven cam plate 211 of the first cam slider 210.

[0084] The cam driver 610 includes a driving cam plate 611, a second guide plate 621, and a second reset support block 631 (see below). Fig. 7A and Figure 7B ).

[0085] The driving cam plate 611 is disposed below the cam driver 610 to allow cam (sliding) contact with the driven cam plate 211 of the first cam slider 210 .

[0086] like Fig. 10A and Fig. 10B As shown, the second guide plate 621 is provided on the rear surface of the cam driver 610. The second guide plate 621 is provided to be in surface contact with the second guide block 151 provided at the rear side of the cam base 110. The second guide plate 621 is configured to guide the cam driver 610 in a vertical direction through the second guide block 151.

[0087] In addition, the second reset support block 631 is provided on a side of the cam driver 610 corresponding to the first reset support block 231 of the first cam slider 210. The second reset support block 631 is slidably coupled to the first reset support block 231.

[0088] Here, the second reset support block 631 supports the reset movement of the first cam slider 210 and is slidably coupled to the support protrusion 233 of the first reset support block 231. When the cam driver 610 rises, the second reset support block 631 assists the reset movement of the first cam slider 210 while pulling the first reset support block 231 of the first cam slider 210, giving play to the function.

[0089] refer to Figures 1 to 5In various exemplary embodiments of the present invention, the second cam slider 710 makes cam contact with the cam base 110 side by movement (driving) of the cam driver 610 and slides forward and backward along a second direction perpendicular to the first direction.

[0090] The second cam slider 710 has a block shape, and is provided to be slidably moved to the rear side of the cam driver 610. To this end, the cam driver 610 includes a guide rail member 641.

[0091] The guide rail member 641 guides the sliding movement of the second cam slider 710. Fig.11 As shown, the guide rail member 641 is slidably combined with the second cam slider 710 at the rear side of the cam driver 610, and is configured to be tilted downward from one side to the other side along the second direction.

[0092] The guide rail member 641 includes fixed end portions 643 formed at one end portion and the other end portion thereof, and a guide stopper 645 formed at the fixed end portion 643 at one end portion thereof.

[0093] The fixing end portions 643 are fixed to one side and the other side respectively from the rear side of the cam driver 610. Here, the second cam slider 710 slides between the fixing end portions 643 along the guide rail member 641 and forms a coupling hole 711 slidably coupled with the guide rail member 641.

[0094] The guide stopper 645 limits the forward position of the second cam slider 710 , and is integrally formed with the fixed end portion 643 at one end portion of the guide rail member 641 .

[0095] Here, when the cam driver 610 is positioned above the first cam slider 210 , the second cam slider 710 is in a state of moving downward (reverse) in the other direction of the cam driver 610 along the guide rail member 641 .

[0096] In addition, when the cam driver 610 moves downward and comes into cam contact with the first cam slider 210, the second cam slider 710 follows the guide rail member 641 to one side of the cam driver 610. It moves upward (forward) in this direction and catches the guide stopper 645.

[0097] refer to Figures 1 to 5 In various exemplary embodiments of the present invention, the second punch unit 810 is used to process a perforation in a set portion of the panel material 1 by sliding the second cam slider 710 in the second direction.

[0098] The second punch unit 810 (in the singular) is fixed on the second cam slider 710 in the second direction. The second punch unit 810 includes a punching tool 811 provided on a side surface of the second cam slider 710.

[0099] refer to Figures 1 to 5 In various exemplary embodiments of the present invention, the cam block 910 selectively performs cam contact with the second cam slider 710 through vertical movement of the cam driver 610 and causes the second cam slider 710 to slide forward and backward in the second direction.

[0100] The cam block 910 is fixed on the upper surface of the cam base 110 and is disposed on the horizontal base surface 113 of the cam base 110 in the second direction. The cam block 910 has a cam inclined surface 911 inclined downward in the advancing direction of the second cam slider 710 and is slidably coupled to the lower surface of the second cam slider 710. Therefore, a cam groove 721 is formed on the lower surface of the second cam slider 710 to slide with the cam block 910 and contact the cam.

[0101] In addition, if Fig. 12A and Fig. 12B As shown, the cam block 910 forms a guide groove 921 along the second direction. In addition, a guide protrusion 731 slidably combined with the guide groove 921 is integrally provided at the lower portion of the second cam slider 710 .

[0102] When the cam driver 610 rises, the guide protrusion 731 is configured to pull the second cam slider 710 through the guide slot 921 while assisting the resetting movement of the second cam slider 710 .

[0103] Hereinafter, the operation of the multi-directional multi-cam type press machine 100 according to various exemplary embodiments of the present invention configured as described above will be described in detail with reference to the previously included figures and drawings.

[0104] Fig.13 and Fig.14 1 and 2 are views for explaining the operation of the multi-directional multi-cam type press according to various exemplary embodiments of the present invention.

[0105] refer to Fig.13 and Fig.14 First, in various exemplary embodiments of the present invention, the upper mold 5 is in a state of moving upward relative to the lower mold 3. Therefore, the cam driver 610 is in a state of moving downward relative to the first cam slider 210 on the cam base 110.

[0106] Here, the first cam slider 210 moves upward and backward in the first direction together with the first punch unit 510 through the main guide block 121 , the auxiliary guide block 131 , and the first guide plate 221 .

[0107] In the present case, the first cam slider 210 is elastically supported by the return spring unit 310 through the cam base 110 , and is in close contact with the return stopper 410 .

[0108] Furthermore, when the cam driver 610 is located above the first cam slider 210 , the second cam slider 710 moves rearward and downward along the guide rail member 641 .

[0109] In the state as described above, in the exemplary embodiment of the present invention, the upper mold 5 moves downward relative to the lower mold 3, and the panel material 1 is molded into a set shape. In this process, in the exemplary embodiment of the present invention, as in the drawings included above, the cam driver 610 also moves in the downward direction together with the upper mold 5. Here, the cam driver 610 is guided downward along the second guide block 151 of the cam base 110 by the second guide plate 621.

[0110] Therefore, the cam driver 610 makes cam contact with the driven cam plate 211 of the first cam slider 210 through the driving cam plate 611. Therefore, the cam driver 610 moves the first cam slider 210 together with the first punch unit 510 forward and downward in the first direction.

[0111] Here, the first cam slider 210 slides forward in the first direction while overcoming the elastic force of the return spring unit 310 through the main rail block 121 , the auxiliary rail block 131 , and the first guide plate 221 .

[0112] During this process, as the cam driver 610 descends, the second cam slider 710 cams into contact with the cam inclined surface 911 of the cam block 910 through the cam groove 721 on the lower surface. Therefore, the second cam slider 710 moves upward and forward along the guide rail member 641 and engages with the guide stopper 645.

[0113] In the above process, the second cam slider 710 moves downward along the second direction together with the second punch unit 810 through the cam block 910 .

[0114] Therefore, in various exemplary embodiments of the present invention, while undergoing a series of processes as described above, perforations in the first direction are processed in the panel material 1 by the perforation tool 511 of the first punch unit 510. In addition, in various exemplary embodiments of the present invention, perforations in the second direction may be processed in the panel material 1 by the perforation tool 811 of the second punch unit 810.

[0115] On the other hand, in a state where the perforation is processed in the set portion of the panel material 1 as described above, when the upper die 5 moves upward relative to the lower die 3, the cam driver 610 also moves upward.

[0116] Therefore, in various exemplary embodiments of the present invention, the first cam slider 210 is reset to its initial position when it moves backward under the elastic force of the reset spring unit 310. In addition, in various exemplary embodiments of the present invention, the second cam slider 710 is reset to its initial position when it moves backward under the elastic force of a spring not shown.

[0117] In the multi-directional multi-cam press 100 according to various exemplary embodiments of the present invention described so far, the cam base 110 is provided with the first cam slider 210 , and the cam driver 610 is provided with the second cam slider 710 moving in a direction different from the first cam slider 210 .

[0118] Therefore, in various exemplary embodiments of the present invention, by driving a single cam by the cam driver 610 , the first cam slider and the second cam slider 710 are moved in different directions and perforations are formed in the panel material 1 in different directions.

[0119] Therefore, according to an exemplary embodiment of the present invention, since perforation processing can be performed in different directions without process division even in the narrow structural space of the pressing mold, the space constraints of the pressing mold can be overcome, and the mold manufacturing cost and process time can be reduced.

[0120] In addition, in various exemplary embodiments of the present invention, the cam driving force of the cam driver 610 can be directly transmitted to the first cam slider 210 and the second cam slider 710 without passing through a separate medium slider. Therefore, the driving distance of the cam sliders 210 and 710 can be fully ensured without causing interference between the cam sliders 210 and 710.

[0121] For ease of explanation and accurate definition in the appended claims, the terms "upper", "lower", "inner", "outer", "upward", "downward", "upward", "downward", "front", "rear", "back", "inside", "outside", "inward", "outward", "interior", "exterior", "inner", "exterior", "inner", "outward", "forward" and "rearward" are used to describe features of the exemplary embodiments as shown in the drawings with reference to their locations. It will also be understood that the term "connect" or its derivatives refer to both direct and indirect connections.

[0122] Specific exemplary embodiments of the present invention have been described above for the purpose of illustration and description. They are not intended to be exhaustive or limit the present invention to the precise form disclosed, and it is apparent that many modifications and variations are possible in light of the above teachings. Exemplary embodiments are selected and described to explain certain principles of the present invention and their practical applications, so that other persons skilled in the art can make and utilize various exemplary embodiments of the present invention and various substitutions and modifications thereof. The scope of the present invention is intended to be limited by the appended claims and their equivalents.

Claims

1. A multi-directional multi-cam press, comprising: a cam base secured to the lower die; A first cam slider is configured to slide back and forth along a first direction of the cam base; at least one first punch unit disposed in the first cam slider along the first direction; a cam driver fixed to an upper mold configured to move in a vertical direction relative to the lower mold and in contact with the first cam slider; a second cam slider disposed in the cam driver to move back and forth in a second direction perpendicular to the first direction and in contact with the cam base; as well as at least one second punch unit, arranged on the second cam slider along the second direction, Wherein, through the vertical movement of the cam driver, the cam driver makes cam contact with the first cam slider, so that the first cam slider moves in the first direction, and the second cam slider selectively makes cam contact with the cam block fixed on the upper surface of the cam base, so that the second cam slider moves in the second direction.

2. The multi-directional multi-cam press according to claim 1, further comprising: A return spring unit is connected to the cam base and the first cam slider along the first direction.

3. The multi-directional multi-cam press according to claim 2, wherein: The return spring unit includes a gas spring.

4. The multi-directional multi-cam press according to claim 2, further comprising: A reset limiter is arranged on the cam base corresponding to the first cam slider and is configured to limit a reset position of the first cam slider.

5. The multi-directional multi-cam press according to claim 1, wherein: The cam base includes at least one main rail block which is installed to be inclined downward from the rear side to the front side through a base inclined surface which is an upper surface of the cam base and is slidably combined with the first cam slider.

6. The multi-directional multi-cam press according to claim 5, wherein: The cam base includes a pair of auxiliary guide rail blocks, which are arranged on the inclined surface of the base, the main guide block is inserted between the pair of auxiliary guide rail blocks, and the pair of auxiliary guide rail blocks are slidably combined with the first cam slider.

7. The multi-directional multi-cam type press according to claim 1, wherein the first cam slider includes at least one driven cam plate installed to be tilted downward from a front side to a rear side corresponding to the cam driver.

8. The multi-directional multi-cam press according to claim 7, wherein the first cam slider includes a first guide plate, which is fixed on one side and the other side of the first cam slider and is configured to contact the first guide blocks located on the first side and the second side of the cam base.

9. The multi-directional multi-cam press according to claim 1, wherein the first cam slider includes a first return support block fixed on at least one side thereof and slidably coupled to the cam driver.

10. The multi-directional multi-cam type press according to claim 9, wherein the cam driver comprises a second reset support block, which is disposed on a side surface corresponding to the first reset support block and is slidably combined with the first reset support block.

11. The multi-directional, multi-cam press of claim 7, wherein the cam driver includes a driving cam plate disposed in contact with the at least one driven cam plate.

12. The multi-directional multi-cam press according to claim 1, wherein the cam driver includes a second guide plate disposed on a rear surface of the cam driver and configured to contact a second guide block located on a rear side of the cam base.

13. The multi-directional multi-cam press according to claim 1, wherein the cam driver includes a guide member which is arranged to be inclined downward from one side to the other side along the second direction from the rear side of the cam driver and is slidably combined with the second cam slider.

14. The multi-directional multi-cam press according to claim 13, wherein the guide rail member comprises: a first fixed end portion and a second fixed end portion, respectively formed at one end portion and the other end portion of the guide rail member and respectively fixed to a first side and a second side of the cam driver, and A guide stopper is formed on a fixed end portion of the one end portion and limits a forward position of the second cam slider.

15. The multi-directional multi-cam type press machine according to claim 14, wherein the second cam slider has an engagement hole slidably combined with the guide rail member, and slides along the guide rail member between the first fixed end portion and the second fixed end portion.

16. The multi-directional multi-cam press of claim 1 further comprising: The cam block, which is disposed on a base level surface of an upper surface of the cam base, has a cam inclined surface inclined downward in an advancing direction of the second cam slider, and is slidably coupled to a lower surface of the second cam slider.

17. The multi-directional multi-cam press according to claim 16, wherein: A cam groove for contacting the cam block is formed on a lower surface of the second cam slider.

18. The multi-directional multi-cam press of claim 16, wherein: A guide groove is formed in the cam block along the second direction, and A guide protrusion slidably coupled to the guide groove is provided at a lower portion of the second cam slider.

19. The multi-directional multi-cam press according to claim 1, wherein: The at least one first punch unit and the at least one second punch unit include perforating tools for perforating a panel material.

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